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ara-mdk / platform / external / htop / 221387e7d6bc6b5a189e553daed29696ec1b85a5 / . / Process.c
blob: 0f2f1f580542bc16d1385ed0c6ae02fcf50cefa2 [file] [log] [blame]
/*
htop - Process.c
(C) 2004-2010 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#define _GNU_SOURCE
#include "ProcessList.h"
#include "Object.h"
#include "CRT.h"
#include "String.h"
#include "Process.h"
#include "RichString.h"
#include "debug.h"
#include <stdio.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <stdbool.h>
#include <pwd.h>
#include <sched.h>
#include <time.h>
#ifdef HAVE_PLPA
#include <plpa.h>
#endif
// This works only with glibc 2.1+. On earlier versions
// the behavior is similar to have a hardcoded page size.
#ifndef PAGE_SIZE
#define PAGE_SIZE ( sysconf(_SC_PAGESIZE) )
#endif
#define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K )
/*{
#ifndef Process_isKernelThread
#define Process_isKernelThread(_process) (_process->pgrp == 0)
#endif
#ifndef Process_isUserlandThread
#define Process_isUserlandThread(_process) (_process->pid != _process->tgid)
#endif
#ifndef Process_isThread
#define Process_isThread(_process) (Process_isUserlandThread(_process) || Process_isKernelThread(_process))
#endif
typedef enum ProcessField_ {
PID = 1, COMM, STATE, PPID, PGRP, SESSION, TTY_NR, TPGID, FLAGS, MINFLT, CMINFLT, MAJFLT, CMAJFLT, UTIME,
STIME, CUTIME, CSTIME, PRIORITY, NICE, ITREALVALUE, STARTTIME, VSIZE, RSS, RLIM, STARTCODE, ENDCODE,
STARTSTACK, KSTKESP, KSTKEIP, SIGNAL, BLOCKED, SSIGIGNORE, SIGCATCH, WCHAN, NSWAP, CNSWAP, EXIT_SIGNAL,
PROCESSOR, M_SIZE, M_RESIDENT, M_SHARE, M_TRS, M_DRS, M_LRS, M_DT, ST_UID, PERCENT_CPU, PERCENT_MEM,
USER, TIME, NLWP, TGID,
#ifdef HAVE_OPENVZ
CTID, VPID,
#endif
#ifdef HAVE_VSERVER
VXID,
#endif
#ifdef HAVE_TASKSTATS
RCHAR, WCHAR, SYSCR, SYSCW, RBYTES, WBYTES, CNCLWB, IO_READ_RATE, IO_WRITE_RATE, IO_RATE,
#endif
#ifdef HAVE_CGROUP
CGROUP,
#endif
LAST_PROCESSFIELD
} ProcessField;
struct ProcessList_;
typedef struct Process_ {
Object super;
struct ProcessList_ *pl;
bool updated;
pid_t pid;
char* comm;
int indent;
char state;
bool tag;
bool showChildren;
bool show;
pid_t ppid;
unsigned int pgrp;
unsigned int session;
unsigned int tty_nr;
pid_t tgid;
int tpgid;
unsigned long int flags;
#ifdef DEBUG
unsigned long int minflt;
unsigned long int cminflt;
unsigned long int majflt;
unsigned long int cmajflt;
#endif
unsigned long int utime;
unsigned long int stime;
long int cutime;
long int cstime;
long int priority;
long int nice;
long int nlwp;
char starttime_show[8];
time_t starttime_ctime;
#ifdef DEBUG
long int itrealvalue;
unsigned long int vsize;
long int rss;
unsigned long int rlim;
unsigned long int startcode;
unsigned long int endcode;
unsigned long int startstack;
unsigned long int kstkesp;
unsigned long int kstkeip;
unsigned long int signal;
unsigned long int blocked;
unsigned long int sigignore;
unsigned long int sigcatch;
unsigned long int wchan;
unsigned long int nswap;
unsigned long int cnswap;
#endif
int exit_signal;
int processor;
int m_size;
int m_resident;
int m_share;
int m_trs;
int m_drs;
int m_lrs;
int m_dt;
uid_t st_uid;
float percent_cpu;
float percent_mem;
char* user;
#ifdef HAVE_OPENVZ
unsigned int ctid;
unsigned int vpid;
#endif
#ifdef HAVE_VSERVER
unsigned int vxid;
#endif
#ifdef HAVE_TASKSTATS
unsigned long long io_rchar;
unsigned long long io_wchar;
unsigned long long io_syscr;
unsigned long long io_syscw;
unsigned long long io_read_bytes;
unsigned long long io_write_bytes;
unsigned long long io_cancelled_write_bytes;
double io_rate_read_bps;
unsigned long long io_rate_read_time;
double io_rate_write_bps;
unsigned long long io_rate_write_time;
#endif
#ifdef HAVE_CGROUP
char* cgroup;
#endif
} Process;
}*/
#ifdef DEBUG
char* PROCESS_CLASS = "Process";
#else
#define PROCESS_CLASS NULL
#endif
const char *Process_fieldNames[] = {
"", "PID", "Command", "STATE", "PPID", "PGRP", "SESSION",
"TTY_NR", "TPGID", "FLAGS", "MINFLT", "CMINFLT", "MAJFLT", "CMAJFLT",
"UTIME", "STIME", "CUTIME", "CSTIME", "PRIORITY", "NICE", "ITREALVALUE",
"STARTTIME", "VSIZE", "RSS", "RLIM", "STARTCODE", "ENDCODE", "STARTSTACK",
"KSTKESP", "KSTKEIP", "SIGNAL", "BLOCKED", "SIGIGNORE", "SIGCATCH", "WCHAN",
"NSWAP", "CNSWAP", "EXIT_SIGNAL", "PROCESSOR", "M_SIZE", "M_RESIDENT", "M_SHARE",
"M_TRS", "M_DRS", "M_LRS", "M_DT", "ST_UID", "PERCENT_CPU", "PERCENT_MEM",
"USER", "TIME", "NLWP", "TGID",
#ifdef HAVE_OPENVZ
"CTID", "VPID",
#endif
#ifdef HAVE_VSERVER
"VXID",
#endif
#ifdef HAVE_TASKSTATS
"RCHAR", "WCHAR", "SYSCR", "SYSCW", "RBYTES", "WBYTES", "CNCLWB",
"IO_READ_RATE", "IO_WRITE_RATE", "IO_RATE",
#endif
#ifdef HAVE_CGROUP
"CGROUP",
#endif
"*** report bug! ***"
};
const char *Process_fieldTitles[] = {
"", " PID ", "Command ", "S ", " PPID ", " PGRP ", " SESN ",
" TTY ", "TPGID ", "- ", "- ", "- ", "- ", "- ",
" UTIME+ ", " STIME+ ", "- ", "- ", "PRI ", " NI ", "- ",
"START ", "- ", "- ", "- ", "- ", "- ", "- ",
"- ", "- ", "- ", "- ", "- ", "- ", "- ",
"- ", "- ", "- ", "CPU ", " VIRT ", " RES ", " SHR ",
" CODE ", " DATA ", " LIB ", " DIRTY ", " UID ", "CPU% ", "MEM% ",
"USER ", " TIME+ ", "NLWP ", " TGID ",
#ifdef HAVE_OPENVZ
" CTID ", " VPID ",
#endif
#ifdef HAVE_VSERVER
" VXID ",
#endif
#ifdef HAVE_TASKSTATS
" RD_CHAR ", " WR_CHAR ", " RD_SYSC ", " WR_SYSC ", " IO_RBYTES ", " IO_WBYTES ", " IO_CANCEL ",
" IORR ", " IOWR ", " IO ",
#endif
#ifdef HAVE_CGROUP
" CGROUP ",
#endif
"*** report bug! ***"
};
static int Process_getuid = -1;
#define ONE_K 1024
#define ONE_M (ONE_K * ONE_K)
#define ONE_G (ONE_M * ONE_K)
static void Process_printLargeNumber(Process* this, RichString* str, unsigned long number) {
char buffer[11];
int len;
if(number >= (10 * ONE_M)) {
if(number >= (100 * ONE_M)) {
len = snprintf(buffer, 10, "%4ldG ", number / ONE_M);
RichString_appendn(str, CRT_colors[LARGE_NUMBER], buffer, len);
} else {
len = snprintf(buffer, 10, "%3.1fG ", (float)number / ONE_M);
RichString_appendn(str, CRT_colors[LARGE_NUMBER], buffer, len);
}
} else if (number >= 100000) {
len = snprintf(buffer, 10, "%4ldM ", number / ONE_K);
int attr = this->pl->highlightMegabytes
? CRT_colors[PROCESS_MEGABYTES]
: CRT_colors[PROCESS];
RichString_appendn(str, attr, buffer, len);
} else if (this->pl->highlightMegabytes && number >= 1000) {
len = snprintf(buffer, 10, "%2ld", number/1000);
RichString_appendn(str, CRT_colors[PROCESS_MEGABYTES], buffer, len);
number %= 1000;
len = snprintf(buffer, 10, "%03ld ", number);
RichString_appendn(str, CRT_colors[PROCESS], buffer, len);
} else {
len = snprintf(buffer, 10, "%5ld ", number);
RichString_appendn(str, CRT_colors[PROCESS], buffer, len);
}
}
static double jiffy = 0.0;
static void Process_printTime(RichString* str, unsigned long t) {
if(jiffy == 0.0) jiffy = sysconf(_SC_CLK_TCK);
double jiffytime = 1.0 / jiffy;
double realTime = t * jiffytime;
int iRealTime = (int) realTime;
int hours = iRealTime / 3600;
int minutes = (iRealTime / 60) % 60;
int seconds = iRealTime % 60;
int hundredths = (realTime - iRealTime) * 100;
char buffer[11];
if (hours) {
snprintf(buffer, 10, "%2dh", hours);
RichString_append(str, CRT_colors[LARGE_NUMBER], buffer);
snprintf(buffer, 10, "%02d:%02d ", minutes, seconds);
} else {
snprintf(buffer, 10, "%2d:%02d.%02d ", minutes, seconds, hundredths);
}
RichString_append(str, CRT_colors[DEFAULT_COLOR], buffer);
}
static inline void Process_writeCommand(Process* this, int attr, int baseattr, RichString* str) {
int start = RichString_size(str);
RichString_append(str, attr, this->comm);
if (this->pl->highlightBaseName) {
int finish = RichString_size(str) - 1;
int space = RichString_findChar(str, ' ', start);
if (space != -1)
finish = space - 1;
for (;;) {
int slash = RichString_findChar(str, '/', start);
if (slash == -1 || slash > finish)
break;
start = slash + 1;
}
RichString_setAttrn(str, baseattr, start, finish);
}
}
static inline void Process_outputRate(Process* this, RichString* str, int attr, char* buffer, int n, double rate) {
rate = rate / 1024;
if (rate < 0.01)
snprintf(buffer, n, " 0 ");
else if (rate <= 10)
snprintf(buffer, n, "%5.2f ", rate);
else if (rate <= 100)
snprintf(buffer, n, "%5.1f ", rate);
else {
Process_printLargeNumber(this, str, rate);
return;
}
RichString_append(str, attr, buffer);
}
static void Process_writeField(Process* this, RichString* str, ProcessField field) {
char buffer[128]; buffer[127] = '\0';
int attr = CRT_colors[DEFAULT_COLOR];
int baseattr = CRT_colors[PROCESS_BASENAME];
int n = sizeof(buffer) - 1;
switch (field) {
case PID: snprintf(buffer, n, "%5u ", this->pid); break;
case PPID: snprintf(buffer, n, "%5u ", this->ppid); break;
case PGRP: snprintf(buffer, n, "%5u ", this->pgrp); break;
case SESSION: snprintf(buffer, n, "%5u ", this->session); break;
case TTY_NR: snprintf(buffer, n, "%5u ", this->tty_nr); break;
case TGID: snprintf(buffer, n, "%5u ", this->tgid); break;
case TPGID: snprintf(buffer, n, "%5d ", this->tpgid); break;
case PROCESSOR: snprintf(buffer, n, "%3d ", this->processor+1); break;
case NLWP: snprintf(buffer, n, "%4ld ", this->nlwp); break;
case COMM: {
if (this->pl->highlightThreads && Process_isThread(this)) {
attr = CRT_colors[PROCESS_THREAD];
baseattr = CRT_colors[PROCESS_THREAD_BASENAME];
}
if (!this->pl->treeView || this->indent == 0) {
Process_writeCommand(this, attr, baseattr, str);
return;
} else {
char* buf = buffer;
int maxIndent = 0;
for (int i = 0; i < 32; i++)
if (this->indent & (1 << i))
maxIndent = i+1;
for (int i = 0; i < maxIndent - 1; i++) {
if (this->indent & (1 << i))
snprintf(buf, n, " | ");
else
snprintf(buf, n, " ");
buf += 4;
n -= 4;
}
if (this->pl->direction == 1)
snprintf(buf, n, " `%s ", this->showChildren ? "-" : "+" );
else
snprintf(buf, n, " ,%s ", this->showChildren ? "-" : "+" );
RichString_append(str, CRT_colors[PROCESS_TREE], buffer);
Process_writeCommand(this, attr, baseattr, str);
return;
}
}
case STATE: {
snprintf(buffer, n, "%c ", this->state);
attr = this->state == 'R'
? CRT_colors[PROCESS_R_STATE]
: attr;
break;
}
case PRIORITY: {
if(this->priority == -100)
snprintf(buffer, n, " RT ");
else
snprintf(buffer, n, "%3ld ", this->priority);
break;
}
case NICE: {
snprintf(buffer, n, "%3ld ", this->nice);
attr = this->nice < 0 ? CRT_colors[PROCESS_HIGH_PRIORITY]
: this->nice > 0 ? CRT_colors[PROCESS_LOW_PRIORITY]
: attr;
break;
}
case M_DRS: Process_printLargeNumber(this, str, this->m_drs * PAGE_SIZE_KB); return;
case M_DT: Process_printLargeNumber(this, str, this->m_dt * PAGE_SIZE_KB); return;
case M_LRS: Process_printLargeNumber(this, str, this->m_lrs * PAGE_SIZE_KB); return;
case M_TRS: Process_printLargeNumber(this, str, this->m_trs * PAGE_SIZE_KB); return;
case M_SIZE: Process_printLargeNumber(this, str, this->m_size * PAGE_SIZE_KB); return;
case M_RESIDENT: Process_printLargeNumber(this, str, this->m_resident * PAGE_SIZE_KB); return;
case M_SHARE: Process_printLargeNumber(this, str, this->m_share * PAGE_SIZE_KB); return;
case ST_UID: snprintf(buffer, n, "%4d ", this->st_uid); break;
case USER: {
if (Process_getuid != (int) this->st_uid)
attr = CRT_colors[PROCESS_SHADOW];
if (this->user) {
snprintf(buffer, n, "%-8s ", this->user);
} else {
snprintf(buffer, n, "%-8d ", this->st_uid);
}
if (buffer[8] != '\0') {
buffer[8] = ' ';
buffer[9] = '\0';
}
break;
}
case UTIME: Process_printTime(str, this->utime); return;
case STIME: Process_printTime(str, this->stime); return;
case CUTIME: Process_printTime(str, this->cutime); return;
case CSTIME: Process_printTime(str, this->cstime); return;
case TIME: Process_printTime(str, this->utime + this->stime); return;
case PERCENT_CPU: {
if (this->percent_cpu > 999.9) {
snprintf(buffer, n, "%4d ", (unsigned int)this->percent_cpu);
} else if (this->percent_cpu > 99.9) {
snprintf(buffer, n, "%3d. ", (unsigned int)this->percent_cpu);
} else {
snprintf(buffer, n, "%4.1f ", this->percent_cpu);
}
break;
}
case PERCENT_MEM: {
if (this->percent_mem > 99.9) {
snprintf(buffer, n, "100. ");
} else {
snprintf(buffer, n, "%4.1f ", this->percent_mem);
}
break;
}
case STARTTIME: snprintf(buffer, n, "%s", this->starttime_show); break;
#ifdef HAVE_OPENVZ
case CTID: snprintf(buffer, n, "%5u ", this->ctid); break;
case VPID: snprintf(buffer, n, "%5u ", this->vpid); break;
#endif
#ifdef HAVE_VSERVER
case VXID: snprintf(buffer, n, "%5u ", this->vxid); break;
#endif
#ifdef HAVE_TASKSTATS
case RCHAR: snprintf(buffer, n, "%10llu ", this->io_rchar); break;
case WCHAR: snprintf(buffer, n, "%10llu ", this->io_wchar); break;
case SYSCR: snprintf(buffer, n, "%10llu ", this->io_syscr); break;
case SYSCW: snprintf(buffer, n, "%10llu ", this->io_syscw); break;
case RBYTES: snprintf(buffer, n, "%10llu ", this->io_read_bytes); break;
case WBYTES: snprintf(buffer, n, "%10llu ", this->io_write_bytes); break;
case CNCLWB: snprintf(buffer, n, "%10llu ", this->io_cancelled_write_bytes); break;
case IO_READ_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_read_bps); return;
case IO_WRITE_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_write_bps); return;
case IO_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_read_bps + this->io_rate_write_bps); return;
#endif
#ifdef HAVE_CGROUP
case CGROUP: snprintf(buffer, n, "%-10s ", this->cgroup); break;
#endif
default:
snprintf(buffer, n, "- ");
}
RichString_append(str, attr, buffer);
}
static void Process_display(Object* cast, RichString* out) {
Process* this = (Process*) cast;
ProcessField* fields = this->pl->fields;
RichString_prune(out);
for (int i = 0; fields[i]; i++)
Process_writeField(this, out, fields[i]);
if (this->pl->shadowOtherUsers && (int)this->st_uid != Process_getuid)
RichString_setAttr(out, CRT_colors[PROCESS_SHADOW]);
if (this->tag == true)
RichString_setAttr(out, CRT_colors[PROCESS_TAG]);
assert(out->len > 0);
}
void Process_delete(Object* cast) {
Process* this = (Process*) cast;
assert (this != NULL);
if (this->comm) free(this->comm);
#ifdef HAVE_CGROUP
if (this->cgroup) free(this->cgroup);
#endif
free(this);
}
Process* Process_new(struct ProcessList_ *pl) {
Process* this = calloc(sizeof(Process), 1);
Object_setClass(this, PROCESS_CLASS);
((Object*)this)->display = Process_display;
((Object*)this)->delete = Process_delete;
this->pid = 0;
this->pl = pl;
this->tag = false;
this->showChildren = true;
this->show = true;
this->updated = false;
this->utime = 0;
this->stime = 0;
this->comm = NULL;
this->indent = 0;
#ifdef HAVE_CGROUP
this->cgroup = NULL;
#endif
if (Process_getuid == -1) Process_getuid = getuid();
return this;
}
void Process_toggleTag(Process* this) {
this->tag = this->tag == true ? false : true;
}
bool Process_setPriority(Process* this, int priority) {
int old_prio = getpriority(PRIO_PROCESS, this->pid);
int err = setpriority(PRIO_PROCESS, this->pid, priority);
if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
this->nice = priority;
}
return (err == 0);
}
#ifdef HAVE_PLPA
unsigned long Process_getAffinity(Process* this) {
unsigned long mask = 0;
plpa_sched_getaffinity(this->pid, sizeof(unsigned long), (plpa_cpu_set_t*) &mask);
return mask;
}
bool Process_setAffinity(Process* this, unsigned long mask) {
return (plpa_sched_setaffinity(this->pid, sizeof(unsigned long), (plpa_cpu_set_t*) &mask) == 0);
}
#endif
void Process_sendSignal(Process* this, int sgn) {
kill(this->pid, sgn);
}
int Process_pidCompare(const void* v1, const void* v2) {
Process* p1 = (Process*)v1;
Process* p2 = (Process*)v2;
return (p1->pid - p2->pid);
}
int Process_compare(const void* v1, const void* v2) {
Process *p1, *p2;
ProcessList *pl = ((Process*)v1)->pl;
if (pl->direction == 1) {
p1 = (Process*)v1;
p2 = (Process*)v2;
} else {
p2 = (Process*)v1;
p1 = (Process*)v2;
}
long long diff;
switch (pl->sortKey) {
case PID:
return (p1->pid - p2->pid);
case PPID:
return (p1->ppid - p2->ppid);
case USER:
return strcmp(p1->user ? p1->user : "", p2->user ? p2->user : "");
case PRIORITY:
return (p1->priority - p2->priority);
case PROCESSOR:
return (p1->processor - p2->processor);
case SESSION:
return (p1->session - p2->session);
case STATE:
return (p1->state - p2->state);
case NICE:
return (p1->nice - p2->nice);
case M_DRS:
return (p2->m_drs - p1->m_drs);
case M_DT:
return (p2->m_dt - p1->m_dt);
case M_LRS:
return (p2->m_lrs - p1->m_lrs);
case M_TRS:
return (p2->m_trs - p1->m_trs);
case M_SIZE:
return (p2->m_size - p1->m_size);
case M_RESIDENT:
return (p2->m_resident - p1->m_resident);
case M_SHARE:
return (p2->m_share - p1->m_share);
case PERCENT_CPU:
return (p2->percent_cpu > p1->percent_cpu ? 1 : -1);
case PERCENT_MEM:
return (p2->m_resident - p1->m_resident);
case UTIME:
return (p2->utime - p1->utime);
case STIME:
return (p2->stime - p1->stime);
case TIME:
return ((p2->utime+p2->stime) - (p1->utime+p1->stime));
case COMM:
return strcmp(p1->comm, p2->comm);
case NLWP:
return (p1->nlwp - p2->nlwp);
case STARTTIME: {
if (p1->starttime_ctime == p2->starttime_ctime)
return (p1->pid - p2->pid);
else
return (p1->starttime_ctime - p2->starttime_ctime);
}
#ifdef HAVE_OPENVZ
case CTID:
return (p1->ctid - p2->ctid);
case VPID:
return (p1->vpid - p2->vpid);
#endif
#ifdef HAVE_VSERVER
case VXID:
return (p1->vxid - p2->vxid);
#endif
#ifdef HAVE_TASKSTATS
case RCHAR: diff = p2->io_rchar - p1->io_rchar; goto test_diff;
case WCHAR: diff = p2->io_wchar - p1->io_wchar; goto test_diff;
case SYSCR: diff = p2->io_syscr - p1->io_syscr; goto test_diff;
case SYSCW: diff = p2->io_syscw - p1->io_syscw; goto test_diff;
case RBYTES: diff = p2->io_read_bytes - p1->io_read_bytes; goto test_diff;
case WBYTES: diff = p2->io_write_bytes - p1->io_write_bytes; goto test_diff;
case CNCLWB: diff = p2->io_cancelled_write_bytes - p1->io_cancelled_write_bytes; goto test_diff;
case IO_READ_RATE: diff = p2->io_rate_read_bps - p1->io_rate_read_bps; goto test_diff;
case IO_WRITE_RATE: diff = p2->io_rate_write_bps - p1->io_rate_write_bps; goto test_diff;
case IO_RATE: diff = (p2->io_rate_read_bps + p2->io_rate_write_bps) - (p1->io_rate_read_bps + p1->io_rate_write_bps); goto test_diff;
#endif
#ifdef HAVE_CGROUP
case CGROUP:
return strcmp(p1->cgroup ? p1->cgroup : "", p2->cgroup ? p2->cgroup : "");
#endif
default:
return (p1->pid - p2->pid);
}
test_diff:
return (diff > 0) ? 1 : (diff < 0 ? -1 : 0);
}