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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2004 i-scream |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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* |
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* $Id: process_stats.c,v 1.18 2004/01/19 16:49:21 tdb Exp $ |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include "statgrab.h" |
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#if defined(SOLARIS) || defined(LINUX) |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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#include <dirent.h> |
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#include <string.h> |
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#endif |
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|
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#include "tools.h" |
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#ifdef SOLARIS |
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#include <procfs.h> |
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#include <limits.h> |
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#define PROC_LOCATION "/proc" |
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#define MAX_FILE_LENGTH PATH_MAX |
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#endif |
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#ifdef LINUX |
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#include <limits.h> |
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#define PROC_LOCATION "/proc" |
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#define MAX_FILE_LENGTH PATH_MAX |
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#endif |
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#ifdef ALLBSD |
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#include <stdlib.h> |
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#include <sys/param.h> |
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#include <sys/sysctl.h> |
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#include <sys/proc.h> |
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#endif |
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#ifdef FREEBSD |
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#include <sys/user.h> |
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#endif |
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|
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process_stat_t *get_process_stats(){ |
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|
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static process_stat_t process_stat; |
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|
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#if defined(SOLARIS) || defined(LINUX) |
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DIR *proc_dir; |
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struct dirent *dir_entry; |
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char filename[MAX_FILE_LENGTH]; |
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FILE *f; |
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#endif |
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#ifdef LINUX |
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char *line_ptr; |
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#endif |
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#ifdef SOLARIS |
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psinfo_t process_info; |
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#endif |
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#ifdef ALLBSD |
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int mib[3]; |
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size_t size; |
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struct kinfo_proc *kp_stats; |
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int procs, i; |
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#endif |
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|
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process_stat.sleeping=0; |
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process_stat.running=0; |
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process_stat.zombie=0; |
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process_stat.stopped=0; |
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process_stat.total=0; |
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|
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#if defined(SOLARIS) || defined(LINUX) |
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if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
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return NULL; |
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} |
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|
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while((dir_entry=readdir(proc_dir))!=NULL){ |
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if(atoi(dir_entry->d_name) == 0) continue; |
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|
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#ifdef SOLARIS |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
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#endif |
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#ifdef LINUX |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name); |
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#endif |
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|
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if((f=fopen(filename, "r"))==NULL){ |
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/* Open failed.. Process since vanished, or the path was too long. |
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* Ah well, move onwards to the next one */ |
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continue; |
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} |
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|
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#ifdef SOLARIS |
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fread(&process_info, sizeof(psinfo_t), 1, f); |
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if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++; |
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if(process_info.pr_lwp.pr_state==2) process_stat.running++; |
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if(process_info.pr_lwp.pr_state==3) process_stat.zombie++; |
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if(process_info.pr_lwp.pr_state==4) process_stat.stopped++; |
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if(process_info.pr_lwp.pr_state==6) process_stat.running++; |
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#endif |
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#ifdef LINUX |
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if((line_ptr=f_read_line(f, "State:"))==NULL){ |
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fclose(f); |
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continue; |
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} |
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if((line_ptr=strchr(line_ptr, '\t'))==NULL){ |
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fclose(f); |
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continue; |
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} |
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line_ptr++; |
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if(line_ptr=='\0'){ |
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fclose(f); |
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continue; |
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} |
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|
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if(*line_ptr=='S') process_stat.sleeping++; |
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if(*line_ptr=='R') process_stat.running++; |
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if(*line_ptr=='Z') process_stat.zombie++; |
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if(*line_ptr=='T') process_stat.stopped++; |
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if(*line_ptr=='D') process_stat.stopped++; |
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#endif |
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|
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fclose(f); |
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} |
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closedir(proc_dir); |
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#endif |
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#ifdef ALLBSD |
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mib[0] = CTL_KERN; |
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mib[1] = KERN_PROC; |
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mib[2] = KERN_PROC_ALL; |
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|
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if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
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return NULL; |
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} |
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|
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procs = size / sizeof(struct kinfo_proc); |
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|
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kp_stats = malloc(size); |
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if (kp_stats == NULL) { |
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return NULL; |
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} |
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|
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if (sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
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return NULL; |
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} |
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|
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for (i = 0; i < procs; i++) { |
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#ifdef FREEBSD5 |
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switch (kp_stats[i].ki_stat) { |
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#else |
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switch (kp_stats[i].kp_proc.p_stat) { |
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#endif |
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case SSLEEP: |
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process_stat.sleeping++; |
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break; |
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case SRUN: |
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case SIDL: |
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process_stat.running++; |
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break; |
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case SZOMB: |
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/*case SDEAD:*/ |
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process_stat.zombie++; |
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break; |
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case SSTOP: |
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process_stat.stopped++; |
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break; |
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} |
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} |
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#endif |
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|
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free(kp_stats); |
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|
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#ifdef CYGWIN |
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return NULL; |
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#endif |
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|
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process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped; |
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|
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return &process_stat; |
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} |
