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htop/Process.c

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/*
htop - Process.c
(C) 2004-2014 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 "String.h"
#include "RichString.h"
#include "Platform.h"
#include <stdio.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <stdbool.h>
#include <pwd.h>
#include <time.h>
#include <assert.h>
// On Linux, this works only with glibc 2.1+. On earlier versions
// the behavior is similar to have a hardcoded page size.
#ifndef PAGE_SIZE
#define PAGE_SIZE ( sysconf(_SC_PAGESIZE) )
#endif
#define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K )
/*{
#include "Object.h"
#include <sys/types.h>
#define PROCESS_FLAG_IO 1
#define PROCESS_FLAG_IOPRIO 2
#define PROCESS_FLAG_OPENVZ 4
#define PROCESS_FLAG_VSERVER 8
#define PROCESS_FLAG_CGROUP 16
#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
#ifdef HAVE_OOM
OOM,
#endif
IO_PRIORITY,
LAST_PROCESSFIELD
} ProcessField;
typedef struct Process_ {
Object super;
struct Settings_* settings;
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;
uid_t st_uid;
float percent_cpu;
float percent_mem;
char* user;
unsigned long long int utime;
unsigned long long int stime;
unsigned long long int cutime;
unsigned long long int cstime;
long int priority;
long int nice;
long int nlwp;
char starttime_show[8];
time_t starttime_ctime;
#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;
unsigned long long io_rate_read_time;
unsigned long long io_rate_write_time;
double io_rate_read_bps;
double io_rate_write_bps;
#endif
int processor;
long m_size;
long m_resident;
long m_share;
long m_trs;
long m_drs;
long m_lrs;
long m_dt;
#ifdef HAVE_OPENVZ
unsigned int ctid;
unsigned int vpid;
#endif
#ifdef HAVE_VSERVER
unsigned int vxid;
#endif
#ifdef HAVE_CGROUP
char* cgroup;
#endif
#ifdef HAVE_OOM
unsigned int oom;
#endif
int exit_signal;
int basenameOffset;
bool updated;
unsigned long int minflt;
unsigned long int cminflt;
unsigned long int majflt;
unsigned long int cmajflt;
#ifdef DEBUG
long int itrealvalue;
unsigned long int vsize;
long int rss;
unsigned long int rlim;
unsigned long int startcode;
unsigned long int endcode;
unsigned long int startstack;
unsigned long int kstkesp;
unsigned long int kstkeip;
unsigned long int signal;
unsigned long int blocked;
unsigned long int sigignore;
unsigned long int sigcatch;
unsigned long int wchan;
unsigned long int nswap;
unsigned long int cnswap;
#endif
} Process;
typedef struct ProcessFieldData_ {
const char* name;
const char* title;
const char* description;
int flags;
} ProcessFieldData;
void Process_writeField(Process* this, RichString* str, ProcessField field);
long Process_compare(const void* v1, const void* v2);
}*/
ProcessFieldData Process_fields[] = {
{ .name = "", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "PID", .title = " PID ", .description = "Process/thread ID", .flags = 0, },
{ .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, },
{ .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging)", .flags = 0, },
{ .name = "PPID", .title = " PPID ", .description = "Parent process ID", .flags = 0, },
{ .name = "PGRP", .title = " PGRP ", .description = "Process group ID", .flags = 0, },
{ .name = "SESSION", .title = " SESN ", .description = "Process's session ID", .flags = 0, },
{ .name = "TTY_NR", .title = " TTY ", .description = "Controlling terminal", .flags = 0, },
{ .name = "TPGID", .title = " TPGID ", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, },
{ .name = "FLAGS", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "MINFLT", .title = " MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, },
{ .name = "CMINFLT", .title = " CMINFLT ", .description = "Children processes' minor faults", .flags = 0, },
{ .name = "MAJFLT", .title = " MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, },
{ .name = "CMAJFLT", .title = " CMAJFLT ", .description = "Children processes' major faults", .flags = 0, },
{ .name = "UTIME", .title = " UTIME+ ", .description = "User CPU time - time the process spent executing in user mode", .flags = 0, },
{ .name = "STIME", .title = " STIME+ ", .description = "System CPU time - time the kernel spent running system calls for this process", .flags = 0, },
{ .name = "CUTIME", .title = " CUTIME+ ", .description = "Children processes' user CPU time", .flags = 0, },
{ .name = "CSTIME", .title = " CSTIME+ ", .description = "Children processes' system CPU time", .flags = 0, },
{ .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, },
{ .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, },
{ .name = "ITREALVALUE", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, },
{ .name = "VSIZE", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "RSS", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "RLIM", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "STARTCODE", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "ENDCODE", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "STARTSTACK", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "KSTKESP", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "KSTKEIP", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "SIGNAL", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "BLOCKED", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "SIGIGNORE", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "SIGCATCH", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "WCHAN", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "NSWAP", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "CNSWAP", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "EXIT_SIGNAL", .title = NULL, .description = NULL, .flags = 0, },
{ .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
{ .name = "M_SIZE", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, },
{ .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, },
{ .name = "M_SHARE", .title = " SHR ", .description = "Size of the process's shared pages", .flags = 0, },
{ .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, },
{ .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, },
{ .name = "M_LRS", .title = " LIB ", .description = "The library size of the process", .flags = 0, },
{ .name = "M_DT", .title = " DIRTY ", .description = "Size of the dirty pages of the process", .flags = 0, },
{ .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .flags = 0, },
{ .name = "PERCENT_CPU", .title = "CPU% ", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, },
{ .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, },
{ .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, },
{ .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, },
{ .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, },
{ .name = "TGID", .title = " TGID ", .description = "Thread group ID (i.e. process ID)", .flags = 0, },
#ifdef HAVE_OPENVZ
{ .name = "CTID", .title = " CTID ", .description = "OpenVZ container ID (a.k.a. virtual environment ID)", .flags = PROCESS_FLAG_OPENVZ, },
{ .name = "VPID", .title = " VPID ", .description = "OpenVZ process ID", .flags = PROCESS_FLAG_OPENVZ, },
#endif
#ifdef HAVE_VSERVER
{ .name = "VXID", .title = " VXID ", .description = "VServer process ID", .flags = PROCESS_FLAG_VSERVER, },
#endif
#ifdef HAVE_TASKSTATS
{ .name = "RCHAR", .title = " RD_CHAR ", .description = "Number of bytes the process has read", .flags = PROCESS_FLAG_IO, },
{ .name = "WCHAR", .title = " WR_CHAR ", .description = "Number of bytes the process has written", .flags = PROCESS_FLAG_IO, },
{ .name = "SYSCR", .title = " RD_SYSC ", .description = "Number of read(2) syscalls for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "SYSCW", .title = " WR_SYSC ", .description = "Number of write(2) syscalls for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "RBYTES", .title = " IO_RBYTES ", .description = "Bytes of read(2) I/O for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "WBYTES", .title = " IO_WBYTES ", .description = "Bytes of write(2) I/O for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "CNCLWB", .title = " IO_CANCEL ", .description = "Bytes of cancelled write(2) I/O", .flags = PROCESS_FLAG_IO, },
{ .name = "IO_READ_RATE", .title = " DISK READ ", .description = "The I/O rate of read(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "IO_WRITE_RATE", .title = " DISK WRITE ", .description = "The I/O rate of write(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, },
{ .name = "IO_RATE", .title = " DISK R/W ", .description = "Total I/O rate in bytes per second", .flags = PROCESS_FLAG_IO, },
#endif
#ifdef HAVE_CGROUP
{ .name = "CGROUP", .title = " CGROUP ", .description = "Which cgroup the process is in", .flags = PROCESS_FLAG_CGROUP, },
#endif
#ifdef HAVE_OOM
{ .name = "OOM", .title = " OOM ", .description = "OOM (Out-of-Memory) killer score", .flags = 0, },
#endif
{ .name = "IO_PRIORITY", .title = "IO ", .description = "I/O priority", .flags = PROCESS_FLAG_IOPRIO, },
{ .name = "*** report bug! ***", .title = NULL, .description = NULL, .flags = 0, },
};
static int Process_getuid = -1;
static char* Process_pidFormat = "%7u ";
static char* Process_tpgidFormat = "%7u ";
void Process_setupColumnWidths() {
int maxPid = Platform_getMaxPid();
if (maxPid == -1) return;
if (maxPid > 99999) {
Process_fields[PID].title = " PID ";
Process_fields[PPID].title = " PPID ";
#ifdef HAVE_OPENVZ
Process_fields[VPID].title = " VPID ";
#endif
Process_fields[TPGID].title = " TPGID ";
Process_fields[TGID].title = " TGID ";
Process_fields[PGRP].title = " PGRP ";
Process_fields[SESSION].title = " SESN ";
#ifdef HAVE_OOM
Process_fields[OOM].title = " OOM ";
#endif
Process_pidFormat = "%7u ";
Process_tpgidFormat = "%7d ";
} else {
Process_fields[PID].title = " PID ";
Process_fields[PPID].title = " PPID ";
#ifdef HAVE_OPENVZ
Process_fields[VPID].title = " VPID ";
#endif
Process_fields[TPGID].title = "TPGID ";
Process_fields[TGID].title = " TGID ";
Process_fields[PGRP].title = " PGRP ";
Process_fields[SESSION].title = " SESN ";
#ifdef HAVE_OOM
Process_fields[OOM].title = " OOM ";
#endif
Process_pidFormat = "%5u ";
Process_tpgidFormat = "%5d ";
}
}
#define ONE_K 1024L
#define ONE_M (ONE_K * ONE_K)
#define ONE_G (ONE_M * ONE_K)
#define ONE_DECIMAL_K 1000L
#define ONE_DECIMAL_M (ONE_DECIMAL_K * ONE_DECIMAL_K)
#define ONE_DECIMAL_G (ONE_DECIMAL_M * ONE_DECIMAL_K)
static void Process_humanNumber(RichString* str, unsigned long number, bool coloring) {
char buffer[11];
int len;
int largeNumberColor = CRT_colors[LARGE_NUMBER];
int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
int processColor = CRT_colors[PROCESS];
if (!coloring) {
largeNumberColor = CRT_colors[PROCESS];
processMegabytesColor = CRT_colors[PROCESS];
}
if(number >= (10 * ONE_DECIMAL_M)) {
#ifdef __LP64__
if(number >= (100 * ONE_DECIMAL_G)) {
len = snprintf(buffer, 10, "%4ldT ", number / ONE_G);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
} else if (number >= (1000 * ONE_DECIMAL_M)) {
len = snprintf(buffer, 10, "%4.1lfT ", (double)number / ONE_G);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
}
#endif
if(number >= (100 * ONE_DECIMAL_M)) {
len = snprintf(buffer, 10, "%4ldG ", number / ONE_M);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
}
len = snprintf(buffer, 10, "%4.1lfG ", (double)number / ONE_M);
RichString_appendn(str, largeNumberColor, buffer, len);
return;
} else if (number >= 100000) {
len = snprintf(buffer, 10, "%4ldM ", number / ONE_K);
RichString_appendn(str, processMegabytesColor, buffer, len);
return;
} else if (number >= 1000) {
len = snprintf(buffer, 10, "%2ld", number/1000);
RichString_appendn(str, processMegabytesColor, buffer, len);
number %= 1000;
len = snprintf(buffer, 10, "%03lu ", number);
RichString_appendn(str, processColor, buffer, len);
return;
}
len = snprintf(buffer, 10, "%5lu ", number);
RichString_appendn(str, processColor, buffer, len);
}
static void Process_colorNumber(RichString* str, unsigned long long number, bool coloring) {
char buffer[14];
int largeNumberColor = CRT_colors[LARGE_NUMBER];
int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
int processColor = CRT_colors[PROCESS];
int processShadowColor = CRT_colors[PROCESS_SHADOW];
if (!coloring) {
largeNumberColor = CRT_colors[PROCESS];
processMegabytesColor = CRT_colors[PROCESS];
processShadowColor = CRT_colors[PROCESS];
}
if (number > 10000000000) {
snprintf(buffer, 13, "%11lld ", number / 1000);
RichString_appendn(str, largeNumberColor, buffer, 5);
RichString_appendn(str, processMegabytesColor, buffer+5, 3);
RichString_appendn(str, processColor, buffer+8, 4);
} else {
snprintf(buffer, 13, "%11llu ", number);
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);
}
}
static double jiffy = 0.0;
static void Process_printTime(RichString* str, unsigned long long t) {
if(jiffy == 0.0) jiffy = sysconf(_SC_CLK_TCK);
double jiffytime = 1.0 / jiffy;
double realTime = t * jiffytime;
unsigned long long iRealTime = (unsigned long long) realTime;
unsigned long long hours = iRealTime / 3600;
int minutes = (iRealTime / 60) % 60;
int seconds = iRealTime % 60;
int hundredths = (realTime - iRealTime) * 100;
char buffer[11];
if (hours >= 100) {
snprintf(buffer, 10, "%7lluh ", hours);
RichString_append(str, CRT_colors[LARGE_NUMBER], buffer);
} else {
if (hours) {
snprintf(buffer, 10, "%2lluh", 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->settings->highlightBaseName) {
int finish = RichString_size(str) - 1;
if (this->basenameOffset != -1)
finish = (start + this->basenameOffset) - 1;
int colon = RichString_findChar(str, ':', start);
if (colon != -1 && colon < finish) {
finish = colon;
} else {
for (int i = finish - start; i >= 0; i--) {
if (this->comm[i] == '/') {
start += i+1;
break;
}
}
}
RichString_setAttrn(str, baseattr, start, finish);
}
}
static inline void Process_outputRate(RichString* str, char* buffer, int n, double rate, int coloring) {
int largeNumberColor = CRT_colors[LARGE_NUMBER];
int processMegabytesColor = CRT_colors[PROCESS_MEGABYTES];
int processColor = CRT_colors[PROCESS];
if (!coloring) {
largeNumberColor = CRT_colors[PROCESS];
processMegabytesColor = CRT_colors[PROCESS];
}
if (rate < 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) {
int len = snprintf(buffer, n, "%7.2f K/s ", rate / ONE_K);
RichString_appendn(str, processColor, buffer, len);
} else if (rate < ONE_K * ONE_K * ONE_K) {
int len = snprintf(buffer, n, "%7.2f M/s ", rate / ONE_K / ONE_K);
RichString_appendn(str, processMegabytesColor, buffer, len);
} else {
int len = snprintf(buffer, n, "%7.2f G/s ", rate / ONE_K / ONE_K / ONE_K);
RichString_appendn(str, largeNumberColor, buffer, len);
}
}
void Process_writeDefaultField(Process* this, RichString* str, ProcessField field) {
char buffer[256]; buffer[255] = '\0';
int attr = CRT_colors[DEFAULT_COLOR];
int baseattr = CRT_colors[PROCESS_BASENAME];
int n = sizeof(buffer) - 1;
bool coloring = this->settings->highlightMegabytes;
switch (field) {
case PID: snprintf(buffer, n, Process_pidFormat, this->pid); break;
case PPID: snprintf(buffer, n, Process_pidFormat, this->ppid); break;
case PGRP: snprintf(buffer, n, Process_pidFormat, this->pgrp); break;
case SESSION: snprintf(buffer, n, Process_pidFormat, this->session); break;
case TTY_NR: snprintf(buffer, n, "%5u ", this->tty_nr); break;
case TGID: snprintf(buffer, n, Process_pidFormat, this->tgid); break;
case TPGID: snprintf(buffer, n, Process_tpgidFormat, this->tpgid); break;
case MINFLT: Process_colorNumber(str, this->minflt, coloring); return;
case CMINFLT: Process_colorNumber(str, this->cminflt, coloring); return;
case MAJFLT: Process_colorNumber(str, this->majflt, coloring); return;
case CMAJFLT: Process_colorNumber(str, this->cmajflt, coloring); return;
case PROCESSOR: snprintf(buffer, n, "%3d ", Settings_cpuId(this->settings, this->processor)); break;
case NLWP: snprintf(buffer, n, "%4ld ", this->nlwp); break;
case COMM: {
if (this->settings->highlightThreads && Process_isThread(this)) {
attr = CRT_colors[PROCESS_THREAD];
baseattr = CRT_colors[PROCESS_THREAD_BASENAME];
}
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 & (1 << i))
maxIndent = i+1;
for (int i = 0; i < maxIndent - 1; i++) {
int written;
if (indent & (1 << i))
written = snprintf(buf, n, "%s ", CRT_treeStr[TREE_STR_VERT]);
else
written = snprintf(buf, n, " ");
buf += written;
n -= written;
}
const char* draw = CRT_treeStr[lastItem ? (this->settings->direction == 1 ? TREE_STR_BEND : TREE_STR_TEND) : TREE_STR_RTEE];
snprintf(buf, n, "%s%s ", draw, this->showChildren ? CRT_treeStr[TREE_STR_SHUT] : CRT_treeStr[TREE_STR_OPEN] );
RichString_append(str, CRT_colors[PROCESS_TREE], buffer);
Process_writeCommand(this, attr, baseattr, str);
return;
}
}
case STATE: {
snprintf(buffer, n, "%c ", this->state);
switch(this->state) {
case 'R':
attr = CRT_colors[PROCESS_R_STATE];
break;
case 'D':
attr = CRT_colors[PROCESS_D_STATE];
break;
}
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_humanNumber(str, this->m_drs * PAGE_SIZE_KB, coloring); return;
case M_DT: Process_humanNumber(str, this->m_dt * PAGE_SIZE_KB, coloring); return;
case M_LRS: Process_humanNumber(str, this->m_lrs * PAGE_SIZE_KB, coloring); return;
case M_TRS: Process_humanNumber(str, this->m_trs * PAGE_SIZE_KB, coloring); return;
case M_SIZE: Process_humanNumber(str, this->m_size * PAGE_SIZE_KB, coloring); return;
case M_RESIDENT: Process_humanNumber(str, this->m_resident * PAGE_SIZE_KB, coloring); return;
case M_SHARE: Process_humanNumber(str, this->m_share * PAGE_SIZE_KB, coloring); 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, "%-9s ", this->user);
} else {
snprintf(buffer, n, "%-9d ", this->st_uid);
}
if (buffer[9] != '\0') {
buffer[9] = ' ';
buffer[10] = '\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, "%7u ", this->ctid); break;
case VPID: snprintf(buffer, n, Process_pidFormat, this->vpid); break;
#endif
#ifdef HAVE_VSERVER
case VXID: snprintf(buffer, n, "%5u ", this->vxid); break;
#endif
#ifdef HAVE_TASKSTATS
case RCHAR: Process_colorNumber(str, this->io_rchar, coloring); return;
case WCHAR: Process_colorNumber(str, this->io_wchar, coloring); return;
case SYSCR: Process_colorNumber(str, this->io_syscr, coloring); return;
case SYSCW: Process_colorNumber(str, this->io_syscw, coloring); return;
case RBYTES: Process_colorNumber(str, this->io_read_bytes, coloring); return;
case WBYTES: Process_colorNumber(str, this->io_write_bytes, coloring); return;
case CNCLWB: Process_colorNumber(str, this->io_cancelled_write_bytes, coloring); return;
case IO_READ_RATE: Process_outputRate(str, buffer, n, this->io_rate_read_bps, coloring); return;
case IO_WRITE_RATE: Process_outputRate(str, buffer, n, this->io_rate_write_bps, coloring); return;
case IO_RATE: Process_outputRate(str, buffer, n, this->io_rate_read_bps + this->io_rate_write_bps, coloring); return;
#endif
#ifdef HAVE_CGROUP
case CGROUP: snprintf(buffer, n, "%-10s ", this->cgroup); break;
#endif
#ifdef HAVE_OOM
case OOM: snprintf(buffer, n, Process_pidFormat, this->oom); 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->settings->fields;
RichString_prune(out);
for (int i = 0; fields[i]; i++)
Process_writeField(this, out, fields[i]);
if (this->settings->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->chlen > 0);
}
void Process_delete(Object* cast) {
Process* this = (Process*) cast;
assert (this != NULL);
free(this->comm);
#ifdef HAVE_CGROUP
free(this->cgroup);
#endif
free(this);
}
ObjectClass Process_class = {
.extends = Class(Object),
.display = Process_display,
.delete = Process_delete,
.compare = Process_compare
};
Process* Process_new(struct Settings_* settings) {
Process* this = calloc(1, sizeof(Process));
Object_setClass(this, Class(Process));
this->pid = 0;
this->settings = settings;
this->tag = false;
this->showChildren = true;
this->show = true;
this->updated = false;
this->utime = 0;
this->stime = 0;
this->comm = NULL;
this->basenameOffset = -1;
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);
}
bool Process_changePriorityBy(Process* this, size_t delta) {
return Process_setPriority(this, this->nice + delta);
}
void Process_sendSignal(Process* this, size_t sgn) {
kill(this->pid, (int) sgn);
}
long Process_pidCompare(const void* v1, const void* v2) {
Process* p1 = (Process*)v1;
Process* p2 = (Process*)v2;
return (p1->pid - p2->pid);
}
long Process_defaultCompare(const void* v1, const void* v2) {
Process *p1, *p2;
Settings *settings = ((Process*)v1)->settings;
if (settings->direction == 1) {
p1 = (Process*)v1;
p2 = (Process*)v2;
} else {
p2 = (Process*)v1;
p1 = (Process*)v2;
}
long long diff;
switch (settings->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: diff = p2->utime - p1->utime; goto test_diff;
case CUTIME: diff = p2->cutime - p1->cutime; goto test_diff;
case STIME: diff = p2->stime - p1->stime; goto test_diff;
case CSTIME: diff = p2->cstime - p2->cstime; goto test_diff;
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
#ifdef HAVE_OOM
case OOM:
return (p1->oom - p2->oom);
#endif
default:
return (p1->pid - p2->pid);
}
test_diff:
return (diff > 0) ? 1 : (diff < 0 ? -1 : 0);
}
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