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Abstract htop main function to allow for a platform binary 

One review request relating to the PCP platform is to have
a clearly separate binary from the regular htop so that we
have no confusion as to what is being requested to run, to
aid debugging, and a bunch of other good reasons.

This commit renames htop.c to CommandLine.c and provides a
minimal htop main function for 'native' platforms to use.
The PCP version of this will setup libpcp.so and then call
the same CommandLine_run function as regular htop.

Related to https://github.com/htop-dev/htop/pull/536
This commit is contained in:
Nathan Scott 2021-03-23 15:04:54 +11:00
parent 5ef3c26168
commit 36389fb0da
4 changed files with 399 additions and 359 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

372
CommandLine.c Normal file
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@ -0,0 +1,372 @@
/*
htop - CommandLine.c
(C) 2004-2011 Hisham H. Muhammad
(C) 2020-2021 htop dev team
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "CommandLine.h"
#include <assert.h>
#include <getopt.h>
#include <locale.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "Action.h"
#include "CRT.h"
#include "Hashtable.h"
#include "Header.h"
#include "IncSet.h"
#include "MainPanel.h"
#include "MetersPanel.h"
#include "Panel.h"
#include "Platform.h"
#include "Process.h"
#include "ProcessList.h"
#include "ProvideCurses.h"
#include "ScreenManager.h"
#include "Settings.h"
#include "UsersTable.h"
#include "XUtils.h"
static void printVersionFlag(const char* name) {
printf("%s " VERSION "\n", name);
}
static void printHelpFlag(const char* name) {
printf("%s " VERSION "\n"
COPYRIGHT "\n"
"Released under the GNU GPLv2.\n\n"
"-C --no-color Use a monochrome color scheme\n"
"-d --delay=DELAY Set the delay between updates, in tenths of seconds\n"
"-F --filter=FILTER Show only the commands matching the given filter\n"
"-h --help Print this help screen\n"
"-H --highlight-changes[=DELAY] Highlight new and old processes\n"
"-M --no-mouse Disable the mouse\n"
"-p --pid=PID[,PID,PID...] Show only the given PIDs\n"
"-s --sort-key=COLUMN Sort by COLUMN in list view (try --sort-key=help for a list)\n"
"-t --tree Show the tree view (can be combined with -s)\n"
"-u --user[=USERNAME] Show only processes for a given user (or $USER)\n"
"-U --no-unicode Do not use unicode but plain ASCII\n"
"-V --version Print version info\n", name);
Platform_longOptionsUsage(name);
printf("\n"
"Long options may be passed with a single dash.\n\n"
"Press F1 inside %s for online help.\n"
"See 'man %s' for more information.\n", name, name);
}
// ----------------------------------------
typedef struct CommandLineSettings_ {
Hashtable* pidMatchList;
char* commFilter;
uid_t userId;
int sortKey;
int delay;
bool useColors;
bool enableMouse;
bool treeView;
bool allowUnicode;
bool highlightChanges;
int highlightDelaySecs;
} CommandLineSettings;
static CommandLineSettings parseArguments(const char* program, int argc, char** argv) {
CommandLineSettings flags = {
.pidMatchList = NULL,
.commFilter = NULL,
.userId = (uid_t)-1, // -1 is guaranteed to be an invalid uid_t (see setreuid(2))
.sortKey = 0,
.delay = -1,
.useColors = true,
.enableMouse = true,
.treeView = false,
.allowUnicode = true,
.highlightChanges = false,
.highlightDelaySecs = -1,
};
const struct option long_opts[] =
{
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"delay", required_argument, 0, 'd'},
{"sort-key", required_argument, 0, 's'},
{"user", optional_argument, 0, 'u'},
{"no-color", no_argument, 0, 'C'},
{"no-colour", no_argument, 0, 'C'},
{"no-mouse", no_argument, 0, 'M'},
{"no-unicode", no_argument, 0, 'U'},
{"tree", no_argument, 0, 't'},
{"pid", required_argument, 0, 'p'},
{"filter", required_argument, 0, 'F'},
{"highlight-changes", optional_argument, 0, 'H'},
PLATFORM_LONG_OPTIONS
{0,0,0,0}
};
int opt, opti=0;
/* Parse arguments */
while ((opt = getopt_long(argc, argv, "hVMCs:td:u::Up:F:H::", long_opts, &opti))) {
if (opt == EOF) break;
switch (opt) {
case 'h':
printHelpFlag(program);
exit(0);
case 'V':
printVersionFlag(program);
exit(0);
case 's':
assert(optarg); /* please clang analyzer, cause optarg can be NULL in the 'u' case */
if (String_eq(optarg, "help")) {
for (int j = 1; j < LAST_PROCESSFIELD; j++) {
const char* name = Process_fields[j].name;
const char* description = Process_fields[j].description;
if (name) printf("%19s %s\n", name, description);
}
exit(0);
}
flags.sortKey = 0;
for (int j = 1; j < LAST_PROCESSFIELD; j++) {
if (Process_fields[j].name == NULL)
continue;
if (String_eq(optarg, Process_fields[j].name)) {
flags.sortKey = j;
break;
}
}
if (flags.sortKey == 0) {
fprintf(stderr, "Error: invalid column \"%s\".\n", optarg);
exit(1);
}
break;
case 'd':
if (sscanf(optarg, "%16d", &(flags.delay)) == 1) {
if (flags.delay < 1) flags.delay = 1;
if (flags.delay > 100) flags.delay = 100;
} else {
fprintf(stderr, "Error: invalid delay value \"%s\".\n", optarg);
exit(1);
}
break;
case 'u':
{
const char *username = optarg;
if (!username && optind < argc && argv[optind] != NULL &&
(argv[optind][0] != '\0' && argv[optind][0] != '-')) {
username = argv[optind++];
}
if (!username) {
flags.userId = geteuid();
} else if (!Action_setUserOnly(username, &(flags.userId))) {
fprintf(stderr, "Error: invalid user \"%s\".\n", username);
exit(1);
}
break;
}
case 'C':
flags.useColors = false;
break;
case 'M':
flags.enableMouse = false;
break;
case 'U':
flags.allowUnicode = false;
break;
case 't':
flags.treeView = true;
break;
case 'p': {
assert(optarg); /* please clang analyzer, cause optarg can be NULL in the 'u' case */
char* argCopy = xStrdup(optarg);
char* saveptr;
const char* pid = strtok_r(argCopy, ",", &saveptr);
if (!flags.pidMatchList) {
flags.pidMatchList = Hashtable_new(8, false);
}
while(pid) {
unsigned int num_pid = atoi(pid);
// deepcode ignore CastIntegerToAddress: we just want a non-NUll pointer here
Hashtable_put(flags.pidMatchList, num_pid, (void *) 1);
pid = strtok_r(NULL, ",", &saveptr);
}
free(argCopy);
break;
}
case 'F': {
assert(optarg);
free_and_xStrdup(&flags.commFilter, optarg);
break;
}
case 'H': {
const char *delay = optarg;
if (!delay && optind < argc && argv[optind] != NULL &&
(argv[optind][0] != '\0' && argv[optind][0] != '-')) {
delay = argv[optind++];
}
if (delay) {
if (sscanf(delay, "%16d", &(flags.highlightDelaySecs)) == 1) {
if (flags.highlightDelaySecs < 1)
flags.highlightDelaySecs = 1;
} else {
fprintf(stderr, "Error: invalid highlight delay value \"%s\".\n", delay);
exit(1);
}
}
flags.highlightChanges = true;
break;
}
default:
if (Platform_getLongOption(opt, argc, argv) == false)
exit(1);
break;
}
}
return flags;
}
static void millisleep(unsigned long millisec) {
struct timespec req = {
.tv_sec = 0,
.tv_nsec = millisec * 1000000L
};
while(nanosleep(&req,&req)==-1) {
continue;
}
}
static void setCommFilter(State* state, char** commFilter) {
ProcessList* pl = state->pl;
IncSet* inc = state->mainPanel->inc;
IncSet_setFilter(inc, *commFilter);
pl->incFilter = IncSet_filter(inc);
free(*commFilter);
*commFilter = NULL;
}
int CommandLine_run(const char* name, int argc, char** argv) {
/* initialize locale */
const char* lc_ctype;
if ((lc_ctype = getenv("LC_CTYPE")) || (lc_ctype = getenv("LC_ALL")))
setlocale(LC_CTYPE, lc_ctype);
else
setlocale(LC_CTYPE, "");
CommandLineSettings flags = parseArguments(name, argc, argv);
Platform_init();
Process_setupColumnWidths();
UsersTable* ut = UsersTable_new();
ProcessList* pl = ProcessList_new(ut, flags.pidMatchList, flags.userId);
Settings* settings = Settings_new(pl->cpuCount);
pl->settings = settings;
Header* header = Header_new(pl, settings, 2);
Header_populateFromSettings(header);
if (flags.delay != -1)
settings->delay = flags.delay;
if (!flags.useColors)
settings->colorScheme = COLORSCHEME_MONOCHROME;
if (!flags.enableMouse)
settings->enableMouse = false;
if (flags.treeView)
settings->treeView = true;
if (flags.highlightChanges)
settings->highlightChanges = true;
if (flags.highlightDelaySecs != -1)
settings->highlightDelaySecs = flags.highlightDelaySecs;
if (flags.sortKey > 0) {
// -t -s <key> means "tree sorted by key"
// -s <key> means "list sorted by key" (previous existing behavior)
if (!flags.treeView) {
settings->treeView = false;
}
Settings_setSortKey(settings, flags.sortKey);
}
CRT_init(settings, flags.allowUnicode);
MainPanel* panel = MainPanel_new();
ProcessList_setPanel(pl, (Panel*) panel);
MainPanel_updateTreeFunctions(panel, settings->treeView);
State state = {
.settings = settings,
.ut = ut,
.pl = pl,
.mainPanel = panel,
.header = header,
.pauseProcessUpdate = false,
.hideProcessSelection = false,
};
MainPanel_setState(panel, &state);
if (flags.commFilter)
setCommFilter(&state, &(flags.commFilter));
ScreenManager* scr = ScreenManager_new(header, settings, &state, true);
ScreenManager_add(scr, (Panel*) panel, -1);
ProcessList_scan(pl, false);
millisleep(75);
ProcessList_scan(pl, false);
if (settings->allBranchesCollapsed)
ProcessList_collapseAllBranches(pl);
ScreenManager_run(scr, NULL, NULL);
attron(CRT_colors[RESET_COLOR]);
mvhline(LINES-1, 0, ' ', COLS);
attroff(CRT_colors[RESET_COLOR]);
refresh();
Platform_done();
CRT_done();
if (settings->changed) {
int r = Settings_write(settings);
if (r < 0)
fprintf(stderr, "Can not save configuration to %s: %s\n", settings->filename, strerror(-r));
}
Header_delete(header);
ProcessList_delete(pl);
ScreenManager_delete(scr);
MetersPanel_cleanup();
UsersTable_delete(ut);
Settings_delete(settings);
if (flags.pidMatchList)
Hashtable_delete(flags.pidMatchList);
return 0;
}

14
CommandLine.h Normal file
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@ -0,0 +1,14 @@
#ifndef HEADER_CommandLine
#define HEADER_CommandLine
/*
htop - CommandLine.h
(C) 2004-2011 Hisham H. Muhammad
(C) 2020-2021 htop dev team
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
int CommandLine_run(const char* name, int argc, char** argv);
#endif

14
Makefile.am
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@ -1,5 +1,3 @@
bin_PROGRAMS = htop
dist_man_MANS = htop.1
EXTRA_DIST = \
$(dist_man_MANS) \
@ -32,6 +30,7 @@ myhtopsources = \
ClockMeter.c \
ColorsPanel.c \
ColumnsPanel.c \
CommandLine.c \
CommandScreen.c \
Compat.c \
CPUMeter.c \
@ -88,6 +87,7 @@ myhtopheaders = \
ClockMeter.h \
ColorsPanel.h \
ColumnsPanel.h \
CommandLine.h \
CommandScreen.h \
Compat.h \
DateMeter.h \
@ -171,6 +171,7 @@ linux_platform_sources = \
if HTOP_LINUX
AM_LDFLAGS += -rdynamic
myhtopplatprogram = htop
myhtopplatheaders = $(linux_platform_headers)
myhtopplatsources = $(linux_platform_sources)
endif
@ -201,6 +202,7 @@ freebsd_platform_sources = \
zfs/ZfsCompressedArcMeter.c
if HTOP_FREEBSD
myhtopplatprogram = htop
myhtopplatheaders = $(freebsd_platform_headers)
myhtopplatsources = $(freebsd_platform_sources)
endif
@ -224,6 +226,7 @@ dragonflybsd_platform_sources = \
generic/uname.c
if HTOP_DRAGONFLYBSD
myhtopplatprogram = htop
myhtopplatheaders = $(dragonflybsd_platform_headers)
myhtopplatsources = $(dragonflybsd_platform_sources)
endif
@ -247,6 +250,7 @@ openbsd_platform_sources = \
openbsd/Platform.c
if HTOP_OPENBSD
myhtopplatprogram = htop
myhtopplatheaders = $(openbsd_platform_headers)
myhtopplatsources = $(openbsd_platform_sources)
endif
@ -278,6 +282,7 @@ darwin_platform_sources = \
if HTOP_DARWIN
AM_LDFLAGS += -framework IOKit -framework CoreFoundation
myhtopplatprogram = htop
myhtopplatheaders = $(darwin_platform_headers)
myhtopplatsources = $(darwin_platform_sources)
endif
@ -306,6 +311,7 @@ solaris_platform_sources = \
zfs/ZfsCompressedArcMeter.c
if HTOP_SOLARIS
myhtopplatprogram = htop
myhtopplatheaders = $(solaris_platform_headers)
myhtopplatsources = $(solaris_platform_sources)
endif
@ -325,13 +331,15 @@ unsupported_platform_sources = \
unsupported/UnsupportedProcessList.c
if HTOP_UNSUPPORTED
myhtopplatprogram = htop
myhtopplatsources = $(unsupported_platform_sources)
myhtopplatheaders = $(unsupported_platform_headers)
endif
# ----
htop_SOURCES = $(myhtopheaders) $(myhtopplatheaders) $(myhtopsources) $(myhtopplatsources)
bin_PROGRAMS = $(myhtopplatprogram)
htop_SOURCES = $(myhtopheaders) $(myhtopplatheaders) $(myhtopsources) $(myhtopplatsources)
nodist_htop_SOURCES = config.h
target:

358
htop.c
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@ -8,363 +8,9 @@ in the source distribution for its full text.
#include "config.h" // IWYU pragma: keep
#include <assert.h>
#include <getopt.h>
#include <locale.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "CommandLine.h"
#include "Action.h"
#include "CRT.h"
#include "Hashtable.h"
#include "Header.h"
#include "IncSet.h"
#include "MainPanel.h"
#include "MetersPanel.h"
#include "Panel.h"
#include "Platform.h"
#include "Process.h"
#include "ProcessList.h"
#include "ProvideCurses.h"
#include "ScreenManager.h"
#include "Settings.h"
#include "UsersTable.h"
#include "XUtils.h"
static void printVersionFlag(const char* name) {
printf("%s " VERSION "\n", name);
}
static void printHelpFlag(const char* name) {
printf("%s " VERSION "\n"
COPYRIGHT "\n"
"Released under the GNU GPLv2.\n\n"
"-C --no-color Use a monochrome color scheme\n"
"-d --delay=DELAY Set the delay between updates, in tenths of seconds\n"
"-F --filter=FILTER Show only the commands matching the given filter\n"
"-h --help Print this help screen\n"
"-H --highlight-changes[=DELAY] Highlight new and old processes\n"
"-M --no-mouse Disable the mouse\n"
"-p --pid=PID[,PID,PID...] Show only the given PIDs\n"
"-s --sort-key=COLUMN Sort by COLUMN in list view (try --sort-key=help for a list)\n"
"-t --tree Show the tree view (can be combined with -s)\n"
"-u --user[=USERNAME] Show only processes for a given user (or $USER)\n"
"-U --no-unicode Do not use unicode but plain ASCII\n"
"-V --version Print version info\n", name);
Platform_longOptionsUsage(name);
printf("\n"
"Long options may be passed with a single dash.\n\n"
"Press F1 inside %s for online help.\n"
"See 'man %s' for more information.\n", name, name);
}
// ----------------------------------------
typedef struct CommandLineSettings_ {
Hashtable* pidMatchList;
char* commFilter;
uid_t userId;
int sortKey;
int delay;
bool useColors;
bool enableMouse;
bool treeView;
bool allowUnicode;
bool highlightChanges;
int highlightDelaySecs;
} CommandLineSettings;
static CommandLineSettings parseArguments(const char* program, int argc, char** argv) {
CommandLineSettings flags = {
.pidMatchList = NULL,
.commFilter = NULL,
.userId = (uid_t)-1, // -1 is guaranteed to be an invalid uid_t (see setreuid(2))
.sortKey = 0,
.delay = -1,
.useColors = true,
.enableMouse = true,
.treeView = false,
.allowUnicode = true,
.highlightChanges = false,
.highlightDelaySecs = -1,
};
const struct option long_opts[] =
{
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"delay", required_argument, 0, 'd'},
{"sort-key", required_argument, 0, 's'},
{"user", optional_argument, 0, 'u'},
{"no-color", no_argument, 0, 'C'},
{"no-colour", no_argument, 0, 'C'},
{"no-mouse", no_argument, 0, 'M'},
{"no-unicode", no_argument, 0, 'U'},
{"tree", no_argument, 0, 't'},
{"pid", required_argument, 0, 'p'},
{"filter", required_argument, 0, 'F'},
{"highlight-changes", optional_argument, 0, 'H'},
PLATFORM_LONG_OPTIONS
{0,0,0,0}
};
int opt, opti=0;
/* Parse arguments */
while ((opt = getopt_long(argc, argv, "hVMCs:td:u::Up:F:H::", long_opts, &opti))) {
if (opt == EOF) break;
switch (opt) {
case 'h':
printHelpFlag(program);
exit(0);
case 'V':
printVersionFlag(program);
exit(0);
case 's':
assert(optarg); /* please clang analyzer, cause optarg can be NULL in the 'u' case */
if (String_eq(optarg, "help")) {
for (int j = 1; j < LAST_PROCESSFIELD; j++) {
const char* name = Process_fields[j].name;
const char* description = Process_fields[j].description;
if (name) printf("%19s %s\n", name, description);
}
exit(0);
}
flags.sortKey = 0;
for (int j = 1; j < LAST_PROCESSFIELD; j++) {
if (Process_fields[j].name == NULL)
continue;
if (String_eq(optarg, Process_fields[j].name)) {
flags.sortKey = j;
break;
}
}
if (flags.sortKey == 0) {
fprintf(stderr, "Error: invalid column \"%s\".\n", optarg);
exit(1);
}
break;
case 'd':
if (sscanf(optarg, "%16d", &(flags.delay)) == 1) {
if (flags.delay < 1) flags.delay = 1;
if (flags.delay > 100) flags.delay = 100;
} else {
fprintf(stderr, "Error: invalid delay value \"%s\".\n", optarg);
exit(1);
}
break;
case 'u':
{
const char *username = optarg;
if (!username && optind < argc && argv[optind] != NULL &&
(argv[optind][0] != '\0' && argv[optind][0] != '-')) {
username = argv[optind++];
}
if (!username) {
flags.userId = geteuid();
} else if (!Action_setUserOnly(username, &(flags.userId))) {
fprintf(stderr, "Error: invalid user \"%s\".\n", username);
exit(1);
}
break;
}
case 'C':
flags.useColors = false;
break;
case 'M':
flags.enableMouse = false;
break;
case 'U':
flags.allowUnicode = false;
break;
case 't':
flags.treeView = true;
break;
case 'p': {
assert(optarg); /* please clang analyzer, cause optarg can be NULL in the 'u' case */
char* argCopy = xStrdup(optarg);
char* saveptr;
const char* pid = strtok_r(argCopy, ",", &saveptr);
if (!flags.pidMatchList) {
flags.pidMatchList = Hashtable_new(8, false);
}
while(pid) {
unsigned int num_pid = atoi(pid);
// deepcode ignore CastIntegerToAddress: we just want a non-NUll pointer here
Hashtable_put(flags.pidMatchList, num_pid, (void *) 1);
pid = strtok_r(NULL, ",", &saveptr);
}
free(argCopy);
break;
}
case 'F': {
assert(optarg);
free_and_xStrdup(&flags.commFilter, optarg);
break;
}
case 'H': {
const char *delay = optarg;
if (!delay && optind < argc && argv[optind] != NULL &&
(argv[optind][0] != '\0' && argv[optind][0] != '-')) {
delay = argv[optind++];
}
if (delay) {
if (sscanf(delay, "%16d", &(flags.highlightDelaySecs)) == 1) {
if (flags.highlightDelaySecs < 1)
flags.highlightDelaySecs = 1;
} else {
fprintf(stderr, "Error: invalid highlight delay value \"%s\".\n", delay);
exit(1);
}
}
flags.highlightChanges = true;
break;
}
default:
if (Platform_getLongOption(opt, argc, argv) == false)
exit(1);
break;
}
}
return flags;
}
static void millisleep(unsigned long millisec) {
struct timespec req = {
.tv_sec = 0,
.tv_nsec = millisec * 1000000L
};
while(nanosleep(&req,&req)==-1) {
continue;
}
}
static void setCommFilter(State* state, char** commFilter) {
ProcessList* pl = state->pl;
IncSet* inc = state->mainPanel->inc;
IncSet_setFilter(inc, *commFilter);
pl->incFilter = IncSet_filter(inc);
free(*commFilter);
*commFilter = NULL;
}
int main(int argc, char** argv) {
/* initialize locale */
const char* lc_ctype;
if ((lc_ctype = getenv("LC_CTYPE")) || (lc_ctype = getenv("LC_ALL")))
setlocale(LC_CTYPE, lc_ctype);
else
setlocale(LC_CTYPE, "");
CommandLineSettings flags = parseArguments(PACKAGE, argc, argv);
Platform_init();
Process_setupColumnWidths();
UsersTable* ut = UsersTable_new();
ProcessList* pl = ProcessList_new(ut, flags.pidMatchList, flags.userId);
Settings* settings = Settings_new(pl->cpuCount);
pl->settings = settings;
Header* header = Header_new(pl, settings, 2);
Header_populateFromSettings(header);
if (flags.delay != -1)
settings->delay = flags.delay;
if (!flags.useColors)
settings->colorScheme = COLORSCHEME_MONOCHROME;
if (!flags.enableMouse)
settings->enableMouse = false;
if (flags.treeView)
settings->treeView = true;
if (flags.highlightChanges)
settings->highlightChanges = true;
if (flags.highlightDelaySecs != -1)
settings->highlightDelaySecs = flags.highlightDelaySecs;
if (flags.sortKey > 0) {
// -t -s <key> means "tree sorted by key"
// -s <key> means "list sorted by key" (previous existing behavior)
if (!flags.treeView) {
settings->treeView = false;
}
Settings_setSortKey(settings, flags.sortKey);
}
CRT_init(settings, flags.allowUnicode);
MainPanel* panel = MainPanel_new();
ProcessList_setPanel(pl, (Panel*) panel);
MainPanel_updateTreeFunctions(panel, settings->treeView);
State state = {
.settings = settings,
.ut = ut,
.pl = pl,
.mainPanel = panel,
.header = header,
.pauseProcessUpdate = false,
.hideProcessSelection = false,
};
MainPanel_setState(panel, &state);
if (flags.commFilter)
setCommFilter(&state, &(flags.commFilter));
ScreenManager* scr = ScreenManager_new(header, settings, &state, true);
ScreenManager_add(scr, (Panel*) panel, -1);
ProcessList_scan(pl, false);
millisleep(75);
ProcessList_scan(pl, false);
if (settings->allBranchesCollapsed)
ProcessList_collapseAllBranches(pl);
ScreenManager_run(scr, NULL, NULL);
attron(CRT_colors[RESET_COLOR]);
mvhline(LINES-1, 0, ' ', COLS);
attroff(CRT_colors[RESET_COLOR]);
refresh();
Platform_done();
CRT_done();
if (settings->changed) {
int r = Settings_write(settings);
if (r < 0)
fprintf(stderr, "Can not save configuration to %s: %s\n", settings->filename, strerror(-r));
}
Header_delete(header);
ProcessList_delete(pl);
ScreenManager_delete(scr);
MetersPanel_cleanup();
UsersTable_delete(ut);
Settings_delete(settings);
if (flags.pidMatchList)
Hashtable_delete(flags.pidMatchList);
return 0;
return CommandLine_run(PACKAGE, argc, argv);
}