Changelog for htop 2.0.2

Allow to override ncurses*-config path

Action.c

@@ -271,7 +271,7 @@ static Htop_Reaction actionQuit() {
 static Htop_Reaction actionSetAffinity(State* st) {
    if (st->pl->cpuCount == 1)
       return HTOP_OK;
-#if (HAVE_LIBHWLOC || HAVE_NATIVE_AFFINITY)
+#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
    Panel* panel = st->panel;
    
    Process* p = (Process*) Panel_getSelected(panel);
@@ -328,7 +328,7 @@ static Htop_Reaction actionFilterByUser(State* st) {
    return HTOP_REFRESH | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;
 }
 
-static Htop_Reaction actionFollow(State* st) {
+Htop_Reaction Action_follow(State* st) {
    st->pl->following = MainPanel_selectedPid((MainPanel*)st->panel);
    Panel_setSelectionColor(st->panel, CRT_colors[PANEL_SELECTION_FOLLOW]);
    return HTOP_KEEP_FOLLOWING;
@@ -387,6 +387,7 @@ static struct { const char* key; const char* info; } helpLeft[] = {
    { .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 = "      u: ", .info = "show processes of a single user" },
    { .key = "      H: ", .info = "hide/show user process threads" },
    { .key = "      K: ", .info = "hide/show kernel threads" },
@@ -405,11 +406,11 @@ static struct { const char* key; const char* info; } helpRight[] = {
    { .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_NATIVE_AFFINITY)
+#if (HAVE_LIBHWLOC || HAVE_LINUX_AFFINITY)
    { .key = "      a: ", .info = "set CPU affinity" },
 #endif
    { .key = "      e: ", .info = "show process environment" },
-   { .key = "      i: ", .info = "set IO prority" },
+   { .key = "      i: ", .info = "set IO priority" },
    { .key = "      l: ", .info = "list open files with lsof" },
    { .key = "      s: ", .info = "trace syscalls with strace" },
    { .key = "         ", .info = "" },
@@ -479,8 +480,8 @@ static Htop_Reaction actionHelp(State* st) {
    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(15, 32, "threads");
+   mvaddstr(16, 32, "threads");
-   mvaddstr(16, 26, "threads");
+   mvaddstr(17, 26, "threads");
    attrset(CRT_colors[DEFAULT_COLOR]);
 
    attrset(CRT_colors[HELP_BOLD]);
@@ -556,7 +557,7 @@ void Action_setBindings(Htop_Action* keys) {
    keys['='] = actionExpandOrCollapse;
    keys['-'] = actionExpandOrCollapse;
    keys['u'] = actionFilterByUser;
-   keys['F'] = actionFollow;
+   keys['F'] = Action_follow;
    keys['S'] = actionSetup;
    keys['C'] = actionSetup;
    keys[KEY_F(2)] = actionSetup;

Action.h

@@ -49,6 +49,8 @@ Htop_Reaction Action_setSortKey(Settings* settings, ProcessField sortKey);
 
 // ----------------------------------------
 
+Htop_Reaction Action_follow(State* st);
+
 
 void Action_setBindings(Htop_Action* keys);
 

Affinity.c

@@ -10,8 +10,13 @@ in the source distribution for its full text.
 #include <stdlib.h>
 
 #ifdef HAVE_LIBHWLOC
-#include <hwloc/linux.h>
+#include <hwloc.h>
-#elif HAVE_NATIVE_AFFINITY
+#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 <sched.h>
 #endif
 
@@ -55,7 +60,7 @@ void Affinity_add(Affinity* this, int id) {
 
 Affinity* Affinity_get(Process* proc, ProcessList* pl) {
    hwloc_cpuset_t cpuset = hwloc_bitmap_alloc();
-   bool ok = (hwloc_linux_get_tid_cpubind(pl->topology, proc->pid, cpuset) == 0);
+   bool ok = (hwloc_get_proc_cpubind(pl->topology, proc->pid, cpuset, HTOP_HWLOC_CPUBIND_FLAG) == 0);
    Affinity* affinity = NULL;
    if (ok) {
       affinity = Affinity_new(pl);
@@ -76,15 +81,15 @@ Affinity* Affinity_get(Process* proc, ProcessList* pl) {
 
 bool Affinity_set(Process* proc, Affinity* this) {
    hwloc_cpuset_t cpuset = hwloc_bitmap_alloc();
-   for (int i = 0; i < affinity->used; i++) {
+   for (int i = 0; i < this->used; i++) {
-      hwloc_bitmap_set(cpuset, affinity->cpus[i]);
+      hwloc_bitmap_set(cpuset, this->cpus[i]);
    }
-   bool ok = (hwloc_linux_set_tid_cpubind(this->pl->topology, proc->pid, cpuset) == 0);
+   bool ok = (hwloc_set_proc_cpubind(this->pl->topology, proc->pid, cpuset, HTOP_HWLOC_CPUBIND_FLAG) == 0);
    hwloc_bitmap_free(cpuset);
    return ok;
 }
 
-#elif HAVE_NATIVE_AFFINITY
+#elif HAVE_LINUX_AFFINITY
 
 Affinity* Affinity_get(Process* proc, ProcessList* pl) {
    cpu_set_t cpuset;

Affinity.h

@@ -10,7 +10,12 @@ in the source distribution for its full text.
 */
 
 #ifdef HAVE_LIBHWLOC
-#elif HAVE_NATIVE_AFFINITY
+#if __linux__
+#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_THREAD
+#else
+#define HTOP_HWLOC_CPUBIND_FLAG HWLOC_CPUBIND_PROCESS
+#endif
+#elif HAVE_LINUX_AFFINITY
 #endif
 
 #include "Process.h"
@@ -36,7 +41,7 @@ Affinity* Affinity_get(Process* proc, ProcessList* pl);
 
 bool Affinity_set(Process* proc, Affinity* this);
 
-#elif HAVE_NATIVE_AFFINITY
+#elif HAVE_LINUX_AFFINITY
 
 Affinity* Affinity_get(Process* proc, ProcessList* pl);
 

AvailableMetersPanel.c

@@ -112,20 +112,22 @@ AvailableMetersPanel* AvailableMetersPanel_new(Settings* settings, Header* heade
    this->scr = scr;
 
    Panel_setHeader(super, "Available meters");
+   // 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];
-      if (type != &CPUMeter_class) {
+      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;
    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];
-         sprintf(buffer, "%s %d", type->uiName, i);
+         snprintf(buffer, 50, "%s %d", type->uiName, i);
          Panel_add(super, (Object*) ListItem_new(buffer, i));
       }
    } else {

BatteryMeter.c

@@ -32,7 +32,7 @@ int BatteryMeter_attributes[] = {
    BATTERY
 };
 
-static void BatteryMeter_setValues(Meter * this, char *buffer, int len) {
+static void BatteryMeter_updateValues(Meter * this, char *buffer, int len) {
    ACPresence isOnAC;
    double percent;
    
@@ -73,8 +73,9 @@ MeterClass BatteryMeter_class = {
       .extends = Class(Meter),
       .delete = Meter_delete
    },
-   .setValues = BatteryMeter_setValues,
+   .updateValues = BatteryMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
    .total = 100.0,
    .attributes = BatteryMeter_attributes,
    .name = "Battery",

CPUMeter.c

@@ -55,7 +55,7 @@ static void CPUMeter_init(Meter* this) {
       Meter_setCaption(this, "Avg");
 }
 
-static void CPUMeter_setValues(Meter* this, char* buffer, int size) {
+static void CPUMeter_updateValues(Meter* this, char* buffer, int size) {
    int cpu = this->param;
    if (cpu > this->pl->cpuCount) {
       snprintf(buffer, size, "absent");
@@ -215,7 +215,7 @@ MeterClass CPUMeter_class = {
       .delete = Meter_delete,
       .display = CPUMeter_display
    },
-   .setValues = CPUMeter_setValues, 
+   .updateValues = CPUMeter_updateValues,
    .defaultMode = BAR_METERMODE,
    .maxItems = CPU_METER_ITEMCOUNT,
    .total = 100.0,
@@ -312,8 +312,8 @@ MeterClass LeftCPUs2Meter_class = {
    .total = 100.0,
    .attributes = CPUMeter_attributes, 
    .name = "LeftCPUs2",
-   .description = "CPUs (1&2/4): first half in 2 shorter columns",
    .uiName = "CPUs (1&2/4)",
+   .description = "CPUs (1&2/4): first half in 2 shorter columns",
    .caption = "CPU",
    .draw = DualColCPUsMeter_draw,
    .init = AllCPUsMeter_init,

CRT.c

@@ -125,6 +125,8 @@ 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] = {
@@ -587,11 +589,17 @@ void CRT_init(int delay, int colorScheme) {
       define_key("\033[13~", KEY_F(3));
       define_key("\033[14~", KEY_F(4));
       define_key("\033[17;2~", KEY_F(18));
+      char sequence[3] = "\033a";
+      for (char c = 'a'; c <= 'z'; c++) {
+         sequence[1] = c;
+         define_key(sequence, KEY_ALT('A' + (c - 'a')));
+      }
    }
 #ifndef DEBUG
    signal(11, CRT_handleSIGSEGV);
 #endif
    signal(SIGTERM, CRT_handleSIGTERM);
+   signal(SIGQUIT, CRT_handleSIGTERM);
    use_default_colors();
    if (!has_colors())
       CRT_colorScheme = 1;
@@ -618,6 +626,7 @@ void CRT_init(int delay, int colorScheme) {
 #else
    mousemask(BUTTON1_RELEASED, NULL);
 #endif
+
 }
 
 void CRT_done() {

CRT.h

@@ -115,6 +115,8 @@ void CRT_fatalError(const char* note) __attribute__ ((noreturn));
 
 void CRT_handleSIGSEGV(int sgn);
 
+#define KEY_ALT(x) (KEY_F(64 - 26) + (x - 'A'))
+
 
 extern const char *CRT_treeStrAscii[TREE_STR_COUNT];
 

CategoriesPanel.c

@@ -82,9 +82,9 @@ static HandlerResult CategoriesPanel_eventHandler(Panel* super, int ch) {
          result = HANDLED;
          break;
       case KEY_UP:
-      case KEY_CTRLP:
+      case KEY_CTRL('P'):
       case KEY_DOWN:
-      case KEY_CTRLN:
+      case KEY_CTRL('N'):
       case KEY_NPAGE:
       case KEY_PPAGE:
       case KEY_HOME:

ChangeLog

@@ -1,4 +1,38 @@
 
+What's new in version 2.0.2
+
+* Mac OS X: stop trying when task_for_pid fails for a process,
+  stops spamming logs with errors.
+* Add Ctrl+A and Ctrl+E to go to beginning and end of line
+* FreeBSD: fixes for CPU calculation
+  (thanks to Tim Creech, Andy Pilate)
+* Usability: auto-follow process after a search.
+* Use Linux backend on GNU Hurd
+* Improvement for reproducible builds.
+* BUGFIX: Fix behavior of Alt-key combinations
+  (thanks to Kang-Che Sung)
+* Various code tweaks and cleanups
+  (thanks to Kang-Che Sung)
+
+What's new in version 2.0.1
+
+* OpenBSD: Various fixes and improvements
+  (thanks to Michael McConville and Juan Francisco Cantero Hurtado)
+* FreeBSD: fix CPU and memory readings
+  (thanks to Tim Creech, Hung-Yi Chen, Bernard Spil, Greg V)
+* FreeBSD: add battery support
+  (thanks to Greg V)
+* Linux: Retain last-obtained name of a zombie process
+* Mac OS X: Improve portability for OS X versions
+  (thanks to Michael Klein)
+* Mac OS X: Fix reading command-line arguments and basename
+* Mac OS X: Fix process state information
+* Mac OS X: Fix tree view collapsing/expanding
+* Mac OS X: Fix tree organization
+* Mac OS X: Fix memory accounting
+* Fix crash when emptying a column of meters
+* Make Esc key more responsive
+
 What's new in version 2.0.0
 
 * Platform abstraction layer

ClockMeter.c

@@ -19,7 +19,7 @@ int ClockMeter_attributes[] = {
    CLOCK
 };
 
-static void ClockMeter_setValues(Meter* this, char* buffer, int size) {
+static void ClockMeter_updateValues(Meter* this, char* buffer, int size) {
    time_t t = time(NULL);
    struct tm result;
    struct tm *lt = localtime_r(&t, &result);
@@ -32,8 +32,9 @@ MeterClass ClockMeter_class = {
       .extends = Class(Meter),
       .delete = Meter_delete
    },
-   .setValues = ClockMeter_setValues, 
+   .updateValues = ClockMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
    .total = 1440, /* 24*60 */
    .attributes = ClockMeter_attributes,
    .name = "Clock",

EnvScreen.c

@@ -49,9 +49,9 @@ void EnvScreen_scan(InfoScreen* this) {
    Panel_prune(panel);
 
    uid_t euid = geteuid();
-   seteuid(getuid());
+   (void) seteuid(getuid());
    char *env = Platform_getProcessEnv(this->process->pid);
-   seteuid(euid);
+   (void) seteuid(euid);
    if (env) {
       for (char *p = env; *p; p = strrchr(p, 0)+1)
          InfoScreen_addLine(this, p);

Header.c

@@ -37,7 +37,7 @@ typedef struct Header_ {
 #endif
 
 #ifndef Header_forEachColumn
-#define Header_forEachColumn(this_, i_) for (int i_=0; i_ < this->nrColumns; i_++)
+#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.h

@@ -28,7 +28,7 @@ typedef struct Header_ {
 #endif
 
 #ifndef Header_forEachColumn
-#define Header_forEachColumn(this_, i_) for (int i_=0; i_ < this->nrColumns; i_++)
+#define Header_forEachColumn(this_, i_) for (int (i_)=0; (i_) < (this_)->nrColumns; ++(i_))
 #endif
 
 Header* Header_new(struct ProcessList_* pl, Settings* settings, int nrColumns);

HostnameMeter.c

@@ -19,7 +19,7 @@ int HostnameMeter_attributes[] = {
    HOSTNAME
 };
 
-static void HostnameMeter_setValues(Meter* this, char* buffer, int size) {
+static void HostnameMeter_updateValues(Meter* this, char* buffer, int size) {
    (void) this;
    gethostname(buffer, size-1);
 }
@@ -29,8 +29,9 @@ MeterClass HostnameMeter_class = {
       .extends = Class(Meter),
       .delete = Meter_delete
    },
-   .setValues = HostnameMeter_setValues, 
+   .updateValues = HostnameMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 0,
    .total = 100.0,
    .attributes = HostnameMeter_attributes,
    .name = "Hostname",

INSTALL

@@ -1,13 +1,25 @@
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software
+Installation Instructions
-Foundation, Inc.
+*************************
 
-   This file is free documentation; the Free Software Foundation gives
+Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation,
-unlimited permission to copy, distribute and modify it.
+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
 ==================
 
-   These are generic installation instructions.
+   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
@@ -20,9 +32,9 @@ 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
+the results of its tests to speed up reconfiguring.  Caching is
 disabled by default to prevent problems with accidental use of stale
-cache files.)
+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
@@ -32,30 +44,37 @@ 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 only need
+`configure' by a program called `autoconf'.  You need `configure.ac' if
-`configure.ac' if you want to change it or regenerate `configure' using
+you want to change it or regenerate `configure' using a newer version
-a newer version of `autoconf'.
+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.  If you're
+     `./configure' to configure the package for your system.
-     using `csh' on an old version of System V, you might need to type
-     `sh ./configure' instead to prevent `csh' from trying to execute
-     `configure' itself.
 
-     Running `configure' takes awhile.  While running, it prints some
+     Running `configure' might take a while.  While running, it prints
-     messages telling which features it is checking for.
+     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.
+     the package, generally using the just-built uninstalled binaries.
 
   4. Type `make install' to install the programs and any data files and
-     documentation.
+     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. You can remove the program binaries and object files from the
+  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
@@ -64,6 +83,16 @@ The simplest way to compile this package is:
      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
 =====================
 
@@ -75,7 +104,7 @@ for details on some of the pertinent environment variables.
 by setting variables in the command line or in the environment.  Here
 is an example:
 
-     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
 
    *Note Defining Variables::, for more details.
 
@@ -84,44 +113,89 @@ 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 must use a version of `make' that
+own directory.  To do this, you can use GNU `make'.  `cd' to the
-supports the `VPATH' variable, such as 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 `..'.
+source code in the directory that `configure' is in and in `..'.  This
+is known as a "VPATH" build.
 
-   If you have to use a `make' that does not support the `VPATH'
+   With a non-GNU `make', it is safer to compile the package for one
-variable, you have to compile the package for one architecture at a
+architecture at a time in the source code directory.  After you have
-time in the source code directory.  After you have installed the
+installed the package for one architecture, use `make distclean' before
-package for one architecture, use `make distclean' before reconfiguring
+reconfiguring for another architecture.
-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' will install the package's files in
+   By default, `make install' installs the package's commands under
-`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+`/usr/local/bin', include files under `/usr/local/include', etc.  You
-installation prefix other than `/usr/local' by giving `configure' the
+can specify an installation prefix other than `/usr/local' by giving
-option `--prefix=PATH'.
+`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
-give `configure' the option `--exec-prefix=PATH', the package will use
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PATH as the prefix for installing programs and libraries.
+PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files will still use the regular prefix.
+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=PATH' to specify different values for particular
+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.
+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'.
 
-Optional Features
-=================
-
    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
@@ -134,6 +208,50 @@ 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
 ==========================
 
@@ -149,14 +267,15 @@ type, such as `sun4', or a canonical name which has the form:
 
 where SYSTEM can have one of these forms:
 
-     OS KERNEL-OS
+     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 `--target=TYPE' option to select the type of system they will
+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
@@ -186,9 +305,15 @@ them in the `configure' command line, using `VAR=value'.  For example:
 
      ./configure CC=/usr/local2/bin/gcc
 
-will cause the specified gcc to be used as the C compiler (unless it is
+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
 ======================
 
@@ -197,7 +322,14 @@ operates.
 
 `--help'
 `-h'
-     Print a summary of the options to `configure', and exit.
+     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'
@@ -224,6 +356,15 @@ operates.
      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

@@ -40,6 +40,7 @@ typedef struct IncSet_ {
    IncMode* active;
    FunctionBar* defaultBar;
    bool filtering;
+   bool found;
 } IncSet;
 
 typedef const char* (*IncMode_GetPanelValue)(Panel*, int);
@@ -114,7 +115,7 @@ static void updateWeakPanel(IncSet* this, Panel* panel, Vector* lines) {
    }
 }
 
-static void search(IncMode* mode, Panel* panel, IncMode_GetPanelValue getPanelValue) {
+static bool search(IncMode* mode, Panel* panel, IncMode_GetPanelValue getPanelValue) {
    int size = Panel_size(panel);
    bool found = false;
    for (int i = 0; i < size; i++) {
@@ -128,6 +129,7 @@ static void search(IncMode* mode, Panel* panel, IncMode_GetPanelValue getPanelVa
       FunctionBar_draw(mode->bar, mode->buffer);
    else
       FunctionBar_drawAttr(mode->bar, mode->buffer, CRT_colors[FAILED_SEARCH]);
+   return found;
 }
 
 bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue getPanelValue, Vector* lines) {
@@ -151,7 +153,8 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
          }
       }
       doSearch = false;
-   } else if (ch < 255 && isprint((char)ch) && (mode->index < INCMODE_MAX)) {
+   } else if (ch < 255 && isprint((char)ch)) {
+      if (mode->index < INCMODE_MAX) {
          mode->buffer[mode->index] = ch;
          mode->index++;
          mode->buffer[mode->index] = 0;
@@ -159,7 +162,9 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
             filterChanged = true;
             if (mode->index == 1) this->filtering = true;
          }
-   } else if ((ch == KEY_BACKSPACE || ch == 127) && (mode->index > 0)) {
+      }
+   } else if ((ch == KEY_BACKSPACE || ch == 127)) {
+      if (mode->index > 0) {
          mode->index--;
          mode->buffer[mode->index] = 0;
          if (mode->isFilter) {
@@ -169,6 +174,9 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
                IncMode_reset(mode);
             }
          }
+      } else {
+         doSearch = false;
+      }
    } else if (ch == KEY_RESIZE) {
      Panel_resize(panel, COLS, LINES-panel->y-1);
    } else {
@@ -187,7 +195,7 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
       doSearch = false;
    }
    if (doSearch) {
-      search(mode, panel, getPanelValue);
+      this->found = search(mode, panel, getPanelValue);
    }
    if (filterChanged && lines) {
       updateWeakPanel(this, panel, lines);

IncSet.h

@@ -35,6 +35,7 @@ typedef struct IncSet_ {
    IncMode* active;
    FunctionBar* defaultBar;
    bool filtering;
+   bool found;
 } IncSet;
 
 typedef const char* (*IncMode_GetPanelValue)(Panel*, int);

InfoScreen.c

@@ -83,6 +83,7 @@ void InfoScreen_drawTitled(InfoScreen* this, char* fmt, ...) {
    wmove(stdscr, 0, 0);
    vw_printw(stdscr, fmt, ap);
    attrset(CRT_colors[DEFAULT_COLOR]);
+   this->display->needsRedraw = true;
    Panel_draw(this->display, true);
    IncSet_drawBar(this->inc);
    va_end(ap);
@@ -116,6 +117,7 @@ void InfoScreen_run(InfoScreen* this) {
 
       if (this->inc->active)
          move(LINES-1, CRT_cursorX);
+      set_escdelay(25);
       int ch = getch();
       
       if (ch == ERR) {

LoadAverageMeter.c

@@ -20,7 +20,7 @@ int LoadAverageMeter_attributes[] = {
 
 int LoadMeter_attributes[] = { LOAD };
 
-static void LoadAverageMeter_setValues(Meter* this, char* buffer, int size) {
+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]);
 }
@@ -36,7 +36,7 @@ static void LoadAverageMeter_display(Object* cast, RichString* out) {
    RichString_append(out, CRT_colors[LOAD_AVERAGE_FIFTEEN], buffer);
 }
 
-static void LoadMeter_setValues(Meter* this, char* buffer, int size) {
+static void LoadMeter_updateValues(Meter* this, char* buffer, int size) {
    double five, fifteen;
    Platform_getLoadAverage(&this->values[0], &five, &fifteen);
    if (this->values[0] > this->total) {
@@ -58,7 +58,7 @@ MeterClass LoadAverageMeter_class = {
       .delete = Meter_delete,
       .display = LoadAverageMeter_display,
    },
-   .setValues = LoadAverageMeter_setValues, 
+   .updateValues = LoadAverageMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
    .maxItems = 3,
    .total = 100.0,
@@ -75,8 +75,9 @@ MeterClass LoadMeter_class = {
       .delete = Meter_delete,
       .display = LoadMeter_display,
    },
-   .setValues = LoadMeter_setValues, 
+   .updateValues = LoadMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
    .total = 100.0,
    .attributes = LoadMeter_attributes,
    .name = "Load",

MainPanel.c

@@ -83,6 +83,9 @@ 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;
@@ -102,20 +105,6 @@ static HandlerResult MainPanel_eventHandler(Panel* super, int ch) {
       } else {
          reaction |= HTOP_KEEP_FOLLOWING;
       }
-      switch (ch) {
-      case KEY_LEFT:
-      case KEY_CTRLB:
-         if (super->scrollH > 0) {
-            super->scrollH -= CRT_scrollHAmount;
-            super->needsRedraw = true;
-         }
-         return HANDLED;
-      case KEY_RIGHT:
-      case KEY_CTRLF:
-         super->scrollH += CRT_scrollHAmount;
-         super->needsRedraw = true;
-         return HANDLED;
-      }
    }
 
    if (reaction & HTOP_REDRAW_BAR) {
@@ -159,7 +148,7 @@ const char* MainPanel_getValue(MainPanel* this, int i) {
    return "";
 }
 
-bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, int arg, bool* wasAnyTagged) {
+bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, size_t arg, bool* wasAnyTagged) {
    Panel* super = (Panel*) this;
    bool ok = true;
    bool anyTagged = false;

MainPanel.h

@@ -34,7 +34,7 @@ int MainPanel_selectedPid(MainPanel* this);
 
 const char* MainPanel_getValue(MainPanel* this, int i);
 
-bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, int arg, bool* wasAnyTagged);
+bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, size_t arg, bool* wasAnyTagged);
 
 extern PanelClass MainPanel_class;
 

Makefile.am

@@ -95,7 +95,7 @@ debug:
 	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-ggdb -DDEBUG"
 
 coverage:
-	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-fprofile-arcs -ftest-coverage -DDEBUG" AM_LDFLAGS="-lgcov"
+	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-fprofile-arcs -ftest-coverage -DDEBUG" LDFLAGS="-lgcov"
 
 .c.h:
 	@srcdir@/scripts/MakeHeader.py $<

MemoryMeter.c

@@ -24,7 +24,7 @@ int MemoryMeter_attributes[] = {
    MEMORY_USED, MEMORY_BUFFERS, MEMORY_CACHE
 };
 
-static void MemoryMeter_setValues(Meter* this, char* buffer, int size) {
+static void MemoryMeter_updateValues(Meter* this, char* buffer, int size) {
    int written;
    Platform_setMemoryValues(this);
 
@@ -60,7 +60,7 @@ MeterClass MemoryMeter_class = {
       .delete = Meter_delete,
       .display = MemoryMeter_display,
    },
-   .setValues = MemoryMeter_setValues, 
+   .updateValues = MemoryMeter_updateValues, 
    .defaultMode = BAR_METERMODE,
    .maxItems = 3,
    .total = 100.0,

Meter.c

@@ -37,7 +37,7 @@ typedef struct Meter_ Meter;
 typedef void(*Meter_Init)(Meter*);
 typedef void(*Meter_Done)(Meter*);
 typedef void(*Meter_UpdateMode)(Meter*, int);
-typedef void(*Meter_SetValues)(Meter*, char*, int);
+typedef void(*Meter_UpdateValues)(Meter*, char*, int);
 typedef void(*Meter_Draw)(Meter*, int, int, int);
 
 typedef struct MeterClass_ {
@@ -46,7 +46,7 @@ typedef struct MeterClass_ {
    const Meter_Done done;
    const Meter_UpdateMode updateMode;
    const Meter_Draw draw;
-   const Meter_SetValues setValues;
+   const Meter_UpdateValues updateValues;
    const int defaultMode;
    const double total;
    const int* attributes;
@@ -66,7 +66,8 @@ typedef struct MeterClass_ {
 #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_setValues(this_, c_, i_) As_Meter(this_)->setValues((Meter*)(this_), c_, i_)
+#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_)
@@ -132,12 +133,8 @@ Meter* Meter_new(struct ProcessList_* pl, int param, MeterClass* type) {
    this->h = 1;
    this->param = param;
    this->pl = pl;
-   char maxItems = type->maxItems;
+   type->curItems = type->maxItems;
-   if (maxItems == 0) {
+   this->values = xCalloc(type->maxItems, sizeof(double));
-      maxItems = 1;
-   }
-   type->curItems = maxItems;
-   this->values = xCalloc(maxItems, sizeof(double));
    this->total = type->total;
    this->caption = xStrdup(type->caption);
    if (Meter_initFn(this))
@@ -184,7 +181,6 @@ void Meter_delete(Object* cast) {
    if (Meter_doneFn(this)) {
       Meter_done(this);
    }
-   if (this->drawData)
    free(this->drawData);
    free(this->caption);
    free(this->values);
@@ -216,7 +212,6 @@ void Meter_setMode(Meter* this, int modeIndex) {
          Meter_updateMode(this, modeIndex);
    } else {
       assert(modeIndex >= 1);
-      if (this->drawData)
       free(this->drawData);
       this->drawData = NULL;
 
@@ -249,7 +244,7 @@ ListItem* Meter_toListItem(Meter* this, bool moving) {
 
 static void TextMeterMode_draw(Meter* this, int x, int y, int w) {
    char buffer[METER_BUFFER_LEN];
-   Meter_setValues(this, buffer, METER_BUFFER_LEN - 1);
+   Meter_updateValues(this, buffer, METER_BUFFER_LEN - 1);
    (void) w;
 
    attrset(CRT_colors[METER_TEXT]);
@@ -269,7 +264,7 @@ static char BarMeterMode_characters[] = "|#*@$%&.";
 
 static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
    char buffer[METER_BUFFER_LEN];
-   Meter_setValues(this, buffer, METER_BUFFER_LEN - 1);
+   Meter_updateValues(this, buffer, METER_BUFFER_LEN - 1);
 
    w -= 2;
    attrset(CRT_colors[METER_TEXT]);
@@ -291,11 +286,8 @@ static void BarMeterMode_draw(Meter* this, int x, int y, int w) {
    char bar[w + 1];
    
    int blockSizes[10];
-   for (int i = 0; i < w; i++)
-      bar[i] = ' ';
 
-   const size_t barOffset = w - MIN((int)strlen(buffer), w);
+   snprintf(bar, w + 1, "%*s", w, buffer);
-   snprintf(bar + barOffset, w - barOffset + 1, "%s", buffer);
 
    // First draw in the bar[] buffer...
    int offset = 0;
@@ -397,7 +389,7 @@ static void GraphMeterMode_draw(Meter* this, int x, int y, int w) {
          data->values[i] = data->values[i+1];
    
       char buffer[nValues];
-      Meter_setValues(this, buffer, nValues - 1);
+      Meter_updateValues(this, buffer, nValues - 1);
    
       double value = 0.0;
       int items = Meter_getItems(this);
@@ -466,7 +458,7 @@ static void LEDMeterMode_draw(Meter* this, int x, int y, int w) {
       LEDMeterMode_digits = LEDMeterMode_digitsAscii;
 
    char buffer[METER_BUFFER_LEN];
-   Meter_setValues(this, buffer, METER_BUFFER_LEN - 1);
+   Meter_updateValues(this, buffer, METER_BUFFER_LEN - 1);
    
    RichString_begin(out);
    Meter_displayBuffer(this, buffer, &out);
@@ -529,7 +521,7 @@ MeterMode* Meter_modes[] = {
 
 /* Blank meter */
 
-static void BlankMeter_setValues(Meter* this, char* buffer, int size) {
+static void BlankMeter_updateValues(Meter* this, char* buffer, int size) {
    (void) this; (void) buffer; (void) size;
 }
 
@@ -548,8 +540,9 @@ MeterClass BlankMeter_class = {
       .delete = Meter_delete,
       .display = BlankMeter_display,
    },
-   .setValues = BlankMeter_setValues,
+   .updateValues = BlankMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 0,
    .total = 100.0,
    .attributes = BlankMeter_attributes,
    .name = "Blank",

Meter.h

@@ -24,7 +24,7 @@ typedef struct Meter_ Meter;
 typedef void(*Meter_Init)(Meter*);
 typedef void(*Meter_Done)(Meter*);
 typedef void(*Meter_UpdateMode)(Meter*, int);
-typedef void(*Meter_SetValues)(Meter*, char*, int);
+typedef void(*Meter_UpdateValues)(Meter*, char*, int);
 typedef void(*Meter_Draw)(Meter*, int, int, int);
 
 typedef struct MeterClass_ {
@@ -33,7 +33,7 @@ typedef struct MeterClass_ {
    const Meter_Done done;
    const Meter_UpdateMode updateMode;
    const Meter_Draw draw;
-   const Meter_SetValues setValues;
+   const Meter_UpdateValues updateValues;
    const int defaultMode;
    const double total;
    const int* attributes;
@@ -53,7 +53,8 @@ typedef struct MeterClass_ {
 #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_setValues(this_, c_, i_) As_Meter(this_)->setValues((Meter*)(this_), c_, i_)
+#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_)

MetersPanel.c

@@ -50,7 +50,10 @@ static void MetersPanel_delete(Object* object) {
 void MetersPanel_setMoving(MetersPanel* this, bool moving) {
    Panel* super = (Panel*) this;
    this->moving = moving;
-   ((ListItem*)Panel_getSelected(super))->moving = moving;
+   ListItem* selected = (ListItem*)Panel_getSelected(super);
+   if (selected) {
+      selected->moving = moving;
+   }
    if (!moving) {
       Panel_setSelectionColor(super, CRT_colors[PANEL_SELECTION_FOCUS]);
       Panel_setDefaultBar(super);
@@ -58,6 +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);
 }
 
 static inline bool moveToNeighbor(MetersPanel* this, MetersPanel* neighbor, int selected) {
@@ -96,7 +100,6 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
          if (!Vector_size(this->meters))
             break;
          MetersPanel_setMoving(this, !(this->moving));
-         FunctionBar_draw(this->super.currentBar, NULL);
          result = HANDLED;
          break;
       }

OpenFilesScreen.c

@@ -86,17 +86,12 @@ static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
       pdata->error = 127;
       return pdata;
    }
-   while (!feof(fd)) {
+   for (;;) {
-      int cmd = fgetc(fd);
+      char* line = String_readLine(fd);
-      if (cmd == EOF)
+      if (!line) {
-         break;
-      char* entry = xMalloc(1024);
-      if (!fgets(entry, 1024, fd)) {
-         free(entry);
          break;
       }
-      char* newline = strrchr(entry, '\n');
+      unsigned char cmd = line[0];
-      *newline = '\0';
       if (cmd == 'f') {
          OpenFiles_FileData* nextFile = xCalloc(1, sizeof(OpenFiles_FileData));
          if (fdata == NULL) {
@@ -108,7 +103,8 @@ static OpenFiles_ProcessData* OpenFilesScreen_getProcessData(pid_t pid) {
          item = &(fdata->data);
       }
       assert(cmd >= 0 && cmd <= 0xff);
-      item->data[cmd] = entry;
+      item->data[cmd] = xStrdup(line + 1);
+      free(line);
    }
    pdata->error = pclose(fd);
    return pdata;
@@ -132,9 +128,11 @@ void OpenFilesScreen_scan(InfoScreen* this) {
    } else {
       OpenFiles_FileData* fdata = pdata->files;
       while (fdata) {
-         char entry[1024];
          char** data = fdata->data.data;
-         sprintf(entry, "%5s %4s %10s %10s %10s %s",
+         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'] : "",

Panel.c

@@ -61,6 +61,7 @@ struct Panel_ {
    Vector* items;
    int selected;
    int oldSelected;
+   int selectedLen;
    void* eventHandlerState;
    int scrollV;
    short scrollH;
@@ -82,10 +83,7 @@ struct Panel_ {
 #define MAX(a,b) ((a)>(b)?(a):(b))
 #endif
 
-#define KEY_CTRLN      0016            /* control-n key */
+#define KEY_CTRL(l) ((l)-'A'+1)
-#define KEY_CTRLP      0020            /* control-p key */
-#define KEY_CTRLF      0006            /* control-f key */
-#define KEY_CTRLB      0002            /* control-b key */
 
 PanelClass Panel_class = {
    .super = {
@@ -327,6 +325,7 @@ void Panel_draw(Panel* this, bool focus) {
          if (selected) {
             attrset(selectionColor);
             RichString_setAttr(&item, selectionColor);
+            this->selectedLen = itemLen;
          }
          mvhline(y + line, x, ' ', this->w);
          if (amt > 0)
@@ -352,6 +351,7 @@ void Panel_draw(Panel* this, bool focus) {
       RichString_begin(new);
       Object_display(newObj, &new);
       int newLen = RichString_sizeVal(new);
+      this->selectedLen = newLen;
       mvhline(y+ this->oldSelected - first, x+0, ' ', this->w);
       if (scrollH < oldLen)
          RichString_printoffnVal(old, y+this->oldSelected - first, x,
@@ -376,11 +376,11 @@ bool Panel_onKey(Panel* this, int key) {
    int size = Vector_size(this->items);
    switch (key) {
    case KEY_DOWN:
-   case KEY_CTRLN:
+   case KEY_CTRL('N'):
       this->selected++;
       break;
    case KEY_UP:
-   case KEY_CTRLP:
+   case KEY_CTRL('P'):
       this->selected--;
       break;
    #ifdef KEY_C_DOWN
@@ -394,14 +394,14 @@ bool Panel_onKey(Panel* this, int key) {
       break;
    #endif
    case KEY_LEFT:
-   case KEY_CTRLB:
+   case KEY_CTRL('B'):
       if (this->scrollH > 0) {
-         this->scrollH -= CRT_scrollHAmount;
+         this->scrollH -= MAX(CRT_scrollHAmount, 0);
          this->needsRedraw = true;
       }
       break;
    case KEY_RIGHT:
-   case KEY_CTRLF:
+   case KEY_CTRL('F'):
       this->scrollH += CRT_scrollHAmount;
       this->needsRedraw = true;
       break;
@@ -412,7 +412,7 @@ bool Panel_onKey(Panel* this, int key) {
       break;
    case KEY_NPAGE:
       this->selected += (this->h - 1);
-      this->scrollV += (this->h - 1);
+      this->scrollV = MIN(MAX(0, Vector_size(this->items) - this->h), this->selected - this->h);
       this->needsRedraw = true;
       break;
    case KEY_WHEELUP:
@@ -436,12 +436,22 @@ bool Panel_onKey(Panel* this, int key) {
    case KEY_END:
       this->selected = size - 1;
       break;
+   case KEY_CTRL('A'):
+   case '^':
+      this->scrollH = 0;
+      this->needsRedraw = true;
+      break;
+   case KEY_CTRL('E'):
+   case '$':
+      this->scrollH = MAX(this->selectedLen - this->w, 0);
+      this->needsRedraw = true;
+      break;
    default:
       return false;
    }
 
    // ensure selection within bounds
-   if (this->selected < 0) {
+   if (this->selected < 0 || size == 0) {
       this->selected = 0;
       this->needsRedraw = true;
    } else if (this->selected >= size) {   

Panel.h

@@ -50,6 +50,7 @@ struct Panel_ {
    Vector* items;
    int selected;
    int oldSelected;
+   int selectedLen;
    void* eventHandlerState;
    int scrollV;
    short scrollH;
@@ -70,10 +71,7 @@ struct Panel_ {
 #define MAX(a,b) ((a)>(b)?(a):(b))
 #endif
 
-#define KEY_CTRLN      0016            /* control-n key */
+#define KEY_CTRL(l) ((l)-'A'+1)
-#define KEY_CTRLP      0020            /* control-p key */
-#define KEY_CTRLF      0006            /* control-f key */
-#define KEY_CTRLB      0002            /* control-b key */
 
 extern PanelClass Panel_class;
 

Process.c

@@ -48,6 +48,7 @@ in the source distribution for its full text.
 #define PROCESS_FLAG_IO 0x0001
 
 typedef enum ProcessFields {
+   NULL_PROCESSFIELD = 0,
    PID = 1,
    COMM = 2,
    STATE = 3,
@@ -193,7 +194,7 @@ void Process_setupColumnWidths() {
    assert(digits < 20);
    for (int i = 0; Process_pidColumns[i].label; i++) {
       assert(i < 20);
-      sprintf(Process_titleBuffer[i], "%*s ", digits, Process_pidColumns[i].label);
+      snprintf(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);
@@ -335,7 +336,10 @@ void Process_outputRate(RichString* str, char* buffer, int n, double rate, int c
       largeNumberColor = CRT_colors[PROCESS];
       processMegabytesColor = CRT_colors[PROCESS];
    }
-   if (rate < ONE_K) {
+   if (rate == -1) {
+      int len = snprintf(buffer, n, "    no perm ");
+      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) {
@@ -391,7 +395,7 @@ void Process_writeField(Process* this, RichString* str, ProcessField field) {
          int indent = (this->indent < 0 ? -this->indent : this->indent);
 
          for (int i = 0; i < 32; i++)
-            if (indent & (1 << i))
+            if (indent & (1U << i))
                maxIndent = i+1;
           for (int i = 0; i < maxIndent - 1; i++) {
             int written;
@@ -515,10 +519,10 @@ void Process_toggleTag(Process* this) {
 
 bool Process_setPriority(Process* this, int priority) {
    uid_t euid = geteuid();
-   seteuid(getuid());
+   (void) seteuid(getuid());
    int old_prio = getpriority(PRIO_PROCESS, this->pid);
    int err = setpriority(PRIO_PROCESS, this->pid, priority);
-   seteuid(euid);
+   (void) seteuid(euid);
    if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
       this->nice = priority;
    }
@@ -531,9 +535,9 @@ bool Process_changePriorityBy(Process* this, size_t delta) {
 
 void Process_sendSignal(Process* this, size_t sgn) {
    uid_t euid = geteuid();
-   seteuid(getuid());
+   (void) seteuid(getuid());
    kill(this->pid, (int) sgn);
-   seteuid(euid);
+   (void) seteuid(euid);
 }
 
 long Process_pidCompare(const void* v1, const void* v2) {

Process.h

@@ -28,6 +28,7 @@ in the source distribution for its full text.
 #define PROCESS_FLAG_IO 0x0001
 
 typedef enum ProcessFields {
+   NULL_PROCESSFIELD = 0,
    PID = 1,
    COMM = 2,
    STATE = 3,

ProcessList.c

@@ -22,6 +22,10 @@ in the source distribution for its full text.
 #include "Process.h"
 #include "Settings.h"
 
+#ifdef HAVE_LIBHWLOC
+#include <hwloc.h>
+#endif
+
 #ifndef MAX_NAME
 #define MAX_NAME 128
 #endif
@@ -104,6 +108,11 @@ ProcessList* ProcessList_init(ProcessList* this, ObjectClass* klass, UsersTable*
 }
 
 void ProcessList_done(ProcessList* this) {
+#ifdef HAVE_LIBHWLOC
+   if (this->topologyOk) {
+      hwloc_topology_destroy(this->topology);
+   }
+#endif
    Hashtable_delete(this->processTable);
    Vector_delete(this->processes);
    Vector_delete(this->processes2);
@@ -307,6 +316,7 @@ void ProcessList_scan(ProcessList* this) {
    for (int i = 0; i < Vector_size(this->processes); i++) {
       Process* p = (Process*) Vector_get(this->processes, i);
       p->updated = false;
+      p->show = true;
    }
 
    this->totalTasks = 0;

ProcessList.h

@@ -16,6 +16,10 @@ in the source distribution for its full text.
 #include "Process.h"
 #include "Settings.h"
 
+#ifdef HAVE_LIBHWLOC
+#include <hwloc.h>
+#endif
+
 #ifndef MAX_NAME
 #define MAX_NAME 128
 #endif

README

@@ -1,50 +1,61 @@
-htop
+[![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](http://hisham.hm/htop/)
 ====
 
-by Hisham Muhammad <hisham@gobolinux.org>
+by Hisham Muhammad <hisham@gobolinux.org> (2004 - 2016)
-
-2004 - 2015
 
 Introduction
 ------------
 
-This is htop, an interactive process viewer.
+This is `htop`, an interactive process viewer.
-It requires ncurses. It is developed primarily on Linux,
+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!)
 
 This software has evolved considerably over the years,
 and is reasonably complete, but there is always room for improvement.
 
-Comparison between 'htop' and classic 'top'
+Comparison between `htop` and classic `top`
 -------------------------------------------
 
-* In 'htop' you can scroll the list vertically and horizontally
+* 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
+* 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
+* `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
+* In `htop` you don't need to type the process number to
-  kill a process, in 'top' you do.
+  kill a process, in `top` you do.
-* In 'htop' you don't need to type the process number or
+* In `htop` you don't need to type the process number or
-  the priority value to renice a process, in 'top' you do.
+  the priority value to renice a process, in `top` you do.
-* In 'htop' you can kill multiple processes at once.
+* In `htop` you can kill multiple processes at once.
-* 'top' is older, hence, more tested.
+* `top` is older, hence, more tested.
 
 Compilation instructions
 ------------------------
 
 This program is distributed as a standard autotools-based package.
-See the INSTALL file for detailed instructions, but you are
+See the [INSTALL](/INSTALL) file for detailed instructions.
-probably used to the common `./configure`/`make`/`make install` routine.
 
-When fetching the code from the development repository, you need
+When compiling from a release tarball, run:
-to run the `./autogen.sh` script, which in turn requires autotools
-to be installed.
 
-See the manual page (man htop) or the on-line help ('F1' or 'h'
+    ./configure && make
-inside htop) for a list of supported key commands.
 
-if not all keys work check your curses configuration.
+For compiling sources downloaded from the Git repository, run:
+
+    ./autogen.sh && ./configure && make
+
+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.
+
+If not all keys work check your curses configuration.
+
+## License
+
+GNU General Public License, version 2 (GPL-2.0)

ScreenManager.c

@@ -189,6 +189,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
       }
 
       int prevCh = ch;
+      set_escdelay(25);
       ch = getch();
 
       HandlerResult result = IGNORED;
@@ -244,28 +245,11 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
          redraw = false;
          continue;
       }
-      else if (ch == 27) {
+      switch (ch) {
-         int ch2 = getch();
+         case KEY_ALT('H'): ch = KEY_LEFT; break;
-         if (ch2 != ERR) {
+         case KEY_ALT('J'): ch = KEY_DOWN; break;
-            switch(ch2)
+         case KEY_ALT('K'): ch = KEY_UP; break;
-            {
+         case KEY_ALT('L'): ch = KEY_RIGHT; break;
-            case 'h':
-               ch = KEY_LEFT;
-               break;
-            case 'j':
-               ch = KEY_DOWN;
-               break;
-            case 'k':
-               ch = KEY_UP;
-               break;
-            case 'l':
-               ch = KEY_RIGHT;
-               break;
-            default:
-               ungetch(ch2);
-               break;
-            }
-         }
       }
       redraw = true;
       if (Panel_eventHandlerFn(panelFocus)) {
@@ -295,7 +279,10 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
          continue;
       }
       case KEY_LEFT:
-      case KEY_CTRLB:
+      case KEY_CTRL('B'):
+         if (this->panelCount < 2) {
+            goto defaultHandler;
+         }
          if (!this->allowFocusChange)
             break;
          tryLeft:
@@ -306,8 +293,11 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
             goto tryLeft;
          break;
       case KEY_RIGHT:
-      case KEY_CTRLF:
+      case KEY_CTRL('F'):
       case 9:
+         if (this->panelCount < 2) {
+            goto defaultHandler;
+         }
          if (!this->allowFocusChange)
             break;
          tryRight:
@@ -323,6 +313,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
          quit = true;
          continue;
       default:
+         defaultHandler:
          sortTimeout = resetSortTimeout;
          Panel_onKey(panelFocus, ch);
          break;

Settings.c

@@ -159,7 +159,7 @@ static void readFields(ProcessField* fields, int* flags, const char* line) {
          j++;
       }
    }
-   fields[j] = (ProcessField) NULL;
+   fields[j] = NULL_PROCESSFIELD;
    String_freeArray(ids);
 }
 
@@ -167,18 +167,21 @@ static bool Settings_read(Settings* this, const char* fileName) {
    FILE* fd;
    uid_t euid = geteuid();
 
-   seteuid(getuid());
+   (void) seteuid(getuid());
    fd = fopen(fileName, "r");
-   seteuid(euid);
+   (void) seteuid(euid);
    if (!fd)
       return false;
    
-   const int maxLine = 2048;
-   char buffer[maxLine];
    bool readMeters = false;
-   while (fgets(buffer, maxLine, fd)) {
+   for (;;) {
+      char* line = String_readLine(fd);
+      if (!line) {
+         break;
+      }
       int nOptions;
-      char** option = String_split(buffer, '=', &nOptions);
+      char** option = String_split(line, '=', &nOptions);
+      free (line);
       if (nOptions < 2) {
          String_freeArray(option);
          continue;
@@ -277,9 +280,9 @@ bool Settings_write(Settings* this) {
    FILE* fd;
    uid_t euid = geteuid();
 
-   seteuid(getuid());
+   (void) seteuid(getuid());
    fd = fopen(this->filename, "w");
-   seteuid(euid);
+   (void) seteuid(euid);
    if (fd == NULL) {
       return false;
    }
@@ -366,7 +369,7 @@ Settings* Settings_new(int cpuCount) {
       }
       legacyDotfile = String_cat(home, "/.htoprc");
       uid_t euid = geteuid();
-      seteuid(getuid());
+      (void) seteuid(getuid());
       (void) mkdir(configDir, 0700);
       (void) mkdir(htopDir, 0700);
       free(htopDir);
@@ -379,7 +382,7 @@ Settings* Settings_new(int cpuCount) {
          free(legacyDotfile);
          legacyDotfile = NULL;
       }
-      seteuid(euid);
+      (void) seteuid(euid);
    }
    this->colorScheme = 0;
    this->changed = false;

StringUtils.c

@@ -13,9 +13,10 @@ in the source distribution for its full text.
 #include <string.h>
 #include <strings.h>
 #include <stdlib.h>
-#include <stdio.h>
 
 /*{
+#include <stdio.h>
+
 #define String_startsWith(s, match) (strstr((s), (match)) == (s))
 #define String_contains_i(s1, s2) (strcasestr(s1, s2) != NULL)
 }*/
@@ -69,13 +70,7 @@ char** String_split(const char* s, char sep, int* n) {
       ctr++;
       if (ctr == blocks) {
          blocks += rate;
-         char** newOut = (char**) xRealloc(out, sizeof(char*) * blocks);
+         out = (char**) xRealloc(out, sizeof(char*) * blocks);
-         if (newOut) {
-            out = newOut;
-         } else {
-            blocks -= rate;
-            break;
-         }
       }
       s += size + 1;
    }
@@ -86,10 +81,7 @@ char** String_split(const char* s, char sep, int* n) {
       out[ctr] = token;
       ctr++;
    }
-   char** newOut = xRealloc(out, sizeof(char*) * (ctr + 1));
+   out = xRealloc(out, sizeof(char*) * (ctr + 1));
-   if (newOut) {
-      out = newOut;
-   }
    out[ctr] = NULL;
    *n = ctr;
    return out;
@@ -128,3 +120,29 @@ char* String_getToken(const char* line, const unsigned short int numMatch) {
    match[foundCount] = '\0';
    return((char*)xStrdup(match));
 }
+
+char* String_readLine(FILE* fd) {
+   const int step = 1024;
+   int bufSize = step;
+   char* buffer = xMalloc(step + 1);
+   char* at = buffer;
+   for (;;) {
+      char* ok = fgets(at, step + 1, fd);
+      if (!ok) {
+         free(buffer);
+         return NULL;
+      }
+      char* newLine = strrchr(at, '\n');
+      if (newLine) {
+         *newLine = '\0';
+         return buffer;
+      } else {
+         if (feof(fd)) {
+            return buffer;
+         }
+      }
+      bufSize += step;
+      buffer = xRealloc(buffer, bufSize + 1);
+      at = buffer + bufSize - step;
+   }
+}

StringUtils.h

@@ -9,6 +9,8 @@ Released under the GNU GPL, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include <stdio.h>
+
 #define String_startsWith(s, match) (strstr((s), (match)) == (s))
 #define String_contains_i(s1, s2) (strcasestr(s1, s2) != NULL)
 
@@ -24,4 +26,6 @@ void String_freeArray(char** s);
 
 char* String_getToken(const char* line, const unsigned short int numMatch);
 
+char* String_readLine(FILE* fd);
+
 #endif

SwapMeter.c

@@ -24,7 +24,7 @@ int SwapMeter_attributes[] = {
    SWAP
 };
 
-static void SwapMeter_setValues(Meter* this, char* buffer, int size) {
+static void SwapMeter_updateValues(Meter* this, char* buffer, int size) {
    int written;
    Platform_setSwapValues(this);
 
@@ -54,8 +54,9 @@ MeterClass SwapMeter_class = {
       .delete = Meter_delete,
       .display = SwapMeter_display,
    },
-   .setValues = SwapMeter_setValues, 
+   .updateValues = SwapMeter_updateValues,
    .defaultMode = BAR_METERMODE,
+   .maxItems = 1,
    .total = 100.0,
    .attributes = SwapMeter_attributes,
    .name = "Swap",

TasksMeter.c

@@ -18,7 +18,7 @@ int TasksMeter_attributes[] = {
    CPU_KERNEL, PROCESS_THREAD, PROCESS, TASKS_RUNNING
 };
 
-static void TasksMeter_setValues(Meter* this, char* buffer, int len) {
+static void TasksMeter_updateValues(Meter* this, char* buffer, int len) {
    ProcessList* pl = this->pl;
    this->values[0] = pl->kernelThreads;
    this->values[1] = pl->userlandThreads;
@@ -72,10 +72,10 @@ MeterClass TasksMeter_class = {
       .delete = Meter_delete,
       .display = TasksMeter_display,
    },
-   .setValues = TasksMeter_setValues, 
+   .updateValues = TasksMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
-   .total = 100.0,
    .maxItems = 4,
+   .total = 100.0,
    .attributes = TasksMeter_attributes, 
    .name = "Tasks",
    .uiName = "Task counter",

TraceScreen.c

@@ -95,7 +95,7 @@ bool TraceScreen_forkTracer(TraceScreen* this) {
    this->child = fork();
    if (this->child == -1) return false;
    if (this->child == 0) {
-      seteuid(getuid());
+      (void) seteuid(getuid());
       dup2(this->fdpair[1], STDERR_FILENO);
       int ok = fcntl(this->fdpair[1], F_SETFL, O_NONBLOCK);
       if (ok != -1) {

UptimeMeter.c

@@ -17,7 +17,7 @@ int UptimeMeter_attributes[] = {
    UPTIME
 };
 
-static void UptimeMeter_setValues(Meter* this, char* buffer, int len) {
+static void UptimeMeter_updateValues(Meter* this, char* buffer, int len) {
    int totalseconds = Platform_getUptime();
    if (totalseconds == -1) {
       snprintf(buffer, len, "(unknown)");
@@ -49,8 +49,9 @@ MeterClass UptimeMeter_class = {
       .extends = Class(Meter),
       .delete = Meter_delete
    },
-   .setValues = UptimeMeter_setValues, 
+   .updateValues = UptimeMeter_updateValues,
    .defaultMode = TEXT_METERMODE,
+   .maxItems = 1,
    .total = 100.0,
    .attributes = UptimeMeter_attributes,
    .name = "Uptime",

XAlloc.c

@@ -10,6 +10,7 @@
 #include <string.h>
 
 /*{
+#include <assert.h>
 #include <stdlib.h>
 }*/
 
@@ -29,7 +30,7 @@ void* xMalloc(size_t size) {
 
 void* xCalloc(size_t nmemb, size_t size) {
    void* data = calloc(nmemb, size);
-   if (!data) {
+   if (!data && nmemb > 0 && size > 0) {
       fail();
    }
    return data;
@@ -43,9 +44,25 @@ void* xRealloc(void* ptr, size_t size) {
    return data;
 }
 
-char* xStrdup(const char* str) {
+#undef xStrdup
+#undef xStrdup_
+#ifdef NDEBUG
+# define xStrdup_ xStrdup
+#else
+# define xStrdup(str_) (assert(str_), xStrdup_(str_))
+#endif
+
+#ifndef __has_attribute // Clang's macro
+# define __has_attribute(x) 0
+#endif
+#if (__has_attribute(nonnull) || \
+    ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)))
+char* xStrdup_(const char* str) __attribute__((nonnull));
+#endif // __has_attribute(nonnull) || GNU C 3.3 or later
+
+char* xStrdup_(const char* str) {
    char* data = strdup(str);
-   if (!data && str) {
+   if (!data) {
       fail();
    }
    return data;

XAlloc.h

@@ -7,6 +7,7 @@
 #define _GNU_SOURCE
 #endif
 
+#include <assert.h>
 #include <stdlib.h>
 
 void* xMalloc(size_t size);
@@ -15,6 +16,22 @@ void* xCalloc(size_t nmemb, size_t size);
 
 void* xRealloc(void* ptr, size_t size);
 
-char* xStrdup(const char* str);
+#undef xStrdup
+#undef xStrdup_
+#ifdef NDEBUG
+# define xStrdup_ xStrdup
+#else
+# define xStrdup(str_) (assert(str_), xStrdup_(str_))
+#endif
+
+#ifndef __has_attribute // Clang's macro
+# define __has_attribute(x) 0
+#endif
+#if (__has_attribute(nonnull) || \
+    ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)))
+char* xStrdup_(const char* str) __attribute__((nonnull));
+#endif // __has_attribute(nonnull) || GNU C 3.3 or later
+
+char* xStrdup_(const char* str);
 
 #endif

autogen.sh

@@ -1,15 +1,3 @@
 #!/bin/sh
-
-glibtoolize=$(which glibtoolize 2> /dev/null)
-if [ ${#glibtoolize} -gt 0 ]
-then libtoolize=glibtoolize
-else libtoolize=libtoolize
-fi
-
 mkdir -p m4
-aclocal -I m4
+autoreconf --install --force
-autoconf
-autoheader
-$libtoolize --copy --force
-automake --add-missing --copy
-

configure.ac

@@ -2,41 +2,45 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.65)
-AC_INIT([htop],[2.0.0],[hisham@gobolinux.org])
+LT_PREREQ([2.4.2])
+AC_INIT([htop],[2.0.2],[hisham@gobolinux.org])
 
-year=$(date +%Y)
+SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH:-$(date +%s)}"
+year=$(date -u -d "@$SOURCE_DATE_EPOCH" "+%Y" 2>/dev/null || date -u -r "$SOURCE_DATE_EPOCH" "+%Y" 2>/dev/null || date -u "+%Y")
 
-# The following two lines are required by hwloc scripts
+AC_CONFIG_SRCDIR([htop.c])
-AC_USE_SYSTEM_EXTENSIONS
+AC_CONFIG_AUX_DIR([.])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIR([m4])
+
+# Required by hwloc scripts
 AC_CANONICAL_TARGET
 
 AM_INIT_AUTOMAKE([1.11])
-AC_CONFIG_SRCDIR([htop.c])
-AC_CONFIG_HEADER([config.h])
-AC_CONFIG_MACRO_DIR([m4])
 
 # Checks for programs.
 # ----------------------------------------------------------------------
 AC_PROG_CC
 AM_PROG_CC_C_O
 
-AC_DISABLE_SHARED
+# Required by hwloc scripts
-AC_ENABLE_STATIC
+AC_USE_SYSTEM_EXTENSIONS
-AC_PROG_LIBTOOL
+
+LT_INIT([disable-shared static])
 
 # Checks for platform.
 # ----------------------------------------------------------------------
-case "$target" in
+case "$target_os" in
-*linux*)
+linux*|gnu*)
    my_htop_platform=linux
    ;;
-*freebsd*)
+freebsd*|kfreebsd*)
    my_htop_platform=freebsd
    ;;
-*openbsd*)
+openbsd*)
    my_htop_platform=openbsd
    ;;
-*darwin*)
+darwin*)
    my_htop_platform=darwin
    ;;
 *)
@@ -74,15 +78,16 @@ AC_CHECK_FUNCS([memmove strncasecmp strstr strdup])
 save_cflags="${CFLAGS}"
 CFLAGS="${CFLAGS} -std=c99"
 AC_MSG_CHECKING([whether gcc -std=c99 option works])
-AC_TRY_COMPILE(AC_INCLUDES_DEFAULT, [char *a; a = strdup("foo"); int i = 0; i++; // C99],
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-   AC_MSG_RESULT([yes]),
+   [AC_INCLUDES_DEFAULT], [[char *a; a = strdup("foo"); int i = 0; i++; // C99]])],
-   AC_MSG_ERROR([htop is written in C99. A newer version of gcc is required.]))
+   [AC_MSG_RESULT([yes])],
+   [AC_MSG_ERROR([htop is written in C99. A newer version of gcc is required.])])
 CFLAGS="$save_cflags"
 
 save_cflags="${CFLAGS}"
 CFLAGS="$CFLAGS -Wextra"
 AC_MSG_CHECKING([if compiler supports -Wextra])
-AC_TRY_COMPILE([], [], [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],[
    wextra_flag=-Wextra
    AC_MSG_RESULT([yes])
 ],[
@@ -96,14 +101,14 @@ AC_SUBST(wextra_flag)
 # ----------------------------------------------------------------------
 PROCDIR=/proc
 
-AC_ARG_ENABLE(proc, [AC_HELP_STRING([--enable-proc], [use Linux-compatible proc filesystem])], enable_proc="yes", enable_proc="no")
+AC_ARG_ENABLE(proc, [AS_HELP_STRING([--enable-proc], [use Linux-compatible proc filesystem])], enable_proc="yes", enable_proc="no")
 if test "x$enable_proc" = xyes; then
    # An enabled proc assumes we're emulating Linux.
    my_htop_platform=linux
    AC_DEFINE(HAVE_PROC, 1, [Define if using a Linux-compatible proc filesystem.])
 fi
 
-AC_ARG_WITH(proc, [AC_HELP_STRING([--with-proc=DIR], [Location of a Linux-compatible proc filesystem (default=/proc).])],
+AC_ARG_WITH(proc, [AS_HELP_STRING([--with-proc=DIR], [Location of a Linux-compatible proc filesystem (default=/proc).])],
 
 if test -n "$withval"; then
    AC_DEFINE_UNQUOTED(PROCDIR, "$withval", [Path of proc filesystem])
@@ -118,28 +123,28 @@ if test "x$cross_compiling" = xno; then
    fi
 fi
 
-AC_ARG_ENABLE(openvz, [AC_HELP_STRING([--enable-openvz], [enable OpenVZ support])], ,enable_openvz="no")
+AC_ARG_ENABLE(openvz, [AS_HELP_STRING([--enable-openvz], [enable OpenVZ support])], ,enable_openvz="no")
 if test "x$enable_openvz" = xyes; then
    AC_DEFINE(HAVE_OPENVZ, 1, [Define if openvz support enabled.])
 fi
 
-AC_ARG_ENABLE(cgroup, [AC_HELP_STRING([--enable-cgroup], [enable cgroups support])], ,enable_cgroup="no")
+AC_ARG_ENABLE(cgroup, [AS_HELP_STRING([--enable-cgroup], [enable cgroups support])], ,enable_cgroup="no")
 if test "x$enable_cgroup" = xyes; then
    AC_DEFINE(HAVE_CGROUP, 1, [Define if cgroup support enabled.])
 fi
 
-AC_ARG_ENABLE(vserver, [AC_HELP_STRING([--enable-vserver], [enable VServer support])], ,enable_vserver="no")
+AC_ARG_ENABLE(vserver, [AS_HELP_STRING([--enable-vserver], [enable VServer support])], ,enable_vserver="no")
 if test "x$enable_vserver" = xyes; then
     AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
 fi
 
-AC_ARG_ENABLE(ancient_vserver, [AC_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
+AC_ARG_ENABLE(ancient_vserver, [AS_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
 if test "x$enable_ancient_vserver" = xyes; then
     AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
     AC_DEFINE(HAVE_ANCIENT_VSERVER, 1, [Define if ancient vserver support enabled.])
 fi
 
-AC_ARG_ENABLE(taskstats, [AC_HELP_STRING([--enable-taskstats], [enable per-task IO Stats (taskstats kernel sup required)])], ,enable_taskstats="yes")
+AC_ARG_ENABLE(taskstats, [AS_HELP_STRING([--enable-taskstats], [enable per-task IO Stats (taskstats kernel sup required)])], ,enable_taskstats="yes")
 if test "x$enable_taskstats" = xyes; then
     AC_DEFINE(HAVE_TASKSTATS, 1, [Define if taskstats support enabled.])
 fi
@@ -147,7 +152,12 @@ fi
 # HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
 m4_define([HTOP_CHECK_SCRIPT],
 [
+   if test ! -z "m4_toupper($HTOP_[$1]_CONFIG_SCRIPT)"; then
+      # to be used to set the path to ncurses*-config when cross-compiling
+      htop_config_script=$(m4_toupper($HTOP_[$1]_CONFIG_SCRIPT) --libs 2> /dev/null)
+   else
       htop_config_script=$([$4] --libs 2> /dev/null)
+   fi
    htop_script_success=no
    htop_save_LDFLAGS="$LDFLAGS"
    if test ! "x$htop_config_script" = x; then
@@ -173,7 +183,7 @@ m4_define([HTOP_CHECK_LIB],
    ], [$4])
 ])
 
-AC_ARG_ENABLE(unicode, [AC_HELP_STRING([--enable-unicode], [enable Unicode support])], ,enable_unicode="yes")
+AC_ARG_ENABLE(unicode, [AS_HELP_STRING([--enable-unicode], [enable Unicode support])], ,enable_unicode="yes")
 if test "x$enable_unicode" = xyes; then
    HTOP_CHECK_SCRIPT([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
     HTOP_CHECK_SCRIPT([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw5-config",
@@ -211,8 +221,8 @@ if test "$my_htop_platform" = "openbsd"; then
    AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
 fi
 
-AC_ARG_ENABLE(native_affinity, [AC_HELP_STRING([--enable-native-affinity], [enable native sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_native_affinity="yes")
+AC_ARG_ENABLE(linux_affinity, [AS_HELP_STRING([--enable-linux-affinity], [enable Linux sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_linux_affinity="yes")
-if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
+if test "x$enable_linux_affinity" = xyes -a "x$cross_compiling" = xno; then
    AC_MSG_CHECKING([for usable sched_setaffinity])
    AC_RUN_IFELSE([
      AC_LANG_PROGRAM([[
@@ -225,17 +235,17 @@ if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
        if (errno == ENOSYS) return 1;
        ]])],
      [AC_MSG_RESULT([yes])],
-     [enable_native_affinity=no
+     [enable_linux_affinity=no
       AC_MSG_RESULT([no])])
 fi
-if test "x$enable_native_affinity" = xyes; then
+if test "x$enable_linux_affinity" = xyes; then
-   AC_DEFINE(HAVE_NATIVE_AFFINITY, 1, [Define if native sched_setaffinity and sched_getaffinity are to be used.])
+   AC_DEFINE(HAVE_LINUX_AFFINITY, 1, [Define if Linux sched_setaffinity and sched_getaffinity are to be used.])
 fi
 
-AC_ARG_ENABLE(hwloc, [AC_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity])],, enable_hwloc="no")
+AC_ARG_ENABLE(hwloc, [AS_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity])],, enable_hwloc="no")
 if test "x$enable_hwloc" = xyes
 then
-   AC_CHECK_LIB([hwloc], [hwloc_linux_get_tid_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
+   AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
    AC_CHECK_HEADERS([hwloc.h],[:], [missing_headers="$missing_headers $ac_header"])
 fi
 

darwin/DarwinProcess.c

@@ -13,6 +13,8 @@ in the source distribution for its full text.
 #include <string.h>
 #include <stdio.h>
 
+#include <mach/mach.h>
+
 /*{
 #include "Settings.h"
 #include "DarwinProcessList.h"
@@ -24,6 +26,7 @@ typedef struct DarwinProcess_ {
 
    uint64_t utime;
    uint64_t stime;
+   bool taskAccess;
 } DarwinProcess;
 
 }*/
@@ -45,6 +48,7 @@ DarwinProcess* DarwinProcess_new(Settings* settings) {
 
    this->utime = 0;
    this->stime = 0;
+   this->taskAccess = true;
 
    return this;
 }
@@ -69,7 +73,7 @@ void DarwinProcess_setStartTime(Process *proc, struct extern_proc *ep, time_t no
    strftime(proc->starttime_show, 7, ((proc->starttime_ctime > now - 86400) ? "%R " : "%b%d "), &date);
 }
 
-char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int show_args ) {
+char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int* basenameOffset) {
    /* This function is from the old Mac version of htop. Originally from ps? */
    int mib[3], argmax, nargs, c = 0;
    size_t size;
@@ -167,13 +171,7 @@ char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int show_args ) {
    /* Save where the argv[0] string starts. */
    sp = cp;
 
-   /*
+   *basenameOffset = 0;
-    * Iterate through the '\0'-terminated strings and convert '\0' to ' '
-    * until a string is found that has a '=' character in it (or there are
-    * no more strings in procargs).  There is no way to deterministically
-    * know where the command arguments end and the environment strings
-    * start, which is why the '=' character is searched for as a heuristic.
-    */
    for ( np = NULL; c < nargs && cp < &procargs[size]; cp++ ) {
       if ( *cp == '\0' ) {
          c++;
@@ -183,49 +181,11 @@ char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int show_args ) {
          }
         /* Note location of current '\0'. */
         np = cp;
-
+        if (*basenameOffset == 0) {
-        if ( !show_args ) {
+           *basenameOffset = cp - sp;
-           /*
-            * Don't convert '\0' characters to ' '.
-            * However, we needed to know that the
-            * command name was terminated, which we
-            * now know.
-            */
-           break;
         }
      }
    }
-#if 0
-   /*
-    * If eflg is non-zero, continue converting '\0' characters to ' '
-    * characters until no more strings that look like environment settings
-    * follow.
-    */
-   if ( ( eflg != 0 )
-         && ( ( getuid(  ) == 0 )
-              || ( k->kp_eproc.e_pcred.p_ruid == getuid(  ) ) ) ) {
-      for ( ; cp < &procargs[size]; cp++ ) {
-         if ( *cp == '\0' ) {
-            if ( np != NULL ) {
-               if ( &np[1] == cp ) {
-                  /*
-                   * Two '\0' characters in a row.
-                   * This should normally only
-                   * happen after all the strings
-                   * have been seen, but in any
-                   * case, stop parsing.
-                   */
-                  break;
-               }
-               /* Convert previous '\0'. */
-               *np = ' ';
-            }
-            /* Note location of current '\0'. */
-            np = cp;
-         }
-      }
-   }
-#endif
 
    /*
     * sp points to the beginning of the arguments/environment string, and
@@ -235,6 +195,9 @@ char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int show_args ) {
       /* Empty or unterminated string. */
       goto ERROR_B;
    }
+   if (*basenameOffset == 0) {
+      *basenameOffset = np - sp;
+   }
 
    /* Make a copy of the string. */
    retval = xStrdup(sp);
@@ -248,6 +211,7 @@ ERROR_B:
    free( procargs );
 ERROR_A:
    retval = xStrdup(k->kp_proc.p_comm);
+   *basenameOffset = strlen(retval);
    
    return retval;
 }
@@ -275,35 +239,22 @@ void DarwinProcess_setFromKInfoProc(Process *proc, struct kinfo_proc *ps, time_t
       proc->ppid = ps->kp_eproc.e_ppid;
       proc->pgrp = ps->kp_eproc.e_pgid;
       proc->session = 0; /* TODO Get the session id */
-      proc->tgid = ps->kp_eproc.e_tpgid;
+      proc->tpgid = ps->kp_eproc.e_tpgid;
+      proc->tgid = proc->pid;
       proc->st_uid = ps->kp_eproc.e_ucred.cr_uid;
       /* e_tdev = (major << 24) | (minor & 0xffffff) */
       /* e_tdev == -1 for "no device" */
       proc->tty_nr = ps->kp_eproc.e_tdev & 0xff; /* TODO tty_nr is unsigned */
 
       DarwinProcess_setStartTime(proc, ep, now);
-
+      proc->comm = DarwinProcess_getCmdLine(ps, &(proc->basenameOffset));
-      /* The command is from the old Mac htop */
-      char *slash;
-
-      proc->comm = DarwinProcess_getCmdLine(ps, false);
-      slash = strrchr(proc->comm, '/');
-      proc->basenameOffset = (NULL != slash) ? (slash - proc->comm) : 0;
    }
 
    /* Mutable information */
    proc->nice = ep->p_nice;
    proc->priority = ep->p_priority;
 
-   /* Set the state */
+   proc->state = (ep->p_stat == SZOMB) ? 'Z' : '?';
-   switch(ep->p_stat) {
-   case SIDL:   proc->state = 'I'; break;
-   case SRUN:   proc->state = 'R'; break;
-   case SSLEEP: proc->state = 'S'; break;
-   case SSTOP:  proc->state = 'T'; break;
-   case SZOMB:  proc->state = 'Z'; break;
-   default:     proc->state = '?'; break;
-   }
 
    /* Make sure the updated flag is set */
    proc->updated = true;
@@ -327,8 +278,8 @@ void DarwinProcess_setFromLibprocPidinfo(DarwinProcess *proc, DarwinProcessList
 
       proc->super.time = (pti.pti_total_system + pti.pti_total_user) / 10000000;
       proc->super.nlwp = pti.pti_threadnum;
-      proc->super.m_size = pti.pti_virtual_size / 1024;
+      proc->super.m_size = pti.pti_virtual_size / 1024 / PAGE_SIZE_KB;
-      proc->super.m_resident = pti.pti_resident_size / 1024;
+      proc->super.m_resident = pti.pti_resident_size / 1024 / PAGE_SIZE_KB;
       proc->super.majflt = pti.pti_faults;
       proc->super.percent_mem = (double)pti.pti_resident_size * 100.0
               / (double)dpl->host_info.max_mem;
@@ -342,3 +293,71 @@ void DarwinProcess_setFromLibprocPidinfo(DarwinProcess *proc, DarwinProcessList
       dpl->super.runningTasks += pti.pti_numrunning;
    }
 }
+
+/*
+ * Scan threads for process state information.
+ * Based on: http://stackoverflow.com/questions/6788274/ios-mac-cpu-usage-for-thread
+ * and       https://github.com/max-horvath/htop-osx/blob/e86692e869e30b0bc7264b3675d2a4014866ef46/ProcessList.c
+ */
+void DarwinProcess_scanThreads(DarwinProcess *dp) {
+   Process* proc = (Process*) dp;
+   kern_return_t ret;
+   
+   if (!dp->taskAccess) {
+      return;
+   }
+   
+   if (proc->state == 'Z') {
+      return;
+   }
+
+   task_t port;
+   ret = task_for_pid(mach_task_self(), proc->pid, &port);
+   if (ret != KERN_SUCCESS) {
+      dp->taskAccess = false;
+      return;
+   }
+   
+   task_info_data_t tinfo;
+   mach_msg_type_number_t task_info_count = TASK_INFO_MAX;
+   ret = task_info(port, TASK_BASIC_INFO, (task_info_t) tinfo, &task_info_count);
+   if (ret != KERN_SUCCESS) {
+      dp->taskAccess = false;
+      return;
+   }
+   
+   thread_array_t thread_list;
+   mach_msg_type_number_t thread_count;
+   ret = task_threads(port, &thread_list, &thread_count);
+   if (ret != KERN_SUCCESS) {
+      dp->taskAccess = false;
+      mach_port_deallocate(mach_task_self(), port);
+      return;
+   }
+   
+   integer_t run_state = 999;
+   for (unsigned int i = 0; i < thread_count; i++) {
+      thread_info_data_t thinfo;
+      mach_msg_type_number_t thread_info_count = THREAD_BASIC_INFO_COUNT;
+      ret = thread_info(thread_list[i], THREAD_BASIC_INFO, (thread_info_t)thinfo, &thread_info_count);
+      if (ret == KERN_SUCCESS) {
+         thread_basic_info_t basic_info_th = (thread_basic_info_t) thinfo;
+         if (basic_info_th->run_state < run_state) {
+            run_state = basic_info_th->run_state;
+         }
+         mach_port_deallocate(mach_task_self(), thread_list[i]);
+      }
+   }
+   vm_deallocate(mach_task_self(), (vm_address_t) thread_list, sizeof(thread_port_array_t) * thread_count);
+   mach_port_deallocate(mach_task_self(), port);
+
+   char state = '?';
+   switch (run_state) {
+      case TH_STATE_RUNNING: state = 'R'; break;
+      case TH_STATE_STOPPED: state = 'S'; break;
+      case TH_STATE_WAITING: state = 'W'; break;
+      case TH_STATE_UNINTERRUPTIBLE: state = 'U'; break;
+      case TH_STATE_HALTED: state = 'H'; break;
+   }
+   proc->state = state;
+}

darwin/DarwinProcess.h

@@ -19,6 +19,7 @@ typedef struct DarwinProcess_ {
 
    uint64_t utime;
    uint64_t stime;
+   bool taskAccess;
 } DarwinProcess;
 
 
@@ -32,10 +33,17 @@ bool Process_isThread(Process* this);
 
 void DarwinProcess_setStartTime(Process *proc, struct extern_proc *ep, time_t now);
 
-char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int show_args );
+char *DarwinProcess_getCmdLine(struct kinfo_proc* k, int* basenameOffset);
 
 void DarwinProcess_setFromKInfoProc(Process *proc, struct kinfo_proc *ps, time_t now, bool exists);
 
 void DarwinProcess_setFromLibprocPidinfo(DarwinProcess *proc, DarwinProcessList *dpl);
 
+/*
+ * Scan threads for process state information.
+ * Based on: http://stackoverflow.com/questions/6788274/ios-mac-cpu-usage-for-thread
+ * and       https://github.com/max-horvath/htop-osx/blob/e86692e869e30b0bc7264b3675d2a4014866ef46/ProcessList.c
+ */
+void DarwinProcess_scanThreads(DarwinProcess *dp);
+
 #endif

darwin/DarwinProcessList.c

@@ -168,9 +168,11 @@ void ProcessList_goThroughEntries(ProcessList* super) {
     for(size_t i = 0; i < count; ++i) {
        proc = (DarwinProcess *)ProcessList_getProcess(super, ps[i].kp_proc.p_pid, &preExisting, (Process_New)DarwinProcess_new);
 
-       DarwinProcess_setFromKInfoProc(&proc->super, ps + i, tv.tv_sec, preExisting);
+       DarwinProcess_setFromKInfoProc(&proc->super, &ps[i], tv.tv_sec, preExisting);
        DarwinProcess_setFromLibprocPidinfo(proc, dpl);
        
+       DarwinProcess_scanThreads(proc);
+
        super->totalTasks += 1;
 
        if(!preExisting) {

darwin/Platform.c

@@ -280,13 +280,11 @@ char* Platform_getProcessEnv(pid_t pid) {
 
                size_t size = endp - p;
                env = xMalloc(size+2);
-               if (env) {
                memcpy(env, p, size);
                env[size] = 0;
                env[size+1] = 0;
             }
          }
-         }
          free(buf);
       }
    }

freebsd/Battery.c

@@ -6,10 +6,20 @@ in the source distribution for its full text.
 */
 
 #include "BatteryMeter.h"
+#include <sys/sysctl.h>
 
 void Battery_getData(double* level, ACPresence* isOnAC) {
-   // TODO
+   int life;
+   size_t life_len = sizeof(life);
+   if (sysctlbyname("hw.acpi.battery.life", &life, &life_len, NULL, 0) == -1)
       *level = -1;
-   *isOnAC = AC_ERROR;
+   else
-}
+      *level = life;
 
+   int acline;
+   size_t acline_len = sizeof(acline);
+   if (sysctlbyname("hw.acpi.acline", &acline, &acline_len, NULL, 0) == -1)
+      *isOnAC = AC_ERROR;
+   else
+      *isOnAC = acline == 0 ? AC_ABSENT : AC_PRESENT;
+}

freebsd/Battery.h

@@ -11,5 +11,4 @@ in the source distribution for its full text.
 
 void Battery_getData(double* level, ACPresence* isOnAC);
 
-
 #endif

freebsd/FreeBSDProcess.c

@@ -115,7 +115,7 @@ void FreeBSDProcess_writeField(Process* this, RichString* str, ProcessField fiel
    char buffer[256]; buffer[255] = '\0';
    int attr = CRT_colors[DEFAULT_COLOR];
    int n = sizeof(buffer) - 1;
-   switch (field) {
+   switch ((int) field) {
    // add FreeBSD-specific fields here
    case JID: snprintf(buffer, n, Process_pidFormat, fp->jid); break;
    case JAIL:{
@@ -143,7 +143,7 @@ long FreeBSDProcess_compare(const void* v1, const void* v2) {
       p2 = (FreeBSDProcess*)v1;
       p1 = (FreeBSDProcess*)v2;
    }
-   switch (settings->sortKey) {
+   switch ((int) settings->sortKey) {
    // add FreeBSD-specific fields here
    case JID:
       return (p1->jid - p2->jid);

freebsd/FreeBSDProcessList.c

@@ -14,7 +14,9 @@ in the source distribution for its full text.
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #include <sys/user.h>
+#include <err.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <string.h>
 
 /*{
@@ -84,14 +86,13 @@ static int MIB_kern_cp_time[2];
 static int MIB_kern_cp_times[2];
 static int kernelFScale;
 
-
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
+   size_t len;
+   char errbuf[_POSIX2_LINE_MAX];
    FreeBSDProcessList* fpl = xCalloc(1, sizeof(FreeBSDProcessList));
    ProcessList* pl = (ProcessList*) fpl;
    ProcessList_init(pl, Class(FreeBSDProcess), usersTable, pidWhiteList, userId);
 
-   size_t len;
-
    // physical memory in system: hw.physmem
    // physical page size: hw.pagesize
    // usable pagesize : vm.stats.vm.v_page_size
@@ -178,8 +179,10 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
       kernelFScale = 2048;
    }
 
-   fpl->kd = kvm_open(NULL, "/dev/null", NULL, 0, NULL);
+   fpl->kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, errbuf);
-   assert(fpl->kd);
+   if (fpl->kd == NULL) {
+      errx(1, "kvm_open: %s", errbuf);
+   }
 
    return pl;
 }
@@ -212,9 +215,6 @@ static inline void FreeBSDProcessList_scanCPUTime(ProcessList* pl) {
    unsigned long     *cp_time_n; // old clicks state
    unsigned long     *cp_time_o; // current clicks state
 
-   unsigned long long total_o = 0;
-   unsigned long long total_n = 0;
-   unsigned long long total_d = 0;
    unsigned long cp_time_d[CPUSTATES];
    double        cp_time_p[CPUSTATES];
 
@@ -251,6 +251,9 @@ static inline void FreeBSDProcessList_scanCPUTime(ProcessList* pl) {
       }
 
       // diff old vs new
+      unsigned long long total_o = 0;
+      unsigned long long total_n = 0;
+      unsigned long long total_d = 0;
       for (int s = 0; s < CPUSTATES; s++) {
         cp_time_d[s] = cp_time_n[s] - cp_time_o[s];
         total_o += cp_time_o[s];
@@ -424,7 +427,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
 
    int cpus = this->cpuCount;
    int count = 0;
-   struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, &count);
+   struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_PROC, 0, &count);
 
    for (int i = 0; i < count; i++) {
       struct kinfo_proc* kproc = &kprocs[i];
@@ -477,25 +480,21 @@ void ProcessList_goThroughEntries(ProcessList* this) {
       }
 
       // from FreeBSD source /src/usr.bin/top/machine.c
-      proc->m_size = kproc->ki_size / 1024;
+      proc->m_size = kproc->ki_size / 1024 / pageSizeKb;
-      proc->m_resident = kproc->ki_rssize * pageSizeKb;
+      proc->m_resident = kproc->ki_rssize;
+      proc->percent_mem = (proc->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem) * 100.0;
       proc->nlwp = kproc->ki_numthreads;
       proc->time = (kproc->ki_runtime + 5000) / 10000;
 
       proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)kernelFScale);
+      proc->percent_mem = 100.0 * (proc->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem);
+
       if (proc->percent_cpu > 0.1) {
          // system idle process should own all CPU time left regardless of CPU count
          if ( strcmp("idle", kproc->ki_comm) == 0 ) {
             isIdleProcess = true;
-         } else {
-            if (cpus > 1)
-               proc->percent_cpu = proc->percent_cpu / (double) cpus;
          }
       }
-      if (isIdleProcess == false && proc->percent_cpu >= 99.8) {
-         // don't break formatting
-         proc->percent_cpu = 99.8;
-      }
 
       proc->priority = kproc->ki_pri.pri_level - PZERO;
 

freebsd/FreeBSDProcessList.h

@@ -55,7 +55,6 @@ typedef struct FreeBSDProcessList_ {
 
 
 
-
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId);
 
 void ProcessList_delete(ProcessList* this);

freebsd/Platform.c

@@ -24,6 +24,7 @@ in the source distribution for its full text.
 #include <sys/resource.h>
 #include <vm/vm_param.h>
 #include <time.h>
+#include <math.h>
 
 /*{
 #include "Action.h"

htop.1.in

@@ -10,7 +10,7 @@ Htop is a free (GPL) ncurses-based process viewer for Linux.
 .LP
 It is similar to top, but allows you to scroll vertically and horizontally,
 so you can see all the processes running on the system, along with their full
-command lines, as well as viewing them as a process tree, selecting mutiple
+command lines, as well as viewing them as a process tree, selecting multiple
 processes and acting on them all at once.
 .LP
 Tasks related to processes (killing, renicing) can be done without
@@ -48,8 +48,34 @@ Output version information and exit
 The following commands are supported while in htop:
 .LP 
 .TP 5
-.B Arrows, PgUP, PgDn, Home, End
+.B Up, Alt-k
-Scroll the process list.
+Select (hightlight) the previous process in the process list. Scroll the list
+if necessary.
+.TP
+.B Down, Alt-j
+Select (hightlight) the next process in the process list. Scroll the list if
+necessary.
+.TP
+.B Left, Alt-h
+Scroll the process list left.
+.TP
+.B Right, Alt-l
+Scroll the process list right.
+.TP
+.B PgUp, PgDn
+Scroll the process list up or down one window.
+.TP
+.B Home
+Scroll to the top of the process list and select the first process.
+.TP
+.B End
+Scroll to the bottom of the process list and select the last process.
+.TP
+.B Ctrl-A, ^
+Scroll left to the beginning of the process entry (i.e. beginning of line).
+.TP
+.B Ctrl-E, $
+Scroll right to the end of the process entry (i.e. end of line).
 .TP
 .B Space
 Tag or untag a process. Commands that can operate on multiple processes,

htop.c

@@ -176,7 +176,8 @@ int main(int argc, char** argv) {
 
 #ifdef HAVE_PROC
    if (access(PROCDIR, R_OK) != 0) {
-      fprintf("Error: could not read procfs (compiled to look in %s).\n", PROCDIR);
+      fprintf(stderr, "Error: could not read procfs (compiled to look in %s).\n", PROCDIR);
+      exit(1);
    }
 #endif
    
@@ -229,194 +230,6 @@ int main(int argc, char** argv) {
 
    ScreenManager_run(scr, NULL, NULL);   
    
-   /*
-   FunctionBar_draw(defaultBar, NULL);
-   
-   int acc = 0;
-   bool follow = false;
- 
-   struct timeval tv;
-   double oldTime = 0.0;
-
-   int ch = ERR;
-   int closeTimeout = 0;
-
-   bool drawPanel = true;
-   
-   bool collapsed = false;
-   
-   Htop_Action keys[KEY_MAX] = { NULL };
-   setBindings(keys);
-   Platform_setBindings(keys);
-
-   bool quit = false;
-   int sortTimeout = 0;
-   int resetSortTimeout = 5;
-   bool doRefresh = true;
-   bool forceRecalculate = false;
-   
-   while (!quit) {
-      gettimeofday(&tv, NULL);
-      double newTime = ((double)tv.tv_sec * 10) + ((double)tv.tv_usec / 100000);
-      bool timeToRecalculate = (newTime - oldTime > settings->delay);
-      if (newTime < oldTime) timeToRecalculate = true; // clock was adjusted?
-      int following = follow ? MainPanel_selectedPid((MainPanel*)panel) : -1;
-      if (timeToRecalculate) {
-         Header_draw(header);
-         oldTime = newTime;
-      }
-      if (doRefresh) {
-         if (timeToRecalculate || forceRecalculate) {
-            ProcessList_scan(pl);
-            forceRecalculate = false;
-         }
-         if (sortTimeout == 0 || settings->treeView) {
-            ProcessList_sort(pl);
-            sortTimeout = 1;
-         }
-         ProcessList_rebuildPanel(pl, true, following, IncSet_filter(inc));
-         drawPanel = true;
-      }
-      doRefresh = true;
-      
-      if (settings->treeView) {
-         Process* p = (Process*) Panel_getSelected(panel);
-         if (p) {
-            if (!p->showChildren && !collapsed) {
-               FunctionBar_setLabel(defaultBar, KEY_F(6), "Expand");
-               FunctionBar_draw(defaultBar, NULL);
-            } else if (p->showChildren && collapsed) {
-               FunctionBar_setLabel(defaultBar, KEY_F(6), "Collap");
-               FunctionBar_draw(defaultBar, NULL);
-            }
-            collapsed = !p->showChildren;
-         }
-      } else {
-         collapsed = false;
-      }
-
-      if (drawPanel) {
-         Panel_draw(panel, true);
-      }
-      
-      int prev = ch;
-      if (inc->active)
-         move(LINES-1, CRT_cursorX);
-      ch = getch();
-
-      if (ch == ERR) {
-         if (!inc->active)
-            sortTimeout--;
-         if (prev == ch && !timeToRecalculate) {
-            closeTimeout++;
-            if (closeTimeout == 100) {
-               break;
-            }
-         } else
-            closeTimeout = 0;
-         drawPanel = false;
-         continue;
-      }
-      drawPanel = true;
-
-      Htop_Reaction reaction = HTOP_OK;
-
-      if (ch == KEY_MOUSE) {
-         MEVENT mevent;
-         int ok = getmouse(&mevent);
-         if (ok == OK) {
-            if (mevent.bstate & BUTTON1_CLICKED) {
-               if (mevent.y == panel->y) {
-                  int x = panel->scrollH + mevent.x + 1;
-                  ProcessField field = ProcessList_keyAt(pl, x);
-                  if (field == settings->sortKey) {
-                     Settings_invertSortOrder(settings);
-                     settings->treeView = false;
-                     reaction |= HTOP_REDRAW_BAR;
-                  } else {
-                     reaction |= setSortKey(settings, field);
-                  }
-                  sortTimeout = 0;
-                  ch = ERR;
-               } else if (mevent.y >= panel->y + 1 && mevent.y < LINES - 1) {
-                  Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV - 1);
-                  follow = true;
-                  ch = ERR;
-               } if (mevent.y == LINES - 1) {
-                  ch = FunctionBar_synthesizeEvent(inc->bar, mevent.x);
-               }
-            } else if (mevent.bstate & BUTTON4_CLICKED) {
-               ch = KEY_UP;
-            #if NCURSES_MOUSE_VERSION > 1
-            } else if (mevent.bstate & BUTTON5_CLICKED) {
-               ch = KEY_DOWN;
-            #endif
-            }
-         }
-      }
-
-      if (inc->active) {
-         doRefresh = IncSet_handleKey(inc, ch, panel, getMainPanelValue, NULL);
-         if (!inc->active) {
-            follow = true;
-         }
-         continue;
-      }
-      
-      if (ch < 255 && isdigit((char)ch)) {
-         if (Panel_size(panel) == 0) continue;
-         pid_t pid = ch-48 + acc;
-         for (int i = 0; i < ProcessList_size(pl); i++) {
-            Panel_setSelected(panel, i);
-            Process* p = (Process*) Panel_getSelected(panel);
-            if (p && p->pid == pid) {
-               break;
-            }
-         }
-         acc = pid * 10;
-         if (acc > 10000000)
-            acc = 0;
-         continue;
-      } else {
-         acc = 0;
-      }
-
-      if(ch != ERR && keys[ch]) {
-         reaction |= (keys[ch])(&state);
-      } else {
-         doRefresh = false;
-         sortTimeout = resetSortTimeout;
-         Panel_onKey(panel, ch);
-      }
-      
-      // Reaction handlers:
-
-      if (reaction & HTOP_REDRAW_BAR) {
-         updateTreeFunctions(defaultBar, settings->treeView);
-         IncSet_drawBar(inc);
-      }
-      if (reaction & HTOP_UPDATE_PANELHDR) {
-         ProcessList_printHeader(pl, Panel_getHeader(panel));
-      }
-      if (reaction & HTOP_REFRESH) {
-         doRefresh = true;
-         sortTimeout = 0;
-      }      
-      if (reaction & HTOP_RECALCULATE) {
-         forceRecalculate = true;
-         sortTimeout = 0;
-      }
-      if (reaction & HTOP_SAVE_SETTINGS) {
-         settings->changed = true;
-      }
-      if (reaction & HTOP_QUIT) {
-         quit = true;
-      }
-      follow = (reaction & HTOP_KEEP_FOLLOWING);
-   }
-   
-   */
-   
    attron(CRT_colors[RESET_COLOR]);
    mvhline(LINES-1, 0, ' ', COLS);
    attroff(CRT_colors[RESET_COLOR]);
@@ -428,11 +241,6 @@ int main(int argc, char** argv) {
    Header_delete(header);
    ProcessList_delete(pl);
 
-   /*   
-   FunctionBar_delete((Object*)defaultBar);
-   Panel_delete((Object*)panel);
-   */
-   
    ScreenManager_delete(scr);
    
    UsersTable_delete(ut);

htop.desktop

@@ -60,3 +60,4 @@ GenericName[sv]=Processvisning
 GenericName[tr]=Süreç Görüntüleyici
 GenericName[uk]=Перегляд процесів
 GenericName[zh_TW]=行程檢視器
+Keywords=system;process;task

linux/Battery.c

@@ -65,10 +65,11 @@ static unsigned long int parseBatInfo(const char *fileName, const unsigned short
          break;
       }
 
-      char line[50] = "";
+      char* line = NULL;
       for (unsigned short int i = 0; i < lineNum; i++) {
-         char* ok = fgets(line, sizeof line, file);
+         free(line);
-         if (!ok) break;
+         line = String_readLine(file);
+         if (!line) break;
       }
 
       fclose(file);
@@ -76,6 +77,7 @@ static unsigned long int parseBatInfo(const char *fileName, const unsigned short
       char *foundNumStr = String_getToken(line, wordNum);
       const unsigned long int foundNum = atoi(foundNumStr);
       free(foundNumStr);
+      free(line);
       
       total += foundNum;
    }
@@ -116,14 +118,13 @@ static ACPresence procAcpiCheck() {
          continue;
       }
 
-      char line[100];
+      char* line = String_readLine(file);
-      char* ok = fgets(line, sizeof line, file);
+      if (!line) continue;
-      if (!ok) continue;
-      line[sizeof(line) - 1] = '\0';
 
       fclose(file);
 
       const char *isOnline = String_getToken(line, 2);
+      free(line);
 
       if (strcmp(isOnline, "on-line") == 0) {
          isOn = AC_PRESENT;

linux/LinuxProcess.c

@@ -268,13 +268,20 @@ io_priority = (cpu_nice + 20) / 5. -- From ionice(1) man page
 #define LinuxProcess_effectiveIOPriority(p_) (IOPriority_class(p_->ioPriority) == IOPRIO_CLASS_NONE ? IOPriority_tuple(IOPRIO_CLASS_BE, (p_->super.nice + 20) / 5) : p_->ioPriority)
 
 IOPriority LinuxProcess_updateIOPriority(LinuxProcess* this) {
-   IOPriority ioprio = syscall(SYS_ioprio_get, IOPRIO_WHO_PROCESS, this->super.pid);
+   IOPriority ioprio = 0;
+// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
+#ifdef SYS_ioprio_get
+   ioprio = syscall(SYS_ioprio_get, IOPRIO_WHO_PROCESS, this->super.pid);
+#endif
    this->ioPriority = ioprio;
    return ioprio;
 }
 
 bool LinuxProcess_setIOPriority(LinuxProcess* this, IOPriority ioprio) {
+// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
+#ifdef SYS_ioprio_set
    syscall(SYS_ioprio_set, IOPRIO_WHO_PROCESS, this->super.pid, ioprio);
+#endif
    return (LinuxProcess_updateIOPriority(this) == ioprio);
 }
 
@@ -306,7 +313,12 @@ void LinuxProcess_writeField(Process* this, RichString* str, ProcessField field)
    case CNCLWB: Process_colorNumber(str, lp->io_cancelled_write_bytes, coloring); return;
    case IO_READ_RATE:  Process_outputRate(str, buffer, n, lp->io_rate_read_bps, coloring); return;
    case IO_WRITE_RATE: Process_outputRate(str, buffer, n, lp->io_rate_write_bps, coloring); return;
-   case IO_RATE: Process_outputRate(str, buffer, n, lp->io_rate_read_bps + lp->io_rate_write_bps, coloring); return;
+   case IO_RATE: {
+      double totalRate = (lp->io_rate_read_bps != -1)
+                       ? (lp->io_rate_read_bps + lp->io_rate_write_bps)
+                       : -1;
+      Process_outputRate(str, buffer, n, totalRate, coloring); return;
+   }
    #endif
    #ifdef HAVE_OPENVZ
    case CTID: snprintf(buffer, n, "%7u ", lp->ctid); break;

linux/LinuxProcessList.c

@@ -292,18 +292,19 @@ static void LinuxProcessList_readIoFile(LinuxProcess* process, const char* dirna
          }
          break;
       case 's':
-         if (line[5] == 'r' && strncmp(line+1, "yscr: ", 6) == 0)
+         if (line[5] == 'r' && strncmp(line+1, "yscr: ", 6) == 0) {
             process->io_syscr = strtoull(line+7, NULL, 10);
-         else if (strncmp(line+1, "yscw: ", 6) == 0)
+         } else if (strncmp(line+1, "yscw: ", 6) == 0) {
-            sscanf(line, "syscw: %32llu", &process->io_syscw);
             process->io_syscw = strtoull(line+7, NULL, 10);
+         }
          break;
       case 'c':
-         if (strncmp(line+1, "ancelled_write_bytes: ", 22) == 0)
+         if (strncmp(line+1, "ancelled_write_bytes: ", 22) == 0) {
            process->io_cancelled_write_bytes = strtoull(line+23, NULL, 10);
         }
       }
    }
+}
 
 #endif
 
@@ -446,7 +447,7 @@ static void LinuxProcessList_readOomData(LinuxProcess* process, const char* dirn
 }
 
 static void setCommand(Process* process, const char* command, int len) {
-   if (process->comm && process->commLen <= len) {
+   if (process->comm && process->commLen >= len) {
       strncpy(process->comm, command, len + 1);
    } else {
       free(process->comm);
@@ -469,6 +470,7 @@ static bool LinuxProcessList_readCmdlineFile(Process* process, const char* dirna
    int amtRead = xread(fd, command, sizeof(command) - 1);
    close(fd);
    int tokenEnd = 0; 
+   int lastChar = 0;
    if (amtRead > 0) {
       for (int i = 0; i < amtRead; i++)
          if (command[i] == '\0' || command[i] == '\n') {
@@ -476,14 +478,16 @@ static bool LinuxProcessList_readCmdlineFile(Process* process, const char* dirna
                tokenEnd = i;
             }
             command[i] = ' ';
+         } else {
+            lastChar = i;
          }
    }
    if (tokenEnd == 0) {
       tokenEnd = amtRead;
    }
-   command[amtRead] = '\0';
+   command[lastChar + 1] = '\0';
    process->basenameOffset = tokenEnd;
-   setCommand(process, command, amtRead);
+   setCommand(process, command, lastChar + 1);
 
    return true;
 }
@@ -584,7 +588,7 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char*
 
          ProcessList_add(pl, proc);
       } else {
-         if (settings->updateProcessNames) {
+         if (settings->updateProcessNames && proc->state != 'Z') {
             if (! LinuxProcessList_readCmdlineFile(proc, dirname, name)) {
                goto errorReadingProcess;
             }
@@ -599,11 +603,11 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char*
       if (settings->flags & PROCESS_FLAG_LINUX_OOM)
          LinuxProcessList_readOomData(lp, dirname, name);
 
-      if (proc->state == 'Z') {
+      if (proc->state == 'Z' && (proc->basenameOffset == 0)) {
          proc->basenameOffset = -1;
          setCommand(proc, command, commLen);
       } else if (Process_isThread(proc)) {
-         if (settings->showThreadNames || Process_isKernelThread(proc) || proc->state == 'Z') {
+         if (settings->showThreadNames || Process_isKernelThread(proc) || (proc->state == 'Z' && proc->basenameOffset == 0)) {
             proc->basenameOffset = -1;
             setCommand(proc, command, commLen);
          } else if (settings->showThreadNames) {
@@ -720,31 +724,23 @@ static inline double LinuxProcessList_scanCPUTime(LinuxProcessList* this) {
       unsigned long long int virtalltime = guest + guestnice;
       unsigned long long int totaltime = usertime + nicetime + systemalltime + idlealltime + steal + virtalltime;
       CPUData* cpuData = &(this->cpus[i]);
-      assert (systemtime >= cpuData->systemTime);
-      assert (idletime >= cpuData->idleTime);
-      assert (totaltime >= cpuData->totalTime);
-      assert (systemalltime >= cpuData->systemAllTime);
-      assert (idlealltime >= cpuData->idleAllTime);
-      assert (ioWait >= cpuData->ioWaitTime);
-      assert (irq >= cpuData->irqTime);
-      assert (softIrq >= cpuData->softIrqTime);
-      assert (steal >= cpuData->stealTime);
-      assert (virtalltime >= cpuData->guestTime);
       // Since we do a subtraction (usertime - guest) and cputime64_to_clock_t()
       // used in /proc/stat rounds down numbers, it can lead to a case where the
       // integer overflow.
-      cpuData->userPeriod = (usertime > cpuData->userTime) ? usertime - cpuData->userTime : 0;
+      #define WRAP_SUBTRACT(a,b) (a > b) ? a - b : 0
-      cpuData->nicePeriod = (nicetime > cpuData->niceTime) ? nicetime - cpuData->niceTime : 0;
+      cpuData->userPeriod = WRAP_SUBTRACT(usertime, cpuData->userTime);
-      cpuData->systemPeriod = systemtime - cpuData->systemTime;
+      cpuData->nicePeriod = WRAP_SUBTRACT(nicetime, cpuData->niceTime);
-      cpuData->systemAllPeriod = systemalltime - cpuData->systemAllTime;
+      cpuData->systemPeriod = WRAP_SUBTRACT(systemtime, cpuData->systemTime);
-      cpuData->idleAllPeriod = idlealltime - cpuData->idleAllTime;
+      cpuData->systemAllPeriod = WRAP_SUBTRACT(systemalltime, cpuData->systemAllTime);
-      cpuData->idlePeriod = idletime - cpuData->idleTime;
+      cpuData->idleAllPeriod = WRAP_SUBTRACT(idlealltime, cpuData->idleAllTime);
-      cpuData->ioWaitPeriod = ioWait - cpuData->ioWaitTime;
+      cpuData->idlePeriod = WRAP_SUBTRACT(idletime, cpuData->idleTime);
-      cpuData->irqPeriod = irq - cpuData->irqTime;
+      cpuData->ioWaitPeriod = WRAP_SUBTRACT(ioWait, cpuData->ioWaitTime);
-      cpuData->softIrqPeriod = softIrq - cpuData->softIrqTime;
+      cpuData->irqPeriod = WRAP_SUBTRACT(irq, cpuData->irqTime);
-      cpuData->stealPeriod = steal - cpuData->stealTime;
+      cpuData->softIrqPeriod = WRAP_SUBTRACT(softIrq, cpuData->softIrqTime);
-      cpuData->guestPeriod = virtalltime - cpuData->guestTime;
+      cpuData->stealPeriod = WRAP_SUBTRACT(steal, cpuData->stealTime);
-      cpuData->totalPeriod = totaltime - cpuData->totalTime;
+      cpuData->guestPeriod = WRAP_SUBTRACT(virtalltime, cpuData->guestTime);
+      cpuData->totalPeriod = WRAP_SUBTRACT(totaltime, cpuData->totalTime);
+      #undef WRAP_SUBTRACT
       cpuData->userTime = usertime;
       cpuData->niceTime = nicetime;
       cpuData->systemTime = systemtime;

openbsd/OpenBSDProcessList.c

@@ -10,18 +10,20 @@ in the source distribution for its full text.
 #include "OpenBSDProcessList.h"
 #include "OpenBSDProcess.h"
 
-#include <unistd.h>
-#include <stdlib.h>
 #include <err.h>
 #include <errno.h>
-#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/mount.h>
 #include <sys/param.h>
 #include <sys/proc.h>
-#include <sys/sysctl.h>
-#include <sys/user.h>
-#include <fcntl.h>
-#include <string.h>
 #include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <sys/types.h>
+#include <sys/user.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 /*{
 
@@ -42,22 +44,37 @@ typedef struct OpenBSDProcessList_ {
 
 }*/
 
-#ifndef CLAMP
+/*
-#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
+ * avoid relying on or conflicting with MIN() and MAX() in sys/param.h
+ */
+#ifndef MINIMUM
+#define MINIMUM(x, y)		((x) > (y) ? (y) : (x))
+#endif
+
+#ifndef MAXIMUM
+#define MAXIMUM(x, y)		((x) > (y) ? (x) : (y))
+#endif
+
+#ifndef CLAMP
+#define CLAMP(x, low, high)	(((x) > (high)) ? (high) : MAXIMUM(x, low))
 #endif
 
-static int pageSizeKb;
 static long fscale;
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
    int mib[] = { CTL_HW, HW_NCPU };
    int fmib[] = { CTL_KERN, KERN_FSCALE };
    int i, e;
-   OpenBSDProcessList* opl = xCalloc(1, sizeof(OpenBSDProcessList));
+   OpenBSDProcessList* opl;
-   ProcessList* pl = (ProcessList*) opl;
+   ProcessList* pl;
-   size_t size = sizeof(pl->cpuCount);
+   size_t size;
+   char errbuf[_POSIX2_LINE_MAX];
 
+   opl = xCalloc(1, sizeof(OpenBSDProcessList));
+   pl = (ProcessList*) opl;
+   size = sizeof(pl->cpuCount);
    ProcessList_init(pl, Class(OpenBSDProcess), usersTable, pidWhiteList, userId);
+
    e = sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0);
    if (e == -1 || pl->cpuCount < 1) {
       pl->cpuCount = 1;
@@ -65,26 +82,29 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
    opl->cpus = xRealloc(opl->cpus, pl->cpuCount * sizeof(CPUData));
 
    size = sizeof(fscale);
-   if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0)
+   if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0) {
       err(1, "fscale sysctl call failed");
+   }
 
    for (i = 0; i < pl->cpuCount; i++) {
       opl->cpus[i].totalTime = 1;
       opl->cpus[i].totalPeriod = 1;
    }
 
-   pageSizeKb = PAGE_SIZE_KB;
+   opl->kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf);
-
+   if (opl->kd == NULL) {
-   // XXX: last arg should eventually be an errbuf
+      errx(1, "kvm_open: %s", errbuf);
-   opl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+   }
-   assert(opl->kd);
 
    return pl;
 }
 
 void ProcessList_delete(ProcessList* this) {
    const OpenBSDProcessList* opl = (OpenBSDProcessList*) this;
-   if (opl->kd) kvm_close(opl->kd);
+
+   if (opl->kd) {
+      kvm_close(opl->kd);
+   }
 
    free(opl->cpus);
 
@@ -95,15 +115,26 @@ void ProcessList_delete(ProcessList* this) {
 static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    static int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
    struct uvmexp uvmexp;
-   size_t size = sizeof(uvmexp);
+   size_t size_uvmexp = sizeof(uvmexp);
 
-   if (sysctl(uvmexp_mib, 2, &uvmexp, &size, NULL, 0) < 0) {
+   if (sysctl(uvmexp_mib, 2, &uvmexp, &size_uvmexp, NULL, 0) < 0) {
       err(1, "uvmexp sysctl call failed");
    }
 
-   //kb_pagesize = uvmexp.pagesize / 1024;
+   pl->totalMem = uvmexp.npages * PAGE_SIZE_KB;
-   pl->usedMem = uvmexp.active * pageSizeKb;
+
-   pl->totalMem = uvmexp.npages * pageSizeKb;
+   // Taken from OpenBSD systat/iostat.c, top/machine.c and uvm_sysctl(9)
+   static int bcache_mib[] = {CTL_VFS, VFS_GENERIC, VFS_BCACHESTAT};
+   struct bcachestats bcstats;
+   size_t size_bcstats = sizeof(bcstats);
+
+   if (sysctl(bcache_mib, 3, &bcstats, &size_bcstats, NULL, 0) < 0) {
+      err(1, "cannot get vfs.bcachestat");
+   }
+
+   pl->cachedMem = bcstats.numbufpages * PAGE_SIZE_KB;
+   pl->freeMem = uvmexp.free * PAGE_SIZE_KB;
+   pl->usedMem = (uvmexp.npages - uvmexp.free - uvmexp.paging) * PAGE_SIZE_KB;
 
    /*
    const OpenBSDProcessList* opl = (OpenBSDProcessList*) pl;
@@ -112,10 +143,10 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
    pl->totalMem /= 1024;
    sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(pl->usedMem), &len, NULL, 0);
-   pl->usedMem *= pageSizeKb;
+   pl->usedMem *= PAGE_SIZE_KB;
    pl->freeMem = pl->totalMem - pl->usedMem;
    sysctl(MIB_vm_stats_vm_v_cache_count, 4, &(pl->cachedMem), &len, NULL, 0);
-   pl->cachedMem *= pageSizeKb;
+   pl->cachedMem *= PAGE_SIZE_KB;
 
    struct kvm_swap swap[16];
    int nswap = kvm_getswapinfo(opl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
@@ -125,8 +156,8 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
       pl->totalSwap += swap[i].ksw_total;
       pl->usedSwap += swap[i].ksw_used;
    }
-   pl->totalSwap *= pageSizeKb;
+   pl->totalSwap *= PAGE_SIZE_KB;
-   pl->usedSwap *= pageSizeKb;
+   pl->usedSwap *= PAGE_SIZE_KB;
 
    pl->sharedMem = 0;  // currently unused
    pl->buffersMem = 0; // not exposed to userspace
@@ -134,40 +165,40 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
 }
 
 char *OpenBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd) {
-   char *s, *buf, **arg;
+   char *s, **arg;
-   size_t cpsz, len = 0, n;
+   size_t len = 0, n;
    int i;
 
    /*
-    * We attempt to fall back to just the command name (argv[0]) if we
+    * Like OpenBSD's top(1), we try to fall back to the command name
-    * fail to construct the full command at any point.
+    * (argv[0]) if we fail to construct the full command.
     */
    arg = kvm_getargv(kd, kproc, 500);
-   if (arg == NULL) {
+   if (arg == NULL || *arg == NULL) {
-      if ((s = xStrdup(kproc->p_comm)) == NULL) {
+      *basenameEnd = strlen(kproc->p_comm);
-         err(1, NULL);
+      return xStrdup(kproc->p_comm);
-      }
-      return s;
    }
    for (i = 0; arg[i] != NULL; i++) {
-      len += strlen(arg[i]) + 1;
+      len += strlen(arg[i]) + 1;   /* room for arg and trailing space or NUL */
    }
-   if ((buf = s = xMalloc(len)) == NULL) {
+   /* don't use xMalloc here - we want to handle huge argv's gracefully */
-      if ((s = xStrdup(kproc->p_comm)) == NULL) {
+   if ((s = malloc(len)) == NULL) {
-         err(1, NULL);
+      *basenameEnd = strlen(kproc->p_comm);
-      }
+      return xStrdup(kproc->p_comm);
-      return s;
    }
+
+   *s = '\0';
+
    for (i = 0; arg[i] != NULL; i++) {
-      n = strlcpy(buf, arg[i], (s + len) - buf);
+      n = strlcat(s, arg[i], len);
-      buf += n;
       if (i == 0) {
-         *basenameEnd = n;
+         /* TODO: rename all basenameEnd to basenameLen, make size_t */
+         *basenameEnd = MINIMUM(n, len-1);
       }
-      *buf = ' ';
+      /* the trailing space should get truncated anyway */
-      buf++;
+      strlcat(s, " ", len);
    }
-   *(buf - 1) = '\0';
+
    return s;
 }
 

openbsd/OpenBSDProcessList.h

@@ -27,10 +27,20 @@ typedef struct OpenBSDProcessList_ {
 } OpenBSDProcessList;
 
 
-#ifndef CLAMP
+/*
-#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
+ * avoid relying on or conflicting with MIN() and MAX() in sys/param.h
+ */
+#ifndef MINIMUM
+#define MINIMUM(x, y)		((x) > (y) ? (y) : (x))
 #endif
 
+#ifndef MAXIMUM
+#define MAXIMUM(x, y)		((x) > (y) ? (x) : (y))
+#endif
+
+#ifndef CLAMP
+#define CLAMP(x, low, high)	(((x) > (high)) ? (high) : MAXIMUM(x, low))
+#endif
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId);
 

openbsd/Platform.c

@@ -265,9 +265,6 @@ void Platform_setSwapValues(Meter* this) {
    }
 
    swdev = xCalloc(nswap, sizeof(*swdev));
-   if (swdev == NULL) {
-      return;
-   }
 
    rnswap = swapctl(SWAP_STATS, swdev, nswap);
    if (rnswap == -1) {

test_spec.lua

@@ -4,6 +4,8 @@ local VISUALDELAY = os.getenv("VISUALDELAY")
  
 local visual = VISUALDELAY or false
 local visual_delay = VISUALDELAY and (tonumber(VISUALDELAY)) or 0.1
+local short_delay = 0.3
+local long_delay = 1
 
 local unistd = require("posix.unistd")
 local time = require("posix.time")
@@ -12,15 +14,16 @@ local rote = require("rote")
 
 local rt = rote.RoteTerm(24, 80)
 
+--[[
 local function os_execread(cmd)
    local fd = io.popen(cmd, "r")
    local out = fd:read("*a")
    fd:close()
    return (out:gsub("\n$", ""))
 end
-local branch = os_execread("git branch | grep '*'"):sub(3)
+]]
-
+--local branch = os_execread("git branch | grep '*'"):sub(3)
-print("Running in branch "..branch)
+--print("Running in branch "..branch)
 
 os.execute("make coverage")
 os.execute("rm -f *.gcda */*.gcda")
@@ -30,7 +33,7 @@ os.execute("killall htop")
 os.execute("ps aux | grep '[s]leep 12345' | awk '{print $2}' | xargs kill 2> /dev/null")
 
 os.execute("cp ./default.htoprc ./test.htoprc")
-rt:forkPty("LC_ALL=C HTOPRC=./test.htoprc ./htop")
+rt:forkPty("LC_ALL=C HTOPRC=./test.htoprc ./htop 2> htop-valgrind.txt")
 
 local stdscr, term_win
 -- Curses initalization needed even when not in visual mode
@@ -59,10 +62,6 @@ else
    curses.endwin()
 end
 
-local function delay(t)
-   time.nanosleep({ tv_sec = math.floor(t), tv_nsec = (t - math.floor(t)) * 1000000000 })
-end
-
 local function show(key)
    rt:update()
    if visual then
@@ -115,7 +114,12 @@ end
 
 local ESC = "\27\27"
 
-time.nanosleep({ tv_sec = 0, tv_nsec = 150000000 }) -- give some time for htop to initialize.
+function delay(t)
+   time.nanosleep({ tv_sec = math.floor(t), tv_nsec = (t - math.floor(t)) * 1000000000 })
+end
+
+delay(2) -- give some time for htop to initialize.
+rt:update()
 
 local y_panelhdr = (function()
    for y = 1, 24 do
@@ -125,7 +129,9 @@ local y_panelhdr = (function()
    end
 end)() or 1
 
-local x_metercol2 = (branch == "wip") and 41 or 43
+assert.not_equal(y_panelhdr, 1)
+
+local x_metercol2 = 41
 
 show()
 
@@ -190,7 +196,7 @@ describe("htop test suite", function()
       send("\\")
       send("x\127bux\127sted") -- test backspace
       send("\n")
-      delay(0.2)
+      delay(short_delay)
       rt:update()
       local pid = ("      "..tostring(unistd.getpid())):sub(-5)
       local ourpid = check_string_at(1, y_panelhdr + 1, pid)
@@ -198,10 +204,10 @@ describe("htop test suite", function()
       send(ESC)
       send(curses.KEY_F5)
       send(curses.KEY_HOME)
-      delay(0.15)
+      delay(short_delay)
       rt:update()
       local initpid = check_string_at(1, y_panelhdr + 1, "    1")
-      delay(0.15)
+      delay(short_delay)
       rt:update()
       send(curses.KEY_F5)
       assert.equal(check(ourpid))
@@ -213,7 +219,7 @@ describe("htop test suite", function()
       send("/")
       send("busted")
       local attr = rt:cellAttr(rt:rows() - 1, 30)
-      delay(0.3)
+      delay(short_delay)
       local line = find_selected_y()
       local pid = ("      "..tostring(unistd.getpid())):sub(-5)
       assert.equal(attr, attrs.black_on_cyan)
@@ -227,7 +233,7 @@ describe("htop test suite", function()
       send(curses.KEY_F5)
       send(curses.KEY_END)
       send("1")
-      delay(0.3)
+      delay(short_delay)
       local line = find_selected_y()
       local initpid = check_string_at(1, line, "    1")
       send(curses.KEY_F5)
@@ -238,16 +244,16 @@ describe("htop test suite", function()
    running_it("horizontal scroll", function()
       local h_scroll = 20
       send(curses.KEY_F5)
-      delay(0.15)
+      delay(short_delay)
       local str1 = string_at(1+h_scroll, y_panelhdr+1, 5)
       send(curses.KEY_RIGHT)
-      delay(0.15)
+      delay(short_delay)
       local str2 = string_at(1, y_panelhdr+1, 5)
       send(curses.KEY_LEFT)
-      delay(0.15)
+      delay(short_delay)
       local str3 = string_at(1+h_scroll, y_panelhdr+1, 5)
       send(curses.KEY_LEFT)
-      delay(0.15)
+      delay(short_delay)
       local str4 = string_at(1+h_scroll, y_panelhdr+1, 5)
       send(curses.KEY_F5)
       assert.equal(str1, str2)
@@ -262,7 +268,7 @@ describe("htop test suite", function()
       local attr = rt:cellAttr(rt:rows() - 1, 30)
       assert.equal(attr, attrs.black_on_cyan)
       send("\n")
-      delay(0.3)
+      delay(short_delay)
       rt:update()
       local col = find_command_x()
       local procname = check_string_at(col, y_panelhdr + 1, "sleep 12345")
@@ -270,7 +276,7 @@ describe("htop test suite", function()
       send("\n")
       send("\\")
       send(ESC)
-      delay(0.3)
+      delay(short_delay)
       assert.equal(check(procname))
       assert.not_equal((os.execute("ps aux | grep -q '[s]leep 12345'")), true)
    end)
@@ -281,7 +287,7 @@ describe("htop test suite", function()
       send("busted")
       send("\n")
       send("s")
-      delay(1)
+      delay(long_delay)
       send(ESC)
    end)
 
@@ -291,7 +297,7 @@ describe("htop test suite", function()
       send("busted")
       send("\n")
       send("l")
-      delay(1)
+      delay(long_delay)
       send(ESC)
    end)
 
@@ -303,7 +309,7 @@ describe("htop test suite", function()
       send("l")
       send(curses.KEY_F4)
       send("pipe")
-      delay(1)
+      delay(long_delay)
       local pipefd = check_string_at(1, 3, "    3")
       send(ESC)
       assert.equal(check(pipefd))
@@ -317,7 +323,7 @@ describe("htop test suite", function()
       send("l")
       send(curses.KEY_F3)
       send("pipe")
-      delay(1)
+      delay(long_delay)
       local line = find_selected_y(3)
       local pipefd = check_string_at(1, line, "    3")
       send(ESC)
@@ -341,18 +347,18 @@ describe("htop test suite", function()
       send(curses.KEY_F5)
       send("u")
       send(curses.KEY_DOWN)
-      delay(0.3)
+      delay(short_delay)
       rt:update()
       local chosen = string_at(1, y_panelhdr + 2, 9)
       send("\n")
       send(curses.KEY_HOME)
-      delay(0.3)
+      delay(short_delay)
       rt:update()
       local shown = string_at(7, y_panelhdr + 1, 9)
       send("u")
       send("\n")
       send(curses.KEY_HOME)
-      delay(0.3)
+      delay(short_delay)
       rt:update()
       local inituser = string_at(7, y_panelhdr + 1, 9)
       send(curses.KEY_F5)
@@ -364,7 +370,7 @@ describe("htop test suite", function()
       send(curses.KEY_HOME)
       send("/")
       send("xxxxxxxxxx")
-      delay(0.3)
+      delay(short_delay)
       rt:update()
       local attr = rt:cellAttr(rt:rows() - 1, 30)
       assert.equal(attr, attrs.red_on_cyan)
@@ -405,14 +411,14 @@ describe("htop test suite", function()
       send(curses.KEY_DOWN, 2)
       send("\n")
       send(curses.KEY_F10)
-      delay(0.2)
+      delay(short_delay)
       local ppid = check_string_at(2, y_panelhdr, "PPID")
       send("S")
       send(curses.KEY_DOWN, 3)
       send(curses.KEY_RIGHT, 1)
       send(curses.KEY_DC)
       send(curses.KEY_F10)
-      delay(0.2)
+      delay(short_delay)
       local not_ppid = check_string_at(2, y_panelhdr, "PPID")
       assert.equal(check(ppid))
       assert.not_equal(check(not_ppid))
@@ -431,7 +437,7 @@ describe("htop test suite", function()
       local line = find_selected_y()
       local before = check_string_at(22, line, " 0")
       send(curses.KEY_F8)
-      delay(0.3)
+      delay(short_delay)
       local after = check_string_at(22, line, " 1")
       assert.equal(check(before))
       assert.equal(check(after))
@@ -444,7 +450,7 @@ describe("htop test suite", function()
       local line = find_selected_y()
       local before = string_at(22, line, 2)
       send(curses.KEY_F7)
-      delay(0.3)
+      delay(short_delay)
       local after = string_at(22, line, 2)
       assert.equal(before, after) -- no permissions
    end)
@@ -454,10 +460,10 @@ describe("htop test suite", function()
       send("P")
       send("I")
       send(curses.KEY_HOME)
-      delay(0.3)
+      delay(short_delay)
       local zerocpu = check_string_at(cpu_col, y_panelhdr + 1, " 0.0")
       send("I")
-      delay(0.3)
+      delay(short_delay)
       local nonzerocpu = check_string_at(cpu_col, y_panelhdr + 1, " 0.0")
       assert.equal(check(zerocpu))
       assert.not_equal(check(nonzerocpu))
@@ -483,7 +489,6 @@ describe("htop test suite", function()
    end)
 
    running_it("moves meters around", function()
-      if branch == "wip" then
       send("S")
       send(curses.KEY_RIGHT)
       send(curses.KEY_UP)
@@ -496,7 +501,6 @@ describe("htop test suite", function()
       send(curses.KEY_LEFT)
       send("\n")
       send(curses.KEY_F10)
-      end
    end)
    
    local meters = {
@@ -504,7 +508,7 @@ describe("htop test suite", function()
       { name = "load", down = 2, string = "Load" },
       { name = "battery", down = 7, string = "Battery" },
       { name = "hostname", down = 8, string = "Hostname" },
-      { name = "memory", down = 3, string = "Memory" },
+      { name = "memory", down = 3, string = "Mem" },
       { name = "CPU average", down = 16, string = "Avg" },
    }
 
@@ -513,19 +517,11 @@ describe("htop test suite", function()
       send(curses.KEY_RIGHT, 3)
       send(curses.KEY_DOWN, 9, "quick")
       for _ = 9, 14 do
-         if branch == "wip" then
          send("\n")
          send("\n")
          send(curses.KEY_DC)
          send(curses.KEY_RIGHT)
          send(curses.KEY_DOWN)
-         else
-            send(curses.KEY_F6)
-            send(curses.KEY_LEFT)
-            send(curses.KEY_DC)
-            send(curses.KEY_RIGHT)
-            send(curses.KEY_DOWN, 4)
-         end
       end
    end)
 
@@ -534,22 +530,15 @@ describe("htop test suite", function()
          send("S")
          send(curses.KEY_RIGHT, 3)
          send(curses.KEY_DOWN, item.down)
-         if branch == "wip" then
          send("\n")
          send(curses.KEY_UP, 4)
          send("\n")
-         else
-            send(curses.KEY_F6)
-            send(curses.KEY_LEFT)
-            send(curses.KEY_DOWN, 4)
-            send(curses.KEY_F7, 4)
-         end
          send(curses.KEY_F4, 4) -- cycle through meter modes
-         delay(0.15)
+         delay(short_delay)
          rt:update()
          local with = check_string_at(x_metercol2, 2, item.string)
          send(curses.KEY_DC)
-         delay(0.15)
+         delay(short_delay)
          local without = check_string_at(x_metercol2, 2, item.string)
          send(curses.KEY_F10)
          assert.equal(check(with))
@@ -590,7 +579,7 @@ describe("htop test suite", function()
       running_it("checks display option to "..item.name, function()
          for _ = 1, 2 do
             set_display_option(item.down)
-            delay(0.1)
+            delay(short_delay)
          end
       end)
    end
@@ -609,7 +598,7 @@ describe("htop test suite", function()
          send(curses.KEY_RIGHT)
          send(curses.KEY_F4, 4) -- cycle through CPU meter modes
          send(curses.KEY_F10)
-         delay(0.1)
+         delay(short_delay)
       end
    end)
 
@@ -636,7 +625,7 @@ describe("htop test suite", function()
       for y = y_panelhdr + 2, 23 do
          table.insert(taggedattrs, rt:cellAttr(y-1, 4))
       end
-      delay(0.2)
+      delay(short_delay)
       send("U")
       local untaggedattrs = {}
       rt:update()
@@ -687,6 +676,7 @@ describe("htop test suite", function()
       send("q")
       while not terminated() do
          unistd.sleep(1)
+         send("q")
       end
       assert(terminated())
       if visual then

unsupported/Platform.c

@@ -19,9 +19,16 @@ in the source distribution for its full text.
 /*{
 #include "Action.h"
 #include "BatteryMeter.h"
+#include "SignalsPanel.h"
 #include "UnsupportedProcess.h"
 }*/
 
+SignalItem Platform_signals[] = {
+   { .name = " 0 Cancel",    .number =  0 },
+};
+
+unsigned int Platform_numberOfSignals = sizeof(Platform_signals)/sizeof(SignalItem);
+
 ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
 
 ProcessFieldData Process_fields[] = {
@@ -79,7 +86,12 @@ void Platform_setBindings(Htop_Action* keys) {
 }
 
 int Platform_numberOfFields = 100;
-char* Process_pidFormat = "%7u ";
+
+extern char Process_pidFormat[20];
+
+ProcessPidColumn Process_pidColumns[] = {
+   { .id = 0, .label = NULL },
+};
 
 int Platform_getUptime() {
    return 0;
@@ -95,42 +107,26 @@ int Platform_getMaxPid() {
    return 1;
 }
 
-void Process_setupColumnWidths() {
-   int maxPid = Platform_getMaxPid();
-   if (maxPid == -1) return;
-   if (maxPid > 99999) {
-      Process_fields[PID].title =     "    PID ";
-      Process_fields[PPID].title =    "   PPID ";
-      Process_fields[TPGID].title =   "  TPGID ";
-      Process_fields[TGID].title =    "   TGID ";
-      Process_fields[PGRP].title =    "   PGRP ";
-      Process_fields[SESSION].title = "   SESN ";
-      Process_pidFormat = "%7u ";
-   } else {
-      Process_fields[PID].title =     "  PID ";
-      Process_fields[PPID].title =    " PPID ";
-      Process_fields[TPGID].title =   "TPGID ";
-      Process_fields[TGID].title =    " TGID ";
-      Process_fields[PGRP].title =    " PGRP ";
-      Process_fields[SESSION].title = " SESN ";
-      Process_pidFormat = "%5u ";
-   }
-}
-
 double Platform_setCPUValues(Meter* this, int cpu) {
+   (void) this;
+   (void) cpu;
    return 0.0;
 }
 
 void Platform_setMemoryValues(Meter* this) {
+   (void) this;
 }
 
 void Platform_setSwapValues(Meter* this) {
+   (void) this;
 }
 
 bool Process_isThread(Process* this) {
+   (void) this;
    return false;
 }
 
 char* Platform_getProcessEnv(pid_t pid) {
+   (void) pid;
    return NULL;
 }

unsupported/Platform.h

@@ -12,8 +12,13 @@ in the source distribution for its full text.
 
 #include "Action.h"
 #include "BatteryMeter.h"
+#include "SignalsPanel.h"
 #include "UnsupportedProcess.h"
 
+extern SignalItem Platform_signals[];
+
+extern unsigned int Platform_numberOfSignals;
+
 extern ProcessField Platform_defaultFields[];
 
 extern ProcessFieldData Process_fields[];
@@ -23,7 +28,10 @@ extern MeterClass* Platform_meterTypes[];
 void Platform_setBindings(Htop_Action* keys);
 
 extern int Platform_numberOfFields;
-extern char* Process_pidFormat;
+
+extern char Process_pidFormat[20];
+
+extern ProcessPidColumn Process_pidColumns[];
 
 int Platform_getUptime();
 
@@ -31,8 +39,6 @@ void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
 int Platform_getMaxPid();
 
-void Process_setupColumnWidths();
-
 double Platform_setCPUValues(Meter* this, int cpu);
 
 void Platform_setMemoryValues(Meter* this);