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src.rivoreo.one / htop / d9931d678e19621b4f2a45e0c3fb8ea51689dc4c / . / Process.c
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/*
htop - Process.c
(C) 2004-2015 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "Process.h"
#include "Settings.h"
#include "CRT.h"
#include "StringUtils.h"
#include "RichString.h"
#include "Platform.h"
#include <sys/param.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <pwd.h>
#include <time.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#ifdef MAJOR_IN_MKDEV
#include <sys/mkdev.h>
#elif defined(MAJOR_IN_SYSMACROS) || \
(defined(HAVE_SYS_SYSMACROS_H) && HAVE_SYS_SYSMACROS_H)
#include <sys/sysmacros.h>
#endif
#ifdef HAVE_LIBNCURSESW
#include <limits.h>
#include <wchar.h>
#endif
#ifdef __ANDROID__
#define SYS_ioprio_get __NR_ioprio_get
#define SYS_ioprio_set __NR_ioprio_set
#endif
/*{
#include "config.h"
#include "Object.h"
#include <sys/types.h>
#include <stdbool.h>
#define PROCESS_FLAG_IO 0x0001
typedef enum {
HTOP_NULL_PROCESSFIELD = 0,
HTOP_PID_FIELD = 1,
HTOP_NAME_FIELD = 2,
HTOP_STATE_FIELD = 3,
HTOP_PPID_FIELD = 4,
HTOP_PGRP_FIELD = 5,
HTOP_SESSION_FIELD = 6,
HTOP_TTY_FIELD = 7,
HTOP_TPGID_FIELD = 8,
HTOP_MINFLT_FIELD = 10,
HTOP_MAJFLT_FIELD = 12,
HTOP_PRIORITY_FIELD = 18,
HTOP_NICE_FIELD = 19,
HTOP_STARTTIME_FIELD = 21,
HTOP_PROCESSOR_FIELD = 38,
HTOP_M_SIZE_FIELD = 39,
HTOP_M_RESIDENT_FIELD = 40,
HTOP_EFFECTIVE_UID_FIELD = 46,
HTOP_PERCENT_CPU_FIELD = 47,
HTOP_PERCENT_MEM_FIELD = 48,
HTOP_EFFECTIVE_USER_FIELD = 49,
HTOP_TIME_FIELD = 50,
HTOP_NLWP_FIELD = 51,
HTOP_TGID_FIELD = 52,
HTOP_REAL_UID_FIELD = 53,
HTOP_REAL_USER_FIELD = 54,
HTOP_COMM_FIELD = 99
} ProcessField;
typedef struct ProcessPidColumn_ {
int id;
char* label;
} ProcessPidColumn;
typedef struct Process_ {
Object super;
struct Settings_* settings;
bool updated;
bool tag;
bool showChildren;
bool show;
bool seen_in_tree_loop;
int indent;
char state;
pid_t pid;
pid_t ppid;
pid_t tgid;
char *name;
char* comm;
int commLen;
int argv0_length;
unsigned int pgrp;
unsigned int session;
dev_t tty_nr;
int tpgid;
uid_t ruid;
uid_t euid;
char *real_user;
char *effective_user;
unsigned long long int time;
int processor;
float percent_cpu;
float percent_mem;
long int priority;
long int nice;
long int nlwp;
time_t starttime_ctime;
// In pages
long int m_size;
long int m_resident;
int exit_signal;
unsigned long int minflt;
unsigned long int majflt;
} Process;
typedef struct ProcessFieldData_ {
const char* name;
const char* title;
const char* description;
int flags;
} ProcessFieldData;
// Implemented in platform-specific code:
void Process_writeField(Process* this, RichString* str, ProcessField field);
long Process_compare(const void* v1, const void* v2);
bool Process_isKernelProcess(const Process *);
bool Process_isExtraThreadProcess(const Process *);
char **Process_getKernelStackTrace(const Process *);
extern ProcessFieldData Process_fields[];
extern ProcessPidColumn Process_pidColumns[];
extern char Process_pidFormat[20];
typedef Process*(*Process_New)(struct Settings_*);
typedef void (*Process_WriteField)(Process*, RichString*, ProcessField);
typedef bool (*ProcessSendSignalFunction)(const Process *, int);
typedef struct ProcessClass_ {
ObjectClass super;
Process_WriteField writeField;
ProcessSendSignalFunction sendSignal;
} ProcessClass;
#define As_Process(this_) ((ProcessClass*)((this_)->super.klass))
#if defined __OpenBSD__ && defined PID_AND_MAIN_THREAD_ID_DIFFER
#define Process_getParentPid(process_) ((process_)->tgid == (process_)->pid || (process_)->settings->hide_high_level_processes ? (process_)->ppid : (process_)->tgid)
#define Process_isChildOf(process_, pid_) ((process_)->tgid == (pid_) || (((process_)->tgid == (process_)->pid || (process_)->settings->hide_high_level_processes) && (process_)->ppid == (pid_)))
#else
#define Process_getParentPid(process_) ((process_)->tgid == (process_)->pid ? (process_)->ppid : (process_)->tgid)
#define Process_isChildOf(process_, pid_) ((process_)->tgid == (pid_) || ((process_)->tgid == (process_)->pid && (process_)->ppid == (pid_)))
#endif
#define Process_sortState(state) ((state) == 'I' ? 0x100 : (state))
}*/
#ifndef NODEV
#ifdef __INTERIX
#define NODEV ((dev_t)0)
#else
#define NODEV ((dev_t)-1)
#endif
#endif
static int Process_getuid = -1;
char Process_pidFormat[20] = "%7d ";
static char Process_titleBuffer[20][20];
void Process_setupColumnWidths() {
int maxPid = Platform_getMaxPid();
if (maxPid == -1) return;
int digits = ceil(log10(maxPid));
assert(digits < 20);
for (int i = 0; Process_pidColumns[i].label; i++) {
assert(i < 20);
xSnprintf(Process_titleBuffer[i], 20, "%*s ", digits, Process_pidColumns[i].label);
Process_fields[Process_pidColumns[i].id].title = Process_titleBuffer[i];
}
xSnprintf(Process_pidFormat, sizeof(Process_pidFormat), "%%%dd ", digits);
}
void Process_humanNumber(RichString* str, unsigned long number, bool coloring) {
char buffer[11];
int len;
int largeNumberColor = CRT_colors[HTOP_LARGE_NUMBER_COLOR];
int processMegabytesColor = CRT_colors[HTOP_PROCESS_MEGABYTES_COLOR];
int processColor = CRT_colors[HTOP_PROCESS_COLOR];
if (!coloring) {
largeNumberColor = CRT_colors[HTOP_PROCESS_COLOR];
processMegabytesColor = CRT_colors[HTOP_PROCESS_COLOR];
}
if(number >= (10 * ONE_DECIMAL_M)) {
#ifdef __LP64__
if(number >= (100 * ONE_DECIMAL_G)) {
len = snprintf(buffer, sizeof buffer, "%4luT ", number / ONE_BINARY_G);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
} else if (number >= (1000 * ONE_DECIMAL_M)) {
len = snprintf(buffer, sizeof buffer, "%4.1lfT ", (double)number / ONE_BINARY_G);
if((size_t)len > sizeof buffer - 1) {
strcpy(buffer, "***** ");
len = 6;
}
RichString_appendn(str, largeNumberColor, buffer, len);
return;
}
#endif
if(number >= (100 * ONE_DECIMAL_M)) {
len = snprintf(buffer, sizeof buffer, "%4luG ", number / ONE_BINARY_M);
if((size_t)len > sizeof buffer - 1) {
strcpy(buffer, "***** ");
len = 6;
}
RichString_appendn(str, largeNumberColor, buffer, len);
return;
}
len = snprintf(buffer, sizeof buffer, "%4.1lfG ", (double)number / ONE_BINARY_M);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
} else if (number >= 10000) {
len = snprintf(buffer, sizeof buffer, "%4luM ", number / ONE_BINARY_K);
RichString_appendn(str, processMegabytesColor, buffer, len);
return;
} else if (number >= 1000) {
len = snprintf(buffer, sizeof buffer, "%1lu", number / 1000);
RichString_appendn(str, processMegabytesColor, buffer, len);
number %= 1000;
len = snprintf(buffer, sizeof buffer, "%03luK ", number);
RichString_appendn(str, processColor, buffer, len);
return;
}
len = snprintf(buffer, sizeof buffer, "%4luK ", number);
RichString_appendn(str, processColor, buffer, len);
}
void Process_colorNumber(RichString* str, unsigned long long number, bool coloring) {
char buffer[13];
int largeNumberColor = CRT_colors[HTOP_LARGE_NUMBER_COLOR];
int processMegabytesColor = CRT_colors[HTOP_PROCESS_MEGABYTES_COLOR];
int processColor = CRT_colors[HTOP_PROCESS_COLOR];
int processShadowColor = CRT_colors[HTOP_PROCESS_SHADOW_COLOR];
if (!coloring) {
largeNumberColor = CRT_colors[HTOP_PROCESS_COLOR];
processMegabytesColor = CRT_colors[HTOP_PROCESS_COLOR];
processShadowColor = CRT_colors[HTOP_PROCESS_COLOR];
}
if ((long long) number == -1LL) {
int len = snprintf(buffer, sizeof buffer, " no perm ");
RichString_appendn(str, CRT_colors[HTOP_PROCESS_SHADOW_COLOR], buffer, len);
} else if (number > 10000000000ULL) {
// Allow the trailing space be truncated by snprintf(3)
int len = snprintf(buffer, sizeof buffer, "%10lluk ", number / 1000);
if(len > 13) {
RichString_appendn(str, largeNumberColor, ">9999999999k", 12);
} else {
int large_part_len = len > 12 ? 5 : 4;
RichString_appendn(str, largeNumberColor, buffer, large_part_len);
RichString_appendn(str, processMegabytesColor, buffer + large_part_len, 3);
RichString_appendn(str, processColor, buffer + large_part_len + 3, len > 12 ? 4 : 5);
}
} else {
xSnprintf(buffer, sizeof buffer, "%11llu ", number);
RichString_appendn(str, largeNumberColor, buffer, 2);
RichString_appendn(str, processMegabytesColor, buffer+2, 3);
RichString_appendn(str, processColor, buffer+5, 3);
RichString_appendn(str, processShadowColor, buffer+8, 4);
}
}
void Process_printTime(RichString* str, unsigned long long totalHundredths) {
unsigned long long totalSeconds = totalHundredths / 100;
unsigned long long hours = totalSeconds / 3600;
int minutes = (totalSeconds / 60) % 60;
int seconds = totalSeconds % 60;
int hundredths = totalHundredths - (totalSeconds * 100);
char buffer[23];
if (hours >= 100) {
xSnprintf(buffer, sizeof buffer, "%7lluh ", hours);
RichString_append(str, CRT_colors[HTOP_LARGE_NUMBER_COLOR], buffer);
} else {
if (hours) {
xSnprintf(buffer, sizeof buffer, "%2lluh", hours);
RichString_append(str, CRT_colors[HTOP_LARGE_NUMBER_COLOR], buffer);
xSnprintf(buffer, sizeof buffer, "%02d:%02d ", minutes, seconds);
} else {
xSnprintf(buffer, sizeof buffer, "%2d:%02d.%02d ", minutes, seconds, hundredths);
}
RichString_append(str, CRT_colors[HTOP_DEFAULT_COLOR], buffer);
}
}
static inline void Process_writeCommand(Process* this, int attr, int baseattr, RichString* str) {
int start = RichString_size(str), finish = 0;
char* comm = this->comm;
if (this->settings->highlightBaseName || !this->settings->showProgramPath) {
int i, basename = 0;
for (i = 0; i < this->argv0_length; i++) {
if (comm[i] == '/') {
basename = i + 1;
} else if (comm[i] == ':') {
finish = i + 1;
break;
}
}
if (!finish) {
if (this->settings->showProgramPath)
start += basename;
else
comm += basename;
finish = this->argv0_length - basename;
}
finish += start - 1;
}
RichString_append(str, attr, comm);
if (this->settings->highlightBaseName)
RichString_setAttrn(str, baseattr, start, finish);
}
void Process_outputRate(RichString* str, char* buffer, int n, double rate, int coloring) {
int largeNumberColor = CRT_colors[HTOP_LARGE_NUMBER_COLOR];
int processMegabytesColor = CRT_colors[HTOP_PROCESS_MEGABYTES_COLOR];
int processColor = CRT_colors[HTOP_PROCESS_COLOR];
if (!coloring) {
largeNumberColor = CRT_colors[HTOP_PROCESS_COLOR];
processMegabytesColor = CRT_colors[HTOP_PROCESS_COLOR];
}
if (rate == -1) {
int len = snprintf(buffer, n, " no perm ");
RichString_appendn(str, CRT_colors[HTOP_PROCESS_SHADOW_COLOR], buffer, len);
} else if (rate < ONE_BINARY_K) {
int len = snprintf(buffer, n, "%8.2fB/s ", rate);
RichString_appendn(str, processColor, buffer, len);
} else if (rate < ONE_BINARY_K * ONE_BINARY_K) {
int len = snprintf(buffer, n, "%6.1fKiB/s ", rate / ONE_BINARY_K);
RichString_appendn(str, processColor, buffer, len);
} else if (rate < ONE_BINARY_K * ONE_BINARY_K * ONE_BINARY_K) {
int len = snprintf(buffer, n, "%6.1fMiB/s ", rate / ONE_BINARY_K / ONE_BINARY_K);
RichString_appendn(str, processMegabytesColor, buffer, len);
} else {
int len = snprintf(buffer, n, "%6.1fGiB/s ", rate / ONE_BINARY_K / ONE_BINARY_K / ONE_BINARY_K);
RichString_appendn(str, largeNumberColor, buffer, len);
}
}
static void copy_fixed_width_field(char *buffer, size_t buffer_size, const char *s, int width) {
assert(buffer_size > (size_t)width);
#ifdef HAVE_LIBNCURSESW
wchar_t wcs[width + 1];
int truncate_count = 0;
do {
size_t wc_count = mbstowcs(wcs, s, width + 1 - truncate_count);
if(wc_count != (size_t)-1) {
char mb_buffer[MB_LEN_MAX];
size_t out_i = 0;
for(size_t wcs_i = 0; wcs_i < wc_count && width > 1; wcs_i++) {
int mb_len = wctomb(mb_buffer, wcs[wcs_i]);
if(mb_len < 0 || out_i + mb_len + 1 >= buffer_size) break;
int cw = wcwidth(wcs[wcs_i]);
if(cw < 0) {
width--;
buffer[out_i++] = '?';
} else {
width -= cw;
if(width < 1) break;
memcpy(buffer + out_i, mb_buffer, mb_len);
out_i += mb_len;
}
}
if(out_i > 0) {
if(out_i + width >= buffer_size) out_i = buffer_size - width - 1;
memset(buffer + out_i, ' ', width);
buffer[out_i + width] = 0;
return;
}
break;
}
} while(++truncate_count < width + 1);
#endif
xSnprintf(buffer, buffer_size, "%-*s ", width, s);
if(buffer[width]) {
buffer[width - 1] = ' ';
buffer[width] = 0;
}
}
void Process_writeField(Process* this, RichString* str, ProcessField field) {
char buffer[256]; buffer[255] = '\0';
int attr = CRT_colors[HTOP_DEFAULT_COLOR];
int baseattr = CRT_colors[HTOP_PROCESS_BASENAME_COLOR];
int n = sizeof(buffer);
bool coloring = this->settings->highlightMegabytes;
switch (field) {
struct tm tm;
case HTOP_PERCENT_CPU_FIELD:
if (this->percent_cpu > 999.9) {
xSnprintf(buffer, n, "%4u ", (unsigned int)this->percent_cpu);
} else if (this->percent_cpu > 99.9) {
xSnprintf(buffer, n, "%3u. ", (unsigned int)this->percent_cpu);
} else {
xSnprintf(buffer, n, "%4.1f ", this->percent_cpu);
}
break;
case HTOP_PERCENT_MEM_FIELD:
if (this->percent_mem > 99.9) {
xSnprintf(buffer, n, "100. ");
} else {
xSnprintf(buffer, n, "%4.1f ", this->percent_mem);
}
break;
case HTOP_NAME_FIELD:
copy_fixed_width_field(buffer, n, this->name, 16);
break;
case HTOP_COMM_FIELD:
if (this->settings->highlightThreads && Process_isExtraThreadProcess(this)) {
attr = CRT_colors[HTOP_PROCESS_THREAD_COLOR];
baseattr = CRT_colors[HTOP_PROCESS_THREAD_BASENAME_COLOR];
} else if(this->settings->highlight_kernel_processes && Process_isKernelProcess(this)) {
attr = CRT_colors[HTOP_PROCESS_KERNEL_PROCESS_COLOR];
baseattr = CRT_colors[HTOP_PROCESS_KERNEL_PROCESS_COLOR];
}
if (!this->settings->treeView || this->indent == 0) {
Process_writeCommand(this, attr, baseattr, str);
return;
} else {
char* buf = buffer;
int maxIndent = 0;
bool lastItem = (this->indent < 0);
int indent = (this->indent < 0 ? -this->indent : this->indent);
for (int i = 0; i < 32; i++) if (indent & (1U << i)) maxIndent = i+1;
for (int i = 0; i < maxIndent - 1; i++) {
int written, ret;
ret = (indent & (1 << i)) ?
snprintf(buf, n, "%s ", CRT_treeStr[TREE_STR_VERT]) : snprintf(buf, n, " ");
written = (ret < 0 || ret >= n) ? n : ret;
buf += written;
n -= written;
}
const char* draw = CRT_treeStr[lastItem ? (this->settings->direction == 1 ? TREE_STR_BEND : TREE_STR_TEND) : TREE_STR_RTEE];
xSnprintf(buf, n, "%s%s ", draw, this->showChildren ? CRT_treeStr[TREE_STR_SHUT] : CRT_treeStr[TREE_STR_OPEN] );
RichString_append(str, CRT_colors[HTOP_PROCESS_TREE_COLOR], buffer);
Process_writeCommand(this, attr, baseattr, str);
return;
}
case HTOP_MAJFLT_FIELD:
Process_colorNumber(str, this->majflt, coloring);
return;
case HTOP_MINFLT_FIELD:
Process_colorNumber(str, this->minflt, coloring);
return;
case HTOP_M_RESIDENT_FIELD:
Process_humanNumber(str, this->m_resident * CRT_page_size_kib, coloring);
return;
case HTOP_M_SIZE_FIELD:
Process_humanNumber(str, this->m_size * CRT_page_size_kib, coloring);
return;
case HTOP_NICE_FIELD:
n = snprintf(buffer, n, "%3ld", this->nice);
assert(n >= 3);
if(n == 3) {
buffer[3] = ' ';
buffer[4] = 0;
}
if(this->nice < 0) attr = CRT_colors[HTOP_PROCESS_HIGH_PRIORITY_COLOR];
else if(this->nice > 0) attr = CRT_colors[HTOP_PROCESS_LOW_PRIORITY_COLOR];
break;
case HTOP_NLWP_FIELD:
xSnprintf(buffer, n, "%4ld ", this->nlwp);
break;
case HTOP_PGRP_FIELD:
xSnprintf(buffer, n, Process_pidFormat, this->pgrp);
break;
case HTOP_PID_FIELD:
xSnprintf(buffer, n, Process_pidFormat, this->pid);
break;
case HTOP_PPID_FIELD:
xSnprintf(buffer, n, Process_pidFormat, this->ppid);
break;
case HTOP_PRIORITY_FIELD:
if(this->priority <= -100) xSnprintf(buffer, n, " RT ");
else xSnprintf(buffer, n, "%3ld ", this->priority);
break;
case HTOP_PROCESSOR_FIELD:
if(this->processor < 0) strcpy(buffer, " - ");
else xSnprintf(buffer, n, "%3d ", Settings_cpuId(this->settings, this->processor));
break;
case HTOP_SESSION_FIELD:
xSnprintf(buffer, n, Process_pidFormat, this->session);
break;
case HTOP_STARTTIME_FIELD:
localtime_r(&this->starttime_ctime, &tm);
n = strftime(buffer, n, (this->starttime_ctime > time(NULL) - 86400) ? "%R " : "%b%d ", &tm);
if(n != 6) {
if(n < 6) memset(buffer + n, ' ', 6 - n);
buffer[6] = 0;
}
break;
case HTOP_STATE_FIELD:
xSnprintf(buffer, n, "%c ", this->state);
switch(this->state) {
case 'R':
case 'O':
attr = CRT_colors[HTOP_PROCESS_R_STATE_COLOR];
break;
case 'D':
attr = CRT_colors[HTOP_PROCESS_D_STATE_COLOR];
break;
case 'Z':
attr = CRT_colors[HTOP_PROCESS_Z_STATE_COLOR];
break;
}
break;
case HTOP_REAL_UID_FIELD:
xSnprintf(buffer, n, "%6d ", (int)this->ruid);
break;
case HTOP_EFFECTIVE_UID_FIELD:
xSnprintf(buffer, n, "%6d ", (int)this->euid);
break;
case HTOP_TIME_FIELD:
Process_printTime(str, this->time);
return;
case HTOP_TGID_FIELD:
xSnprintf(buffer, n, Process_pidFormat, (int)this->tgid);
break;
case HTOP_TPGID_FIELD:
xSnprintf(buffer, n, Process_pidFormat, (int)this->tpgid);
break;
case HTOP_TTY_FIELD:
if(this->tty_nr == NODEV) {
xSnprintf(buffer, n, " ? ");
attr = CRT_colors[HTOP_PROCESS_SHADOW_COLOR];
} else {
xSnprintf(buffer, n, "%3u:%3u ", (unsigned int)major(this->tty_nr), (unsigned int)minor(this->tty_nr));
}
break;
case HTOP_REAL_USER_FIELD:
if (Process_getuid != (int)this->ruid) attr = CRT_colors[HTOP_PROCESS_SHADOW_COLOR];
if (this->real_user) {
xSnprintf(buffer, n, "%-9s ", this->real_user);
} else {
xSnprintf(buffer, n, "%-9d ", (int)this->ruid);
}
goto user_end;
case HTOP_EFFECTIVE_USER_FIELD:
if (Process_getuid != (int)this->euid) attr = CRT_colors[HTOP_PROCESS_SHADOW_COLOR];
if (this->effective_user) {
xSnprintf(buffer, n, "%-9s ", this->effective_user);
} else {
xSnprintf(buffer, n, "%-9d ", (int)this->euid);
}
user_end:
if (buffer[10]) {
buffer[9] = ' ';
buffer[10] = '\0';
}
break;
default:
xSnprintf(buffer, n, "- ");
break;
}
RichString_append(str, attr, buffer);
}
void Process_display(Object* cast, RichString* out) {
Process* this = (Process*) cast;
ProcessField* fields = this->settings->fields;
RichString_prune(out);
for (int i = 0; fields[i]; i++) {
As_Process(this)->writeField(this, out, fields[i]);
}
if (this->settings->shadowOtherUsers && (int)this->ruid != Process_getuid && (int)this->euid != Process_getuid) {
RichString_setAttr(out, CRT_colors[HTOP_PROCESS_SHADOW_COLOR]);
}
if (this->tag) {
RichString_setAttr(out, CRT_colors[HTOP_PROCESS_TAG_COLOR]);
}
assert(out->chlen > 0);
}
void Process_done(Process* this) {
assert (this != NULL);
free(this->name);
free(this->comm);
}
static bool base_Process_sendSignal(const Process *this, int sig) {
return kill(this->pid, sig) == 0;
}
static void Process_inherit(ObjectClass *super_class) {
if(!super_class->display) super_class->display = Process_display;
if(!super_class->compare) super_class->compare = Process_compare;
ProcessClass *class = (ProcessClass *)super_class;
if(!class->writeField) class->writeField = Process_writeField;
if(!class->sendSignal) class->sendSignal = base_Process_sendSignal;
}
ProcessClass Process_class = {
.super = {
.extends = Class(Object),
.inherit = Process_inherit,
.display = Process_display,
.compare = Process_compare
},
.writeField = Process_writeField,
.sendSignal = base_Process_sendSignal
};
void Process_init(Process* this, struct Settings_* settings) {
this->settings = settings;
this->tag = false;
this->showChildren = true;
this->show = true;
this->updated = false;
this->argv0_length = -1;
this->processor = -1;
if (Process_getuid == -1) Process_getuid = getuid();
}
void Process_toggleTag(Process* this) {
this->tag = !this->tag;
}
bool Process_setPriority(Process* this, int priority) {
CRT_dropPrivileges();
int old_prio = getpriority(PRIO_PROCESS, this->pid);
int err = setpriority(PRIO_PROCESS, this->pid, priority);
CRT_restorePrivileges();
if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
this->nice = priority;
}
return (err == 0);
}
bool Process_changePriorityBy(Process* this, int delta) {
return Process_setPriority(this, this->nice + delta);
}
bool Process_sendSignal(const Process *this, int sgn) {
CRT_dropPrivileges();
int r = As_Process(this)->sendSignal(this, sgn);
CRT_restorePrivileges();
return r;
}
long Process_pidCompare(const void* v1, const void* v2) {
const Process *p1 = v1;
const Process *p2 = v2;
return (p1->pid - p2->pid);
}
long Process_compare(const void* v1, const void* v2) {
const Process *p1, *p2;
const Settings *settings = ((const Process *)v1)->settings;
if (settings->direction == 1) {
p1 = v1;
p2 = v2;
} else {
p2 = v1;
p1 = v2;
}
switch (settings->sortKey) {
case HTOP_PERCENT_CPU_FIELD:
return (p2->percent_cpu > p1->percent_cpu ? 1 : -1);
case HTOP_PERCENT_MEM_FIELD:
return (p2->m_resident - p1->m_resident);
case HTOP_NAME_FIELD:
return settings->sort_strcmp(p1->name, p2->name);
case HTOP_COMM_FIELD:
return settings->sort_strcmp(p1->comm, p2->comm);
case HTOP_MAJFLT_FIELD:
return (p2->majflt - p1->majflt);
case HTOP_MINFLT_FIELD:
return (p2->minflt - p1->minflt);
case HTOP_M_RESIDENT_FIELD:
return (p2->m_resident - p1->m_resident);
case HTOP_M_SIZE_FIELD:
return (p2->m_size - p1->m_size);
case HTOP_NICE_FIELD:
return (p1->nice - p2->nice);
case HTOP_NLWP_FIELD:
return (p1->nlwp - p2->nlwp);
case HTOP_PGRP_FIELD:
return (p1->pgrp - p2->pgrp);
case HTOP_PID_FIELD:
return (p1->pid - p2->pid);
case HTOP_PPID_FIELD:
return (p1->ppid - p2->ppid);
case HTOP_PRIORITY_FIELD:
return (p1->priority - p2->priority);
case HTOP_PROCESSOR_FIELD:
return (p1->processor - p2->processor);
case HTOP_SESSION_FIELD:
return (p1->session - p2->session);
case HTOP_STARTTIME_FIELD:
return p1->starttime_ctime == p2->starttime_ctime ?
p1->pid - p2->pid : p1->starttime_ctime - p2->starttime_ctime;
case HTOP_STATE_FIELD:
return (Process_sortState(p1->state) - Process_sortState(p2->state));
case HTOP_REAL_UID_FIELD:
return (p1->ruid - p2->ruid);
case HTOP_EFFECTIVE_UID_FIELD:
return (p1->euid - p2->euid);
case HTOP_TIME_FIELD:
return p2->time - p1->time;
case HTOP_TGID_FIELD:
return (p1->tgid - p2->tgid);
case HTOP_TPGID_FIELD:
return (p1->tpgid - p2->tpgid);
case HTOP_TTY_FIELD:
return (p1->tty_nr - p2->tty_nr);
case HTOP_REAL_USER_FIELD:
if(!p1->real_user && !p2->real_user) return p1->ruid - p2->ruid;
return settings->sort_strcmp(p1->real_user ? p1->real_user : "", p2->real_user ? p2->real_user : "");
case HTOP_EFFECTIVE_USER_FIELD:
if(!p1->effective_user && !p2->effective_user) return p1->euid - p2->euid;
return settings->sort_strcmp(p1->effective_user ? p1->effective_user : "", p2->effective_user ? p2->effective_user : "");
default:
return (p1->pid - p2->pid);
}
}