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08829cbc3b
gcc gives warnings like this: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result Assign value to a variable, cast to (void) to discard it.
750 lines
24 KiB
C
750 lines
24 KiB
C
/*
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htop - LinuxProcessList.c
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(C) 2014 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "LinuxProcessList.h"
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#include "LinuxProcess.h"
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#include "CRT.h"
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#include "String.h"
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#include <errno.h>
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#include <sys/time.h>
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#include <sys/utsname.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <math.h>
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#include <string.h>
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#include <time.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <fcntl.h>
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/*{
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#include "ProcessList.h"
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typedef struct CPUData_ {
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unsigned long long int totalTime;
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unsigned long long int userTime;
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unsigned long long int systemTime;
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unsigned long long int systemAllTime;
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unsigned long long int idleAllTime;
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unsigned long long int idleTime;
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unsigned long long int niceTime;
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unsigned long long int ioWaitTime;
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unsigned long long int irqTime;
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unsigned long long int softIrqTime;
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unsigned long long int stealTime;
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unsigned long long int guestTime;
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unsigned long long int totalPeriod;
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unsigned long long int userPeriod;
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unsigned long long int systemPeriod;
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unsigned long long int systemAllPeriod;
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unsigned long long int idleAllPeriod;
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unsigned long long int idlePeriod;
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unsigned long long int nicePeriod;
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unsigned long long int ioWaitPeriod;
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unsigned long long int irqPeriod;
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unsigned long long int softIrqPeriod;
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unsigned long long int stealPeriod;
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unsigned long long int guestPeriod;
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} CPUData;
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typedef struct LinuxProcessList_ {
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ProcessList super;
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CPUData* cpus;
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} LinuxProcessList;
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#ifndef PROCDIR
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#define PROCDIR "/proc"
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#endif
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#ifndef PROCSTATFILE
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#define PROCSTATFILE PROCDIR "/stat"
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#endif
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#ifndef PROCMEMINFOFILE
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#define PROCMEMINFOFILE PROCDIR "/meminfo"
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#endif
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}*/
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ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
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LinuxProcessList* this = calloc(1, sizeof(LinuxProcessList));
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ProcessList* pl = &(this->super);
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ProcessList_init(pl, Class(LinuxProcess), usersTable, pidWhiteList, userId);
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// Update CPU count:
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FILE* file = fopen(PROCSTATFILE, "r");
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if (file == NULL) {
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CRT_fatalError("Cannot open " PROCSTATFILE);
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}
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char buffer[256];
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int cpus = -1;
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do {
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cpus++;
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char * s = fgets(buffer, 255, file);
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(void) s;
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} while (String_startsWith(buffer, "cpu"));
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fclose(file);
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pl->cpuCount = MAX(cpus - 1, 1);
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this->cpus = calloc(cpus, sizeof(CPUData));
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for (int i = 0; i < cpus; i++) {
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this->cpus[i].totalTime = 1;
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this->cpus[i].totalPeriod = 1;
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}
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return pl;
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}
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void ProcessList_delete(ProcessList* pl) {
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LinuxProcessList* this = (LinuxProcessList*) pl;
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ProcessList_done(pl);
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free(this->cpus);
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free(this);
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}
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static ssize_t xread(int fd, void *buf, size_t count) {
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// Read some bytes. Retry on EINTR and when we don't get as many bytes as we requested.
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size_t alreadyRead = 0;
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for(;;) {
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ssize_t res = read(fd, buf, count);
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if (res == -1 && errno == EINTR) continue;
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if (res > 0) {
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buf = ((char*)buf)+res;
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count -= res;
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alreadyRead += res;
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}
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if (res == -1) return -1;
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if (count == 0 || res == 0) return alreadyRead;
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}
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}
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static double jiffy = 0.0;
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static inline unsigned long long LinuxProcess_adjustTime(unsigned long long t) {
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if(jiffy == 0.0) jiffy = sysconf(_SC_CLK_TCK);
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double jiffytime = 1.0 / jiffy;
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return (unsigned long long) t * jiffytime * 100;
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}
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static bool LinuxProcessList_readStatFile(Process *process, const char* dirname, const char* name, char* command) {
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LinuxProcess* lp = (LinuxProcess*) process;
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/stat", dirname, name);
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int fd = open(filename, O_RDONLY);
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if (fd == -1)
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return false;
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static char buf[MAX_READ+1];
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int size = xread(fd, buf, MAX_READ);
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close(fd);
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if (size <= 0) return false;
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buf[size] = '\0';
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assert(process->pid == atoi(buf));
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char *location = strchr(buf, ' ');
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if (!location) return false;
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location += 2;
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char *end = strrchr(location, ')');
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if (!end) return false;
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int commsize = end - location;
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memcpy(command, location, commsize);
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command[commsize] = '\0';
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location = end + 2;
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process->state = location[0];
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location += 2;
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process->ppid = strtol(location, &location, 10);
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location += 1;
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process->pgrp = strtoul(location, &location, 10);
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location += 1;
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process->session = strtoul(location, &location, 10);
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location += 1;
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process->tty_nr = strtoul(location, &location, 10);
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location += 1;
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process->tpgid = strtol(location, &location, 10);
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location += 1;
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process->flags = strtoul(location, &location, 10);
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location += 1;
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process->minflt = strtoull(location, &location, 10);
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location += 1;
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lp->cminflt = strtoull(location, &location, 10);
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location += 1;
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process->majflt = strtoull(location, &location, 10);
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location += 1;
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lp->cmajflt = strtoull(location, &location, 10);
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location += 1;
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lp->utime = LinuxProcess_adjustTime(strtoull(location, &location, 10));
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location += 1;
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lp->stime = LinuxProcess_adjustTime(strtoull(location, &location, 10));
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location += 1;
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lp->cutime = LinuxProcess_adjustTime(strtoull(location, &location, 10));
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location += 1;
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lp->cstime = LinuxProcess_adjustTime(strtoull(location, &location, 10));
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location += 1;
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process->priority = strtol(location, &location, 10);
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location += 1;
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process->nice = strtol(location, &location, 10);
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location += 1;
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process->nlwp = strtol(location, &location, 10);
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location += 1;
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for (int i=0; i<17; i++) location = strchr(location, ' ')+1;
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process->exit_signal = strtol(location, &location, 10);
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location += 1;
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assert(location != NULL);
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process->processor = strtol(location, &location, 10);
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process->time = lp->utime + lp->stime;
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return true;
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}
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static bool LinuxProcessList_statProcessDir(Process* process, const char* dirname, char* name, time_t curTime) {
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char filename[MAX_NAME+1];
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filename[MAX_NAME] = '\0';
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snprintf(filename, MAX_NAME, "%s/%s", dirname, name);
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struct stat sstat;
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int statok = stat(filename, &sstat);
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if (statok == -1)
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return false;
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process->st_uid = sstat.st_uid;
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struct tm date;
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time_t ctime = sstat.st_ctime;
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process->starttime_ctime = ctime;
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(void) localtime_r((time_t*) &ctime, &date);
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strftime(process->starttime_show, 7, ((ctime > curTime - 86400) ? "%R " : "%b%d "), &date);
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return true;
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}
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#ifdef HAVE_TASKSTATS
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static void LinuxProcessList_readIoFile(LinuxProcess* process, const char* dirname, char* name, unsigned long long now) {
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char filename[MAX_NAME+1];
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filename[MAX_NAME] = '\0';
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snprintf(filename, MAX_NAME, "%s/%s/io", dirname, name);
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int fd = open(filename, O_RDONLY);
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if (fd == -1) {
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process->io_rate_read_bps = -1;
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process->io_rate_write_bps = -1;
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return;
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}
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char buffer[1024];
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ssize_t buflen = xread(fd, buffer, 1023);
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close(fd);
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if (buflen < 1) return;
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buffer[buflen] = '\0';
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unsigned long long last_read = process->io_read_bytes;
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unsigned long long last_write = process->io_write_bytes;
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char *buf = buffer;
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char *line = NULL;
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while ((line = strsep(&buf, "\n")) != NULL) {
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switch (line[0]) {
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case 'r':
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if (line[1] == 'c' && strncmp(line+2, "har: ", 5) == 0)
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process->io_rchar = strtoull(line+7, NULL, 10);
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else if (strncmp(line+1, "ead_bytes: ", 11) == 0) {
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process->io_read_bytes = strtoull(line+12, NULL, 10);
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process->io_rate_read_bps =
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((double)(process->io_read_bytes - last_read))/(((double)(now - process->io_rate_read_time))/1000);
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process->io_rate_read_time = now;
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}
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break;
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case 'w':
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if (line[1] == 'c' && strncmp(line+2, "har: ", 5) == 0)
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process->io_wchar = strtoull(line+7, NULL, 10);
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else if (strncmp(line+1, "rite_bytes: ", 12) == 0) {
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process->io_write_bytes = strtoull(line+13, NULL, 10);
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process->io_rate_write_bps =
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((double)(process->io_write_bytes - last_write))/(((double)(now - process->io_rate_write_time))/1000);
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process->io_rate_write_time = now;
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}
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break;
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case 's':
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if (line[5] == 'r' && strncmp(line+1, "yscr: ", 6) == 0)
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process->io_syscr = strtoull(line+7, NULL, 10);
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else if (strncmp(line+1, "yscw: ", 6) == 0)
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sscanf(line, "syscw: %32llu", &process->io_syscw);
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process->io_syscw = strtoull(line+7, NULL, 10);
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break;
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case 'c':
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if (strncmp(line+1, "ancelled_write_bytes: ", 22) == 0)
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process->io_cancelled_write_bytes = strtoull(line+23, NULL, 10);
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}
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}
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}
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#endif
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static bool LinuxProcessList_readStatmFile(LinuxProcess* process, const char* dirname, const char* name) {
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/statm", dirname, name);
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int fd = open(filename, O_RDONLY);
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if (fd == -1)
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return false;
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char buf[256];
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ssize_t rres = xread(fd, buf, 255);
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close(fd);
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if (rres < 1) return false;
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char *p = buf;
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errno = 0;
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process->super.m_size = strtol(p, &p, 10); if (*p == ' ') p++;
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process->super.m_resident = strtol(p, &p, 10); if (*p == ' ') p++;
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process->m_share = strtol(p, &p, 10); if (*p == ' ') p++;
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process->m_trs = strtol(p, &p, 10); if (*p == ' ') p++;
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process->m_lrs = strtol(p, &p, 10); if (*p == ' ') p++;
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process->m_drs = strtol(p, &p, 10); if (*p == ' ') p++;
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process->m_dt = strtol(p, &p, 10);
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return (errno == 0);
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}
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#ifdef HAVE_OPENVZ
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static void LinuxProcessList_readOpenVZData(LinuxProcess* process, const char* dirname, const char* name) {
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if ( (access("/proc/vz", R_OK) != 0)) {
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process->vpid = process->super.pid;
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process->ctid = 0;
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return;
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}
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/stat", dirname, name);
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FILE* file = fopen(filename, "r");
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if (!file)
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return;
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(void) fscanf(file,
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"%*32u %*32s %*1c %*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %*32u %*32u %*32u %*32u %*32u "
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"%*32u %*32u %32u %32u",
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&process->vpid, &process->ctid);
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fclose(file);
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return;
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}
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#endif
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#ifdef HAVE_CGROUP
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static void LinuxProcessList_readCGroupFile(LinuxProcess* process, const char* dirname, const char* name) {
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/cgroup", dirname, name);
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FILE* file = fopen(filename, "r");
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if (!file) {
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process->cgroup = strdup("");
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return;
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}
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char output[256];
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output[0] = '\0';
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char* at = output;
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int left = 255;
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while (!feof(file) && left > 0) {
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char buffer[256];
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char *ok = fgets(buffer, 255, file);
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if (!ok) break;
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char* group = strchr(buffer, ':');
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if (!group) break;
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if (at != output) {
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*at = ';';
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at++;
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left--;
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}
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int wrote = snprintf(at, left, "%s", group);
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left -= wrote;
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}
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fclose(file);
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free(process->cgroup);
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process->cgroup = strdup(output);
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}
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#endif
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#ifdef HAVE_VSERVER
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static void LinuxProcessList_readVServerData(LinuxProcess* process, const char* dirname, const char* name) {
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/status", dirname, name);
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FILE* file = fopen(filename, "r");
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if (!file)
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return;
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char buffer[256];
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process->vxid = 0;
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while (fgets(buffer, 255, file)) {
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if (String_startsWith(buffer, "VxID:")) {
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int vxid;
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int ok = sscanf(buffer, "VxID:\t%32d", &vxid);
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if (ok >= 1) {
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process->vxid = vxid;
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}
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}
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#if defined HAVE_ANCIENT_VSERVER
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else if (String_startsWith(buffer, "s_context:")) {
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int vxid;
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int ok = sscanf(buffer, "s_context:\t%32d", &vxid);
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if (ok >= 1) {
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process->vxid = vxid;
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}
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}
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#endif
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}
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fclose(file);
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}
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#endif
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static void LinuxProcessList_readOomData(LinuxProcess* process, const char* dirname, const char* name) {
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/oom_score", dirname, name);
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FILE* file = fopen(filename, "r");
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if (!file)
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return;
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char buffer[256];
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if (fgets(buffer, 255, file)) {
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unsigned int oom;
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int ok = sscanf(buffer, "%32u", &oom);
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if (ok >= 1) {
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process->oom = oom;
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}
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}
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fclose(file);
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}
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static bool LinuxProcessList_readCmdlineFile(Process* process, const char* dirname, const char* name) {
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if (Process_isKernelThread(process))
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return true;
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char filename[MAX_NAME+1];
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snprintf(filename, MAX_NAME, "%s/%s/cmdline", dirname, name);
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int fd = open(filename, O_RDONLY);
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if (fd == -1)
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return false;
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char command[4096+1]; // max cmdline length on Linux
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int amtRead = xread(fd, command, sizeof(command) - 1);
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close(fd);
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int tokenEnd = 0;
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if (amtRead > 0) {
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for (int i = 0; i < amtRead; i++)
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if (command[i] == '\0' || command[i] == '\n') {
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if (tokenEnd == 0) {
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tokenEnd = i;
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}
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command[i] = ' ';
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}
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}
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if (tokenEnd == 0) {
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tokenEnd = amtRead;
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}
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command[amtRead] = '\0';
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free(process->comm);
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process->comm = strdup(command);
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process->basenameOffset = tokenEnd;
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return true;
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}
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static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char* dirname, Process* parent, double period, struct timeval tv) {
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ProcessList* pl = (ProcessList*) this;
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DIR* dir;
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struct dirent* entry;
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Settings* settings = pl->settings;
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time_t curTime = tv.tv_sec;
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#ifdef HAVE_TASKSTATS
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unsigned long long now = tv.tv_sec*1000LL+tv.tv_usec/1000LL;
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#endif
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dir = opendir(dirname);
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if (!dir) return false;
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int cpus = pl->cpuCount;
|
|
bool hideKernelThreads = settings->hideKernelThreads;
|
|
bool hideUserlandThreads = settings->hideUserlandThreads;
|
|
while ((entry = readdir(dir)) != NULL) {
|
|
char* name = entry->d_name;
|
|
|
|
// The RedHat kernel hides threads with a dot.
|
|
// I believe this is non-standard.
|
|
if ((!settings->hideThreads) && name[0] == '.') {
|
|
name++;
|
|
}
|
|
|
|
// Just skip all non-number directories.
|
|
if (name[0] < '0' || name[0] > '9') {
|
|
continue;
|
|
}
|
|
|
|
// filename is a number: process directory
|
|
int pid = atoi(name);
|
|
|
|
if (parent && pid == parent->pid)
|
|
continue;
|
|
|
|
if (pid <= 0)
|
|
continue;
|
|
|
|
bool preExisting = false;
|
|
Process* proc = ProcessList_getProcess(pl, pid, &preExisting, (Process_New) LinuxProcess_new);
|
|
proc->tgid = parent ? parent->pid : pid;
|
|
|
|
LinuxProcess* lp = (LinuxProcess*) proc;
|
|
|
|
char subdirname[MAX_NAME+1];
|
|
snprintf(subdirname, MAX_NAME, "%s/%s/task", dirname, name);
|
|
LinuxProcessList_recurseProcTree(this, subdirname, proc, period, tv);
|
|
|
|
#ifdef HAVE_TASKSTATS
|
|
if (settings->flags & PROCESS_FLAG_IO)
|
|
LinuxProcessList_readIoFile(lp, dirname, name, now);
|
|
#endif
|
|
|
|
if (! LinuxProcessList_readStatmFile(lp, dirname, name))
|
|
goto errorReadingProcess;
|
|
|
|
proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc)));
|
|
|
|
char command[MAX_NAME+1];
|
|
unsigned long long int lasttimes = (lp->utime + lp->stime);
|
|
if (! LinuxProcessList_readStatFile(proc, dirname, name, command))
|
|
goto errorReadingProcess;
|
|
if (settings->flags & PROCESS_FLAG_LINUX_IOPRIO)
|
|
LinuxProcess_updateIOPriority(lp);
|
|
float percent_cpu = (lp->utime + lp->stime - lasttimes) / period * 100.0;
|
|
proc->percent_cpu = MAX(MIN(percent_cpu, cpus*100.0), 0.0);
|
|
if (isnan(proc->percent_cpu)) proc->percent_cpu = 0.0;
|
|
proc->percent_mem = (proc->m_resident * PAGE_SIZE_KB) / (double)(pl->totalMem) * 100.0;
|
|
|
|
if(!preExisting) {
|
|
|
|
if (! LinuxProcessList_statProcessDir(proc, dirname, name, curTime))
|
|
goto errorReadingProcess;
|
|
|
|
proc->user = UsersTable_getRef(pl->usersTable, proc->st_uid);
|
|
|
|
#ifdef HAVE_OPENVZ
|
|
if (settings->flags & PROCESS_FLAG_LINUX_OPENVZ) {
|
|
LinuxProcessList_readOpenVZData(lp, dirname, name);
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_VSERVER
|
|
if (settings->flags & PROCESS_FLAG_LINUX_VSERVER) {
|
|
LinuxProcessList_readVServerData(lp, dirname, name);
|
|
}
|
|
#endif
|
|
|
|
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name)) {
|
|
goto errorReadingProcess;
|
|
}
|
|
|
|
ProcessList_add(pl, proc);
|
|
} else {
|
|
if (settings->updateProcessNames) {
|
|
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name)) {
|
|
goto errorReadingProcess;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_CGROUP
|
|
if (settings->flags & PROCESS_FLAG_LINUX_CGROUP)
|
|
LinuxProcessList_readCGroupFile(lp, dirname, name);
|
|
#endif
|
|
|
|
if (settings->flags & PROCESS_FLAG_LINUX_OOM)
|
|
LinuxProcessList_readOomData(lp, dirname, name);
|
|
|
|
if (proc->state == 'Z') {
|
|
free(proc->comm);
|
|
proc->basenameOffset = -1;
|
|
proc->comm = strdup(command);
|
|
} else if (Process_isThread(proc)) {
|
|
if (settings->showThreadNames || Process_isKernelThread(proc) || proc->state == 'Z') {
|
|
free(proc->comm);
|
|
proc->basenameOffset = -1;
|
|
proc->comm = strdup(command);
|
|
} else if (settings->showThreadNames) {
|
|
if (! LinuxProcessList_readCmdlineFile(proc, dirname, name))
|
|
goto errorReadingProcess;
|
|
}
|
|
if (Process_isKernelThread(proc)) {
|
|
pl->kernelThreads++;
|
|
} else {
|
|
pl->userlandThreads++;
|
|
}
|
|
}
|
|
|
|
pl->totalTasks++;
|
|
if (proc->state == 'R')
|
|
pl->runningTasks++;
|
|
proc->updated = true;
|
|
continue;
|
|
|
|
// Exception handler.
|
|
errorReadingProcess: {
|
|
if (preExisting) {
|
|
ProcessList_remove(pl, proc);
|
|
} else {
|
|
Process_delete((Object*)proc);
|
|
}
|
|
}
|
|
}
|
|
closedir(dir);
|
|
return true;
|
|
}
|
|
|
|
static inline void LinuxProcessList_scanMemoryInfo(ProcessList* this) {
|
|
unsigned long long int swapFree = 0;
|
|
|
|
FILE* file = fopen(PROCMEMINFOFILE, "r");
|
|
if (file == NULL) {
|
|
CRT_fatalError("Cannot open " PROCMEMINFOFILE);
|
|
}
|
|
char buffer[128];
|
|
while (fgets(buffer, 128, file)) {
|
|
|
|
switch (buffer[0]) {
|
|
case 'M':
|
|
if (String_startsWith(buffer, "MemTotal:"))
|
|
sscanf(buffer, "MemTotal: %32llu kB", &this->totalMem);
|
|
else if (String_startsWith(buffer, "MemFree:"))
|
|
sscanf(buffer, "MemFree: %32llu kB", &this->freeMem);
|
|
else if (String_startsWith(buffer, "MemShared:"))
|
|
sscanf(buffer, "MemShared: %32llu kB", &this->sharedMem);
|
|
break;
|
|
case 'B':
|
|
if (String_startsWith(buffer, "Buffers:"))
|
|
sscanf(buffer, "Buffers: %32llu kB", &this->buffersMem);
|
|
break;
|
|
case 'C':
|
|
if (String_startsWith(buffer, "Cached:"))
|
|
sscanf(buffer, "Cached: %32llu kB", &this->cachedMem);
|
|
break;
|
|
case 'S':
|
|
if (String_startsWith(buffer, "SwapTotal:"))
|
|
sscanf(buffer, "SwapTotal: %32llu kB", &this->totalSwap);
|
|
if (String_startsWith(buffer, "SwapFree:"))
|
|
sscanf(buffer, "SwapFree: %32llu kB", &swapFree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
this->usedMem = this->totalMem - this->freeMem;
|
|
this->usedSwap = this->totalSwap - swapFree;
|
|
fclose(file);
|
|
}
|
|
|
|
static inline double LinuxProcessList_scanCPUTime(LinuxProcessList* this) {
|
|
unsigned long long int usertime, nicetime, systemtime, idletime;
|
|
|
|
FILE* file = fopen(PROCSTATFILE, "r");
|
|
if (file == NULL) {
|
|
CRT_fatalError("Cannot open " PROCSTATFILE);
|
|
}
|
|
int cpus = this->super.cpuCount;
|
|
assert(cpus > 0);
|
|
for (int i = 0; i <= cpus; i++) {
|
|
char buffer[256];
|
|
int cpuid;
|
|
unsigned long long int ioWait, irq, softIrq, steal, guest, guestnice;
|
|
unsigned long long int systemalltime, idlealltime, totaltime, virtalltime;
|
|
ioWait = irq = softIrq = steal = guest = guestnice = 0;
|
|
// Dependending on your kernel version,
|
|
// 5, 7, 8 or 9 of these fields will be set.
|
|
// The rest will remain at zero.
|
|
char* ok = fgets(buffer, 255, file);
|
|
if (!ok) buffer[0] = '\0';
|
|
if (i == 0)
|
|
sscanf(buffer, "cpu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu", &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
|
|
else {
|
|
sscanf(buffer, "cpu%4d %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu %16llu", &cpuid, &usertime, &nicetime, &systemtime, &idletime, &ioWait, &irq, &softIrq, &steal, &guest, &guestnice);
|
|
assert(cpuid == i - 1);
|
|
}
|
|
// Guest time is already accounted in usertime
|
|
usertime = usertime - guest;
|
|
nicetime = nicetime - guestnice;
|
|
// Fields existing on kernels >= 2.6
|
|
// (and RHEL's patched kernel 2.4...)
|
|
idlealltime = idletime + ioWait;
|
|
systemalltime = systemtime + irq + softIrq;
|
|
virtalltime = guest + guestnice;
|
|
totaltime = usertime + nicetime + systemalltime + idlealltime + steal + virtalltime;
|
|
CPUData* cpuData = &(this->cpus[i]);
|
|
assert (usertime >= cpuData->userTime);
|
|
assert (nicetime >= cpuData->niceTime);
|
|
assert (systemtime >= cpuData->systemTime);
|
|
assert (idletime >= cpuData->idleTime);
|
|
assert (totaltime >= cpuData->totalTime);
|
|
assert (systemalltime >= cpuData->systemAllTime);
|
|
assert (idlealltime >= cpuData->idleAllTime);
|
|
assert (ioWait >= cpuData->ioWaitTime);
|
|
assert (irq >= cpuData->irqTime);
|
|
assert (softIrq >= cpuData->softIrqTime);
|
|
assert (steal >= cpuData->stealTime);
|
|
assert (virtalltime >= cpuData->guestTime);
|
|
cpuData->userPeriod = usertime - cpuData->userTime;
|
|
cpuData->nicePeriod = nicetime - cpuData->niceTime;
|
|
cpuData->systemPeriod = systemtime - cpuData->systemTime;
|
|
cpuData->systemAllPeriod = systemalltime - cpuData->systemAllTime;
|
|
cpuData->idleAllPeriod = idlealltime - cpuData->idleAllTime;
|
|
cpuData->idlePeriod = idletime - cpuData->idleTime;
|
|
cpuData->ioWaitPeriod = ioWait - cpuData->ioWaitTime;
|
|
cpuData->irqPeriod = irq - cpuData->irqTime;
|
|
cpuData->softIrqPeriod = softIrq - cpuData->softIrqTime;
|
|
cpuData->stealPeriod = steal - cpuData->stealTime;
|
|
cpuData->guestPeriod = virtalltime - cpuData->guestTime;
|
|
cpuData->totalPeriod = totaltime - cpuData->totalTime;
|
|
cpuData->userTime = usertime;
|
|
cpuData->niceTime = nicetime;
|
|
cpuData->systemTime = systemtime;
|
|
cpuData->systemAllTime = systemalltime;
|
|
cpuData->idleAllTime = idlealltime;
|
|
cpuData->idleTime = idletime;
|
|
cpuData->ioWaitTime = ioWait;
|
|
cpuData->irqTime = irq;
|
|
cpuData->softIrqTime = softIrq;
|
|
cpuData->stealTime = steal;
|
|
cpuData->guestTime = virtalltime;
|
|
cpuData->totalTime = totaltime;
|
|
}
|
|
double period = (double)this->cpus[0].totalPeriod / cpus; fclose(file);
|
|
return period;
|
|
}
|
|
|
|
void ProcessList_goThroughEntries(ProcessList* super) {
|
|
LinuxProcessList* this = (LinuxProcessList*) super;
|
|
|
|
LinuxProcessList_scanMemoryInfo(super);
|
|
double period = LinuxProcessList_scanCPUTime(this);
|
|
|
|
struct timeval tv;
|
|
gettimeofday(&tv, NULL);
|
|
LinuxProcessList_recurseProcTree(this, PROCDIR, NULL, period, tv);
|
|
}
|