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htop/pcp/PCPProcess.c

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/*
htop - PCPProcess.c
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
#include "pcp/PCPProcess.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syscall.h>
#include <unistd.h>
#include "CRT.h"
#include "Process.h"
#include "ProvideCurses.h"
#include "XUtils.h"
const ProcessFieldData Process_fields[] = {
[0] = { .name = "", .title = NULL, .description = NULL, .flags = 0, },
[PID] = { .name = "PID", .title = "PID", .description = "Process/thread ID", .flags = 0, .pidColumn = true, },
[COMM] = { .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, },
[STATE] = { .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging, I idle)", .flags = 0, },
[PPID] = { .name = "PPID", .title = "PPID", .description = "Parent process ID", .flags = 0, },
[PGRP] = { .name = "PGRP", .title = "PGRP", .description = "Process group ID", .flags = 0, },
[SESSION] = { .name = "SESSION", .title = "SID", .description = "Process's session ID", .flags = 0, },
[TTY] = { .name = "TTY", .title = "TTY ", .description = "Controlling terminal", .flags = 0, },
[TPGID] = { .name = "TPGID", .title = "TPGID", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, },
[MINFLT] = { .name = "MINFLT", .title = " MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
[CMINFLT] = { .name = "CMINFLT", .title = " CMINFLT ", .description = "Children processes' minor faults", .flags = 0, .defaultSortDesc = true, },
[MAJFLT] = { .name = "MAJFLT", .title = " MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
[CMAJFLT] = { .name = "CMAJFLT", .title = " CMAJFLT ", .description = "Children processes' major faults", .flags = 0, .defaultSortDesc = true, },
[UTIME] = { .name = "UTIME", .title = " UTIME+ ", .description = "User CPU time - time the process spent executing in user mode", .flags = 0, .defaultSortDesc = true, },
[STIME] = { .name = "STIME", .title = " STIME+ ", .description = "System CPU time - time the kernel spent running system calls for this process", .flags = 0, .defaultSortDesc = true, },
[CUTIME] = { .name = "CUTIME", .title = " CUTIME+ ", .description = "Children processes' user CPU time", .flags = 0, .defaultSortDesc = true, },
[CSTIME] = { .name = "CSTIME", .title = " CSTIME+ ", .description = "Children processes' system CPU time", .flags = 0, .defaultSortDesc = true, },
[PRIORITY] = { .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, },
[NICE] = { .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, },
[STARTTIME] = { .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, },
[ELAPSED] = { .name = "ELAPSED", .title = "ELAPSED ", .description = "Time since the process was started", .flags = 0, },
[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "If of the CPU the process last executed on", .flags = 0, },
[M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
[M_SHARE] = { .name = "M_SHARE", .title = " SHR ", .description = "Size of the process's shared pages", .flags = 0, .defaultSortDesc = true, },
[M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, .defaultSortDesc = true, },
[M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, .defaultSortDesc = true, },
[M_LRS] = { .name = "M_LRS", .title = " LIB ", .description = "The library size of the process (unused since Linux 2.6; always 0)", .flags = 0, .defaultSortDesc = true, },
[M_DT] = { .name = "M_DT", .title = " DIRTY ", .description = "Size of the dirty pages of the process (unused since Linux 2.6; always 0)", .flags = 0, .defaultSortDesc = true, },
[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .flags = 0, },
[PERCENT_CPU] = { .name = "PERCENT_CPU", .title = "CPU% ", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, .defaultSortDesc = true, },
[PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, },
[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, },
[TIME] = { .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, .defaultSortDesc = true, },
[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, .defaultSortDesc = true, },
[TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, },
[RCHAR] = { .name = "RCHAR", .title = "RCHAR ", .description = "Number of bytes the process has read", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[WCHAR] = { .name = "WCHAR", .title = "WCHAR ", .description = "Number of bytes the process has written", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[SYSCR] = { .name = "SYSCR", .title = " READ_SYSC ", .description = "Number of read(2) syscalls for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[SYSCW] = { .name = "SYSCW", .title = " WRITE_SYSC ", .description = "Number of write(2) syscalls for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[RBYTES] = { .name = "RBYTES", .title = " IO_R ", .description = "Bytes of read(2) I/O for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[WBYTES] = { .name = "WBYTES", .title = " IO_W ", .description = "Bytes of write(2) I/O for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[CNCLWB] = { .name = "CNCLWB", .title = " IO_C ", .description = "Bytes of cancelled write(2) I/O", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[IO_READ_RATE] = { .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, .defaultSortDesc = true, },
[IO_WRITE_RATE] = { .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, .defaultSortDesc = true, },
[IO_RATE] = { .name = "IO_RATE", .title = " DISK R/W ", .description = "Total I/O rate in bytes per second", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
[CGROUP] = { .name = "CGROUP", .title = " CGROUP ", .description = "Which cgroup the process is in", .flags = PROCESS_FLAG_LINUX_CGROUP, },
[OOM] = { .name = "OOM", .title = " OOM ", .description = "OOM (Out-of-Memory) killer score", .flags = PROCESS_FLAG_LINUX_OOM, .defaultSortDesc = true, },
[PERCENT_CPU_DELAY] = { .name = "PERCENT_CPU_DELAY", .title = "CPUD% ", .description = "CPU delay %", .flags = 0, .defaultSortDesc = true, },
[PERCENT_IO_DELAY] = { .name = "PERCENT_IO_DELAY", .title = "IOD% ", .description = "Block I/O delay %", .flags = 0, .defaultSortDesc = true, },
[PERCENT_SWAP_DELAY] = { .name = "PERCENT_SWAP_DELAY", .title = "SWAPD% ", .description = "Swapin delay %", .flags = 0, .defaultSortDesc = true, },
[M_PSS] = { .name = "M_PSS", .title = " PSS ", .description = "proportional set size, same as M_RESIDENT but each page is divided by the number of processes sharing it.", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
[M_SWAP] = { .name = "M_SWAP", .title = " SWAP ", .description = "Size of the process's swapped pages", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
[M_PSSWP] = { .name = "M_PSSWP", .title = " PSSWP ", .description = "shows proportional swap share of this mapping, Unlike \"Swap\", this does not take into account swapped out page of underlying shmem objects.", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
[CTXT] = { .name = "CTXT", .title = " CTXT ", .description = "Context switches (incremental sum of voluntary_ctxt_switches and nonvoluntary_ctxt_switches)", .flags = PROCESS_FLAG_LINUX_CTXT, .defaultSortDesc = true, },
[SECATTR] = { .name = "SECATTR", .title = " Security Attribute ", .description = "Security attribute of the process (e.g. SELinux or AppArmor)", .flags = PROCESS_FLAG_LINUX_SECATTR, },
[PROC_COMM] = { .name = "COMM", .title = "COMM ", .description = "comm string of the process", .flags = 0, },
[PROC_EXE] = { .name = "EXE", .title = "EXE ", .description = "Basename of exe of the process", .flags = 0, },
[CWD] = { .name = "CWD", .title = "CWD ", .description = "The current working directory of the process", .flags = PROCESS_FLAG_CWD, },
};
Process* PCPProcess_new(const Settings* settings) {
PCPProcess* this = xCalloc(1, sizeof(PCPProcess));
Object_setClass(this, Class(PCPProcess));
Process_init(&this->super, settings);
return &this->super;
}
void Process_delete(Object* cast) {
PCPProcess* this = (PCPProcess*) cast;
Process_done((Process*)cast);
free(this->cgroup);
free(this->secattr);
free(this);
}
static void PCPProcess_printDelay(float delay_percent, char* buffer, int n) {
if (isnan(delay_percent)) {
xSnprintf(buffer, n, " N/A ");
} else {
xSnprintf(buffer, n, "%4.1f ", delay_percent);
}
}
static void PCPProcess_writeField(const Process* this, RichString* str, ProcessField field) {
const PCPProcess* pp = (const PCPProcess*) this;
bool coloring = this->settings->highlightMegabytes;
char buffer[256]; buffer[255] = '\0';
int attr = CRT_colors[DEFAULT_COLOR];
int n = sizeof(buffer) - 1;
switch ((int)field) {
case CMINFLT: Process_printCount(str, pp->cminflt, coloring); return;
case CMAJFLT: Process_printCount(str, pp->cmajflt, coloring); return;
case M_DRS: Process_printBytes(str, pp->m_drs, coloring); return;
case M_DT: Process_printBytes(str, pp->m_dt, coloring); return;
case M_LRS: Process_printBytes(str, pp->m_lrs, coloring); return;
case M_TRS: Process_printBytes(str, pp->m_trs, coloring); return;
case M_SHARE: Process_printBytes(str, pp->m_share, coloring); return;
case M_PSS: Process_printKBytes(str, pp->m_pss, coloring); return;
case M_SWAP: Process_printKBytes(str, pp->m_swap, coloring); return;
case M_PSSWP: Process_printKBytes(str, pp->m_psswp, coloring); return;
case UTIME: Process_printTime(str, pp->utime, coloring); return;
case STIME: Process_printTime(str, pp->stime, coloring); return;
case CUTIME: Process_printTime(str, pp->cutime, coloring); return;
case CSTIME: Process_printTime(str, pp->cstime, coloring); return;
case RCHAR: Process_printBytes(str, pp->io_rchar, coloring); return;
case WCHAR: Process_printBytes(str, pp->io_wchar, coloring); return;
case SYSCR: Process_printCount(str, pp->io_syscr, coloring); return;
case SYSCW: Process_printCount(str, pp->io_syscw, coloring); return;
case RBYTES: Process_printBytes(str, pp->io_read_bytes, coloring); return;
case WBYTES: Process_printBytes(str, pp->io_write_bytes, coloring); return;
case CNCLWB: Process_printBytes(str, pp->io_cancelled_write_bytes, coloring); return;
case IO_READ_RATE: Process_printRate(str, pp->io_rate_read_bps, coloring); return;
case IO_WRITE_RATE: Process_printRate(str, pp->io_rate_write_bps, coloring); return;
case IO_RATE: {
double totalRate = NAN;
if (!isnan(pp->io_rate_read_bps) && !isnan(pp->io_rate_write_bps))
totalRate = pp->io_rate_read_bps + pp->io_rate_write_bps;
else if (!isnan(pp->io_rate_read_bps))
totalRate = pp->io_rate_read_bps;
else if (!isnan(pp->io_rate_write_bps))
totalRate = pp->io_rate_write_bps;
else
totalRate = NAN;
Process_printRate(str, totalRate, coloring);
return;
}
case CGROUP: xSnprintf(buffer, n, "%-10s ", pp->cgroup ? pp->cgroup : ""); break;
case OOM: xSnprintf(buffer, n, "%4u ", pp->oom); break;
case PERCENT_CPU_DELAY:
PCPProcess_printDelay(pp->cpu_delay_percent, buffer, n);
break;
case PERCENT_IO_DELAY:
PCPProcess_printDelay(pp->blkio_delay_percent, buffer, n);
break;
case PERCENT_SWAP_DELAY:
PCPProcess_printDelay(pp->swapin_delay_percent, buffer, n);
break;
case CTXT:
if (pp->ctxt_diff > 1000) {
attr |= A_BOLD;
}
xSnprintf(buffer, n, "%5lu ", pp->ctxt_diff);
break;
case SECATTR: snprintf(buffer, n, "%-30s ", pp->secattr ? pp->secattr : "?"); break;
default:
Process_writeField(this, str, field);
return;
}
RichString_appendWide(str, attr, buffer);
}
static double adjustNaN(double num) {
if (isnan(num))
return -0.0005;
return num;
}
static int PCPProcess_compareByKey(const Process* v1, const Process* v2, ProcessField key) {
const PCPProcess* p1 = (const PCPProcess*)v1;
const PCPProcess* p2 = (const PCPProcess*)v2;
switch (key) {
case M_DRS:
return SPACESHIP_NUMBER(p1->m_drs, p2->m_drs);
case M_DT:
return SPACESHIP_NUMBER(p1->m_dt, p2->m_dt);
case M_LRS:
return SPACESHIP_NUMBER(p1->m_lrs, p2->m_lrs);
case M_TRS:
return SPACESHIP_NUMBER(p1->m_trs, p2->m_trs);
case M_SHARE:
return SPACESHIP_NUMBER(p1->m_share, p2->m_share);
case M_PSS:
return SPACESHIP_NUMBER(p1->m_pss, p2->m_pss);
case M_SWAP:
return SPACESHIP_NUMBER(p1->m_swap, p2->m_swap);
case M_PSSWP:
return SPACESHIP_NUMBER(p1->m_psswp, p2->m_psswp);
case UTIME:
return SPACESHIP_NUMBER(p1->utime, p2->utime);
case CUTIME:
return SPACESHIP_NUMBER(p1->cutime, p2->cutime);
case STIME:
return SPACESHIP_NUMBER(p1->stime, p2->stime);
case CSTIME:
return SPACESHIP_NUMBER(p1->cstime, p2->cstime);
case RCHAR:
return SPACESHIP_NUMBER(p1->io_rchar, p2->io_rchar);
case WCHAR:
return SPACESHIP_NUMBER(p1->io_wchar, p2->io_wchar);
case SYSCR:
return SPACESHIP_NUMBER(p1->io_syscr, p2->io_syscr);
case SYSCW:
return SPACESHIP_NUMBER(p1->io_syscw, p2->io_syscw);
case RBYTES:
return SPACESHIP_NUMBER(p1->io_read_bytes, p2->io_read_bytes);
case WBYTES:
return SPACESHIP_NUMBER(p1->io_write_bytes, p2->io_write_bytes);
case CNCLWB:
return SPACESHIP_NUMBER(p1->io_cancelled_write_bytes, p2->io_cancelled_write_bytes);
case IO_READ_RATE:
return SPACESHIP_NUMBER(adjustNaN(p1->io_rate_read_bps), adjustNaN(p2->io_rate_read_bps));
case IO_WRITE_RATE:
return SPACESHIP_NUMBER(adjustNaN(p1->io_rate_write_bps), adjustNaN(p2->io_rate_write_bps));
case IO_RATE:
return SPACESHIP_NUMBER(adjustNaN(p1->io_rate_read_bps) + adjustNaN(p1->io_rate_write_bps), adjustNaN(p2->io_rate_read_bps) + adjustNaN(p2->io_rate_write_bps));
case CGROUP:
return SPACESHIP_NULLSTR(p1->cgroup, p2->cgroup);
case OOM:
return SPACESHIP_NUMBER(p1->oom, p2->oom);
case PERCENT_CPU_DELAY:
return SPACESHIP_NUMBER(p1->cpu_delay_percent, p2->cpu_delay_percent);
case PERCENT_IO_DELAY:
return SPACESHIP_NUMBER(p1->blkio_delay_percent, p2->blkio_delay_percent);
case PERCENT_SWAP_DELAY:
return SPACESHIP_NUMBER(p1->swapin_delay_percent, p2->swapin_delay_percent);
case CTXT:
return SPACESHIP_NUMBER(p1->ctxt_diff, p2->ctxt_diff);
case SECATTR:
return SPACESHIP_NULLSTR(p1->secattr, p2->secattr);
default:
return Process_compareByKey_Base(v1, v2, key);
}
}
const ProcessClass PCPProcess_class = {
.super = {
.extends = Class(Process),
.display = Process_display,
.delete = Process_delete,
.compare = Process_compare
},
.writeField = PCPProcess_writeField,
.compareByKey = PCPProcess_compareByKey
};
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