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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 1.47 2004/04/05 00:21:29 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" |
26 |
#endif |
27 |
|
28 |
#include "statgrab.h" |
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#include "tools.h" |
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#include "vector.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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#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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#include <unistd.h> |
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#include <sys/stat.h> |
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#include <fcntl.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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#if defined(FREEBSD) || defined(DFBSD) |
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#include <sys/user.h> |
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#else |
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#include <sys/proc.h> |
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#endif |
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#include <string.h> |
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#include <paths.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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#include <kvm.h> |
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#include <tools.h> |
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#endif |
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#include <unistd.h> |
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#endif |
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|
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static void proc_state_init(proc_state_t *s) { |
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s->process_name = NULL; |
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s->proctitle = NULL; |
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} |
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|
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static void proc_state_destroy(proc_state_t *s) { |
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free(s->process_name); |
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free(s->proctitle); |
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} |
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|
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int get_proc_snapshot(proc_state_t **ps){ |
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VECTOR_DECLARE_STATIC(proc_state, proc_state_t, 64, |
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proc_state_init, proc_state_destroy); |
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int proc_state_size = 0; |
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proc_state_t *proc_state_ptr; |
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#ifdef ALLBSD |
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int mib[4]; |
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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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char *proctitle; |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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kvm_t *kvmd; |
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char **args; |
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int alloc; |
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char *proctitletmp; |
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#else |
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long buflen; |
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char *p; |
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#endif |
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#endif |
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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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#ifdef SOLARIS |
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psinfo_t process_info; |
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#endif |
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#ifdef LINUX |
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char s; |
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/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */ |
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char ps_name[4096]; |
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char *ptr; |
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VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL); |
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unsigned long stime, utime; |
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int x; |
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int fn; |
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int len; |
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int rc; |
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#endif |
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|
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if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
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return -1; |
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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/stat", dir_entry->d_name); |
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#endif |
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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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#ifdef SOLARIS |
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fread(&process_info, sizeof(psinfo_t), 1, f); |
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#endif |
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|
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if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) { |
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return -1; |
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} |
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proc_state_ptr = proc_state+proc_state_size; |
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|
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#ifdef SOLARIS |
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proc_state_ptr->pid = process_info.pr_pid; |
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proc_state_ptr->parent = process_info.pr_ppid; |
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proc_state_ptr->pgid = process_info.pr_pgid; |
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proc_state_ptr->uid = process_info.pr_uid; |
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proc_state_ptr->euid = process_info.pr_euid; |
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proc_state_ptr->gid = process_info.pr_gid; |
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proc_state_ptr->egid = process_info.pr_egid; |
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proc_state_ptr->proc_size = (process_info.pr_size) * 1024; |
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proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024; |
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proc_state_ptr->time_spent = process_info.pr_time.tv_sec; |
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proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000; |
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proc_state_ptr->process_name = strdup(process_info.pr_fname); |
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proc_state_ptr->proctitle = strdup(process_info.pr_psargs); |
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|
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if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING; |
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if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING; |
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if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE; |
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if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED; |
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if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING; |
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#endif |
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#ifdef LINUX |
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x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*u %*u %*u %*u %*u %lu %lu %*d %*d %*d %d %*d %*d %*u %llu %llu %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %*d\n", &(proc_state_ptr->pid), ps_name, &s, &(proc_state_ptr->parent), &(proc_state_ptr->pgid), &utime, &stime, &(proc_state_ptr->nice), &(proc_state_ptr->proc_size), &(proc_state_ptr->proc_resident)); |
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proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize(); |
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if(s == 'S') proc_state_ptr->state = SLEEPING; |
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if(s == 'R') proc_state_ptr->state = RUNNING; |
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if(s == 'Z') proc_state_ptr->state = ZOMBIE; |
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if(s == 'T') proc_state_ptr->state = STOPPED; |
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if(s == 'D') proc_state_ptr->state = STOPPED; |
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|
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/* pa_name[0] should = '(' */ |
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ptr = strchr(&ps_name[1], ')'); |
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if(ptr !=NULL) *ptr='\0'; |
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|
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if (update_string(&proc_state_ptr->process_name, |
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&ps_name[1]) == NULL) { |
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return -1; |
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} |
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|
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/* Need to do cpu */ |
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|
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|
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fclose(f); |
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|
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/* proctitle */ |
197 |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name); |
198 |
|
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if((fn=open(filename, O_RDONLY)) == -1){ |
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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; |
203 |
} |
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|
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#define READ_BLOCK_SIZE 128 |
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len = 0; |
207 |
do { |
208 |
if (VECTOR_RESIZE(psargs, len + READ_BLOCK_SIZE + 1) < 0) { |
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return -1; |
210 |
} |
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rc = read(fn, psargs + len, READ_BLOCK_SIZE); |
212 |
if (rc > 0) { |
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len += rc; |
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} |
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} while (rc == READ_BLOCK_SIZE); |
216 |
close(fn); |
217 |
|
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if (rc == -1) { |
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/* Read failed; move on. */ |
220 |
continue; |
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} |
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|
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/* Turn \0s into spaces within the command line. */ |
224 |
ptr = psargs; |
225 |
for(x = 0; x < len; x++) { |
226 |
if (*ptr == '\0') *ptr = ' '; |
227 |
ptr++; |
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} |
229 |
/* for safety's sake */ |
230 |
psargs[len] = '\0'; |
231 |
|
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if (update_string(&proc_state_ptr->proctitle, psargs) == NULL) { |
233 |
return -1; |
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} |
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#endif |
236 |
|
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proc_state_size++; |
238 |
} |
239 |
closedir(proc_dir); |
240 |
#endif |
241 |
|
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#ifdef ALLBSD |
243 |
mib[0] = CTL_KERN; |
244 |
mib[1] = KERN_PROC; |
245 |
mib[2] = KERN_PROC_ALL; |
246 |
|
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if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
248 |
return -1; |
249 |
} |
250 |
|
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procs = size / sizeof(struct kinfo_proc); |
252 |
|
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kp_stats = malloc(size); |
254 |
if(kp_stats == NULL) { |
255 |
return -1; |
256 |
} |
257 |
|
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if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
259 |
free(kp_stats); |
260 |
return -1; |
261 |
} |
262 |
|
263 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
264 |
kvmd = get_kvm2(); |
265 |
#endif |
266 |
|
267 |
for (i = 0; i < procs; i++) { |
268 |
const char *name; |
269 |
|
270 |
if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) { |
271 |
return -1; |
272 |
} |
273 |
proc_state_ptr = proc_state+proc_state_size; |
274 |
|
275 |
#ifdef FREEBSD5 |
276 |
name = kp_stats[i].ki_comm; |
277 |
#elif defined(DFBSD) |
278 |
name = kp_stats[i].kp_thread.td_comm; |
279 |
#else |
280 |
name = kp_stats[i].kp_proc.p_comm; |
281 |
#endif |
282 |
if (update_string(&proc_state_ptr->process_name, name) == NULL) { |
283 |
return -1; |
284 |
} |
285 |
|
286 |
#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD) |
287 |
size = sizeof(buflen); |
288 |
|
289 |
#ifdef FREEBSD5 |
290 |
if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) { |
291 |
return -1; |
292 |
} |
293 |
#else |
294 |
mib[1] = KERN_ARGMAX; |
295 |
|
296 |
if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) { |
297 |
return -1; |
298 |
} |
299 |
#endif |
300 |
|
301 |
proctitle = malloc(buflen); |
302 |
if(proctitle == NULL) { |
303 |
return -1; |
304 |
} |
305 |
|
306 |
size = buflen; |
307 |
|
308 |
#ifdef FREEBSD5 |
309 |
mib[2] = KERN_PROC_ARGS; |
310 |
mib[3] = kp_stats[i].ki_pid; |
311 |
#else |
312 |
mib[1] = KERN_PROC_ARGS; |
313 |
mib[2] = kp_stats[i].kp_proc.p_pid; |
314 |
mib[3] = KERN_PROC_ARGV; |
315 |
#endif |
316 |
|
317 |
free(proc_state_ptr->proctitle); |
318 |
if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) { |
319 |
free(proctitle); |
320 |
proc_state_ptr->proctitle = NULL; |
321 |
} |
322 |
else if(size > 0) { |
323 |
proc_state_ptr->proctitle = malloc(size+1); |
324 |
if(proc_state_ptr->proctitle == NULL) { |
325 |
return -1; |
326 |
} |
327 |
p = proctitle; |
328 |
proc_state_ptr->proctitle[0] = NULL; |
329 |
do { |
330 |
strlcat(proc_state_ptr->proctitle, p, size+1); |
331 |
strlcat(proc_state_ptr->proctitle, " ", size+1); |
332 |
p += strlen(p) + 1; |
333 |
} while (p < proctitle + size); |
334 |
free(proctitle); |
335 |
/* remove trailing space */ |
336 |
proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0'; |
337 |
} |
338 |
else { |
339 |
free(proctitle); |
340 |
proc_state_ptr->proctitle = NULL; |
341 |
} |
342 |
#else |
343 |
free(proc_state_ptr->proctitle); |
344 |
if(kvmd != NULL) { |
345 |
args = kvm_getargv(kvmd, &(kp_stats[i]), 0); |
346 |
if(args != NULL) { |
347 |
alloc = 1; |
348 |
proctitle = malloc(alloc); |
349 |
if(proctitle == NULL) { |
350 |
return -1; |
351 |
} |
352 |
while(*args != NULL) { |
353 |
if(strlen(proctitle) + strlen(*args) >= alloc) { |
354 |
alloc = (alloc + strlen(*args)) * 2; |
355 |
proctitletmp = realloc(proctitle, alloc); |
356 |
if(proctitletmp == NULL) { |
357 |
return -1; |
358 |
} |
359 |
proctitle = proctitletmp; |
360 |
} |
361 |
strlcat(proctitle, *args, alloc); |
362 |
strlcat(proctitle, " ", alloc); |
363 |
args++; |
364 |
} |
365 |
/* remove trailing space */ |
366 |
proctitle[strlen(proctitle)-1] = '\0'; |
367 |
proc_state_ptr->proctitle = proctitle; |
368 |
} |
369 |
else { |
370 |
proc_state_ptr->proctitle = NULL; |
371 |
} |
372 |
} |
373 |
else { |
374 |
proc_state_ptr->proctitle = NULL; |
375 |
} |
376 |
#endif |
377 |
|
378 |
#ifdef FREEBSD5 |
379 |
proc_state_ptr->pid = kp_stats[i].ki_pid; |
380 |
proc_state_ptr->parent = kp_stats[i].ki_ppid; |
381 |
proc_state_ptr->pgid = kp_stats[i].ki_pgid; |
382 |
#else |
383 |
proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid; |
384 |
proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid; |
385 |
proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid; |
386 |
#endif |
387 |
|
388 |
#ifdef FREEBSD5 |
389 |
proc_state_ptr->uid = kp_stats[i].ki_ruid; |
390 |
proc_state_ptr->euid = kp_stats[i].ki_uid; |
391 |
proc_state_ptr->gid = kp_stats[i].ki_rgid; |
392 |
proc_state_ptr->egid = kp_stats[i].ki_svgid; |
393 |
#elif defined(DFBSD) |
394 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid; |
395 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid; |
396 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid; |
397 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid; |
398 |
#else |
399 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid; |
400 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid; |
401 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid; |
402 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid; |
403 |
#endif |
404 |
|
405 |
#ifdef FREEBSD5 |
406 |
proc_state_ptr->proc_size = kp_stats[i].ki_size; |
407 |
/* This is in pages */ |
408 |
proc_state_ptr->proc_resident = |
409 |
kp_stats[i].ki_rssize * getpagesize(); |
410 |
/* This is in microseconds */ |
411 |
proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000; |
412 |
proc_state_ptr->cpu_percent = |
413 |
((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0; |
414 |
proc_state_ptr->nice = kp_stats[i].ki_nice; |
415 |
#else |
416 |
proc_state_ptr->proc_size = |
417 |
kp_stats[i].kp_eproc.e_vm.vm_map.size; |
418 |
/* This is in pages */ |
419 |
proc_state_ptr->proc_resident = |
420 |
kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize(); |
421 |
#if defined(NETBSD) || defined(OPENBSD) |
422 |
proc_state_ptr->time_spent = |
423 |
kp_stats[i].kp_proc.p_rtime.tv_sec; |
424 |
#elif defined(DFBSD) |
425 |
proc_state_ptr->time_spent = |
426 |
( kp_stats[i].kp_thread.td_uticks + |
427 |
kp_stats[i].kp_thread.td_sticks + |
428 |
kp_stats[i].kp_thread.td_iticks ) / 1000000; |
429 |
#else |
430 |
/* This is in microseconds */ |
431 |
proc_state_ptr->time_spent = |
432 |
kp_stats[i].kp_proc.p_runtime / 1000000; |
433 |
#endif |
434 |
proc_state_ptr->cpu_percent = |
435 |
((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0; |
436 |
proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice; |
437 |
#endif |
438 |
|
439 |
#ifdef FREEBSD5 |
440 |
switch (kp_stats[i].ki_stat) { |
441 |
#else |
442 |
switch (kp_stats[i].kp_proc.p_stat) { |
443 |
#endif |
444 |
case SIDL: |
445 |
case SRUN: |
446 |
#ifdef SONPROC |
447 |
case SONPROC: /* NetBSD */ |
448 |
#endif |
449 |
proc_state_ptr->state = RUNNING; |
450 |
break; |
451 |
case SSLEEP: |
452 |
#ifdef SWAIT |
453 |
case SWAIT: /* FreeBSD 5 */ |
454 |
#endif |
455 |
#ifdef SLOCK |
456 |
case SLOCK: /* FreeBSD 5 */ |
457 |
#endif |
458 |
proc_state_ptr->state = SLEEPING; |
459 |
break; |
460 |
case SSTOP: |
461 |
proc_state_ptr->state = STOPPED; |
462 |
break; |
463 |
case SZOMB: |
464 |
#ifdef SDEAD |
465 |
case SDEAD: /* OpenBSD & NetBSD */ |
466 |
#endif |
467 |
proc_state_ptr->state = ZOMBIE; |
468 |
break; |
469 |
default: |
470 |
proc_state_ptr->state = UNKNOWN; |
471 |
break; |
472 |
} |
473 |
proc_state_size++; |
474 |
} |
475 |
|
476 |
free(kp_stats); |
477 |
#endif |
478 |
|
479 |
#ifdef CYGWIN |
480 |
return -1; |
481 |
#endif |
482 |
|
483 |
*ps = proc_state; |
484 |
return proc_state_size; |
485 |
} |
486 |
|
487 |
process_stat_t *get_process_stats() { |
488 |
static process_stat_t process_stat; |
489 |
proc_state_t *ps; |
490 |
int ps_size, x; |
491 |
|
492 |
process_stat.sleeping = 0; |
493 |
process_stat.running = 0; |
494 |
process_stat.zombie = 0; |
495 |
process_stat.stopped = 0; |
496 |
process_stat.total = 0; |
497 |
|
498 |
ps_size = get_proc_snapshot(&ps); |
499 |
|
500 |
if(ps_size < 0) { |
501 |
return NULL; |
502 |
} |
503 |
|
504 |
for(x = 0; x < ps_size; x++) { |
505 |
switch (ps->state) { |
506 |
case RUNNING: |
507 |
process_stat.running++; |
508 |
break; |
509 |
case SLEEPING: |
510 |
process_stat.sleeping++; |
511 |
break; |
512 |
case STOPPED: |
513 |
process_stat.stopped++; |
514 |
break; |
515 |
case ZOMBIE: |
516 |
process_stat.zombie++; |
517 |
break; |
518 |
default: |
519 |
/* currently no mapping for UNKNOWN in process_stat_t */ |
520 |
break; |
521 |
} |
522 |
ps++; |
523 |
} |
524 |
|
525 |
process_stat.total = ps_size; |
526 |
|
527 |
return &process_stat; |
528 |
} |