Update changelog for upcoming 3.0.3 release, annotate rc1

linux/LinuxProcessList.c:1403:63: runtime error: division by zero
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior linux/LinuxProcessList.c:1403:63 in

.editorconfig

@@ -14,3 +14,4 @@ charset = utf-8
 [*.{c,h}]
 indent_style = space
 indent_size = 3
+trim_trailing_whitespace = true

.github/workflows/ci.yml

@@ -0,0 +1,110 @@
+name: CI
+
+on: [ push, pull_request ]
+
+jobs:
+  build-ubuntu-latest-minimal-gcc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Dependencies
+      run: sudo apt-get install libncursesw5-dev
+    - name: Bootstrap
+      run: ./autogen.sh
+    - name: Configure
+      run: ./configure --enable-werror --enable-linux-affinity --disable-unicode --without-sensors
+    - name: Enable compatibility modes
+      run: |
+        sed -i 's/#define HAVE_FSTATAT 1/#undef HAVE_FSTATAT/g' config.h
+        sed -i 's/#define HAVE_OPENAT 1/#undef HAVE_OPENAT/g' config.h
+        sed -i 's/#define HAVE_READLINKAT 1/#undef HAVE_READLINKAT/g' config.h
+    - name: Build
+      run: make -k
+    - name: Distcheck
+      run: make distcheck DISTCHECK_CONFIGURE_FLAGS="--enable-werror --enable-linux-affinity --disable-unicode --without-sensors"
+
+  build-ubuntu-latest-minimal-clang:
+    runs-on: ubuntu-latest
+    env:
+      CC: clang-11
+    steps:
+    - uses: actions/checkout@v2
+    - name: install clang repo
+      run: |
+        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key 2>/dev/null | sudo apt-key add -
+        sudo add-apt-repository 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main' -y
+        sudo apt-get update -q
+    - name: Install Dependencies
+      run: sudo apt-get install clang-11 libncursesw5-dev
+    - name: Bootstrap
+      run: ./autogen.sh
+    - name: Configure
+      run: ./configure --enable-werror --enable-linux-affinity --disable-unicode --without-sensors
+    - name: Build
+      run: make -k
+    - name: Distcheck
+      run: make distcheck DISTCHECK_CONFIGURE_FLAGS="--enable-werror --enable-linux-affinity --disable-unicode --without-sensors"
+
+  build-ubuntu-latest-full-featured-gcc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Dependencies
+      run: sudo apt-get install libncursesw5-dev libhwloc-dev libnl-3-dev libnl-genl-3-dev libsensors4-dev
+    - name: Bootstrap
+      run: ./autogen.sh
+    - name: Configure
+      run: ./configure --enable-werror --enable-openvz --enable-vserver --enable-ancient-vserver --enable-unicode --enable-hwloc --enable-setuid --enable-delayacct --with-sensors
+    - name: Build
+      run: make -k
+    - name: Distcheck
+      run: make distcheck DISTCHECK_CONFIGURE_FLAGS='--enable-werror --enable-openvz --enable-vserver --enable-ancient-vserver --enable-unicode --enable-hwloc --enable-setuid --enable-delayacct --with-sensors'
+
+  build-ubuntu-latest-full-featured-clang:
+    runs-on: ubuntu-latest
+    env:
+      CC: clang-11
+    steps:
+    - uses: actions/checkout@v2
+    - name: install clang repo
+      run: |
+        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key 2>/dev/null | sudo apt-key add -
+        sudo add-apt-repository 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main' -y
+        sudo apt-get update -q
+    - name: Install Dependencies
+      run: sudo apt-get install clang-11 libncursesw5-dev libhwloc-dev libnl-3-dev libnl-genl-3-dev libsensors4-dev
+    - name: Bootstrap
+      run: ./autogen.sh
+    - name: Configure
+      run: ./configure --enable-werror --enable-openvz --enable-vserver --enable-ancient-vserver --enable-unicode --enable-hwloc --enable-setuid --enable-delayacct --with-sensors
+    - name: Build
+      run: make -k
+    - name: Distcheck
+      run: make distcheck DISTCHECK_CONFIGURE_FLAGS='--enable-werror --enable-openvz --enable-vserver --enable-ancient-vserver --enable-unicode --enable-hwloc --enable-setuid --enable-delayacct --with-sensors'
+
+  build-ubuntu-latest-clang-analyzer:
+    runs-on: ubuntu-latest
+    env:
+      CC: clang-11
+    steps:
+    - uses: actions/checkout@v2
+    - name: install clang repo
+      run: |
+        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key 2>/dev/null | sudo apt-key add -
+        sudo add-apt-repository 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main' -y
+        sudo apt-get update -q
+    - name: Install Dependencies
+      run: sudo apt-get install clang-11 clang-tools-11 libncursesw5-dev libhwloc-dev libnl-3-dev libnl-genl-3-dev libsensors4-dev
+    - name: Bootstrap
+      run: ./autogen.sh
+    - name: Configure
+      run: scan-build-11 -analyze-headers --status-bugs ./configure --enable-debug --enable-werror --enable-openvz --enable-vserver --enable-ancient-vserver --enable-unicode --enable-hwloc --enable-setuid --enable-delayacct --with-sensors
+    - name: Build
+      run: scan-build-11 -analyze-headers --status-bugs make -j"$(nproc)"
+
+  whitespace_check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: check-whitespaces
+        run: git diff-tree --check $(git hash-object -t tree /dev/null) HEAD

.gitignore

@@ -4,6 +4,12 @@ htop
 # all object files
 *.o
 
+# skip all backups
+*.bak
+*~
+.*.sw?
+
+# skip coverage files
 *.gcda
 */*.gcda
 *.gcno
@@ -11,17 +17,21 @@ htop
 *.h.gch
 */.dirstamp
 
+# automake/autoconf related files
 .deps/
 Makefile
 Makefile.in
+INSTALL
 aclocal.m4
 autom4te.cache/
 compile
+conf*/
 config.guess
 config.h
 config.h.in
 config.log
 config.status
+config.cache
 config.sub
 configure
 depcomp
@@ -33,3 +43,5 @@ m4/
 missing
 stamp-h1
 
+# files related to valgrind/callgrind
+callgrind.out.*

.travis.yml

@@ -5,7 +5,22 @@ compiler:
   - gcc
 
 os:
+  - freebsd
   - linux
   - osx
 
-script: ./autogen.sh && ./configure && make
+arch:
+  - amd64
+  - s390x
+
+before_script:
+  if [[ ${TRAVIS_CPU_ARCH} == 's390x' ]]; then
+      sudo apt-get update && sudo apt-get install -y libncursesw5-dev ;
+  fi
+
+script:
+  - ./autogen.sh
+  # clang might warn about C11 generic selections in isnan()
+  - CFLAGS=-Wno-c11-extensions ./configure --enable-werror
+  - make -k
+  - CFLAGS=-Wno-c11-extensions make distcheck DISTCHECK_CONFIGURE_FLAGS=--enable-werror

Action.c

@@ -1,82 +1,60 @@
 /*
 htop - Action.c
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "config.h"
+#include "config.h" // IWYU pragma: keep
 
 #include "Action.h"
-#include "Affinity.h"
-#include "AffinityPanel.h"
+
+#include <pwd.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
 #include "CategoriesPanel.h"
+#include "CommandScreen.h"
 #include "CRT.h"
 #include "EnvScreen.h"
+#include "FunctionBar.h"
+#include "Hashtable.h"
+#include "IncSet.h"
+#include "InfoScreen.h"
+#include "ListItem.h"
+#include "Macros.h"
 #include "MainPanel.h"
 #include "OpenFilesScreen.h"
 #include "Process.h"
+#include "ProcessLocksScreen.h"
+#include "ProvideCurses.h"
 #include "ScreenManager.h"
 #include "SignalsPanel.h"
-#include "StringUtils.h"
 #include "TraceScreen.h"
-#include "Platform.h"
+#include "Vector.h"
+#include "XUtils.h"
 
-#include <ctype.h>
-#include <math.h>
-#include <pwd.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <sys/param.h>
-#include <sys/time.h>
+#if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))
+#include "Affinity.h"
+#include "AffinityPanel.h"
+#endif
 
-/*{
 
-#include "IncSet.h"
-#include "Settings.h"
-#include "Header.h"
-#include "UsersTable.h"
-#include "ProcessList.h"
-#include "Panel.h"
-
-typedef enum {
-   HTOP_OK = 0x00,
-   HTOP_REFRESH = 0x01,
-   HTOP_RECALCULATE = 0x03, // implies HTOP_REFRESH
-   HTOP_SAVE_SETTINGS = 0x04,
-   HTOP_KEEP_FOLLOWING = 0x08,
-   HTOP_QUIT = 0x10,
-   HTOP_REDRAW_BAR = 0x20,
-   HTOP_UPDATE_PANELHDR = 0x41, // implies HTOP_REFRESH
-} Htop_Reaction;
-
-typedef Htop_Reaction (*Htop_Action)();
-
-typedef struct State_ {
-   Settings* settings;
-   UsersTable* ut;
-   ProcessList* pl;
-   Panel* panel;
-   Header* header;
-} State;
-
-}*/
-
-Object* Action_pickFromVector(State* st, Panel* list, int x) {
+Object* Action_pickFromVector(State* st, Panel* list, int x, bool followProcess) {
    Panel* panel = st->panel;
    Header* header = st->header;
    Settings* settings = st->settings;
 
    int y = panel->y;
-   ScreenManager* scr = ScreenManager_new(0, header->height, 0, -1, HORIZONTAL, header, settings, false);
+   ScreenManager* scr = ScreenManager_new(header, settings, st, false);
    scr->allowFocusChange = false;
    ScreenManager_add(scr, list, x - 1);
    ScreenManager_add(scr, panel, -1);
    Panel* panelFocus;
    int ch;
    bool unfollow = false;
-   int pid = MainPanel_selectedPid((MainPanel*)panel);
-   if (header->pl->following == -1) {
+   int pid = followProcess ? MainPanel_selectedPid((MainPanel*)panel) : -1;
+   if (followProcess && header->pl->following == -1) {
       header->pl->following = pid;
       unfollow = true;
    }
@@ -88,52 +66,57 @@ Object* Action_pickFromVector(State* st, Panel* list, int x) {
    Panel_move(panel, 0, y);
    Panel_resize(panel, COLS, LINES - y - 1);
    if (panelFocus == list && ch == 13) {
+      if (followProcess) {
          Process* selected = (Process*)Panel_getSelected(panel);
          if (selected && selected->pid == pid)
             return Panel_getSelected(list);
-      else
+
          beep();
+      } else {
+         return Panel_getSelected(list);
       }
+   }
+
    return NULL;
 }
 
 // ----------------------------------------
 
-static void Action_runSetup(Settings* settings, const Header* header, ProcessList* pl) {
-   ScreenManager* scr = ScreenManager_new(0, header->height, 0, -1, HORIZONTAL, header, settings, true);
-   CategoriesPanel* panelCategories = CategoriesPanel_new(scr, settings, (Header*) header, pl);
+static void Action_runSetup(State* st) {
+   ScreenManager* scr = ScreenManager_new(st->header, st->settings, st, true);
+   CategoriesPanel* panelCategories = CategoriesPanel_new(scr, st->settings, st->header, st->pl);
    ScreenManager_add(scr, (Panel*) panelCategories, 16);
    CategoriesPanel_makeMetersPage(panelCategories);
    Panel* panelFocus;
    int ch;
    ScreenManager_run(scr, &panelFocus, &ch);
    ScreenManager_delete(scr);
-   if (settings->changed) {
-      Header_writeBackToSettings(header);
+   if (st->settings->changed) {
+      Header_writeBackToSettings(st->header);
    }
 }
 
 static bool changePriority(MainPanel* panel, int delta) {
    bool anyTagged;
-   bool ok = MainPanel_foreachProcess(panel, (MainPanel_ForeachProcessFn) Process_changePriorityBy, delta, &anyTagged);
+   bool ok = MainPanel_foreachProcess(panel, Process_changePriorityBy, (Arg) { .i = delta }, &anyTagged);
    if (!ok)
       beep();
    return anyTagged;
 }
 
-static void addUserToVector(int key, void* userCast, void* panelCast) {
-   char* user = (char*) userCast;
-   Panel* panel = (Panel*) panelCast;
+static void addUserToVector(hkey_t key, void* userCast, void* panelCast) {
+   const char* user = userCast;
+   Panel* panel = panelCast;
    Panel_add(panel, (Object*) ListItem_new(user, key));
 }
 
 bool Action_setUserOnly(const char* userName, uid_t* userId) {
-   struct passwd* user = getpwnam(userName);
+   const struct passwd* user = getpwnam(userName);
    if (user) {
       *userId = user->pw_uid;
       return true;
    }
-   *userId = -1;
+   *userId = (uid_t)-1;
    return false;
 }
 
@@ -142,7 +125,7 @@ static void tagAllChildren(Panel* panel, Process* parent) {
    pid_t ppid = parent->pid;
    for (int i = 0; i < Panel_size(panel); i++) {
       Process* p = (Process*) Panel_get(panel, i);
-      if (!p->tag && p->ppid == ppid) {
+      if (!p->tag && Process_isChildOf(p, ppid)) {
          tagAllChildren(panel, p);
       }
    }
@@ -150,15 +133,33 @@ static void tagAllChildren(Panel* panel, Process* parent) {
 
 static bool expandCollapse(Panel* panel) {
    Process* p = (Process*) Panel_getSelected(panel);
-   if (!p) return false;
+   if (!p)
+      return false;
+
    p->showChildren = !p->showChildren;
    return true;
 }
 
+static bool collapseIntoParent(Panel* panel) {
+   Process* p = (Process*) Panel_getSelected(panel);
+   if (!p)
+      return false;
+
+   pid_t ppid = Process_getParentPid(p);
+   for (int i = 0; i < Panel_size(panel); i++) {
+      Process* q = (Process*) Panel_get(panel, i);
+      if (q->pid == ppid) {
+         q->showChildren = false;
+         Panel_setSelected(panel, i);
+         return true;
+      }
+   }
+   return false;
+}
+
 Htop_Reaction Action_setSortKey(Settings* settings, ProcessField sortKey) {
    settings->sortKey = sortKey;
    settings->direction = 1;
-   settings->treeView = false;
    return HTOP_REFRESH | HTOP_SAVE_SETTINGS | HTOP_UPDATE_PANELHDR | HTOP_KEEP_FOLLOWING;
 }
 
@@ -172,19 +173,25 @@ static Htop_Reaction sortBy(State* st) {
       Panel_add(sortPanel, (Object*) ListItem_new(name, fields[i]));
       if (fields[i] == st->settings->sortKey)
          Panel_setSelected(sortPanel, i);
+
       free(name);
    }
-   ListItem* field = (ListItem*) Action_pickFromVector(st, sortPanel, 15);
+   ListItem* field = (ListItem*) Action_pickFromVector(st, sortPanel, 15, false);
    if (field) {
       reaction |= Action_setSortKey(st->settings, field->key);
    }
    Object_delete(sortPanel);
+
+   if (st->pauseProcessUpdate)
+      ProcessList_sort(st->pl);
+
    return reaction | HTOP_REFRESH | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;
 }
 
 // ----------------------------------------
 
 static Htop_Reaction actionResize(State* st) {
+   clear();
    Panel_resize(st->panel, COLS, LINES - (st->panel->y) - 1);
    return HTOP_REDRAW_BAR;
 }
@@ -208,7 +215,6 @@ static Htop_Reaction actionToggleKernelThreads(State* st) {
 
 static Htop_Reaction actionToggleUserlandThreads(State* st) {
    st->settings->hideUserlandThreads = !st->settings->hideUserlandThreads;
-   st->settings->hideThreads = st->settings->hideUserlandThreads;
    return HTOP_RECALCULATE | HTOP_SAVE_SETTINGS;
 }
 
@@ -217,9 +223,17 @@ static Htop_Reaction actionToggleProgramPath(State* st) {
    return HTOP_REFRESH | HTOP_SAVE_SETTINGS;
 }
 
+static Htop_Reaction actionToggleMergedCommand(State* st) {
+   st->settings->showMergedCommand = !st->settings->showMergedCommand;
+   return HTOP_REFRESH | HTOP_SAVE_SETTINGS;
+}
+
 static Htop_Reaction actionToggleTreeView(State* st) {
    st->settings->treeView = !st->settings->treeView;
-   if (st->settings->treeView) st->settings->direction = 1;
+   if (st->settings->treeView) {
+      st->settings->direction = 1;
+   }
+
    ProcessList_expandTree(st->pl);
    return HTOP_REFRESH | HTOP_SAVE_SETTINGS | HTOP_KEEP_FOLLOWING | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;
 }
@@ -232,10 +246,21 @@ static Htop_Reaction actionIncFilter(State* st) {
 }
 
 static Htop_Reaction actionIncSearch(State* st) {
+   IncSet_reset(((MainPanel*)st->panel)->inc, INC_SEARCH);
    IncSet_activate(((MainPanel*)st->panel)->inc, INC_SEARCH, st->panel);
    return HTOP_REFRESH | HTOP_KEEP_FOLLOWING;
 }
 
+static Htop_Reaction actionIncNext(State* st) {
+   IncSet_next(((MainPanel*)st->panel)->inc, INC_SEARCH, st->panel, (IncMode_GetPanelValue) MainPanel_getValue);
+   return HTOP_REFRESH | HTOP_KEEP_FOLLOWING;
+}
+
+static Htop_Reaction actionIncPrev(State* st) {
+   IncSet_prev(((MainPanel*)st->panel)->inc, INC_SEARCH, st->panel, (IncMode_GetPanelValue) MainPanel_getValue);
+   return HTOP_REFRESH | HTOP_KEEP_FOLLOWING;
+}
+
 static Htop_Reaction actionHigherPriority(State* st) {
    bool changed = changePriority((MainPanel*)st->panel, -1);
    return changed ? HTOP_REFRESH : HTOP_OK;
@@ -260,48 +285,64 @@ static Htop_Reaction actionExpandOrCollapse(State* st) {
    return changed ? HTOP_RECALCULATE : HTOP_OK;
 }
 
+static Htop_Reaction actionCollapseIntoParent(State* st) {
+   if (!st->settings->treeView) {
+      return HTOP_OK;
+   }
+   bool changed = collapseIntoParent(st->panel);
+   return changed ? HTOP_RECALCULATE : HTOP_OK;
+}
+
 static Htop_Reaction actionExpandCollapseOrSortColumn(State* st) {
    return st->settings->treeView ? actionExpandOrCollapse(st) : actionSetSortColumn(st);
 }
 
-static Htop_Reaction actionQuit() {
+static Htop_Reaction actionQuit(ATTR_UNUSED State* st) {
    return HTOP_QUIT;
 }
 
 static Htop_Reaction actionSetAffinity(State* st) {
    if (st->pl->cpuCount == 1)
       return HTOP_OK;
-#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
+
+#if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))
    Panel* panel = st->panel;
 
    Process* p = (Process*) Panel_getSelected(panel);
-   if (!p) return HTOP_OK;
-   Affinity* affinity = Affinity_get(p, st->pl);
-   if (!affinity) return HTOP_OK;
-   Panel* affinityPanel = AffinityPanel_new(st->pl, affinity);
-   Affinity_delete(affinity);
+   if (!p)
+      return HTOP_OK;
 
-   void* set = Action_pickFromVector(st, affinityPanel, 15);
+   Affinity* affinity1 = Affinity_get(p, st->pl);
+   if (!affinity1)
+      return HTOP_OK;
+
+   int width;
+   Panel* affinityPanel = AffinityPanel_new(st->pl, affinity1, &width);
+   width += 1; /* we add a gap between the panels */
+   Affinity_delete(affinity1);
+
+   void* set = Action_pickFromVector(st, affinityPanel, width, true);
    if (set) {
-      Affinity* affinity = AffinityPanel_getAffinity(affinityPanel, st->pl);
-      bool ok = MainPanel_foreachProcess((MainPanel*)panel, (MainPanel_ForeachProcessFn) Affinity_set, (size_t) affinity, NULL);
-      if (!ok) beep();
-      Affinity_delete(affinity);
+      Affinity* affinity2 = AffinityPanel_getAffinity(affinityPanel, st->pl);
+      bool ok = MainPanel_foreachProcess((MainPanel*)panel, Affinity_set, (Arg) { .v = affinity2 }, NULL);
+      if (!ok)
+         beep();
+      Affinity_delete(affinity2);
    }
-   Panel_delete((Object*)affinityPanel);
+   Object_delete(affinityPanel);
 #endif
    return HTOP_REFRESH | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;
 }
 
 static Htop_Reaction actionKill(State* st) {
-   Panel* signalsPanel = (Panel*) SignalsPanel_new();
-   ListItem* sgn = (ListItem*) Action_pickFromVector(st, signalsPanel, 15);
+   Panel* signalsPanel = SignalsPanel_new();
+   ListItem* sgn = (ListItem*) Action_pickFromVector(st, signalsPanel, 15, true);
    if (sgn) {
       if (sgn->key != 0) {
          Panel_setHeader(st->panel, "Sending...");
-         Panel_draw(st->panel, true);
+         Panel_draw(st->panel, true, true);
          refresh();
-         MainPanel_foreachProcess((MainPanel*)st->panel, (MainPanel_ForeachProcessFn) Process_sendSignal, (size_t) sgn->key, NULL);
+         MainPanel_foreachProcess((MainPanel*)st->panel, Process_sendSignal, (Arg) { .i = sgn->key }, NULL);
          napms(500);
       }
    }
@@ -316,10 +357,10 @@ static Htop_Reaction actionFilterByUser(State* st) {
    Vector_insertionSort(usersPanel->items);
    ListItem* allUsers = ListItem_new("All users", -1);
    Panel_insert(usersPanel, 0, (Object*) allUsers);
-   ListItem* picked = (ListItem*) Action_pickFromVector(st, usersPanel, 20);
+   ListItem* picked = (ListItem*) Action_pickFromVector(st, usersPanel, 20, false);
    if (picked) {
       if (picked == allUsers) {
-         st->pl->userId = -1;
+         st->pl->userId = (uid_t)-1;
       } else {
          Action_setUserOnly(ListItem_getRef(picked), &(st->pl->userId));
       }
@@ -335,7 +376,7 @@ Htop_Reaction Action_follow(State* st) {
 }
 
 static Htop_Reaction actionSetup(State* st) {
-   Action_runSetup(st->settings, st->header, st->pl);
+   Action_runSetup(st);
    // TODO: shouldn't need this, colors should be dynamic
    int headerHeight = Header_calculateHeight(st->header);
    Panel_move(st->panel, 0, headerHeight);
@@ -345,7 +386,9 @@ static Htop_Reaction actionSetup(State* st) {
 
 static Htop_Reaction actionLsof(State* st) {
    Process* p = (Process*) Panel_getSelected(st->panel);
-   if (!p) return HTOP_OK;
+   if (!p)
+      return HTOP_OK;
+
    OpenFilesScreen* ofs = OpenFilesScreen_new(p);
    InfoScreen_run((InfoScreen*)ofs);
    OpenFilesScreen_delete((Object*)ofs);
@@ -354,9 +397,22 @@ static Htop_Reaction actionLsof(State* st) {
    return HTOP_REFRESH | HTOP_REDRAW_BAR;
 }
 
-static Htop_Reaction actionStrace(State* st) {
+static Htop_Reaction actionShowLocks(State* st) {
    Process* p = (Process*) Panel_getSelected(st->panel);
    if (!p) return HTOP_OK;
+   ProcessLocksScreen* pls = ProcessLocksScreen_new(p);
+   InfoScreen_run((InfoScreen*)pls);
+   ProcessLocksScreen_delete((Object*)pls);
+   clear();
+   CRT_enableDelay();
+   return HTOP_REFRESH | HTOP_REDRAW_BAR;
+}
+
+static Htop_Reaction actionStrace(State* st) {
+   Process* p = (Process*) Panel_getSelected(st->panel);
+   if (!p)
+      return HTOP_OK;
+
    TraceScreen* ts = TraceScreen_new(p);
    bool ok = TraceScreen_forkTracer(ts);
    if (ok) {
@@ -370,24 +426,36 @@ static Htop_Reaction actionStrace(State* st) {
 
 static Htop_Reaction actionTag(State* st) {
    Process* p = (Process*) Panel_getSelected(st->panel);
-   if (!p) return HTOP_OK;
+   if (!p)
+      return HTOP_OK;
+
    Process_toggleTag(p);
    Panel_onKey(st->panel, KEY_DOWN);
    return HTOP_OK;
 }
 
-static Htop_Reaction actionRedraw() {
+static Htop_Reaction actionRedraw(ATTR_UNUSED State* st) {
    clear();
    return HTOP_REFRESH | HTOP_REDRAW_BAR;
 }
 
-static struct { const char* key; const char* info; } helpLeft[] = {
+static Htop_Reaction actionTogglePauseProcessUpdate(State* st) {
+   st->pauseProcessUpdate = !st->pauseProcessUpdate;
+   return HTOP_REFRESH | HTOP_REDRAW_BAR;
+}
+
+static const struct {
+   const char* key;
+   const char* info;
+} helpLeft[] = {
    { .key = " Arrows: ", .info = "scroll process list" },
    { .key = " Digits: ", .info = "incremental PID search" },
    { .key = "   F3 /: ", .info = "incremental name search" },
    { .key = "   F4 \\: ",.info = "incremental name filtering" },
    { .key = "   F5 t: ", .info = "tree view" },
    { .key = "      p: ", .info = "toggle program path" },
+   { .key = "      m: ", .info = "toggle merged command" },
+   { .key = "      Z: ", .info = "pause/resume process updates" },
    { .key = "      u: ", .info = "show processes of a single user" },
    { .key = "      H: ", .info = "hide/show user process threads" },
    { .key = "      K: ", .info = "hide/show kernel threads" },
@@ -395,31 +463,40 @@ static struct { const char* key; const char* info; } helpLeft[] = {
    { .key = " F6 + -: ", .info = "expand/collapse tree" },
    { .key = "  P M T: ", .info = "sort by CPU%, MEM% or TIME" },
    { .key = "      I: ", .info = "invert sort order" },
-   { .key = "   F6 >: ", .info = "select sort column" },
+   { .key = " F6 > .: ", .info = "select sort column" },
    { .key = NULL, .info = NULL }
 };
 
-static struct { const char* key; const char* info; } helpRight[] = {
+static const struct {
+   const char* key;
+   const char* info;
+} helpRight[] = {
    { .key = "  Space: ", .info = "tag process" },
    { .key = "      c: ", .info = "tag process and its children" },
    { .key = "      U: ", .info = "untag all processes" },
    { .key = "   F9 k: ", .info = "kill process/tagged processes" },
    { .key = "   F7 ]: ", .info = "higher priority (root only)" },
    { .key = "   F8 [: ", .info = "lower priority (+ nice)" },
-#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
+#if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))
    { .key = "      a: ", .info = "set CPU affinity" },
 #endif
    { .key = "      e: ", .info = "show process environment" },
    { .key = "      i: ", .info = "set IO priority" },
    { .key = "      l: ", .info = "list open files with lsof" },
+   { .key = "      x: ", .info = "list file locks of process" },
    { .key = "      s: ", .info = "trace syscalls with strace" },
-   { .key = "         ", .info = "" },
-   { .key = "   F2 S: ", .info = "setup" },
+   { .key = "      w: ", .info = "wrap process command in multiple lines" },
+   { .key = " F2 C S: ", .info = "setup" },
    { .key = "   F1 h: ", .info = "show this help screen" },
    { .key = "  F10 q: ", .info = "quit" },
    { .key = NULL, .info = NULL }
 };
 
+static inline void addattrstr( int attr, const char* str) {
+   attrset(attr);
+   addstr(str);
+}
+
 static Htop_Reaction actionHelp(State* st) {
    Settings* settings = st->settings;
 
@@ -429,17 +506,20 @@ static Htop_Reaction actionHelp(State* st) {
    for (int i = 0; i < LINES - 1; i++)
       mvhline(i, 0, ' ', COLS);
 
-   mvaddstr(0, 0, "htop " VERSION " - " COPYRIGHT);
-   mvaddstr(1, 0, "Released under the GNU GPL. See 'man' page for more info.");
+   int line = 0;
+
+   mvaddstr(line++, 0, "htop " VERSION " - " COPYRIGHT);
+   mvaddstr(line++, 0, "Released under the GNU GPLv2. See 'man' page for more info.");
 
    attrset(CRT_colors[DEFAULT_COLOR]);
-   mvaddstr(3, 0, "CPU usage bar: ");
-   #define addattrstr(a,s) attrset(a);addstr(s)
+   line++;
+   mvaddstr(line++, 0, "CPU usage bar: ");
+
    addattrstr(CRT_colors[BAR_BORDER], "[");
    if (settings->detailedCPUTime) {
       addattrstr(CRT_colors[CPU_NICE_TEXT], "low"); addstr("/");
       addattrstr(CRT_colors[CPU_NORMAL], "normal"); addstr("/");
-      addattrstr(CRT_colors[CPU_KERNEL], "kernel"); addstr("/");
+      addattrstr(CRT_colors[CPU_SYSTEM], "kernel"); addstr("/");
       addattrstr(CRT_colors[CPU_IRQ], "irq"); addstr("/");
       addattrstr(CRT_colors[CPU_SOFTIRQ], "soft-irq"); addstr("/");
       addattrstr(CRT_colors[CPU_STEAL], "steal"); addstr("/");
@@ -449,13 +529,13 @@ static Htop_Reaction actionHelp(State* st) {
    } else {
       addattrstr(CRT_colors[CPU_NICE_TEXT], "low-priority"); addstr("/");
       addattrstr(CRT_colors[CPU_NORMAL], "normal"); addstr("/");
-      addattrstr(CRT_colors[CPU_KERNEL], "kernel"); addstr("/");
-      addattrstr(CRT_colors[CPU_STEAL], "virtualiz");
+      addattrstr(CRT_colors[CPU_SYSTEM], "kernel"); addstr("/");
+      addattrstr(CRT_colors[CPU_GUEST], "virtualiz");
       addattrstr(CRT_colors[BAR_SHADOW], "               used%");
    }
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
-   mvaddstr(4, 0, "Memory bar:    ");
+   mvaddstr(line++, 0, "Memory bar:    ");
    addattrstr(CRT_colors[BAR_BORDER], "[");
    addattrstr(CRT_colors[MEMORY_USED], "used"); addstr("/");
    addattrstr(CRT_colors[MEMORY_BUFFERS_TEXT], "buffers"); addstr("/");
@@ -463,29 +543,49 @@ static Htop_Reaction actionHelp(State* st) {
    addattrstr(CRT_colors[BAR_SHADOW], "                            used/total");
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
-   mvaddstr(5, 0, "Swap bar:      ");
+   mvaddstr(line++, 0, "Swap bar:      ");
    addattrstr(CRT_colors[BAR_BORDER], "[");
    addattrstr(CRT_colors[SWAP], "used");
    addattrstr(CRT_colors[BAR_SHADOW], "                                          used/total");
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
-   mvaddstr(6,0, "Type and layout of header meters are configurable in the setup screen.");
+   mvaddstr(line++, 0, "Type and layout of header meters are configurable in the setup screen.");
    if (CRT_colorScheme == COLORSCHEME_MONOCHROME) {
-      mvaddstr(7, 0, "In monochrome, meters display as different chars, in order: |#*@$%&.");
+      mvaddstr(line, 0, "In monochrome, meters display as different chars, in order: |#*@$%&.");
    }
-   mvaddstr( 8, 0, " Status: R: running; S: sleeping; T: traced/stopped; Z: zombie; D: disk sleep");
-   for (int i = 0; helpLeft[i].info; i++) { mvaddstr(9+i, 9,  helpLeft[i].info); }
-   for (int i = 0; helpRight[i].info; i++) { mvaddstr(9+i, 49, helpRight[i].info); }
-   attrset(CRT_colors[HELP_BOLD]);
-   for (int i = 0; helpLeft[i].key;  i++) { mvaddstr(9+i, 0,  helpLeft[i].key); }
-   for (int i = 0; helpRight[i].key; i++) { mvaddstr(9+i, 40, helpRight[i].key); }
-   attrset(CRT_colors[PROCESS_THREAD]);
-   mvaddstr(16, 32, "threads");
-   mvaddstr(17, 26, "threads");
+   line++;
+
+   mvaddstr(line++, 0, "Process state: R: running; S: sleeping; T: traced/stopped; Z: zombie; D: disk sleep");
+
+   line++;
+
+   int item;
+   for (item = 0; helpLeft[item].key; item++) {
       attrset(CRT_colors[DEFAULT_COLOR]);
+      mvaddstr(line + item, 9,  helpLeft[item].info);
+      attrset(CRT_colors[HELP_BOLD]);
+      mvaddstr(line + item, 0,  helpLeft[item].key);
+      if (String_eq(helpLeft[item].key, "      H: ")) {
+         attrset(CRT_colors[PROCESS_THREAD]);
+         mvaddstr(line + item, 32, "threads");
+      } else if (String_eq(helpLeft[item].key, "      K: ")) {
+         attrset(CRT_colors[PROCESS_THREAD]);
+         mvaddstr(line + item, 26, "threads");
+      }
+   }
+   int leftHelpItems = item;
+
+   for (item = 0; helpRight[item].key; item++) {
+      attrset(CRT_colors[HELP_BOLD]);
+      mvaddstr(line + item, 40, helpRight[item].key);
+      attrset(CRT_colors[DEFAULT_COLOR]);
+      mvaddstr(line + item, 49, helpRight[item].info);
+   }
+   line += MAXIMUM(leftHelpItems, item);
+   line++;
 
    attrset(CRT_colors[HELP_BOLD]);
-   mvaddstr(23,0, "Press any key to return.");
+   mvaddstr(line++, 0, "Press any key to return.");
    attrset(CRT_colors[DEFAULT_COLOR]);
    refresh();
    CRT_readKey();
@@ -504,14 +604,18 @@ static Htop_Reaction actionUntagAll(State* st) {
 
 static Htop_Reaction actionTagAllChildren(State* st) {
    Process* p = (Process*) Panel_getSelected(st->panel);
-   if (!p) return HTOP_OK;
+   if (!p)
+      return HTOP_OK;
+
    tagAllChildren(st->panel, p);
    return HTOP_OK;
 }
 
 static Htop_Reaction actionShowEnvScreen(State* st) {
    Process* p = (Process*) Panel_getSelected(st->panel);
-   if (!p) return HTOP_OK;
+   if (!p)
+      return HTOP_OK;
+
    EnvScreen* es = EnvScreen_new(p);
    InfoScreen_run((InfoScreen*)es);
    EnvScreen_delete((Object*)es);
@@ -520,6 +624,18 @@ static Htop_Reaction actionShowEnvScreen(State* st) {
    return HTOP_REFRESH | HTOP_REDRAW_BAR;
 }
 
+static Htop_Reaction actionShowCommandScreen(State* st) {
+   Process* p = (Process*) Panel_getSelected(st->panel);
+   if (!p)
+      return HTOP_OK;
+
+   CommandScreen* cmdScr = CommandScreen_new(p);
+   InfoScreen_run((InfoScreen*)cmdScr);
+   CommandScreen_delete((Object*)cmdScr);
+   clear();
+   CRT_enableDelay();
+   return HTOP_REFRESH | HTOP_REDRAW_BAR;
+}
 
 void Action_setBindings(Htop_Action* keys) {
    keys[KEY_RESIZE] = actionResize;
@@ -529,19 +645,22 @@ void Action_setBindings(Htop_Action* keys) {
    keys['H'] = actionToggleUserlandThreads;
    keys['K'] = actionToggleKernelThreads;
    keys['p'] = actionToggleProgramPath;
+   keys['m'] = actionToggleMergedCommand;
    keys['t'] = actionToggleTreeView;
    keys[KEY_F(5)] = actionToggleTreeView;
    keys[KEY_F(4)] = actionIncFilter;
    keys['\\'] = actionIncFilter;
    keys[KEY_F(3)] = actionIncSearch;
    keys['/'] = actionIncSearch;
+   keys['n'] = actionIncNext;
+   keys['N'] = actionIncPrev;
 
    keys[']'] = actionHigherPriority;
    keys[KEY_F(7)] = actionHigherPriority;
    keys['['] = actionLowerPriority;
    keys[KEY_F(8)] = actionLowerPriority;
    keys['I'] = actionInvertSortOrder;
-   keys[KEY_F(6)] = actionExpandCollapseOrSortColumn;
+   keys[KEY_F(6)] = actionSetSortColumn;
    keys[KEY_F(18)] = actionExpandCollapseOrSortColumn;
    keys['<'] = actionSetSortColumn;
    keys[','] = actionSetSortColumn;
@@ -556,11 +675,13 @@ void Action_setBindings(Htop_Action* keys) {
    keys['+'] = actionExpandOrCollapse;
    keys['='] = actionExpandOrCollapse;
    keys['-'] = actionExpandOrCollapse;
+   keys['\177'] = actionCollapseIntoParent;
    keys['u'] = actionFilterByUser;
    keys['F'] = Action_follow;
    keys['S'] = actionSetup;
    keys['C'] = actionSetup;
    keys[KEY_F(2)] = actionSetup;
+   keys['x'] = actionShowLocks;
    keys['l'] = actionLsof;
    keys['s'] = actionStrace;
    keys[' '] = actionTag;
@@ -571,5 +692,6 @@ void Action_setBindings(Htop_Action* keys) {
    keys['U'] = actionUntagAll;
    keys['c'] = actionTagAllChildren;
    keys['e'] = actionShowEnvScreen;
+   keys['w'] = actionShowCommandScreen;
+   keys['Z'] = actionTogglePauseProcessUpdate;
 }
-

Action.h

@@ -1,21 +1,24 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Action
 #define HEADER_Action
 /*
 htop - Action.h
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
+#include <stdbool.h>
+#include <sys/types.h>
 
-#include "IncSet.h"
-#include "Settings.h"
 #include "Header.h"
-#include "UsersTable.h"
-#include "ProcessList.h"
+#include "Object.h"
 #include "Panel.h"
+#include "Process.h"
+#include "ProcessList.h"
+#include "Settings.h"
+#include "UsersTable.h"
 
 typedef enum {
    HTOP_OK = 0x00,
@@ -28,31 +31,26 @@ typedef enum {
    HTOP_UPDATE_PANELHDR = 0x41, // implies HTOP_REFRESH
 } Htop_Reaction;
 
-typedef Htop_Reaction (*Htop_Action)();
-
 typedef struct State_ {
    Settings* settings;
    UsersTable* ut;
    ProcessList* pl;
    Panel* panel;
    Header* header;
+   bool pauseProcessUpdate;
+   bool hideProcessSelection;
 } State;
 
+typedef Htop_Reaction (*Htop_Action)(State* st);
 
-Object* Action_pickFromVector(State* st, Panel* list, int x);
-
-// ----------------------------------------
+Object* Action_pickFromVector(State* st, Panel* list, int x, bool followProcess);
 
 bool Action_setUserOnly(const char* userName, uid_t* userId);
 
 Htop_Reaction Action_setSortKey(Settings* settings, ProcessField sortKey);
 
-// ----------------------------------------
-
 Htop_Reaction Action_follow(State* st);
 
-
 void Action_setBindings(Htop_Action* keys);
 
-
 #endif

Affinity.c

@@ -1,37 +1,31 @@
 /*
 htop - Affinity.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "Affinity.h"
 
 #include <stdlib.h>
 
+#include "XUtils.h"
+
 #ifdef HAVE_LIBHWLOC
 #include <hwloc.h>
-#if __linux__
+#include <hwloc/bitmap.h>
+#ifdef __linux__
 #define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_THREAD
 #else
 #define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_PROCESS
 #endif
-#elif HAVE_LINUX_AFFINITY
+#elif defined(HAVE_LINUX_AFFINITY)
 #include <sched.h>
 #endif
 
-/*{
-#include "Process.h"
-#include "ProcessList.h"
-
-typedef struct Affinity_ {
-   ProcessList* pl;
-   int size;
-   int used;
-   int* cpus;
-} Affinity;
-
-}*/
 
 Affinity* Affinity_new(ProcessList* pl) {
    Affinity* this = xCalloc(1, sizeof(Affinity));
@@ -79,7 +73,8 @@ Affinity* Affinity_get(Process* proc, ProcessList* pl) {
    return affinity;
 }
 
-bool Affinity_set(Process* proc, Affinity* this) {
+bool Affinity_set(Process* proc, Arg arg) {
+   Affinity* this = arg.v;
    hwloc_cpuset_t cpuset = hwloc_bitmap_alloc();
    for (int i = 0; i < this->used; i++) {
       hwloc_bitmap_set(cpuset, this->cpus[i]);
@@ -89,21 +84,25 @@ bool Affinity_set(Process* proc, Affinity* this) {
    return ok;
 }
 
-#elif HAVE_LINUX_AFFINITY
+#elif defined(HAVE_LINUX_AFFINITY)
 
 Affinity* Affinity_get(Process* proc, ProcessList* pl) {
    cpu_set_t cpuset;
    bool ok = (sched_getaffinity(proc->pid, sizeof(cpu_set_t), &cpuset) == 0);
-   if (!ok) return NULL;
+   if (!ok)
+      return NULL;
+
    Affinity* affinity = Affinity_new(pl);
    for (int i = 0; i < pl->cpuCount; i++) {
-      if (CPU_ISSET(i, &cpuset))
+      if (CPU_ISSET(i, &cpuset)) {
          Affinity_add(affinity, i);
       }
+   }
    return affinity;
 }
 
-bool Affinity_set(Process* proc, Affinity* this) {
+bool Affinity_set(Process* proc, Arg arg) {
+   Affinity* this = arg.v;
    cpu_set_t cpuset;
    CPU_ZERO(&cpuset);
    for (int i = 0; i < this->used; i++) {

Affinity.h

@@ -1,25 +1,29 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Affinity
 #define HEADER_Affinity
 /*
 htop - Affinity.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#ifdef HAVE_LIBHWLOC
-#if __linux__
-#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_THREAD
-#else
-#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_PROCESS
-#endif
-#elif HAVE_LINUX_AFFINITY
+#include "config.h" // IWYU pragma: keep
+
+#include "ProcessList.h"
+
+#if defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY)
+#include <stdbool.h>
+
+#include "Object.h"
+#include "Process.h"
+#endif
+
+
+#if defined(HAVE_LIBHWLOC) && defined(HAVE_LINUX_AFFINITY)
+#error hwloc and linux affinity are mutual exclusive.
 #endif
 
-#include "Process.h"
-#include "ProcessList.h"
 
 typedef struct Affinity_ {
    ProcessList* pl;
@@ -28,25 +32,18 @@ typedef struct Affinity_ {
    int* cpus;
 } Affinity;
 
-
 Affinity* Affinity_new(ProcessList* pl);
 
 void Affinity_delete(Affinity* this);
 
 void Affinity_add(Affinity* this, int id);
 
-#ifdef HAVE_LIBHWLOC
+#if defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY)
 
 Affinity* Affinity_get(Process* proc, ProcessList* pl);
 
-bool Affinity_set(Process* proc, Affinity* this);
+bool Affinity_set(Process* proc, Arg arg);
 
-#elif HAVE_LINUX_AFFINITY
-
-Affinity* Affinity_get(Process* proc, ProcessList* pl);
-
-bool Affinity_set(Process* proc, Affinity* this);
-
-#endif
+#endif /* HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY */
 
 #endif

AffinityPanel.c

@@ -1,76 +1,440 @@
 /*
 htop - AffinityPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "AffinityPanel.h"
-#include "CRT.h"
+#include "config.h" // IWYU pragma: keep
 
-#include "CheckItem.h"
+#include "AffinityPanel.h"
 
 #include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
 #include <string.h>
 
-/*{
-#include "Panel.h"
-#include "Affinity.h"
-#include "ProcessList.h"
-#include "ListItem.h"
-}*/
+#include "CRT.h"
+#include "FunctionBar.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "RichString.h"
+#include "Settings.h"
+#include "Vector.h"
+#include "XUtils.h"
+
+#ifdef HAVE_LIBHWLOC
+#include <hwloc.h>
+#include <hwloc/bitmap.h>
+#endif
+
+
+typedef struct MaskItem_ {
+   Object super;
+   char* text;
+   char* indent; /* used also as an condition whether this is a tree node */
+   int value; /* tri-state: 0 - off, 1 - some set, 2 - all set */
+   int sub_tree; /* tri-state: 0 - no sub-tree, 1 - open sub-tree, 2 - closed sub-tree */
+   Vector* children;
+   #ifdef HAVE_LIBHWLOC
+   bool ownCpuset;
+   hwloc_bitmap_t cpuset;
+   #else
+   int cpu;
+   #endif
+} MaskItem;
+
+static void MaskItem_delete(Object* cast) {
+   MaskItem* this = (MaskItem*) cast;
+   free(this->text);
+   free(this->indent);
+   Vector_delete(this->children);
+   #ifdef HAVE_LIBHWLOC
+   if (this->ownCpuset)
+      hwloc_bitmap_free(this->cpuset);
+   #endif
+   free(this);
+}
+
+static void MaskItem_display(const Object* cast, RichString* out) {
+   const MaskItem* this = (const MaskItem*)cast;
+   assert (this != NULL);
+   RichString_append(out, CRT_colors[CHECK_BOX], "[");
+   if (this->value == 2) {
+      RichString_append(out, CRT_colors[CHECK_MARK], "x");
+   } else if (this->value == 1) {
+      RichString_append(out, CRT_colors[CHECK_MARK], "o");
+   } else {
+      RichString_append(out, CRT_colors[CHECK_MARK], " ");
+   }
+   RichString_append(out, CRT_colors[CHECK_BOX], "]");
+   RichString_append(out, CRT_colors[CHECK_TEXT], " ");
+   if (this->indent) {
+      RichString_append(out, CRT_colors[PROCESS_TREE], this->indent);
+      RichString_append(out, CRT_colors[PROCESS_TREE],
+                        this->sub_tree == 2
+                        ? CRT_treeStr[TREE_STR_OPEN]
+                        : CRT_treeStr[TREE_STR_SHUT]);
+      RichString_append(out, CRT_colors[CHECK_TEXT], " ");
+   }
+   RichString_append(out, CRT_colors[CHECK_TEXT], this->text);
+}
+
+static const ObjectClass MaskItem_class = {
+   .display = MaskItem_display,
+   .delete  = MaskItem_delete
+};
+
+#ifdef HAVE_LIBHWLOC
+
+static MaskItem* MaskItem_newMask(const char* text, const char* indent, hwloc_bitmap_t cpuset, bool owner) {
+   MaskItem* this = AllocThis(MaskItem);
+   this->text = xStrdup(text);
+   this->indent = xStrdup(indent); /* nonnull for tree node */
+   this->value = 0;
+   this->ownCpuset = owner;
+   this->cpuset = cpuset;
+   this->sub_tree = hwloc_bitmap_weight(cpuset) > 1 ? 1 : 0;
+   this->children = Vector_new(Class(MaskItem), true, DEFAULT_SIZE);
+   return this;
+}
+
+#endif
+
+static MaskItem* MaskItem_newSingleton(const char* text, int cpu, bool isSet) {
+   MaskItem* this = AllocThis(MaskItem);
+   this->text = xStrdup(text);
+   this->indent = NULL; /* not a tree node */
+   this->sub_tree = 0;
+   this->children = Vector_new(Class(MaskItem), true, DEFAULT_SIZE);
+
+   #ifdef HAVE_LIBHWLOC
+   this->ownCpuset = true;
+   this->cpuset = hwloc_bitmap_alloc();
+   hwloc_bitmap_set(this->cpuset, cpu);
+   #else
+   this->cpu = cpu;
+   #endif
+   this->value = isSet ? 2 : 0;
+
+   return this;
+}
+
+typedef struct AffinityPanel_ {
+   Panel super;
+   ProcessList* pl;
+   bool topoView;
+   Vector* cpuids;
+   unsigned width;
+
+   #ifdef HAVE_LIBHWLOC
+   MaskItem* topoRoot;
+   hwloc_const_cpuset_t allCpuset;
+   hwloc_bitmap_t workCpuset;
+   #endif
+} AffinityPanel;
+
+static void AffinityPanel_delete(Object* cast) {
+   AffinityPanel* this = (AffinityPanel*) cast;
+   Panel* super = (Panel*) this;
+   Panel_done(super);
+   Vector_delete(this->cpuids);
+   #ifdef HAVE_LIBHWLOC
+   hwloc_bitmap_free(this->workCpuset);
+   MaskItem_delete((Object*) this->topoRoot);
+   #endif
+   free(this);
+}
+
+#ifdef HAVE_LIBHWLOC
+
+static void AffinityPanel_updateItem(AffinityPanel* this, MaskItem* item) {
+   Panel* super = (Panel*) this;
+
+   item->value = hwloc_bitmap_isincluded(item->cpuset, this->workCpuset) ? 2 :
+                 hwloc_bitmap_intersects(item->cpuset, this->workCpuset) ? 1 : 0;
+
+   Panel_add(super, (Object*) item);
+}
+
+static void AffinityPanel_updateTopo(AffinityPanel* this, MaskItem* item) {
+   AffinityPanel_updateItem(this, item);
+
+   if (item->sub_tree == 2)
+      return;
+
+   for (int i = 0; i < Vector_size(item->children); i++)
+      AffinityPanel_updateTopo(this, (MaskItem*) Vector_get(item->children, i));
+}
+
+#endif
+
+static void AffinityPanel_update(AffinityPanel* this, bool keepSelected) {
+   Panel* super = (Panel*) this;
+
+   FunctionBar_setLabel(super->currentBar, KEY_F(3), this->topoView ? "Collapse/Expand" : "");
+   FunctionBar_draw(super->currentBar);
+
+   int oldSelected = Panel_getSelectedIndex(super);
+   Panel_prune(super);
+
+   #ifdef HAVE_LIBHWLOC
+   if (this->topoView) {
+      AffinityPanel_updateTopo(this, this->topoRoot);
+   } else {
+      for (int i = 0; i < Vector_size(this->cpuids); i++) {
+         AffinityPanel_updateItem(this, (MaskItem*) Vector_get(this->cpuids, i));
+      }
+   }
+   #else
+   Panel_splice(super, this->cpuids);
+   #endif
+
+   if (keepSelected)
+      Panel_setSelected(super, oldSelected);
+
+   super->needsRedraw = true;
+}
+
+static HandlerResult AffinityPanel_eventHandler(Panel* super, int ch) {
+   AffinityPanel* this = (AffinityPanel*) super;
+   HandlerResult result = IGNORED;
+   MaskItem* selected = (MaskItem*) Panel_getSelected(super);
+   bool keepSelected = true;
 
-static HandlerResult AffinityPanel_eventHandler(Panel* this, int ch) {
-   CheckItem* selected = (CheckItem*) Panel_getSelected(this);
    switch(ch) {
    case KEY_MOUSE:
    case KEY_RECLICK:
    case ' ':
-      CheckItem_set(selected, ! (CheckItem_get(selected)) );
-      return HANDLED;
+      #ifdef HAVE_LIBHWLOC
+      if (selected->value == 2) {
+         /* Item was selected, so remove this mask from the top cpuset. */
+         hwloc_bitmap_andnot(this->workCpuset, this->workCpuset, selected->cpuset);
+         selected->value = 0;
+      } else {
+         /* Item was not or only partial selected, so set all bits from this object
+            in the top cpuset. */
+         hwloc_bitmap_or(this->workCpuset, this->workCpuset, selected->cpuset);
+         selected->value = 2;
+      }
+      #else
+      selected->value = selected->value ? 0 : 2; /* toggle between 0 and 2 */
+      #endif
+
+      result = HANDLED;
+      break;
+
+   #ifdef HAVE_LIBHWLOC
+
+   case KEY_F(1):
+      hwloc_bitmap_copy(this->workCpuset, this->allCpuset);
+      result = HANDLED;
+      break;
+
+   case KEY_F(2):
+      this->topoView = !this->topoView;
+      keepSelected = false;
+
+      result = HANDLED;
+      break;
+
+   case KEY_F(3):
+   case '-':
+   case '+':
+      if (selected->sub_tree)
+         selected->sub_tree = 1 + !(selected->sub_tree - 1); /* toggle between 1 and 2 */
+
+      result = HANDLED;
+      break;
+
+   #endif
+
    case 0x0a:
    case 0x0d:
    case KEY_ENTER:
-      return BREAK_LOOP;
-   }
-   return IGNORED;
+      result = BREAK_LOOP;
+      break;
    }
 
-PanelClass AffinityPanel_class = {
+   if (HANDLED == result)
+      AffinityPanel_update(this, keepSelected);
+
+   return result;
+}
+
+#ifdef HAVE_LIBHWLOC
+
+static MaskItem* AffinityPanel_addObject(AffinityPanel* this, hwloc_obj_t obj, unsigned indent, MaskItem* parent) {
+   const char* type_name = hwloc_obj_type_string(obj->type);
+   const char* index_prefix = "#";
+   unsigned depth = obj->depth;
+   unsigned index = obj->logical_index;
+   size_t off = 0, left = 10 * depth;
+   char buf[64], indent_buf[left + 1];
+
+   if (obj->type == HWLOC_OBJ_PU) {
+      index = Settings_cpuId(this->pl->settings, obj->os_index);
+      type_name = "CPU";
+      index_prefix = "";
+   }
+
+   indent_buf[0] = '\0';
+   if (depth > 0) {
+      for (unsigned i = 1; i < depth; i++) {
+         xSnprintf(&indent_buf[off], left, "%s  ", (indent & (1u << i)) ? CRT_treeStr[TREE_STR_VERT] : " ");
+         size_t len = strlen(&indent_buf[off]);
+         off += len;
+         left -= len;
+      }
+      xSnprintf(&indent_buf[off], left, "%s",
+                obj->next_sibling ? CRT_treeStr[TREE_STR_RTEE] : CRT_treeStr[TREE_STR_BEND]);
+      // Uncomment when further appending to indent_buf
+      //size_t len = strlen(&indent_buf[off]);
+      //off += len;
+      //left -= len;
+   }
+
+   xSnprintf(buf, sizeof(buf), "%s %s%u", type_name, index_prefix, index);
+
+   MaskItem* item = MaskItem_newMask(buf, indent_buf, obj->complete_cpuset, false);
+   if (parent)
+      Vector_add(parent->children, item);
+
+   if (item->sub_tree && parent && parent->sub_tree == 1) {
+      /* if obj is fully included or fully excluded, collapse the item */
+      hwloc_bitmap_t result = hwloc_bitmap_alloc();
+      hwloc_bitmap_and(result, obj->complete_cpuset, this->workCpuset);
+      int weight = hwloc_bitmap_weight(result);
+      hwloc_bitmap_free(result);
+      if (weight == 0 || weight == (hwloc_bitmap_weight(this->workCpuset) + hwloc_bitmap_weight(obj->complete_cpuset))) {
+         item->sub_tree = 2;
+      }
+   }
+
+   /* "[x] " + "|- " * depth + ("- ")?(if root node) + name */
+   unsigned width = 4 + 3 * depth + (2 * !depth) + strlen(buf);
+   if (width > this->width) {
+      this->width = width;
+   }
+
+   return item;
+}
+
+static MaskItem* AffinityPanel_buildTopology(AffinityPanel* this, hwloc_obj_t obj, unsigned indent, MaskItem* parent) {
+   MaskItem* item = AffinityPanel_addObject(this, obj, indent, parent);
+   if (obj->next_sibling) {
+      indent |= (1u << obj->depth);
+   } else {
+      indent &= ~(1u << obj->depth);
+   }
+
+   for (unsigned i = 0; i < obj->arity; i++) {
+      AffinityPanel_buildTopology(this, obj->children[i], indent, item);
+   }
+
+   return parent == NULL ? item : NULL;
+}
+
+#endif
+
+const PanelClass AffinityPanel_class = {
    .super = {
       .extends = Class(Panel),
-      .delete = Panel_delete
+      .delete = AffinityPanel_delete
    },
    .eventHandler = AffinityPanel_eventHandler
 };
 
-Panel* AffinityPanel_new(ProcessList* pl, Affinity* affinity) {
-   Panel* this = Panel_new(1, 1, 1, 1, true, Class(CheckItem), FunctionBar_newEnterEsc("Set    ", "Cancel "));
-   Object_setClass(this, Class(AffinityPanel));
+static const char* const AffinityPanelFunctions[] = {
+   "Set    ",
+   "Cancel ",
+   #ifdef HAVE_LIBHWLOC
+   "All",
+   "Topology",
+   "               ",
+   #endif
+   NULL
+};
+static const char* const AffinityPanelKeys[] = {"Enter", "Esc", "F1", "F2", "F3"};
+static const int AffinityPanelEvents[] = {13, 27, KEY_F(1), KEY_F(2), KEY_F(3)};
+
+Panel* AffinityPanel_new(ProcessList* pl, Affinity* affinity, int* width) {
+   AffinityPanel* this = AllocThis(AffinityPanel);
+   Panel* super = (Panel*) this;
+   Panel_init(super, 1, 1, 1, 1, Class(MaskItem), false, FunctionBar_new(AffinityPanelFunctions, AffinityPanelKeys, AffinityPanelEvents));
+
+   this->pl = pl;
+   /* defaults to 15, this also includes the gap between the panels,
+    * but this will be added by the caller */
+   this->width = 14;
+
+   this->cpuids   = Vector_new(Class(MaskItem), true, DEFAULT_SIZE);
+
+   #ifdef HAVE_LIBHWLOC
+   this->topoView = pl->settings->topologyAffinity;
+   #else
+   this->topoView = false;
+   #endif
+
+   #ifdef HAVE_LIBHWLOC
+   this->allCpuset  = hwloc_topology_get_complete_cpuset(pl->topology);
+   this->workCpuset = hwloc_bitmap_alloc();
+   #endif
+
+   Panel_setHeader(super, "Use CPUs:");
 
-   Panel_setHeader(this, "Use CPUs:");
    int curCpu = 0;
    for (int i = 0; i < pl->cpuCount; i++) {
-      char number[10];
-      snprintf(number, 9, "%d", Settings_cpuId(pl->settings, i));
-      bool mode;
-      if (curCpu < affinity->used && affinity->cpus[curCpu] == i) {
-         mode = true;
-         curCpu++;
-      } else {
-         mode = false;
-      }
-      Panel_add(this, (Object*) CheckItem_newByVal(xStrdup(number), mode));
-   }
-   return this;
+      char number[16];
+      xSnprintf(number, 9, "CPU %d", Settings_cpuId(pl->settings, i));
+      unsigned cpu_width = 4 + strlen(number);
+      if (cpu_width > this->width) {
+         this->width = cpu_width;
       }
 
-Affinity* AffinityPanel_getAffinity(Panel* this, ProcessList* pl) {
-   Affinity* affinity = Affinity_new(pl);
-   int size = Panel_size(this);
-   for (int i = 0; i < size; i++) {
-      if (CheckItem_get((CheckItem*)Panel_get(this, i)))
-         Affinity_add(affinity, i);
+      bool isSet = false;
+      if (curCpu < affinity->used && affinity->cpus[curCpu] == i) {
+         #ifdef HAVE_LIBHWLOC
+         hwloc_bitmap_set(this->workCpuset, i);
+         #endif
+         isSet = true;
+         curCpu++;
       }
+
+      MaskItem* cpuItem = MaskItem_newSingleton(number, i, isSet);
+      Vector_add(this->cpuids, (Object*) cpuItem);
+   }
+
+   #ifdef HAVE_LIBHWLOC
+   this->topoRoot = AffinityPanel_buildTopology(this, hwloc_get_root_obj(pl->topology), 0, NULL);
+   #endif
+
+   if (width) {
+      *width = this->width;
+   }
+
+   AffinityPanel_update(this, false);
+
+   return super;
+}
+
+Affinity* AffinityPanel_getAffinity(Panel* super, ProcessList* pl) {
+   AffinityPanel* this = (AffinityPanel*) super;
+   Affinity* affinity = Affinity_new(pl);
+
+   #ifdef HAVE_LIBHWLOC
+   int i;
+   hwloc_bitmap_foreach_begin(i, this->workCpuset)
+   Affinity_add(affinity, i);
+   hwloc_bitmap_foreach_end();
+   #else
+   for (int i = 0; i < this->pl->cpuCount; i++) {
+      MaskItem* item = (MaskItem*)Vector_get(this->cpuids, i);
+      if (item->value) {
+         Affinity_add(affinity, item->cpu);
+      }
+   }
+   #endif
+
    return affinity;
 }

AffinityPanel.h

@@ -1,23 +1,20 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_AffinityPanel
 #define HEADER_AffinityPanel
 /*
 htop - AffinityPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Panel.h"
 #include "Affinity.h"
 #include "ProcessList.h"
-#include "ListItem.h"
 
-extern PanelClass AffinityPanel_class;
+extern const PanelClass AffinityPanel_class;
 
-Panel* AffinityPanel_new(ProcessList* pl, Affinity* affinity);
+Panel* AffinityPanel_new(ProcessList* pl, Affinity* affinity, int* width);
 
-Affinity* AffinityPanel_getAffinity(Panel* this, ProcessList* pl);
+Affinity* AffinityPanel_getAffinity(Panel* super, ProcessList* pl);
 
 #endif

AvailableColumnsPanel.c

@@ -1,32 +1,27 @@
 /*
 htop - AvailableColumnsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "AvailableColumnsPanel.h"
-#include "Platform.h"
 
-#include "Header.h"
-#include "ColumnsPanel.h"
-
-#include <assert.h>
-#include <stdlib.h>
 #include <ctype.h>
-#include <string.h>
+#include <stdbool.h>
+#include <stdlib.h>
 
-/*{
-#include "Panel.h"
+#include "ColumnsPanel.h"
+#include "FunctionBar.h"
+#include "ListItem.h"
+#include "Object.h"
+#include "Platform.h"
+#include "Process.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef struct AvailableColumnsPanel_ {
-   Panel super;
-   Panel* columns;
-} AvailableColumnsPanel;
 
-}*/
-
-static const char* AvailableColumnsFunctions[] = {"      ", "      ", "      ", "      ", "Add   ", "      ", "      ", "      ", "      ", "Done  ", NULL};
+static const char* const AvailableColumnsFunctions[] = {"      ", "      ", "      ", "      ", "Add   ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
 static void AvailableColumnsPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
@@ -37,7 +32,6 @@ static void AvailableColumnsPanel_delete(Object* object) {
 
 static HandlerResult AvailableColumnsPanel_eventHandler(Panel* super, int ch) {
    AvailableColumnsPanel* this = (AvailableColumnsPanel*) super;
-   int key = ((ListItem*) Panel_getSelected(super))->key;
    HandlerResult result = IGNORED;
 
    switch(ch) {
@@ -45,6 +39,11 @@ static HandlerResult AvailableColumnsPanel_eventHandler(Panel* super, int ch) {
       case KEY_ENTER:
       case KEY_F(5):
       {
+         const ListItem* selected = (ListItem*) Panel_getSelected(super);
+         if (!selected)
+            break;
+
+         int key = selected->key;
          int at = Panel_getSelectedIndex(this->columns);
          Panel_insert(this->columns, at, (Object*) ListItem_new(Process_fields[key].name, key));
          Panel_setSelected(this->columns, at+1);
@@ -54,7 +53,7 @@ static HandlerResult AvailableColumnsPanel_eventHandler(Panel* super, int ch) {
       }
       default:
       {
-         if (ch < 255 && isalpha(ch))
+         if (0 < ch && ch < 255 && isgraph((unsigned char)ch))
             result = Panel_selectByTyping(super, ch);
          break;
       }
@@ -62,7 +61,7 @@ static HandlerResult AvailableColumnsPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass AvailableColumnsPanel_class = {
+const PanelClass AvailableColumnsPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = AvailableColumnsPanel_delete
@@ -81,7 +80,7 @@ AvailableColumnsPanel* AvailableColumnsPanel_new(Panel* columns) {
    for (int i = 1; i < Platform_numberOfFields; i++) {
       if (i != COMM && Process_fields[i].description) {
          char description[256];
-         snprintf(description, sizeof(description), "%s - %s", Process_fields[i].name, Process_fields[i].description);
+         xSnprintf(description, sizeof(description), "%s - %s", Process_fields[i].name, Process_fields[i].description);
          Panel_add(super, (Object*) ListItem_new(description, i));
       }
    }

AvailableColumnsPanel.h

@@ -1,11 +1,9 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_AvailableColumnsPanel
 #define HEADER_AvailableColumnsPanel
 /*
 htop - AvailableColumnsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
@@ -16,8 +14,7 @@ typedef struct AvailableColumnsPanel_ {
    Panel* columns;
 } AvailableColumnsPanel;
 
-
-extern PanelClass AvailableColumnsPanel_class;
+extern const PanelClass AvailableColumnsPanel_class;
 
 AvailableColumnsPanel* AvailableColumnsPanel_new(Panel* columns);
 

AvailableMetersPanel.c

@@ -1,38 +1,27 @@
 /*
 htop - AvailableMetersPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "AvailableMetersPanel.h"
-#include "MetersPanel.h"
-
-#include "CPUMeter.h"
-#include "Header.h"
-#include "ListItem.h"
-#include "Platform.h"
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
 
-/*{
-#include "Settings.h"
-#include "Panel.h"
-#include "ScreenManager.h"
-#include "ProcessList.h"
+#include "CPUMeter.h"
+#include "FunctionBar.h"
+#include "Header.h"
+#include "ListItem.h"
+#include "Meter.h"
+#include "MetersPanel.h"
+#include "Object.h"
+#include "Platform.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef struct AvailableMetersPanel_ {
-   Panel super;
-   ScreenManager* scr;
-
-   Settings* settings;
-   Header* header;
-   Panel* leftPanel;
-   Panel* rightPanel;
-} AvailableMetersPanel;
-
-}*/
 
 static void AvailableMetersPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
@@ -41,19 +30,22 @@ static void AvailableMetersPanel_delete(Object* object) {
    free(this);
 }
 
-static inline void AvailableMetersPanel_addMeter(Header* header, Panel* panel, MeterClass* type, int param, int column) {
-   Meter* meter = (Meter*) Header_addMeterByClass(header, type, param, column);
+static inline void AvailableMetersPanel_addMeter(Header* header, Panel* panel, const MeterClass* type, int param, int column) {
+   Meter* meter = Header_addMeterByClass(header, type, param, column);
    Panel_add(panel, (Object*) Meter_toListItem(meter, false));
    Panel_setSelected(panel, Panel_size(panel) - 1);
    MetersPanel_setMoving((MetersPanel*)panel, true);
-   FunctionBar_draw(panel->currentBar, NULL);
+   FunctionBar_draw(panel->currentBar);
 }
 
 static HandlerResult AvailableMetersPanel_eventHandler(Panel* super, int ch) {
    AvailableMetersPanel* this = (AvailableMetersPanel*) super;
    Header* header = this->header;
 
-   ListItem* selected = (ListItem*) Panel_getSelected(super);
+   const ListItem* selected = (ListItem*) Panel_getSelected(super);
+   if (!selected)
+      return IGNORED;
+
    int param = selected->key & 0xff;
    int type = selected->key >> 16;
    HandlerResult result = IGNORED;
@@ -91,7 +83,7 @@ static HandlerResult AvailableMetersPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass AvailableMetersPanel_class = {
+const PanelClass AvailableMetersPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = AvailableMetersPanel_delete
@@ -115,19 +107,19 @@ AvailableMetersPanel* AvailableMetersPanel_new(Settings* settings, Header* heade
    // Platform_meterTypes[0] should be always (&CPUMeter_class), which we will
    // handle separately in the code below.
    for (int i = 1; Platform_meterTypes[i]; i++) {
-      MeterClass* type = Platform_meterTypes[i];
+      const MeterClass* type = Platform_meterTypes[i];
       assert(type != &CPUMeter_class);
       const char* label = type->description ? type->description : type->uiName;
       Panel_add(super, (Object*) ListItem_new(label, i << 16));
    }
    // Handle (&CPUMeter_class)
-   MeterClass* type = &CPUMeter_class;
+   const MeterClass* type = &CPUMeter_class;
    int cpus = pl->cpuCount;
    if (cpus > 1) {
       Panel_add(super, (Object*) ListItem_new("CPU average", 0));
       for (int i = 1; i <= cpus; i++) {
          char buffer[50];
-         snprintf(buffer, 50, "%s %d", type->uiName, i);
+         xSnprintf(buffer, sizeof(buffer), "%s %d", type->uiName, Settings_cpuId(this->settings, i - 1));
          Panel_add(super, (Object*) ListItem_new(buffer, i));
       }
    } else {

AvailableMetersPanel.h

@@ -1,18 +1,17 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_AvailableMetersPanel
 #define HEADER_AvailableMetersPanel
 /*
 htop - AvailableMetersPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Settings.h"
+#include "Header.h"
 #include "Panel.h"
-#include "ScreenManager.h"
 #include "ProcessList.h"
+#include "ScreenManager.h"
+#include "Settings.h"
 
 typedef struct AvailableMetersPanel_ {
    Panel super;
@@ -24,8 +23,7 @@ typedef struct AvailableMetersPanel_ {
    Panel* rightPanel;
 } AvailableMetersPanel;
 
-
-extern PanelClass AvailableMetersPanel_class;
+extern const PanelClass AvailableMetersPanel_class;
 
 AvailableMetersPanel* AvailableMetersPanel_new(Settings* settings, Header* header, Panel* leftMeters, Panel* rightMeters, ScreenManager* scr, ProcessList* pl);
 

BatteryMeter.c

@@ -1,7 +1,7 @@
 /*
 htop - BatteryMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 
 This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
@@ -9,26 +9,15 @@ This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
 
 #include "BatteryMeter.h"
 
-#include "Battery.h"
-#include "ProcessList.h"
+#include <math.h>
+
 #include "CRT.h"
-#include "StringUtils.h"
+#include "Object.h"
 #include "Platform.h"
+#include "XUtils.h"
 
-#include <string.h>
-#include <stdlib.h>
 
-/*{
-#include "Meter.h"
-
-typedef enum ACPresence_ {
-   AC_ABSENT,
-   AC_PRESENT,
-   AC_ERROR
-} ACPresence;
-}*/
-
-int BatteryMeter_attributes[] = {
+static const int BatteryMeter_attributes[] = {
    BATTERY
 };
 
@@ -36,11 +25,11 @@ static void BatteryMeter_updateValues(Meter * this, char *buffer, int len) {
    ACPresence isOnAC;
    double percent;
 
-   Battery_getData(&percent, &isOnAC);
+   Platform_getBattery(&percent, &isOnAC);
 
-   if (percent == -1) {
-      this->values[0] = 0;
-      snprintf(buffer, len, "n/a");
+   if (isnan(percent)) {
+      this->values[0] = NAN;
+      xSnprintf(buffer, len, "N/A");
       return;
    }
 
@@ -58,17 +47,15 @@ static void BatteryMeter_updateValues(Meter * this, char *buffer, int len) {
    }
 
    if (isOnAC == AC_PRESENT) {
-      snprintf(buffer, len, onAcText, percent);
+      xSnprintf(buffer, len, onAcText, percent);
    } else if (isOnAC == AC_ABSENT) {
-      snprintf(buffer, len, onBatteryText, percent);
+      xSnprintf(buffer, len, onBatteryText, percent);
    } else {
-      snprintf(buffer, len, unknownText, percent);
+      xSnprintf(buffer, len, unknownText, percent);
+   }
 }
 
-   return;
-}
-
-MeterClass BatteryMeter_class = {
+const MeterClass BatteryMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete

BatteryMeter.h

@@ -1,11 +1,9 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_BatteryMeter
 #define HEADER_BatteryMeter
 /*
 htop - BatteryMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 
 This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
@@ -19,8 +17,6 @@ typedef enum ACPresence_ {
    AC_ERROR
 } ACPresence;
 
-extern int BatteryMeter_attributes[];
-
-extern MeterClass BatteryMeter_class;
+extern const MeterClass BatteryMeter_class;
 
 #endif

CONTRIBUTING.md

@@ -0,0 +1,45 @@
+Contributing Guide
+==================
+
+Thank you so much for taking the time to contribute in to htop!
+
+Bug Reports
+-----------
+
+Bug reports should be posted in the [Github issue
+tracker](https://github.com/htop-dev/htop/issues).
+Bug reports are extremely important since it's impossible for us to test
+htop in every possible system, distribution and scenario. Your feedback
+is what keeps the tool stable and always improving!  Thank you!
+
+Pull Requests
+-------------
+
+Code contributions are most welcome! Just [fork the
+repo](https://github.com/htop-dev/htop) and send a [pull
+request](https://github.com/htop-dev/htop/pulls).  Help is especially
+appreciated for support of platforms other than Linux.  If proposing new
+features, please be mindful that htop is a system tool that needs to keep a
+small footprint and perform well on systems under stress -- so unfortunately
+we can't accept every new feature proposed, as we need to keep the tool slim
+and maintainable.  Great ideas backed by a PR are always carefully considered
+for inclusion though!  Also, PRs containing bug fixes and portability tweaks
+are always included, please send those in!
+
+Feature Requests
+----------------
+
+Please label Github issues that are feature requests with the [`feature
+request`](https://github.com/htop-dev/htop/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3A%22feature+request%22+)
+label.
+
+Style Guide
+-----------
+
+To make working with the code easier a set of guidelines have evolved in
+the past that new contributions should try to follow. While they are not set
+in stone and always up for changes should the need arise they still provide
+a first orientation to go by when contributing to this repository.
+
+The details of the coding style as well as what to take care about with your
+contributions can be found in our [style guide](docs/styleguide.md).

COPYING

@@ -353,4 +353,3 @@ Public License instead of this License.
  applicable licenses of the version of PLPA used in your combined work,
  provided that you include the source code of such version of PLPA when
  and as the GNU GPL requires distribution of source code.
-

CPUMeter.c

@@ -1,54 +1,49 @@
 /*
 htop - CPUMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "CPUMeter.h"
 
-#include "CRT.h"
-#include "Settings.h"
-#include "Platform.h"
-
-#include <assert.h>
+#include <math.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <math.h>
 
-/*{
-#include "Meter.h"
+#include "CRT.h"
+#include "Object.h"
+#include "Platform.h"
+#include "ProcessList.h"
+#include "RichString.h"
+#include "Settings.h"
+#include "XUtils.h"
 
-typedef enum {
-   CPU_METER_NICE = 0,
-   CPU_METER_NORMAL = 1,
-   CPU_METER_KERNEL = 2,
-   CPU_METER_IRQ = 3,
-   CPU_METER_SOFTIRQ = 4,
-   CPU_METER_STEAL = 5,
-   CPU_METER_GUEST = 6,
-   CPU_METER_IOWAIT = 7,
-   CPU_METER_ITEMCOUNT = 8, // number of entries in this enum
-} CPUMeterValues;
 
-}*/
-
-int CPUMeter_attributes[] = {
-   CPU_NICE, CPU_NORMAL, CPU_KERNEL, CPU_IRQ, CPU_SOFTIRQ, CPU_STEAL, CPU_GUEST, CPU_IOWAIT
+static const int CPUMeter_attributes[] = {
+   CPU_NICE,
+   CPU_NORMAL,
+   CPU_SYSTEM,
+   CPU_IRQ,
+   CPU_SOFTIRQ,
+   CPU_STEAL,
+   CPU_GUEST,
+   CPU_IOWAIT
 };
 
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
+typedef struct CPUMeterData_ {
+   int cpus;
+   Meter** meters;
+} CPUMeterData;
 
 static void CPUMeter_init(Meter* this) {
    int cpu = this->param;
    if (this->pl->cpuCount > 1) {
       char caption[10];
-      sprintf(caption, "%-3d", Settings_cpuId(this->pl->settings, cpu - 1));
+      xSnprintf(caption, sizeof(caption), "%3d", Settings_cpuId(this->pl->settings, cpu - 1));
       Meter_setCaption(this, caption);
    }
    if (this->param == 0)
@@ -58,68 +53,123 @@ static void CPUMeter_init(Meter* this) {
 static void CPUMeter_updateValues(Meter* this, char* buffer, int size) {
    int cpu = this->param;
    if (cpu > this->pl->cpuCount) {
-      snprintf(buffer, size, "absent");
+      xSnprintf(buffer, size, "absent");
+      for (uint8_t i = 0; i < this->curItems; i++)
+         this->values[i] = 0;
       return;
    }
    memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
+
+   char cpuUsageBuffer[8] = { 0 };
+   char cpuFrequencyBuffer[16] = { 0 };
+   char cpuTemperatureBuffer[16] = { 0 };
+
    double percent = Platform_setCPUValues(this, cpu);
-   snprintf(buffer, size, "%5.1f%%", percent);
+
+   if (this->pl->settings->showCPUUsage) {
+      xSnprintf(cpuUsageBuffer, sizeof(cpuUsageBuffer), "%5.1f%%", percent);
    }
 
-static void CPUMeter_display(Object* cast, RichString* out) {
+   if (this->pl->settings->showCPUFrequency) {
+      double cpuFrequency = this->values[CPU_METER_FREQUENCY];
+      if (isnan(cpuFrequency)) {
+         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "N/A");
+      } else {
+         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "%4uMHz", (unsigned)cpuFrequency);
+      }
+   }
+
+   #ifdef HAVE_SENSORS_SENSORS_H
+   if (this->pl->settings->showCPUTemperature) {
+      double cpuTemperature = this->values[CPU_METER_TEMPERATURE];
+      if (isnan(cpuTemperature))
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "N/A");
+      else if (this->pl->settings->degreeFahrenheit)
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%3d%sF", (int)(cpuTemperature * 9 / 5 + 32), CRT_degreeSign);
+      else
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%d%sC", (int)cpuTemperature, CRT_degreeSign);
+   }
+   #endif
+
+   xSnprintf(buffer, size, "%s%s%s%s%s",
+             cpuUsageBuffer,
+             (cpuUsageBuffer[0] && (cpuFrequencyBuffer[0] || cpuTemperatureBuffer[0])) ? " " : "",
+             cpuFrequencyBuffer,
+             (cpuFrequencyBuffer[0] && cpuTemperatureBuffer[0]) ? " " : "",
+             cpuTemperatureBuffer);
+}
+
+static void CPUMeter_display(const Object* cast, RichString* out) {
    char buffer[50];
-   Meter* this = (Meter*)cast;
+   const Meter* this = (const Meter*)cast;
    RichString_prune(out);
    if (this->param > this->pl->cpuCount) {
       RichString_append(out, CRT_colors[METER_TEXT], "absent");
       return;
    }
-   sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_NORMAL]);
+   xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NORMAL]);
    RichString_append(out, CRT_colors[METER_TEXT], ":");
    RichString_append(out, CRT_colors[CPU_NORMAL], buffer);
    if (this->pl->settings->detailedCPUTime) {
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_KERNEL]);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
       RichString_append(out, CRT_colors[METER_TEXT], "sy:");
-      RichString_append(out, CRT_colors[CPU_KERNEL], buffer);
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_NICE]);
+      RichString_append(out, CRT_colors[CPU_SYSTEM], buffer);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
       RichString_append(out, CRT_colors[METER_TEXT], "ni:");
       RichString_append(out, CRT_colors[CPU_NICE_TEXT], buffer);
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_IRQ]);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
       RichString_append(out, CRT_colors[METER_TEXT], "hi:");
       RichString_append(out, CRT_colors[CPU_IRQ], buffer);
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_SOFTIRQ]);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_SOFTIRQ]);
       RichString_append(out, CRT_colors[METER_TEXT], "si:");
       RichString_append(out, CRT_colors[CPU_SOFTIRQ], buffer);
-      if (this->values[CPU_METER_STEAL]) {
-         sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_STEAL]);
+      if (!isnan(this->values[CPU_METER_STEAL])) {
+         xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_STEAL]);
          RichString_append(out, CRT_colors[METER_TEXT], "st:");
          RichString_append(out, CRT_colors[CPU_STEAL], buffer);
       }
-      if (this->values[CPU_METER_GUEST]) {
-         sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_GUEST]);
+      if (!isnan(this->values[CPU_METER_GUEST])) {
+         xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_GUEST]);
          RichString_append(out, CRT_colors[METER_TEXT], "gu:");
          RichString_append(out, CRT_colors[CPU_GUEST], buffer);
       }
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_IOWAIT]);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IOWAIT]);
       RichString_append(out, CRT_colors[METER_TEXT], "wa:");
       RichString_append(out, CRT_colors[CPU_IOWAIT], buffer);
    } else {
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_KERNEL]);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
       RichString_append(out, CRT_colors[METER_TEXT], "sys:");
-      RichString_append(out, CRT_colors[CPU_KERNEL], buffer);
-      sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_NICE]);
+      RichString_append(out, CRT_colors[CPU_SYSTEM], buffer);
+      xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
       RichString_append(out, CRT_colors[METER_TEXT], "low:");
       RichString_append(out, CRT_colors[CPU_NICE_TEXT], buffer);
-      if (this->values[CPU_METER_IRQ]) {
-         sprintf(buffer, "%5.1f%% ", this->values[CPU_METER_IRQ]);
+      if (!isnan(this->values[CPU_METER_IRQ])) {
+         xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
          RichString_append(out, CRT_colors[METER_TEXT], "vir:");
          RichString_append(out, CRT_colors[CPU_GUEST], buffer);
       }
    }
+
+   #ifdef HAVE_SENSORS_SENSORS_H
+   if (this->pl->settings->showCPUTemperature) {
+      char cpuTemperatureBuffer[10];
+      double cpuTemperature = this->values[CPU_METER_TEMPERATURE];
+      if (isnan(cpuTemperature)) {
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "N/A");
+      } else if (this->pl->settings->degreeFahrenheit) {
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sF", cpuTemperature * 9 / 5 + 32, CRT_degreeSign);
+      } else {
+         xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sC", cpuTemperature, CRT_degreeSign);
+      }
+      RichString_append(out, CRT_colors[METER_TEXT], "temp:");
+      RichString_append(out, CRT_colors[METER_VALUE], cpuTemperatureBuffer);
+   }
+   #endif
 }
 
 static void AllCPUsMeter_getRange(Meter* this, int* start, int* count) {
-   int cpus = this->pl->cpuCount;
+   CPUMeterData* data = this->meterData;
+   int cpus = data->cpus;
    switch(Meter_name(this)[0]) {
       default:
       case 'A': // All
@@ -137,37 +187,34 @@ static void AllCPUsMeter_getRange(Meter* this, int* start, int* count) {
    }
 }
 
-static void AllCPUsMeter_init(Meter* this) {
+static void CPUMeterCommonInit(Meter* this, int ncol) {
    int cpus = this->pl->cpuCount;
-   if (!this->drawData)
-      this->drawData = xCalloc(cpus, sizeof(Meter*));
-   Meter** meters = (Meter**) this->drawData;
+   CPUMeterData* data = this->meterData;
+   if (!data) {
+      data = this->meterData = xMalloc(sizeof(CPUMeterData));
+      data->cpus = cpus;
+      data->meters = xCalloc(cpus, sizeof(Meter*));
+   }
+   Meter** meters = data->meters;
    int start, count;
    AllCPUsMeter_getRange(this, &start, &count);
    for (int i = 0; i < count; i++) {
       if (!meters[i])
-         meters[i] = Meter_new(this->pl, start+i+1, (MeterClass*) Class(CPUMeter));
+         meters[i] = Meter_new(this->pl, start + i + 1, (const MeterClass*) Class(CPUMeter));
+
       Meter_init(meters[i]);
    }
+
    if (this->mode == 0)
       this->mode = BAR_METERMODE;
+
    int h = Meter_modes[this->mode]->h;
-   if (strchr(Meter_name(this), '2'))
-      this->h = h * ((count+1) / 2);
-   else
-      this->h = h * count;
+   this->h = h * ((count + ncol - 1) / ncol);
 }
 
-static void AllCPUsMeter_done(Meter* this) {
-   Meter** meters = (Meter**) this->drawData;
-   int start, count;
-   AllCPUsMeter_getRange(this, &start, &count);
-   for (int i = 0; i < count; i++)
-      Meter_delete((Object*)meters[i]);
-}
-
-static void AllCPUsMeter_updateMode(Meter* this, int mode) {
-   Meter** meters = (Meter**) this->drawData;
+static void CPUMeterCommonUpdateMode(Meter* this, int mode, int ncol) {
+   CPUMeterData* data = this->meterData;
+   Meter** meters = data->meters;
    this->mode = mode;
    int h = Meter_modes[mode]->h;
    int start, count;
@@ -175,32 +222,84 @@ static void AllCPUsMeter_updateMode(Meter* this, int mode) {
    for (int i = 0; i < count; i++) {
       Meter_setMode(meters[i], mode);
    }
-   if (strchr(Meter_name(this), '2'))
-      this->h = h * ((count+1) / 2);
-   else
-      this->h = h * count;
+   this->h = h * ((count + ncol - 1) / ncol);
+}
+
+static void AllCPUsMeter_done(Meter* this) {
+   CPUMeterData* data = this->meterData;
+   Meter** meters = data->meters;
+   int start, count;
+   AllCPUsMeter_getRange(this, &start, &count);
+   for (int i = 0; i < count; i++)
+      Meter_delete((Object*)meters[i]);
+   free(data->meters);
+   free(data);
+}
+
+static void SingleColCPUsMeter_init(Meter* this) {
+   CPUMeterCommonInit(this, 1);
+}
+
+static void SingleColCPUsMeter_updateMode(Meter* this, int mode) {
+   CPUMeterCommonUpdateMode(this, mode, 1);
+}
+
+static void DualColCPUsMeter_init(Meter* this) {
+   CPUMeterCommonInit(this, 2);
+}
+
+static void DualColCPUsMeter_updateMode(Meter* this, int mode) {
+   CPUMeterCommonUpdateMode(this, mode, 2);
+}
+
+static void QuadColCPUsMeter_init(Meter* this) {
+   CPUMeterCommonInit(this, 4);
+}
+
+static void QuadColCPUsMeter_updateMode(Meter* this, int mode) {
+   CPUMeterCommonUpdateMode(this, mode, 4);
+}
+
+static void OctoColCPUsMeter_init(Meter* this) {
+   CPUMeterCommonInit(this, 8);
+}
+
+static void OctoColCPUsMeter_updateMode(Meter* this, int mode) {
+   CPUMeterCommonUpdateMode(this, mode, 8);
+}
+
+static void CPUMeterCommonDraw(Meter* this, int x, int y, int w, int ncol) {
+   CPUMeterData* data = this->meterData;
+   Meter** meters = data->meters;
+   int start, count;
+   AllCPUsMeter_getRange(this, &start, &count);
+   int colwidth = (w - ncol) / ncol + 1;
+   int diff = (w - (colwidth * ncol));
+   int nrows = (count + ncol - 1) / ncol;
+   for (int i = 0; i < count; i++) {
+      int d = (i / nrows) > diff ? diff : (i / nrows); // dynamic spacer
+      int xpos = x + ((i / nrows) * colwidth) + d;
+      int ypos = y + ((i % nrows) * meters[0]->h);
+      meters[i]->draw(meters[i], xpos, ypos, colwidth);
+   }
 }
 
 static void DualColCPUsMeter_draw(Meter* this, int x, int y, int w) {
-   Meter** meters = (Meter**) this->drawData;
-   int start, count;
-   int pad = this->pl->settings->headerMargin ? 2 : 0;
-   AllCPUsMeter_getRange(this, &start, &count);
-   int height = (count+1)/2;
-   int startY = y;
-   for (int i = 0; i < height; i++) {
-      meters[i]->draw(meters[i], x, y, (w-pad)/2);
-      y += meters[i]->h;
-   }
-   y = startY;
-   for (int i = height; i < count; i++) {
-      meters[i]->draw(meters[i], x+(w-1)/2+1+(pad/2), y, (w-pad)/2);
-      y += meters[i]->h;
-   }
+   CPUMeterCommonDraw(this, x, y, w, 2);
 }
 
+static void QuadColCPUsMeter_draw(Meter* this, int x, int y, int w) {
+   CPUMeterCommonDraw(this, x, y, w, 4);
+}
+
+static void OctoColCPUsMeter_draw(Meter* this, int x, int y, int w) {
+   CPUMeterCommonDraw(this, x, y, w, 8);
+}
+
+
 static void SingleColCPUsMeter_draw(Meter* this, int x, int y, int w) {
-   Meter** meters = (Meter**) this->drawData;
+   CPUMeterData* data = this->meterData;
+   Meter** meters = data->meters;
    int start, count;
    AllCPUsMeter_getRange(this, &start, &count);
    for (int i = 0; i < count; i++) {
@@ -209,7 +308,8 @@ static void SingleColCPUsMeter_draw(Meter* this, int x, int y, int w) {
    }
 }
 
-MeterClass CPUMeter_class = {
+
+const MeterClass CPUMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -226,7 +326,7 @@ MeterClass CPUMeter_class = {
    .init = CPUMeter_init
 };
 
-MeterClass AllCPUsMeter_class = {
+const MeterClass AllCPUsMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -240,12 +340,12 @@ MeterClass AllCPUsMeter_class = {
    .description = "CPUs (1/1): all CPUs",
    .caption = "CPU",
    .draw = SingleColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = SingleColCPUsMeter_init,
+   .updateMode = SingleColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
-MeterClass AllCPUs2Meter_class = {
+const MeterClass AllCPUs2Meter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -259,12 +359,12 @@ MeterClass AllCPUs2Meter_class = {
    .description = "CPUs (1&2/2): all CPUs in 2 shorter columns",
    .caption = "CPU",
    .draw = DualColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = DualColCPUsMeter_init,
+   .updateMode = DualColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
-MeterClass LeftCPUsMeter_class = {
+const MeterClass LeftCPUsMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -278,12 +378,12 @@ MeterClass LeftCPUsMeter_class = {
    .description = "CPUs (1/2): first half of list",
    .caption = "CPU",
    .draw = SingleColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = SingleColCPUsMeter_init,
+   .updateMode = SingleColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
-MeterClass RightCPUsMeter_class = {
+const MeterClass RightCPUsMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -297,12 +397,12 @@ MeterClass RightCPUsMeter_class = {
    .description = "CPUs (2/2): second half of list",
    .caption = "CPU",
    .draw = SingleColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = SingleColCPUsMeter_init,
+   .updateMode = SingleColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
-MeterClass LeftCPUs2Meter_class = {
+const MeterClass LeftCPUs2Meter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -316,12 +416,12 @@ MeterClass LeftCPUs2Meter_class = {
    .description = "CPUs (1&2/4): first half in 2 shorter columns",
    .caption = "CPU",
    .draw = DualColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = DualColCPUsMeter_init,
+   .updateMode = DualColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
-MeterClass RightCPUs2Meter_class = {
+const MeterClass RightCPUs2Meter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -335,8 +435,121 @@ MeterClass RightCPUs2Meter_class = {
    .description = "CPUs (3&4/4): second half in 2 shorter columns",
    .caption = "CPU",
    .draw = DualColCPUsMeter_draw,
-   .init = AllCPUsMeter_init,
-   .updateMode = AllCPUsMeter_updateMode,
+   .init = DualColCPUsMeter_init,
+   .updateMode = DualColCPUsMeter_updateMode,
    .done = AllCPUsMeter_done
 };
 
+const MeterClass AllCPUs4Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "AllCPUs4",
+   .uiName = "CPUs (1&2&3&4/4)",
+   .description = "CPUs (1&2&3&4/4): all CPUs in 4 shorter columns",
+   .caption = "CPU",
+   .draw = QuadColCPUsMeter_draw,
+   .init = QuadColCPUsMeter_init,
+   .updateMode = QuadColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};
+
+const MeterClass LeftCPUs4Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "LeftCPUs4",
+   .uiName = "CPUs (1-4/8)",
+   .description = "CPUs (1-4/8): first half in 4 shorter columns",
+   .caption = "CPU",
+   .draw = QuadColCPUsMeter_draw,
+   .init = QuadColCPUsMeter_init,
+   .updateMode = QuadColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};
+
+const MeterClass RightCPUs4Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "RightCPUs4",
+   .uiName = "CPUs (5-8/8)",
+   .description = "CPUs (5-8/8): second half in 4 shorter columns",
+   .caption = "CPU",
+   .draw = QuadColCPUsMeter_draw,
+   .init = QuadColCPUsMeter_init,
+   .updateMode = QuadColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};
+
+const MeterClass AllCPUs8Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "AllCPUs8",
+   .uiName = "CPUs (1-8/8)",
+   .description = "CPUs (1-8/8): all CPUs in 8 shorter columns",
+   .caption = "CPU",
+   .draw = OctoColCPUsMeter_draw,
+   .init = OctoColCPUsMeter_init,
+   .updateMode = OctoColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};
+
+const MeterClass LeftCPUs8Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "LeftCPUs8",
+   .uiName = "CPUs (1-8/16)",
+   .description = "CPUs (1-8/16): first half in 8 shorter columns",
+   .caption = "CPU",
+   .draw = OctoColCPUsMeter_draw,
+   .init = OctoColCPUsMeter_init,
+   .updateMode = OctoColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};
+
+const MeterClass RightCPUs8Meter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = CPUMeter_display
+   },
+   .defaultMode = CUSTOM_METERMODE,
+   .total = 100.0,
+   .attributes = CPUMeter_attributes,
+   .name = "RightCPUs8",
+   .uiName = "CPUs (9-16/16)",
+   .description = "CPUs (9-16/16): second half in 8 shorter columns",
+   .caption = "CPU",
+   .draw = OctoColCPUsMeter_draw,
+   .init = OctoColCPUsMeter_init,
+   .updateMode = OctoColCPUsMeter_updateMode,
+   .done = AllCPUsMeter_done
+};

CPUMeter.h

@@ -1,11 +1,9 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_CPUMeter
 #define HEADER_CPUMeter
 /*
 htop - CPUMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
@@ -20,32 +18,35 @@ typedef enum {
    CPU_METER_STEAL = 5,
    CPU_METER_GUEST = 6,
    CPU_METER_IOWAIT = 7,
-   CPU_METER_ITEMCOUNT = 8, // number of entries in this enum
+   CPU_METER_FREQUENCY = 8,
+   CPU_METER_TEMPERATURE = 9,
+   CPU_METER_ITEMCOUNT = 10, // number of entries in this enum
 } CPUMeterValues;
 
+extern const MeterClass CPUMeter_class;
 
-extern int CPUMeter_attributes[];
+extern const MeterClass AllCPUsMeter_class;
 
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
+extern const MeterClass AllCPUs2Meter_class;
 
-extern MeterClass CPUMeter_class;
+extern const MeterClass LeftCPUsMeter_class;
 
-extern MeterClass AllCPUsMeter_class;
+extern const MeterClass RightCPUsMeter_class;
 
-extern MeterClass AllCPUs2Meter_class;
+extern const MeterClass LeftCPUs2Meter_class;
 
-extern MeterClass LeftCPUsMeter_class;
+extern const MeterClass RightCPUs2Meter_class;
 
-extern MeterClass RightCPUsMeter_class;
+extern const MeterClass AllCPUs4Meter_class;
 
-extern MeterClass LeftCPUs2Meter_class;
+extern const MeterClass LeftCPUs4Meter_class;
 
-extern MeterClass RightCPUs2Meter_class;
+extern const MeterClass RightCPUs4Meter_class;
 
+extern const MeterClass AllCPUs8Meter_class;
+
+extern const MeterClass LeftCPUs8Meter_class;
+
+extern const MeterClass RightCPUs8Meter_class;
 
 #endif

CRT.c

@@ -1,24 +1,34 @@
 /*
 htop - CRT.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "CRT.h"
 
-#include "StringUtils.h"
-#include "RichString.h"
-
-#include <stdio.h>
 #include <errno.h>
+#include <langinfo.h>
+#include <locale.h>
 #include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <locale.h>
-#include <langinfo.h>
+#include <unistd.h>
 
-#define ColorPair(i,j) COLOR_PAIR((7-i)*8+j)
+#include "ProvideCurses.h"
+#include "XUtils.h"
+
+#ifdef HAVE_EXECINFO_H
+#include <execinfo.h>
+#endif
+
+
+#define ColorIndex(i,j) ((7-(i))*8+(j))
+
+#define ColorPair(i,j) COLOR_PAIR(ColorIndex(i,j))
 
 #define Black   COLOR_BLACK
 #define Red     COLOR_RED
@@ -29,107 +39,10 @@ in the source distribution for its full text.
 #define Cyan    COLOR_CYAN
 #define White   COLOR_WHITE
 
-#define KEY_WHEELUP KEY_F(20)
-#define KEY_WHEELDOWN KEY_F(21)
-#define KEY_RECLICK KEY_F(22)
+#define ColorPairGrayBlack  ColorPair(Magenta,Magenta)
+#define ColorIndexGrayBlack ColorIndex(Magenta,Magenta)
 
-//#link curses
-
-/*{
-#include <stdbool.h>
-
-typedef enum TreeStr_ {
-   TREE_STR_HORZ,
-   TREE_STR_VERT,
-   TREE_STR_RTEE,
-   TREE_STR_BEND,
-   TREE_STR_TEND,
-   TREE_STR_OPEN,
-   TREE_STR_SHUT,
-   TREE_STR_COUNT
-} TreeStr;
-
-typedef enum ColorSchemes_ {
-   COLORSCHEME_DEFAULT = 0,
-   COLORSCHEME_MONOCHROME = 1,
-   COLORSCHEME_BLACKONWHITE = 2,
-   COLORSCHEME_LIGHTTERMINAL = 3,
-   COLORSCHEME_MIDNIGHT = 4,
-   COLORSCHEME_BLACKNIGHT = 5,
-   COLORSCHEME_BROKENGRAY = 6,
-   LAST_COLORSCHEME = 7,
-} ColorSchemes;
-
-typedef enum ColorElements_ {
-   RESET_COLOR,
-   DEFAULT_COLOR,
-   FUNCTION_BAR,
-   FUNCTION_KEY,
-   FAILED_SEARCH,
-   PANEL_HEADER_FOCUS,
-   PANEL_HEADER_UNFOCUS,
-   PANEL_SELECTION_FOCUS,
-   PANEL_SELECTION_FOLLOW,
-   PANEL_SELECTION_UNFOCUS,
-   LARGE_NUMBER,
-   METER_TEXT,
-   METER_VALUE,
-   LED_COLOR,
-   UPTIME,
-   BATTERY,
-   TASKS_RUNNING,
-   SWAP,
-   PROCESS,
-   PROCESS_SHADOW,
-   PROCESS_TAG,
-   PROCESS_MEGABYTES,
-   PROCESS_TREE,
-   PROCESS_R_STATE,
-   PROCESS_D_STATE,
-   PROCESS_BASENAME,
-   PROCESS_HIGH_PRIORITY,
-   PROCESS_LOW_PRIORITY,
-   PROCESS_THREAD,
-   PROCESS_THREAD_BASENAME,
-   BAR_BORDER,
-   BAR_SHADOW,
-   GRAPH_1,
-   GRAPH_2,
-   MEMORY_USED,
-   MEMORY_BUFFERS,
-   MEMORY_BUFFERS_TEXT,
-   MEMORY_CACHE,
-   LOAD,
-   LOAD_AVERAGE_FIFTEEN,
-   LOAD_AVERAGE_FIVE,
-   LOAD_AVERAGE_ONE,
-   CHECK_BOX,
-   CHECK_MARK,
-   CHECK_TEXT,
-   CLOCK,
-   HELP_BOLD,
-   HOSTNAME,
-   CPU_NICE,
-   CPU_NICE_TEXT,
-   CPU_NORMAL,
-   CPU_KERNEL,
-   CPU_IOWAIT,
-   CPU_IRQ,
-   CPU_SOFTIRQ,
-   CPU_STEAL,
-   CPU_GUEST,
-   LAST_COLORELEMENT
-} ColorElements;
-
-void CRT_fatalError(const char* note) __attribute__ ((noreturn));
-
-void CRT_handleSIGSEGV(int sgn);
-
-#define KEY_ALT(x) (KEY_F(64 - 26) + (x - 'A'))
-
-}*/
-
-const char *CRT_treeStrAscii[TREE_STR_COUNT] = {
+static const char* const CRT_treeStrAscii[TREE_STR_COUNT] = {
    "-", // TREE_STR_HORZ
    "|", // TREE_STR_VERT
    "`", // TREE_STR_RTEE
@@ -141,13 +54,15 @@ const char *CRT_treeStrAscii[TREE_STR_COUNT] = {
 
 #ifdef HAVE_LIBNCURSESW
 
-const char *CRT_treeStrUtf8[TREE_STR_COUNT] = {
+static const char* const CRT_treeStrUtf8[TREE_STR_COUNT] = {
    "\xe2\x94\x80", // TREE_STR_HORZ ─
    "\xe2\x94\x82", // TREE_STR_VERT │
    "\xe2\x94\x9c", // TREE_STR_RTEE ├
    "\xe2\x94\x94", // TREE_STR_BEND └
    "\xe2\x94\x8c", // TREE_STR_TEND ┌
-   "+",            // TREE_STR_OPEN +
+   "+",            // TREE_STR_OPEN +, TODO use 🮯 'BOX DRAWINGS LIGHT HORIZONTAL
+                   // WITH VERTICAL STROKE' (U+1FBAF, "\xf0\x9f\xae\xaf") when
+                   // Unicode 13 is common
    "\xe2\x94\x80", // TREE_STR_SHUT ─
 };
 
@@ -155,13 +70,28 @@ bool CRT_utf8 = false;
 
 #endif
 
-const char **CRT_treeStr = CRT_treeStrAscii;
+const char* const* CRT_treeStr = CRT_treeStrAscii;
 
-static bool CRT_hasColors;
+static const int* CRT_delay;
 
-int CRT_delay = 0;
+const char* CRT_degreeSign;
 
-int* CRT_colors;
+static const char* initDegreeSign(void) {
+#ifdef HAVE_LIBNCURSESW
+   if (CRT_utf8)
+      return "\xc2\xb0";
+#endif
+
+   static char buffer[4];
+   // this might fail if the current locale does not support wide characters
+   int r = snprintf(buffer, sizeof(buffer), "%lc", 176);
+   if (r > 0)
+      return buffer;
+
+   return "";
+}
+
+const int* CRT_colors;
 
 int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
    [COLORSCHEME_DEFAULT] = {
@@ -175,27 +105,39 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
       [PANEL_SELECTION_UNFOCUS] = ColorPair(Black, White),
       [FAILED_SEARCH] = ColorPair(Red, Cyan),
+      [FAILED_READ] = A_BOLD | ColorPair(Red, Black),
+      [PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
       [UPTIME] = A_BOLD | ColorPair(Cyan, Black),
       [BATTERY] = A_BOLD | ColorPair(Cyan, Black),
       [LARGE_NUMBER] = A_BOLD | ColorPair(Red, Black),
       [METER_TEXT] = ColorPair(Cyan, Black),
       [METER_VALUE] = A_BOLD | ColorPair(Cyan, Black),
+      [METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
+      [METER_VALUE_IOREAD] = ColorPair(Green, Black),
+      [METER_VALUE_IOWRITE] = ColorPair(Blue, Black),
+      [METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Black),
+      [METER_VALUE_OK] = ColorPair(Green, Black),
       [LED_COLOR] = ColorPair(Green, Black),
       [TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
       [PROCESS] = A_NORMAL,
-      [PROCESS_SHADOW] = A_BOLD | ColorPair(Black,Black),
+      [PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
       [PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Black),
       [PROCESS_MEGABYTES] = ColorPair(Cyan, Black),
+      [PROCESS_GIGABYTES] = ColorPair(Green, Black),
       [PROCESS_BASENAME] = A_BOLD | ColorPair(Cyan, Black),
       [PROCESS_TREE] = ColorPair(Cyan, Black),
       [PROCESS_R_STATE] = ColorPair(Green, Black),
       [PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
       [PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
       [PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
+      [PROCESS_NEW] = ColorPair(Black, Green),
+      [PROCESS_TOMB] = ColorPair(Black, Red),
       [PROCESS_THREAD] = ColorPair(Green, Black),
       [PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Black),
+      [PROCESS_COMM] = ColorPair(Magenta, Black),
+      [PROCESS_THREAD_COMM] = ColorPair(Blue, Black),
       [BAR_BORDER] = A_BOLD,
-      [BAR_SHADOW] = A_BOLD | ColorPair(Black,Black),
+      [BAR_SHADOW] = A_BOLD | ColorPairGrayBlack,
       [SWAP] = ColorPair(Red, Black),
       [GRAPH_1] = A_BOLD | ColorPair(Cyan, Black),
       [GRAPH_2] = ColorPair(Cyan, Black),
@@ -209,6 +151,8 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [LOAD] = A_BOLD,
       [HELP_BOLD] = A_BOLD | ColorPair(Cyan, Black),
       [CLOCK] = A_BOLD,
+      [DATE] = A_BOLD,
+      [DATETIME] = A_BOLD,
       [CHECK_BOX] = ColorPair(Cyan, Black),
       [CHECK_MARK] = A_BOLD,
       [CHECK_TEXT] = A_NORMAL,
@@ -216,12 +160,23 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [CPU_NICE] = ColorPair(Blue, Black),
       [CPU_NICE_TEXT] = A_BOLD | ColorPair(Blue, Black),
       [CPU_NORMAL] = ColorPair(Green, Black),
-      [CPU_KERNEL] = ColorPair(Red,Black),
-      [CPU_IOWAIT] = A_BOLD | ColorPair(Black, Black),
+      [CPU_SYSTEM] = ColorPair(Red, Black),
+      [CPU_IOWAIT] = A_BOLD | ColorPairGrayBlack,
       [CPU_IRQ] = ColorPair(Yellow, Black),
       [CPU_SOFTIRQ] = ColorPair(Magenta, Black),
       [CPU_STEAL] = ColorPair(Cyan, Black),
       [CPU_GUEST] = ColorPair(Cyan, Black),
+      [PRESSURE_STALL_THREEHUNDRED] = ColorPair(Cyan, Black),
+      [PRESSURE_STALL_SIXTY] = A_BOLD | ColorPair(Cyan, Black),
+      [PRESSURE_STALL_TEN] = A_BOLD | ColorPair(White, Black),
+      [ZFS_MFU] = ColorPair(Blue, Black),
+      [ZFS_MRU] = ColorPair(Yellow, Black),
+      [ZFS_ANON] = ColorPair(Magenta, Black),
+      [ZFS_HEADER] = ColorPair(Cyan, Black),
+      [ZFS_OTHER] = ColorPair(Magenta, Black),
+      [ZFS_COMPRESSED] = ColorPair(Blue, Black),
+      [ZFS_RATIO] = ColorPair(Magenta, Black),
+      [ZRAM] = ColorPair(Yellow, Black),
    },
    [COLORSCHEME_MONOCHROME] = {
       [RESET_COLOR] = A_NORMAL,
@@ -234,25 +189,37 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [PANEL_SELECTION_FOLLOW] = A_REVERSE,
       [PANEL_SELECTION_UNFOCUS] = A_BOLD,
       [FAILED_SEARCH] = A_REVERSE | A_BOLD,
+      [FAILED_READ] = A_BOLD,
+      [PAUSED] = A_BOLD | A_REVERSE,
       [UPTIME] = A_BOLD,
       [BATTERY] = A_BOLD,
       [LARGE_NUMBER] = A_BOLD,
       [METER_TEXT] = A_NORMAL,
       [METER_VALUE] = A_BOLD,
+      [METER_VALUE_ERROR] = A_BOLD,
+      [METER_VALUE_IOREAD] = A_NORMAL,
+      [METER_VALUE_IOWRITE] = A_NORMAL,
+      [METER_VALUE_NOTICE] = A_BOLD,
+      [METER_VALUE_OK] = A_NORMAL,
       [LED_COLOR] = A_NORMAL,
       [TASKS_RUNNING] = A_BOLD,
       [PROCESS] = A_NORMAL,
       [PROCESS_SHADOW] = A_DIM,
       [PROCESS_TAG] = A_BOLD,
       [PROCESS_MEGABYTES] = A_BOLD,
+      [PROCESS_GIGABYTES] = A_BOLD,
       [PROCESS_BASENAME] = A_BOLD,
       [PROCESS_TREE] = A_BOLD,
       [PROCESS_R_STATE] = A_BOLD,
       [PROCESS_D_STATE] = A_BOLD,
       [PROCESS_HIGH_PRIORITY] = A_BOLD,
       [PROCESS_LOW_PRIORITY] = A_DIM,
+      [PROCESS_NEW] = A_BOLD,
+      [PROCESS_TOMB] = A_DIM,
       [PROCESS_THREAD] = A_BOLD,
       [PROCESS_THREAD_BASENAME] = A_REVERSE,
+      [PROCESS_COMM] = A_BOLD,
+      [PROCESS_THREAD_COMM] = A_REVERSE,
       [BAR_BORDER] = A_BOLD,
       [BAR_SHADOW] = A_DIM,
       [SWAP] = A_BOLD,
@@ -268,6 +235,8 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [LOAD] = A_BOLD,
       [HELP_BOLD] = A_BOLD,
       [CLOCK] = A_BOLD,
+      [DATE] = A_BOLD,
+      [DATETIME] = A_BOLD,
       [CHECK_BOX] = A_BOLD,
       [CHECK_MARK] = A_NORMAL,
       [CHECK_TEXT] = A_NORMAL,
@@ -275,12 +244,23 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [CPU_NICE] = A_NORMAL,
       [CPU_NICE_TEXT] = A_NORMAL,
       [CPU_NORMAL] = A_BOLD,
-      [CPU_KERNEL] = A_BOLD,
+      [CPU_SYSTEM] = A_BOLD,
       [CPU_IOWAIT] = A_NORMAL,
       [CPU_IRQ] = A_BOLD,
       [CPU_SOFTIRQ] = A_BOLD,
-      [CPU_STEAL] = A_REVERSE,
-      [CPU_GUEST] = A_REVERSE,
+      [CPU_STEAL] = A_DIM,
+      [CPU_GUEST] = A_DIM,
+      [PRESSURE_STALL_THREEHUNDRED] = A_DIM,
+      [PRESSURE_STALL_SIXTY] = A_NORMAL,
+      [PRESSURE_STALL_TEN] = A_BOLD,
+      [ZFS_MFU] = A_NORMAL,
+      [ZFS_MRU] = A_NORMAL,
+      [ZFS_ANON] = A_DIM,
+      [ZFS_HEADER] = A_BOLD,
+      [ZFS_OTHER] = A_DIM,
+      [ZFS_COMPRESSED] = A_BOLD,
+      [ZFS_RATIO] = A_BOLD,
+      [ZRAM] = A_NORMAL,
    },
    [COLORSCHEME_BLACKONWHITE] = {
       [RESET_COLOR] = ColorPair(Black, White),
@@ -293,25 +273,37 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
       [PANEL_SELECTION_UNFOCUS] = ColorPair(Blue, White),
       [FAILED_SEARCH] = ColorPair(Red, Cyan),
+      [FAILED_READ] = ColorPair(Red, White),
+      [PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
       [UPTIME] = ColorPair(Yellow, White),
       [BATTERY] = ColorPair(Yellow, White),
       [LARGE_NUMBER] = ColorPair(Red, White),
       [METER_TEXT] = ColorPair(Blue, White),
       [METER_VALUE] = ColorPair(Black, White),
+      [METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, White),
+      [METER_VALUE_IOREAD] = ColorPair(Green, White),
+      [METER_VALUE_IOWRITE] = ColorPair(Yellow, White),
+      [METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, White),
+      [METER_VALUE_OK] = ColorPair(Green, White),
       [LED_COLOR] = ColorPair(Green, White),
       [TASKS_RUNNING] = ColorPair(Green, White),
       [PROCESS] = ColorPair(Black, White),
       [PROCESS_SHADOW] = A_BOLD | ColorPair(Black, White),
       [PROCESS_TAG] = ColorPair(White, Blue),
       [PROCESS_MEGABYTES] = ColorPair(Blue, White),
+      [PROCESS_GIGABYTES] = ColorPair(Green, White),
       [PROCESS_BASENAME] = ColorPair(Blue, White),
       [PROCESS_TREE] = ColorPair(Green, White),
       [PROCESS_R_STATE] = ColorPair(Green, White),
       [PROCESS_D_STATE] = A_BOLD | ColorPair(Red, White),
       [PROCESS_HIGH_PRIORITY] = ColorPair(Red, White),
       [PROCESS_LOW_PRIORITY] = ColorPair(Green, White),
+      [PROCESS_NEW] = ColorPair(White, Green),
+      [PROCESS_TOMB] = ColorPair(White, Red),
       [PROCESS_THREAD] = ColorPair(Blue, White),
       [PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, White),
+      [PROCESS_COMM] = ColorPair(Magenta, White),
+      [PROCESS_THREAD_COMM] = ColorPair(Green, White),
       [BAR_BORDER] = ColorPair(Blue, White),
       [BAR_SHADOW] = ColorPair(Black, White),
       [SWAP] = ColorPair(Red, White),
@@ -327,6 +319,8 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [LOAD] = ColorPair(Black, White),
       [HELP_BOLD] = ColorPair(Blue, White),
       [CLOCK] = ColorPair(Black, White),
+      [DATE] = ColorPair(Black, White),
+      [DATETIME] = ColorPair(Black, White),
       [CHECK_BOX] = ColorPair(Blue, White),
       [CHECK_MARK] = ColorPair(Black, White),
       [CHECK_TEXT] = ColorPair(Black, White),
@@ -334,45 +328,68 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [CPU_NICE] = ColorPair(Cyan, White),
       [CPU_NICE_TEXT] = ColorPair(Cyan, White),
       [CPU_NORMAL] = ColorPair(Green, White),
-      [CPU_KERNEL] = ColorPair(Red,White),
+      [CPU_SYSTEM] = ColorPair(Red, White),
       [CPU_IOWAIT] = A_BOLD | ColorPair(Black, White),
       [CPU_IRQ] = ColorPair(Blue, White),
       [CPU_SOFTIRQ] = ColorPair(Blue, White),
       [CPU_STEAL] = ColorPair(Cyan, White),
       [CPU_GUEST] = ColorPair(Cyan, White),
+      [PRESSURE_STALL_THREEHUNDRED] = ColorPair(Black, White),
+      [PRESSURE_STALL_SIXTY] = ColorPair(Black, White),
+      [PRESSURE_STALL_TEN] = ColorPair(Black, White),
+      [ZFS_MFU] = ColorPair(Cyan, White),
+      [ZFS_MRU] = ColorPair(Yellow, White),
+      [ZFS_ANON] = ColorPair(Magenta, White),
+      [ZFS_HEADER] = ColorPair(Yellow, White),
+      [ZFS_OTHER] = ColorPair(Magenta, White),
+      [ZFS_COMPRESSED] = ColorPair(Cyan, White),
+      [ZFS_RATIO] = ColorPair(Magenta, White),
+      [ZRAM] = ColorPair(Yellow, White)
    },
    [COLORSCHEME_LIGHTTERMINAL] = {
-      [RESET_COLOR] = ColorPair(Black,Black),
-      [DEFAULT_COLOR] = ColorPair(Black,Black),
+      [RESET_COLOR] = ColorPair(Blue, Black),
+      [DEFAULT_COLOR] = ColorPair(Blue, Black),
       [FUNCTION_BAR] = ColorPair(Black, Cyan),
-      [FUNCTION_KEY] = ColorPair(Black,Black),
+      [FUNCTION_KEY] = ColorPair(Blue, Black),
       [PANEL_HEADER_FOCUS] = ColorPair(Black, Green),
       [PANEL_HEADER_UNFOCUS] = ColorPair(Black, Green),
       [PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
       [PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
       [PANEL_SELECTION_UNFOCUS] = ColorPair(Blue, Black),
       [FAILED_SEARCH] = ColorPair(Red, Cyan),
+      [FAILED_READ] = ColorPair(Red, Black),
+      [PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
       [UPTIME] = ColorPair(Yellow, Black),
       [BATTERY] = ColorPair(Yellow, Black),
       [LARGE_NUMBER] = ColorPair(Red, Black),
       [METER_TEXT] = ColorPair(Blue, Black),
-      [METER_VALUE] = ColorPair(Black,Black),
+      [METER_VALUE] = ColorPair(Blue, Black),
+      [METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
+      [METER_VALUE_IOREAD] = ColorPair(Green, Black),
+      [METER_VALUE_IOWRITE] = ColorPair(Yellow, Black),
+      [METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, Black),
+      [METER_VALUE_OK] = ColorPair(Green, Black),
       [LED_COLOR] = ColorPair(Green, Black),
       [TASKS_RUNNING] = ColorPair(Green, Black),
-      [PROCESS] = ColorPair(Black,Black),
-      [PROCESS_SHADOW] = A_BOLD | ColorPair(Black,Black),
-      [PROCESS_TAG] = ColorPair(White,Blue),
+      [PROCESS] = ColorPair(Blue, Black),
+      [PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
+      [PROCESS_TAG] = ColorPair(Yellow, Blue),
       [PROCESS_MEGABYTES] = ColorPair(Blue, Black),
+      [PROCESS_GIGABYTES] = ColorPair(Green, Black),
       [PROCESS_BASENAME] = ColorPair(Green, Black),
       [PROCESS_TREE] = ColorPair(Blue, Black),
       [PROCESS_R_STATE] = ColorPair(Green, Black),
       [PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
       [PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
       [PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
+      [PROCESS_NEW] = ColorPair(Black, Green),
+      [PROCESS_TOMB] = ColorPair(Black, Red),
       [PROCESS_THREAD] = ColorPair(Blue, Black),
       [PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, Black),
+      [PROCESS_COMM] = ColorPair(Magenta, Black),
+      [PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
       [BAR_BORDER] = ColorPair(Blue, Black),
-      [BAR_SHADOW] = ColorPair(Black,Black),
+      [BAR_SHADOW] = ColorPairGrayBlack,
       [SWAP] = ColorPair(Red, Black),
       [GRAPH_1] = A_BOLD | ColorPair(Cyan, Black),
       [GRAPH_2] = ColorPair(Cyan, Black),
@@ -380,25 +397,38 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [MEMORY_BUFFERS] = ColorPair(Cyan, Black),
       [MEMORY_BUFFERS_TEXT] = ColorPair(Cyan, Black),
       [MEMORY_CACHE] = ColorPair(Yellow, Black),
-      [LOAD_AVERAGE_FIFTEEN] = ColorPair(Black,Black),
-      [LOAD_AVERAGE_FIVE] = ColorPair(Black,Black),
-      [LOAD_AVERAGE_ONE] = ColorPair(Black,Black),
-      [LOAD] = ColorPair(White,Black),
+      [LOAD_AVERAGE_FIFTEEN] = ColorPair(Blue, Black),
+      [LOAD_AVERAGE_FIVE] = ColorPair(Blue, Black),
+      [LOAD_AVERAGE_ONE] = ColorPair(Yellow, Black),
+      [LOAD] = ColorPair(Yellow, Black),
       [HELP_BOLD] = ColorPair(Blue, Black),
-      [CLOCK] = ColorPair(White,Black),
+      [CLOCK] = ColorPair(Yellow, Black),
+      [DATE] = ColorPair(White, Black),
+      [DATETIME] = ColorPair(White, Black),
       [CHECK_BOX] = ColorPair(Blue, Black),
-      [CHECK_MARK] = ColorPair(Black,Black),
-      [CHECK_TEXT] = ColorPair(Black,Black),
-      [HOSTNAME] = ColorPair(White,Black),
+      [CHECK_MARK] = ColorPair(Blue, Black),
+      [CHECK_TEXT] = ColorPair(Blue, Black),
+      [HOSTNAME] = ColorPair(Yellow, Black),
       [CPU_NICE] = ColorPair(Cyan, Black),
       [CPU_NICE_TEXT] = ColorPair(Cyan, Black),
       [CPU_NORMAL] = ColorPair(Green, Black),
-      [CPU_KERNEL] = ColorPair(Red,Black),
-      [CPU_IOWAIT] = A_BOLD | ColorPair(Black, Black),
+      [CPU_SYSTEM] = ColorPair(Red, Black),
+      [CPU_IOWAIT] = A_BOLD | ColorPair(Blue, Black),
       [CPU_IRQ] = A_BOLD | ColorPair(Blue, Black),
       [CPU_SOFTIRQ] = ColorPair(Blue, Black),
-      [CPU_STEAL] = ColorPair(Black,Black),
-      [CPU_GUEST] = ColorPair(Black,Black),
+      [CPU_STEAL] = ColorPair(Blue, Black),
+      [CPU_GUEST] = ColorPair(Blue, Black),
+      [PRESSURE_STALL_THREEHUNDRED] = ColorPair(Blue, Black),
+      [PRESSURE_STALL_SIXTY] = ColorPair(Blue, Black),
+      [PRESSURE_STALL_TEN] = ColorPair(Blue, Black),
+      [ZFS_MFU] = ColorPair(Cyan, Black),
+      [ZFS_MRU] = ColorPair(Yellow, Black),
+      [ZFS_ANON] = A_BOLD | ColorPair(Magenta, Black),
+      [ZFS_HEADER] = ColorPair(Blue, Black),
+      [ZFS_OTHER] = A_BOLD | ColorPair(Magenta, Black),
+      [ZFS_COMPRESSED] = ColorPair(Cyan, Black),
+      [ZFS_RATIO] = A_BOLD | ColorPair(Magenta, Black),
+      [ZRAM] = ColorPair(Yellow, Black),
    },
    [COLORSCHEME_MIDNIGHT] = {
       [RESET_COLOR] = ColorPair(White, Blue),
@@ -411,25 +441,37 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
       [PANEL_SELECTION_UNFOCUS] = A_BOLD | ColorPair(Yellow, Blue),
       [FAILED_SEARCH] = ColorPair(Red, Cyan),
+      [FAILED_READ] = A_BOLD | ColorPair(Red, Blue),
+      [PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
       [UPTIME] = A_BOLD | ColorPair(Yellow, Blue),
       [BATTERY] = A_BOLD | ColorPair(Yellow, Blue),
       [LARGE_NUMBER] = A_BOLD | ColorPair(Red, Blue),
       [METER_TEXT] = ColorPair(Cyan, Blue),
       [METER_VALUE] = A_BOLD | ColorPair(Cyan, Blue),
+      [METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Blue),
+      [METER_VALUE_IOREAD] = ColorPair(Green, Blue),
+      [METER_VALUE_IOWRITE] = ColorPair(Black, Blue),
+      [METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Blue),
+      [METER_VALUE_OK] = ColorPair(Green, Blue),
       [LED_COLOR] = ColorPair(Green, Blue),
       [TASKS_RUNNING] = A_BOLD | ColorPair(Green, Blue),
       [PROCESS] = ColorPair(White, Blue),
       [PROCESS_SHADOW] = A_BOLD | ColorPair(Black, Blue),
       [PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Blue),
       [PROCESS_MEGABYTES] = ColorPair(Cyan, Blue),
+      [PROCESS_GIGABYTES] = ColorPair(Green, Blue),
       [PROCESS_BASENAME] = A_BOLD | ColorPair(Cyan, Blue),
       [PROCESS_TREE] = ColorPair(Cyan, Blue),
       [PROCESS_R_STATE] = ColorPair(Green, Blue),
       [PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Blue),
       [PROCESS_HIGH_PRIORITY] = ColorPair(Red, Blue),
       [PROCESS_LOW_PRIORITY] = ColorPair(Green, Blue),
+      [PROCESS_NEW] = ColorPair(Blue, Green),
+      [PROCESS_TOMB] = ColorPair(Blue, Red),
       [PROCESS_THREAD] = ColorPair(Green, Blue),
       [PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Blue),
+      [PROCESS_COMM] = ColorPair(Magenta, Blue),
+      [PROCESS_THREAD_COMM] = ColorPair(Black, Blue),
       [BAR_BORDER] = A_BOLD | ColorPair(Yellow, Blue),
       [BAR_SHADOW] = ColorPair(Cyan, Blue),
       [SWAP] = ColorPair(Red, Blue),
@@ -445,6 +487,8 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [LOAD] = A_BOLD | ColorPair(White, Blue),
       [HELP_BOLD] = A_BOLD | ColorPair(Cyan, Blue),
       [CLOCK] = ColorPair(White, Blue),
+      [DATE] = ColorPair(White, Blue),
+      [DATETIME] = ColorPair(White, Blue),
       [CHECK_BOX] = ColorPair(Cyan, Blue),
       [CHECK_MARK] = A_BOLD | ColorPair(White, Blue),
       [CHECK_TEXT] = A_NORMAL | ColorPair(White, Blue),
@@ -452,12 +496,23 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [CPU_NICE] = A_BOLD | ColorPair(Cyan, Blue),
       [CPU_NICE_TEXT] = A_BOLD | ColorPair(Cyan, Blue),
       [CPU_NORMAL] = A_BOLD | ColorPair(Green, Blue),
-      [CPU_KERNEL] = A_BOLD | ColorPair(Red,Blue),
-      [CPU_IOWAIT] = A_BOLD | ColorPair(Blue,Blue),
+      [CPU_SYSTEM] = A_BOLD | ColorPair(Red, Blue),
+      [CPU_IOWAIT] = A_BOLD | ColorPair(Black, Blue),
       [CPU_IRQ] = A_BOLD | ColorPair(Black, Blue),
       [CPU_SOFTIRQ] = ColorPair(Black, Blue),
       [CPU_STEAL] = ColorPair(White, Blue),
       [CPU_GUEST] = ColorPair(White, Blue),
+      [PRESSURE_STALL_THREEHUNDRED] = A_BOLD | ColorPair(Black, Blue),
+      [PRESSURE_STALL_SIXTY] = A_NORMAL | ColorPair(White, Blue),
+      [PRESSURE_STALL_TEN] = A_BOLD | ColorPair(White, Blue),
+      [ZFS_MFU] = A_BOLD | ColorPair(White, Blue),
+      [ZFS_MRU] = A_BOLD | ColorPair(Yellow, Blue),
+      [ZFS_ANON] = A_BOLD | ColorPair(Magenta, Blue),
+      [ZFS_HEADER] = A_BOLD | ColorPair(Yellow, Blue),
+      [ZFS_OTHER] = A_BOLD | ColorPair(Magenta, Blue),
+      [ZFS_COMPRESSED] = A_BOLD | ColorPair(White, Blue),
+      [ZFS_RATIO] = A_BOLD | ColorPair(Magenta, Blue),
+      [ZRAM] = A_BOLD | ColorPair(Yellow, Blue),
    },
    [COLORSCHEME_BLACKNIGHT] = {
       [RESET_COLOR] = ColorPair(Cyan, Black),
@@ -469,26 +524,38 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
       [PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
       [PANEL_SELECTION_UNFOCUS] = ColorPair(Black, White),
-      [FAILED_SEARCH] = ColorPair(Red,Cyan),
+      [FAILED_SEARCH] = ColorPair(Red, Green),
+      [FAILED_READ] = A_BOLD | ColorPair(Red, Black),
+      [PAUSED] = A_BOLD | ColorPair(Yellow, Green),
       [UPTIME] = ColorPair(Green, Black),
       [BATTERY] = ColorPair(Green, Black),
       [LARGE_NUMBER] = A_BOLD | ColorPair(Red, Black),
       [METER_TEXT] = ColorPair(Cyan, Black),
       [METER_VALUE] = ColorPair(Green, Black),
+      [METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
+      [METER_VALUE_IOREAD] = ColorPair(Green, Black),
+      [METER_VALUE_IOWRITE] = ColorPair(Blue, Black),
+      [METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, Black),
+      [METER_VALUE_OK] = ColorPair(Green, Black),
       [LED_COLOR] = ColorPair(Green, Black),
       [TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
       [PROCESS] = ColorPair(Cyan, Black),
-      [PROCESS_SHADOW] = A_BOLD | ColorPair(Black,Black),
+      [PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
       [PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Black),
       [PROCESS_MEGABYTES] = A_BOLD | ColorPair(Green, Black),
+      [PROCESS_GIGABYTES] = A_BOLD | ColorPair(Yellow, Black),
       [PROCESS_BASENAME] = A_BOLD | ColorPair(Green, Black),
       [PROCESS_TREE] = ColorPair(Cyan, Black),
       [PROCESS_THREAD] = ColorPair(Green, Black),
       [PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, Black),
+      [PROCESS_COMM] = ColorPair(Magenta, Black),
+      [PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
       [PROCESS_R_STATE] = ColorPair(Green, Black),
       [PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
       [PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
       [PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
+      [PROCESS_NEW] = ColorPair(Black, Green),
+      [PROCESS_TOMB] = ColorPair(Black, Red),
       [BAR_BORDER] = A_BOLD | ColorPair(Green, Black),
       [BAR_SHADOW] = ColorPair(Cyan, Black),
       [SWAP] = ColorPair(Red, Black),
@@ -511,12 +578,23 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
       [CPU_NICE] = ColorPair(Blue, Black),
       [CPU_NICE_TEXT] = A_BOLD | ColorPair(Blue, Black),
       [CPU_NORMAL] = ColorPair(Green, Black),
-      [CPU_KERNEL] = ColorPair(Red,Black),
+      [CPU_SYSTEM] = ColorPair(Red, Black),
       [CPU_IOWAIT] = ColorPair(Yellow, Black),
       [CPU_IRQ] = A_BOLD | ColorPair(Blue, Black),
       [CPU_SOFTIRQ] = ColorPair(Blue, Black),
       [CPU_STEAL] = ColorPair(Cyan, Black),
       [CPU_GUEST] = ColorPair(Cyan, Black),
+      [PRESSURE_STALL_THREEHUNDRED] = ColorPair(Green, Black),
+      [PRESSURE_STALL_SIXTY] = ColorPair(Green, Black),
+      [PRESSURE_STALL_TEN] = A_BOLD | ColorPair(Green, Black),
+      [ZFS_MFU] = ColorPair(Blue, Black),
+      [ZFS_MRU] = ColorPair(Yellow, Black),
+      [ZFS_ANON] = ColorPair(Magenta, Black),
+      [ZFS_HEADER] = ColorPair(Yellow, Black),
+      [ZFS_OTHER] = ColorPair(Magenta, Black),
+      [ZFS_COMPRESSED] = ColorPair(Blue, Black),
+      [ZFS_RATIO] = ColorPair(Magenta, Black),
+      [ZRAM] = ColorPair(Yellow, Black),
    },
    [COLORSCHEME_BROKENGRAY] = { 0 } // dynamically generated.
 };
@@ -527,55 +605,86 @@ int CRT_scrollHAmount = 5;
 
 int CRT_scrollWheelVAmount = 10;
 
-char* CRT_termType;
-
-// TODO move color scheme to Settings, perhaps?
+const char* CRT_termType;
 
 int CRT_colorScheme = 0;
 
-void *backtraceArray[128];
+long CRT_pageSize = -1;
+long CRT_pageSizeKB = -1;
 
+ATTR_NORETURN
 static void CRT_handleSIGTERM(int sgn) {
    (void) sgn;
    CRT_done();
    exit(0);
 }
 
+#ifdef HAVE_SETUID_ENABLED
+
+static int CRT_euid = -1;
+
+static int CRT_egid = -1;
+
+void CRT_dropPrivileges() {
+   CRT_egid = getegid();
+   CRT_euid = geteuid();
+   if (setegid(getgid()) == -1) {
+      CRT_fatalError("Fatal error: failed dropping group privileges");
+   }
+   if (seteuid(getuid()) == -1) {
+      CRT_fatalError("Fatal error: failed dropping user privileges");
+   }
+}
+
+void CRT_restorePrivileges() {
+   if (CRT_egid == -1 || CRT_euid == -1) {
+      CRT_fatalError("Fatal error: internal inconsistency");
+   }
+   if (setegid(CRT_egid) == -1) {
+      CRT_fatalError("Fatal error: failed restoring group privileges");
+   }
+   if (seteuid(CRT_euid) == -1) {
+      CRT_fatalError("Fatal error: failed restoring user privileges");
+   }
+}
+
+#endif /* HAVE_SETUID_ENABLED */
+
+static struct sigaction old_sig_handler[32];
+
 // TODO: pass an instance of Settings instead.
 
-void CRT_init(int delay, int colorScheme) {
+void CRT_init(const int* delay, int colorScheme, bool allowUnicode) {
    initscr();
    noecho();
    CRT_delay = delay;
-   if (CRT_delay == 0) {
-      CRT_delay = 1;
-   }
    CRT_colors = CRT_colorSchemes[colorScheme];
    CRT_colorScheme = colorScheme;
 
    for (int i = 0; i < LAST_COLORELEMENT; i++) {
       unsigned int color = CRT_colorSchemes[COLORSCHEME_DEFAULT][i];
-      CRT_colorSchemes[COLORSCHEME_BROKENGRAY][i] = color == (A_BOLD | ColorPair(Black,Black)) ? ColorPair(White,Black) : color;
+      CRT_colorSchemes[COLORSCHEME_BROKENGRAY][i] = color == (A_BOLD | ColorPairGrayBlack) ? ColorPair(White, Black) : color;
    }
 
-   halfdelay(CRT_delay);
+   halfdelay(*CRT_delay);
    nonl();
    intrflush(stdscr, false);
    keypad(stdscr, true);
    mouseinterval(0);
    curs_set(0);
+
    if (has_colors()) {
       start_color();
-      CRT_hasColors = true;
-   } else {
-      CRT_hasColors = false;
    }
+
    CRT_termType = getenv("TERM");
-   if (String_eq(CRT_termType, "linux"))
+   if (String_eq(CRT_termType, "linux")) {
       CRT_scrollHAmount = 20;
-   else
+   } else {
       CRT_scrollHAmount = 5;
-   if (String_eq(CRT_termType, "xterm") || String_eq(CRT_termType, "xterm-color") || String_eq(CRT_termType, "vt220")) {
+   }
+
+   if (String_startsWith(CRT_termType, "xterm") || String_eq(CRT_termType, "vt220")) {
       define_key("\033[H", KEY_HOME);
       define_key("\033[F", KEY_END);
       define_key("\033[7~", KEY_HOME);
@@ -595,24 +704,35 @@ void CRT_init(int delay, int colorScheme) {
          define_key(sequence, KEY_ALT('A' + (c - 'a')));
       }
    }
-#ifndef DEBUG
-   signal(11, CRT_handleSIGSEGV);
-#endif
+
+   struct sigaction act;
+   sigemptyset (&act.sa_mask);
+   act.sa_flags = (int)SA_RESETHAND | SA_NODEFER;
+   act.sa_handler = CRT_handleSIGSEGV;
+   sigaction (SIGSEGV, &act, &old_sig_handler[SIGSEGV]);
+   sigaction (SIGFPE, &act, &old_sig_handler[SIGFPE]);
+   sigaction (SIGILL, &act, &old_sig_handler[SIGILL]);
+   sigaction (SIGBUS, &act, &old_sig_handler[SIGBUS]);
+   sigaction (SIGPIPE, &act, &old_sig_handler[SIGPIPE]);
+   sigaction (SIGSYS, &act, &old_sig_handler[SIGSYS]);
+   sigaction (SIGABRT, &act, &old_sig_handler[SIGABRT]);
+
    signal(SIGTERM, CRT_handleSIGTERM);
    signal(SIGQUIT, CRT_handleSIGTERM);
+
    use_default_colors();
    if (!has_colors())
-      CRT_colorScheme = 1;
+      CRT_colorScheme = COLORSCHEME_MONOCHROME;
    CRT_setColors(CRT_colorScheme);
 
-   /* initialize locale */
-   setlocale(LC_CTYPE, "");
-
 #ifdef HAVE_LIBNCURSESW
-   if(strcmp(nl_langinfo(CODESET), "UTF-8") == 0)
+   if (allowUnicode && String_eq(nl_langinfo(CODESET), "UTF-8")) {
       CRT_utf8 = true;
-   else
+   } else {
       CRT_utf8 = false;
+   }
+#else
+   (void) allowUnicode;
 #endif
 
    CRT_treeStr =
@@ -627,6 +747,12 @@ void CRT_init(int delay, int colorScheme) {
    mousemask(BUTTON1_RELEASED, NULL);
 #endif
 
+   CRT_pageSize = sysconf(_SC_PAGESIZE);
+   if (CRT_pageSize == -1)
+      CRT_fatalError("Fatal error: Can not get PAGE_SIZE by sysconf(_SC_PAGESIZE)");
+   CRT_pageSizeKB = CRT_pageSize / 1024;
+
+   CRT_degreeSign = initDegreeSign();
 }
 
 void CRT_done() {
@@ -646,7 +772,7 @@ int CRT_readKey() {
    cbreak();
    nodelay(stdscr, FALSE);
    int ret = getch();
-   halfdelay(CRT_delay);
+   halfdelay(*CRT_delay);
    return ret;
 }
 
@@ -657,19 +783,117 @@ void CRT_disableDelay() {
 }
 
 void CRT_enableDelay() {
-   halfdelay(CRT_delay);
+   halfdelay(*CRT_delay);
 }
 
 void CRT_setColors(int colorScheme) {
    CRT_colorScheme = colorScheme;
-   if (colorScheme == COLORSCHEME_BLACKNIGHT) {
-      for (int i = 0; i < 8; i++)
-         for (int j = 0; j < 8; j++)
-            init_pair((7-i)*8+j, i, j);
-   } else {
-      for (int i = 0; i < 8; i++) 
-         for (int j = 0; j < 8; j++)
-            init_pair((7-i)*8+j, i, (j==0?-1:j));
+
+   for (int i = 0; i < 8; i++) {
+      for (int j = 0; j < 8; j++) {
+         if (ColorIndex(i, j) != ColorIndexGrayBlack) {
+            int bg = (colorScheme != COLORSCHEME_BLACKNIGHT)
+                     ? (j == 0 ? -1 : j)
+                     : j;
+            init_pair(ColorIndex(i, j), i, bg);
          }
+      }
+   }
+
+   int grayBlackFg = COLORS > 8 ? 8 : 0;
+   int grayBlackBg = (colorScheme != COLORSCHEME_BLACKNIGHT)
+                     ? -1
+                     : 0;
+   init_pair(ColorIndexGrayBlack, grayBlackFg, grayBlackBg);
+
    CRT_colors = CRT_colorSchemes[colorScheme];
 }
+
+void CRT_handleSIGSEGV(int signal) {
+   CRT_done();
+
+   fprintf(stderr, "\n\n"
+      "FATAL PROGRAM ERROR DETECTED\n"
+      "============================\n"
+      "Please check at https://htop.dev/issues whether this issue has already been reported.\n"
+      "If no similar issue has been reported before, please create a new issue with the following information:\n"
+      "\n"
+      "- Your htop version (htop --version)\n"
+      "- Your OS and kernel version (uname -a)\n"
+      "- Your distribution and release (lsb_release -a)\n"
+      "- Likely steps to reproduce (How did it happened?)\n"
+#ifdef HAVE_EXECINFO_H
+      "- Backtrace of the issue (see below)\n"
+#endif
+      "\n"
+   );
+
+   const char* signal_str = strsignal(signal);
+   if (!signal_str) {
+      signal_str = "unknown reason";
+   }
+   fprintf(stderr,
+      "Error information:\n"
+      "------------------\n"
+      "A signal %d (%s) was received.\n"
+      "\n",
+      signal, signal_str
+   );
+
+#ifdef HAVE_EXECINFO_H
+   fprintf(stderr,
+      "Backtrace information:\n"
+      "----------------------\n"
+      "The following function calls were active when the issue was detected:\n"
+      "---\n"
+   );
+
+   void *backtraceArray[256];
+
+   size_t size = backtrace(backtraceArray, ARRAYSIZE(backtraceArray));
+   backtrace_symbols_fd(backtraceArray, size, 2);
+   fprintf(stderr,
+      "---\n"
+      "\n"
+      "To make the above information more practical to work with,\n"
+      "you should provide a disassembly of your binary.\n"
+      "This can usually be done by running the following command:\n"
+      "\n"
+#ifdef HTOP_DARWIN
+      "   otool -tvV `which htop` > ~/htop.otool\n"
+#else
+      "   objdump -d -S -w `which htop` > ~/htop.objdump\n"
+#endif
+      "\n"
+      "Please include the generated file in your report.\n"
+      "\n"
+   );
+#endif
+
+   fprintf(stderr,
+      "Running this program with debug symbols or inside a debugger may provide further insights.\n"
+      "\n"
+      "Thank you for helping to improve htop!\n"
+      "\n"
+      "htop " VERSION " aborting.\n"
+      "\n"
+   );
+
+   /* Call old sigsegv handler; may be default exit or third party one (e.g. ASAN) */
+   if (sigaction (signal, &old_sig_handler[signal], NULL) < 0) {
+      /* This avoids an infinite loop in case the handler could not be reset. */
+      fprintf(stderr,
+         "!!! Chained handler could not be restored. Forcing exit.\n"
+      );
+      _exit(1);
+   }
+
+   /* Trigger the previous signal handler. */
+   raise(signal);
+
+   // Always terminate, even if installed handler returns
+   fprintf(stderr,
+      "!!! Chained handler did not exit. Forcing exit.\n"
+   );
+   _exit(1);
+}

CRT.h

@@ -1,33 +1,20 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_CRT
 #define HEADER_CRT
 /*
 htop - CRT.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#define ColorPair(i,j) COLOR_PAIR((7-i)*8+j)
-
-#define Black COLOR_BLACK
-#define Red COLOR_RED
-#define Green COLOR_GREEN
-#define Yellow COLOR_YELLOW
-#define Blue COLOR_BLUE
-#define Magenta COLOR_MAGENTA
-#define Cyan COLOR_CYAN
-#define White COLOR_WHITE
-
-#define KEY_WHEELUP KEY_F(20)
-#define KEY_WHEELDOWN KEY_F(21)
-#define KEY_RECLICK KEY_F(22)
-
-//#link curses
+#include "config.h"
 
 #include <stdbool.h>
 
+#include "Macros.h"
+#include "ProvideCurses.h"
+
+
 typedef enum TreeStr_ {
    TREE_STR_HORZ,
    TREE_STR_VERT,
@@ -41,13 +28,13 @@ typedef enum TreeStr_ {
 
 typedef enum ColorSchemes_ {
    COLORSCHEME_DEFAULT = 0,
-   COLORSCHEME_MONOCHROME = 1,
-   COLORSCHEME_BLACKONWHITE = 2,
-   COLORSCHEME_LIGHTTERMINAL = 3,
-   COLORSCHEME_MIDNIGHT = 4,
-   COLORSCHEME_BLACKNIGHT = 5,
-   COLORSCHEME_BROKENGRAY = 6,
-   LAST_COLORSCHEME = 7,
+   COLORSCHEME_MONOCHROME,
+   COLORSCHEME_BLACKONWHITE,
+   COLORSCHEME_LIGHTTERMINAL,
+   COLORSCHEME_MIDNIGHT,
+   COLORSCHEME_BLACKNIGHT,
+   COLORSCHEME_BROKENGRAY,
+   LAST_COLORSCHEME,
 } ColorSchemes;
 
 typedef enum ColorElements_ {
@@ -56,6 +43,8 @@ typedef enum ColorElements_ {
    FUNCTION_BAR,
    FUNCTION_KEY,
    FAILED_SEARCH,
+   FAILED_READ,
+   PAUSED,
    PANEL_HEADER_FOCUS,
    PANEL_HEADER_UNFOCUS,
    PANEL_SELECTION_FOCUS,
@@ -64,6 +53,11 @@ typedef enum ColorElements_ {
    LARGE_NUMBER,
    METER_TEXT,
    METER_VALUE,
+   METER_VALUE_ERROR,
+   METER_VALUE_IOREAD,
+   METER_VALUE_IOWRITE,
+   METER_VALUE_NOTICE,
+   METER_VALUE_OK,
    LED_COLOR,
    UPTIME,
    BATTERY,
@@ -73,14 +67,19 @@ typedef enum ColorElements_ {
    PROCESS_SHADOW,
    PROCESS_TAG,
    PROCESS_MEGABYTES,
+   PROCESS_GIGABYTES,
    PROCESS_TREE,
    PROCESS_R_STATE,
    PROCESS_D_STATE,
    PROCESS_BASENAME,
    PROCESS_HIGH_PRIORITY,
    PROCESS_LOW_PRIORITY,
+   PROCESS_NEW,
+   PROCESS_TOMB,
    PROCESS_THREAD,
    PROCESS_THREAD_BASENAME,
+   PROCESS_COMM,
+   PROCESS_THREAD_COMM,
    BAR_BORDER,
    BAR_SHADOW,
    GRAPH_1,
@@ -97,42 +96,53 @@ typedef enum ColorElements_ {
    CHECK_MARK,
    CHECK_TEXT,
    CLOCK,
+   DATE,
+   DATETIME,
    HELP_BOLD,
    HOSTNAME,
    CPU_NICE,
    CPU_NICE_TEXT,
    CPU_NORMAL,
-   CPU_KERNEL,
+   CPU_SYSTEM,
    CPU_IOWAIT,
    CPU_IRQ,
    CPU_SOFTIRQ,
    CPU_STEAL,
    CPU_GUEST,
+   PRESSURE_STALL_TEN,
+   PRESSURE_STALL_SIXTY,
+   PRESSURE_STALL_THREEHUNDRED,
+   ZFS_MFU,
+   ZFS_MRU,
+   ZFS_ANON,
+   ZFS_HEADER,
+   ZFS_OTHER,
+   ZFS_COMPRESSED,
+   ZFS_RATIO,
+   ZRAM,
    LAST_COLORELEMENT
 } ColorElements;
 
-void CRT_fatalError(const char* note) __attribute__ ((noreturn));
+void CRT_fatalError(const char* note) ATTR_NORETURN;
 
-void CRT_handleSIGSEGV(int sgn);
+void CRT_handleSIGSEGV(int signal) ATTR_NORETURN;
 
-#define KEY_ALT(x) (KEY_F(64 - 26) + (x - 'A'))
+#define KEY_WHEELUP   KEY_F(20)
+#define KEY_WHEELDOWN KEY_F(21)
+#define KEY_RECLICK   KEY_F(22)
+#define KEY_ALT(x)    (KEY_F(64 - 26) + ((x) - 'A'))
 
-
-extern const char *CRT_treeStrAscii[TREE_STR_COUNT];
+extern const char* CRT_degreeSign;
 
 #ifdef HAVE_LIBNCURSESW
 
-extern const char *CRT_treeStrUtf8[TREE_STR_COUNT];
-
 extern bool CRT_utf8;
 
 #endif
 
-extern const char **CRT_treeStr;
+extern const char* const* CRT_treeStr;
 
-extern int CRT_delay;
-
-int* CRT_colors;
+extern const int* CRT_colors;
 
 extern int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT];
 
@@ -142,27 +152,36 @@ extern int CRT_scrollHAmount;
 
 extern int CRT_scrollWheelVAmount;
 
-char* CRT_termType;
-
-// TODO move color scheme to Settings, perhaps?
+extern const char* CRT_termType;
 
 extern int CRT_colorScheme;
 
-void *backtraceArray[128];
+extern long CRT_pageSize;
+extern long CRT_pageSizeKB;
 
-// TODO: pass an instance of Settings instead.
+#ifdef HAVE_SETUID_ENABLED
 
-void CRT_init(int delay, int colorScheme);
+void CRT_dropPrivileges(void);
 
-void CRT_done();
+void CRT_restorePrivileges(void);
 
-void CRT_fatalError(const char* note);
+#else /* HAVE_SETUID_ENABLED */
 
-int CRT_readKey();
+/* Turn setuid operations into NOPs */
+static inline void CRT_dropPrivileges(void) { }
+static inline void CRT_restorePrivileges(void) { }
 
-void CRT_disableDelay();
+#endif /* HAVE_SETUID_ENABLED */
 
-void CRT_enableDelay();
+void CRT_init(const int* delay, int colorScheme, bool allowUnicode);
+
+void CRT_done(void);
+
+int CRT_readKey(void);
+
+void CRT_disableDelay(void);
+
+void CRT_enableDelay(void);
 
 void CRT_setColors(int colorScheme);
 

CategoriesPanel.c

@@ -1,40 +1,30 @@
 /*
 htop - CategoriesPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "CategoriesPanel.h"
 
-#include "AvailableMetersPanel.h"
-#include "MetersPanel.h"
-#include "DisplayOptionsPanel.h"
-#include "ColumnsPanel.h"
-#include "ColorsPanel.h"
-#include "AvailableColumnsPanel.h"
-
-#include <assert.h>
+#include <ctype.h>
+#include <stdbool.h>
 #include <stdlib.h>
 
-/*{
-#include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
-#include "ProcessList.h"
+#include "AvailableColumnsPanel.h"
+#include "AvailableMetersPanel.h"
+#include "ColorsPanel.h"
+#include "ColumnsPanel.h"
+#include "DisplayOptionsPanel.h"
+#include "FunctionBar.h"
+#include "ListItem.h"
+#include "MetersPanel.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "Vector.h"
 
-typedef struct CategoriesPanel_ {
-   Panel super;
-   ScreenManager* scr;
 
-   Settings* settings;
-   Header* header;
-   ProcessList* pl;
-} CategoriesPanel;
-
-}*/
-
-static const char* CategoriesFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
+static const char* const CategoriesFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
 static void CategoriesPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
@@ -97,7 +87,7 @@ static HandlerResult CategoriesPanel_eventHandler(Panel* super, int ch) {
          break;
       }
       default:
-         if (ch < 255 && isalpha(ch))
+         if (0 < ch && ch < 255 && isgraph((unsigned char)ch))
             result = Panel_selectByTyping(super, ch);
          if (result == BREAK_LOOP)
             result = IGNORED;
@@ -107,6 +97,7 @@ static HandlerResult CategoriesPanel_eventHandler(Panel* super, int ch) {
       int size = ScreenManager_size(this->scr);
       for (int i = 1; i < size; i++)
          ScreenManager_remove(this->scr, 1);
+
       switch (selected) {
          case 0:
             CategoriesPanel_makeMetersPage(this);
@@ -125,7 +116,7 @@ static HandlerResult CategoriesPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass CategoriesPanel_class = {
+const PanelClass CategoriesPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = CategoriesPanel_delete

CategoriesPanel.h

@@ -1,18 +1,17 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_CategoriesPanel
 #define HEADER_CategoriesPanel
 /*
 htop - CategoriesPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "Header.h"
 #include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
 #include "ProcessList.h"
+#include "ScreenManager.h"
+#include "Settings.h"
 
 typedef struct CategoriesPanel_ {
    Panel super;
@@ -23,10 +22,9 @@ typedef struct CategoriesPanel_ {
    ProcessList* pl;
 } CategoriesPanel;
 
-
 void CategoriesPanel_makeMetersPage(CategoriesPanel* this);
 
-extern PanelClass CategoriesPanel_class;
+extern const PanelClass CategoriesPanel_class;
 
 CategoriesPanel* CategoriesPanel_new(ScreenManager* scr, Settings* settings, Header* header, ProcessList* pl);
 

ChangeLog

@@ -1,3 +1,228 @@
+What's new in version 3.0.3
+
+* Process sorting in 'tree' mode
+  (thanks to Maxim Zhiburt)
+* Improved command display/sort functionality
+  (thanks to Narendran Gopalakrishnan)
+* Add screen for active file locks
+* Calculate library size (M_LRS column) from maps file
+  (thanks to Fynn Wulf)
+* Add a Zram meter
+  (thanks to Murloc Knight)
+* Add Linux cwd process column
+* Dynamically load libsensors at runtime
+* Improve PressureStall Meter display strings
+* Hide process selection on ESC
+* Fully support non-ascii characters in Meter-Bar
+* Add support to change numeric options in settings screen
+* Rename virtual memory column from M_SIZE to M_VIRT
+* Add process column for normalized CPU usage
+* Show CPU temperature in CPU meter
+* Drop hideThreads Setting
+* Add a systemd meter
+* Add a network IO meter
+* Add a SELinux meter
+* Compress size of default FunctionBar
+* Updates to the OpenFiles screen
+* Continue updating header data in paused mode
+* BUGFIX: Handle data wraparounds in IO meters
+* BUGFIX: Update InfoScreen content on resize
+* Add security attribute process column
+* Add DiskIOMeter for IO read/write usage
+* Read CPU frequency from sysfs by default
+* Add Linux process column for context switches
+* Several FreeBSD and Mac OS X platform updates
+  (thanks to Christian Göttsche)
+* Add process environment for FreeBSD
+  (thanks to Ross Williams)
+* Parse POWER_SUPPLY_CAPACITY for Linux Battery meter
+  (thanks to Jan Palus)
+* Add octuple-column CPU meters.
+* BUGFIX: On Linux consider ZFS ARC to be cache
+  (thanks to @multi)
+* BUGFIX: Limit screen title length to window width
+* Show selected command wrapped in a separate window
+  (thanks to @ryenus)
+* Allow to pass '/' for item search
+* Document implicit incremental search
+* Handle 'q' as quit if first character
+* Avoid expensive build of process tree when not using it
+* Include documentation for COMM and EXE
+* Distinguish display of no permissions for reading M_LRS
+* Only calculate M_LRS size every 5 seconds
+* Improvements to comm / cmdline display functionality
+* Consistent kernel thread display for COMM/EXE columns
+* Central fault handling for all platforms
+* Handle parsing envID & VPid from process status file
+* Use threshold for display of guest/steal/irq meters
+* Enhance highlighting of semi-large and large numbers
+* Documentation on the repository style guide
+  (thanks to Benny Baumann)
+* Align processor identifier to the right
+  (thanks to Christian Hesse)
+* Document M_PSS, M_PSSWP, M_SWAP in man page
+* Add Date and DateTime meters
+  (thanks to Michael F. Schönitzer)
+* BUGFIX: Fix Solaris 11.4 due to missing ZFS ARC kstats
+  (thanks to @senjan)
+* Code hardening, speedups, fd and memory leak fixes
+  (thanks to Christian Göttsche and Benny Baumann)
+* Number CPUs from zero by default
+  (thanks to Zev Weiss)
+* Remove residual python checks during the build process
+  (thanks to Stephen Gregoratto)
+
+What's new in version 3.0.2
+
+* BUGFIX: Drop 'vim_mode' - several issues, needs rethink
+* BUGFIX: fix regression in -u optional-argument handling
+* Build system rework to remove python, header generation
+  (thanks to Zev Weiss and Hugo Musso Gualandi)
+* BUGFIX: report nice level correctly on Solaris
+  (thanks to Dominik Hassler)
+* CI, code quality improvements
+  (thanks to Tobias Kortkamp, Christian Hesse, Benny Baumann)
+
+What's new in version 3.0.1
+
+* Coverity fixes, CI improvements, documentation updates
+* BUGFIX: Fix early exit with longer sysfs battery paths
+* BUGFIX: Improve OOM output, fix sorting
+  (thanks to Christian Göttsche)
+* Rework check buttons and tree open/closed
+  (thanks to Bert Wesarg)
+* Add -U/--no-unicode option to disable unicode
+  (thanks to Christian Hesse)
+* Improvements to the affinity panel
+  (thanks to Bert Wesarg)
+
+What's new in version 3.0.0
+
+* New maintainers - after a prolonged period of inactivity
+  from Hisham, the creator and original maintainer, a team
+  of community maintainers have volunteered to take over a
+  fork at https://htop.dev and https://github.com/htop-dev
+  to keep the project going.
+* Support ZFS ARC statistics
+  (thanks to Ross Williams)
+* Support more than 2 smaller CPU meter columns
+  (thanks to Christoph Budziszewski)
+* Support Linux proportional set size metrics
+  (thanks to @linvinus, @ntninja and @himikof)
+* Support Linux pressure stall information metrics
+  (thanks to Ran Benita)
+* New display option to show CPU frequency in CPU meters
+  (thanks to Arnav Singh)
+* Update Linux sysfs battery discovery for recent kernels
+  (thanks to @smattie)
+* Add hardware topology information in the affinity panel
+  (thanks to Bert Wesarg)
+* Add timestamp reporting to the strace screen
+  (thanks to Mario Harjac)
+* Add simple, optional vim key mapping mode
+  (thanks to Daniel Flanagan)
+* Added an option to disable the mouse
+  (thanks to MartinJM)
+* Add Solaris11 compatibility
+  (thanks to Jan Senolt)
+* Without an argument -u uses $USER value automatically
+  (thanks to @solanav)
+* Support less(1) search navigation shortcuts
+  (thanks to @syrrim)
+* Update the FreeBSD maximum PID to match FreeBSD change
+  (thanks to @multiplexd)
+* Report values larger than 100 terabytes
+  (thanks to @adrien1018)
+* Widen ST_UID (UID) column to allow for UIDs > 9999
+  (thanks to DLange)
+* BUGFIX: fix makefiles for building with clang
+  (thanks to Jorge Pereira)
+* BUGFIX: fix <sys/sysmacros.h> major() usage
+  (thanks to @wataash and Kang-Che Sung)
+* BUGFIX: fix the STARTTIME column on FreeBSD
+  (thanks to Rob Crowston)
+* BUGFIX: truncate overwide jail names on FreeBSD
+  (thanks to Rob Crowston)
+* BUGFIX: fix reported memory values on FreeBSD
+  (thanks to Tobias Kortkamp)
+* BUGFIX: fix reported CPU meter values on OpenBSD
+  (thanks to @motet-a)
+* BUGFIX: correctly identify other types of zombie process
+  (thanks to @joder)
+* BUGFIX: improve follow-process handling in some situations
+  (thanks to @wangqr)
+* BUGFIX: fix custom meters reverting to unexpected setting
+  (thanks to @wangqr)
+* BUGFIX: close pipe after running lsof(1)
+  (thanks to Jesin)
+* BUGFIX: meters honour setting of counting CPUs from 0/1
+  (thanks to @rnsanchez)
+
+What's new in version 2.2.0
+
+* Solaris/Illumos/OpenIndiana support
+  (thanks to Guy M. Broome)
+* -t/--tree flag for starting in tree-view mode
+  (thanks to Daniel Flanagan)
+* macOS: detects High Sierra version to avoid OS bug
+  (thanks to Pierre Malhaire)
+* OpenBSD: read battery data
+  (thanks to @nerd972)
+* Various automake and build improvements
+  (thanks to Kang-Che Sung)
+* Check for pkg-config when building with --enable-delayacct
+  (thanks to @florian2833z for the report)
+* Avoid some bashisms in configure script
+  (thanks to Jesin)
+* Use CFLAGS from ncurses*-config if present
+  (thanks to Michael Klein)
+* Header generator supports non-UTF-8 environments
+  (thanks to @volkov-am)
+* Linux: changed detection of kernel threads
+* Collapse current subtree pressing Backspace
+* BUGFIX: fix behavior of SYSCR column
+  (thanks to Marc Kleine-Budde)
+* BUGFIX: obtain exit code of lsof correctly
+  (thanks to @wangqr)
+* BUGFIX: fix crash with particular keycodes
+  (thanks to Wellington Torrejais da Silva for the report)
+* BUGFIX: fix issue with small terminals
+  (thanks to Daniel Elf for the report)
+* BUGFIX: fix terminal color issues
+  (thanks to Kang-Che Sung for the report)
+* BUGFIX: preserve LDFLAGS when building
+  (thanks to Lance Frederickson for the report)
+* BUGFIX: fixed overflow for systems with >= 100 signals
+
+What's new in version 2.1.0
+
+* Linux: Delay accounting metrics
+  (thanks to André Carvalho)
+* DragonFlyBSD support
+  (thanks to Diederik de Groot)
+* Support for real-time signals
+  (thanks to Kang-Che Sung)
+* 'c' key now works with threads as well
+* Session column renamed from SESN to SID
+  (thanks to Kamyar Rasta)
+* Improved UI for meter style selection
+  (thanks to Kang-Che Sung)
+* Improved code for constructing process tree
+  (thanks to wangqr)
+* Compile-time option to disable setuid
+* Error checking of various standard library operations
+* Replacement of sprintf with snprintf
+  (thanks to Tomasz Kramkowski)
+* Linux: performance improvements in battery meter
+* Linux: update process TTY device
+* Linux: add support for sorting TASK_IDLE
+  (thanks to Vladimir Panteleev)
+* Linux: add upper-bound to running process counter
+  (thanks to Lucas Correia Villa Real)
+* BUGFIX: avoid crash when battery is removed
+  (thanks to Jan Chren)
+* BUGFIX: macOS: fix infinite loop in tree view
+  (thanks to Wataru Ashihara)
 
 What's new in version 2.0.2
 

CheckItem.c

@@ -1,80 +0,0 @@
-/*
-htop - CheckItem.c
-(C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
-in the source distribution for its full text.
-*/
-
-#include "CheckItem.h"
-
-#include "CRT.h"
-
-#include <assert.h>
-#include <stdlib.h>
-
-/*{
-#include "Object.h"
-
-typedef struct CheckItem_ {
-   Object super;
-   char* text;
-   bool* ref;
-   bool value;
-} CheckItem;
-
-}*/
-
-static void CheckItem_delete(Object* cast) {
-   CheckItem* this = (CheckItem*)cast;
-   assert (this != NULL);
-
-   free(this->text);
-   free(this);
-}
-
-static void CheckItem_display(Object* cast, RichString* out) {
-   CheckItem* this = (CheckItem*)cast;
-   assert (this != NULL);
-   RichString_write(out, CRT_colors[CHECK_BOX], "[");
-   if (CheckItem_get(this))
-      RichString_append(out, CRT_colors[CHECK_MARK], "x");
-   else
-      RichString_append(out, CRT_colors[CHECK_MARK], " ");
-   RichString_append(out, CRT_colors[CHECK_BOX], "] ");
-   RichString_append(out, CRT_colors[CHECK_TEXT], this->text);
-}
-
-ObjectClass CheckItem_class = {
-   .display = CheckItem_display,
-   .delete = CheckItem_delete
-};
-
-CheckItem* CheckItem_newByRef(char* text, bool* ref) {
-   CheckItem* this = AllocThis(CheckItem);
-   this->text = text;
-   this->value = false;
-   this->ref = ref;
-   return this;
-}
-
-CheckItem* CheckItem_newByVal(char* text, bool value) {
-   CheckItem* this = AllocThis(CheckItem);
-   this->text = text;
-   this->value = value;
-   this->ref = NULL;
-   return this;
-}
-
-void CheckItem_set(CheckItem* this, bool value) {
-   if (this->ref) 
-      *(this->ref) = value;
-   else
-      this->value = value;
-}
-
-bool CheckItem_get(CheckItem* this) {
-   if (this->ref) 
-      return *(this->ref);
-   else
-      return this->value;
-}

CheckItem.h

@@ -1,32 +0,0 @@
-/* Do not edit this file. It was automatically generated. */
-
-#ifndef HEADER_CheckItem
-#define HEADER_CheckItem
-/*
-htop - CheckItem.h
-(C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
-in the source distribution for its full text.
-*/
-
-#include "Object.h"
-
-typedef struct CheckItem_ {
-   Object super;
-   char* text;
-   bool* ref;
-   bool value;
-} CheckItem;
-
-
-extern ObjectClass CheckItem_class;
-
-CheckItem* CheckItem_newByRef(char* text, bool* ref);
-
-CheckItem* CheckItem_newByVal(char* text, bool value);
-
-void CheckItem_set(CheckItem* this, bool value);
-
-bool CheckItem_get(CheckItem* this);
-
-#endif

ClockMeter.c

@@ -1,21 +1,21 @@
 /*
 htop - ClockMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "ClockMeter.h"
+#include "config.h" // IWYU pragma: keep
 
-#include "CRT.h"
+#include "ClockMeter.h"
 
 #include <time.h>
 
-/*{
-#include "Meter.h"
-}*/
+#include "CRT.h"
+#include "Object.h"
 
-int ClockMeter_attributes[] = {
+
+static const int ClockMeter_attributes[] = {
    CLOCK
 };
 
@@ -27,7 +27,7 @@ static void ClockMeter_updateValues(Meter* this, char* buffer, int size) {
    strftime(buffer, size, "%H:%M:%S", lt);
 }
 
-MeterClass ClockMeter_class = {
+const MeterClass ClockMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete

ClockMeter.h

@@ -1,18 +1,14 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ClockMeter
 #define HEADER_ClockMeter
 /*
 htop - ClockMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Meter.h"
 
-extern int ClockMeter_attributes[];
-
-extern MeterClass ClockMeter_class;
+extern const MeterClass ClockMeter_class;
 
 #endif

ColorsPanel.c

@@ -1,18 +1,25 @@
 /*
 htop - ColorsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "ColorsPanel.h"
 
-#include "CRT.h"
-#include "CheckItem.h"
-
-#include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
-#include <string.h>
+
+#include "CRT.h"
+#include "FunctionBar.h"
+#include "Header.h"
+#include "Object.h"
+#include "OptionItem.h"
+#include "ProvideCurses.h"
+#include "RichString.h"
+#include "Vector.h"
+#include "XUtils.h"
+
 
 // TO ADD A NEW SCHEME:
 // * Increment the size of bool check in ColorsPanel.h
@@ -20,23 +27,10 @@ in the source distribution for its full text.
 // * Add a define in CRT.h that matches the order of the array
 // * Add the colors in CRT_setColors
 
-/*{
-#include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
 
-typedef struct ColorsPanel_ {
-   Panel super;
+static const char* const ColorsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
-   Settings* settings;
-   ScreenManager* scr;
-} ColorsPanel;
-
-}*/
-
-static const char* ColorsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
-
-static const char* ColorSchemeNames[] = {
+static const char* const ColorSchemeNames[] = {
    "Default",
    "Monochromatic",
    "Black on White",
@@ -70,6 +64,7 @@ static HandlerResult ColorsPanel_eventHandler(Panel* super, int ch) {
       for (int i = 0; ColorSchemeNames[i] != NULL; i++)
          CheckItem_set((CheckItem*)Panel_get(super, i), false);
       CheckItem_set((CheckItem*)Panel_get(super, mark), true);
+
       this->settings->colorScheme = mark;
       result = HANDLED;
    }
@@ -78,8 +73,10 @@ static HandlerResult ColorsPanel_eventHandler(Panel* super, int ch) {
       this->settings->changed = true;
       const Header* header = this->scr->header;
       CRT_setColors(mark);
+      clear();
       Panel* menu = (Panel*) Vector_get(this->scr->panels, 0);
       Header_draw(header);
+      FunctionBar_draw(super->currentBar);
       RichString_setAttr(&(super->header), CRT_colors[PANEL_HEADER_FOCUS]);
       RichString_setAttr(&(menu->header), CRT_colors[PANEL_HEADER_UNFOCUS]);
       ScreenManager_resize(this->scr, this->scr->x1, header->height, this->scr->x2, this->scr->y2);
@@ -87,7 +84,7 @@ static HandlerResult ColorsPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass ColorsPanel_class = {
+const PanelClass ColorsPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = ColorsPanel_delete
@@ -106,7 +103,7 @@ ColorsPanel* ColorsPanel_new(Settings* settings, ScreenManager* scr) {
 
    Panel_setHeader(super, "Colors");
    for (int i = 0; ColorSchemeNames[i] != NULL; i++) {
-      Panel_add(super, (Object*) CheckItem_newByVal(xStrdup(ColorSchemeNames[i]), false));
+      Panel_add(super, (Object*) CheckItem_newByVal(ColorSchemeNames[i], false));
    }
    CheckItem_set((CheckItem*)Panel_get(super, settings->colorScheme), true);
    return this;

ColorsPanel.h

@@ -1,23 +1,15 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ColorsPanel
 #define HEADER_ColorsPanel
 /*
 htop - ColorsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-// TO ADD A NEW SCHEME:
-// * Increment the size of bool check in ColorsPanel.h
-// * Add the entry in the ColorSchemeNames array below in the file
-// * Add a define in CRT.h that matches the order of the array
-// * Add the colors in CRT_setColors
-
 #include "Panel.h"
-#include "Settings.h"
 #include "ScreenManager.h"
+#include "Settings.h"
 
 typedef struct ColorsPanel_ {
    Panel super;
@@ -26,8 +18,7 @@ typedef struct ColorsPanel_ {
    ScreenManager* scr;
 } ColorsPanel;
 
-
-extern PanelClass ColorsPanel_class;
+extern const PanelClass ColorsPanel_class;
 
 ColorsPanel* ColorsPanel_new(Settings* settings, ScreenManager* scr);
 

ColumnsPanel.c

@@ -1,35 +1,25 @@
 /*
 htop - ColumnsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "ColumnsPanel.h"
-#include "Platform.h"
 
-#include "StringUtils.h"
-#include "ListItem.h"
-#include "CRT.h"
-
-#include <assert.h>
-#include <stdlib.h>
 #include <ctype.h>
+#include <stdlib.h>
 
-/*{
-#include "Panel.h"
-#include "Settings.h"
+#include "CRT.h"
+#include "FunctionBar.h"
+#include "ListItem.h"
+#include "Object.h"
+#include "Process.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef struct ColumnsPanel_ {
-   Panel super;
 
-   Settings* settings;
-   bool moving;
-} ColumnsPanel;
-
-}*/
-
-static const char* ColumnsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "MoveUp", "MoveDn", "Remove", "Done  ", NULL};
+static const char* const ColumnsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "MoveUp", "MoveDn", "Remove", "Done  ", NULL};
 
 static void ColumnsPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
@@ -55,7 +45,9 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
          if (selected < size - 1) {
             this->moving = !(this->moving);
             Panel_setSelectionColor(super, this->moving ? CRT_colors[PANEL_SELECTION_FOLLOW] : CRT_colors[PANEL_SELECTION_FOCUS]);
-            ((ListItem*)Panel_getSelected(super))->moving = this->moving;
+            ListItem* selectedItem = (ListItem*) Panel_getSelected(super);
+            if (selectedItem)
+               selectedItem->moving = this->moving;
             result = HANDLED;
          }
          break;
@@ -65,8 +57,8 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
          if (!this->moving) {
             break;
          }
-         /* else fallthrough */
       }
+         /* else fallthrough */
       case KEY_F(7):
       case '[':
       case '-':
@@ -81,8 +73,8 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
          if (!this->moving) {
             break;
          }
-         /* else fallthrough */
       }
+         /* else fallthrough */
       case KEY_F(8):
       case ']':
       case '+':
@@ -103,7 +95,7 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
       }
       default:
       {
-         if (ch < 255 && isalpha(ch))
+         if (0 < ch && ch < 255 && isgraph((unsigned char)ch))
             result = Panel_selectByTyping(super, ch);
          if (result == BREAK_LOOP)
             result = IGNORED;
@@ -115,7 +107,7 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass ColumnsPanel_class = {
+const PanelClass ColumnsPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = ColumnsPanel_delete
@@ -142,15 +134,6 @@ ColumnsPanel* ColumnsPanel_new(Settings* settings) {
    return this;
 }
 
-int ColumnsPanel_fieldNameToIndex(const char* name) {
-   for (int j = 1; j <= Platform_numberOfFields; j++) {
-      if (String_eq(name, Process_fields[j].name)) {
-         return j;
-      }
-   }
-   return -1;
-}
-
 void ColumnsPanel_update(Panel* super) {
    ColumnsPanel* this = (ColumnsPanel*) super;
    int size = Panel_size(super);
@@ -164,4 +147,3 @@ void ColumnsPanel_update(Panel* super) {
    }
    this->settings->fields[size] = 0;
 }
-

ColumnsPanel.h

@@ -1,14 +1,14 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ColumnsPanel
 #define HEADER_ColumnsPanel
 /*
 htop - ColumnsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <stdbool.h>
+
 #include "Panel.h"
 #include "Settings.h"
 
@@ -19,14 +19,10 @@ typedef struct ColumnsPanel_ {
    bool moving;
 } ColumnsPanel;
 
-
-extern PanelClass ColumnsPanel_class;
+extern const PanelClass ColumnsPanel_class;
 
 ColumnsPanel* ColumnsPanel_new(Settings* settings);
 
-int ColumnsPanel_fieldNameToIndex(const char* name);
-
 void ColumnsPanel_update(Panel* super);
 
-
 #endif

CommandScreen.c

@@ -0,0 +1,68 @@
+#include "config.h" // IWYU pragma: keep
+
+#include "CommandScreen.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "Macros.h"
+#include "Panel.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
+
+
+static void CommandScreen_scan(InfoScreen* this) {
+   Panel* panel = this->display;
+   int idx = MAXIMUM(Panel_getSelectedIndex(panel), 0);
+   Panel_prune(panel);
+
+   const char* p = Process_getCommand(this->process);
+   char* line = xMalloc(COLS + 1);
+   int line_offset = 0, last_spc = -1, len;
+   for (; *p != '\0'; p++, line_offset++) {
+      line[line_offset] = *p;
+      if (*p == ' ') {
+         last_spc = line_offset;
+      }
+
+      if (line_offset == COLS) {
+         len = (last_spc == -1) ? line_offset : last_spc;
+         line[len] = '\0';
+         InfoScreen_addLine(this, line);
+
+         line_offset -= len;
+         last_spc = -1;
+         memcpy(line, p - line_offset, line_offset + 1);
+      }
+   }
+
+   if (line_offset > 0) {
+      line[line_offset] = '\0';
+      InfoScreen_addLine(this, line);
+   }
+
+   free(line);
+   Panel_setSelected(panel, idx);
+}
+
+static void CommandScreen_draw(InfoScreen* this) {
+   InfoScreen_drawTitled(this, "Command of process %d - %s", this->process->pid, Process_getCommand(this->process));
+}
+
+const InfoScreenClass CommandScreen_class = {
+   .super = {
+      .extends = Class(Object),
+      .delete = CommandScreen_delete
+   },
+   .scan = CommandScreen_scan,
+   .draw = CommandScreen_draw
+};
+
+CommandScreen* CommandScreen_new(Process* process) {
+   CommandScreen* this = AllocThis(CommandScreen);
+   return (CommandScreen*) InfoScreen_init(&this->super, process, NULL, LINES - 3, " ");
+}
+
+void CommandScreen_delete(Object* this) {
+   free(InfoScreen_done((InfoScreen*)this));
+}

CommandScreen.h

@@ -0,0 +1,19 @@
+#ifndef HEADER_CommandScreen
+#define HEADER_CommandScreen
+
+#include "InfoScreen.h"
+#include "Object.h"
+#include "Process.h"
+
+
+typedef struct CommandScreen_ {
+   InfoScreen super;
+} CommandScreen;
+
+extern const InfoScreenClass CommandScreen_class;
+
+CommandScreen* CommandScreen_new(Process* process);
+
+void CommandScreen_delete(Object* this);
+
+#endif

Compat.c

@@ -0,0 +1,119 @@
+/*
+htop - Compat.c
+(C) 2020 Christian Göttsche
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "Compat.h"
+
+#include <errno.h>
+#include <fcntl.h> // IWYU pragma: keep
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h> // IWYU pragma: keep
+
+#include "XUtils.h" // IWYU pragma: keep
+
+
+int Compat_faccessat(int dirfd,
+                     const char* pathname,
+                     int mode,
+                     int flags) {
+   int ret;
+
+#ifdef HAVE_FACCESSAT
+
+   // Implementation note: AT_SYMLINK_NOFOLLOW unsupported on FreeBSD, fallback to lstat in that case
+
+   errno = 0;
+
+   ret = faccessat(dirfd, pathname, mode, flags);
+   if (!ret || errno != EINVAL)
+      return ret;
+
+#endif
+
+   // Error out on unsupported configurations
+   if (dirfd != AT_FDCWD || mode != F_OK) {
+      errno = EINVAL;
+      return -1;
+   }
+
+   // Fallback to stat(2)/lstat(2) depending on flags
+   struct stat statinfo;
+   if(flags) {
+      ret = lstat(pathname, &statinfo);
+   } else {
+      ret = stat(pathname, &statinfo);
+   }
+
+   return ret;
+}
+
+int Compat_fstatat(int dirfd,
+                   const char* dirpath,
+                   const char* pathname,
+                   struct stat* statbuf,
+                   int flags) {
+
+#ifdef HAVE_FSTATAT
+
+   (void)dirpath;
+
+   return fstatat(dirfd, pathname, statbuf, flags);
+
+#else
+
+   (void)dirfd;
+
+   char path[4096];
+   xSnprintf(path, sizeof(path), "%s/%s", dirpath, pathname);
+
+   if (flags & AT_SYMLINK_NOFOLLOW)
+      return lstat(path, statbuf);
+
+   return stat(path, statbuf);
+
+#endif
+}
+
+#ifndef HAVE_OPENAT
+
+int Compat_openat(const char* dirpath,
+                  const char* pathname,
+                  int flags) {
+
+   char path[4096];
+   xSnprintf(path, sizeof(path), "%s/%s", dirpath, pathname);
+
+   return open(path, flags);
+}
+
+#endif /* !HAVE_OPENAT */
+
+int Compat_readlinkat(int dirfd,
+                      const char* dirpath,
+                      const char* pathname,
+                      char* buf,
+                      size_t bufsize) {
+
+#ifdef HAVE_READLINKAT
+
+   (void)dirpath;
+
+   return readlinkat(dirfd, pathname, buf, bufsize);
+
+#else
+
+   (void)dirfd;
+
+   char path[4096];
+   xSnprintf(path, sizeof(path), "%s/%s", dirpath, pathname);
+
+   return readlink(path, buf, bufsize);
+
+#endif
+}

Compat.h

@@ -0,0 +1,59 @@
+#ifndef HEADER_Compat
+#define HEADER_Compat
+/*
+htop - Compat.h
+(C) 2020 Christian Göttsche
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+int Compat_faccessat(int dirfd,
+                     const char* pathname,
+                     int mode,
+                     int flags);
+
+int Compat_fstatat(int dirfd,
+                   const char* dirpath,
+                   const char* pathname,
+                   struct stat* statbuf,
+                   int flags);
+
+#ifdef HAVE_OPENAT
+
+typedef int openat_arg_t;
+
+static inline void Compat_openatArgClose(openat_arg_t dirfd) {
+   close(dirfd);
+}
+
+static inline int Compat_openat(openat_arg_t dirfd, const char* pathname, int flags) {
+   return openat(dirfd, pathname, flags);
+}
+
+#else /* HAVE_OPENAT */
+
+typedef const char* openat_arg_t;
+
+static inline void Compat_openatArgClose(openat_arg_t dirpath) {
+   (void)dirpath;
+}
+
+int Compat_openat(openat_arg_t dirpath, const char* pathname, int flags);
+
+#endif /* HAVE_OPENAT */
+
+int Compat_readlinkat(int dirfd,
+                   const char* dirpath,
+                   const char* pathname,
+                   char* buf,
+                   size_t bufsize);
+
+#endif /* HEADER_Compat */

DateMeter.c

@@ -0,0 +1,50 @@
+/*
+htop - DateMeter.c
+(C) 2004-2020 Hisham H. Muhammad, Michael Schönitzer
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "DateMeter.h"
+
+#include <time.h>
+
+#include "CRT.h"
+#include "Object.h"
+
+
+static const int DateMeter_attributes[] = {
+   DATE
+};
+
+static void DateMeter_updateValues(Meter* this, char* buffer, int size) {
+   time_t t = time(NULL);
+   struct tm result;
+   struct tm* lt = localtime_r(&t, &result);
+   this->values[0] = lt->tm_yday;
+   int year = lt->tm_year + 1900;
+   if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {
+      this->total = 366;
+   }
+   else {
+      this->total = 365;
+   }
+   strftime(buffer, size, "%F", lt);
+}
+
+const MeterClass DateMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete
+   },
+   .updateValues = DateMeter_updateValues,
+   .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
+   .total = 365,
+   .attributes = DateMeter_attributes,
+   .name = "Date",
+   .uiName = "Date",
+   .caption = "Date: ",
+};

DateMeter.h

@@ -0,0 +1,14 @@
+#ifndef HEADER_DateMeter
+#define HEADER_DateMeter
+/*
+htop - DateMeter.h
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Meter.h"
+
+extern const MeterClass DateMeter_class;
+
+#endif

DateTimeMeter.c

@@ -0,0 +1,50 @@
+/*
+htop - DateTimeMeter.c
+(C) 2004-2020 Hisham H. Muhammad, Michael Schönitzer
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "DateTimeMeter.h"
+
+#include <time.h>
+
+#include "CRT.h"
+#include "Object.h"
+
+
+static const int DateTimeMeter_attributes[] = {
+   DATETIME
+};
+
+static void DateTimeMeter_updateValues(Meter* this, char* buffer, int size) {
+   time_t t = time(NULL);
+   struct tm result;
+   struct tm* lt = localtime_r(&t, &result);
+   int year = lt->tm_year + 1900;
+   if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {
+      this->total = 366;
+   }
+   else {
+      this->total = 365;
+   }
+   this->values[0] = lt->tm_yday;
+   strftime(buffer, size, "%F %H:%M:%S", lt);
+}
+
+const MeterClass DateTimeMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete
+   },
+   .updateValues = DateTimeMeter_updateValues,
+   .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
+   .total = 365,
+   .attributes = DateTimeMeter_attributes,
+   .name = "DateTime",
+   .uiName = "Date and Time",
+   .caption = "Date & Time: ",
+};

DateTimeMeter.h

@@ -0,0 +1,14 @@
+#ifndef HEADER_DateTimeMeter
+#define HEADER_DateTimeMeter
+/*
+htop - DateTimeMeter.h
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Meter.h"
+
+extern const MeterClass DateTimeMeter_class;
+
+#endif

DiskIOMeter.c

@@ -0,0 +1,124 @@
+/*
+htop - DiskIOMeter.c
+(C) 2020 Christian Göttsche
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "DiskIOMeter.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/time.h>
+
+#include "CRT.h"
+#include "Macros.h"
+#include "Object.h"
+#include "Platform.h"
+#include "RichString.h"
+#include "XUtils.h"
+
+
+static const int DiskIOMeter_attributes[] = {
+   METER_VALUE_NOTICE,
+   METER_VALUE_IOREAD,
+   METER_VALUE_IOWRITE,
+};
+
+static bool hasData = false;
+static unsigned long int cached_read_diff = 0;
+static unsigned long int cached_write_diff = 0;
+static double cached_utilisation_diff = 0.0;
+
+static void DiskIOMeter_updateValues(Meter* this, char* buffer, int len) {
+   static unsigned long long int cached_last_update = 0;
+
+   struct timeval tv;
+   gettimeofday(&tv, NULL);
+   unsigned long long int timeInMilliSeconds = (unsigned long long int)tv.tv_sec * 1000 + (unsigned long long int)tv.tv_usec / 1000;
+   unsigned long long int passedTimeInMs = timeInMilliSeconds - cached_last_update;
+
+   /* update only every 500ms */
+   if (passedTimeInMs > 500) {
+      static unsigned long int cached_read_total = 0;
+      static unsigned long int cached_write_total = 0;
+      static unsigned long int cached_msTimeSpend_total = 0;
+
+      cached_last_update = timeInMilliSeconds;
+
+      DiskIOData data;
+
+      hasData = Platform_getDiskIO(&data);
+      if (!hasData) {
+         this->values[0] = 0;
+         xSnprintf(buffer, len, "no data");
+         return;
+      }
+
+      if (data.totalBytesRead > cached_read_total) {
+         cached_read_diff = (data.totalBytesRead - cached_read_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
+      } else {
+         cached_read_diff = 0;
+      }
+      cached_read_total = data.totalBytesRead;
+
+      if (data.totalBytesWritten > cached_write_total) {
+         cached_write_diff = (data.totalBytesWritten - cached_write_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
+      } else {
+         cached_write_diff = 0;
+      }
+      cached_write_total = data.totalBytesWritten;
+
+      if (data.totalMsTimeSpend > cached_msTimeSpend_total) {
+         cached_utilisation_diff = 100 * (double)(data.totalMsTimeSpend - cached_msTimeSpend_total) / passedTimeInMs;
+      } else {
+         cached_utilisation_diff = 0.0;
+      }
+      cached_msTimeSpend_total = data.totalMsTimeSpend;
+   }
+
+   this->values[0] = cached_utilisation_diff;
+   this->total = MAXIMUM(this->values[0], 100.0); /* fix total after (initial) spike */
+
+   char bufferRead[12], bufferWrite[12];
+   Meter_humanUnit(bufferRead, cached_read_diff, sizeof(bufferRead));
+   Meter_humanUnit(bufferWrite, cached_write_diff, sizeof(bufferWrite));
+   snprintf(buffer, len, "%sB %sB %.1f%%", bufferRead, bufferWrite, cached_utilisation_diff);
+}
+
+static void DIskIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
+   if (!hasData) {
+      RichString_write(out, CRT_colors[METER_VALUE_ERROR], "no data");
+      return;
+   }
+
+   char buffer[16];
+
+   int color = cached_utilisation_diff > 40.0 ? METER_VALUE_NOTICE : METER_VALUE;
+   xSnprintf(buffer, sizeof(buffer), "%.1f%%", cached_utilisation_diff);
+   RichString_write(out, CRT_colors[color], buffer);
+
+   RichString_append(out, CRT_colors[METER_TEXT], " read: ");
+   Meter_humanUnit(buffer, cached_read_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOREAD], buffer);
+
+   RichString_append(out, CRT_colors[METER_TEXT], " write: ");
+   Meter_humanUnit(buffer, cached_write_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
+}
+
+const MeterClass DiskIOMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = DIskIOMeter_display
+   },
+   .updateValues = DiskIOMeter_updateValues,
+   .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
+   .total = 100.0,
+   .attributes = DiskIOMeter_attributes,
+   .name = "DiskIO",
+   .uiName = "Disk IO",
+   .caption = "Disk IO: "
+};

DiskIOMeter.h

@@ -0,0 +1,20 @@
+#ifndef HEADER_DiskIOMeter
+#define HEADER_DiskIOMeter
+/*
+ h top - DiskIOMeter*.h
+(C) 2020 Christian Göttsche
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Meter.h"
+
+typedef struct DiskIOData_ {
+   unsigned long int totalBytesRead;
+   unsigned long int totalBytesWritten;
+   unsigned long int totalMsTimeSpend;
+} DiskIOData;
+
+extern const MeterClass DiskIOMeter_class;
+
+#endif /* HEADER_DiskIOMeter */

DisplayOptionsPanel.c

@@ -1,34 +1,27 @@
 /*
 htop - DisplayOptionsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "DisplayOptionsPanel.h"
 
-#include "CheckItem.h"
-#include "CRT.h"
-
-#include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
-#include <string.h>
 
-/*{
-#include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
+#include "CRT.h"
+#include "FunctionBar.h"
+#include "Header.h"
+#include "Object.h"
+#include "OptionItem.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef struct DisplayOptionsPanel_ {
-   Panel super;
 
-   Settings* settings;
-   ScreenManager* scr;
-} DisplayOptionsPanel;
-
-}*/
-
-static const char* DisplayOptionsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
+static const char* const DisplayOptionsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
 static void DisplayOptionsPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
@@ -41,31 +34,52 @@ static HandlerResult DisplayOptionsPanel_eventHandler(Panel* super, int ch) {
    DisplayOptionsPanel* this = (DisplayOptionsPanel*) super;
 
    HandlerResult result = IGNORED;
-   CheckItem* selected = (CheckItem*) Panel_getSelected(super);
+   OptionItem* selected = (OptionItem*) Panel_getSelected(super);
 
    switch (ch) {
-   case 0x0a:
-   case 0x0d:
+   case '\n':
+   case '\r':
    case KEY_ENTER:
    case KEY_MOUSE:
    case KEY_RECLICK:
    case ' ':
-      CheckItem_set(selected, ! (CheckItem_get(selected)) );
+      switch (OptionItem_kind(selected)) {
+      case OPTION_ITEM_CHECK:
+         CheckItem_toggle((CheckItem*)selected);
          result = HANDLED;
+         break;
+      case OPTION_ITEM_NUMBER:
+         NumberItem_toggle((NumberItem*)selected);
+         result = HANDLED;
+         break;
+      }
+      break;
+   case '-':
+      if (OptionItem_kind(selected) == OPTION_ITEM_NUMBER) {
+         NumberItem_decrease((NumberItem*)selected);
+         result = HANDLED;
+      }
+      break;
+   case '+':
+      if (OptionItem_kind(selected) == OPTION_ITEM_NUMBER) {
+         NumberItem_increase((NumberItem*)selected);
+         result = HANDLED;
+      }
+      break;
    }
 
    if (result == HANDLED) {
       this->settings->changed = true;
-      const Header* header = this->scr->header;
-      Header_calculateHeight((Header*) header);
-      Header_reinit((Header*) header);
+      Header* header = this->scr->header;
+      Header_calculateHeight(header);
+      Header_reinit(header);
       Header_draw(header);
       ScreenManager_resize(this->scr, this->scr->x1, header->height, this->scr->x2, this->scr->y2);
    }
    return result;
 }
 
-PanelClass DisplayOptionsPanel_class = {
+const PanelClass DisplayOptionsPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = DisplayOptionsPanel_delete
@@ -77,25 +91,41 @@ DisplayOptionsPanel* DisplayOptionsPanel_new(Settings* settings, ScreenManager*
    DisplayOptionsPanel* this = AllocThis(DisplayOptionsPanel);
    Panel* super = (Panel*) this;
    FunctionBar* fuBar = FunctionBar_new(DisplayOptionsFunctions, NULL, NULL);
-   Panel_init(super, 1, 1, 1, 1, Class(CheckItem), true, fuBar);
+   Panel_init(super, 1, 1, 1, 1, Class(OptionItem), true, fuBar);
 
    this->settings = settings;
    this->scr = scr;
 
    Panel_setHeader(super, "Display options");
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Tree view"), &(settings->treeView)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Shadow other users' processes"), &(settings->shadowOtherUsers)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Hide kernel threads"), &(settings->hideKernelThreads)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Hide userland process threads"), &(settings->hideUserlandThreads)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Display threads in a different color"), &(settings->highlightThreads)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Show custom thread names"), &(settings->showThreadNames)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Show program path"), &(settings->showProgramPath)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Highlight program \"basename\""), &(settings->highlightBaseName)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Highlight large numbers in memory counters"), &(settings->highlightMegabytes)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Leave a margin around header"), &(settings->headerMargin)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Detailed CPU time (System/IO-Wait/Hard-IRQ/Soft-IRQ/Steal/Guest)"), &(settings->detailedCPUTime)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Count CPUs from 0 instead of 1"), &(settings->countCPUsFromZero)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Update process names on every refresh"), &(settings->updateProcessNames)));
-   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Add guest time in CPU meter percentage"), &(settings->accountGuestInCPUMeter)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Tree view", &(settings->treeView)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Shadow other users' processes", &(settings->shadowOtherUsers)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Hide kernel threads", &(settings->hideKernelThreads)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Hide userland process threads", &(settings->hideUserlandThreads)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Display threads in a different color", &(settings->highlightThreads)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Show custom thread names", &(settings->showThreadNames)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Show program path", &(settings->showProgramPath)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Highlight program \"basename\"", &(settings->highlightBaseName)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Merge exe, comm and cmdline in Command", &(settings->showMergedCommand)));
+   Panel_add(super, (Object*) CheckItem_newByRef("- Try to find comm in cmdline (when Command is merged)", &(settings->findCommInCmdline)));
+   Panel_add(super, (Object*) CheckItem_newByRef("- Try to strip exe from cmdline (when Command is merged)", &(settings->stripExeFromCmdline)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Highlight large numbers in memory counters", &(settings->highlightMegabytes)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Leave a margin around header", &(settings->headerMargin)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Detailed CPU time (System/IO-Wait/Hard-IRQ/Soft-IRQ/Steal/Guest)", &(settings->detailedCPUTime)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Count CPUs from 1 instead of 0", &(settings->countCPUsFromOne)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Update process names on every refresh", &(settings->updateProcessNames)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Add guest time in CPU meter percentage", &(settings->accountGuestInCPUMeter)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Also show CPU percentage numerically", &(settings->showCPUUsage)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Also show CPU frequency", &(settings->showCPUFrequency)));
+   #ifdef HAVE_SENSORS_SENSORS_H
+   Panel_add(super, (Object*) CheckItem_newByRef("Also show CPU temperature (requires libsensors)", &(settings->showCPUTemperature)));
+   Panel_add(super, (Object*) CheckItem_newByRef("- Show temperature in degree Fahrenheit instead of Celsius", &(settings->degreeFahrenheit)));
+   #endif
+   Panel_add(super, (Object*) CheckItem_newByRef("Enable the mouse", &(settings->enableMouse)));
+   Panel_add(super, (Object*) NumberItem_newByRef("Update interval (in seconds)", &(settings->delay), -1, 1, 255));
+   Panel_add(super, (Object*) CheckItem_newByRef("Highlight new and old processes", &(settings->highlightChanges)));
+   Panel_add(super, (Object*) NumberItem_newByRef("- Highlight time (in seconds)", &(settings->highlightDelaySecs), 0, 1, 24*60*60));
+   #ifdef HAVE_LIBHWLOC
+   Panel_add(super, (Object*) CheckItem_newByRef("Show topology when selecting affinity by default", &(settings->topologyAffinity)));
+   #endif
    return this;
 }

DisplayOptionsPanel.h

@@ -1,17 +1,15 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_DisplayOptionsPanel
 #define HEADER_DisplayOptionsPanel
 /*
 htop - DisplayOptionsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Panel.h"
-#include "Settings.h"
 #include "ScreenManager.h"
+#include "Settings.h"
 
 typedef struct DisplayOptionsPanel_ {
    Panel super;
@@ -20,8 +18,7 @@ typedef struct DisplayOptionsPanel_ {
    ScreenManager* scr;
 } DisplayOptionsPanel;
 
-
-extern PanelClass DisplayOptionsPanel_class;
+extern const PanelClass DisplayOptionsPanel_class;
 
 DisplayOptionsPanel* DisplayOptionsPanel_new(Settings* settings, ScreenManager* scr);
 

EnvScreen.c

@@ -1,25 +1,20 @@
-#include "EnvScreen.h"
+#include "config.h" // IWYU pragma: keep
 
-#include "config.h"
-#include "CRT.h"
-#include "IncSet.h"
-#include "ListItem.h"
-#include "Platform.h"
-#include "StringUtils.h"
+#include "EnvScreen.h"
 
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
-/*{
-#include "InfoScreen.h"
+#include "CRT.h"
+#include "Macros.h"
+#include "Panel.h"
+#include "Platform.h"
+#include "ProvideCurses.h"
+#include "Vector.h"
+#include "XUtils.h"
 
-typedef struct EnvScreen_ {
-   InfoScreen super;
-} EnvScreen;
-}*/
 
-InfoScreenClass EnvScreen_class = {
+const InfoScreenClass EnvScreen_class = {
    .super = {
       .extends = Class(Object),
       .delete = EnvScreen_delete
@@ -39,19 +34,18 @@ void EnvScreen_delete(Object* this) {
 }
 
 void EnvScreen_draw(InfoScreen* this) {
-   InfoScreen_drawTitled(this, "Environment of process %d - %s", this->process->pid, this->process->comm);
+   InfoScreen_drawTitled(this, "Environment of process %d - %s", this->process->pid, Process_getCommand(this->process));
 }
 
 void EnvScreen_scan(InfoScreen* this) {
    Panel* panel = this->display;
-   int idx = MAX(Panel_getSelectedIndex(panel), 0);
+   int idx = MAXIMUM(Panel_getSelectedIndex(panel), 0);
 
    Panel_prune(panel);
 
-   uid_t euid = geteuid();
-   (void) seteuid(getuid());
+   CRT_dropPrivileges();
    char* env = Platform_getProcessEnv(this->process->pid);
-   (void) seteuid(euid);
+   CRT_restorePrivileges();
    if (env) {
       for (char* p = env; *p; p = strrchr(p, 0) + 1)
          InfoScreen_addLine(this, p);

EnvScreen.h

@@ -1,15 +1,15 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_EnvScreen
 #define HEADER_EnvScreen
 
 #include "InfoScreen.h"
+#include "Object.h"
+#include "Process.h"
 
 typedef struct EnvScreen_ {
    InfoScreen super;
 } EnvScreen;
 
-extern InfoScreenClass EnvScreen_class;
+extern const InfoScreenClass EnvScreen_class;
 
 EnvScreen* EnvScreen_new(Process* process);
 

FunctionBar.c

@@ -1,48 +1,40 @@
 /*
 htop - FunctionBar.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "FunctionBar.h"
-#include "CRT.h"
-#include "RichString.h"
-#include "XAlloc.h"
 
-#include <assert.h>
-#include <string.h>
 #include <stdlib.h>
+#include <string.h>
 
-/*{
+#include "CRT.h"
+#include "Macros.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-#include <stdbool.h>
 
-typedef struct FunctionBar_ {
-   int size;
-   char** functions;
-   char** keys;
-   int* events;
-   bool staticData;
-} FunctionBar;
+static const char* const FunctionBar_FKeys[] = {"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", NULL};
 
-}*/
-
-static const char* FunctionBar_FKeys[] = {"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", NULL};
-
-static const char* FunctionBar_FLabels[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", NULL};
+static const char* const FunctionBar_FLabels[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", NULL};
 
 static int FunctionBar_FEvents[] = {KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10)};
 
-static const char* FunctionBar_EnterEscKeys[] = {"Enter", "Esc", NULL};
-static int FunctionBar_EnterEscEvents[] = {13, 27};
+static const char* const FunctionBar_EnterEscKeys[] = {"Enter", "Esc", NULL};
+static const int FunctionBar_EnterEscEvents[] = {13, 27};
+
+static int currentLen = 0;
 
 FunctionBar* FunctionBar_newEnterEsc(const char* enter, const char* esc) {
    const char* functions[] = {enter, esc, NULL};
    return FunctionBar_new(functions, FunctionBar_EnterEscKeys, FunctionBar_EnterEscEvents);
 }
 
-FunctionBar* FunctionBar_new(const char** functions, const char** keys, int* events) {
+FunctionBar* FunctionBar_new(const char* const* functions, const char* const* keys, const int* events) {
    FunctionBar* this = xCalloc(1, sizeof(FunctionBar));
    this->functions = xCalloc(16, sizeof(char*));
    if (!functions) {
@@ -53,20 +45,20 @@ FunctionBar* FunctionBar_new(const char** functions, const char** keys, int* eve
    }
    if (keys && events) {
       this->staticData = false;
-      this->keys = xCalloc(15, sizeof(char*));
+      this->keys.keys = xCalloc(15, sizeof(char*));
       this->events = xCalloc(15, sizeof(int));
       int i = 0;
       while (i < 15 && functions[i]) {
-         this->keys[i] = xStrdup(keys[i]);
+         this->keys.keys[i] = xStrdup(keys[i]);
          this->events[i] = events[i];
          i++;
       }
       this->size = i;
    } else {
       this->staticData = true;
-      this->keys = (char**) FunctionBar_FKeys;
+      this->keys.constKeys = FunctionBar_FKeys;
       this->events = FunctionBar_FEvents;
-      this->size = 10;
+      this->size = ARRAYSIZE(FunctionBar_FEvents);
    }
    return this;
 }
@@ -78,9 +70,9 @@ void FunctionBar_delete(FunctionBar* this) {
    free(this->functions);
    if (!this->staticData) {
       for (int i = 0; i < this->size; i++) {
-         free(this->keys[i]);
+         free(this->keys.keys[i]);
       }
-      free(this->keys);
+      free(this->keys.keys);
       free(this->events);
    }
    free(this);
@@ -96,37 +88,60 @@ void FunctionBar_setLabel(FunctionBar* this, int event, const char* text) {
    }
 }
 
-void FunctionBar_draw(const FunctionBar* this, char* buffer) {
-   FunctionBar_drawAttr(this, buffer, CRT_colors[FUNCTION_BAR]);
+void FunctionBar_draw(const FunctionBar* this) {
+   FunctionBar_drawExtra(this, NULL, -1, false);
 }
 
-void FunctionBar_drawAttr(const FunctionBar* this, char* buffer, int attr) {
+void FunctionBar_drawExtra(const FunctionBar* this, const char* buffer, int attr, bool setCursor) {
    attrset(CRT_colors[FUNCTION_BAR]);
    mvhline(LINES - 1, 0, ' ', COLS);
    int x = 0;
    for (int i = 0; i < this->size; i++) {
       attrset(CRT_colors[FUNCTION_KEY]);
-      mvaddstr(LINES-1, x, this->keys[i]);
-      x += strlen(this->keys[i]);
+      mvaddstr(LINES - 1, x, this->keys.constKeys[i]);
+      x += strlen(this->keys.constKeys[i]);
       attrset(CRT_colors[FUNCTION_BAR]);
       mvaddstr(LINES - 1, x, this->functions[i]);
       x += strlen(this->functions[i]);
    }
+
    if (buffer) {
+      if (attr == -1) {
+         attrset(CRT_colors[FUNCTION_BAR]);
+      } else {
          attrset(attr);
+      }
       mvaddstr(LINES - 1, x, buffer);
-      CRT_cursorX = x + strlen(buffer);
+      attrset(CRT_colors[RESET_COLOR]);
+      x += strlen(buffer);
+   }
+
+   if (setCursor) {
+      CRT_cursorX = x;
       curs_set(1);
    } else {
       curs_set(0);
    }
+
+   currentLen = x;
+}
+
+void FunctionBar_append(const char* buffer, int attr) {
+   if (attr == -1) {
+      attrset(CRT_colors[FUNCTION_BAR]);
+   } else {
+      attrset(attr);
+   }
+   mvaddstr(LINES - 1, currentLen, buffer);
    attrset(CRT_colors[RESET_COLOR]);
+
+   currentLen += strlen(buffer);
 }
 
 int FunctionBar_synthesizeEvent(const FunctionBar* this, int pos) {
    int x = 0;
    for (int i = 0; i < this->size; i++) {
-      x += strlen(this->keys[i]);
+      x += strlen(this->keys.constKeys[i]);
       x += strlen(this->functions[i]);
       if (pos < x) {
          return this->events[i];

FunctionBar.h

@@ -1,38 +1,38 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_FunctionBar
 #define HEADER_FunctionBar
 /*
 htop - FunctionBar.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-
 #include <stdbool.h>
 
 typedef struct FunctionBar_ {
    int size;
    char** functions;
+   union {
       char** keys;
+      const char* const* constKeys;
+   } keys;
    int* events;
    bool staticData;
 } FunctionBar;
 
-
-
 FunctionBar* FunctionBar_newEnterEsc(const char* enter, const char* esc);
 
-FunctionBar* FunctionBar_new(const char** functions, const char** keys, int* events);
+FunctionBar* FunctionBar_new(const char* const* functions, const char* const* keys, const int* events);
 
 void FunctionBar_delete(FunctionBar* this);
 
 void FunctionBar_setLabel(FunctionBar* this, int event, const char* text);
 
-void FunctionBar_draw(const FunctionBar* this, char* buffer);
+void FunctionBar_draw(const FunctionBar* this);
 
-void FunctionBar_drawAttr(const FunctionBar* this, char* buffer, int attr);
+void FunctionBar_drawExtra(const FunctionBar* this, const char* buffer, int attr, bool setCursor);
+
+void FunctionBar_append(const char* buffer, int attr);
 
 int FunctionBar_synthesizeEvent(const FunctionBar* this, int pos);
 

Hashtable.c

@@ -1,172 +1,304 @@
 /*
 htop - Hashtable.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "Hashtable.h"
-#include "XAlloc.h"
 
-#include <stdlib.h>
 #include <assert.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
 
-/*{
-#include <stdbool.h>
+#include "Macros.h"
+#include "XUtils.h"
 
-typedef struct Hashtable_ Hashtable;
 
-typedef void(*Hashtable_PairFunction)(int, void*, void*);
+#ifndef NDEBUG
 
-typedef struct HashtableItem {
-   unsigned int key;
-   void* value;
-   struct HashtableItem* next;
-} HashtableItem;
+static void Hashtable_dump(const Hashtable* this) {
+   fprintf(stderr, "Hashtable %p: size=%u items=%u owner=%s\n",
+           (const void*)this,
+           this->size,
+           this->items,
+           this->owner ? "yes" : "no");
 
-struct Hashtable_ {
-   int size;
-   HashtableItem** buckets;
-   int items;
-   bool owner;
-};
-}*/
+   unsigned int items = 0;
+   for (unsigned int i = 0; i < this->size; i++) {
+      fprintf(stderr, "  item %5u: key = %5u probe = %2u value = %p\n",
+              i,
+              this->buckets[i].key,
+              this->buckets[i].probe,
+              this->buckets[i].value ? (const void*)this->buckets[i].value : "(nil)");
 
-#ifdef DEBUG
-
-static bool Hashtable_isConsistent(Hashtable* this) {
-   int items = 0;
-   for (int i = 0; i < this->size; i++) {
-      HashtableItem* bucket = this->buckets[i];
-      while (bucket) {
+      if (this->buckets[i].value)
          items++;
-         bucket = bucket->next;
-      }
-   }
-   return items == this->items;
    }
 
-int Hashtable_count(Hashtable* this) {
-   int items = 0;
-   for (int i = 0; i < this->size; i++) {
-      HashtableItem* bucket = this->buckets[i];
-      while (bucket) {
-         items++;
-         bucket = bucket->next;
+   fprintf(stderr, "Hashtable %p: items=%u counted=%u\n",
+           (const void*)this,
+           this->items,
+           items);
 }
+
+static bool Hashtable_isConsistent(const Hashtable* this) {
+   unsigned int items = 0;
+   for (unsigned int i = 0; i < this->size; i++) {
+      if (this->buckets[i].value)
+         items++;
+   }
+   bool res = items == this->items;
+   if (!res)
+      Hashtable_dump(this);
+   return res;
+}
+
+unsigned int Hashtable_count(const Hashtable* this) {
+   unsigned int items = 0;
+   for (unsigned int i = 0; i < this->size; i++) {
+      if (this->buckets[i].value)
+         items++;
    }
    assert(items == this->items);
    return items;
 }
 
-#endif
+#endif /* NDEBUG */
 
-static HashtableItem* HashtableItem_new(unsigned int key, void* value) {
-   HashtableItem* this;
+/* https://oeis.org/A014234 */
+static const uint64_t OEISprimes[] = {
+   2, 3, 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191,
+   16381, 32749, 65521, 131071, 262139, 524287, 1048573,
+   2097143, 4194301, 8388593, 16777213, 33554393,
+   67108859, 134217689, 268435399, 536870909, 1073741789,
+   2147483647, 4294967291, 8589934583, 17179869143,
+   34359738337, 68719476731, 137438953447
+};
 
-   this = xMalloc(sizeof(HashtableItem));
-   this->key = key;
-   this->value = value;
-   this->next = NULL;
-   return this;
+static uint64_t nextPrime(unsigned int n) {
+   assert(n <= OEISprimes[ARRAYSIZE(OEISprimes) - 1]);
+
+   for (unsigned int i = 0; i < ARRAYSIZE(OEISprimes); i++) {
+      if (n <= OEISprimes[i])
+         return OEISprimes[i];
    }
 
-Hashtable* Hashtable_new(int size, bool owner) {
+   return OEISprimes[ARRAYSIZE(OEISprimes) - 1];
+}
+
+Hashtable* Hashtable_new(unsigned int size, bool owner) {
    Hashtable* this;
 
    this = xMalloc(sizeof(Hashtable));
    this->items = 0;
-   this->size = size;
-   this->buckets = (HashtableItem**) xCalloc(size, sizeof(HashtableItem*));
+   this->size = size ? nextPrime(size) : 13;
+   this->buckets = (HashtableItem*) xCalloc(this->size, sizeof(HashtableItem));
    this->owner = owner;
+
    assert(Hashtable_isConsistent(this));
    return this;
 }
 
 void Hashtable_delete(Hashtable* this) {
-   assert(Hashtable_isConsistent(this));
-   for (int i = 0; i < this->size; i++) {
-      HashtableItem* walk = this->buckets[i];
-      while (walk != NULL) {
-         if (this->owner)
-            free(walk->value);
-         HashtableItem* savedWalk = walk;
-         walk = savedWalk->next;
-         free(savedWalk);
-      }
-   }
+   Hashtable_clear(this);
+
    free(this->buckets);
    free(this);
 }
 
-void Hashtable_put(Hashtable* this, unsigned int key, void* value) {
-   unsigned int index = key % this->size;
-   HashtableItem** bucketPtr = &(this->buckets[index]);
-   while (true)
-      if (*bucketPtr == NULL) {
-         *bucketPtr = HashtableItem_new(key, value);
-         this->items++;
-         break;
-      } else if ((*bucketPtr)->key == key) {
+void Hashtable_clear(Hashtable* this) {
+   assert(Hashtable_isConsistent(this));
+
    if (this->owner)
-            free((*bucketPtr)->value);
-         (*bucketPtr)->value = value;
-         break;
-      } else
-         bucketPtr = &((*bucketPtr)->next);
+      for (unsigned int i = 0; i < this->size; i++)
+         free(this->buckets[i].value);
+
+   memset(this->buckets, 0, this->size * sizeof(HashtableItem));
+   this->items = 0;
+
    assert(Hashtable_isConsistent(this));
 }
 
-void* Hashtable_remove(Hashtable* this, unsigned int key) {
+static void insert(Hashtable* this, hkey_t key, void* value) {
    unsigned int index = key % this->size;
+   unsigned int probe = 0;
+#ifndef NDEBUG
+   unsigned int origIndex = index;
+#endif
+
+   for (;;) {
+      if (!this->buckets[index].value) {
+         this->items++;
+         this->buckets[index].key = key;
+         this->buckets[index].probe = probe;
+         this->buckets[index].value = value;
+         return;
+      }
+
+      if (this->buckets[index].key == key) {
+         if (this->owner && this->buckets[index].value != value)
+            free(this->buckets[index].value);
+         this->buckets[index].value = value;
+         return;
+      }
+
+      /* Robin Hood swap */
+      if (probe > this->buckets[index].probe) {
+         HashtableItem tmp = this->buckets[index];
+
+         this->buckets[index].key = key;
+         this->buckets[index].probe = probe;
+         this->buckets[index].value = value;
+
+         key = tmp.key;
+         probe = tmp.probe;
+         value = tmp.value;
+      }
+
+      index = (index + 1) % this->size;
+      probe++;
+
+      assert(index != origIndex);
+   }
+}
+
+void Hashtable_setSize(Hashtable* this, unsigned int size) {
 
    assert(Hashtable_isConsistent(this));
 
-   HashtableItem** bucket; 
-   for (bucket = &(this->buckets[index]); *bucket; bucket = &((*bucket)->next) ) {
-      if ((*bucket)->key == key) {
-         void* value = (*bucket)->value;
-         HashtableItem* next = (*bucket)->next;
-         free(*bucket);
-         (*bucket) = next;
-         this->items--;
+   if (size <= this->items)
+      return;
+
+   HashtableItem* oldBuckets = this->buckets;
+   unsigned int oldSize = this->size;
+
+   this->size = nextPrime(size);
+   this->buckets = (HashtableItem*) xCalloc(this->size, sizeof(HashtableItem));
+   this->items = 0;
+
+   /* rehash */
+   for (unsigned int i = 0; i < oldSize; i++) {
+      if (!oldBuckets[i].value)
+         continue;
+
+      insert(this, oldBuckets[i].key, oldBuckets[i].value);
+   }
+
+   free(oldBuckets);
+
+   assert(Hashtable_isConsistent(this));
+}
+
+void Hashtable_put(Hashtable* this, hkey_t key, void* value) {
+
+   assert(Hashtable_isConsistent(this));
+   assert(this->size > 0);
+   assert(value);
+
+   /* grow on load-factor > 0.7 */
+   if (10 * this->items > 7 * this->size)
+      Hashtable_setSize(this, 2 * this->size);
+
+   insert(this, key, value);
+
+   assert(Hashtable_isConsistent(this));
+   assert(Hashtable_get(this, key) != NULL);
+   assert(this->size > this->items);
+}
+
+void* Hashtable_remove(Hashtable* this, hkey_t key) {
+   unsigned int index = key % this->size;
+   unsigned int probe = 0;
+#ifndef NDEBUG
+   unsigned int origIndex = index;
+#endif
+
+   assert(Hashtable_isConsistent(this));
+
+   void* res = NULL;
+
+   while (this->buckets[index].value) {
+      if (this->buckets[index].key == key) {
          if (this->owner) {
-            free(value);
-            assert(Hashtable_isConsistent(this));
-            return NULL;
+            free(this->buckets[index].value);
          } else {
-            assert(Hashtable_isConsistent(this));
-            return value;
-         }
-      }
-   }
-   assert(Hashtable_isConsistent(this));
-   return NULL;
+            res = this->buckets[index].value;
          }
 
-inline void* Hashtable_get(Hashtable* this, unsigned int key) {
-   unsigned int index = key % this->size;
-   HashtableItem* bucketPtr = this->buckets[index];
-   while (true) {
-      if (bucketPtr == NULL) {
-         assert(Hashtable_isConsistent(this));
-         return NULL;
-      } else if (bucketPtr->key == key) {
-         assert(Hashtable_isConsistent(this));
-         return bucketPtr->value;
-      } else
-         bucketPtr = bucketPtr->next;
+         unsigned int next = (index + 1) % this->size;
+
+         while (this->buckets[next].value && this->buckets[next].probe > 0) {
+            this->buckets[index] = this->buckets[next];
+            this->buckets[index].probe -= 1;
+
+            index = next;
+            next = (index + 1) % this->size;
          }
+
+         /* set empty after backward shifting */
+         this->buckets[index].value = NULL;
+         this->items--;
+
+         break;
+      }
+
+      if (this->buckets[index].probe < probe)
+         break;
+
+      index = (index + 1) % this->size;
+      probe++;
+
+      assert(index != origIndex);
+   }
+
+   assert(Hashtable_isConsistent(this));
+   assert(Hashtable_get(this, key) == NULL);
+
+   /* shrink on load-factor < 0.125 */
+   if (8 * this->items < this->size)
+      Hashtable_setSize(this, this->size / 2);
+
+   return res;
+}
+
+void* Hashtable_get(Hashtable* this, hkey_t key) {
+   unsigned int index = key % this->size;
+   unsigned int probe = 0;
+   void* res = NULL;
+#ifndef NDEBUG
+   unsigned int origIndex = index;
+#endif
+
+   assert(Hashtable_isConsistent(this));
+
+   while (this->buckets[index].value) {
+      if (this->buckets[index].key == key) {
+         res = this->buckets[index].value;
+         break;
+      }
+
+      if (this->buckets[index].probe < probe)
+         break;
+
+      index = (index + 1) != this->size ? (index + 1) : 0;
+      probe++;
+
+      assert(index != origIndex);
+   }
+
+   return res;
 }
 
 void Hashtable_foreach(Hashtable* this, Hashtable_PairFunction f, void* userData) {
    assert(Hashtable_isConsistent(this));
-   for (int i = 0; i < this->size; i++) {
-      HashtableItem* walk = this->buckets[i];
-      while (walk != NULL) {
+   for (unsigned int i = 0; i < this->size; i++) {
+      HashtableItem* walk = &this->buckets[i];
+      if (walk->value)
          f(walk->key, walk->value, userData);
-         walk = walk->next;
-      }
    }
    assert(Hashtable_isConsistent(this));
 }

Hashtable.h

@@ -1,48 +1,51 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Hashtable
 #define HEADER_Hashtable
 /*
 htop - Hashtable.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include <stdbool.h>
 
-typedef struct Hashtable_ Hashtable;
 
-typedef void(*Hashtable_PairFunction)(int, void*, void*);
+typedef unsigned int hkey_t;
 
-typedef struct HashtableItem {
-   unsigned int key;
+typedef void(*Hashtable_PairFunction)(hkey_t key, void* value, void* userdata);
+
+typedef struct HashtableItem_ {
+   hkey_t key;
+   unsigned int probe;
    void* value;
-   struct HashtableItem* next;
 } HashtableItem;
 
-struct Hashtable_ {
-   int size;
-   HashtableItem** buckets;
-   int items;
+typedef struct Hashtable_ {
+   unsigned int size;
+   HashtableItem* buckets;
+   unsigned int items;
    bool owner;
-};
+} Hashtable;
 
-#ifdef DEBUG
+#ifndef NDEBUG
 
-int Hashtable_count(Hashtable* this);
+unsigned int Hashtable_count(const Hashtable* this);
 
-#endif
+#endif /* NDEBUG */
 
-Hashtable* Hashtable_new(int size, bool owner);
+Hashtable* Hashtable_new(unsigned int size, bool owner);
 
 void Hashtable_delete(Hashtable* this);
 
-void Hashtable_put(Hashtable* this, unsigned int key, void* value);
+void Hashtable_clear(Hashtable* this);
 
-void* Hashtable_remove(Hashtable* this, unsigned int key);
+void Hashtable_setSize(Hashtable* this, unsigned int size);
 
-extern void* Hashtable_get(Hashtable* this, unsigned int key);
+void Hashtable_put(Hashtable* this, hkey_t key, void* value);
+
+void* Hashtable_remove(Hashtable* this, hkey_t key);
+
+void* Hashtable_get(Hashtable* this, hkey_t key);
 
 void Hashtable_foreach(Hashtable* this, Hashtable_PairFunction f, void* userData);
 

Header.c

@@ -1,44 +1,24 @@
 /*
 htop - Header.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Header.h"
 
-#include "CRT.h"
-#include "StringUtils.h"
-#include "Platform.h"
-
-#include <assert.h>
-#include <time.h>
-#include <string.h>
+#include <stdbool.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
-/*{
-#include "Meter.h"
-#include "Settings.h"
-#include "Vector.h"
+#include "CRT.h"
+#include "Macros.h"
+#include "Object.h"
+#include "Platform.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef struct Header_ {
-   Vector** columns;
-   Settings* settings;
-   struct ProcessList_* pl;
-   int nrColumns;
-   int pad;
-   int height;
-} Header;
-
-}*/
-
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
-#ifndef Header_forEachColumn
-#define Header_forEachColumn(this_, i_) for (int (i_)=0; (i_) < (this_)->nrColumns; ++(i_))
-#endif
 
 Header* Header_new(struct ProcessList_* pl, Settings* settings, int nrColumns) {
    Header* this = xCalloc(1, sizeof(Header));
@@ -89,11 +69,11 @@ void Header_writeBackToSettings(const Header* this) {
 
       for (int i = 0; i < len; i++) {
          Meter* meter = (Meter*) Vector_get(vec, i);
-         char* name = xCalloc(64, sizeof(char));
+         char* name;
          if (meter->param) {
-            snprintf(name, 63, "%s(%d)", As_Meter(meter)->name, meter->param);
+            xAsprintf(&name, "%s(%d)", As_Meter(meter)->name, meter->param);
          } else {
-            snprintf(name, 63, "%s", As_Meter(meter)->name);
+            xAsprintf(&name, "%s", As_Meter(meter)->name);
          }
          colSettings->names[i] = name;
          colSettings->modes[i] = meter->mode;
@@ -108,11 +88,12 @@ MeterModeId Header_addMeterByName(Header* this, char* name, int column) {
    int param = 0;
    if (paren) {
       int ok = sscanf(paren, "(%10d)", &param);
-      if (!ok) param = 0;
+      if (!ok)
+         param = 0;
       *paren = '\0';
    }
    MeterModeId mode = TEXT_METERMODE;
-   for (MeterClass** type = Platform_meterTypes; *type; type++) {
+   for (const MeterClass* const* type = Platform_meterTypes; *type; type++) {
       if (String_eq(name, (*type)->name)) {
          Meter* meter = Meter_new(this->pl, param, *type);
          Vector_add(meters, meter);
@@ -120,6 +101,10 @@ MeterModeId Header_addMeterByName(Header* this, char* name, int column) {
          break;
       }
    }
+
+   if (paren)
+      *paren = '(';
+
    return mode;
 }
 
@@ -128,11 +113,12 @@ void Header_setMode(Header* this, int i, MeterModeId mode, int column) {
 
    if (i >= Vector_size(meters))
       return;
+
    Meter* meter = (Meter*) Vector_get(meters, i);
    Meter_setMode(meter, mode);
 }
 
-Meter* Header_addMeterByClass(Header* this, MeterClass* type, int param, int column) {
+Meter* Header_addMeterByClass(Header* this, const MeterClass* type, int param, int column) {
    Vector* meters = this->columns[column];
 
    Meter* meter = Meter_new(this->pl, param, type);
@@ -152,10 +138,10 @@ char* Header_readMeterName(Header* this, int i, int column) {
    int nameLen = strlen(Meter_name(meter));
    int len = nameLen + 100;
    char* name = xMalloc(len);
-   strncpy(name, Meter_name(meter), nameLen);
+   memcpy(name, Meter_name(meter), nameLen);
    name[nameLen] = '\0';
    if (meter->param)
-      snprintf(name + nameLen, len - nameLen, "(%d)", meter->param);
+      xSnprintf(name + nameLen, len - nameLen, "(%d)", meter->param);
 
    return name;
 }
@@ -171,11 +157,12 @@ void Header_reinit(Header* this) {
    Header_forEachColumn(this, col) {
       for (int i = 0; i < Vector_size(this->columns[col]); i++) {
          Meter* meter = (Meter*) Vector_get(this->columns[col], i);
-         if (Meter_initFn(meter))
+         if (Meter_initFn(meter)) {
             Meter_init(meter);
          }
       }
    }
+}
 
 void Header_draw(const Header* this) {
    int height = this->height;
@@ -209,7 +196,7 @@ int Header_calculateHeight(Header* this) {
          Meter* meter = (Meter*) Vector_get(meters, i);
          height += meter->h;
       }
-      maxHeight = MAX(maxHeight, height);
+      maxHeight = MAXIMUM(maxHeight, height);
    }
    this->height = maxHeight;
    this->pad = pad;

Header.h

@@ -1,37 +1,29 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Header
 #define HEADER_Header
 /*
 htop - Header.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Meter.h"
+#include "ProcessList.h"
 #include "Settings.h"
 #include "Vector.h"
 
 typedef struct Header_ {
    Vector** columns;
    Settings* settings;
-   struct ProcessList_* pl;
+   ProcessList* pl;
    int nrColumns;
    int pad;
    int height;
 } Header;
 
-
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
-#ifndef Header_forEachColumn
 #define Header_forEachColumn(this_, i_) for (int (i_)=0; (i_) < (this_)->nrColumns; ++(i_))
-#endif
 
-Header* Header_new(struct ProcessList_* pl, Settings* settings, int nrColumns);
+Header* Header_new(ProcessList* pl, Settings* settings, int nrColumns);
 
 void Header_delete(Header* this);
 
@@ -43,7 +35,7 @@ MeterModeId Header_addMeterByName(Header* this, char* name, int column);
 
 void Header_setMode(Header* this, int i, MeterModeId mode, int column);
 
-Meter* Header_addMeterByClass(Header* this, MeterClass* type, int param, int column);
+Meter* Header_addMeterByClass(Header* this, const MeterClass* type, int param, int column);
 
 int Header_size(Header* this, int column);
 

HostnameMeter.c

@@ -1,21 +1,21 @@
 /*
 htop - HostnameMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "HostnameMeter.h"
+#include "config.h" // IWYU pragma: keep
 
-#include "CRT.h"
+#include "HostnameMeter.h"
 
 #include <unistd.h>
 
-/*{
-#include "Meter.h"
-}*/
+#include "CRT.h"
+#include "Object.h"
 
-int HostnameMeter_attributes[] = {
+
+static const int HostnameMeter_attributes[] = {
    HOSTNAME
 };
 
@@ -24,7 +24,7 @@ static void HostnameMeter_updateValues(Meter* this, char* buffer, int size) {
    gethostname(buffer, size - 1);
 }
 
-MeterClass HostnameMeter_class = {
+const MeterClass HostnameMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete

HostnameMeter.h

@@ -1,18 +1,14 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_HostnameMeter
 #define HEADER_HostnameMeter
 /*
 htop - HostnameMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Meter.h"
 
-extern int HostnameMeter_attributes[];
-
-extern MeterClass HostnameMeter_class;
+extern const MeterClass HostnameMeter_class;
 
 #endif

INSTALL

@@ -1,370 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation,
-Inc.
-
-   Copying and distribution of this file, with or without modification,
-are permitted in any medium without royalty provided the copyright
-notice and this notice are preserved.  This file is offered as-is,
-without warranty of any kind.
-
-Basic Installation
-==================
-
-   Briefly, the shell command `./configure && make && make install'
-should configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.  Some packages provide this
-`INSTALL' file but do not implement all of the features documented
-below.  The lack of an optional feature in a given package is not
-necessarily a bug.  More recommendations for GNU packages can be found
-in *note Makefile Conventions: (standards)Makefile Conventions.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-   The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package, generally using the just-built uninstalled binaries.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.  When installing into a prefix owned by root, it is
-     recommended that the package be configured and built as a regular
-     user, and only the `make install' phase executed with root
-     privileges.
-
-  5. Optionally, type `make installcheck' to repeat any self-tests, but
-     this time using the binaries in their final installed location.
-     This target does not install anything.  Running this target as a
-     regular user, particularly if the prior `make install' required
-     root privileges, verifies that the installation completed
-     correctly.
-
-  6. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
-
-  7. Often, you can also type `make uninstall' to remove the installed
-     files again.  In practice, not all packages have tested that
-     uninstallation works correctly, even though it is required by the
-     GNU Coding Standards.
-
-  8. Some packages, particularly those that use Automake, provide `make
-     distcheck', which can by used by developers to test that all other
-     targets like `make install' and `make uninstall' work correctly.
-     This target is generally not run by end users.
-
-Compilers and Options
-=====================
-
-   Some systems require unusual options for compilation or linking that
-the `configure' script does not know about.  Run `./configure --help'
-for details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-   You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.  This
-is known as a "VPATH" build.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-   On MacOS X 10.5 and later systems, you can create libraries and
-executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
-compiler but only a single `-arch' option to the preprocessor.  Like
-this:
-
-     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
-                 CPP="gcc -E" CXXCPP="g++ -E"
-
-   This is not guaranteed to produce working output in all cases, you
-may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
-
-Installation Names
-==================
-
-   By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX', where PREFIX must be an
-absolute file name.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.  In general, the
-default for these options is expressed in terms of `${prefix}', so that
-specifying just `--prefix' will affect all of the other directory
-specifications that were not explicitly provided.
-
-   The most portable way to affect installation locations is to pass the
-correct locations to `configure'; however, many packages provide one or
-both of the following shortcuts of passing variable assignments to the
-`make install' command line to change installation locations without
-having to reconfigure or recompile.
-
-   The first method involves providing an override variable for each
-affected directory.  For example, `make install
-prefix=/alternate/directory' will choose an alternate location for all
-directory configuration variables that were expressed in terms of
-`${prefix}'.  Any directories that were specified during `configure',
-but not in terms of `${prefix}', must each be overridden at install
-time for the entire installation to be relocated.  The approach of
-makefile variable overrides for each directory variable is required by
-the GNU Coding Standards, and ideally causes no recompilation.
-However, some platforms have known limitations with the semantics of
-shared libraries that end up requiring recompilation when using this
-method, particularly noticeable in packages that use GNU Libtool.
-
-   The second method involves providing the `DESTDIR' variable.  For
-example, `make install DESTDIR=/alternate/directory' will prepend
-`/alternate/directory' before all installation names.  The approach of
-`DESTDIR' overrides is not required by the GNU Coding Standards, and
-does not work on platforms that have drive letters.  On the other hand,
-it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of `${prefix}'
-at `configure' time.
-
-Optional Features
-=================
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-   Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-   Some packages offer the ability to configure how verbose the
-execution of `make' will be.  For these packages, running `./configure
---enable-silent-rules' sets the default to minimal output, which can be
-overridden with `make V=1'; while running `./configure
---disable-silent-rules' sets the default to verbose, which can be
-overridden with `make V=0'.
-
-Particular systems
-==================
-
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
-CC is not installed, it is recommended to use the following options in
-order to use an ANSI C compiler:
-
-     ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
-
-and if that doesn't work, install pre-built binaries of GCC for HP-UX.
-
-   HP-UX `make' updates targets which have the same time stamps as
-their prerequisites, which makes it generally unusable when shipped
-generated files such as `configure' are involved.  Use GNU `make'
-instead.
-
-   On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
-a workaround.  If GNU CC is not installed, it is therefore recommended
-to try
-
-     ./configure CC="cc"
-
-and if that doesn't work, try
-
-     ./configure CC="cc -nodtk"
-
-   On Solaris, don't put `/usr/ucb' early in your `PATH'.  This
-directory contains several dysfunctional programs; working variants of
-these programs are available in `/usr/bin'.  So, if you need `/usr/ucb'
-in your `PATH', put it _after_ `/usr/bin'.
-
-   On Haiku, software installed for all users goes in `/boot/common',
-not `/usr/local'.  It is recommended to use the following options:
-
-     ./configure --prefix=/boot/common
-
-Specifying the System Type
-==========================
-
-   There may be some features `configure' cannot figure out
-automatically, but needs to determine by the type of machine the package
-will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, `configure' can figure that out, but if it prints
-a message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS
-     KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-   If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-   Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf limitation.  Until the limitation is lifted, you can use
-this workaround:
-
-     CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-   `configure' recognizes the following options to control how it
-operates.
-
-`--help'
-`-h'
-     Print a summary of all of the options to `configure', and exit.
-
-`--help=short'
-`--help=recursive'
-     Print a summary of the options unique to this package's
-     `configure', and exit.  The `short' variant lists options used
-     only in the top level, while the `recursive' variant lists options
-     also present in any nested packages.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`--prefix=DIR'
-     Use DIR as the installation prefix.  *note Installation Names::
-     for more details, including other options available for fine-tuning
-     the installation locations.
-
-`--no-create'
-`-n'
-     Run the configure checks, but stop before creating any output
-     files.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.

IncSet.c

@@ -1,59 +1,36 @@
 /*
 htop - IncSet.c
 (C) 2005-2012 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "IncSet.h"
-#include "StringUtils.h"
-#include "Panel.h"
-#include "ListItem.h"
-#include "CRT.h"
+
+#include <ctype.h>
 #include <string.h>
 #include <stdlib.h>
 
-/*{
+#include "CRT.h"
+#include "ListItem.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-#include "FunctionBar.h"
-#include "Panel.h"
-#include <stdbool.h>
-
-#define INCMODE_MAX 40
-
-typedef enum {
-   INC_SEARCH = 0,
-   INC_FILTER = 1
-} IncType;
-
-#define IncSet_filter(inc_) (inc_->filtering ? inc_->modes[INC_FILTER].buffer : NULL)
-
-typedef struct IncMode_ {
-   char buffer[INCMODE_MAX+1];
-   int index;
-   FunctionBar* bar;
-   bool isFilter;
-} IncMode;
-
-typedef struct IncSet_ {
-   IncMode modes[2];
-   IncMode* active;
-   FunctionBar* defaultBar;
-   bool filtering;
-   bool found;
-} IncSet;
-
-typedef const char* (*IncMode_GetPanelValue)(Panel*, int);
-
-}*/
 
 static void IncMode_reset(IncMode* mode) {
    mode->index = 0;
    mode->buffer[0] = 0;
 }
 
-static const char* searchFunctions[] = {"Next  ", "Cancel ", " Search: ", NULL};
-static const char* searchKeys[] = {"F3", "Esc", "  "};
+void IncSet_reset(IncSet* this, IncType type) {
+   IncMode_reset(&this->modes[type]);
+}
+
+static const char* const searchFunctions[] = {"Next  ", "Cancel ", " Search: ", NULL};
+static const char* const searchKeys[] = {"F3", "Esc", "  "};
 static int searchEvents[] = {KEY_F(3), 27, ERR};
 
 static inline void IncMode_initSearch(IncMode* search) {
@@ -62,8 +39,8 @@ static inline void IncMode_initSearch(IncMode* search) {
    search->isFilter = false;
 }
 
-static const char* filterFunctions[] = {"Done  ", "Clear ", " Filter: ", NULL};
-static const char* filterKeys[] = {"Enter", "Esc", "  "};
+static const char* const filterFunctions[] = {"Done  ", "Clear ", " Filter: ", NULL};
+static const char* const filterKeys[] = {"Enter", "Esc", "  "};
 static int filterEvents[] = {13, 27, ERR};
 
 static inline void IncMode_initFilter(IncMode* filter) {
@@ -102,7 +79,10 @@ static void updateWeakPanel(IncSet* this, Panel* panel, Vector* lines) {
          ListItem* line = (ListItem*)Vector_get(lines, i);
          if (String_contains_i(line->value, incFilter)) {
             Panel_add(panel, (Object*)line);
-            if (selected == (Object*)line) Panel_setSelected(panel, n);
+            if (selected == (Object*)line) {
+               Panel_setSelected(panel, n);
+            }
+
             n++;
          }
       }
@@ -110,7 +90,9 @@ static void updateWeakPanel(IncSet* this, Panel* panel, Vector* lines) {
       for (int i = 0; i < Vector_size(lines); i++) {
          Object* line = Vector_get(lines, i);
          Panel_add(panel, line);
-         if (selected == line) Panel_setSelected(panel, i);
+         if (selected == line) {
+            Panel_setSelected(panel, i);
+         }
       }
    }
 }
@@ -125,42 +107,69 @@ static bool search(IncMode* mode, Panel* panel, IncMode_GetPanelValue getPanelVa
          break;
       }
    }
-   if (found)
-      FunctionBar_draw(mode->bar, mode->buffer);
-   else
-      FunctionBar_drawAttr(mode->bar, mode->buffer, CRT_colors[FAILED_SEARCH]);
+
+   FunctionBar_drawExtra(mode->bar,
+                         mode->buffer,
+                         found ? -1 : CRT_colors[FAILED_SEARCH],
+                         true);
    return found;
 }
 
+static bool IncMode_find(IncMode* mode, Panel* panel, IncMode_GetPanelValue getPanelValue, int step) {
+   int size = Panel_size(panel);
+   int here = Panel_getSelectedIndex(panel);
+   int i = here;
+   for (;;) {
+      i += step;
+      if (i == size) {
+         i = 0;
+      }
+      if (i == -1) {
+         i = size - 1;
+      }
+      if (i == here) {
+         return false;
+      }
+
+      if (String_contains_i(getPanelValue(panel, i), mode->buffer)) {
+         Panel_setSelected(panel, i);
+         return true;
+      }
+   }
+}
+
+bool IncSet_next(IncSet* this, IncType type, Panel* panel, IncMode_GetPanelValue getPanelValue) {
+   return IncMode_find(&this->modes[type], panel, getPanelValue, 1);
+}
+
+bool IncSet_prev(IncSet* this, IncType type, Panel* panel, IncMode_GetPanelValue getPanelValue) {
+   return IncMode_find(&this->modes[type], panel, getPanelValue, -1);
+}
+
 bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue getPanelValue, Vector* lines) {
    if (ch == ERR)
       return true;
+
    IncMode* mode = this->active;
    int size = Panel_size(panel);
    bool filterChanged = false;
    bool doSearch = true;
    if (ch == KEY_F(3)) {
-      if (size == 0) return true;
-      int here = Panel_getSelectedIndex(panel);
-      int i = here;
-      for(;;) {
-         i++;
-         if (i == size) i = 0;
-         if (i == here) break;
-         if (String_contains_i(getPanelValue(panel, i), mode->buffer)) {
-            Panel_setSelected(panel, i);
-            break;
-         }
-      }
+      if (size == 0)
+         return true;
+
+      IncMode_find(mode, panel, getPanelValue, 1);
       doSearch = false;
-   } else if (ch < 255 && isprint((char)ch)) {
+   } else if (0 < ch && ch < 255 && isprint((unsigned char)ch)) {
       if (mode->index < INCMODE_MAX) {
          mode->buffer[mode->index] = ch;
          mode->index++;
          mode->buffer[mode->index] = 0;
          if (mode->isFilter) {
             filterChanged = true;
-            if (mode->index == 1) this->filtering = true;
+            if (mode->index == 1) {
+               this->filtering = true;
+            }
          }
       }
    } else if ((ch == KEY_BACKSPACE || ch == 127)) {
@@ -187,11 +196,13 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
             IncMode_reset(mode);
          }
       } else {
+         if (ch == 27) {
             IncMode_reset(mode);
          }
+      }
       this->active = NULL;
       Panel_setDefaultBar(panel);
-      FunctionBar_draw(this->defaultBar, NULL);
+      FunctionBar_draw(this->defaultBar);
       doSearch = false;
    }
    if (doSearch) {
@@ -205,22 +216,20 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
 
 const char* IncSet_getListItemValue(Panel* panel, int i) {
    ListItem* l = (ListItem*) Panel_get(panel, i);
-   if (l)
-      return l->value;
-   return "";
+   return l ? l->value : "";
 }
 
 void IncSet_activate(IncSet* this, IncType type, Panel* panel) {
    this->active = &(this->modes[type]);
-   FunctionBar_draw(this->active->bar, this->active->buffer);
+   FunctionBar_drawExtra(this->active->bar, this->active->buffer, -1, true);
    panel->currentBar = this->active->bar;
 }
 
-void IncSet_drawBar(IncSet* this) {
+void IncSet_drawBar(const IncSet* this) {
    if (this->active) {
-      FunctionBar_draw(this->active->bar, this->active->buffer);
+      FunctionBar_drawExtra(this->active->bar, this->active->buffer, -1, true);
    } else {
-      FunctionBar_draw(this->defaultBar, NULL);
+      FunctionBar_draw(this->defaultBar);
    }
 }
 

IncSet.h

@@ -1,18 +1,18 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_IncSet
 #define HEADER_IncSet
 /*
 htop - IncSet.h
 (C) 2005-2012 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <stdbool.h>
+#include <stddef.h>
 
 #include "FunctionBar.h"
 #include "Panel.h"
-#include <stdbool.h>
+#include "Vector.h"
 
 #define INCMODE_MAX 40
 
@@ -21,8 +21,6 @@ typedef enum {
    INC_FILTER = 1
 } IncType;
 
-#define IncSet_filter(inc_) (inc_->filtering ? inc_->modes[INC_FILTER].buffer : NULL)
-
 typedef struct IncMode_ {
    char buffer[INCMODE_MAX + 1];
    int index;
@@ -38,20 +36,29 @@ typedef struct IncSet_ {
    bool found;
 } IncSet;
 
+static inline const char* IncSet_filter(const IncSet* this) {
+   return this->filtering ? this->modes[INC_FILTER].buffer : NULL;
+}
+
 typedef const char* (*IncMode_GetPanelValue)(Panel*, int);
 
+void IncSet_reset(IncSet* this, IncType type);
 
 IncSet* IncSet_new(FunctionBar* bar);
 
 void IncSet_delete(IncSet* this);
 
+bool IncSet_next(IncSet* this, IncType type, Panel* panel, IncMode_GetPanelValue getPanelValue);
+
+bool IncSet_prev(IncSet* this, IncType type, Panel* panel, IncMode_GetPanelValue getPanelValue);
+
 bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue getPanelValue, Vector* lines);
 
 const char* IncSet_getListItemValue(Panel* panel, int i);
 
 void IncSet_activate(IncSet* this, IncType type, Panel* panel);
 
-void IncSet_drawBar(IncSet* this);
+void IncSet_drawBar(const IncSet* this);
 
 int IncSet_synthesizeEvent(IncSet* this, int x);
 

InfoScreen.c

@@ -1,62 +1,27 @@
+#include "config.h" // IWYU pragma: keep
+
 #include "InfoScreen.h"
 
-#include "config.h"
-#include "Object.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
 #include "CRT.h"
 #include "IncSet.h"
 #include "ListItem.h"
-#include "Platform.h"
-#include "StringUtils.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
 
-/*{
-#include "Process.h"
-#include "Panel.h"
-#include "FunctionBar.h"
-#include "IncSet.h"
+static const char* const InfoScreenFunctions[] = {"Search ", "Filter ", "Refresh", "Done   ", NULL};
 
-typedef struct InfoScreen_ InfoScreen;
-
-typedef void(*InfoScreen_Scan)(InfoScreen*);
-typedef void(*InfoScreen_Draw)(InfoScreen*);
-typedef void(*InfoScreen_OnErr)(InfoScreen*);
-typedef bool(*InfoScreen_OnKey)(InfoScreen*, int);
-
-typedef struct InfoScreenClass_ {
-   ObjectClass super;
-   const InfoScreen_Scan scan;
-   const InfoScreen_Draw draw;
-   const InfoScreen_OnErr onErr;
-   const InfoScreen_OnKey onKey;
-} InfoScreenClass;
-
-#define As_InfoScreen(this_)          ((InfoScreenClass*)(((InfoScreen*)(this_))->super.klass))
-#define InfoScreen_scan(this_)        As_InfoScreen(this_)->scan((InfoScreen*)(this_))
-#define InfoScreen_draw(this_)        As_InfoScreen(this_)->draw((InfoScreen*)(this_))
-#define InfoScreen_onErr(this_)       As_InfoScreen(this_)->onErr((InfoScreen*)(this_))
-#define InfoScreen_onKey(this_, ch_)  As_InfoScreen(this_)->onKey((InfoScreen*)(this_), ch_)
-
-struct InfoScreen_ {
-   Object super;
-   Process* process;
-   Panel* display;
-   FunctionBar* bar;
-   IncSet* inc;
-   Vector* lines;
-};
-}*/
-
-static const char* InfoScreenFunctions[] = {"Search ", "Filter ", "Refresh", "Done   ", NULL};
-
-static const char* InfoScreenKeys[] = {"F3", "F4", "F5", "Esc"};
+static const char* const InfoScreenKeys[] = {"F3", "F4", "F5", "Esc"};
 
 static int InfoScreenEvents[] = {KEY_F(3), KEY_F(4), KEY_F(5), 27};
 
-InfoScreen* InfoScreen_init(InfoScreen* this, Process* process, FunctionBar* bar, int height, char* panelHeader) {
+InfoScreen* InfoScreen_init(InfoScreen* this, const Process* process, FunctionBar* bar, int height, const char* panelHeader) {
    this->process = process;
    if (!bar) {
       bar = FunctionBar_new(InfoScreenFunctions, InfoScreenKeys, InfoScreenEvents);
@@ -75,48 +40,60 @@ InfoScreen* InfoScreen_done(InfoScreen* this) {
    return this;
 }
 
-void InfoScreen_drawTitled(InfoScreen* this, char* fmt, ...) {
+void InfoScreen_drawTitled(InfoScreen* this, const char* fmt, ...) {
    va_list ap;
    va_start(ap, fmt);
+
+   char* title = xMalloc(COLS + 1);
+   int len = vsnprintf(title, COLS + 1, fmt, ap);
+   if (len > COLS) {
+      memset(&title[COLS - 3], '.', 3);
+   }
+
    attrset(CRT_colors[METER_TEXT]);
    mvhline(0, 0, ' ', COLS);
-   wmove(stdscr, 0, 0);
-   vw_printw(stdscr, fmt, ap);
+   mvwprintw(stdscr, 0, 0, title);
    attrset(CRT_colors[DEFAULT_COLOR]);
    this->display->needsRedraw = true;
-   Panel_draw(this->display, true);
+   Panel_draw(this->display, true, true);
    IncSet_drawBar(this->inc);
+   free(title);
    va_end(ap);
 }
 
 void InfoScreen_addLine(InfoScreen* this, const char* line) {
    Vector_add(this->lines, (Object*) ListItem_new(line, 0));
    const char* incFilter = IncSet_filter(this->inc);
-   if (!incFilter || String_contains_i(line, incFilter))
-      Panel_add(this->display, (Object*)Vector_get(this->lines, Vector_size(this->lines)-1));
+   if (!incFilter || String_contains_i(line, incFilter)) {
+      Panel_add(this->display, Vector_get(this->lines, Vector_size(this->lines) - 1));
+   }
 }
 
 void InfoScreen_appendLine(InfoScreen* this, const char* line) {
    ListItem* last = (ListItem*)Vector_get(this->lines, Vector_size(this->lines) - 1);
    ListItem_append(last, line);
    const char* incFilter = IncSet_filter(this->inc);
-   if (incFilter && Panel_get(this->display, Panel_size(this->display)-1) != (Object*)last && String_contains_i(line, incFilter))
+   if (incFilter && Panel_get(this->display, Panel_size(this->display) - 1) != (Object*)last && String_contains_i(line, incFilter)) {
       Panel_add(this->display, (Object*)last);
    }
+}
 
 void InfoScreen_run(InfoScreen* this) {
    Panel* panel = this->display;
 
-   if (As_InfoScreen(this)->scan) InfoScreen_scan(this);
+   if (As_InfoScreen(this)->scan)
+      InfoScreen_scan(this);
+
    InfoScreen_draw(this);
 
    bool looping = true;
    while (looping) {
 
-      Panel_draw(panel, true);
+      Panel_draw(panel, true, true);
 
-      if (this->inc->active)
-         move(LINES-1, CRT_cursorX);
+      if (this->inc->active) {
+         (void) move(LINES - 1, CRT_cursorX);
+      }
       set_escdelay(25);
       int ch = getch();
 
@@ -130,13 +107,15 @@ void InfoScreen_run(InfoScreen* this) {
       if (ch == KEY_MOUSE) {
          MEVENT mevent;
          int ok = getmouse(&mevent);
-         if (ok == OK)
+         if (ok == OK) {
             if (mevent.y >= panel->y && mevent.y < LINES - 1) {
                Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV);
                ch = 0;
-            } if (mevent.y == LINES - 1)
+            } else if (mevent.y == LINES - 1) {
                ch = IncSet_synthesizeEvent(this->inc, mevent.x);
             }
+         }
+      }
 
       if (this->inc->active) {
          IncSet_handleKey(this->inc, ch, panel, IncSet_getListItemValue, this->lines);
@@ -156,20 +135,25 @@ void InfoScreen_run(InfoScreen* this) {
          break;
       case KEY_F(5):
          clear();
-         if (As_InfoScreen(this)->scan) InfoScreen_scan(this);
+         if (As_InfoScreen(this)->scan)
+            InfoScreen_scan(this);
+
          InfoScreen_draw(this);
          break;
       case '\014': // Ctrl+L
          clear();
          InfoScreen_draw(this);
          break;
-      case 'q':
       case 27:
+      case 'q':
       case KEY_F(10):
          looping = false;
          break;
       case KEY_RESIZE:
          Panel_resize(panel, COLS, LINES - 2);
+         if (As_InfoScreen(this)->scan)
+            InfoScreen_scan(this);
+
          InfoScreen_draw(this);
          break;
       default:

InfoScreen.h

@@ -1,14 +1,25 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_InfoScreen
 #define HEADER_InfoScreen
 
-#include "Process.h"
-#include "Panel.h"
+#include <stdbool.h>
+
 #include "FunctionBar.h"
 #include "IncSet.h"
+#include "Macros.h"
+#include "Object.h"
+#include "Panel.h"
+#include "Process.h"
+#include "Vector.h"
 
-typedef struct InfoScreen_ InfoScreen;
+
+typedef struct InfoScreen_ {
+   Object super;
+   const Process* process;
+   Panel* display;
+   FunctionBar* bar;
+   IncSet* inc;
+   Vector* lines;
+} InfoScreen;
 
 typedef void(*InfoScreen_Scan)(InfoScreen*);
 typedef void(*InfoScreen_Draw)(InfoScreen*);
@@ -16,33 +27,25 @@ typedef void(*InfoScreen_OnErr)(InfoScreen*);
 typedef bool(*InfoScreen_OnKey)(InfoScreen*, int);
 
 typedef struct InfoScreenClass_ {
-   ObjectClass super;
+   const ObjectClass super;
    const InfoScreen_Scan scan;
    const InfoScreen_Draw draw;
    const InfoScreen_OnErr onErr;
    const InfoScreen_OnKey onKey;
 } InfoScreenClass;
 
-#define As_InfoScreen(this_)          ((InfoScreenClass*)(((InfoScreen*)(this_))->super.klass))
+#define As_InfoScreen(this_)          ((const InfoScreenClass*)(((InfoScreen*)(this_))->super.klass))
 #define InfoScreen_scan(this_)        As_InfoScreen(this_)->scan((InfoScreen*)(this_))
 #define InfoScreen_draw(this_)        As_InfoScreen(this_)->draw((InfoScreen*)(this_))
 #define InfoScreen_onErr(this_)       As_InfoScreen(this_)->onErr((InfoScreen*)(this_))
 #define InfoScreen_onKey(this_, ch_)  As_InfoScreen(this_)->onKey((InfoScreen*)(this_), ch_)
 
-struct InfoScreen_ {
-   Object super;
-   Process* process;
-   Panel* display;
-   FunctionBar* bar;
-   IncSet* inc;
-   Vector* lines;
-};
-
-InfoScreen* InfoScreen_init(InfoScreen* this, Process* process, FunctionBar* bar, int height, char* panelHeader);
+InfoScreen* InfoScreen_init(InfoScreen* this, const Process* process, FunctionBar* bar, int height, const char* panelHeader);
 
 InfoScreen* InfoScreen_done(InfoScreen* this);
 
-void InfoScreen_drawTitled(InfoScreen* this, char* fmt, ...);
+ATTR_FORMAT(printf, 2, 3)
+void InfoScreen_drawTitled(InfoScreen* this, const char* fmt, ...);
 
 void InfoScreen_addLine(InfoScreen* this, const char* line);
 

ListItem.c

@@ -1,31 +1,22 @@
 /*
 htop - ListItem.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "ListItem.h"
 
-#include "CRT.h"
-#include "StringUtils.h"
-#include "RichString.h"
-
-#include <string.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <string.h>
 
-/*{
-#include "Object.h"
+#include "CRT.h"
+#include "RichString.h"
+#include "XUtils.h"
 
-typedef struct ListItem_ {
-   Object super;
-   char* value;
-   int key;
-   bool moving;
-} ListItem;
-
-}*/
 
 static void ListItem_delete(Object* cast) {
    ListItem* this = (ListItem*)cast;
@@ -33,14 +24,10 @@ static void ListItem_delete(Object* cast) {
    free(this);
 }
 
-static void ListItem_display(Object* cast, RichString* out) {
-   ListItem* const this = (ListItem*)cast;
+static void ListItem_display(const Object* cast, RichString* out) {
+   const ListItem* const this = (const ListItem*)cast;
    assert (this != NULL);
-   /*
-   int len = strlen(this->value)+1;
-   char buffer[len+1];
-   snprintf(buffer, len, "%s", this->value);
-   */
+
    if (this->moving) {
       RichString_write(out, CRT_colors[DEFAULT_COLOR],
 #ifdef HAVE_LIBNCURSESW
@@ -50,15 +37,9 @@ static void ListItem_display(Object* cast, RichString* out) {
    } else {
       RichString_prune(out);
    }
-   RichString_append(out, CRT_colors[DEFAULT_COLOR], this->value/*buffer*/);
+   RichString_append(out, CRT_colors[DEFAULT_COLOR], this->value);
 }
 
-ObjectClass ListItem_class = {
-   .display = ListItem_display,
-   .delete = ListItem_delete,
-   .compare = ListItem_compare
-};
-
 ListItem* ListItem_new(const char* value, int key) {
    ListItem* this = AllocThis(ListItem);
    this->value = xStrdup(value);
@@ -68,21 +49,22 @@ ListItem* ListItem_new(const char* value, int key) {
 }
 
 void ListItem_append(ListItem* this, const char* text) {
-   int oldLen = strlen(this->value);
-   int textLen = strlen(text);
-   int newLen = strlen(this->value) + textLen;
+   size_t oldLen = strlen(this->value);
+   size_t textLen = strlen(text);
+   size_t newLen = oldLen + textLen;
    this->value = xRealloc(this->value, newLen + 1);
    memcpy(this->value + oldLen, text, textLen);
    this->value[newLen] = '\0';
 }
 
-const char* ListItem_getRef(ListItem* this) {
-   return this->value;
-}
-
-long ListItem_compare(const void* cast1, const void* cast2) {
-   ListItem* obj1 = (ListItem*) cast1;
-   ListItem* obj2 = (ListItem*) cast2;
+static long ListItem_compare(const void* cast1, const void* cast2) {
+   const ListItem* obj1 = (const ListItem*) cast1;
+   const ListItem* obj2 = (const ListItem*) cast2;
    return strcmp(obj1->value, obj2->value);
 }
 
+const ObjectClass ListItem_class = {
+   .display = ListItem_display,
+   .delete = ListItem_delete,
+   .compare = ListItem_compare
+};

ListItem.h

@@ -1,14 +1,14 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ListItem
 #define HEADER_ListItem
 /*
 htop - ListItem.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <stdbool.h>
+
 #include "Object.h"
 
 typedef struct ListItem_ {
@@ -18,16 +18,14 @@ typedef struct ListItem_ {
    bool moving;
 } ListItem;
 
-
-extern ObjectClass ListItem_class;
+extern const ObjectClass ListItem_class;
 
 ListItem* ListItem_new(const char* value, int key);
 
 void ListItem_append(ListItem* this, const char* text);
 
-const char* ListItem_getRef(ListItem* this);
-
-long ListItem_compare(const void* cast1, const void* cast2);
-
+static inline const char* ListItem_getRef(const ListItem* this) {
+   return this->value;
+}
 
 #endif

LoadAverageMeter.c

@@ -1,38 +1,42 @@
 /*
 htop - LoadAverageMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "LoadAverageMeter.h"
 
 #include "CRT.h"
+#include "Object.h"
 #include "Platform.h"
+#include "RichString.h"
+#include "XUtils.h"
 
-/*{
-#include "Meter.h"
-}*/
 
-int LoadAverageMeter_attributes[] = {
-   LOAD_AVERAGE_ONE, LOAD_AVERAGE_FIVE, LOAD_AVERAGE_FIFTEEN
+static const int LoadAverageMeter_attributes[] = {
+   LOAD_AVERAGE_ONE,
+   LOAD_AVERAGE_FIVE,
+   LOAD_AVERAGE_FIFTEEN
 };
 
-int LoadMeter_attributes[] = { LOAD };
+static const int LoadMeter_attributes[] = {
+   LOAD
+};
 
 static void LoadAverageMeter_updateValues(Meter* this, char* buffer, int size) {
    Platform_getLoadAverage(&this->values[0], &this->values[1], &this->values[2]);
-   snprintf(buffer, size, "%.2f/%.2f/%.2f", this->values[0], this->values[1], this->values[2]);
+   xSnprintf(buffer, size, "%.2f/%.2f/%.2f", this->values[0], this->values[1], this->values[2]);
 }
 
-static void LoadAverageMeter_display(Object* cast, RichString* out) {
-   Meter* this = (Meter*)cast;
+static void LoadAverageMeter_display(const Object* cast, RichString* out) {
+   const Meter* this = (const Meter*)cast;
    char buffer[20];
-   sprintf(buffer, "%.2f ", this->values[0]);
+   xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
    RichString_write(out, CRT_colors[LOAD_AVERAGE_ONE], buffer);
-   sprintf(buffer, "%.2f ", this->values[1]);
+   xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[1]);
    RichString_append(out, CRT_colors[LOAD_AVERAGE_FIVE], buffer);
-   sprintf(buffer, "%.2f ", this->values[2]);
+   xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[2]);
    RichString_append(out, CRT_colors[LOAD_AVERAGE_FIFTEEN], buffer);
 }
 
@@ -42,17 +46,17 @@ static void LoadMeter_updateValues(Meter* this, char* buffer, int size) {
    if (this->values[0] > this->total) {
       this->total = this->values[0];
    }
-   snprintf(buffer, size, "%.2f", this->values[0]);
+   xSnprintf(buffer, size, "%.2f", this->values[0]);
 }
 
-static void LoadMeter_display(Object* cast, RichString* out) {
-   Meter* this = (Meter*)cast;
+static void LoadMeter_display(const Object* cast, RichString* out) {
+   const Meter* this = (const Meter*)cast;
    char buffer[20];
-   sprintf(buffer, "%.2f ", ((Meter*)this)->values[0]);
+   xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
    RichString_write(out, CRT_colors[LOAD], buffer);
 }
 
-MeterClass LoadAverageMeter_class = {
+const MeterClass LoadAverageMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,
@@ -69,7 +73,7 @@ MeterClass LoadAverageMeter_class = {
    .caption = "Load average: "
 };
 
-MeterClass LoadMeter_class = {
+const MeterClass LoadMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,

LoadAverageMeter.h

@@ -1,22 +1,16 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_LoadAverageMeter
 #define HEADER_LoadAverageMeter
 /*
 htop - LoadAverageMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Meter.h"
 
-extern int LoadAverageMeter_attributes[];
+extern const MeterClass LoadAverageMeter_class;
 
-extern int LoadMeter_attributes[];
-
-extern MeterClass LoadAverageMeter_class;
-
-extern MeterClass LoadMeter_class;
+extern const MeterClass LoadMeter_class;
 
 #endif

Macros.h

@@ -0,0 +1,62 @@
+#ifndef HEADER_Macros
+#define HEADER_Macros
+
+#include <assert.h> // IWYU pragma: keep
+
+#ifndef MINIMUM
+#define MINIMUM(a, b)             ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef MAXIMUM
+#define MAXIMUM(a, b)             ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef CLAMP
+#define CLAMP(x, low, high)       (assert((low) <= (high)), ((x) > (high)) ? (high) : MAXIMUM(x, low))
+#endif
+
+#ifndef ARRAYSIZE
+#define ARRAYSIZE(x)              (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#ifndef SPACESHIP_NUMBER
+#define SPACESHIP_NUMBER(a, b)    (((a) > (b)) - ((a) < (b)))
+#endif
+
+#ifndef SPACESHIP_NULLSTR
+#define SPACESHIP_NULLSTR(a, b)   strcmp((a) ? (a) : "", (b) ? (b) : "")
+#endif
+
+#ifdef  __GNUC__  // defined by GCC and Clang
+
+#define ATTR_FORMAT(type, index, check) __attribute__((format (type, index, check)))
+#define ATTR_NONNULL                    __attribute__((nonnull))
+#define ATTR_NORETURN                   __attribute__((noreturn))
+#define ATTR_UNUSED                     __attribute__((unused))
+
+#else /* __GNUC__ */
+
+#define ATTR_FORMAT(type, index, check)
+#define ATTR_NONNULL
+#define ATTR_NORETURN
+#define ATTR_UNUSED
+
+#endif /* __GNUC__ */
+
+// ignore casts discarding const specifier, e.g.
+//     const char []     ->  char * / void *
+//     const char *[2]'  ->  char *const *
+#ifdef __clang__
+#define IGNORE_WCASTQUAL_BEGIN  _Pragma("clang diagnostic push") \
+                                _Pragma("clang diagnostic ignored \"-Wcast-qual\"")
+#define IGNORE_WCASTQUAL_END    _Pragma("clang diagnostic pop")
+#elif defined(__GNUC__)
+#define IGNORE_WCASTQUAL_BEGIN  _Pragma("GCC diagnostic push") \
+                                _Pragma("GCC diagnostic ignored \"-Wcast-qual\"")
+#define IGNORE_WCASTQUAL_END    _Pragma("GCC diagnostic pop")
+#else
+#define IGNORE_WCASTQUAL_BEGIN
+#define IGNORE_WCASTQUAL_END
+#endif
+
+#endif

MainPanel.c

@@ -1,47 +1,31 @@
 /*
 htop - ColumnsPanel.c
 (C) 2004-2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "MainPanel.h"
-#include "Process.h"
-#include "Platform.h"
-#include "CRT.h"
 
+#include <ctype.h>
 #include <stdlib.h>
 
-/*{
-#include "Panel.h"
-#include "Action.h"
+#include "CRT.h"
+#include "FunctionBar.h"
+#include "Platform.h"
+#include "Process.h"
+#include "ProcessList.h"
+#include "ProvideCurses.h"
 #include "Settings.h"
+#include "XUtils.h"
 
-typedef struct MainPanel_ {
-   Panel super;
-   State* state;
-   IncSet* inc;
-   Htop_Action *keys;
-   pid_t pidSearch;
-} MainPanel;
 
-typedef bool(*MainPanel_ForeachProcessFn)(Process*, size_t);
-
-#define MainPanel_getFunctionBar(this_) (((Panel*)(this_))->defaultBar)
-
-}*/
-
-static const char* MainFunctions[]  = {"Help  ", "Setup ", "Search", "Filter", "Tree  ", "SortBy", "Nice -", "Nice +", "Kill  ", "Quit  ", NULL};
+static const char* const MainFunctions[]  = {"Help  ", "Setup ", "Search", "Filter", "Tree  ", "SortBy", "Nice -", "Nice +", "Kill  ", "Quit  ", NULL};
 
 void MainPanel_updateTreeFunctions(MainPanel* this, bool mode) {
    FunctionBar* bar = MainPanel_getFunctionBar(this);
-   if (mode) {
-      FunctionBar_setLabel(bar, KEY_F(5), "Sorted");
-      FunctionBar_setLabel(bar, KEY_F(6), "Collap");
-   } else {
-      FunctionBar_setLabel(bar, KEY_F(5), "Tree  ");
-      FunctionBar_setLabel(bar, KEY_F(6), "SortBy");
-   }
+   FunctionBar_setLabel(bar, KEY_F(5), mode ? "Sorted" : "Tree  ");
 }
 
 void MainPanel_pidSearch(MainPanel* this, int ch) {
@@ -67,15 +51,17 @@ static HandlerResult MainPanel_eventHandler(Panel* super, int ch) {
 
    Htop_Reaction reaction = HTOP_OK;
 
+   if (ch != ERR)
+      this->state->hideProcessSelection = false;
+
    if (EVENT_IS_HEADER_CLICK(ch)) {
       int x = EVENT_HEADER_CLICK_GET_X(ch);
-      ProcessList* pl = this->state->pl;
+      const ProcessList* pl = this->state->pl;
       Settings* settings = this->state->settings;
       int hx = super->scrollH + x + 1;
       ProcessField field = ProcessList_keyAt(pl, hx);
       if (field == settings->sortKey) {
          Settings_invertSortOrder(settings);
-         settings->treeView = false;
       } else {
          reaction |= Action_setSortKey(settings, field);
       }
@@ -83,21 +69,22 @@ static HandlerResult MainPanel_eventHandler(Panel* super, int ch) {
       result = HANDLED;
    } else if (ch != ERR && this->inc->active) {
       bool filterChanged = IncSet_handleKey(this->inc, ch, super, (IncMode_GetPanelValue) MainPanel_getValue, NULL);
-      if (this->inc->found) {
-         reaction |= Action_follow(this->state);
-      }
       if (filterChanged) {
          this->state->pl->incFilter = IncSet_filter(this->inc);
          reaction = HTOP_REFRESH | HTOP_REDRAW_BAR;
       }
+      if (this->inc->found) {
+         reaction |= Action_follow(this->state);
          reaction |= HTOP_KEEP_FOLLOWING;
+      }
       result = HANDLED;
    } else if (ch == 27) {
+      this->state->hideProcessSelection = true;
       return HANDLED;
    } else if (ch != ERR && ch > 0 && ch < KEY_MAX && this->keys[ch]) {
       reaction |= (this->keys[ch])(this->state);
       result = HANDLED;
-   } else if (isdigit(ch)) {
+   } else if (0 < ch && ch < 255 && isdigit((unsigned char)ch)) {
       MainPanel_pidSearch(this, ch);
    } else {
       if (ch != ERR) {
@@ -110,6 +97,9 @@ static HandlerResult MainPanel_eventHandler(Panel* super, int ch) {
    if (reaction & HTOP_REDRAW_BAR) {
       MainPanel_updateTreeFunctions(this, this->state->settings->treeView);
       IncSet_drawBar(this->inc);
+      if (this->state->pauseProcessUpdate) {
+         FunctionBar_append("PAUSED", CRT_colors[PAUSED]);
+      }
    }
    if (reaction & HTOP_UPDATE_PANELHDR) {
       ProcessList_printHeader(this->state->pl, Panel_getHeader(super));
@@ -143,12 +133,10 @@ int MainPanel_selectedPid(MainPanel* this) {
 
 const char* MainPanel_getValue(MainPanel* this, int i) {
    Process* p = (Process*) Panel_get((Panel*)this, i);
-   if (p)
-      return p->comm;
-   return "";
+   return Process_getCommand(p);
 }
 
-bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, size_t arg, bool* wasAnyTagged) {
+bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, Arg arg, bool* wasAnyTagged) {
    Panel* super = (Panel*) this;
    bool ok = true;
    bool anyTagged = false;
@@ -161,14 +149,18 @@ bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, si
    }
    if (!anyTagged) {
       Process* p = (Process*) Panel_getSelected(super);
-      if (p) ok = fn(p, arg) && ok;
+      if (p) {
+         ok &= fn(p, arg);
       }
+   }
+
    if (wasAnyTagged)
       *wasAnyTagged = anyTagged;
+
    return ok;
 }
 
-PanelClass MainPanel_class = {
+const PanelClass MainPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = MainPanel_delete

MainPanel.h

@@ -1,17 +1,24 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_MainPanel
 #define HEADER_MainPanel
 /*
 htop - ColumnsPanel.h
 (C) 2004-2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Panel.h"
+#include "config.h" // IWYU pragma: keep
+
+#include <stdbool.h>
+#include <sys/types.h>
+
 #include "Action.h"
-#include "Settings.h"
+#include "IncSet.h"
+#include "Object.h"
+#include "Panel.h"
+#include "Process.h"
+
 
 typedef struct MainPanel_ {
    Panel super;
@@ -21,11 +28,10 @@ typedef struct MainPanel_ {
    pid_t pidSearch;
 } MainPanel;
 
-typedef bool(*MainPanel_ForeachProcessFn)(Process*, size_t);
+typedef bool(*MainPanel_ForeachProcessFn)(Process*, Arg);
 
 #define MainPanel_getFunctionBar(this_) (((Panel*)(this_))->defaultBar)
 
-
 void MainPanel_updateTreeFunctions(MainPanel* this, bool mode);
 
 void MainPanel_pidSearch(MainPanel* this, int ch);
@@ -34,11 +40,11 @@ int MainPanel_selectedPid(MainPanel* this);
 
 const char* MainPanel_getValue(MainPanel* this, int i);
 
-bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, size_t arg, bool* wasAnyTagged);
+bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, Arg arg, bool* wasAnyTagged);
 
-extern PanelClass MainPanel_class;
+extern const PanelClass MainPanel_class;
 
-MainPanel* MainPanel_new();
+MainPanel* MainPanel_new(void);
 
 void MainPanel_setState(MainPanel* this, State* state);
 

Makefile.am

@@ -1,107 +1,295 @@
-
-ACLOCAL_AMFLAGS = -I m4
 AUTOMAKE_OPTIONS = subdir-objects
 
 bin_PROGRAMS = htop
 
 dist_man_MANS = htop.1
-EXTRA_DIST = $(dist_man_MANS) htop.desktop htop.png scripts/MakeHeader.py \
+EXTRA_DIST = $(dist_man_MANS) htop.desktop htop.png \
 install-sh autogen.sh missing
 applicationsdir = $(datadir)/applications
 applications_DATA = htop.desktop
 pixmapdir = $(datadir)/pixmaps
 pixmap_DATA = htop.png
 
-htop_CFLAGS = -pedantic -Wall $(wextra_flag) -std=c99 -D_XOPEN_SOURCE_EXTENDED -DSYSCONFDIR=\"$(sysconfdir)\" -I"$(top_srcdir)/$(my_htop_platform)"
-htop_LDFLAGS = 
-AM_CPPFLAGS = -DNDEBUG
+AM_CFLAGS += -pedantic -std=c99 -D_XOPEN_SOURCE_EXTENDED -DSYSCONFDIR=\"$(sysconfdir)\" -I"$(top_srcdir)/$(my_htop_platform)"
+AM_LDFLAGS =
 
-myhtopsources = AvailableMetersPanel.c CategoriesPanel.c CheckItem.c \
-ClockMeter.c ColorsPanel.c ColumnsPanel.c CPUMeter.c CRT.c MainPanel.c \
-DisplayOptionsPanel.c FunctionBar.c Hashtable.c Header.c htop.c ListItem.c \
-LoadAverageMeter.c MemoryMeter.c Meter.c MetersPanel.c Object.c Panel.c \
-BatteryMeter.c Process.c ProcessList.c RichString.c ScreenManager.c Settings.c \
-SignalsPanel.c StringUtils.c SwapMeter.c TasksMeter.c UptimeMeter.c \
-TraceScreen.c UsersTable.c Vector.c AvailableColumnsPanel.c AffinityPanel.c \
-HostnameMeter.c OpenFilesScreen.c Affinity.c IncSet.c Action.c EnvScreen.c \
-InfoScreen.c XAlloc.c
+myhtopsources = \
+	Action.c \
+	Affinity.c \
+	AffinityPanel.c \
+	AvailableColumnsPanel.c \
+	AvailableMetersPanel.c \
+	BatteryMeter.c \
+	CategoriesPanel.c \
+	ClockMeter.c \
+	ColorsPanel.c \
+	ColumnsPanel.c \
+	CommandScreen.c \
+	Compat.c \
+	CPUMeter.c \
+	CRT.c \
+	DateMeter.c \
+	DateTimeMeter.c \
+	DiskIOMeter.c \
+	DisplayOptionsPanel.c \
+	EnvScreen.c \
+	FunctionBar.c \
+	Hashtable.c \
+	Header.c \
+	HostnameMeter.c \
+	htop.c \
+	IncSet.c \
+	InfoScreen.c \
+	ListItem.c \
+	LoadAverageMeter.c \
+	MainPanel.c \
+	MemoryMeter.c \
+	Meter.c \
+	MetersPanel.c \
+	NetworkIOMeter.c \
+	Object.c \
+	OpenFilesScreen.c \
+	OptionItem.c \
+	Panel.c \
+	Process.c \
+	ProcessList.c \
+	ProcessLocksScreen.c \
+	RichString.c \
+	ScreenManager.c \
+	Settings.c \
+	SignalsPanel.c \
+	SwapMeter.c \
+	TasksMeter.c \
+	TraceScreen.c \
+	UptimeMeter.c \
+	UsersTable.c \
+	Vector.c \
+	XUtils.c
 
-myhtopheaders = AvailableColumnsPanel.h AvailableMetersPanel.h \
-CategoriesPanel.h CheckItem.h ClockMeter.h ColorsPanel.h ColumnsPanel.h \
-CPUMeter.h CRT.h MainPanel.h DisplayOptionsPanel.h FunctionBar.h \
-Hashtable.h Header.h htop.h ListItem.h LoadAverageMeter.h MemoryMeter.h \
-BatteryMeter.h Meter.h MetersPanel.h Object.h Panel.h ProcessList.h RichString.h \
-ScreenManager.h Settings.h SignalsPanel.h StringUtils.h SwapMeter.h \
-TasksMeter.h UptimeMeter.h TraceScreen.h UsersTable.h Vector.h Process.h \
-AffinityPanel.h HostnameMeter.h OpenFilesScreen.h Affinity.h IncSet.h Action.h \
-EnvScreen.h InfoScreen.h XAlloc.h
+myhtopheaders = \
+	Action.h \
+	Affinity.h \
+	AffinityPanel.h \
+	AvailableColumnsPanel.h \
+	AvailableMetersPanel.h \
+	BatteryMeter.h \
+	CPUMeter.h \
+	CRT.h \
+	CategoriesPanel.h \
+	ClockMeter.h \
+	ColorsPanel.h \
+	ColumnsPanel.h \
+	CommandScreen.h \
+	Compat.h \
+	DateMeter.h \
+	DateTimeMeter.h \
+	DiskIOMeter.h \
+	DisplayOptionsPanel.h \
+	EnvScreen.h \
+	FunctionBar.h \
+	Hashtable.h \
+	Header.h \
+	HostnameMeter.h \
+	IncSet.h \
+	InfoScreen.h \
+	ListItem.h \
+	LoadAverageMeter.h \
+	Macros.h \
+	MainPanel.h \
+	MemoryMeter.h \
+	Meter.h \
+	MetersPanel.h \
+	NetworkIOMeter.h \
+	Object.h \
+	OpenFilesScreen.h \
+	OptionItem.h \
+	Panel.h \
+	Process.h \
+	ProcessList.h \
+	ProcessLocksScreen.h \
+	ProvideCurses.h \
+	RichString.h \
+	ScreenManager.h \
+	Settings.h \
+	SignalsPanel.h \
+	SwapMeter.h \
+	TasksMeter.h \
+	TraceScreen.h \
+	UptimeMeter.h \
+	UsersTable.h \
+	Vector.h \
+	XUtils.h
+
+# Linux
+# -----
+
+linux_platform_headers = \
+	linux/IOPriority.h \
+	linux/IOPriorityPanel.h \
+	linux/LibSensors.h \
+	linux/LinuxProcess.h \
+	linux/LinuxProcessList.h \
+	linux/Platform.h \
+	linux/PressureStallMeter.h \
+	linux/SELinuxMeter.h \
+	linux/SystemdMeter.h \
+	linux/ZramMeter.h \
+	linux/ZramStats.h \
+	zfs/ZfsArcMeter.h \
+	zfs/ZfsArcStats.h \
+	zfs/ZfsCompressedArcMeter.h
 
 if HTOP_LINUX
-htop_CFLAGS += -rdynamic 
-myhtopplatsources = linux/Platform.c linux/IOPriorityPanel.c linux/IOPriority.c \
-linux/LinuxProcess.c linux/LinuxProcessList.c linux/LinuxCRT.c linux/Battery.c
+AM_LDFLAGS += -rdynamic
+myhtopplatsources = \
+	linux/IOPriorityPanel.c \
+	linux/LibSensors.c \
+	linux/LinuxProcess.c \
+	linux/LinuxProcessList.c \
+	linux/Platform.c \
+	linux/PressureStallMeter.c \
+	linux/SELinuxMeter.c \
+	linux/SystemdMeter.c \
+	linux/ZramMeter.c \
+	zfs/ZfsArcMeter.c \
+	zfs/ZfsArcStats.c \
+	zfs/ZfsCompressedArcMeter.c
 
-myhtopplatheaders = linux/Platform.h linux/IOPriorityPanel.h linux/IOPriority.h \
-linux/LinuxProcess.h linux/LinuxProcessList.h linux/LinuxCRT.h linux/Battery.h
+myhtopplatheaders = $(linux_platform_headers)
 endif
 
+# FreeBSD
+# -------
+
+freebsd_platform_headers = \
+	freebsd/Platform.h \
+	freebsd/FreeBSDProcessList.h \
+	freebsd/FreeBSDProcess.h \
+	zfs/ZfsArcMeter.h \
+	zfs/ZfsCompressedArcMeter.h \
+	zfs/ZfsArcStats.h \
+	zfs/openzfs_sysctl.h
+
 if HTOP_FREEBSD
 myhtopplatsources = freebsd/Platform.c freebsd/FreeBSDProcessList.c \
-freebsd/FreeBSDProcess.c freebsd/FreeBSDCRT.c freebsd/Battery.c
+freebsd/FreeBSDProcess.c \
+zfs/ZfsArcMeter.c zfs/ZfsCompressedArcMeter.c zfs/ZfsArcStats.c zfs/openzfs_sysctl.c
 
-myhtopplatheaders = freebsd/Platform.h freebsd/FreeBSDProcessList.h \
-freebsd/FreeBSDProcess.h freebsd/FreeBSDCRT.h freebsd/Battery.h
+myhtopplatheaders = $(freebsd_platform_headers)
 endif
 
+# DragonFlyBSD
+# ------------
+
+dragonflybsd_platform_headers = \
+	dragonflybsd/Platform.h \
+	dragonflybsd/DragonFlyBSDProcessList.h \
+	dragonflybsd/DragonFlyBSDProcess.h
+
+if HTOP_DRAGONFLYBSD
+AM_LDFLAGS += -lkvm -lkinfo
+myhtopplatsources = dragonflybsd/Platform.c dragonflybsd/DragonFlyBSDProcessList.c \
+dragonflybsd/DragonFlyBSDProcess.c
+
+myhtopplatheaders = $(dragonflybsd_platform_headers)
+endif
+
+# OpenBSD
+# -------
+
+openbsd_platform_headers = \
+	openbsd/Platform.h \
+	openbsd/OpenBSDProcessList.h \
+	openbsd/OpenBSDProcess.h
+
 if HTOP_OPENBSD
 myhtopplatsources = openbsd/Platform.c openbsd/OpenBSDProcessList.c \
-openbsd/OpenBSDProcess.c openbsd/OpenBSDCRT.c openbsd/Battery.c
+openbsd/OpenBSDProcess.c
 
-myhtopplatheaders = openbsd/Platform.h openbsd/OpenBSDProcessList.h \
-openbsd/OpenBSDProcess.h openbsd/OpenBSDCRT.h openbsd/Battery.h
+myhtopplatheaders = $(openbsd_platform_headers)
 endif
 
+# Darwin
+# ------
+
+darwin_platform_headers = \
+	darwin/Platform.h \
+	darwin/DarwinProcess.h \
+	darwin/DarwinProcessList.h \
+	zfs/ZfsArcMeter.h \
+	zfs/ZfsCompressedArcMeter.h \
+	zfs/ZfsArcStats.h \
+	zfs/openzfs_sysctl.h
+
 if HTOP_DARWIN
-htop_LDFLAGS += -framework IOKit -framework CoreFoundation
+AM_LDFLAGS += -framework IOKit -framework CoreFoundation
 myhtopplatsources = darwin/Platform.c darwin/DarwinProcess.c \
-darwin/DarwinProcessList.c darwin/DarwinCRT.c darwin/Battery.c
+darwin/DarwinProcessList.c \
+zfs/ZfsArcMeter.c zfs/ZfsCompressedArcMeter.c zfs/ZfsArcStats.c zfs/openzfs_sysctl.c
 
-myhtopplatheaders = darwin/Platform.h darwin/DarwinProcess.h \
-darwin/DarwinProcessList.h darwin/DarwinCRT.h darwin/Battery.h
+myhtopplatheaders = $(darwin_platform_headers)
 endif
 
+# Solaris
+# -------
+
+solaris_platform_headers = \
+	solaris/Platform.h \
+	solaris/SolarisProcess.h \
+	solaris/SolarisProcessList.h \
+	zfs/ZfsArcMeter.h \
+	zfs/ZfsCompressedArcMeter.h \
+	zfs/ZfsArcStats.h
+
+if HTOP_SOLARIS
+myhtopplatsources = solaris/Platform.c \
+solaris/SolarisProcess.c solaris/SolarisProcessList.c \
+zfs/ZfsArcMeter.c zfs/ZfsCompressedArcMeter.c zfs/ZfsArcStats.c
+
+myhtopplatheaders = $(solaris_platform_headers)
+endif
+
+# Unsupported
+# -----------
+
+unsupported_platform_headers = \
+	unsupported/Platform.h \
+	unsupported/UnsupportedProcess.h \
+	unsupported/UnsupportedProcessList.h
+
 if HTOP_UNSUPPORTED
 myhtopplatsources = unsupported/Platform.c \
-unsupported/UnsupportedProcess.c unsupported/UnsupportedProcessList.c \
-unsupported/UnsupportedCRT.c unsupported/Battery.c
+unsupported/UnsupportedProcess.c unsupported/UnsupportedProcessList.c
 
-myhtopplatheaders = unsupported/Platform.h \
-unsupported/UnsupportedProcess.h unsupported/UnsupportedProcessList.h \
-unsupported/UnsupportedCRT.h unsupported/Battery.h
+myhtopplatheaders = $(unsupported_platform_headers)
 endif
 
-SUFFIXES = .h
+# ----
 
-BUILT_SOURCES = $(myhtopheaders) $(myhtopplatheaders)
-htop_SOURCES  = $(myhtopheaders) $(myhtopplatheaders) $(myhtopsources) $(myhtopplatsources) config.h
+htop_SOURCES  = $(myhtopheaders) $(myhtopplatheaders) $(myhtopsources) $(myhtopplatsources)
+nodist_htop_SOURCES = config.h
 
 target:
 	echo $(htop_SOURCES)
 
 profile:
-	$(MAKE) all CFLAGS="-pg" AM_CPPFLAGS="-pg -O2 -DNDEBUG"
+	$(MAKE) all AM_CPPFLAGS="-pg -O2 -DNDEBUG"
 
 debug:
-	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-ggdb -DDEBUG"
+	$(MAKE) all AM_CPPFLAGS="-ggdb -DDEBUG"
 
 coverage:
-	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-fprofile-arcs -ftest-coverage -DDEBUG" LDFLAGS="-lgcov"
-
-.c.h:
-	@srcdir@/scripts/MakeHeader.py $<
+	$(MAKE) all AM_CPPFLAGS="-fprofile-arcs -ftest-coverage -DDEBUG" AM_LDFLAGS="-lgcov"
 
 cppcheck:
-	cppcheck -q -v . --enable=all -DHAVE_CGROUP -DHAVE_OPENVZ -DHAVE_TASKSTATS
+	cppcheck -q -v . --enable=all -DHAVE_OPENVZ
+
+dist-hook: $(top_distdir)/configure
+	@if grep 'pkg_m4_absent' '$(top_distdir)/configure'; then \
+	   echo 'configure is generated without pkg.m4. Please supply pkg.m4 and run ./autogen.sh to rebuild the configure script.'>&2; \
+	   (exit 1); \
+	else :; \
+	fi
 
 .PHONY: lcov
 

MemoryMeter.c

@@ -1,27 +1,22 @@
 /*
 htop - MemoryMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "MemoryMeter.h"
 
 #include "CRT.h"
+#include "Object.h"
 #include "Platform.h"
+#include "RichString.h"
 
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <sys/param.h>
-#include <assert.h>
 
-/*{
-#include "Meter.h"
-}*/
-
-int MemoryMeter_attributes[] = {
-   MEMORY_USED, MEMORY_BUFFERS, MEMORY_CACHE
+static const int MemoryMeter_attributes[] = {
+   MEMORY_USED,
+   MEMORY_BUFFERS,
+   MEMORY_CACHE
 };
 
 static void MemoryMeter_updateValues(Meter* this, char* buffer, int size) {
@@ -37,9 +32,9 @@ static void MemoryMeter_updateValues(Meter* this, char* buffer, int size) {
    }
 }
 
-static void MemoryMeter_display(Object* cast, RichString* out) {
+static void MemoryMeter_display(const Object* cast, RichString* out) {
    char buffer[50];
-   Meter* this = (Meter*)cast;
+   const Meter* this = (const Meter*)cast;
    RichString_write(out, CRT_colors[METER_TEXT], ":");
    Meter_humanUnit(buffer, this->total, 50);
    RichString_append(out, CRT_colors[METER_VALUE], buffer);
@@ -54,7 +49,7 @@ static void MemoryMeter_display(Object* cast, RichString* out) {
    RichString_append(out, CRT_colors[MEMORY_CACHE], buffer);
 }
 
-MeterClass MemoryMeter_class = {
+const MeterClass MemoryMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,

MemoryMeter.h

@@ -1,18 +1,14 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_MemoryMeter
 #define HEADER_MemoryMeter
 /*
 htop - MemoryMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Meter.h"
 
-extern int MemoryMeter_attributes[];
-
-extern MeterClass MemoryMeter_class;
+extern const MeterClass MemoryMeter_class;
 
 #endif

Meter.c

@@ -1,144 +1,49 @@
 /*
 htop - Meter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "Meter.h"
 
-#include "RichString.h"
-#include "Object.h"
-#include "CRT.h"
-#include "StringUtils.h"
-#include "ListItem.h"
-#include "Settings.h"
-
-#include <math.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
 #include <assert.h>
-#include <sys/time.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
 
-#define METER_BUFFER_LEN 256
+#include "CRT.h"
+#include "Macros.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "RichString.h"
+#include "XUtils.h"
 
-#define GRAPH_DELAY (DEFAULT_DELAY/2)
 
 #define GRAPH_HEIGHT 4 /* Unit: rows (lines) */
 
-/*{
-#include "ListItem.h"
-
-#include <sys/time.h>
-
-typedef struct Meter_ Meter;
-
-typedef void(*Meter_Init)(Meter*);
-typedef void(*Meter_Done)(Meter*);
-typedef void(*Meter_UpdateMode)(Meter*, int);
-typedef void(*Meter_UpdateValues)(Meter*, char*, int);
-typedef void(*Meter_Draw)(Meter*, int, int, int);
-
-typedef struct MeterClass_ {
-   ObjectClass super;
-   const Meter_Init init;
-   const Meter_Done done;
-   const Meter_UpdateMode updateMode;
-   const Meter_Draw draw;
-   const Meter_UpdateValues updateValues;
-   const int defaultMode;
-   const double total;
-   const int* attributes;
-   const char* name;
-   const char* uiName;
-   const char* caption;
-   const char* description;
-   const char maxItems;
-   char curItems;
-} MeterClass;
-
-#define As_Meter(this_)                ((MeterClass*)((this_)->super.klass))
-#define Meter_initFn(this_)            As_Meter(this_)->init
-#define Meter_init(this_)              As_Meter(this_)->init((Meter*)(this_))
-#define Meter_done(this_)              As_Meter(this_)->done((Meter*)(this_))
-#define Meter_updateModeFn(this_)      As_Meter(this_)->updateMode
-#define Meter_updateMode(this_, m_)    As_Meter(this_)->updateMode((Meter*)(this_), m_)
-#define Meter_drawFn(this_)            As_Meter(this_)->draw
-#define Meter_doneFn(this_)            As_Meter(this_)->done
-#define Meter_updateValues(this_, buf_, sz_) \
-                                       As_Meter(this_)->updateValues((Meter*)(this_), buf_, sz_)
-#define Meter_defaultMode(this_)       As_Meter(this_)->defaultMode
-#define Meter_getItems(this_)          As_Meter(this_)->curItems
-#define Meter_setItems(this_, n_)      As_Meter(this_)->curItems = (n_)
-#define Meter_attributes(this_)        As_Meter(this_)->attributes
-#define Meter_name(this_)              As_Meter(this_)->name
-#define Meter_uiName(this_)            As_Meter(this_)->uiName
-
-struct Meter_ {
-   Object super;
-   Meter_Draw draw;
-   
-   char* caption;
-   int mode;
-   int param;
-   void* drawData;
-   int h;
-   struct ProcessList_* pl;
-   double* values;
-   double total;
-};
-
-typedef struct MeterMode_ {
-   Meter_Draw draw;
-   const char* uiName;
-   int h;
-} MeterMode;
-
-typedef enum {
-   CUSTOM_METERMODE = 0,
-   BAR_METERMODE,
-   TEXT_METERMODE,
-   GRAPH_METERMODE,
-   LED_METERMODE,
-   LAST_METERMODE
-} MeterModeId;
-
-typedef struct GraphData_ {
-   struct timeval time;
-   double values[METER_BUFFER_LEN];
-} GraphData;
-
-}*/
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-#ifndef CLAMP
-#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
-#endif
-
-MeterClass Meter_class = {
+const MeterClass Meter_class = {
    .super = {
       .extends = Class(Object)
    }
 };
 
-Meter* Meter_new(struct ProcessList_* pl, int param, MeterClass* type) {
+Meter* Meter_new(const struct ProcessList_* pl, int param, const MeterClass* type) {
    Meter* this = xCalloc(1, sizeof(Meter));
    Object_setClass(this, type);
    this->h = 1;
    this->param = param;
    this->pl = pl;
-   type->curItems = type->maxItems;
-   this->values = xCalloc(type->maxItems, sizeof(double));
+   this->curItems = type->maxItems;
+   this->values = type->maxItems ? xCalloc(type->maxItems, sizeof(double)) : NULL;
    this->total = type->total;
    this->caption = xStrdup(type->caption);
-   if (Meter_initFn(this))
+   if (Meter_initFn(this)) {
       Meter_init(this);
+   }
    Meter_setMode(this, type->defaultMode);
    return this;
 }
@@ -152,7 +57,7 @@ int Meter_humanUnit(char* buffer, unsigned long int value, int size) {
       if (value / 1024 < powi)
          break;
 
-      if (prefix[1] == 0)
+      if (prefix[1] == '\0')
          break;
 
       powi *= 1024;
@@ -177,6 +82,7 @@ int Meter_humanUnit(char* buffer, unsigned long int value, int size) {
 void Meter_delete(Object* cast) {
    if (!cast)
       return;
+
    Meter* this = (Meter*) cast;
    if (Meter_doneFn(this)) {
       Meter_done(this);
@@ -192,7 +98,7 @@ void Meter_setCaption(Meter* this, const char* caption) {
    this->caption = xStrdup(caption);
 }
 
-static inline void Meter_displayBuffer(Meter* this, char* buffer, RichString* out) {
+static inline void Meter_displayBuffer(const Meter* this, const char* buffer, RichString* out) {
    if (Object_displayFn(this)) {
       Object_display(this, out);
    } else {
@@ -201,21 +107,26 @@ static inline void Meter_displayBuffer(Meter* this, char* buffer, RichString* ou
 }
 
 void Meter_setMode(Meter* this, int modeIndex) {
-   if (modeIndex > 0 && modeIndex == this->mode)
+   if (modeIndex > 0 && modeIndex == this->mode) {
       return;
-   if (!modeIndex)
+   }
+
+   if (!modeIndex) {
       modeIndex = 1;
+   }
+
    assert(modeIndex < LAST_METERMODE);
    if (Meter_defaultMode(this) == CUSTOM_METERMODE) {
       this->draw = Meter_drawFn(this);
-      if (Meter_updateModeFn(this))
+      if (Meter_updateModeFn(this)) {
          Meter_updateMode(this, modeIndex);
+      }
    } else {
       assert(modeIndex >= 1);
       free(this->drawData);
       this->drawData = NULL;
 
-      MeterMode* mode = Meter_modes[modeIndex];
+      const MeterMode* mode = Meter_modes[modeIndex];
       this->draw = mode->draw;
       this->h = mode->h;
    }
@@ -223,18 +134,20 @@ void Meter_setMode(Meter* this, int modeIndex) {
 }
 
 ListItem* Meter_toListItem(Meter* this, bool moving) {
-   char mode[21];
-   if (this->mode)
-      snprintf(mode, 20, " [%s]", Meter_modes[this->mode]->uiName);
-   else
+   char mode[20];
+   if (this->mode) {
+      xSnprintf(mode, sizeof(mode), " [%s]", Meter_modes[this->mode]->uiName);
+   } else {
       mode[0] = '\0';
-   char number[11];
-   if (this->param > 0)
-      snprintf(number, 10, " %d", this->param);
-   else
+   }
+   char number[10];
+   if (this->param > 0) {
+      xSnprintf(number, sizeof(number), " %d", this->param);
+   } else {
       number[0] = '\0';
-   char buffer[51];
-   snprintf(buffer, 50, "%s%s%s", Meter_uiName(this), number, mode);
+   }
+   char buffer[50];
+   xSnprintf(buffer, sizeof(buffer), "%s%s%s", Meter_uiName(this), number, mode);
    ListItem* li = ListItem_new(buffer, 0);
    li->moving = moving;
    return li;
@@ -260,7 +173,7 @@ static void TextMeterMode_draw(Meter* this, int x, int y, int w) {
 
 /* ---------- BarMeterMode ---------- */
 
-static char BarMeterMode_characters[] = "|#*@$%&.";
+static const char BarMeterMode_characters[] = "|#*@$%&.";
 
 static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
    char buffer[METER_BUFFER_LEN];
@@ -283,16 +196,22 @@ static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
       attrset(CRT_colors[RESET_COLOR]);
       return;
    }
-   char bar[w + 1];
+
+   // The text in the bar is right aligned;
+   // calculate needed padding and generate leading spaces
+   const int textLen = mbstowcs(NULL, buffer, 0);
+   const int padding = MAXIMUM(w - textLen, 0);
+
+   RichString_begin(bar);
+   RichString_appendChr(&bar, ' ', padding);
+   RichString_append(&bar, 0, buffer);
+   assert(RichString_sizeVal(bar) >= w);
 
    int blockSizes[10];
 
-   snprintf(bar, w + 1, "%*s", w, buffer);
-
    // First draw in the bar[] buffer...
    int offset = 0;
-   int items = Meter_getItems(this);
-   for (int i = 0; i < items; i++) {
+   for (uint8_t i = 0; i < this->curItems; i++) {
       double value = this->values[i];
       value = CLAMP(value, 0.0, this->total);
       if (value > 0) {
@@ -304,11 +223,11 @@ static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
       // (Control against invalid values)
       nextOffset = CLAMP(nextOffset, 0, w);
       for (int j = offset; j < nextOffset; j++)
-         if (bar[j] == ' ') {
+         if (RichString_getCharVal(bar, j) == ' ') {
             if (CRT_colorScheme == COLORSCHEME_MONOCHROME) {
-               bar[j] = BarMeterMode_characters[i];
+               RichString_setChar(&bar, j, BarMeterMode_characters[i]);
             } else {
-               bar[j] = '|';
+               RichString_setChar(&bar, j, '|');
             }
          }
       offset = nextOffset;
@@ -316,17 +235,19 @@ static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
 
    // ...then print the buffer.
    offset = 0;
-   for (int i = 0; i < items; i++) {
+   for (uint8_t i = 0; i < this->curItems; i++) {
       attrset(CRT_colors[Meter_attributes(this)[i]]);
-      mvaddnstr(y, x + offset, bar + offset, blockSizes[i]);
+      RichString_printoffnVal(bar, y, x + offset, offset, blockSizes[i]);
       offset += blockSizes[i];
       offset = CLAMP(offset, 0, w);
    }
    if (offset < w) {
       attrset(CRT_colors[BAR_SHADOW]);
-      mvaddnstr(y, x + offset, bar + offset, w - offset);
+      RichString_printoffnVal(bar, y, x + offset, offset, w - offset);
    }
 
+   RichString_end(bar);
+
    move(y, x + w + 1);
    attrset(CRT_colors[RESET_COLOR]);
 }
@@ -336,7 +257,7 @@ static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
 #ifdef HAVE_LIBNCURSESW
 
 #define PIXPERROW_UTF8 4
-static const char* GraphMeterMode_dotsUtf8[] = {
+static const char* const GraphMeterMode_dotsUtf8[] = {
    /*00*/" ", /*01*/"⢀", /*02*/"⢠", /*03*/"⢰", /*04*/ "⢸",
    /*10*/"⡀", /*11*/"⣀", /*12*/"⣠", /*13*/"⣰", /*14*/ "⣸",
    /*20*/"⡄", /*21*/"⣄", /*22*/"⣤", /*23*/"⣴", /*24*/ "⣼",
@@ -347,19 +268,21 @@ static const char* GraphMeterMode_dotsUtf8[] = {
 #endif
 
 #define PIXPERROW_ASCII 2
-static const char* GraphMeterMode_dotsAscii[] = {
+static const char* const GraphMeterMode_dotsAscii[] = {
    /*00*/" ", /*01*/".", /*02*/":",
    /*10*/".", /*11*/".", /*12*/":",
    /*20*/":", /*21*/":", /*22*/":"
 };
 
-static const char** GraphMeterMode_dots;
+static const char* const* GraphMeterMode_dots;
 static int GraphMeterMode_pixPerRow;
 
 static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
 
-   if (!this->drawData) this->drawData = xCalloc(1, sizeof(GraphData));
-    GraphData* data = (GraphData*) this->drawData;
+   if (!this->drawData) {
+      this->drawData = xCalloc(1, sizeof(GraphData));
+   }
+   GraphData* data = this->drawData;
    const int nValues = METER_BUFFER_LEN;
 
 #ifdef HAVE_LIBNCURSESW
@@ -382,7 +305,8 @@ static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
    struct timeval now;
    gettimeofday(&now, NULL);
    if (!timercmp(&now, &(data->time), <)) {
-      struct timeval delay = { .tv_sec = (int)(CRT_delay/10), .tv_usec = (CRT_delay-((int)(CRT_delay/10)*10)) * 100000 };
+      int globalDelay = this->pl->settings->delay;
+      struct timeval delay = { .tv_sec = globalDelay / 10, .tv_usec = (globalDelay - ((globalDelay / 10) * 10)) * 100000 };
       timeradd(&now, &delay, &(data->time));
 
       for (int i = 0; i < nValues - 1; i++)
@@ -392,8 +316,7 @@ static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
       Meter_updateValues(this, buffer, nValues - 1);
 
       double value = 0.0;
-      int items = Meter_getItems(this);
-      for (int i = 0; i < items; i++)
+      for (uint8_t i = 0; i < this->curItems; i++)
          value += this->values[i];
       value /= this->total;
       data->values[nValues - 1] = value;
@@ -404,10 +327,10 @@ static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
       k = -i / 2;
       i = 0;
    }
-   for (; i < nValues; i+=2, k++) {
+   for (; i < nValues - 1; i += 2, k++) {
       int pix = GraphMeterMode_pixPerRow * GRAPH_HEIGHT;
-      int v1 = CLAMP(data->values[i] * pix, 1, pix);
-      int v2 = CLAMP(data->values[i+1] * pix, 1, pix);
+      int v1 = CLAMP((int) lround(data->values[i] * pix), 1, pix);
+      int v2 = CLAMP((int) lround(data->values[i + 1] * pix), 1, pix);
 
       int colorIdx = GRAPH_1;
       for (int line = 0; line < GRAPH_HEIGHT; line++) {
@@ -424,7 +347,7 @@ static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
 
 /* ---------- LEDMeterMode ---------- */
 
-static const char* LEDMeterMode_digitsAscii[] = {
+static const char* const LEDMeterMode_digitsAscii[] = {
    " __ ", "    ", " __ ", " __ ", "    ", " __ ", " __ ", " __ ", " __ ", " __ ",
    "|  |", "   |", " __|", " __|", "|__|", "|__ ", "|__ ", "   |", "|__|", "|__|",
    "|__|", "   |", "|__ ", " __|", "   |", " __|", "|__|", "   |", "|__|", " __|"
@@ -432,7 +355,7 @@ static const char* LEDMeterMode_digitsAscii[] = {
 
 #ifdef HAVE_LIBNCURSESW
 
-static const char* LEDMeterMode_digitsUtf8[] = {
+static const char* const LEDMeterMode_digitsUtf8[] = {
    "┌──┐", "  ┐ ", "╶──┐", "╶──┐", "╷  ╷", "┌──╴", "┌──╴", "╶──┐", "┌──┐", "┌──┐",
    "│  │", "  │ ", "┌──┘", " ──┤", "└──┤", "└──┐", "├──┐", "   │", "├──┤", "└──┤",
    "└──┘", "  ╵ ", "└──╴", "╶──┘", "   ╵", "╶──┘", "└──┘", "   ╵", "└──┘", " ──┘"
@@ -440,7 +363,7 @@ static const char* LEDMeterMode_digitsUtf8[] = {
 
 #endif
 
-static const char** LEDMeterMode_digits;
+static const char* const* LEDMeterMode_digits;
 
 static void LEDMeterMode_drawDigit(int x, int y, int n) {
    for (int i = 0; i < 3; i++)
@@ -510,7 +433,7 @@ static MeterMode LEDMeterMode = {
    .draw = LEDMeterMode_draw,
 };
 
-MeterMode* Meter_modes[] = {
+const MeterMode* const Meter_modes[] = {
    NULL,
    &BarMeterMode,
    &TextMeterMode,
@@ -523,18 +446,20 @@ MeterMode* Meter_modes[] = {
 
 static void BlankMeter_updateValues(Meter* this, char* buffer, int size) {
    (void) this; (void) buffer; (void) size;
+   if (size > 0) {
+      *buffer = 0;
+   }
 }
 
-static void BlankMeter_display(Object* cast, RichString* out) {
-   (void) cast;
+static void BlankMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
    RichString_prune(out);
 }
 
-int BlankMeter_attributes[] = {
+static const int BlankMeter_attributes[] = {
    DEFAULT_COLOR
 };
 
-MeterClass BlankMeter_class = {
+const MeterClass BlankMeter_class = {
    .super = {
       .extends = Class(Meter),
       .delete = Meter_delete,

Meter.h

@@ -1,24 +1,26 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Meter
 #define HEADER_Meter
 /*
 htop - Meter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#define METER_BUFFER_LEN 256
-
-#define GRAPH_DELAY (DEFAULT_DELAY/2)
-
-#define GRAPH_HEIGHT 4 /* Unit: rows (lines) */
-
-#include "ListItem.h"
+#include "config.h" // IWYU pragma: keep
 
+#include <stdbool.h>
+#include <stdint.h>
 #include <sys/time.h>
 
+#include "ListItem.h"
+#include "Object.h"
+#include "ProcessList.h"
+
+
+#define METER_BUFFER_LEN 256
+
+struct Meter_;
 typedef struct Meter_ Meter;
 
 typedef void(*Meter_Init)(Meter*);
@@ -28,7 +30,7 @@ typedef void(*Meter_UpdateValues)(Meter*, char*, int);
 typedef void(*Meter_Draw)(Meter*, int, int, int);
 
 typedef struct MeterClass_ {
-   ObjectClass super;
+   const ObjectClass super;
    const Meter_Init init;
    const Meter_Done done;
    const Meter_UpdateMode updateMode;
@@ -36,16 +38,15 @@ typedef struct MeterClass_ {
    const Meter_UpdateValues updateValues;
    const int defaultMode;
    const double total;
-   const int* attributes;
-   const char* name;
-   const char* uiName;
-   const char* caption;
-   const char* description;
-   const char maxItems;
-   char curItems;
+   const int* const attributes;
+   const char* const name;                 /* internal name of the meter, must not contain any space */
+   const char* const uiName;               /* display name in header setup menu */
+   const char* const caption;              /* prefix in the actual header */
+   const char* const description;          /* optional meter description in header setup menu */
+   const uint8_t maxItems;
 } MeterClass;
 
-#define As_Meter(this_)                ((MeterClass*)((this_)->super.klass))
+#define As_Meter(this_)                ((const MeterClass*)((this_)->super.klass))
 #define Meter_initFn(this_)            As_Meter(this_)->init
 #define Meter_init(this_)              As_Meter(this_)->init((Meter*)(this_))
 #define Meter_done(this_)              As_Meter(this_)->done((Meter*)(this_))
@@ -56,12 +57,15 @@ typedef struct MeterClass_ {
 #define Meter_updateValues(this_, buf_, sz_) \
                                        As_Meter(this_)->updateValues((Meter*)(this_), buf_, sz_)
 #define Meter_defaultMode(this_)       As_Meter(this_)->defaultMode
-#define Meter_getItems(this_)          As_Meter(this_)->curItems
-#define Meter_setItems(this_, n_)      As_Meter(this_)->curItems = (n_)
 #define Meter_attributes(this_)        As_Meter(this_)->attributes
 #define Meter_name(this_)              As_Meter(this_)->name
 #define Meter_uiName(this_)            As_Meter(this_)->uiName
 
+typedef struct GraphData_ {
+   struct timeval time;
+   double values[METER_BUFFER_LEN];
+} GraphData;
+
 struct Meter_ {
    Object super;
    Meter_Draw draw;
@@ -69,11 +73,13 @@ struct Meter_ {
    char* caption;
    int mode;
    int param;
-   void* drawData;
+   GraphData* drawData;
    int h;
-   struct ProcessList_* pl;
+   const ProcessList* pl;
+   uint8_t curItems;
    double* values;
    double total;
+   void* meterData;
 };
 
 typedef struct MeterMode_ {
@@ -91,25 +97,9 @@ typedef enum {
    LAST_METERMODE
 } MeterModeId;
 
-typedef struct GraphData_ {
-   struct timeval time;
-   double values[METER_BUFFER_LEN];
-} GraphData;
+extern const MeterClass Meter_class;
 
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-#ifndef CLAMP
-#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
-#endif
-
-extern MeterClass Meter_class;
-
-Meter* Meter_new(struct ProcessList_* pl, int param, MeterClass* type);
+Meter* Meter_new(const ProcessList* pl, int param, const MeterClass* type);
 
 int Meter_humanUnit(char* buffer, unsigned long int value, int size);
 
@@ -121,31 +111,8 @@ void Meter_setMode(Meter* this, int modeIndex);
 
 ListItem* Meter_toListItem(Meter* this, bool moving);
 
-/* ---------- TextMeterMode ---------- */
+extern const MeterMode* const Meter_modes[];
 
-/* ---------- BarMeterMode ---------- */
-
-/* ---------- GraphMeterMode ---------- */
-
-#ifdef HAVE_LIBNCURSESW
-
-#define PIXPERROW_UTF8 4
-#endif
-
-#define PIXPERROW_ASCII 2
-
-/* ---------- LEDMeterMode ---------- */
-
-#ifdef HAVE_LIBNCURSESW
-
-#endif
-
-extern MeterMode* Meter_modes[];
-
-/* Blank meter */
-
-extern int BlankMeter_attributes[];
-
-extern MeterClass BlankMeter_class;
+extern const MeterClass BlankMeter_class;
 
 #endif

MetersPanel.c

@@ -1,45 +1,45 @@
 /*
 htop - MetersPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "MetersPanel.h"
 
 #include <stdlib.h>
-#include <assert.h>
+
 #include "CRT.h"
+#include "FunctionBar.h"
+#include "Header.h"
+#include "ListItem.h"
+#include "Meter.h"
+#include "Object.h"
+#include "ProvideCurses.h"
 
-/*{
-#include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
 
-typedef struct MetersPanel_ MetersPanel;
+// Note: In code the meters are known to have bar/text/graph "Modes", but in UI
+// we call them "Styles".
+static const char* const MetersFunctions[] = {"Style ", "Move  ", "                                       ", "Delete", "Done  ", NULL};
+static const char* const MetersKeys[] = {"Space", "Enter", "  ", "Del", "F10"};
+static int MetersEvents[] = {' ', 13, ERR, KEY_DC, KEY_F(10)};
 
-struct MetersPanel_ {
-   Panel super;
-
-   Settings* settings;
-   Vector* meters;
-   ScreenManager* scr;
-   MetersPanel* leftNeighbor;
-   MetersPanel* rightNeighbor;
-   bool moving;
-};
-
-}*/
-
-static const char* MetersFunctions[] = {"Type  ", "Move  ", "Delete", "Done  ", NULL};
-static const char* MetersKeys[] = {"Space", "Enter", "Del", "Esc"};
-static int MetersEvents[] = {' ', 13, KEY_DC, 27};
-
-static const char* MetersMovingFunctions[] = {"Up    ", "Down  ", "Left  ", "Right ",  "Confirm", "Delete", "Done  ", NULL};
-static const char* MetersMovingKeys[] = {"Up", "Dn", "Lt", "Rt", "Enter", "Del", "Esc"};
-static int MetersMovingEvents[] = {KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, 13, KEY_DC, 27};
+// We avoid UTF-8 arrows ← → here as they might display full-width on Chinese
+// terminals, breaking our aligning.
+// In <http://unicode.org/reports/tr11/>, arrows (U+2019..U+2199) are
+// considered "Ambiguous characters".
+static const char* const MetersMovingFunctions[] = {"Style ", "Lock  ", "Up    ", "Down  ", "Left  ", "Right ", "       ", "Delete", "Done  ", NULL};
+static const char* const MetersMovingKeys[] = {"Space", "Enter", "Up", "Dn", "<-", "->", "  ", "Del", "F10"};
+static int MetersMovingEvents[] = {' ', 13, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, ERR, KEY_DC, KEY_F(10)};
 static FunctionBar* Meters_movingBar = NULL;
 
+void MetersPanel_cleanup() {
+   if (Meters_movingBar) {
+      FunctionBar_delete(Meters_movingBar);
+      Meters_movingBar = NULL;
+   }
+}
+
 static void MetersPanel_delete(Object* object) {
    Panel* super = (Panel*) object;
    MetersPanel* this = (MetersPanel*) object;
@@ -61,7 +61,7 @@ void MetersPanel_setMoving(MetersPanel* this, bool moving) {
       Panel_setSelectionColor(super, CRT_colors[PANEL_SELECTION_FOLLOW]);
       super->currentBar = Meters_movingBar;
    }
-   FunctionBar_draw(this->super.currentBar, NULL);
+   FunctionBar_draw(this->super.currentBar);
 }
 
 static inline bool moveToNeighbor(MetersPanel* this, MetersPanel* neighbor, int selected) {
@@ -122,8 +122,8 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
          if (!this->moving) {
             break;
          }
-         /* else fallthrough */
       }
+         /* else fallthrough */
       case KEY_F(7):
       case '[':
       case '-':
@@ -138,8 +138,8 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
          if (!this->moving) {
             break;
          }
-         /* else fallthrough */
       }
+         /* else fallthrough */
       case KEY_F(8):
       case ']':
       case '+':
@@ -183,7 +183,7 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
       }
    }
    if (result == HANDLED || sideMove) {
-      Header* header = (Header*) this->scr->header;
+      Header* header = this->scr->header;
       this->settings->changed = true;
       Header_calculateHeight(header);
       Header_draw(header);
@@ -192,7 +192,7 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
    return result;
 }
 
-PanelClass MetersPanel_class = {
+const PanelClass MetersPanel_class = {
    .super = {
       .extends = Class(Panel),
       .delete = MetersPanel_delete

MetersPanel.h

@@ -1,18 +1,21 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_MetersPanel
 #define HEADER_MetersPanel
 /*
 htop - MetersPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Panel.h"
-#include "Settings.h"
-#include "ScreenManager.h"
+#include <stdbool.h>
 
+#include "Panel.h"
+#include "ScreenManager.h"
+#include "Settings.h"
+#include "Vector.h"
+
+
+struct MetersPanel_;
 typedef struct MetersPanel_ MetersPanel;
 
 struct MetersPanel_ {
@@ -26,11 +29,11 @@ struct MetersPanel_ {
    bool moving;
 };
 
-
+void MetersPanel_cleanup(void);
 
 void MetersPanel_setMoving(MetersPanel* this, bool moving);
 
-extern PanelClass MetersPanel_class;
+extern const PanelClass MetersPanel_class;
 
 MetersPanel* MetersPanel_new(Settings* settings, const char* header, Vector* meters, ScreenManager* scr);
 

NEWS

@@ -2,4 +2,3 @@
 See the commit history for news of the past.
 See the bug tracker for news of the future.
 Run the program for news of the present.
-

NetworkIOMeter.c

@@ -0,0 +1,125 @@
+#include "NetworkIOMeter.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <sys/time.h>
+
+#include "CRT.h"
+#include "Macros.h"
+#include "Object.h"
+#include "Platform.h"
+#include "RichString.h"
+#include "XUtils.h"
+
+
+static const int NetworkIOMeter_attributes[] = {
+   METER_VALUE_IOREAD,
+   METER_VALUE_IOWRITE,
+};
+
+static bool hasData = false;
+
+static unsigned long int cached_rxb_diff = 0;
+static unsigned long int cached_rxp_diff = 0;
+static unsigned long int cached_txb_diff = 0;
+static unsigned long int cached_txp_diff = 0;
+
+static void NetworkIOMeter_updateValues(ATTR_UNUSED Meter* this, char* buffer, int len) {
+   static unsigned long long int cached_last_update = 0;
+
+   struct timeval tv;
+   gettimeofday(&tv, NULL);
+   unsigned long long int timeInMilliSeconds = (unsigned long long int)tv.tv_sec * 1000 + (unsigned long long int)tv.tv_usec / 1000;
+   unsigned long long int passedTimeInMs = timeInMilliSeconds - cached_last_update;
+
+   /* update only every 500ms */
+   if (passedTimeInMs > 500) {
+      static unsigned long int cached_rxb_total = 0;
+      static unsigned long int cached_rxp_total = 0;
+      static unsigned long int cached_txb_total = 0;
+      static unsigned long int cached_txp_total = 0;
+
+      cached_last_update = timeInMilliSeconds;
+
+      unsigned long int bytesReceived, packetsReceived, bytesTransmitted, packetsTransmitted;
+
+      hasData = Platform_getNetworkIO(&bytesReceived, &packetsReceived, &bytesTransmitted, &packetsTransmitted);
+      if (!hasData) {
+         xSnprintf(buffer, len, "no data");
+         return;
+      }
+
+      if (bytesReceived > cached_rxb_total) {
+         cached_rxb_diff = (bytesReceived - cached_rxb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
+         cached_rxb_diff = 1000.0 * cached_rxb_diff / passedTimeInMs; /* convert to per second */
+      } else {
+         cached_rxb_diff = 0;
+      }
+      cached_rxb_total = bytesReceived;
+
+      if (packetsReceived > cached_rxp_total) {
+         cached_rxp_diff = packetsReceived - cached_rxp_total;
+      } else {
+         cached_rxp_diff = 0;
+      }
+      cached_rxp_total = packetsReceived;
+
+      if (bytesTransmitted > cached_txb_total) {
+         cached_txb_diff = (bytesTransmitted - cached_txb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
+         cached_txb_diff = 1000.0 * cached_txb_diff / passedTimeInMs; /* convert to per second */
+      } else {
+         cached_txb_diff = 0;
+      }
+      cached_txb_total = bytesTransmitted;
+
+      if (packetsTransmitted > cached_txp_total) {
+         cached_txp_diff = packetsTransmitted - cached_txp_total;
+      } else {
+         cached_txp_diff = 0;
+      }
+      cached_txp_total = packetsTransmitted;
+   }
+
+   char bufferBytesReceived[12], bufferBytesTransmitted[12];
+   Meter_humanUnit(bufferBytesReceived, cached_rxb_diff, sizeof(bufferBytesReceived));
+   Meter_humanUnit(bufferBytesTransmitted, cached_txb_diff, sizeof(bufferBytesTransmitted));
+   xSnprintf(buffer, len, "rx:%siB/s tx:%siB/s", bufferBytesReceived, bufferBytesTransmitted);
+}
+
+static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
+   if (!hasData) {
+      RichString_write(out, CRT_colors[METER_VALUE_ERROR], "no data");
+      return;
+   }
+
+   char buffer[64];
+
+   RichString_write(out, CRT_colors[METER_TEXT], "rx: ");
+   Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOREAD], buffer);
+   RichString_append(out, CRT_colors[METER_VALUE_IOREAD], "iB/s");
+
+   RichString_append(out, CRT_colors[METER_TEXT], " tx: ");
+   Meter_humanUnit(buffer, cached_txb_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
+   RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
+
+   xSnprintf(buffer, sizeof(buffer), " (%lu/%lu packets) ", cached_rxp_diff, cached_txp_diff);
+   RichString_append(out, CRT_colors[METER_TEXT], buffer);
+}
+
+const MeterClass NetworkIOMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = NetworkIOMeter_display
+   },
+   .updateValues = NetworkIOMeter_updateValues,
+   .defaultMode = TEXT_METERMODE,
+   .maxItems = 0,
+   .total = 100.0,
+   .attributes = NetworkIOMeter_attributes,
+   .name = "NetworkIO",
+   .uiName = "Network IO",
+   .caption = "Network: "
+};

NetworkIOMeter.h

@@ -0,0 +1,8 @@
+#ifndef HEADER_NetworkIOMeter
+#define HEADER_NetworkIOMeter
+
+#include "Meter.h"
+
+extern const MeterClass NetworkIOMeter_class;
+
+#endif /* HEADER_NetworkIOMeter */

Object.c

@@ -1,63 +1,33 @@
 /*
 htop - Object.c
 (C) 2004-2012 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Object.h"
 
-/*{
-#include "RichString.h"
-#include "XAlloc.h"
+#include <stddef.h>
 
-typedef struct Object_ Object;
 
-typedef void(*Object_Display)(Object*, RichString*);
-typedef long(*Object_Compare)(const void*, const void*);
-typedef void(*Object_Delete)(Object*);
-
-#define Object_getClass(obj_)         ((Object*)(obj_))->klass
-#define Object_setClass(obj_, class_) Object_getClass(obj_) = (ObjectClass*) class_
-
-#define Object_delete(obj_)           Object_getClass(obj_)->delete((Object*)(obj_))
-#define Object_displayFn(obj_)        Object_getClass(obj_)->display
-#define Object_display(obj_, str_)    Object_getClass(obj_)->display((Object*)(obj_), str_)
-#define Object_compare(obj_, other_)  Object_getClass(obj_)->compare((const void*)(obj_), other_)
-
-#define Class(class_)                 ((ObjectClass*)(&(class_ ## _class)))
-
-#define AllocThis(class_) (class_*) xMalloc(sizeof(class_)); Object_setClass(this, Class(class_));
- 
-typedef struct ObjectClass_ {
-   const void* extends;
-   const Object_Display display;
-   const Object_Delete delete;
-   const Object_Compare compare;
-} ObjectClass;
-
-struct Object_ {
-   ObjectClass* klass;
-};
-
-}*/
-
-ObjectClass Object_class = {
+const ObjectClass Object_class = {
    .extends = NULL
 };
 
-#ifdef DEBUG
+#ifndef NDEBUG
 
-bool Object_isA(Object* o, const ObjectClass* klass) {
+bool Object_isA(const Object* o, const ObjectClass* klass) {
    if (!o)
       return false;
-   const ObjectClass* type = o->klass;
-   while (type) {
-      if (type == klass)
+
+   for (const ObjectClass* type = o->klass; type; type = type->extends) {
+      if (type == klass) {
          return true;
-      type = type->extends;
       }
+   }
+
    return false;
 }
 
-#endif
+#endif /* NDEBUG */

Object.h

@@ -1,53 +1,66 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Object
 #define HEADER_Object
 /*
 htop - Object.h
 (C) 2004-2012 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "RichString.h"
-#include "XAlloc.h"
+#include "config.h" // IWYU pragma: keep
 
+#include <assert.h>
+
+#include "RichString.h"
+#include "XUtils.h" // IWYU pragma: keep
+
+#ifndef NDEBUG
+#include <stdbool.h>
+#endif
+
+
+struct Object_;
 typedef struct Object_ Object;
 
-typedef void(*Object_Display)(Object*, RichString*);
+typedef void(*Object_Display)(const Object*, RichString*);
 typedef long(*Object_Compare)(const void*, const void*);
 typedef void(*Object_Delete)(Object*);
 
-#define Object_getClass(obj_)         ((Object*)(obj_))->klass
-#define Object_setClass(obj_, class_) Object_getClass(obj_) = (ObjectClass*) class_
+#define Object_getClass(obj_)         ((const Object*)(obj_))->klass
+#define Object_setClass(obj_, class_) (((Object*)(obj_))->klass = (const ObjectClass*) (class_))
 
-#define Object_delete(obj_)           Object_getClass(obj_)->delete((Object*)(obj_))
+#define Object_delete(obj_)           (assert(Object_getClass(obj_)->delete), Object_getClass(obj_)->delete((Object*)(obj_)))
 #define Object_displayFn(obj_)        Object_getClass(obj_)->display
-#define Object_display(obj_, str_)    Object_getClass(obj_)->display((Object*)(obj_), str_)
-#define Object_compare(obj_, other_)  Object_getClass(obj_)->compare((const void*)(obj_), other_)
+#define Object_display(obj_, str_)    (assert(Object_getClass(obj_)->display), Object_getClass(obj_)->display((const Object*)(obj_), str_))
+#define Object_compare(obj_, other_)  (assert(Object_getClass(obj_)->compare), Object_getClass(obj_)->compare((const void*)(obj_), other_))
 
-#define Class(class_)                 ((ObjectClass*)(&(class_ ## _class)))
+#define Class(class_)                 ((const ObjectClass*)(&(class_ ## _class)))
 
-#define AllocThis(class_) (class_*) xMalloc(sizeof(class_)); Object_setClass(this, Class(class_));
+#define AllocThis(class_) (class_*)   xMalloc(sizeof(class_)); Object_setClass(this, Class(class_))
 
 typedef struct ObjectClass_ {
-   const void* extends;
+   const void* const extends;
    const Object_Display display;
    const Object_Delete delete;
    const Object_Compare compare;
 } ObjectClass;
 
 struct Object_ {
-   ObjectClass* klass;
+   const ObjectClass* klass;
 };
 
+typedef union {
+   int i;
+   void* v;
+} Arg;
 
-extern ObjectClass Object_class;
+extern const ObjectClass Object_class;
 
-#ifdef DEBUG
+#ifndef NDEBUG
 
-bool Object_isA(Object* o, const ObjectClass* klass);
-
-#endif
+bool Object_isA(const Object* o, const ObjectClass* klass);
+
+#endif /* NDEBUG */
 
 #endif

OpenFilesScreen.c

@@ -1,33 +1,31 @@
 /*
 htop - OpenFilesScreen.c
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "OpenFilesScreen.h"
 
-#include "CRT.h"
-#include "ProcessList.h"
-#include "IncSet.h"
-#include "StringUtils.h"
-#include "FunctionBar.h"
-
-#include <string.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <stdlib.h>
 #include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 
-/*{
-#include "InfoScreen.h"
+#include "Macros.h"
+#include "Panel.h"
+#include "ProvideCurses.h"
+#include "Vector.h"
+#include "XUtils.h"
+
 
 typedef struct OpenFiles_Data_ {
-   char* data[256];
+   char* data[7];
 } OpenFiles_Data;
 
 typedef struct OpenFiles_ProcessData_ {
@@ -41,49 +39,93 @@ typedef struct OpenFiles_FileData_ {
    struct OpenFiles_FileData_* next;
 } OpenFiles_FileData;
 
-typedef struct OpenFilesScreen_ {
-   InfoScreen super;
-   pid_t pid;
-} OpenFilesScreen;
+static size_t getIndexForType(char type) {
+   switch (type) {
+   case 'f':
+      return 0;
+   case 'a':
+      return 1;
+   case 'D':
+      return 2;
+   case 'i':
+      return 3;
+   case 'n':
+      return 4;
+   case 's':
+      return 5;
+   case 't':
+      return 6;
+   }
 
-}*/
+   /* should never reach here */
+   abort();
+}
 
-InfoScreenClass OpenFilesScreen_class = {
-   .super = {
-      .extends = Class(Object),
-      .delete = OpenFilesScreen_delete
-   },
-   .scan = OpenFilesScreen_scan,
-   .draw = OpenFilesScreen_draw
-};
+static const char* getDataForType(const OpenFiles_Data* data, char type) {
+   size_t index = getIndexForType(type);
+   return data->data[index] ? data->data[index] : "";
+}
 
-OpenFilesScreen* OpenFilesScreen_new(Process* process) {
+OpenFilesScreen* OpenFilesScreen_new(const Process* process) {
    OpenFilesScreen* this = xMalloc(sizeof(OpenFilesScreen));
    Object_setClass(this, Class(OpenFilesScreen));
-   if (Process_isThread(process))
+   if (Process_isThread(process)) {
       this->pid = process->tgid;
-   else
+   } else {
       this->pid = process->pid;
-   return (OpenFilesScreen*) InfoScreen_init(&this->super, process, NULL, LINES-3, "   FD TYPE     DEVICE       SIZE       NODE NAME");
+   }
+   return (OpenFilesScreen*) InfoScreen_init(&this->super, process, NULL, LINES - 3, "   FD TYPE    MODE DEVICE           SIZE       NODE  NAME");
 }
 
 void OpenFilesScreen_delete(Object* this) {
    free(InfoScreen_done((InfoScreen*)this));
 }
 
-void OpenFilesScreen_draw(InfoScreen* this) {
-   InfoScreen_drawTitled(this, "Snapshot of files open in process %d - %s", ((OpenFilesScreen*)this)->pid, this->process->comm);
+static void OpenFilesScreen_draw(InfoScreen* this) {
+   InfoScreen_drawTitled(this, "Snapshot of files open in process %d - %s", ((OpenFilesScreen*)this)->pid, Process_getCommand(this->process));
 }
 
 static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
-   char command[1025];
-   snprintf(command, 1024, "lsof -P -p %d -F 2> /dev/null", pid);
-   FILE* fd = popen(command, "r");
    OpenFiles_ProcessData* pdata = xCalloc(1, sizeof(OpenFiles_ProcessData));
-   OpenFiles_FileData* fdata = NULL;
+
+   int fdpair[2] = {0, 0};
+   if (pipe(fdpair) == -1) {
+      pdata->error = 1;
+      return pdata;
+   }
+
+   pid_t child = fork();
+   if (child == -1) {
+      close(fdpair[1]);
+      close(fdpair[0]);
+      pdata->error = 1;
+      return pdata;
+   }
+
+   if (child == 0) {
+      close(fdpair[0]);
+      dup2(fdpair[1], STDOUT_FILENO);
+      close(fdpair[1]);
+      int fdnull = open("/dev/null", O_WRONLY);
+      if (fdnull < 0) {
+         exit(1);
+      }
+
+      dup2(fdnull, STDERR_FILENO);
+      close(fdnull);
+      char buffer[32] = {0};
+      xSnprintf(buffer, sizeof(buffer), "%d", pid);
+      execlp("lsof", "lsof", "-P", "-p", buffer, "-F", NULL);
+      exit(127);
+   }
+   close(fdpair[1]);
+
    OpenFiles_Data* item = &(pdata->data);
+   OpenFiles_FileData* fdata = NULL;
+
+   FILE* fd = fdopen(fdpair[0], "r");
    if (!fd) {
-      pdata->error = 127;
+      pdata->error = 1;
       return pdata;
    }
    for (;;) {
@@ -91,8 +133,11 @@ static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
       if (!line) {
          break;
       }
+
       unsigned char cmd = line[0];
-      if (cmd == 'f') {
+      switch (cmd) {
+      case 'f':  /* file descriptor */
+      {
          OpenFiles_FileData* nextFile = xCalloc(1, sizeof(OpenFiles_FileData));
          if (fdata == NULL) {
             pdata->files = nextFile;
@@ -101,22 +146,60 @@ static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
          }
          fdata = nextFile;
          item = &(fdata->data);
+      } /* FALLTHRU */
+      case 'a':  /* file access mode */
+      case 'D':  /* file's major/minor device number */
+      case 'i':  /* file's inode number */
+      case 'n':  /* file name, comment, Internet address */
+      case 's':  /* file's size */
+      case 't':  /* file's type */
+      {
+         size_t index = getIndexForType(cmd);
+         free(item->data[index]);
+         item->data[index] = xStrdup(line + 1);
+         break;
+      }
+      case 'c':  /* process command name  */
+      case 'd':  /* file's device character code */
+      case 'g':  /* process group ID */
+      case 'G':  /* file flags */
+      case 'k':  /* link count */
+      case 'l':  /* file's lock status */
+      case 'L':  /* process login name */
+      case 'o':  /* file's offset */
+      case 'p':  /* process ID */
+      case 'P':  /* protocol name */
+      case 'R':  /* parent process ID */
+      case 'T':  /* TCP/TPI information, identified by prefixes */
+      case 'u':  /* process user ID */
+         /* ignore */
+         break;
       }
-      assert(cmd >= 0 && cmd <= 0xff);
-      item->data[cmd] = xStrdup(line + 1);
       free(line);
    }
-   pdata->error = pclose(fd);
+   fclose(fd);
+
+   int wstatus;
+   if (waitpid(child, &wstatus, 0) == -1) {
+      pdata->error = 1;
       return pdata;
    }
 
-static inline void OpenFiles_Data_clear(OpenFiles_Data* data) {
-   for (int i = 0; i < 255; i++)
-      if (data->data[i])
+   if (!WIFEXITED(wstatus)) {
+      pdata->error = 1;
+   } else {
+      pdata->error = WEXITSTATUS(wstatus);
+   }
+
+   return pdata;
+}
+
+static void OpenFiles_Data_clear(OpenFiles_Data* data) {
+   for (size_t i = 0; i < ARRAYSIZE(data->data); i++)
       free(data->data[i]);
 }
 
-void OpenFilesScreen_scan(InfoScreen* this) {
+static void OpenFilesScreen_scan(InfoScreen* this) {
    Panel* panel = this->display;
    int idx = Panel_getSelectedIndex(panel);
    Panel_prune(panel);
@@ -128,19 +211,20 @@ void OpenFilesScreen_scan(InfoScreen* this) {
    } else {
       OpenFiles_FileData* fdata = pdata->files;
       while (fdata) {
-         char** data = fdata->data.data;
-         int lenN = data['n'] ? strlen(data['n']) : 0;
-         int sizeEntry = 5 + 7 + 10 + 10 + 10 + lenN + 5 /*spaces*/ + 1 /*null*/;
-         char* entry = xMalloc(sizeEntry);
-         snprintf(entry, sizeEntry, "%5.5s %7.7s %10.10s %10.10s %10.10s %s",
-            data['f'] ? data['f'] : "",
-            data['t'] ? data['t'] : "",
-            data['D'] ? data['D'] : "",
-            data['s'] ? data['s'] : "",
-            data['i'] ? data['i'] : "",
-            data['n'] ? data['n'] : "");
+         OpenFiles_Data* data = &fdata->data;
+         size_t lenN = strlen(getDataForType(data, 'n'));
+         size_t sizeEntry = 5 + 7 + 4 + 10 + 10 + 10 + lenN + 7 /*spaces*/ + 1 /*null*/;
+         char entry[sizeEntry];
+         xSnprintf(entry, sizeof(entry), "%5.5s %-7.7s %-4.4s %-10.10s %10.10s %10.10s  %s",
+                   getDataForType(data, 'f'),
+                   getDataForType(data, 't'),
+                   getDataForType(data, 'a'),
+                   getDataForType(data, 'D'),
+                   getDataForType(data, 's'),
+                   getDataForType(data, 'i'),
+                   getDataForType(data, 'n'));
          InfoScreen_addLine(this, entry);
-         OpenFiles_Data_clear(&fdata->data);
+         OpenFiles_Data_clear(data);
          OpenFiles_FileData* old = fdata;
          fdata = fdata->next;
          free(old);
@@ -152,3 +236,12 @@ void OpenFilesScreen_scan(InfoScreen* this) {
    Vector_insertionSort(panel->items);
    Panel_setSelected(panel, idx);
 }
+
+const InfoScreenClass OpenFilesScreen_class = {
+   .super = {
+      .extends = Class(Object),
+      .delete = OpenFilesScreen_delete
+   },
+   .scan = OpenFilesScreen_scan,
+   .draw = OpenFilesScreen_draw
+};

OpenFilesScreen.h

@@ -1,45 +1,27 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_OpenFilesScreen
 #define HEADER_OpenFilesScreen
 /*
 htop - OpenFilesScreen.h
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <sys/types.h>
+
 #include "InfoScreen.h"
-
-typedef struct OpenFiles_Data_ {
-   char* data[256];
-} OpenFiles_Data;
-
-typedef struct OpenFiles_ProcessData_ {
-   OpenFiles_Data data;
-   int error;
-   struct OpenFiles_FileData_* files;
-} OpenFiles_ProcessData;
-
-typedef struct OpenFiles_FileData_ {
-   OpenFiles_Data data;
-   struct OpenFiles_FileData_* next;
-} OpenFiles_FileData;
+#include "Object.h"
+#include "Process.h"
 
 typedef struct OpenFilesScreen_ {
    InfoScreen super;
    pid_t pid;
 } OpenFilesScreen;
 
+extern const InfoScreenClass OpenFilesScreen_class;
 
-extern InfoScreenClass OpenFilesScreen_class;
-
-OpenFilesScreen* OpenFilesScreen_new(Process* process);
+OpenFilesScreen* OpenFilesScreen_new(const Process* process);
 
 void OpenFilesScreen_delete(Object* this);
 
-void OpenFilesScreen_draw(InfoScreen* this);
-
-void OpenFilesScreen_scan(InfoScreen* this);
-
 #endif

OptionItem.c

@@ -0,0 +1,189 @@
+/*
+htop - OptionItem.c
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "OptionItem.h"
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+
+#include "CRT.h"
+#include "RichString.h"
+
+
+static void OptionItem_delete(Object* cast) {
+   OptionItem* this = (OptionItem*)cast;
+   assert (this != NULL);
+
+   free(this->text);
+   free(this);
+}
+
+static void CheckItem_display(const Object* cast, RichString* out) {
+   const CheckItem* this = (const CheckItem*)cast;
+   assert (this != NULL);
+
+   RichString_write(out, CRT_colors[CHECK_BOX], "[");
+   if (CheckItem_get(this)) {
+      RichString_append(out, CRT_colors[CHECK_MARK], "x");
+   } else {
+      RichString_append(out, CRT_colors[CHECK_MARK], " ");
+   }
+   RichString_append(out, CRT_colors[CHECK_BOX], "]    ");
+   RichString_append(out, CRT_colors[CHECK_TEXT], this->super.text);
+}
+
+static void NumberItem_display(const Object* cast, RichString* out) {
+   const NumberItem* this = (const NumberItem*)cast;
+   assert (this != NULL);
+
+   char buffer[12];
+   RichString_write(out, CRT_colors[CHECK_BOX], "[");
+   int written;
+   if (this->scale < 0) {
+      written = xSnprintf(buffer, sizeof(buffer), "%.*f", -this->scale, pow(10, this->scale) * NumberItem_get(this));
+   } else if (this->scale > 0) {
+      written = xSnprintf(buffer, sizeof(buffer), "%d", (int) (pow(10, this->scale) * NumberItem_get(this)));
+   } else {
+      written = xSnprintf(buffer, sizeof(buffer), "%d", NumberItem_get(this));
+   }
+   RichString_append(out, CRT_colors[CHECK_MARK], buffer);
+   RichString_append(out, CRT_colors[CHECK_BOX], "]");
+   for (int i = written; i < 5; i++) {
+      RichString_append(out, CRT_colors[CHECK_BOX], " ");
+   }
+   RichString_append(out, CRT_colors[CHECK_TEXT], this->super.text);
+}
+
+const OptionItemClass OptionItem_class = {
+   .super = {
+      .extends = Class(Object),
+      .delete = OptionItem_delete
+   }
+};
+
+const OptionItemClass CheckItem_class = {
+   .super = {
+      .extends = Class(OptionItem),
+      .delete = OptionItem_delete,
+      .display = CheckItem_display
+   },
+   .kind = OPTION_ITEM_CHECK
+};
+
+const OptionItemClass NumberItem_class = {
+   .super = {
+      .extends = Class(OptionItem),
+      .delete = OptionItem_delete,
+      .display = NumberItem_display
+   },
+   .kind = OPTION_ITEM_NUMBER
+};
+
+CheckItem* CheckItem_newByRef(const char* text, bool* ref) {
+   CheckItem* this = AllocThis(CheckItem);
+   this->super.text = xStrdup(text);
+   this->value = false;
+   this->ref = ref;
+   return this;
+}
+
+CheckItem* CheckItem_newByVal(const char* text, bool value) {
+   CheckItem* this = AllocThis(CheckItem);
+   this->super.text = xStrdup(text);
+   this->value = value;
+   this->ref = NULL;
+   return this;
+}
+
+bool CheckItem_get(const CheckItem* this) {
+   if (this->ref) {
+      return *(this->ref);
+   } else {
+      return this->value;
+   }
+}
+
+void CheckItem_set(CheckItem* this, bool value) {
+   if (this->ref) {
+      *(this->ref) = value;
+   } else {
+      this->value = value;
+   }
+}
+
+void CheckItem_toggle(CheckItem* this) {
+   if (this->ref) {
+      *(this->ref) = !*(this->ref);
+   } else {
+      this->value = !this->value;
+   }
+}
+
+NumberItem* NumberItem_newByRef(const char* text, int* ref, int scale, int min, int max) {
+   assert(min <= max);
+
+   NumberItem* this = AllocThis(NumberItem);
+   this->super.text = xStrdup(text);
+   this->value = 0;
+   this->ref = ref;
+   this->scale = scale;
+   this->min = min;
+   this->max = max;
+   return this;
+}
+
+NumberItem* NumberItem_newByVal(const char* text, int value, int scale, int min, int max) {
+   assert(min <= max);
+
+   NumberItem* this = AllocThis(NumberItem);
+   this->super.text = xStrdup(text);
+   this->value = CLAMP(value, min, max);
+   this->ref = NULL;
+   this->scale = scale;
+   this->min = min;
+   this->max = max;
+   return this;
+}
+
+int NumberItem_get(const NumberItem* this) {
+   if (this->ref) {
+      return *(this->ref);
+   } else {
+      return this->value;
+   }
+}
+
+void NumberItem_decrease(NumberItem* this) {
+   if (this->ref) {
+      *(this->ref) = CLAMP(*(this->ref) - 1, this->min, this->max);
+   } else {
+      this->value = CLAMP(this->value - 1, this->min, this->max);
+   }
+}
+
+void NumberItem_increase(NumberItem* this) {
+   if (this->ref) {
+      *(this->ref) = CLAMP(*(this->ref) + 1, this->min, this->max);
+   } else {
+      this->value = CLAMP(this->value + 1, this->min, this->max);
+   }
+}
+
+void NumberItem_toggle(NumberItem* this) {
+   if (this->ref) {
+      if (*(this->ref) >= this->max)
+         *(this->ref) = this->min;
+      else
+         *(this->ref) += 1;
+   } else {
+      if (this->value >= this->max)
+         this->value = this->min;
+      else
+         this->value += 1;
+   }
+}

OptionItem.h

@@ -0,0 +1,70 @@
+#ifndef HEADER_OptionItem
+#define HEADER_OptionItem
+/*
+htop - OptionItem.h
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include <stdbool.h>
+
+#include "Object.h"
+
+
+enum OptionItemType {
+   OPTION_ITEM_CHECK,
+   OPTION_ITEM_NUMBER,
+};
+
+typedef struct OptionItemClass_ {
+   const ObjectClass super;
+
+   enum OptionItemType kind;
+} OptionItemClass;
+
+#define As_OptionItem(this_)                ((const OptionItemClass*)((this_)->super.klass))
+#define OptionItem_kind(this_)              As_OptionItem(this_)->kind
+
+typedef struct OptionItem_ {
+   Object super;
+
+   char* text;
+} OptionItem;
+
+typedef struct CheckItem_ {
+   OptionItem super;
+
+   bool* ref;
+   bool value;
+} CheckItem;
+
+typedef struct NumberItem_ {
+   OptionItem super;
+
+   char* text;
+   int* ref;
+   int value;
+   int scale;
+   int min;
+   int max;
+} NumberItem;
+
+extern const OptionItemClass OptionItem_class;
+extern const OptionItemClass CheckItem_class;
+extern const OptionItemClass NumberItem_class;
+
+CheckItem* CheckItem_newByRef(const char* text, bool* ref);
+CheckItem* CheckItem_newByVal(const char* text, bool value);
+bool CheckItem_get(const CheckItem* this);
+void CheckItem_set(CheckItem* this, bool value);
+void CheckItem_toggle(CheckItem* this);
+
+NumberItem* NumberItem_newByRef(const char* text, int* ref, int scale, int min, int max);
+NumberItem* NumberItem_newByVal(const char* text, int value, int scale, int min, int max);
+int NumberItem_get(const NumberItem* this);
+void NumberItem_decrease(NumberItem* this);
+void NumberItem_increase(NumberItem* this);
+void NumberItem_toggle(NumberItem* this);
+
+#endif

Panel.c

@@ -1,91 +1,28 @@
 /*
 htop - Panel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Panel.h"
 
-#include "CRT.h"
-#include "RichString.h"
-#include "ListItem.h"
-#include "StringUtils.h"
-
-#include <math.h>
+#include <assert.h>
+#include <ctype.h>
 #include <stdbool.h>
 #include <stdlib.h>
-#include <ctype.h>
 #include <string.h>
-#include <assert.h>
+#include <strings.h>
 
-//#link curses
+#include "CRT.h"
+#include "ListItem.h"
+#include "Macros.h"
+#include "ProvideCurses.h"
+#include "RichString.h"
+#include "XUtils.h"
 
-/*{
-#include "Object.h"
-#include "Vector.h"
-#include "FunctionBar.h"
 
-typedef struct Panel_ Panel;
-
-typedef enum HandlerResult_ {
-   HANDLED     = 0x01,
-   IGNORED     = 0x02,
-   BREAK_LOOP  = 0x04,
-   REDRAW      = 0x08,
-   RESCAN      = 0x10,
-   SYNTH_KEY   = 0x20,
-} HandlerResult;
-
-#define EVENT_SET_SELECTED -1
-
-#define EVENT_HEADER_CLICK(x_) (-10000 + x_)
-#define EVENT_IS_HEADER_CLICK(ev_) (ev_ >= -10000 && ev_ <= -9000)
-#define EVENT_HEADER_CLICK_GET_X(ev_) (ev_ + 10000)
-
-typedef HandlerResult(*Panel_EventHandler)(Panel*, int);
-
-typedef struct PanelClass_ {
-   const ObjectClass super;
-   const Panel_EventHandler eventHandler;
-} PanelClass;
-
-#define As_Panel(this_)                ((PanelClass*)((this_)->super.klass))
-#define Panel_eventHandlerFn(this_)    As_Panel(this_)->eventHandler
-#define Panel_eventHandler(this_, ev_) As_Panel(this_)->eventHandler((Panel*)(this_), ev_)
-
-struct Panel_ {
-   Object super;
-   int x, y, w, h;
-   WINDOW* window;
-   Vector* items;
-   int selected;
-   int oldSelected;
-   int selectedLen;
-   void* eventHandlerState;
-   int scrollV;
-   short scrollH;
-   bool needsRedraw;
-   FunctionBar* currentBar;
-   FunctionBar* defaultBar;
-   RichString header;
-   int selectionColor;
-};
-
-#define Panel_setDefaultBar(this_) do{ (this_)->currentBar = (this_)->defaultBar; }while(0)
-
-}*/
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
-#define KEY_CTRL(l) ((l)-'A'+1)
-
-PanelClass Panel_class = {
+const PanelClass Panel_class = {
    .super = {
       .extends = Class(Object),
       .delete = Panel_delete
@@ -93,7 +30,7 @@ PanelClass Panel_class = {
    .eventHandler = Panel_selectByTyping,
 };
 
-Panel* Panel_new(int x, int y, int w, int h, bool owner, ObjectClass* type, FunctionBar* fuBar) {
+Panel* Panel_new(int x, int y, int w, int h, bool owner, const ObjectClass* type, FunctionBar* fuBar) {
    Panel* this;
    this = xMalloc(sizeof(Panel));
    Object_setClass(this, Class(Panel));
@@ -107,7 +44,7 @@ void Panel_delete(Object* cast) {
    free(this);
 }
 
-void Panel_init(Panel* this, int x, int y, int w, int h, ObjectClass* type, bool owner, FunctionBar* fuBar) {
+void Panel_init(Panel* this, int x, int y, int w, int h, const ObjectClass* type, bool owner, FunctionBar* fuBar) {
    this->x = x;
    this->y = y;
    this->w = w;
@@ -160,8 +97,10 @@ void Panel_move(Panel* this, int x, int y) {
 void Panel_resize(Panel* this, int w, int h) {
    assert (this != NULL);
 
-   if (RichString_sizeVal(this->header) > 0)
+   if (RichString_sizeVal(this->header) > 0) {
       h--;
+   }
+
    this->w = w;
    this->h = h;
    this->needsRedraw = true;
@@ -208,34 +147,39 @@ Object* Panel_remove(Panel* this, int i) {
 
    this->needsRedraw = true;
    Object* removed = Vector_remove(this->items, i);
-   if (this->selected > 0 && this->selected >= Vector_size(this->items))
+   if (this->selected > 0 && this->selected >= Vector_size(this->items)) {
       this->selected--;
+   }
+
    return removed;
 }
 
 Object* Panel_getSelected(Panel* this) {
    assert (this != NULL);
-   if (Vector_size(this->items) > 0)
+   if (Vector_size(this->items) > 0) {
       return Vector_get(this->items, this->selected);
-   else
+   } else {
       return NULL;
    }
+}
 
 void Panel_moveSelectedUp(Panel* this) {
    assert (this != NULL);
 
    Vector_moveUp(this->items, this->selected);
-   if (this->selected > 0)
+   if (this->selected > 0) {
       this->selected--;
    }
+}
 
 void Panel_moveSelectedDown(Panel* this) {
    assert (this != NULL);
 
    Vector_moveDown(this->items, this->selected);
-   if (this->selected + 1 < Vector_size(this->items))
+   if (this->selected + 1 < Vector_size(this->items)) {
       this->selected++;
    }
+}
 
 int Panel_getSelectedIndex(Panel* this) {
    assert (this != NULL);
@@ -256,15 +200,24 @@ void Panel_setSelected(Panel* this, int selected) {
    if (selected >= size) {
       selected = size - 1;
    }
-   if (selected < 0)
+   if (selected < 0) {
       selected = 0;
+   }
    this->selected = selected;
    if (Panel_eventHandlerFn(this)) {
       Panel_eventHandler(this, EVENT_SET_SELECTED);
    }
 }
 
-void Panel_draw(Panel* this, bool focus) {
+void Panel_splice(Panel* this, Vector* from) {
+   assert (this != NULL);
+   assert (from != NULL);
+
+   Vector_splice(this->items, from);
+   this->needsRedraw = true;
+}
+
+void Panel_draw(Panel* this, bool focus, bool highlightSelected) {
    assert (this != NULL);
 
    int size = Vector_size(this->items);
@@ -282,7 +235,7 @@ void Panel_draw(Panel* this, bool focus) {
       mvhline(y, x, ' ', this->w);
       if (scrollH < headerLen) {
          RichString_printoffnVal(this->header, y, x, scrollH,
-            MIN(headerLen - scrollH, this->w));
+            MINIMUM(headerLen - scrollH, this->w));
       }
       attrset(CRT_colors[RESET_COLOR]);
       y++;
@@ -293,7 +246,7 @@ void Panel_draw(Panel* this, bool focus) {
       this->scrollV = 0;
       this->needsRedraw = true;
    } else if (this->scrollV >= size) {
-      this->scrollV = MAX(size - 1, 0);
+      this->scrollV = MAXIMUM(size - 1, 0);
       this->needsRedraw = true;
    }
    // ensure selection is on screen
@@ -306,7 +259,7 @@ void Panel_draw(Panel* this, bool focus) {
    }
 
    int first = this->scrollV;
-   int upTo = MIN(first + h, size);
+   int upTo = MINIMUM(first + h, size);
 
    int selectionColor = focus
                       ? this->selectionColor
@@ -316,21 +269,22 @@ void Panel_draw(Panel* this, bool focus) {
       int line = 0;
       for (int i = first; line < h && i < upTo; i++) {
          Object* itemObj = Vector_get(this->items, i);
-         assert(itemObj); if(!itemObj) continue;
          RichString_begin(item);
          Object_display(itemObj, &item);
          int itemLen = RichString_sizeVal(item);
-         int amt = MIN(itemLen - scrollH, this->w);
-         bool selected = (i == this->selected);
-         if (selected) {
-            attrset(selectionColor);
-            RichString_setAttr(&item, selectionColor);
+         int amt = MINIMUM(itemLen - scrollH, this->w);
+         if (highlightSelected && i == this->selected) {
+            item.highlightAttr = selectionColor;
+         }
+         if (item.highlightAttr) {
+            attrset(item.highlightAttr);
+            RichString_setAttr(&item, item.highlightAttr);
             this->selectedLen = itemLen;
          }
          mvhline(y + line, x, ' ', this->w);
          if (amt > 0)
             RichString_printoffnVal(item, y + line, x, scrollH, amt);
-         if (selected)
+         if (item.highlightAttr)
             attrset(CRT_colors[RESET_COLOR]);
          RichString_end(item);
          line++;
@@ -343,7 +297,6 @@ void Panel_draw(Panel* this, bool focus) {
 
    } else {
       Object* oldObj = Vector_get(this->items, this->oldSelected);
-      assert(oldObj);
       RichString_begin(old);
       Object_display(oldObj, &old);
       int oldLen = RichString_sizeVal(old);
@@ -355,13 +308,13 @@ void Panel_draw(Panel* this, bool focus) {
       mvhline(y + this->oldSelected - first, x + 0, ' ', this->w);
       if (scrollH < oldLen)
          RichString_printoffnVal(old, y + this->oldSelected - first, x,
-            scrollH, MIN(oldLen - scrollH, this->w));
+            scrollH, MINIMUM(oldLen - scrollH, this->w));
       attrset(selectionColor);
       mvhline(y + this->selected - first, x + 0, ' ', this->w);
       RichString_setAttr(&new, selectionColor);
       if (scrollH < newLen)
          RichString_printoffnVal(new, y + this->selected - first, x,
-            scrollH, MIN(newLen - scrollH, this->w));
+            scrollH, MINIMUM(newLen - scrollH, this->w));
       attrset(CRT_colors[RESET_COLOR]);
       RichString_end(new);
       RichString_end(old);
@@ -374,68 +327,73 @@ bool Panel_onKey(Panel* this, int key) {
    assert (this != NULL);
 
    int size = Vector_size(this->items);
+
+   #define CLAMP_INDEX(var, delta, min, max) \
+      CLAMP((var) + (delta), (min), MAXIMUM(0, (max)))
+
    switch (key) {
    case KEY_DOWN:
    case KEY_CTRL('N'):
-      this->selected++;
-      break;
-   case KEY_UP:
-   case KEY_CTRL('P'):
-      this->selected--;
-      break;
    #ifdef KEY_C_DOWN
    case KEY_C_DOWN:
+   #endif
       this->selected++;
       break;
-   #endif
+
+   case KEY_UP:
+   case KEY_CTRL('P'):
    #ifdef KEY_C_UP
    case KEY_C_UP:
+   #endif
       this->selected--;
       break;
-   #endif
+
    case KEY_LEFT:
    case KEY_CTRL('B'):
       if (this->scrollH > 0) {
-         this->scrollH -= MAX(CRT_scrollHAmount, 0);
+         this->scrollH -= MAXIMUM(CRT_scrollHAmount, 0);
          this->needsRedraw = true;
       }
       break;
+
    case KEY_RIGHT:
    case KEY_CTRL('F'):
       this->scrollH += CRT_scrollHAmount;
       this->needsRedraw = true;
       break;
+
    case KEY_PPAGE:
       this->selected -= (this->h - 1);
-      this->scrollV -= (this->h - 1);
+      this->scrollV = CLAMP_INDEX(this->scrollV, -(this->h - 1), 0, size - this->h);
       this->needsRedraw = true;
       break;
+
    case KEY_NPAGE:
       this->selected += (this->h - 1);
-      this->scrollV = MIN(MAX(0, Vector_size(this->items) - this->h), this->selected - this->h);
+      this->scrollV = CLAMP_INDEX(this->scrollV, +(this->h - 1), 0, size - this->h);
       this->needsRedraw = true;
       break;
+
    case KEY_WHEELUP:
       this->selected -= CRT_scrollWheelVAmount;
-      this->scrollV -= CRT_scrollWheelVAmount;
+      this->scrollV = CLAMP_INDEX(this->scrollV, -CRT_scrollWheelVAmount, 0, size - this->h);
       this->needsRedraw = true;
       break;
+
    case KEY_WHEELDOWN:
-   {
       this->selected += CRT_scrollWheelVAmount;
-      this->scrollV += CRT_scrollWheelVAmount;
-      if (this->scrollV > Vector_size(this->items) - this->h) {
-         this->scrollV = Vector_size(this->items) - this->h;
-      }
+      this->scrollV = CLAMP_INDEX(this->scrollV, +CRT_scrollWheelVAmount, 0, size - this->h);
       this->needsRedraw = true;
       break;
-   }
+
    case KEY_HOME:
       this->selected = 0;
       break;
+
    case KEY_END:
       this->selected = size - 1;
       break;
+
    case KEY_CTRL('A'):
    case '^':
       this->scrollH = 0;
@@ -443,13 +401,15 @@ bool Panel_onKey(Panel* this, int key) {
       break;
    case KEY_CTRL('E'):
    case '$':
-      this->scrollH = MAX(this->selectedLen - this->w, 0);
+      this->scrollH = MAXIMUM(this->selectedLen - this->w, 0);
       this->needsRedraw = true;
       break;
    default:
       return false;
    }
 
+   #undef CLAMP_INDEX
+
    // ensure selection within bounds
    if (this->selected < 0 || size == 0) {
       this->selected = 0;
@@ -458,43 +418,60 @@ bool Panel_onKey(Panel* this, int key) {
       this->selected = size - 1;
       this->needsRedraw = true;
    }
+
    return true;
 }
 
 
 HandlerResult Panel_selectByTyping(Panel* this, int ch) {
    int size = Panel_size(this);
+
    if (!this->eventHandlerState)
       this->eventHandlerState = xCalloc(100, sizeof(char));
    char* buffer = this->eventHandlerState;
 
-   if (ch < 255 && isalnum(ch)) {
+   if (0 < ch && ch < 255 && isgraph((unsigned char)ch)) {
       int len = strlen(buffer);
+      if (!len) {
+         if ('/' == ch) {
+            ch = '\001';
+         } else if ('q' == ch) {
+            return BREAK_LOOP;
+         }
+      } else if (1 == len && '\001' == buffer[0]) {
+         len--;
+      }
+
       if (len < 99) {
          buffer[len] = ch;
          buffer[len+1] = '\0';
       }
+
       for (int try = 0; try < 2; try++) {
          len = strlen(buffer);
          for (int i = 0; i < size; i++) {
-            char* cur = ((ListItem*) Panel_get(this, i))->value;
+            const char* cur = ((ListItem*) Panel_get(this, i))->value;
             while (*cur == ' ') cur++;
             if (strncasecmp(cur, buffer, len) == 0) {
                Panel_setSelected(this, i);
                return HANDLED;
             }
          }
+
          // if current word did not match,
          // retry considering the character the start of a new word.
          buffer[0] = ch;
          buffer[1] = '\0';
       }
+
       return HANDLED;
    } else if (ch != ERR) {
       buffer[0] = '\0';
    }
+
    if (ch == 13) {
       return BREAK_LOOP;
    }
+
    return IGNORED;
 }

Panel.h

@@ -1,20 +1,21 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Panel
 #define HEADER_Panel
 /*
 htop - Panel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-//#link curses
+#include <stdbool.h>
 
-#include "Object.h"
-#include "Vector.h"
 #include "FunctionBar.h"
+#include "Object.h"
+#include "RichString.h"
+#include "Vector.h"
 
+
+struct Panel_;
 typedef struct Panel_ Panel;
 
 typedef enum HandlerResult_ {
@@ -26,11 +27,11 @@ typedef enum HandlerResult_ {
    SYNTH_KEY   = 0x20,
 } HandlerResult;
 
-#define EVENT_SET_SELECTED -1
+#define EVENT_SET_SELECTED (-1)
 
-#define EVENT_HEADER_CLICK(x_) (-10000 + x_)
-#define EVENT_IS_HEADER_CLICK(ev_) (ev_ >= -10000 && ev_ <= -9000)
-#define EVENT_HEADER_CLICK_GET_X(ev_) (ev_ + 10000)
+#define EVENT_HEADER_CLICK(x_) (-10000 + (x_))
+#define EVENT_IS_HEADER_CLICK(ev_) ((ev_) >= -10000 && (ev_) <= -9000)
+#define EVENT_HEADER_CLICK_GET_X(ev_) ((ev_) + 10000)
 
 typedef HandlerResult(*Panel_EventHandler)(Panel*, int);
 
@@ -39,14 +40,13 @@ typedef struct PanelClass_ {
    const Panel_EventHandler eventHandler;
 } PanelClass;
 
-#define As_Panel(this_)                ((PanelClass*)((this_)->super.klass))
+#define As_Panel(this_)                ((const PanelClass*)((this_)->super.klass))
 #define Panel_eventHandlerFn(this_)    As_Panel(this_)->eventHandler
 #define Panel_eventHandler(this_, ev_) As_Panel(this_)->eventHandler((Panel*)(this_), ev_)
 
 struct Panel_ {
    Object super;
    int x, y, w, h;
-   WINDOW* window;
    Vector* items;
    int selected;
    int oldSelected;
@@ -63,23 +63,15 @@ struct Panel_ {
 
 #define Panel_setDefaultBar(this_) do { (this_)->currentBar = (this_)->defaultBar; } while (0)
 
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-#ifndef MAX
-#define MAX(a,b) ((a)>(b)?(a):(b))
-#endif
-
 #define KEY_CTRL(l) ((l)-'A'+1)
 
-extern PanelClass Panel_class;
+extern const PanelClass Panel_class;
 
-Panel* Panel_new(int x, int y, int w, int h, bool owner, ObjectClass* type, FunctionBar* fuBar);
+Panel* Panel_new(int x, int y, int w, int h, bool owner, const ObjectClass* type, FunctionBar* fuBar);
 
 void Panel_delete(Object* cast);
 
-void Panel_init(Panel* this, int x, int y, int w, int h, ObjectClass* type, bool owner, FunctionBar* fuBar);
+void Panel_init(Panel* this, int x, int y, int w, int h, const ObjectClass* type, bool owner, FunctionBar* fuBar);
 
 void Panel_done(Panel* this);
 
@@ -87,7 +79,7 @@ void Panel_setSelectionColor(Panel* this, int color);
 
 RichString* Panel_getHeader(Panel* this);
 
-extern void Panel_setHeader(Panel* this, const char* header);
+void Panel_setHeader(Panel* this, const char* header);
 
 void Panel_move(Panel* this, int x, int y);
 
@@ -117,7 +109,9 @@ int Panel_size(Panel* this);
 
 void Panel_setSelected(Panel* this, int selected);
 
-void Panel_draw(Panel* this, bool focus);
+void Panel_draw(Panel* this, bool focus, bool highlightSelected);
+
+void Panel_splice(Panel* this, Vector* from);
 
 bool Panel_onKey(Panel* this, int key);
 

Process.c

@@ -1,187 +1,42 @@
 /*
 htop - Process.c
 (C) 2004-2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "Process.h"
-#include "Settings.h"
+
+#include <assert.h>
+#include <limits.h>
+#include <math.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/resource.h>
 
 #include "CRT.h"
-#include "StringUtils.h"
-#include "RichString.h"
+#include "Macros.h"
 #include "Platform.h"
+#include "ProcessList.h"
+#include "RichString.h"
+#include "Settings.h"
+#include "XUtils.h"
 
-#include <stdio.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <string.h>
-#include <stdbool.h>
-#include <pwd.h>
-#include <time.h>
-#include <assert.h>
-#include <math.h>
-
-#ifdef __ANDROID__
-#define SYS_ioprio_get __NR_ioprio_get
-#define SYS_ioprio_set __NR_ioprio_set
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
 #endif
 
-// On Linux, this works only with glibc 2.1+. On earlier versions
-// the behavior is similar to have a hardcoded page size.
-#ifndef PAGE_SIZE
-#define PAGE_SIZE ( sysconf(_SC_PAGESIZE) )
-#endif
-#define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K )
 
-/*{
-#include "Object.h"
-
-#include <sys/types.h>
-
-#define PROCESS_FLAG_IO 0x0001
-
-typedef enum ProcessFields {
-   NULL_PROCESSFIELD = 0,
-   PID = 1,
-   COMM = 2,
-   STATE = 3,
-   PPID = 4,
-   PGRP = 5,
-   SESSION = 6,
-   TTY_NR = 7,
-   TPGID = 8,
-   MINFLT = 10,
-   MAJFLT = 12,
-   PRIORITY = 18,
-   NICE = 19,
-   STARTTIME = 21,
-   PROCESSOR = 38,
-   M_SIZE = 39,
-   M_RESIDENT = 40,
-   ST_UID = 46,
-   PERCENT_CPU = 47,
-   PERCENT_MEM = 48,
-   USER = 49,
-   TIME = 50,
-   NLWP = 51,
-   TGID = 52,
-} ProcessField;
-
-typedef struct ProcessPidColumn_ {
-   int id;
-   char* label;
-} ProcessPidColumn;
-
-typedef struct Process_ {
-   Object super;
-
-   struct Settings_* settings;
-
-   unsigned long long int time;
-   pid_t pid;
-   pid_t ppid;
-   pid_t tgid;
-   char* comm;
-   int commLen;
-   int indent;
-
-   int basenameOffset;
-   bool updated;
-
-   char state;
-   bool tag;
-   bool showChildren;
-   bool show;
-   unsigned int pgrp;
-   unsigned int session;
-   unsigned int tty_nr;
-   int tpgid;
-   uid_t st_uid;
-   unsigned long int flags;
-   int processor;
-
-   float percent_cpu;
-   float percent_mem;
-   char* user;
-
-   long int priority;
-   long int nice;
-   long int nlwp;
-   char starttime_show[8];
-   time_t starttime_ctime;
-
-   long m_size;
-   long m_resident;
-
-   int exit_signal;
-
-   unsigned long int minflt;
-   unsigned long int majflt;
-   #ifdef DEBUG
-   long int itrealvalue;
-   unsigned long int vsize;
-   long int rss;
-   unsigned long int rlim;
-   unsigned long int startcode;
-   unsigned long int endcode;
-   unsigned long int startstack;
-   unsigned long int kstkesp;
-   unsigned long int kstkeip;
-   unsigned long int signal;
-   unsigned long int blocked;
-   unsigned long int sigignore;
-   unsigned long int sigcatch;
-   unsigned long int wchan;
-   unsigned long int nswap;
-   unsigned long int cnswap;
-   #endif
-
-} Process;
-
-typedef struct ProcessFieldData_ {
-   const char* name;
-   const char* title;
-   const char* description;
-   int flags;
-} ProcessFieldData;
-
-// Implemented in platform-specific code:
-void Process_writeField(Process* this, RichString* str, ProcessField field);
-long Process_compare(const void* v1, const void* v2);
-void Process_delete(Object* cast);
-bool Process_isThread(Process* this);
-extern ProcessFieldData Process_fields[];
-extern ProcessPidColumn Process_pidColumns[];
-extern char Process_pidFormat[20];
-
-typedef Process*(*Process_New)(struct Settings_*);
-typedef void (*Process_WriteField)(Process*, RichString*, ProcessField);
-
-typedef struct ProcessClass_ {
-   const ObjectClass super;
-   const Process_WriteField writeField;
-} ProcessClass;
-
-#define As_Process(this_)              ((ProcessClass*)((this_)->super.klass))
-
-}*/
-
-static int Process_getuid = -1;
-
-#define ONE_K 1024L
-#define ONE_M (ONE_K * ONE_K)
-#define ONE_G (ONE_M * ONE_K)
-
-#define ONE_DECIMAL_K 1000L
-#define ONE_DECIMAL_M (ONE_DECIMAL_K * ONE_DECIMAL_K)
-#define ONE_DECIMAL_G (ONE_DECIMAL_M * ONE_DECIMAL_K)
+static uid_t Process_getuid = (uid_t)-1;
 
 char Process_pidFormat[20] = "%7d ";
 
@@ -189,85 +44,117 @@ static char Process_titleBuffer[20][20];
 
 void Process_setupColumnWidths() {
    int maxPid = Platform_getMaxPid();
-   if (maxPid == -1) return;
+   if (maxPid == -1)
+      return;
+
    int digits = ceil(log10(maxPid));
    assert(digits < 20);
    for (int i = 0; Process_pidColumns[i].label; i++) {
       assert(i < 20);
-      snprintf(Process_titleBuffer[i], 20, "%*s ", digits, Process_pidColumns[i].label);
+      xSnprintf(Process_titleBuffer[i], 20, "%*s ", digits, Process_pidColumns[i].label);
       Process_fields[Process_pidColumns[i].id].title = Process_titleBuffer[i];
    }
-   sprintf(Process_pidFormat, "%%%dd ", digits);
+   xSnprintf(Process_pidFormat, sizeof(Process_pidFormat), "%%%dd ", digits);
 }
 
-void Process_humanNumber(RichString* str, unsigned long number, bool coloring) {
-   char buffer[11];
+void Process_humanNumber(RichString* str, unsigned long long number, bool coloring) {
+   char buffer[10];
    int len;
 
    int largeNumberColor = CRT_colors[LARGE_NUMBER];
    int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
+   int processGigabytesColor = CRT_colors[PROCESS_GIGABYTES];
    int processColor = CRT_colors[PROCESS];
    if (!coloring) {
       largeNumberColor = CRT_colors[PROCESS];
       processMegabytesColor = CRT_colors[PROCESS];
+      processGigabytesColor = CRT_colors[PROCESS];
    }
 
-   if(number >= (10 * ONE_DECIMAL_M)) {
-      #ifdef __LP64__
-      if(number >= (100 * ONE_DECIMAL_G)) {
-         len = snprintf(buffer, 10, "%4ldT ", number / ONE_G);
-         RichString_appendn(str, largeNumberColor, buffer, len);
-         return;
-      } else if (number >= (1000 * ONE_DECIMAL_M)) {
-         len = snprintf(buffer, 10, "%4.1lfT ", (double)number / ONE_G);
-         RichString_appendn(str, largeNumberColor, buffer, len);
-         return;
-      }
-      #endif
-      if(number >= (100 * ONE_DECIMAL_M)) {
-         len = snprintf(buffer, 10, "%4ldG ", number / ONE_M);
-         RichString_appendn(str, largeNumberColor, buffer, len);
-         return;
-      }
-      len = snprintf(buffer, 10, "%4.1lfG ", (double)number / ONE_M);
-      RichString_appendn(str, largeNumberColor, buffer, len);
-      return;
-   } else if (number >= 100000) {
-      len = snprintf(buffer, 10, "%4ldM ", number / ONE_K);
-      RichString_appendn(str, processMegabytesColor, buffer, len);
-      return;
-   } else if (number >= 1000) {
-      len = snprintf(buffer, 10, "%2ld", number/1000);
+   if (number < 1000) {
+      //Plain number, no markings
+      len = xSnprintf(buffer, sizeof(buffer), "%5llu ", number);
+      RichString_appendn(str, processColor, buffer, len);
+   } else if (number < 100000) {
+      //2 digit MB, 3 digit KB
+      len = xSnprintf(buffer, sizeof(buffer), "%2llu", number/1000);
       RichString_appendn(str, processMegabytesColor, buffer, len);
       number %= 1000;
-      len = snprintf(buffer, 10, "%03lu ", number);
+      len = xSnprintf(buffer, sizeof(buffer), "%03llu ", number);
       RichString_appendn(str, processColor, buffer, len);
-      return;
+   } else if (number < 1000 * ONE_K) {
+      //3 digit MB
+      number /= ONE_K;
+      len = xSnprintf(buffer, sizeof(buffer), "%4lluM ", number);
+      RichString_appendn(str, processMegabytesColor, buffer, len);
+   } else if (number < 10000 * ONE_K) {
+      //1 digit GB, 3 digit MB
+      number /= ONE_K;
+      len = xSnprintf(buffer, sizeof(buffer), "%1llu", number/1000);
+      RichString_appendn(str, processGigabytesColor, buffer, len);
+      number %= 1000;
+      len = xSnprintf(buffer, sizeof(buffer), "%03lluM ", number);
+      RichString_appendn(str, processMegabytesColor, buffer, len);
+   } else if (number < 100000 * ONE_K) {
+      //2 digit GB, 1 digit MB
+      number /= 100 * ONE_K;
+      len = xSnprintf(buffer, sizeof(buffer), "%2llu", number/10);
+      RichString_appendn(str, processGigabytesColor, buffer, len);
+      number %= 10;
+      len = xSnprintf(buffer, sizeof(buffer), ".%1llu", number);
+      RichString_appendn(str, processMegabytesColor, buffer, len);
+      RichString_append(str, processGigabytesColor, "G ");
+   } else if (number < 1000 * ONE_M) {
+      //3 digit GB
+      number /= ONE_M;
+      len = xSnprintf(buffer, sizeof(buffer), "%4lluG ", number);
+      RichString_appendn(str, processGigabytesColor, buffer, len);
+   } else if (number < 10000ULL * ONE_M) {
+      //1 digit TB, 3 digit GB
+      number /= ONE_M;
+      len = xSnprintf(buffer, sizeof(buffer), "%1llu", number/1000);
+      RichString_appendn(str, largeNumberColor, buffer, len);
+      number %= 1000;
+      len = xSnprintf(buffer, sizeof(buffer), "%03lluG ", number);
+      RichString_appendn(str, processGigabytesColor, buffer, len);
+   } else {
+      //2 digit TB and above
+      len = xSnprintf(buffer, sizeof(buffer), "%4.1lfT ", (double)number/ONE_G);
+      RichString_appendn(str, largeNumberColor, buffer, len);
    }
-   len = snprintf(buffer, 10, "%5lu ", number);
-   RichString_appendn(str, processColor, buffer, len);
 }
 
 void Process_colorNumber(RichString* str, unsigned long long number, bool coloring) {
-   char buffer[14];
+   char buffer[13];
 
    int largeNumberColor = CRT_colors[LARGE_NUMBER];
    int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
    int processColor = CRT_colors[PROCESS];
    int processShadowColor = CRT_colors[PROCESS_SHADOW];
+
    if (!coloring) {
       largeNumberColor = CRT_colors[PROCESS];
       processMegabytesColor = CRT_colors[PROCESS];
       processShadowColor = CRT_colors[PROCESS];
    }
 
-   if (number > 10000000000) {
-      snprintf(buffer, 13, "%11lld ", number / 1000);
+   if (number == ULLONG_MAX) {
+      int len = xSnprintf(buffer, sizeof(buffer), "        N/A ");
+      RichString_appendn(str, CRT_colors[PROCESS_SHADOW], buffer, len);
+   } else if (number >= 100000LL * ONE_DECIMAL_T) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_G);
+      RichString_appendn(str, largeNumberColor, buffer, 12);
+   } else if (number >= 100LL * ONE_DECIMAL_T) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_M);
+      RichString_appendn(str, largeNumberColor, buffer, 8);
+      RichString_appendn(str, processMegabytesColor, buffer+8, 4);
+   } else if (number >= 10LL * ONE_DECIMAL_G) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_K);
       RichString_appendn(str, largeNumberColor, buffer, 5);
       RichString_appendn(str, processMegabytesColor, buffer+5, 3);
       RichString_appendn(str, processColor, buffer+8, 4);
    } else {
-      snprintf(buffer, 13, "%11llu ", number);
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number);
       RichString_appendn(str, largeNumberColor, buffer, 2);
       RichString_appendn(str, processMegabytesColor, buffer+2, 3);
       RichString_appendn(str, processColor, buffer+5, 3);
@@ -282,25 +169,31 @@ void Process_printTime(RichString* str, unsigned long long totalHundredths) {
    int minutes = (totalSeconds / 60) % 60;
    int seconds = totalSeconds % 60;
    int hundredths = totalHundredths - (totalSeconds * 100);
-   char buffer[11];
+   char buffer[10];
    if (hours >= 100) {
-      snprintf(buffer, 10, "%7lluh ", hours);
+      xSnprintf(buffer, sizeof(buffer), "%7lluh ", hours);
       RichString_append(str, CRT_colors[LARGE_NUMBER], buffer);
    } else {
       if (hours) {
-         snprintf(buffer, 10, "%2lluh", hours);
+         xSnprintf(buffer, sizeof(buffer), "%2lluh", hours);
          RichString_append(str, CRT_colors[LARGE_NUMBER], buffer);
-         snprintf(buffer, 10, "%02d:%02d ", minutes, seconds);
+         xSnprintf(buffer, sizeof(buffer), "%02d:%02d ", minutes, seconds);
       } else {
-         snprintf(buffer, 10, "%2d:%02d.%02d ", minutes, seconds, hundredths);
+         xSnprintf(buffer, sizeof(buffer), "%2d:%02d.%02d ", minutes, seconds, hundredths);
       }
       RichString_append(str, CRT_colors[DEFAULT_COLOR], buffer);
    }
 }
 
-static inline void Process_writeCommand(Process* this, int attr, int baseattr, RichString* str) {
+void Process_fillStarttimeBuffer(Process* this) {
+   struct tm date;
+   (void) localtime_r(&this->starttime_ctime, &date);
+   strftime(this->starttime_show, sizeof(this->starttime_show) - 1, (this->starttime_ctime > (time(NULL) - 86400)) ? "%R " : "%b%d ", &date);
+}
+
+static inline void Process_writeCommand(const Process* this, int attr, int baseattr, RichString* str) {
    int start = RichString_size(str), finish = 0;
-   char* comm = this->comm;
+   const char* comm = this->comm;
 
    if (this->settings->highlightBaseName || !this->settings->showProgramPath) {
       int i, basename = 0;
@@ -313,10 +206,11 @@ static inline void Process_writeCommand(Process* this, int attr, int baseattr, R
          }
       }
       if (!finish) {
-         if (this->settings->showProgramPath)
+         if (this->settings->showProgramPath) {
             start += basename;
-         else
+         } else {
             comm += basename;
+         }
          finish = this->basenameOffset - basename;
       }
       finish += start - 1;
@@ -324,37 +218,43 @@ static inline void Process_writeCommand(Process* this, int attr, int baseattr, R
 
    RichString_append(str, attr, comm);
 
-   if (this->settings->highlightBaseName)
+   if (this->settings->highlightBaseName) {
       RichString_setAttrn(str, baseattr, start, finish);
    }
+}
 
 void Process_outputRate(RichString* str, char* buffer, int n, double rate, int coloring) {
    int largeNumberColor = CRT_colors[LARGE_NUMBER];
    int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
    int processColor = CRT_colors[PROCESS];
+
    if (!coloring) {
       largeNumberColor = CRT_colors[PROCESS];
       processMegabytesColor = CRT_colors[PROCESS];
    }
-   if (rate == -1) {
-      int len = snprintf(buffer, n, "    no perm ");
+
+   if (isnan(rate)) {
+      int len = xSnprintf(buffer, n, "        N/A ");
       RichString_appendn(str, CRT_colors[PROCESS_SHADOW], buffer, len);
    } else if (rate < ONE_K) {
       int len = snprintf(buffer, n, "%7.2f B/s ", rate);
       RichString_appendn(str, processColor, buffer, len);
-   } else if (rate < ONE_K * ONE_K) {
+   } else if (rate < ONE_M) {
       int len = snprintf(buffer, n, "%7.2f K/s ", rate / ONE_K);
       RichString_appendn(str, processColor, buffer, len);
-   } else if (rate < ONE_K * ONE_K * ONE_K) {
-      int len = snprintf(buffer, n, "%7.2f M/s ", rate / ONE_K / ONE_K);
+   } else if (rate < ONE_G) {
+      int len = snprintf(buffer, n, "%7.2f M/s ", rate / ONE_M);
       RichString_appendn(str, processMegabytesColor, buffer, len);
+   } else if (rate < ONE_T) {
+      int len = snprintf(buffer, n, "%7.2f G/s ", rate / ONE_G);
+      RichString_appendn(str, largeNumberColor, buffer, len);
    } else {
-      int len = snprintf(buffer, n, "%7.2f G/s ", rate / ONE_K / ONE_K / ONE_K);
+      int len = snprintf(buffer, n, "%7.2f T/s ", rate / ONE_T);
       RichString_appendn(str, largeNumberColor, buffer, len);
    }
 }
 
-void Process_writeField(Process* this, RichString* str, ProcessField field) {
+void Process_writeField(const Process* this, RichString* str, ProcessField field) {
    char buffer[256]; buffer[255] = '\0';
    int attr = CRT_colors[DEFAULT_COLOR];
    int baseattr = CRT_colors[PROCESS_BASENAME];
@@ -362,21 +262,26 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
    bool coloring = this->settings->highlightMegabytes;
 
    switch (field) {
-   case PERCENT_CPU: {
-      if (this->percent_cpu > 999.9) {
-         snprintf(buffer, n, "%4d ", (unsigned int)this->percent_cpu); 
-      } else if (this->percent_cpu > 99.9) {
-         snprintf(buffer, n, "%3d. ", (unsigned int)this->percent_cpu); 
+   case PERCENT_CPU:
+   case PERCENT_NORM_CPU: {
+      float cpuPercentage = this->percent_cpu;
+      if (field == PERCENT_NORM_CPU) {
+         cpuPercentage /= this->processList->cpuCount;
+      }
+      if (cpuPercentage > 999.9) {
+         xSnprintf(buffer, n, "%4u ", (unsigned int)cpuPercentage);
+      } else if (cpuPercentage > 99.9) {
+         xSnprintf(buffer, n, "%3u. ", (unsigned int)cpuPercentage);
       } else {
-         snprintf(buffer, n, "%4.1f ", this->percent_cpu);
+         xSnprintf(buffer, n, "%4.1f ", cpuPercentage);
       }
       break;
    }
    case PERCENT_MEM: {
       if (this->percent_mem > 99.9) {
-         snprintf(buffer, n, "100. "); 
+         xSnprintf(buffer, n, "100. ");
       } else {
-         snprintf(buffer, n, "%4.1f ", this->percent_mem);
+         xSnprintf(buffer, n, "%4.1f ", this->percent_mem);
       }
       break;
    }
@@ -394,20 +299,29 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
          bool lastItem = (this->indent < 0);
          int indent = (this->indent < 0 ? -this->indent : this->indent);
 
-         for (int i = 0; i < 32; i++)
-            if (indent & (1U << i))
+         for (int i = 0; i < 32; i++) {
+            if (indent & (1U << i)) {
                maxIndent = i+1;
+            }
+         }
+
          for (int i = 0; i < maxIndent - 1; i++) {
-            int written;
-            if (indent & (1 << i))
-               written = snprintf(buf, n, "%s  ", CRT_treeStr[TREE_STR_VERT]);
-            else
-               written = snprintf(buf, n, "   ");
+            int written, ret;
+            if (indent & (1 << i)) {
+               ret = snprintf(buf, n, "%s  ", CRT_treeStr[TREE_STR_VERT]);
+            } else {
+               ret = snprintf(buf, n, "   ");
+            }
+            if (ret < 0 || ret >= n) {
+               written = n;
+            } else {
+               written = ret;
+            }
             buf += written;
             n -= written;
          }
          const char* draw = CRT_treeStr[lastItem ? (this->settings->direction == 1 ? TREE_STR_BEND : TREE_STR_TEND) : TREE_STR_RTEE];
-         snprintf(buf, n, "%s%s ", draw, this->showChildren ? CRT_treeStr[TREE_STR_SHUT] : CRT_treeStr[TREE_STR_OPEN] );
+         xSnprintf(buf, n, "%s%s ", draw, this->showChildren ? CRT_treeStr[TREE_STR_SHUT] : CRT_treeStr[TREE_STR_OPEN] );
          RichString_append(str, CRT_colors[PROCESS_TREE], buffer);
          Process_writeCommand(this, attr, baseattr, str);
          return;
@@ -415,31 +329,31 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
    }
    case MAJFLT: Process_colorNumber(str, this->majflt, coloring); return;
    case MINFLT: Process_colorNumber(str, this->minflt, coloring); return;
-   case M_RESIDENT: Process_humanNumber(str, this->m_resident * PAGE_SIZE_KB, coloring); return;
-   case M_SIZE: Process_humanNumber(str, this->m_size * PAGE_SIZE_KB, coloring); return;
+   case M_RESIDENT: Process_humanNumber(str, this->m_resident * CRT_pageSizeKB, coloring); return;
+   case M_VIRT: Process_humanNumber(str, this->m_virt * CRT_pageSizeKB, coloring); return;
    case NICE: {
-      snprintf(buffer, n, "%3ld ", this->nice);
+      xSnprintf(buffer, n, "%3ld ", this->nice);
       attr = this->nice < 0 ? CRT_colors[PROCESS_HIGH_PRIORITY]
            : this->nice > 0 ? CRT_colors[PROCESS_LOW_PRIORITY]
            : attr;
       break;
    }
-   case NLWP: snprintf(buffer, n, "%4ld ", this->nlwp); break;
-   case PGRP: snprintf(buffer, n, Process_pidFormat, this->pgrp); break;
-   case PID: snprintf(buffer, n, Process_pidFormat, this->pid); break;
-   case PPID: snprintf(buffer, n, Process_pidFormat, this->ppid); break;
+   case NLWP: xSnprintf(buffer, n, "%4ld ", this->nlwp); break;
+   case PGRP: xSnprintf(buffer, n, Process_pidFormat, this->pgrp); break;
+   case PID: xSnprintf(buffer, n, Process_pidFormat, this->pid); break;
+   case PPID: xSnprintf(buffer, n, Process_pidFormat, this->ppid); break;
    case PRIORITY: {
-      if(this->priority == -100)
-         snprintf(buffer, n, " RT ");
+      if(this->priority <= -100)
+         xSnprintf(buffer, n, " RT ");
       else
-         snprintf(buffer, n, "%3ld ", this->priority);
+         xSnprintf(buffer, n, "%3ld ", this->priority);
       break;
    }
-   case PROCESSOR: snprintf(buffer, n, "%3d ", Settings_cpuId(this->settings, this->processor)); break;
-   case SESSION: snprintf(buffer, n, Process_pidFormat, this->session); break;
-   case STARTTIME: snprintf(buffer, n, "%s", this->starttime_show); break;
+   case PROCESSOR: xSnprintf(buffer, n, "%3d ", Settings_cpuId(this->settings, this->processor)); break;
+   case SESSION: xSnprintf(buffer, n, Process_pidFormat, this->session); break;
+   case STARTTIME: xSnprintf(buffer, n, "%s", this->starttime_show); break;
    case STATE: {
-      snprintf(buffer, n, "%c ", this->state);
+      xSnprintf(buffer, n, "%c ", this->state);
       switch(this->state) {
           case 'R':
               attr = CRT_colors[PROCESS_R_STATE];
@@ -450,18 +364,18 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
       }
       break;
    }
-   case ST_UID: snprintf(buffer, n, "%4d ", this->st_uid); break;
+   case ST_UID: xSnprintf(buffer, n, "%5d ", this->st_uid); break;
    case TIME: Process_printTime(str, this->time); return;
-   case TGID: snprintf(buffer, n, Process_pidFormat, this->tgid); break;
-   case TPGID: snprintf(buffer, n, Process_pidFormat, this->tpgid); break;
-   case TTY_NR: snprintf(buffer, n, "%5u ", this->tty_nr); break;
+   case TGID: xSnprintf(buffer, n, Process_pidFormat, this->tgid); break;
+   case TPGID: xSnprintf(buffer, n, Process_pidFormat, this->tpgid); break;
+   case TTY_NR: xSnprintf(buffer, n, "%3u:%3u ", major(this->tty_nr), minor(this->tty_nr)); break;
    case USER: {
-      if (Process_getuid != (int) this->st_uid)
+      if (Process_getuid != this->st_uid)
          attr = CRT_colors[PROCESS_SHADOW];
       if (this->user) {
-         snprintf(buffer, n, "%-9s ", this->user);
+         xSnprintf(buffer, n, "%-9s ", this->user);
       } else {
-         snprintf(buffer, n, "%-9d ", this->st_uid);
+         xSnprintf(buffer, n, "%-9d ", this->st_uid);
       }
       if (buffer[9] != '\0') {
          buffer[9] = ' ';
@@ -470,21 +384,34 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
       break;
    }
    default:
-      snprintf(buffer, n, "- ");
+      xSnprintf(buffer, n, "- ");
    }
    RichString_append(str, attr, buffer);
 }
 
-void Process_display(Object* cast, RichString* out) {
-   Process* this = (Process*) cast;
-   ProcessField* fields = this->settings->fields;
+void Process_display(const Object* cast, RichString* out) {
+   const Process* this = (const Process*) cast;
+   const ProcessField* fields = this->settings->fields;
    RichString_prune(out);
    for (int i = 0; fields[i]; i++)
       As_Process(this)->writeField(this, out, fields[i]);
-   if (this->settings->shadowOtherUsers && (int)this->st_uid != Process_getuid)
+
+   if (this->settings->shadowOtherUsers && this->st_uid != Process_getuid) {
       RichString_setAttr(out, CRT_colors[PROCESS_SHADOW]);
-   if (this->tag == true)
+   }
+
+   if (this->tag == true) {
       RichString_setAttr(out, CRT_colors[PROCESS_TAG]);
+   }
+
+   if (this->settings->highlightChanges) {
+      if (Process_isTomb(this)) {
+         out->highlightAttr = CRT_colors[PROCESS_TOMB];
+      } else if (Process_isNew(this)) {
+         out->highlightAttr = CRT_colors[PROCESS_NEW];
+      }
+   }
+
    assert(out->chlen > 0);
 }
 
@@ -493,7 +420,11 @@ void Process_done(Process* this) {
    free(this->comm);
 }
 
-ProcessClass Process_class = {
+static const char* Process_getCommandStr(const Process* p) {
+   return p->comm ? p->comm : "";
+}
+
+const ProcessClass Process_class = {
    .super = {
       .extends = Class(Object),
       .display = Process_display,
@@ -501,113 +432,129 @@ ProcessClass Process_class = {
       .compare = Process_compare
    },
    .writeField = Process_writeField,
+   .getCommandStr = Process_getCommandStr,
 };
 
-void Process_init(Process* this, struct Settings_* settings) {
+void Process_init(Process* this, const struct Settings_* settings) {
    this->settings = settings;
    this->tag = false;
    this->showChildren = true;
    this->show = true;
    this->updated = false;
    this->basenameOffset = -1;
-   if (Process_getuid == -1) Process_getuid = getuid();
+
+   if (Process_getuid == (uid_t)-1) {
+      Process_getuid = getuid();
+   }
 }
 
 void Process_toggleTag(Process* this) {
    this->tag = this->tag == true ? false : true;
 }
 
+bool Process_isNew(const Process* this) {
+   assert(this->processList);
+   if (this->processList->scanTs >= this->seenTs) {
+      return this->processList->scanTs - this->seenTs <= this->processList->settings->highlightDelaySecs;
+   }
+   return false;
+}
+
+bool Process_isTomb(const Process* this) {
+    return this->tombTs > 0;
+}
+
 bool Process_setPriority(Process* this, int priority) {
-   uid_t euid = geteuid();
-   (void) seteuid(getuid());
+   CRT_dropPrivileges();
    int old_prio = getpriority(PRIO_PROCESS, this->pid);
    int err = setpriority(PRIO_PROCESS, this->pid, priority);
-   (void) seteuid(euid);
+   CRT_restorePrivileges();
    if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
       this->nice = priority;
    }
    return (err == 0);
 }
 
-bool Process_changePriorityBy(Process* this, size_t delta) {
-   return Process_setPriority(this, this->nice + delta);
+bool Process_changePriorityBy(Process* this, Arg delta) {
+   return Process_setPriority(this, this->nice + delta.i);
 }
 
-void Process_sendSignal(Process* this, size_t sgn) {
-   uid_t euid = geteuid();
-   (void) seteuid(getuid());
-   kill(this->pid, (int) sgn);
-   (void) seteuid(euid);
+bool Process_sendSignal(Process* this, Arg sgn) {
+   CRT_dropPrivileges();
+   bool ok = (kill(this->pid, sgn.i) == 0);
+   CRT_restorePrivileges();
+   return ok;
 }
 
 long Process_pidCompare(const void* v1, const void* v2) {
-   Process* p1 = (Process*)v1;
-   Process* p2 = (Process*)v2;
+   const Process* p1 = (const Process*)v1;
+   const Process* p2 = (const Process*)v2;
    return (p1->pid - p2->pid);
 }
 
 long Process_compare(const void* v1, const void* v2) {
-   Process *p1, *p2;
-   Settings *settings = ((Process*)v1)->settings;
+   const Process *p1, *p2;
+   const Settings *settings = ((const Process*)v1)->settings;
+   int r;
+
    if (settings->direction == 1) {
-      p1 = (Process*)v1;
-      p2 = (Process*)v2;
+      p1 = (const Process*)v1;
+      p2 = (const Process*)v2;
    } else {
-      p2 = (Process*)v1;
-      p1 = (Process*)v2;
+      p2 = (const Process*)v1;
+      p1 = (const Process*)v2;
    }
+
    switch (settings->sortKey) {
    case PERCENT_CPU:
-      return (p2->percent_cpu > p1->percent_cpu ? 1 : -1);
+   case PERCENT_NORM_CPU:
+      return SPACESHIP_NUMBER(p2->percent_cpu, p1->percent_cpu);
    case PERCENT_MEM:
-      return (p2->m_resident - p1->m_resident);
+      return SPACESHIP_NUMBER(p2->m_resident, p1->m_resident);
    case COMM:
-      return strcmp(p1->comm, p2->comm);
+      return SPACESHIP_NULLSTR(Process_getCommand(p1), Process_getCommand(p2));
    case MAJFLT:
-      return (p2->majflt - p1->majflt);
+      return SPACESHIP_NUMBER(p2->majflt, p1->majflt);
    case MINFLT:
-      return (p2->minflt - p1->minflt);
+      return SPACESHIP_NUMBER(p2->minflt, p1->minflt);
    case M_RESIDENT:
-      return (p2->m_resident - p1->m_resident);
-   case M_SIZE:
-      return (p2->m_size - p1->m_size);
+      return SPACESHIP_NUMBER(p2->m_resident, p1->m_resident);
+   case M_VIRT:
+      return SPACESHIP_NUMBER(p2->m_virt, p1->m_virt);
    case NICE:
-      return (p1->nice - p2->nice);
+      return SPACESHIP_NUMBER(p1->nice, p2->nice);
    case NLWP:
-      return (p1->nlwp - p2->nlwp);
+      return SPACESHIP_NUMBER(p1->nlwp, p2->nlwp);
    case PGRP:
-      return (p1->pgrp - p2->pgrp);
+      return SPACESHIP_NUMBER(p1->pgrp, p2->pgrp);
    case PID:
-      return (p1->pid - p2->pid);
+      return SPACESHIP_NUMBER(p1->pid, p2->pid);
    case PPID:
-      return (p1->ppid - p2->ppid);
+      return SPACESHIP_NUMBER(p1->ppid, p2->ppid);
    case PRIORITY:
-      return (p1->priority - p2->priority);
+      return SPACESHIP_NUMBER(p1->priority, p2->priority);
    case PROCESSOR:
-      return (p1->processor - p2->processor);
+      return SPACESHIP_NUMBER(p1->processor, p2->processor);
    case SESSION:
-      return (p1->session - p2->session);
-   case STARTTIME: {
-      if (p1->starttime_ctime == p2->starttime_ctime)
-         return (p1->pid - p2->pid);
-      else
-         return (p1->starttime_ctime - p2->starttime_ctime);
-   }
+      return SPACESHIP_NUMBER(p1->session, p2->session);
+   case STARTTIME:
+      r = SPACESHIP_NUMBER(p1->starttime_ctime, p2->starttime_ctime);
+      return r != 0 ? r : SPACESHIP_NUMBER(p1->pid, p2->pid);
    case STATE:
-      return (p1->state - p2->state);
+      return SPACESHIP_NUMBER(Process_sortState(p1->state), Process_sortState(p2->state));
    case ST_UID:
-      return (p1->st_uid - p2->st_uid);
+      return SPACESHIP_NUMBER(p1->st_uid, p2->st_uid);
    case TIME:
-      return ((p2->time) - (p1->time));
+      return SPACESHIP_NUMBER(p2->time, p1->time);
    case TGID:
-      return (p1->tgid - p2->tgid);
+      return SPACESHIP_NUMBER(p1->tgid, p2->tgid);
    case TPGID:
-      return (p1->tpgid - p2->tpgid);
+      return SPACESHIP_NUMBER(p1->tpgid, p2->tpgid);
    case TTY_NR:
-      return (p1->tty_nr - p2->tty_nr);
+      return SPACESHIP_NUMBER(p1->tty_nr, p2->tty_nr);
    case USER:
-      return strcmp(p1->user ? p1->user : "", p2->user ? p2->user : "");
+      return SPACESHIP_NULLSTR(p1->user, p2->user);
    default:
-      return (p1->pid - p2->pid);
+      return SPACESHIP_NUMBER(p1->pid, p2->pid);
    }
 }

Process.h

@@ -1,31 +1,28 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Process
 #define HEADER_Process
 /*
 htop - Process.h
 (C) 2004-2015 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "Object.h"
+#include "RichString.h"
+
 #ifdef __ANDROID__
 #define SYS_ioprio_get __NR_ioprio_get
 #define SYS_ioprio_set __NR_ioprio_set
 #endif
 
-// On Linux, this works only with glibc 2.1+. On earlier versions
-// the behavior is similar to have a hardcoded page size.
-#ifndef PAGE_SIZE
-#define PAGE_SIZE ( sysconf(_SC_PAGESIZE) )
-#endif
-#define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K )
-
-#include "Object.h"
-
-#include <sys/types.h>
-
 #define PROCESS_FLAG_IO 0x0001
+#define DEFAULT_HIGHLIGHT_SECS 5
 
 typedef enum ProcessFields {
    NULL_PROCESSFIELD = 0,
@@ -43,7 +40,7 @@ typedef enum ProcessFields {
    NICE = 19,
    STARTTIME = 21,
    PROCESSOR = 38,
-   M_SIZE = 39,
+   M_VIRT = 39,
    M_RESIDENT = 40,
    ST_UID = 46,
    PERCENT_CPU = 47,
@@ -52,23 +49,27 @@ typedef enum ProcessFields {
    TIME = 50,
    NLWP = 51,
    TGID = 52,
+   PERCENT_NORM_CPU = 53,
 } ProcessField;
 
 typedef struct ProcessPidColumn_ {
    int id;
-   char* label;
+   const char* label;
 } ProcessPidColumn;
 
+struct Settings_;
+
 typedef struct Process_ {
    Object super;
 
-   struct Settings_* settings;
+   const struct ProcessList_* processList;
+   const struct Settings_* settings;
 
    unsigned long long int time;
    pid_t pid;
    pid_t ppid;
    pid_t tgid;
-   char* comm;
+   char* comm;  /* use Process_getCommand() for Command actually displayed */
    int commLen;
    int indent;
 
@@ -79,6 +80,7 @@ typedef struct Process_ {
    bool tag;
    bool showChildren;
    bool show;
+   bool wasShown;
    unsigned int pgrp;
    unsigned int session;
    unsigned int tty_nr;
@@ -89,7 +91,7 @@ typedef struct Process_ {
 
    float percent_cpu;
    float percent_mem;
-   char* user;
+   const char* user;
 
    long int priority;
    long int nice;
@@ -97,101 +99,106 @@ typedef struct Process_ {
    char starttime_show[8];
    time_t starttime_ctime;
 
-   long m_size;
+   long m_virt;
    long m_resident;
 
    int exit_signal;
 
+   time_t seenTs;
+   time_t tombTs;
+
    unsigned long int minflt;
    unsigned long int majflt;
-   #ifdef DEBUG
-   long int itrealvalue;
-   unsigned long int vsize;
-   long int rss;
-   unsigned long int rlim;
-   unsigned long int startcode;
-   unsigned long int endcode;
-   unsigned long int startstack;
-   unsigned long int kstkesp;
-   unsigned long int kstkeip;
-   unsigned long int signal;
-   unsigned long int blocked;
-   unsigned long int sigignore;
-   unsigned long int sigcatch;
-   unsigned long int wchan;
-   unsigned long int nswap;
-   unsigned long int cnswap;
-   #endif
 
+   unsigned int tree_left;
+   unsigned int tree_right;
+   unsigned int tree_depth;
+   unsigned int tree_index;
 } Process;
 
 typedef struct ProcessFieldData_ {
    const char* name;
    const char* title;
    const char* description;
-   int flags;
+   uint32_t flags;
 } ProcessFieldData;
 
 // Implemented in platform-specific code:
-void Process_writeField(Process* this, RichString* str, ProcessField field);
+void Process_writeField(const Process* this, RichString* str, ProcessField field);
 long Process_compare(const void* v1, const void* v2);
 void Process_delete(Object* cast);
-bool Process_isThread(Process* this);
+bool Process_isThread(const Process* this);
 extern ProcessFieldData Process_fields[];
 extern ProcessPidColumn Process_pidColumns[];
 extern char Process_pidFormat[20];
 
-typedef Process*(*Process_New)(struct Settings_*);
-typedef void (*Process_WriteField)(Process*, RichString*, ProcessField);
+typedef Process*(*Process_New)(const struct Settings_*);
+typedef void (*Process_WriteField)(const Process*, RichString*, ProcessField);
+typedef const char* (*Process_GetCommandStr)(const Process*);
 
 typedef struct ProcessClass_ {
    const ObjectClass super;
    const Process_WriteField writeField;
+   const Process_GetCommandStr getCommandStr;
 } ProcessClass;
 
-#define As_Process(this_)              ((ProcessClass*)((this_)->super.klass))
+#define As_Process(this_)              ((const ProcessClass*)((this_)->super.klass))
+
+#define Process_getCommand(this_)      (As_Process(this_)->getCommandStr ? As_Process(this_)->getCommandStr((const Process*)(this_)) : ((const Process*)(this_))->comm)
+
+static inline pid_t Process_getParentPid(const Process* this) {
+   return this->tgid == this->pid ? this->ppid : this->tgid;
+}
+
+static inline bool Process_isChildOf(const Process* this, pid_t pid) {
+   return pid == Process_getParentPid(this);
+}
+
+#define Process_sortState(state) ((state) == 'I' ? 0x100 : (state))
 
 
-#define ONE_K 1024L
+#define ONE_K 1024UL
 #define ONE_M (ONE_K * ONE_K)
 #define ONE_G (ONE_M * ONE_K)
+#define ONE_T (1ULL * ONE_G * ONE_K)
 
-#define ONE_DECIMAL_K 1000L
+#define ONE_DECIMAL_K 1000UL
 #define ONE_DECIMAL_M (ONE_DECIMAL_K * ONE_DECIMAL_K)
 #define ONE_DECIMAL_G (ONE_DECIMAL_M * ONE_DECIMAL_K)
+#define ONE_DECIMAL_T (1ULL * ONE_DECIMAL_G * ONE_DECIMAL_K)
 
-extern char Process_pidFormat[20];
+void Process_setupColumnWidths(void);
 
-void Process_setupColumnWidths();
-
-void Process_humanNumber(RichString* str, unsigned long number, bool coloring);
+void Process_humanNumber(RichString* str, unsigned long long number, bool coloring);
 
 void Process_colorNumber(RichString* str, unsigned long long number, bool coloring);
 
 void Process_printTime(RichString* str, unsigned long long totalHundredths);
 
+void Process_fillStarttimeBuffer(Process* this);
+
 void Process_outputRate(RichString* str, char* buffer, int n, double rate, int coloring);
 
-void Process_writeField(Process* this, RichString* str, ProcessField field);
-
-void Process_display(Object* cast, RichString* out);
+void Process_display(const Object* cast, RichString* out);
 
 void Process_done(Process* this);
 
-extern ProcessClass Process_class;
+extern const ProcessClass Process_class;
 
-void Process_init(Process* this, struct Settings_* settings);
+void Process_init(Process* this, const struct Settings_* settings);
 
 void Process_toggleTag(Process* this);
 
+bool Process_isNew(const Process* this);
+
+bool Process_isTomb(const Process* this);
+
 bool Process_setPriority(Process* this, int priority);
 
-bool Process_changePriorityBy(Process* this, size_t delta);
+bool Process_changePriorityBy(Process* this, Arg delta);
 
-void Process_sendSignal(Process* this, size_t sgn);
+bool Process_sendSignal(Process* this, Arg sgn);
 
 long Process_pidCompare(const void* v1, const void* v2);
 
-long Process_compare(const void* v1, const void* v2);
-
 #endif

ProcessList.c

@@ -1,104 +1,56 @@
 /*
 htop - ProcessList.c
 (C) 2004,2005 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "ProcessList.h"
-#include "Platform.h"
-
-#include "CRT.h"
-#include "StringUtils.h"
 
+#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
-/*{
-#include "Vector.h"
+#include "CRT.h"
 #include "Hashtable.h"
-#include "UsersTable.h"
-#include "Panel.h"
-#include "Process.h"
-#include "Settings.h"
+#include "Vector.h"
+#include "XUtils.h"
 
-#ifdef HAVE_LIBHWLOC
-#include <hwloc.h>
-#endif
 
-#ifndef MAX_NAME
-#define MAX_NAME 128
-#endif
-
-#ifndef MAX_READ
-#define MAX_READ 2048
-#endif
-
-typedef struct ProcessList_ {
-   Settings* settings;
-
-   Vector* processes;
-   Vector* processes2;
-   Hashtable* processTable;
-   UsersTable* usersTable;
-
-   Panel* panel;
-   int following;
-   uid_t userId;
-   const char* incFilter;
-   Hashtable* pidWhiteList;
-
-   #ifdef HAVE_LIBHWLOC
-   hwloc_topology_t topology;
-   bool topologyOk;
-   #endif
-
-   int totalTasks;
-   int runningTasks;
-   int userlandThreads;
-   int kernelThreads;
-
-   unsigned long long int totalMem;
-   unsigned long long int usedMem;
-   unsigned long long int freeMem;
-   unsigned long long int sharedMem;
-   unsigned long long int buffersMem;
-   unsigned long long int cachedMem;
-   unsigned long long int totalSwap;
-   unsigned long long int usedSwap;
-   unsigned long long int freeSwap;
-
-   int cpuCount;
-
-} ProcessList;
-
-ProcessList* ProcessList_new(UsersTable* ut, Hashtable* pidWhiteList, uid_t userId);
-void ProcessList_delete(ProcessList* pl);
-void ProcessList_goThroughEntries(ProcessList* pl);
-
-}*/
-
-ProcessList* ProcessList_init(ProcessList* this, ObjectClass* klass, UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
+ProcessList* ProcessList_init(ProcessList* this, const ObjectClass* klass, UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
    this->processes = Vector_new(klass, true, DEFAULT_SIZE);
-   this->processTable = Hashtable_new(140, false);
-   this->usersTable = usersTable;
-   this->pidWhiteList = pidWhiteList;
-   this->userId = userId;
+   this->processes2 = Vector_new(klass, true, DEFAULT_SIZE); // tree-view auxiliary buffer
 
-   // tree-view auxiliary buffer
-   this->processes2 = Vector_new(klass, true, DEFAULT_SIZE);
+   this->processTable = Hashtable_new(200, false);
+   this->displayTreeSet = Hashtable_new(200, false);
+   this->draftingTreeSet = Hashtable_new(200, false);
+
+   this->usersTable = usersTable;
+   this->pidMatchList = pidMatchList;
+
+   this->userId = userId;
 
    // set later by platform-specific code
    this->cpuCount = 0;
 
+   this->scanTs = 0;
+
 #ifdef HAVE_LIBHWLOC
    this->topologyOk = false;
-   int topoErr = hwloc_topology_init(&this->topology);
-   if (topoErr == 0) {
-      topoErr = hwloc_topology_load(this->topology);
-   }
-   if (topoErr == 0) {
-      this->topologyOk = true;
+   if (hwloc_topology_init(&this->topology) == 0) {
+      this->topologyOk =
+         #if HWLOC_API_VERSION < 0x00020000
+         /* try to ignore the top-level machine object type */
+         0 == hwloc_topology_ignore_type_keep_structure(this->topology, HWLOC_OBJ_MACHINE) &&
+         /* ignore caches, which don't add structure */
+         0 == hwloc_topology_ignore_type_keep_structure(this->topology, HWLOC_OBJ_CORE) &&
+         0 == hwloc_topology_ignore_type_keep_structure(this->topology, HWLOC_OBJ_CACHE) &&
+         0 == hwloc_topology_set_flags(this->topology, HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM) &&
+         #else
+         0 == hwloc_topology_set_all_types_filter(this->topology, HWLOC_TYPE_FILTER_KEEP_STRUCTURE) &&
+         #endif
+         0 == hwloc_topology_load(this->topology);
    }
 #endif
 
@@ -113,9 +65,13 @@ void ProcessList_done(ProcessList* this) {
       hwloc_topology_destroy(this->topology);
    }
 #endif
+
+   Hashtable_delete(this->draftingTreeSet);
+   Hashtable_delete(this->displayTreeSet);
    Hashtable_delete(this->processTable);
-   Vector_delete(this->processes);
+
    Vector_delete(this->processes2);
+   Vector_delete(this->processes);
 }
 
 void ProcessList_setPanel(ProcessList* this, Panel* panel) {
@@ -124,20 +80,31 @@ void ProcessList_setPanel(ProcessList* this, Panel* panel) {
 
 void ProcessList_printHeader(ProcessList* this, RichString* header) {
    RichString_prune(header);
-   ProcessField* fields = this->settings->fields;
+
+   const ProcessField* fields = this->settings->fields;
+
    for (int i = 0; fields[i]; i++) {
       const char* field = Process_fields[fields[i]].title;
-      if (!field) field = "- ";
-      if (!this->settings->treeView && this->settings->sortKey == fields[i])
-         RichString_append(header, CRT_colors[PANEL_SELECTION_FOCUS], field);
-      else
-         RichString_append(header, CRT_colors[PANEL_HEADER_FOCUS], field);
+      if (!field) {
+         field = "- ";
+      }
+
+      int color = (this->settings->sortKey == fields[i]) ?
+         CRT_colors[PANEL_SELECTION_FOCUS] : CRT_colors[PANEL_HEADER_FOCUS];
+      RichString_append(header, color, field);
+      if (COMM == fields[i] && this->settings->showMergedCommand) {
+         RichString_append(header, color, "(merged)");
+      }
    }
 }
 
 void ProcessList_add(ProcessList* this, Process* p) {
    assert(Vector_indexOf(this->processes, p, Process_pidCompare) == -1);
    assert(Hashtable_get(this->processTable, p->pid) == NULL);
+   p->processList = this;
+
+   // highlighting processes found in first scan by first scan marked "far in the past"
+   p->seenTs = this->scanTs;
 
    Vector_add(this->processes, p);
    Hashtable_put(this->processTable, p->pid, p);
@@ -150,104 +117,339 @@ void ProcessList_add(ProcessList* this, Process* p) {
 void ProcessList_remove(ProcessList* this, Process* p) {
    assert(Vector_indexOf(this->processes, p, Process_pidCompare) != -1);
    assert(Hashtable_get(this->processTable, p->pid) != NULL);
+
    Process* pp = Hashtable_remove(this->processTable, p->pid);
    assert(pp == p); (void)pp;
+
    unsigned int pid = p->pid;
    int idx = Vector_indexOf(this->processes, p, Process_pidCompare);
    assert(idx != -1);
-   if (idx >= 0) Vector_remove(this->processes, idx);
+
+   if (idx >= 0) {
+      Vector_remove(this->processes, idx);
+   }
+
    assert(Hashtable_get(this->processTable, pid) == NULL); (void)pid;
    assert(Hashtable_count(this->processTable) == Vector_count(this->processes));
 }
 
 Process* ProcessList_get(ProcessList* this, int idx) {
-   return (Process*) (Vector_get(this->processes, idx));
+   return (Process*)Vector_get(this->processes, idx);
 }
 
 int ProcessList_size(ProcessList* this) {
-   return (Vector_size(this->processes));
+   return Vector_size(this->processes);
 }
 
-static void ProcessList_buildTree(ProcessList* this, pid_t pid, int level, int indent, int direction, bool show) {
+// ProcessList_updateTreeSetLayer sorts this->displayTreeSet,
+// relying only on itself.
+//
+// Algorithm
+//
+// The algorithm is based on `depth-first search`,
+// even though `breadth-first search` approach may be more efficient on first glance,
+// after comparision it may be not, as it's not safe to go deeper without first updating the tree structure.
+// If it would be safe that approach would likely bring an advantage in performance.
+//
+// Each call of the function looks for a 'layer'. A 'layer' is a list of processes with the same depth.
+// First it sorts a list. Then it runs the function recursively for each element of the sorted list.
+// After that it updates the settings of processes.
+//
+// It relies on `leftBound` and `rightBound` as an optimization to cut the list size at the time it builds a 'layer'.
+//
+// It uses a temporary Hashtable `draftingTreeSet` because it's not safe to traverse a tree
+// and at the same time make changes in it.
+//
+static void ProcessList_updateTreeSetLayer(ProcessList* this, unsigned int leftBound, unsigned int rightBound, unsigned int deep, unsigned int left, unsigned int right, unsigned int* index, unsigned int* treeIndex, int indent) {
+
+   // It's guaranteed that layer_size is enough space
+   // but most likely it needs less. Specifically on first iteration.
+   int layerSize = (right - left) / 2;
+
+   // check if we reach `children` of `leaves`
+   if (layerSize == 0)
+      return;
+
+   Vector* layer = Vector_new(this->processes->type, false, layerSize);
+
+   // Find all processes on the same layer (process with the same `deep` value
+   // and included in a range from `leftBound` to `rightBound`).
+   //
+   // This loop also keeps track of left_bound and right_bound of these processes
+   // in order not to lose this information once the list is sorted.
+   //
+   // The variables left_bound and right_bound are different from what the values lhs and rhs represent.
+   // While left_bound and right_bound define a range of processes to look at, the values given by lhs and rhs are indices into an array
+   //
+   // In the below example note how filtering a range of indices i is different from filtering for processes in the bounds left_bound < x < right_bound …
+   //
+   // The nested tree set is sorted by left value, which is guaranteed upon entry/exit of this function.
+   //
+   // i | l | r
+   // 1 | 1 | 9
+   // 2 | 2 | 8
+   // 3 | 4 | 5
+   // 4 | 6 | 7
+   for (unsigned int i = leftBound; i < rightBound; i++) {
+      Process* proc = (Process*)Hashtable_get(this->displayTreeSet, i);
+      assert(proc);
+      if (proc && proc->tree_depth == deep && proc->tree_left > left && proc->tree_right < right) {
+         if (Vector_size(layer) > 0) {
+            Process* previous_process = (Process*)Vector_get(layer, Vector_size(layer) - 1);
+
+            // Make a 'right_bound' of previous_process in a layer the current process's index.
+            //
+            // Use 'tree_depth' as a temporal variable.
+            // It's safe to do as later 'tree_depth' will be renovated.
+            previous_process->tree_depth = proc->tree_index;
+         }
+
+         Vector_add(layer, proc);
+      }
+   }
+
+   // The loop above changes just up to process-1.
+   // So the last process of the layer isn't updated by the above code.
+   //
+   // Thus, if present, set the `rightBound` to the last process on the layer
+   if (Vector_size(layer) > 0) {
+      Process* previous_process = (Process*)Vector_get(layer, Vector_size(layer) - 1);
+      previous_process->tree_depth = rightBound;
+   }
+
+   Vector_quickSort(layer);
+
+   int size = Vector_size(layer);
+   for (int i = 0; i < size; i++) {
+      Process* proc = (Process*)Vector_get(layer, i);
+
+      unsigned int idx = (*index)++;
+      int newLeft = (*treeIndex)++;
+
+      int level = deep == 0 ? 0 : (int)deep - 1;
+      int currentIndent = indent == -1 ? 0 : indent | (1 << level);
+      int nextIndent = indent == -1 ? 0 : ((i < size - 1) ? currentIndent : indent);
+
+      unsigned int newLeftBound = proc->tree_index;
+      unsigned int newRightBound = proc->tree_depth;
+      ProcessList_updateTreeSetLayer(this, newLeftBound, newRightBound, deep + 1, proc->tree_left, proc->tree_right, index, treeIndex, nextIndent);
+
+      int newRight = (*treeIndex)++;
+
+      proc->tree_left = newLeft;
+      proc->tree_right = newRight;
+      proc->tree_index = idx;
+      proc->tree_depth = deep;
+
+      if (indent == -1) {
+         proc->indent = 0;
+      } else if (i == size - 1) {
+         proc->indent = -currentIndent;
+      } else {
+         proc->indent = currentIndent;
+      }
+
+      Hashtable_put(this->draftingTreeSet, proc->tree_index, proc);
+
+      // It's not strictly necessary to do this, but doing so anyways
+      // allows for checking the correctness of the inner workings.
+      Hashtable_remove(this->displayTreeSet, newLeftBound);
+   }
+
+   Vector_delete(layer);
+}
+
+static void ProcessList_updateTreeSet(ProcessList* this) {
+   unsigned int index = 0;
+   unsigned int tree_index = 1;
+
+   const int vsize = Vector_size(this->processes);
+
+   assert(Hashtable_count(this->draftingTreeSet) == 0);
+   assert((int)Hashtable_count(this->displayTreeSet) == vsize);
+
+   ProcessList_updateTreeSetLayer(this, 0, vsize, 0, 0, vsize * 2 + 1, &index, &tree_index, -1);
+
+   Hashtable* tmp = this->draftingTreeSet;
+   this->draftingTreeSet = this->displayTreeSet;
+   this->displayTreeSet = tmp;
+
+   assert(Hashtable_count(this->draftingTreeSet) == 0);
+   assert((int)Hashtable_count(this->displayTreeSet) == vsize);
+}
+
+static void ProcessList_buildTreeBranch(ProcessList* this, pid_t pid, int level, int indent, int direction, bool show, int* node_counter, int* node_index) {
    Vector* children = Vector_new(Class(Process), false, DEFAULT_SIZE);
 
    for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
-      Process* process = (Process*) (Vector_get(this->processes, i));
-      if (process->show && (process->tgid == pid || (process->tgid == process->pid && process->ppid == pid))) {
-         process = (Process*) (Vector_take(this->processes, i));
+      Process* process = (Process*)Vector_get(this->processes, i);
+      if (process->show && Process_isChildOf(process, pid)) {
+         process = (Process*)Vector_take(this->processes, i);
          Vector_add(children, process);
       }
    }
+
    int size = Vector_size(children);
    for (int i = 0; i < size; i++) {
-      Process* process = (Process*) (Vector_get(children, i));
-      if (!show)
+      int index = (*node_index)++;
+      Process* process = (Process*)Vector_get(children, i);
+
+      int lft = (*node_counter)++;
+
+      if (!show) {
          process->show = false;
-      int s = this->processes2->items;
-      if (direction == 1)
+      }
+
+      int s = Vector_size(this->processes2);
+      if (direction == 1) {
          Vector_add(this->processes2, process);
-      else
+      } else {
          Vector_insert(this->processes2, 0, process);
-      assert(this->processes2->items == s+1); (void)s;
+      }
+
+      assert(Vector_size(this->processes2) == s + 1); (void)s;
+
       int nextIndent = indent | (1 << level);
-      ProcessList_buildTree(this, process->pid, level+1, (i < size - 1) ? nextIndent : indent, direction, show ? process->showChildren : false);
-      if (i == size - 1)
+      ProcessList_buildTreeBranch(this, process->pid, level + 1, (i < size - 1) ? nextIndent : indent, direction, show ? process->showChildren : false, node_counter, node_index);
+      if (i == size - 1) {
          process->indent = -nextIndent;
-      else
+      } else {
          process->indent = nextIndent;
       }
+
+      int rht = (*node_counter)++;
+
+      process->tree_left = lft;
+      process->tree_right = rht;
+      process->tree_depth = level + 1;
+      process->tree_index = index;
+      Hashtable_put(this->displayTreeSet, index, process);
+   }
    Vector_delete(children);
 }
 
-void ProcessList_sort(ProcessList* this) {
-   if (!this->settings->treeView) {
-      Vector_insertionSort(this->processes);
-   } else {
-      // Save settings
-      int direction = this->settings->direction;
-      int sortKey = this->settings->sortKey;
-      // Sort by PID
-      this->settings->sortKey = PID;
-      this->settings->direction = 1;
-      Vector_quickSort(this->processes);
-      // Restore settings
-      this->settings->sortKey = sortKey;
-      this->settings->direction = direction;
-      // Take PID 1 as root and add to the new listing
-      int vsize = Vector_size(this->processes);
-      Process* init = (Process*) (Vector_take(this->processes, 0));
-      if (!init) return;
-      // This assertion crashes on hardened kernels.
-      // I wonder how well tree view works on those systems.
-      // assert(init->pid == 1);
-      init->indent = 0;
-      Vector_add(this->processes2, init);
-      // Recursively empty list
-      ProcessList_buildTree(this, init->pid, 0, 0, direction, true);
-      // Add leftovers
-      while (Vector_size(this->processes)) {
-         Process* p = (Process*) (Vector_take(this->processes, 0));
-         p->indent = 0;
-         Vector_add(this->processes2, p);
-         ProcessList_buildTree(this, p->pid, 0, 0, direction, p->showChildren);
+static long ProcessList_treeProcessCompare(const void* v1, const void* v2) {
+   const Process *p1 = (const Process*)v1;
+   const Process *p2 = (const Process*)v2;
+
+   return SPACESHIP_NUMBER(p1->tree_left, p2->tree_left);
 }
-      assert(Vector_size(this->processes2) == vsize); (void)vsize;
-      assert(Vector_size(this->processes) == 0);
+
+static long ProcessList_treeProcessCompareByPID(const void* v1, const void* v2) {
+   const Process *p1 = (const Process*)v1;
+   const Process *p2 = (const Process*)v2;
+
+   return SPACESHIP_NUMBER(p1->pid, p2->pid);
+}
+
+// Builds a sorted tree from scratch, without relying on previously gathered information
+static void ProcessList_buildTree(ProcessList* this) {
+   int node_counter = 1;
+   int node_index = 0;
+   int direction = this->settings->direction;
+
+   // Sort by PID
+   Vector_quickSortCustomCompare(this->processes, ProcessList_treeProcessCompareByPID);
+   int vsize = Vector_size(this->processes);
+
+   // Find all processes whose parent is not visible
+   int size;
+   while ((size = Vector_size(this->processes))) {
+      int i;
+      for (i = 0; i < size; i++) {
+         Process* process = (Process*)Vector_get(this->processes, i);
+
+         // Immediately consume processes hidden from view
+         if (!process->show) {
+            process = (Process*)Vector_take(this->processes, i);
+            process->indent = 0;
+            process->tree_depth = 0;
+            process->tree_left = node_counter++;
+            process->tree_index = node_index++;
+            Vector_add(this->processes2, process);
+            ProcessList_buildTreeBranch(this, process->pid, 0, 0, direction, false, &node_counter, &node_index);
+            process->tree_right = node_counter++;
+            Hashtable_put(this->displayTreeSet, process->tree_index, process);
+            break;
+         }
+
+         pid_t ppid = Process_getParentPid(process);
+
+         // Bisect the process vector to find parent
+         int l = 0;
+         int r = size;
+
+         // If PID corresponds with PPID (e.g. "kernel_task" (PID:0, PPID:0)
+         // on Mac OS X 10.11.6) cancel bisecting and regard this process as
+         // root.
+         if (process->pid == ppid)
+            r = 0;
+
+         // On Linux both the init process (pid 1) and the root UMH kernel thread (pid 2)
+         // use a ppid of 0. As that PID can't exist, we can skip searching for it.
+         if (!ppid)
+            r = 0;
+
+         while (l < r) {
+            int c = (l + r) / 2;
+            pid_t pid = ((Process*)Vector_get(this->processes, c))->pid;
+            if (ppid == pid) {
+               break;
+            } else if (ppid < pid) {
+               r = c;
+            } else {
+               l = c + 1;
+            }
+         }
+
+         // If parent not found, then construct the tree with this node as root
+         if (l >= r) {
+            process = (Process*)Vector_take(this->processes, i);
+            process->indent = 0;
+            process->tree_depth = 0;
+            process->tree_left = node_counter++;
+            process->tree_index = node_index++;
+            Vector_add(this->processes2, process);
+            Hashtable_put(this->displayTreeSet, process->tree_index, process);
+            ProcessList_buildTreeBranch(this, process->pid, 0, 0, direction, process->showChildren, &node_counter, &node_index);
+            process->tree_right = node_counter++;
+            break;
+         }
+      }
+
+      // There should be no loop in the process tree
+      assert(i < size);
+   }
+
    // Swap listings around
    Vector* t = this->processes;
    this->processes = this->processes2;
    this->processes2 = t;
+
+   // Check consistency of the built structures
+   assert(Vector_size(this->processes) == vsize); (void)vsize;
+   assert(Vector_size(this->processes2) == 0);
+}
+
+void ProcessList_sort(ProcessList* this) {
+   if (this->settings->treeView) {
+      ProcessList_updateTreeSet(this);
+      Vector_quickSortCustomCompare(this->processes, ProcessList_treeProcessCompare);
+   } else {
+      Vector_insertionSort(this->processes);
    }
 }
 
-
-ProcessField ProcessList_keyAt(ProcessList* this, int at) {
+ProcessField ProcessList_keyAt(const ProcessList* this, int at) {
    int x = 0;
-   ProcessField* fields = this->settings->fields;
+   const ProcessField* fields = this->settings->fields;
    ProcessField field;
    for (int i = 0; (field = fields[i]); i++) {
       const char* title = Process_fields[field].title;
-      if (!title) title = "- ";
+      if (!title) {
+         title = "- ";
+      }
+
       int len = strlen(title);
       if (at >= x && at <= x + len) {
          return field;
@@ -281,8 +483,8 @@ void ProcessList_rebuildPanel(ProcessList* this) {
 
       if ( (!p->show)
          || (this->userId != (uid_t) -1 && (p->st_uid != this->userId))
-         || (incFilter && !(String_contains_i(p->comm, incFilter)))
-         || (this->pidWhiteList && !Hashtable_get(this->pidWhiteList, p->tgid)) )
+         || (incFilter && !(String_contains_i(Process_getCommand(p), incFilter)))
+         || (this->pidMatchList && !Hashtable_get(this->pidMatchList, p->tgid)) )
          hidden = true;
 
       if (!hidden) {
@@ -310,12 +512,20 @@ Process* ProcessList_getProcess(ProcessList* this, pid_t pid, bool* preExisting,
    return proc;
 }
 
-void ProcessList_scan(ProcessList* this) {
+void ProcessList_scan(ProcessList* this, bool pauseProcessUpdate) {
+   struct timespec now;
+
+   // in pause mode only gather global data for meters (CPU/memory/...)
+   if (pauseProcessUpdate) {
+      ProcessList_goThroughEntries(this, true);
+      return;
+   }
 
    // mark all process as "dirty"
    for (int i = 0; i < Vector_size(this->processes); i++) {
       Process* p = (Process*) Vector_get(this->processes, i);
       p->updated = false;
+      p->wasShown = p->show;
       p->show = true;
    }
 
@@ -324,13 +534,46 @@ void ProcessList_scan(ProcessList* this) {
    this->kernelThreads = 0;
    this->runningTasks = 0;
 
-   ProcessList_goThroughEntries(this);
+
+   // set scanTs
+   static bool firstScanDone = false;
+   if (!firstScanDone) {
+      this->scanTs = 0;
+      firstScanDone = true;
+   } else if (clock_gettime(CLOCK_MONOTONIC, &now) == 0) {
+      this->scanTs = now.tv_sec;
+   }
+
+   ProcessList_goThroughEntries(this, false);
 
    for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
       Process* p = (Process*) Vector_get(this->processes, i);
-      if (p->updated == false)
+      if (p->tombTs > 0) {
+         // remove tombed process
+         if (this->scanTs >= p->tombTs) {
             ProcessList_remove(this, p);
-      else
+         }
+      } else if (p->updated == false) {
+         // process no longer exists
+         if (this->settings->highlightChanges && p->wasShown) {
+            // mark tombed
+            p->tombTs = this->scanTs + this->settings->highlightDelaySecs;
+         } else {
+            // immediately remove
+            ProcessList_remove(this, p);
+         }
+      } else {
          p->updated = false;
       }
    }
+
+   if (this->settings->treeView) {
+      // Clear out the hashtable to avoid any left-over processes from previous build
+      //
+      // The sorting algorithm relies on the fact that
+      // len(this->displayTreeSet) == len(this->processes)
+      Hashtable_clear(this->displayTreeSet);
+
+      ProcessList_buildTree(this);
+   }
+}

ProcessList.h

@@ -1,25 +1,31 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ProcessList
 #define HEADER_ProcessList
 /*
 htop - ProcessList.h
 (C) 2004,2005 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Vector.h"
+#include "config.h" // IWYU pragma: keep
+
+#include <stdbool.h>
+#include <sys/types.h>
+
 #include "Hashtable.h"
-#include "UsersTable.h"
+#include "Object.h"
 #include "Panel.h"
 #include "Process.h"
+#include "RichString.h"
 #include "Settings.h"
+#include "UsersTable.h"
+#include "Vector.h"
 
 #ifdef HAVE_LIBHWLOC
 #include <hwloc.h>
 #endif
 
+
 #ifndef MAX_NAME
 #define MAX_NAME 128
 #endif
@@ -29,18 +35,21 @@ in the source distribution for its full text.
 #endif
 
 typedef struct ProcessList_ {
-   Settings* settings;
+   const Settings* settings;
 
    Vector* processes;
    Vector* processes2;
    Hashtable* processTable;
    UsersTable* usersTable;
 
+   Hashtable* displayTreeSet;
+   Hashtable* draftingTreeSet;
+
    Panel* panel;
    int following;
    uid_t userId;
    const char* incFilter;
-   Hashtable* pidWhiteList;
+   Hashtable* pidMatchList;
 
    #ifdef HAVE_LIBHWLOC
    hwloc_topology_t topology;
@@ -54,8 +63,6 @@ typedef struct ProcessList_ {
 
    unsigned long long int totalMem;
    unsigned long long int usedMem;
-   unsigned long long int freeMem;
-   unsigned long long int sharedMem;
    unsigned long long int buffersMem;
    unsigned long long int cachedMem;
    unsigned long long int totalSwap;
@@ -64,14 +71,15 @@ typedef struct ProcessList_ {
 
    int cpuCount;
 
+   time_t scanTs;
 } ProcessList;
 
-ProcessList* ProcessList_new(UsersTable* ut, Hashtable* pidWhiteList, uid_t userId);
+ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId);
 void ProcessList_delete(ProcessList* pl);
-void ProcessList_goThroughEntries(ProcessList* pl);
+void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate);
 
 
-ProcessList* ProcessList_init(ProcessList* this, ObjectClass* klass, UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId);
+ProcessList* ProcessList_init(ProcessList* this, const ObjectClass* klass, UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId);
 
 void ProcessList_done(ProcessList* this);
 
@@ -89,7 +97,7 @@ int ProcessList_size(ProcessList* this);
 
 void ProcessList_sort(ProcessList* this);
 
-ProcessField ProcessList_keyAt(ProcessList* this, int at);
+ProcessField ProcessList_keyAt(const ProcessList* this, int at);
 
 void ProcessList_expandTree(ProcessList* this);
 
@@ -97,6 +105,6 @@ void ProcessList_rebuildPanel(ProcessList* this);
 
 Process* ProcessList_getProcess(ProcessList* this, pid_t pid, bool* preExisting, Process_New constructor);
 
-void ProcessList_scan(ProcessList* this);
+void ProcessList_scan(ProcessList* this, bool pauseProcessUpdate);
 
 #endif

ProcessLocksScreen.c

@@ -0,0 +1,105 @@
+/*
+htop - ProcessLocksScreen.c
+(C) 2020 htop dev team
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "ProcessLocksScreen.h"
+
+#include <inttypes.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "Panel.h"
+#include "Platform.h"
+#include "ProvideCurses.h"
+#include "Vector.h"
+#include "XUtils.h"
+
+
+ProcessLocksScreen* ProcessLocksScreen_new(const Process* process) {
+   ProcessLocksScreen* this = xMalloc(sizeof(ProcessLocksScreen));
+   Object_setClass(this, Class(ProcessLocksScreen));
+   if (Process_isThread(process))
+      this->pid = process->tgid;
+   else
+      this->pid = process->pid;
+   return (ProcessLocksScreen*) InfoScreen_init(&this->super, process, NULL, LINES-3, "        ID  TYPE       EXCLUSION  READ/WRITE DEVICE:INODE                              START                  END  FILENAME");
+}
+
+void ProcessLocksScreen_delete(Object* this) {
+   free(InfoScreen_done((InfoScreen*)this));
+}
+
+static void ProcessLocksScreen_draw(InfoScreen* this) {
+   InfoScreen_drawTitled(this, "Snapshot of file locks of process %d - %s", ((ProcessLocksScreen*)this)->pid, Process_getCommand(this->process));
+}
+
+static inline void FileLocks_Data_clear(FileLocks_Data* data) {
+   free(data->locktype);
+   free(data->exclusive);
+   free(data->readwrite);
+   free(data->filename);
+}
+
+static void ProcessLocksScreen_scan(InfoScreen* this) {
+   Panel* panel = this->display;
+   int idx = Panel_getSelectedIndex(panel);
+   Panel_prune(panel);
+   FileLocks_ProcessData* pdata = Platform_getProcessLocks(((ProcessLocksScreen*)this)->pid);
+   if (!pdata) {
+      InfoScreen_addLine(this, "This feature is not supported on your platform.");
+   } else if (pdata->error) {
+      InfoScreen_addLine(this, "Could not determine file locks.");
+   } else {
+      FileLocks_LockData* ldata = pdata->locks;
+      if (!ldata) {
+         InfoScreen_addLine(this, "No locks have been found for the selected process.");
+      }
+      while (ldata) {
+         FileLocks_Data* data = &ldata->data;
+
+         char entry[512];
+         if (ULLONG_MAX == data->end) {
+            xSnprintf(entry, sizeof(entry), "%10d  %-10s %-10s %-10s %02x:%02x:%020"PRIu64" %20"PRIu64" %20s  %s",
+               data->id,
+               data->locktype, data->exclusive, data->readwrite,
+               data->dev[0], data->dev[1], data->inode,
+               data->start, "<END OF FILE>",
+               data->filename ? data->filename : "<N/A>"
+            );
+         } else {
+            xSnprintf(entry, sizeof(entry), "%10d  %-10s %-10s %-10s %02x:%02x:%020"PRIu64" %20"PRIu64" %20"PRIu64"  %s",
+               data->id,
+               data->locktype, data->exclusive, data->readwrite,
+               data->dev[0], data->dev[1], data->inode,
+               data->start, data->end,
+               data->filename ? data->filename : "<N/A>"
+            );
+         }
+
+         InfoScreen_addLine(this, entry);
+         FileLocks_Data_clear(&ldata->data);
+
+         FileLocks_LockData* old = ldata;
+         ldata = ldata->next;
+         free(old);
+      }
+   }
+   free(pdata);
+   Vector_insertionSort(this->lines);
+   Vector_insertionSort(panel->items);
+   Panel_setSelected(panel, idx);
+}
+
+const InfoScreenClass ProcessLocksScreen_class = {
+   .super = {
+      .extends = Class(Object),
+      .delete = ProcessLocksScreen_delete
+   },
+   .scan = ProcessLocksScreen_scan,
+   .draw = ProcessLocksScreen_draw
+};

ProcessLocksScreen.h

@@ -0,0 +1,52 @@
+#ifndef HEADER_ProcessLocksScreen
+#define HEADER_ProcessLocksScreen
+/*
+htop - ProcessLocksScreen.h
+(C) 2020 htop dev team
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "InfoScreen.h"
+#include "Object.h"
+#include "Process.h"
+
+
+typedef struct ProcessLocksScreen_ {
+   InfoScreen super;
+   pid_t pid;
+} ProcessLocksScreen;
+
+typedef struct FileLocks_Data_ {
+   char* locktype;
+   char* exclusive;
+   char* readwrite;
+   char* filename;
+   int id;
+   unsigned int dev[2];
+   uint64_t inode;
+   uint64_t start;
+   uint64_t end;
+} FileLocks_Data;
+
+typedef struct FileLocks_LockData_ {
+   FileLocks_Data data;
+   struct FileLocks_LockData_* next;
+} FileLocks_LockData;
+
+typedef struct FileLocks_ProcessData_ {
+   bool error;
+   struct FileLocks_LockData_* locks;
+} FileLocks_ProcessData;
+
+extern const InfoScreenClass ProcessLocksScreen_class;
+
+ProcessLocksScreen* ProcessLocksScreen_new(const Process* process);
+
+void ProcessLocksScreen_delete(Object* this);
+
+#endif

ProvideCurses.h

@@ -0,0 +1,34 @@
+#ifndef HEADER_ProvideCurses
+#define HEADER_ProvideCurses
+/*
+htop - RichString.h
+(C) 2004,2011 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+
+#include "config.h"
+
+// IWYU pragma: begin_exports
+
+#ifdef HAVE_NCURSESW_CURSES_H
+#include <ncursesw/curses.h>
+#elif defined(HAVE_NCURSES_NCURSES_H)
+#include <ncurses/ncurses.h>
+#elif defined(HAVE_NCURSES_CURSES_H)
+#include <ncurses/curses.h>
+#elif defined(HAVE_NCURSES_H)
+#include <ncurses.h>
+#elif defined(HAVE_CURSES_H)
+#include <curses.h>
+#endif
+
+#ifdef HAVE_LIBNCURSESW
+#include <wchar.h>
+#include <wctype.h>
+#endif
+
+// IWYU pragma: end_exports
+
+#endif // HEADER_ProvideCurses

README

@@ -1,60 +1,69 @@
-[![Build Status](https://travis-ci.org/hishamhm/htop.svg?branch=master)](https://travis-ci.org/hishamhm/htop)
-[![PayPal donate](https://img.shields.io/badge/paypal-donate-green.svg)](http://hisham.hm/htop/index.php?page=donate)
+# [![htop](htop.png)](https://htop.dev)
 
-[htop](http://hisham.hm/htop/)
-====
+[![CI](https://github.com/htop-dev/htop/workflows/CI/badge.svg)](https://github.com/htop-dev/htop/actions)
+[![Coverity Scan Build Status](https://scan.coverity.com/projects/21665/badge.svg)](https://scan.coverity.com/projects/21665)
+[![Mailing List](https://img.shields.io/badge/Mailing%20List-htop-blue.svg)](https://groups.io/g/htop)
+[![IRC #htop](https://img.shields.io/badge/IRC-htop-blue.svg)](https://webchat.freenode.net/#htop)
+[![Github Release](https://img.shields.io/github/release/htop-dev/htop.svg)](https://github.com/htop-dev/htop/releases/latest)
+[![Download](https://api.bintray.com/packages/htop/source/htop/images/download.svg)](https://bintray.com/htop/source/htop/_latestVersion)
 
-by Hisham Muhammad <hisham@gobolinux.org> (2004 - 2016)
+![Screenshot of htop](docs/images/screenshot.png?raw=true)
 
-Introduction
-------------
+## Introduction
 
-This is `htop`, an interactive process viewer.
-It requires `ncurses`. It is developed primarily on Linux,
-but we also have code for running under FreeBSD and Mac OS X
-(help and testing are wanted for these platforms!)
+`htop` is a cross-platform interactive process viewer.
 
-This software has evolved considerably over the years,
-and is reasonably complete, but there is always room for improvement.
+`htop` allows scrolling the list of processes vertically and horizontally to see their full command lines and related information like memory and CPU consumption.
 
-Comparison between `htop` and classic `top`
--------------------------------------------
+The information displayed is configurable through a graphical setup and can be sorted and filtered interactively.
 
-* In `htop` you can scroll the list vertically and horizontally
-  to see all processes and full command lines.
-* In `top` you are subject to a delay for each unassigned
-  key you press (especially annoying when multi-key escape
-  sequences are triggered by accident).
-* `htop` starts faster (`top` seems to collect data for a while
-  before displaying anything).
-* In `htop` you don't need to type the process number to
-  kill a process, in `top` you do.
-* In `htop` you don't need to type the process number or
-  the priority value to renice a process, in `top` you do.
-* In `htop` you can kill multiple processes at once.
-* `top` is older, hence, more tested.
+Tasks related to processes (e.g. killing and renicing) can be done without entering their PIDs.
 
-Compilation instructions
-------------------------
+Running `htop` requires `ncurses` libraries (typically named libncursesw*).
 
-This program is distributed as a standard autotools-based package.
-See the [INSTALL](/INSTALL) file for detailed instructions.
+For more information and details on how to contribute to `htop` visit [htop.dev](https://htop.dev).
 
-When compiling from a release tarball, run:
+## Build instructions
 
+This program is distributed as a standard GNU autotools-based package.
+
+Compiling `htop` requires the header files for `ncurses` (libncursesw*-dev). Install these and other required packages for C development from your package manager.
+
+Then, when compiling from a [release tarball](https://bintray.com/htop/source/htop), run:
+
+~~~ shell
 ./configure && make
+~~~
 
-For compiling sources downloaded from the Git repository, run:
+Alternatively, for compiling sources downloaded from the Git repository (`git clone` or downloads from [Github releases](https://github.com/htop-dev/htop/releases/)),
+install the header files for `ncurses` (libncursesw*-dev) and other required development packages from your distribution's package manager. Then run:
 
+~~~ shell
 ./autogen.sh && ./configure && make
+~~~
 
-By default `make install` will install into `/usr/local`, for changing
-the path use `./configure --prefix=/some/path`.
+By default `make install` will install into `/usr/local`, for changing the path use `./configure --prefix=/some/path`.
 
-See the manual page (`man htop`) or the on-line help ('F1' or 'h'
-inside `htop`) for a list of supported key commands.
+See the manual page (`man htop`) or the on-line help ('F1' or 'h' inside `htop`) for a list of supported key commands.
 
-If not all keys work check your curses configuration.
+## Support
+
+If you have trouble running `htop` please consult your Operating System / Linux distribution documentation for getting support and filing bugs.
+
+## Bugs, development feedback
+
+We have a [development mailing list](https://htop.dev/mailinglist.html). Feel free to subscribe for release announcements or asking questions on the development of htop.
+
+You can also join our IRC channel #htop on freenode and talk to the developers there.
+
+If you have found an issue with the source of htop, please check whether this has already been reported in our [Github issue tracker](https://github.com/htop-dev/htop/issues).
+If not, please file a new issue describing the problem you have found, the location in the source code you are referring to and a possible fix.
+
+## History
+
+`htop` was invented, developed and maintained by Hisham Muhammad from 2004 to 2019. His [legacy repository](https://github.com/hishamhm/htop/) has been archived to preserve the history.
+
+In 2020 a [team](https://github.com/orgs/htop-dev/people) took over the development amicably and continues to maintain `htop` collaboratively.
 
 ## License
 

RichString.c

@@ -1,67 +1,18 @@
 /*
 htop - RichString.c
 (C) 2004,2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "RichString.h"
-#include "XAlloc.h"
 
 #include <stdlib.h>
 #include <string.h>
 
-#define RICHSTRING_MAXLEN 350
+#include "Macros.h"
+#include "XUtils.h"
 
-/*{
-#include "config.h"
-#include <ctype.h>
-
-#include <assert.h>
-#ifdef HAVE_NCURSESW_CURSES_H
-#include <ncursesw/curses.h>
-#elif HAVE_NCURSES_NCURSES_H
-#include <ncurses/ncurses.h>
-#elif HAVE_NCURSES_CURSES_H
-#include <ncurses/curses.h>
-#elif HAVE_NCURSES_H
-#include <ncurses.h>
-#elif HAVE_CURSES_H
-#include <curses.h>
-#endif
-
-#ifdef HAVE_LIBNCURSESW
-#include <wctype.h>
-#endif
-
-#define RichString_size(this) ((this)->chlen)
-#define RichString_sizeVal(this) ((this).chlen)
-
-#define RichString_begin(this) RichString (this); memset(&this, 0, sizeof(RichString)); (this).chptr = (this).chstr;
-#define RichString_beginAllocated(this) memset(&this, 0, sizeof(RichString)); (this).chptr = (this).chstr;
-#define RichString_end(this) RichString_prune(&(this));
-
-#ifdef HAVE_LIBNCURSESW
-#define RichString_printVal(this, y, x) mvadd_wchstr(y, x, (this).chptr)
-#define RichString_printoffnVal(this, y, x, off, n) mvadd_wchnstr(y, x, (this).chptr + off, n)
-#define RichString_getCharVal(this, i) ((this).chptr[i].chars[0] & 255)
-#define RichString_setChar(this, at, ch) do{ (this)->chptr[(at)] = (CharType) { .chars = { ch, 0 } }; } while(0)
-#define CharType cchar_t
-#else
-#define RichString_printVal(this, y, x) mvaddchstr(y, x, (this).chptr)
-#define RichString_printoffnVal(this, y, x, off, n) mvaddchnstr(y, x, (this).chptr + off, n)
-#define RichString_getCharVal(this, i) ((this).chptr[i])
-#define RichString_setChar(this, at, ch) do{ (this)->chptr[(at)] = ch; } while(0)
-#define CharType chtype
-#endif
-
-typedef struct RichString_ {
-   int chlen;
-   CharType* chptr;
-   CharType chstr[RICHSTRING_MAXLEN+1];
-} RichString;
-
-}*/
 
 #define charBytes(n) (sizeof(CharType) * (n))
 
@@ -85,7 +36,14 @@ static void RichString_extendLen(RichString* this, int len) {
    this->chlen = len;
 }
 
-#define RichString_setLen(this, len) do{ if(len < RICHSTRING_MAXLEN && this->chlen < RICHSTRING_MAXLEN) { RichString_setChar(this,len,0); this->chlen=len; } else RichString_extendLen(this,len); }while(0)
+static void RichString_setLen(RichString* this, int len) {
+   if (len < RICHSTRING_MAXLEN && this->chlen < RICHSTRING_MAXLEN) {
+      RichString_setChar(this, len, 0);
+      this->chlen = len;
+   } else {
+      RichString_extendLen(this, len);
+   }
+}
 
 #ifdef HAVE_LIBNCURSESW
 
@@ -94,6 +52,7 @@ static inline void RichString_writeFrom(RichString* this, int attrs, const char*
    len = mbstowcs(data, data_c, len);
    if (len < 0)
       return;
+
    int newLen = from + len;
    RichString_setLen(this, newLen);
    for (int i = from, j = 0; i < newLen; i++, j++) {
@@ -103,6 +62,7 @@ static inline void RichString_writeFrom(RichString* this, int attrs, const char*
 
 inline void RichString_setAttrn(RichString* this, int attrs, int start, int finish) {
    cchar_t* ch = this->chptr + start;
+   finish = CLAMP(finish, 0, this->chlen - 1);
    for (int i = start; i <= finish; i++) {
       ch->attr = attrs;
       ch++;
@@ -120,18 +80,20 @@ int RichString_findChar(RichString* this, char c, int start) {
    return -1;
 }
 
-#else
+#else /* HAVE_LIBNCURSESW */
 
 static inline void RichString_writeFrom(RichString* this, int attrs, const char* data_c, int from, int len) {
    int newLen = from + len;
    RichString_setLen(this, newLen);
-   for (int i = from, j = 0; i < newLen; i++, j++)
+   for (int i = from, j = 0; i < newLen; i++, j++) {
       this->chptr[i] = (data_c[j] >= 32 ? data_c[j] : '?') | attrs;
+   }
    this->chptr[newLen] = 0;
 }
 
 void RichString_setAttrn(RichString* this, int attrs, int start, int finish) {
    chtype* ch = this->chptr + start;
+   finish = CLAMP(finish, 0, this->chlen - 1);
    for (int i = start; i <= finish; i++) {
       *ch = (*ch & 0xff) | attrs;
       ch++;
@@ -148,7 +110,7 @@ int RichString_findChar(RichString* this, char c, int start) {
    return -1;
 }
 
-#endif
+#endif /* HAVE_LIBNCURSESW */
 
 void RichString_prune(RichString* this) {
    if (this->chlen > RICHSTRING_MAXLEN)
@@ -157,6 +119,15 @@ void RichString_prune(RichString* this) {
    this->chptr = this->chstr;
 }
 
+void RichString_appendChr(RichString* this, char c, int count) {
+   int from = this->chlen;
+   int newLen = from + count;
+   RichString_setLen(this, newLen);
+   for (int i = from; i < newLen; i++) {
+      RichString_setChar(this, i, c);
+   }
+}
+
 void RichString_setAttr(RichString* this, int attrs) {
    RichString_setAttrn(this, attrs, 0, this->chlen - 1);
 }

RichString.h

@@ -1,86 +1,57 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_RichString
 #define HEADER_RichString
 /*
 htop - RichString.h
 (C) 2004,2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#define RICHSTRING_MAXLEN 350
-
 #include "config.h"
-#include <ctype.h>
 
-#include <assert.h>
-#ifdef HAVE_NCURSESW_CURSES_H
-#include <ncursesw/curses.h>
-#elif HAVE_NCURSES_NCURSES_H
-#include <ncurses/ncurses.h>
-#elif HAVE_NCURSES_CURSES_H
-#include <ncurses/curses.h>
-#elif HAVE_NCURSES_H
-#include <ncurses.h>
-#elif HAVE_CURSES_H
-#include <curses.h>
-#endif
+#include "ProvideCurses.h"
 
-#ifdef HAVE_LIBNCURSESW
-#include <wctype.h>
-#endif
 
 #define RichString_size(this) ((this)->chlen)
 #define RichString_sizeVal(this) ((this).chlen)
 
-#define RichString_begin(this) RichString (this); memset(&this, 0, sizeof(RichString)); (this).chptr = (this).chstr;
-#define RichString_beginAllocated(this) memset(&this, 0, sizeof(RichString)); (this).chptr = (this).chstr;
-#define RichString_end(this) RichString_prune(&(this));
+#define RichString_begin(this) RichString (this); RichString_beginAllocated(this)
+#define RichString_beginAllocated(this) do { memset(&(this), 0, sizeof(RichString)); (this).chptr = (this).chstr; } while(0)
+#define RichString_end(this) RichString_prune(&(this))
 
 #ifdef HAVE_LIBNCURSESW
 #define RichString_printVal(this, y, x) mvadd_wchstr(y, x, (this).chptr)
-#define RichString_printoffnVal(this, y, x, off, n) mvadd_wchnstr(y, x, (this).chptr + off, n)
+#define RichString_printoffnVal(this, y, x, off, n) mvadd_wchnstr(y, x, (this).chptr + (off), n)
 #define RichString_getCharVal(this, i) ((this).chptr[i].chars[0] & 255)
 #define RichString_setChar(this, at, ch) do { (this)->chptr[(at)] = (CharType) { .chars = { ch, 0 } }; } while (0)
 #define CharType cchar_t
 #else
 #define RichString_printVal(this, y, x) mvaddchstr(y, x, (this).chptr)
-#define RichString_printoffnVal(this, y, x, off, n) mvaddchnstr(y, x, (this).chptr + off, n)
+#define RichString_printoffnVal(this, y, x, off, n) mvaddchnstr(y, x, (this).chptr + (off), n)
 #define RichString_getCharVal(this, i) ((this).chptr[i])
 #define RichString_setChar(this, at, ch) do { (this)->chptr[(at)] = ch; } while (0)
 #define CharType chtype
 #endif
 
+#define RICHSTRING_MAXLEN 350
+
 typedef struct RichString_ {
    int chlen;
    CharType* chptr;
    CharType chstr[RICHSTRING_MAXLEN + 1];
+   int highlightAttr;
 } RichString;
 
-
-#define charBytes(n) (sizeof(CharType) * (n)) 
-
-#define RichString_setLen(this, len) do{ if(len < RICHSTRING_MAXLEN && this->chlen < RICHSTRING_MAXLEN) { RichString_setChar(this,len,0); this->chlen=len; } else RichString_extendLen(this,len); }while(0)
-
-#ifdef HAVE_LIBNCURSESW
-
-extern void RichString_setAttrn(RichString* this, int attrs, int start, int finish);
-
-int RichString_findChar(RichString* this, char c, int start);
-
-#else
-
 void RichString_setAttrn(RichString* this, int attrs, int start, int finish);
 
 int RichString_findChar(RichString* this, char c, int start);
 
-#endif
-
 void RichString_prune(RichString* this);
 
 void RichString_setAttr(RichString* this, int attrs);
 
+void RichString_appendChr(RichString* this, char c, int count);
+
 void RichString_append(RichString* this, int attrs, const char* data);
 
 void RichString_appendn(RichString* this, int attrs, const char* data, int len);

ScreenManager.c

@@ -1,61 +1,37 @@
 /*
 htop - ScreenManager.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "ScreenManager.h"
-#include "ProcessList.h"
-
-#include "Object.h"
-#include "CRT.h"
 
 #include <assert.h>
-#include <time.h>
-#include <stdlib.h>
 #include <stdbool.h>
+#include <stdlib.h>
+#include <sys/time.h>
 
-/*{
+#include "CRT.h"
 #include "FunctionBar.h"
-#include "Vector.h"
-#include "Header.h"
-#include "Settings.h"
-#include "Panel.h"
+#include "Object.h"
+#include "ProcessList.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
 
-typedef enum Orientation_ {
-   VERTICAL,
-   HORIZONTAL
-} Orientation;
 
-typedef struct ScreenManager_ {
-   int x1;
-   int y1;
-   int x2;
-   int y2;
-   Orientation orientation;
-   Vector* panels;
-   int panelCount;
-   const Header* header;
-   const Settings* settings;
-   bool owner;
-   bool allowFocusChange;
-} ScreenManager;
-
-}*/
-
-ScreenManager* ScreenManager_new(int x1, int y1, int x2, int y2, Orientation orientation, const Header* header, const Settings* settings, bool owner) {
+ScreenManager* ScreenManager_new(Header* header, const Settings* settings, const State* state, bool owner) {
    ScreenManager* this;
    this = xMalloc(sizeof(ScreenManager));
-   this->x1 = x1;
-   this->y1 = y1;
-   this->x2 = x2;
-   this->y2 = y2;
-   this->orientation = orientation;
+   this->x1 = 0;
+   this->y1 = header->height;
+   this->x2 = 0;
+   this->y2 = -1;
    this->panels = Vector_new(Class(Panel), owner, DEFAULT_SIZE);
    this->panelCount = 0;
    this->header = header;
    this->settings = settings;
+   this->state = state;
    this->owner = owner;
    this->allowFocusChange = true;
    return this;
@@ -71,7 +47,6 @@ inline int ScreenManager_size(ScreenManager* this) {
 }
 
 void ScreenManager_add(ScreenManager* this, Panel* item, int size) {
-   if (this->orientation == HORIZONTAL) {
    int lastX = 0;
    if (this->panelCount > 0) {
       Panel* last = (Panel*) Vector_get(this->panels, this->panelCount - 1);
@@ -84,8 +59,6 @@ void ScreenManager_add(ScreenManager* this, Panel* item, int size) {
       Panel_resize(item, COLS - this->x1 + this->x2 - lastX, height);
    }
    Panel_move(item, lastX, this->y1);
-   }
-   // TODO: VERTICAL
    Vector_add(this->panels, item);
    item->needsRedraw = true;
    this->panelCount++;
@@ -104,7 +77,6 @@ void ScreenManager_resize(ScreenManager* this, int x1, int y1, int x2, int y2) {
    this->x2 = x2;
    this->y2 = y2;
    int panels = this->panelCount;
-   if (this->orientation == HORIZONTAL) {
    int lastX = 0;
    for (int i = 0; i < panels - 1; i++) {
       Panel* panel = (Panel*) Vector_get(this->panels, i);
@@ -116,8 +88,6 @@ void ScreenManager_resize(ScreenManager* this, int x1, int y1, int x2, int y2) {
    Panel_resize(panel, COLS - x1 + x2 - lastX, LINES - y1 + y2);
    Panel_move(panel, lastX, y1);
 }
-   // TODO: VERTICAL
-}
 
 static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTimeout, bool* redraw, bool* rescan, bool* timedOut) {
    ProcessList* pl = this->header->pl;
@@ -125,12 +95,17 @@ static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTi
    struct timeval tv;
    gettimeofday(&tv, NULL);
    double newTime = ((double)tv.tv_sec * 10) + ((double)tv.tv_usec / 100000);
+
    *timedOut = (newTime - *oldTime > this->settings->delay);
-   *rescan = *rescan || *timedOut;
-   if (newTime < *oldTime) *rescan = true; // clock was adjusted?
+   *rescan |= *timedOut;
+
+   if (newTime < *oldTime) {
+      *rescan = true; // clock was adjusted?
+   }
+
    if (*rescan) {
       *oldTime = newTime;
-      ProcessList_scan(pl);
+      ProcessList_scan(pl, this->state->pauseProcessUpdate);
       if (*sortTimeout == 0 || this->settings->treeView) {
          ProcessList_sort(pl);
          *sortTimeout = 1;
@@ -145,20 +120,20 @@ static void checkRecalculation(ScreenManager* this, double* oldTime, int* sortTi
 }
 
 static void ScreenManager_drawPanels(ScreenManager* this, int focus) {
-   int nPanels = this->panelCount;
+   const int nPanels = this->panelCount;
    for (int i = 0; i < nPanels; i++) {
       Panel* panel = (Panel*) Vector_get(this->panels, i);
-      Panel_draw(panel, i == focus);
-      if (i < nPanels) {
-         if (this->orientation == HORIZONTAL) {
+      Panel_draw(panel, i == focus, !((panel == this->state->panel) && this->state->hideProcessSelection));
       mvvline(panel->y, panel->x + panel->w, ' ', panel->h + 1);
    }
 }
-   }
+
+static Panel* setCurrentPanel(const ScreenManager* this, Panel* panel) {
+   FunctionBar_draw(panel->currentBar);
+   if (panel == this->state->panel && this->state->pauseProcessUpdate) {
+      FunctionBar_append("PAUSED", CRT_colors[PAUSED]);
    }
 
-static Panel* setCurrentPanel(Panel* panel) {
-   FunctionBar_draw(panel->currentBar, NULL);
    return panel;
 }
 
@@ -166,7 +141,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
    bool quit = false;
    int focus = 0;
 
-   Panel* panelFocus = setCurrentPanel((Panel*) Vector_get(this->panels, focus));
+   Panel* panelFocus = setCurrentPanel(this, (Panel*) Vector_get(this->panels, focus));
 
    double oldTime = 0.0;
 
@@ -193,7 +168,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
       ch = getch();
 
       HandlerResult result = IGNORED;
-      if (ch == KEY_MOUSE) {
+      if (ch == KEY_MOUSE && this->settings->enableMouse) {
          ch = ERR;
          MEVENT mevent;
          int ok = getmouse(&mevent);
@@ -212,7 +187,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
                            ch = KEY_MOUSE;
                            if (panel == panelFocus || this->allowFocusChange) {
                               focus = i;
-                              panelFocus = setCurrentPanel(panel);
+                              panelFocus = setCurrentPanel(this, panel);
                               Object* oldSelection = Panel_getSelected(panel);
                               Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV - 1);
                               if (Panel_getSelected(panel) == oldSelection) {
@@ -240,8 +215,9 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
             if (closeTimeout == 100) {
                break;
             }
-         } else
+         } else {
             closeTimeout = 0;
+         }
          redraw = false;
          continue;
       }
@@ -283,14 +259,21 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
          if (this->panelCount < 2) {
             goto defaultHandler;
          }
-         if (!this->allowFocusChange)
+
+         if (!this->allowFocusChange) {
             break;
+         }
+
 tryLeft:
-         if (focus > 0)
+         if (focus > 0) {
             focus--;
-         panelFocus = setCurrentPanel((Panel*) Vector_get(this->panels, focus));
-         if (Panel_size(panelFocus) == 0 && focus > 0)
+         }
+
+         panelFocus = setCurrentPanel(this, (Panel*) Vector_get(this->panels, focus));
+         if (Panel_size(panelFocus) == 0 && focus > 0) {
             goto tryLeft;
+         }
+
          break;
       case KEY_RIGHT:
       case KEY_CTRL('F'):
@@ -298,18 +281,24 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
          if (this->panelCount < 2) {
             goto defaultHandler;
          }
-         if (!this->allowFocusChange)
+         if (!this->allowFocusChange) {
             break;
+         }
+
 tryRight:
-         if (focus < this->panelCount - 1)
+         if (focus < this->panelCount - 1) {
             focus++;
-         panelFocus = setCurrentPanel((Panel*) Vector_get(this->panels, focus));
-         if (Panel_size(panelFocus) == 0 && focus < this->panelCount - 1)
+         }
+
+         panelFocus = setCurrentPanel(this, (Panel*) Vector_get(this->panels, focus));
+         if (Panel_size(panelFocus) == 0 && focus < this->panelCount - 1) {
             goto tryRight;
+         }
+
          break;
-      case KEY_F(10):
-      case 'q':
       case 27:
+      case 'q':
+      case KEY_F(10):
          quit = true;
          continue;
       default:
@@ -320,8 +309,11 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
       }
    }
 
-   if (lastFocus)
+   if (lastFocus) {
       *lastFocus = panelFocus;
-   if (lastKey)
+   }
+
+   if (lastKey) {
       *lastKey = ch;
    }
+}

ScreenManager.h

@@ -1,45 +1,40 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_ScreenManager
 #define HEADER_ScreenManager
 /*
 htop - ScreenManager.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "FunctionBar.h"
-#include "Vector.h"
-#include "Header.h"
-#include "Settings.h"
-#include "Panel.h"
+#include <stdbool.h>
+
+#include "Action.h"
+#include "Header.h"
+#include "Panel.h"
+#include "Settings.h"
+#include "Vector.h"
 
-typedef enum Orientation_ {
-   VERTICAL,
-   HORIZONTAL
-} Orientation;
 
 typedef struct ScreenManager_ {
    int x1;
    int y1;
    int x2;
    int y2;
-   Orientation orientation;
    Vector* panels;
    int panelCount;
-   const Header* header;
+   Header* header;
    const Settings* settings;
+   const State* state;
    bool owner;
    bool allowFocusChange;
 } ScreenManager;
 
-
-ScreenManager* ScreenManager_new(int x1, int y1, int x2, int y2, Orientation orientation, const Header* header, const Settings* settings, bool owner);
+ScreenManager* ScreenManager_new(Header* header, const Settings* settings, const State* state, bool owner);
 
 void ScreenManager_delete(ScreenManager* this);
 
-extern int ScreenManager_size(ScreenManager* this);
+int ScreenManager_size(ScreenManager* this);
 
 void ScreenManager_add(ScreenManager* this, Panel* item, int size);
 

Settings.c

@@ -1,77 +1,28 @@
 /*
 htop - Settings.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "Settings.h"
-#include "Platform.h"
 
-#include "StringUtils.h"
-#include "Vector.h"
-#include "CRT.h"
-
-#include <sys/stat.h>
+#include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <unistd.h>
+#include <sys/stat.h>
 
-#define DEFAULT_DELAY 15
+#include "CRT.h"
+#include "Macros.h"
+#include "Meter.h"
+#include "Platform.h"
+#include "XUtils.h"
 
-/*{
-#include "Process.h"
-#include <stdbool.h>
-
-typedef struct {
-   int len;
-   char** names;
-   int* modes;
-} MeterColumnSettings;
-
-typedef struct Settings_ {
-   char* filename;
-   
-   MeterColumnSettings columns[2];
-
-   ProcessField* fields;
-   int flags;
-   int colorScheme;
-   int delay;
-
-   int cpuCount;
-   int direction;
-   ProcessField sortKey;
-
-   bool countCPUsFromZero;
-   bool detailedCPUTime;
-   bool treeView;
-   bool showProgramPath;
-   bool hideThreads;
-   bool shadowOtherUsers;
-   bool showThreadNames;
-   bool hideKernelThreads;
-   bool hideUserlandThreads;
-   bool highlightBaseName;
-   bool highlightMegabytes;
-   bool highlightThreads;
-   bool updateProcessNames;
-   bool accountGuestInCPUMeter;
-   bool headerMargin;
-
-   bool changed;
-} Settings;
-
-#ifndef Settings_cpuId
-#define Settings_cpuId(settings, cpu) ((settings)->countCPUsFromZero ? (cpu) : (cpu)+1)
-#endif
-
-}*/
 
 void Settings_delete(Settings* this) {
    free(this->filename);
    free(this->fields);
-   for (unsigned int i = 0; i < (sizeof(this->columns)/sizeof(MeterColumnSettings)); i++) {
+   for (unsigned int i = 0; i < ARRAYSIZE(this->columns); i++) {
       String_freeArray(this->columns[i].names);
       free(this->columns[i].modes);
    }
@@ -80,16 +31,14 @@ void Settings_delete(Settings* this) {
 
 static void Settings_readMeters(Settings* this, char* line, int column) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    this->columns[column].names = ids;
 }
 
 static void Settings_readMeterModes(Settings* this, char* line, int column) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    int len = 0;
    for (int i = 0; ids[i]; i++) {
@@ -104,9 +53,9 @@ static void Settings_readMeterModes(Settings* this, char* line, int column) {
    this->columns[column].modes = modes;
 }
 
-static void Settings_defaultMeters(Settings* this) {
+static void Settings_defaultMeters(Settings* this, int initialCpuCount) {
    int sizes[] = { 3, 3 };
-   if (this->cpuCount > 4) {
+   if (initialCpuCount > 4) {
       sizes[1]++;
    }
    for (int i = 0; i < 2; i++) {
@@ -114,14 +63,13 @@ static void Settings_defaultMeters(Settings* this) {
       this->columns[i].modes = xCalloc(sizes[i], sizeof(int));
       this->columns[i].len = sizes[i];
    }
-   
    int r = 0;
-   if (this->cpuCount > 8) {
+   if (initialCpuCount > 8) {
       this->columns[0].names[0] = xStrdup("LeftCPUs2");
       this->columns[0].modes[0] = BAR_METERMODE;
       this->columns[1].names[r] = xStrdup("RightCPUs2");
       this->columns[1].modes[r++] = BAR_METERMODE;
-   } else if (this->cpuCount > 4) {
+   } else if (initialCpuCount > 4) {
       this->columns[0].names[0] = xStrdup("LeftCPUs");
       this->columns[0].modes[0] = BAR_METERMODE;
       this->columns[1].names[r] = xStrdup("RightCPUs");
@@ -134,7 +82,6 @@ static void Settings_defaultMeters(Settings* this) {
    this->columns[0].modes[1] = BAR_METERMODE;
    this->columns[0].names[2] = xStrdup("Swap");
    this->columns[0].modes[2] = BAR_METERMODE;
-   
    this->columns[1].names[r] = xStrdup("Tasks");
    this->columns[1].modes[r++] = TEXT_METERMODE;
    this->columns[1].names[r] = xStrdup("LoadAverage");
@@ -143,17 +90,16 @@ static void Settings_defaultMeters(Settings* this) {
    this->columns[1].modes[r++] = TEXT_METERMODE;
 }
 
-static void readFields(ProcessField* fields, int* flags, const char* line) {
+static void readFields(ProcessField* fields, uint32_t* flags, const char* line) {
    char* trim = String_trim(line);
-   int nIds;
-   char** ids = String_split(trim, ' ', &nIds);
+   char** ids = String_split(trim, ' ', NULL);
    free(trim);
    int i, j;
    *flags = 0;
    for (j = 0, i = 0; i < Platform_numberOfFields && ids[i]; i++) {
       // This "+1" is for compatibility with the older enum format.
       int id = atoi(ids[i]) + 1;
-      if (id > 0 && Process_fields[id].name && id < Platform_numberOfFields) {
+      if (id > 0 && id < Platform_numberOfFields && Process_fields[id].name) {
          fields[j] = id;
          *flags |= Process_fields[id].flags;
          j++;
@@ -163,23 +109,22 @@ static void readFields(ProcessField* fields, int* flags, const char* line) {
    String_freeArray(ids);
 }
 
-static bool Settings_read(Settings* this, const char* fileName) {
+static bool Settings_read(Settings* this, const char* fileName, int initialCpuCount) {
    FILE* fd;
-   uid_t euid = geteuid();
-
-   (void) seteuid(getuid());
+   CRT_dropPrivileges();
    fd = fopen(fileName, "r");
-   (void) seteuid(euid);
+   CRT_restorePrivileges();
    if (!fd)
       return false;
 
-   bool readMeters = false;
+   bool didReadMeters = false;
+   bool didReadFields = false;
    for (;;) {
       char* line = String_readLine(fd);
       if (!line) {
          break;
       }
-      int nOptions;
+      size_t nOptions;
       char** option = String_split(line, '=', &nOptions);
       free (line);
       if (nOptions < 2) {
@@ -188,6 +133,7 @@ static bool Settings_read(Settings* this, const char* fileName) {
       }
       if (String_eq(option[0], "fields")) {
          readFields(this->fields, &(this->flags), option[1]);
+         didReadFields = true;
       } else if (String_eq(option[0], "sort_key")) {
          // This "+1" is for compatibility with the older enum format.
          this->sortKey = atoi(option[1]) + 1;
@@ -195,8 +141,6 @@ static bool Settings_read(Settings* this, const char* fileName) {
          this->direction = atoi(option[1]);
       } else if (String_eq(option[0], "tree_view")) {
          this->treeView = atoi(option[1]);
-      } else if (String_eq(option[0], "hide_threads")) {
-         this->hideThreads = atoi(option[1]);
       } else if (String_eq(option[0], "hide_kernel_threads")) {
          this->hideKernelThreads = atoi(option[1]);
       } else if (String_eq(option[0], "hide_userland_threads")) {
@@ -213,6 +157,16 @@ static bool Settings_read(Settings* this, const char* fileName) {
          this->highlightMegabytes = atoi(option[1]);
       } else if (String_eq(option[0], "highlight_threads")) {
          this->highlightThreads = atoi(option[1]);
+      } else if (String_eq(option[0], "highlight_changes")) {
+         this->highlightChanges = atoi(option[1]);
+      } else if (String_eq(option[0], "highlight_changes_delay_secs")) {
+         this->highlightDelaySecs = CLAMP(atoi(option[1]), 1, 24*60*60);
+      } else if (String_eq(option[0], "find_comm_in_cmdline")) {
+         this->findCommInCmdline = atoi(option[1]);
+      } else if (String_eq(option[0], "strip_exe_from_cmdline")) {
+         this->stripExeFromCmdline = atoi(option[1]);
+      } else if (String_eq(option[0], "show_merged_command")) {
+         this->showMergedCommand = atoi(option[1]);
       } else if (String_eq(option[0], "header_margin")) {
          this->headerMargin = atoi(option[1]);
       } else if (String_eq(option[0], "expand_system_time")) {
@@ -220,69 +174,96 @@ static bool Settings_read(Settings* this, const char* fileName) {
          this->detailedCPUTime = atoi(option[1]);
       } else if (String_eq(option[0], "detailed_cpu_time")) {
          this->detailedCPUTime = atoi(option[1]);
+      } else if (String_eq(option[0], "cpu_count_from_one")) {
+         this->countCPUsFromOne = atoi(option[1]);
       } else if (String_eq(option[0], "cpu_count_from_zero")) {
-         this->countCPUsFromZero = atoi(option[1]);
+         // old (inverted) naming also supported for backwards compatibility
+         this->countCPUsFromOne = !atoi(option[1]);
+      } else if (String_eq(option[0], "show_cpu_usage")) {
+         this->showCPUUsage = atoi(option[1]);
+      } else if (String_eq(option[0], "show_cpu_frequency")) {
+         this->showCPUFrequency = atoi(option[1]);
+      #ifdef HAVE_SENSORS_SENSORS_H
+      } else if (String_eq(option[0], "show_cpu_temperature")) {
+         this->showCPUTemperature = atoi(option[1]);
+      } else if (String_eq(option[0], "degree_fahrenheit")) {
+         this->degreeFahrenheit = atoi(option[1]);
+      #endif
       } else if (String_eq(option[0], "update_process_names")) {
          this->updateProcessNames = atoi(option[1]);
       } else if (String_eq(option[0], "account_guest_in_cpu_meter")) {
          this->accountGuestInCPUMeter = atoi(option[1]);
       } else if (String_eq(option[0], "delay")) {
-         this->delay = atoi(option[1]);
+         this->delay = CLAMP(atoi(option[1]), 1, 255);
       } else if (String_eq(option[0], "color_scheme")) {
          this->colorScheme = atoi(option[1]);
-         if (this->colorScheme < 0 || this->colorScheme >= LAST_COLORSCHEME) this->colorScheme = 0;
+         if (this->colorScheme < 0 || this->colorScheme >= LAST_COLORSCHEME) {
+            this->colorScheme = 0;
+         }
+      } else if (String_eq(option[0], "enable_mouse")) {
+         this->enableMouse = atoi(option[1]);
       } else if (String_eq(option[0], "left_meters")) {
          Settings_readMeters(this, option[1], 0);
-         readMeters = true;
+         didReadMeters = true;
       } else if (String_eq(option[0], "right_meters")) {
          Settings_readMeters(this, option[1], 1);
-         readMeters = true;
+         didReadMeters = true;
       } else if (String_eq(option[0], "left_meter_modes")) {
          Settings_readMeterModes(this, option[1], 0);
-         readMeters = true;
+         didReadMeters = true;
       } else if (String_eq(option[0], "right_meter_modes")) {
          Settings_readMeterModes(this, option[1], 1);
-         readMeters = true;
+         didReadMeters = true;
+      #ifdef HAVE_LIBHWLOC
+      } else if (String_eq(option[0], "topology_affinity")) {
+         this->topologyAffinity = !!atoi(option[1]);
+      #endif
       }
       String_freeArray(option);
    }
    fclose(fd);
-   if (!readMeters) {
-      Settings_defaultMeters(this);
+   if (!didReadMeters) {
+      Settings_defaultMeters(this, initialCpuCount);
    }
-   return true;
+   return didReadFields;
 }
 
 static void writeFields(FILE* fd, ProcessField* fields, const char* name) {
    fprintf(fd, "%s=", name);
+   const char* sep = "";
    for (int i = 0; fields[i]; i++) {
       // This "-1" is for compatibility with the older enum format.
-      fprintf(fd, "%d ", (int) fields[i]-1);
+      fprintf(fd, "%s%d", sep, (int) fields[i] - 1);
+      sep = " ";
    }
    fprintf(fd, "\n");
 }
 
 static void writeMeters(Settings* this, FILE* fd, int column) {
+   const char* sep = "";
    for (int i = 0; i < this->columns[column].len; i++) {
-      fprintf(fd, "%s ", this->columns[column].names[i]);
+      fprintf(fd, "%s%s", sep, this->columns[column].names[i]);
+      sep = " ";
    }
    fprintf(fd, "\n");
 }
 
 static void writeMeterModes(Settings* this, FILE* fd, int column) {
+   const char* sep = "";
    for (int i = 0; i < this->columns[column].len; i++) {
-      fprintf(fd, "%d ", this->columns[column].modes[i]);
+      fprintf(fd, "%s%d", sep, this->columns[column].modes[i]);
+      sep = " ";
    }
    fprintf(fd, "\n");
 }
 
 bool Settings_write(Settings* this) {
    FILE* fd;
-   uid_t euid = geteuid();
 
-   (void) seteuid(getuid());
+   CRT_dropPrivileges();
    fd = fopen(this->filename, "w");
-   (void) seteuid(euid);
+   CRT_restorePrivileges();
+
    if (fd == NULL) {
       return false;
    }
@@ -292,7 +273,6 @@ bool Settings_write(Settings* this) {
    // This "-1" is for compatibility with the older enum format.
    fprintf(fd, "sort_key=%d\n", (int) this->sortKey - 1);
    fprintf(fd, "sort_direction=%d\n", (int) this->direction);
-   fprintf(fd, "hide_threads=%d\n", (int) this->hideThreads);
    fprintf(fd, "hide_kernel_threads=%d\n", (int) this->hideKernelThreads);
    fprintf(fd, "hide_userland_threads=%d\n", (int) this->hideUserlandThreads);
    fprintf(fd, "shadow_other_users=%d\n", (int) this->shadowOtherUsers);
@@ -301,29 +281,42 @@ bool Settings_write(Settings* this) {
    fprintf(fd, "highlight_base_name=%d\n", (int) this->highlightBaseName);
    fprintf(fd, "highlight_megabytes=%d\n", (int) this->highlightMegabytes);
    fprintf(fd, "highlight_threads=%d\n", (int) this->highlightThreads);
+   fprintf(fd, "highlight_changes=%d\n", (int) this->highlightChanges);
+   fprintf(fd, "highlight_changes_delay_secs=%d\n", (int) this->highlightDelaySecs);
+   fprintf(fd, "find_comm_in_cmdline=%d\n", (int) this->findCommInCmdline);
+   fprintf(fd, "strip_exe_from_cmdline=%d\n", (int) this->stripExeFromCmdline);
+   fprintf(fd, "show_merged_command=%d\n", (int) this->showMergedCommand);
    fprintf(fd, "tree_view=%d\n", (int) this->treeView);
    fprintf(fd, "header_margin=%d\n", (int) this->headerMargin);
    fprintf(fd, "detailed_cpu_time=%d\n", (int) this->detailedCPUTime);
-   fprintf(fd, "cpu_count_from_zero=%d\n", (int) this->countCPUsFromZero);
+   fprintf(fd, "cpu_count_from_one=%d\n", (int) this->countCPUsFromOne);
+   fprintf(fd, "show_cpu_usage=%d\n", (int) this->showCPUUsage);
+   fprintf(fd, "show_cpu_frequency=%d\n", (int) this->showCPUFrequency);
+   #ifdef HAVE_SENSORS_SENSORS_H
+   fprintf(fd, "show_cpu_temperature=%d\n", (int) this->showCPUTemperature);
+   fprintf(fd, "degree_fahrenheit=%d\n", (int) this->degreeFahrenheit);
+   #endif
    fprintf(fd, "update_process_names=%d\n", (int) this->updateProcessNames);
    fprintf(fd, "account_guest_in_cpu_meter=%d\n", (int) this->accountGuestInCPUMeter);
    fprintf(fd, "color_scheme=%d\n", (int) this->colorScheme);
+   fprintf(fd, "enable_mouse=%d\n", (int) this->enableMouse);
    fprintf(fd, "delay=%d\n", (int) this->delay);
    fprintf(fd, "left_meters="); writeMeters(this, fd, 0);
    fprintf(fd, "left_meter_modes="); writeMeterModes(this, fd, 0);
    fprintf(fd, "right_meters="); writeMeters(this, fd, 1);
    fprintf(fd, "right_meter_modes="); writeMeterModes(this, fd, 1);
+   #ifdef HAVE_LIBHWLOC
+   fprintf(fd, "topology_affinity=%d\n", (int) this->topologyAffinity);
+   #endif
    fclose(fd);
    return true;
 }
 
-Settings* Settings_new(int cpuCount) {
-  
+Settings* Settings_new(int initialCpuCount) {
    Settings* this = xCalloc(1, sizeof(Settings));
 
    this->sortKey = PERCENT_CPU;
    this->direction = 1;
-   this->hideThreads = false;
    this->shadowOtherUsers = false;
    this->showThreadNames = false;
    this->hideKernelThreads = false;
@@ -332,12 +325,24 @@ Settings* Settings_new(int cpuCount) {
    this->highlightBaseName = false;
    this->highlightMegabytes = false;
    this->detailedCPUTime = false;
-   this->countCPUsFromZero = false;
+   this->countCPUsFromOne = false;
+   this->showCPUUsage = true;
+   this->showCPUFrequency = false;
+   #ifdef HAVE_SENSORS_SENSORS_H
+   this->showCPUTemperature = false;
+   this->degreeFahrenheit = false;
+   #endif
    this->updateProcessNames = false;
-   this->cpuCount = cpuCount;
    this->showProgramPath = true;
    this->highlightThreads = true;
-   
+   this->highlightChanges = false;
+   this->highlightDelaySecs = DEFAULT_HIGHLIGHT_SECS;
+   this->findCommInCmdline = true;
+   this->stripExeFromCmdline = true;
+   this->showMergedCommand = false;
+   #ifdef HAVE_LIBHWLOC
+   this->topologyAffinity = false;
+   #endif
    this->fields = xCalloc(Platform_numberOfFields + 1, sizeof(ProcessField));
    // TODO: turn 'fields' into a Vector,
    // (and ProcessFields into proper objects).
@@ -354,7 +359,9 @@ Settings* Settings_new(int cpuCount) {
       this->filename = xStrdup(rcfile);
    } else {
       const char* home = getenv("HOME");
-      if (!home) home = "";
+      if (!home)
+         home = "";
+
       const char* xdgConfigHome = getenv("XDG_CONFIG_HOME");
       char* configDir = NULL;
       char* htopDir = NULL;
@@ -368,53 +375,61 @@ Settings* Settings_new(int cpuCount) {
          htopDir = String_cat(home, "/.config/htop");
       }
       legacyDotfile = String_cat(home, "/.htoprc");
-      uid_t euid = geteuid();
-      (void) seteuid(getuid());
+      CRT_dropPrivileges();
       (void) mkdir(configDir, 0700);
       (void) mkdir(htopDir, 0700);
       free(htopDir);
       free(configDir);
       struct stat st;
-      if (lstat(legacyDotfile, &st) != 0) {
-         st.st_mode = 0;
-      }
-      if (access(legacyDotfile, R_OK) != 0 || S_ISLNK(st.st_mode)) {
+      int err = lstat(legacyDotfile, &st);
+      if (err || S_ISLNK(st.st_mode)) {
          free(legacyDotfile);
          legacyDotfile = NULL;
       }
-      (void) seteuid(euid);
+      CRT_restorePrivileges();
    }
    this->colorScheme = 0;
+   this->enableMouse = true;
    this->changed = false;
    this->delay = DEFAULT_DELAY;
-   bool ok = Settings_read(this, legacyDotfile ? legacyDotfile : this->filename);
-   if (ok) {
+   bool ok = false;
    if (legacyDotfile) {
+      ok = Settings_read(this, legacyDotfile, initialCpuCount);
+      if (ok) {
          // Transition to new location and delete old configuration file
-         if (Settings_write(this))
+         if (Settings_write(this)) {
             unlink(legacyDotfile);
          }
-   } else {
-      this->changed = true;
-      // TODO: how to get SYSCONFDIR correctly through Autoconf?
-      char* systemSettings = String_cat(SYSCONFDIR, "/htoprc");
-      ok = Settings_read(this, systemSettings);
-      free(systemSettings);
-      if (!ok) {
-         Settings_defaultMeters(this);
-         this->hideKernelThreads = true;
-         this->highlightMegabytes = true;
-         this->highlightThreads = true;
-         this->headerMargin = true;
-      }
       }
       free(legacyDotfile);
+   }
+   if (!ok) {
+      ok = Settings_read(this, this->filename, initialCpuCount);
+   }
+   if (!ok) {
+      this->changed = true;
+      // TODO: how to get SYSCONFDIR correctly through Autoconf?
+      char* systemSettings = String_cat(SYSCONFDIR, "/htoprc");
+      ok = Settings_read(this, systemSettings, initialCpuCount);
+      free(systemSettings);
+   }
+   if (!ok) {
+      Settings_defaultMeters(this, initialCpuCount);
+      this->hideKernelThreads = true;
+      this->highlightMegabytes = true;
+      this->highlightThreads = true;
+      this->findCommInCmdline = true;
+      this->stripExeFromCmdline = true;
+      this->showMergedCommand = false;
+      this->headerMargin = true;
+   }
    return this;
 }
 
 void Settings_invertSortOrder(Settings* this) {
-   if (this->direction == 1)
+   if (this->direction == 1) {
       this->direction = -1;
-   else
+   } else {
       this->direction = 1;
    }
+}

Settings.h

@@ -1,18 +1,20 @@
-/* Do not edit this file. It was automatically generated. */
-
 #ifndef HEADER_Settings
 #define HEADER_Settings
 /*
 htop - Settings.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#define DEFAULT_DELAY 15
+#include "config.h" // IWYU pragma: keep
+
+#include <stdbool.h>
 
 #include "Process.h"
-#include <stdbool.h>
+
+
+#define DEFAULT_DELAY 15
 
 typedef struct {
    int len;
@@ -22,23 +24,26 @@ typedef struct {
 
 typedef struct Settings_ {
    char* filename;
-   
    MeterColumnSettings columns[2];
 
    ProcessField* fields;
-   int flags;
+   uint32_t flags;
    int colorScheme;
    int delay;
 
-   int cpuCount;
    int direction;
    ProcessField sortKey;
 
-   bool countCPUsFromZero;
+   bool countCPUsFromOne;
    bool detailedCPUTime;
+   bool showCPUUsage;
+   bool showCPUFrequency;
+   #ifdef HAVE_SENSORS_SENSORS_H
+   bool showCPUTemperature;
+   bool degreeFahrenheit;
+   #endif
    bool treeView;
    bool showProgramPath;
-   bool hideThreads;
    bool shadowOtherUsers;
    bool showThreadNames;
    bool hideKernelThreads;
@@ -46,23 +51,29 @@ typedef struct Settings_ {
    bool highlightBaseName;
    bool highlightMegabytes;
    bool highlightThreads;
+   bool highlightChanges;
+   int highlightDelaySecs;
+   bool findCommInCmdline;
+   bool stripExeFromCmdline;
+   bool showMergedCommand;
    bool updateProcessNames;
    bool accountGuestInCPUMeter;
    bool headerMargin;
+   bool enableMouse;
+   #ifdef HAVE_LIBHWLOC
+   bool topologyAffinity;
+   #endif
 
    bool changed;
 } Settings;
 
-#ifndef Settings_cpuId
-#define Settings_cpuId(settings, cpu) ((settings)->countCPUsFromZero ? (cpu) : (cpu)+1)
-#endif
-
+#define Settings_cpuId(settings, cpu) ((settings)->countCPUsFromOne ? (cpu)+1 : (cpu))
 
 void Settings_delete(Settings* this);
 
 bool Settings_write(Settings* this);
 
-Settings* Settings_new(int cpuCount);
+Settings* Settings_new(int initialCpuCount);
 
 void Settings_invertSortOrder(Settings* this);
 

SignalsPanel.c

@@ -1,43 +1,48 @@
 /*
 htop - SignalsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Panel.h"
 #include "SignalsPanel.h"
-#include "Platform.h"
 
-#include "ListItem.h"
-#include "RichString.h"
-
-#include <stdlib.h>
-#include <assert.h>
 #include <signal.h>
+#include <stdbool.h>
 
-#include <ctype.h>
+#include "FunctionBar.h"
+#include "ListItem.h"
+#include "Object.h"
+#include "Panel.h"
+#include "Platform.h"
+#include "XUtils.h"
 
-/*{
-
-typedef struct SignalItem_ {
-   const char* name;
-   int number;
-} SignalItem;
-
-}*/
 
 Panel* SignalsPanel_new() {
    Panel* this = Panel_new(1, 1, 1, 1, true, Class(ListItem), FunctionBar_newEnterEsc("Send   ", "Cancel "));
    const int defaultSignal = SIGTERM;
    int defaultPosition = 15;
-   for(unsigned int i = 0; i < Platform_numberOfSignals; i++) {
+   unsigned int i;
+   for (i = 0; i < Platform_numberOfSignals; i++) {
       Panel_set(this, i, (Object*) ListItem_new(Platform_signals[i].name, Platform_signals[i].number));
       // signal 15 is not always the 15th signal in the table
       if (Platform_signals[i].number == defaultSignal) {
          defaultPosition = i;
       }
    }
+   #if (defined(SIGRTMIN) && defined(SIGRTMAX))
+   if (SIGRTMAX - SIGRTMIN <= 100) {
+      static char buf[16];
+      for (int sig = SIGRTMIN; sig <= SIGRTMAX; i++, sig++) {
+         int n = sig - SIGRTMIN;
+         xSnprintf(buf, sizeof(buf), "%2d SIGRTMIN%-+3d", sig, n);
+         if (n == 0) {
+            buf[11] = '\0';
+         }
+         Panel_set(this, i, (Object*) ListItem_new(buf, sig));
+      }
+   }
+   #endif
    Panel_setHeader(this, "Send signal:");
    Panel_setSelected(this, defaultPosition);
    return this;