| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org |
| 4 |
* Copyright (C) 2000-2004 i-scream |
| 5 |
* |
| 6 |
* This library is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU Lesser General Public |
| 8 |
* License as published by the Free Software Foundation; either |
| 9 |
* version 2.1 of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This library is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 |
* Lesser General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU Lesser General Public |
| 17 |
* License along with this library; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 19 |
* 02111-1307 USA |
| 20 |
* |
| 21 |
* $Id: process_stats.c,v 1.22 2004/02/16 14:55:32 tdb Exp $ |
| 22 |
*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include "statgrab.h" |
| 29 |
#if defined(SOLARIS) || defined(LINUX) |
| 30 |
#include <stdio.h> |
| 31 |
#include <stdlib.h> |
| 32 |
#include <sys/types.h> |
| 33 |
#include <dirent.h> |
| 34 |
#include <string.h> |
| 35 |
#endif |
| 36 |
|
| 37 |
#ifdef SOLARIS |
| 38 |
#include <procfs.h> |
| 39 |
#include <limits.h> |
| 40 |
#define PROC_LOCATION "/proc" |
| 41 |
#define MAX_FILE_LENGTH PATH_MAX |
| 42 |
#endif |
| 43 |
#ifdef LINUX |
| 44 |
#include <limits.h> |
| 45 |
#define PROC_LOCATION "/proc" |
| 46 |
#define MAX_FILE_LENGTH PATH_MAX |
| 47 |
#endif |
| 48 |
#ifdef ALLBSD |
| 49 |
#include <stdlib.h> |
| 50 |
#include <sys/param.h> |
| 51 |
#include <sys/sysctl.h> |
| 52 |
#if defined(FREEBSD) || defined(DFBSD) |
| 53 |
#include <sys/user.h> |
| 54 |
#else |
| 55 |
#include <sys/proc.h> |
| 56 |
#endif |
| 57 |
#endif |
| 58 |
|
| 59 |
int get_proc_snapshot(proc_state_t **ps){ |
| 60 |
proc_state_t *proc_state = NULL; |
| 61 |
proc_state_t *proc_state_ptr; |
| 62 |
int proc_state_size = 0; |
| 63 |
#if defined(SOLARIS) |
| 64 |
DIR *proc_dir; |
| 65 |
struct dirent *dir_entry; |
| 66 |
char filename[MAX_FILE_LENGTH]; |
| 67 |
FILE *f; |
| 68 |
psinfo_t process_info; |
| 69 |
|
| 70 |
if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
| 71 |
return NULL; |
| 72 |
} |
| 73 |
|
| 74 |
while((dir_entry=readdir(proc_dir))!=NULL){ |
| 75 |
if(atoi(dir_entry->d_name) == 0) continue; |
| 76 |
|
| 77 |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
| 78 |
|
| 79 |
if((f=fopen(filename, "r"))==NULL){ |
| 80 |
/* Open failed.. Process since vanished, or the path was too long. |
| 81 |
* Ah well, move onwards to the next one */ |
| 82 |
continue; |
| 83 |
} |
| 84 |
fread(&process_info, sizeof(psinfo_t), 1, f); |
| 85 |
|
| 86 |
proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t)); |
| 87 |
|
| 88 |
proc_state_ptr = proc_state+proc_state_size; |
| 89 |
|
| 90 |
proc_state_ptr->pid = process_info.pr_pid; |
| 91 |
proc_state_ptr->parent = process_info.pr_ppid; |
| 92 |
proc_state_ptr->pgid = process_info.pr_pgid; |
| 93 |
proc_state_ptr->uid = process_info.pr_uid; |
| 94 |
proc_state_ptr->euid = process_info.pr_euid; |
| 95 |
proc_state_ptr->gid = process_info.pr_gid; |
| 96 |
proc_state_ptr->egid = process_info.pr_egid; |
| 97 |
proc_state_ptr->proc_size = (process_info.pr_size) * 1024; |
| 98 |
proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024; |
| 99 |
proc_state_ptr->time_spent = process_info.pr_time.tv_sec; |
| 100 |
proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000; |
| 101 |
proc_state_ptr->process_name = strdup(process_info.pr_fname); |
| 102 |
proc_state_ptr->proctitle = strdup(process_info.pr_psargs); |
| 103 |
|
| 104 |
proc_state_size++; |
| 105 |
#endif |
| 106 |
|
| 107 |
|
| 108 |
fclose(f); |
| 109 |
} |
| 110 |
closedir(proc_dir); |
| 111 |
*ps = proc_state; |
| 112 |
|
| 113 |
return proc_state_size; |
| 114 |
} |
| 115 |
|
