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root/i-scream/projects/libstatgrab/src/libstatgrab/process_stats.c
Revision: 1.18
Committed: Mon Jan 19 16:49:21 2004 UTC (20 years, 3 months ago) by tdb
Content type: text/plain
Branch: MAIN
CVS Tags: LIBSTATGRAB_0_8_2, LIBSTATGRAB_0_8_1
Changes since 1.17: +2 -0 lines
Log Message:
A whole bunch of minor cosmetic changes.

File Contents

# Content
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 * $Id$
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 #include "tools.h"
38 #ifdef SOLARIS
39 #include <procfs.h>
40 #include <limits.h>
41 #define PROC_LOCATION "/proc"
42 #define MAX_FILE_LENGTH PATH_MAX
43 #endif
44 #ifdef LINUX
45 #include <limits.h>
46 #define PROC_LOCATION "/proc"
47 #define MAX_FILE_LENGTH PATH_MAX
48 #endif
49 #ifdef ALLBSD
50 #include <kvm.h>
51 #include <sys/param.h>
52 #include <sys/sysctl.h>
53 #endif
54 #ifdef FREEBSD
55 #include <sys/user.h>
56 #endif
57
58 process_stat_t *get_process_stats(){
59
60 static process_stat_t process_stat;
61
62 #if defined(SOLARIS) || defined(LINUX)
63 DIR *proc_dir;
64 struct dirent *dir_entry;
65 char filename[MAX_FILE_LENGTH];
66 FILE *f;
67 #endif
68 #ifdef LINUX
69 char *line_ptr;
70 #endif
71 #ifdef SOLARIS
72 psinfo_t process_info;
73 #endif
74 #ifdef ALLBSD
75 struct kinfo_proc *kp_stats;
76 kvm_t *kvmd;
77 int procs;
78 #endif
79
80 process_stat.sleeping=0;
81 process_stat.running=0;
82 process_stat.zombie=0;
83 process_stat.stopped=0;
84 process_stat.total=0;
85
86 #if defined(SOLARIS) || defined(LINUX)
87 if((proc_dir=opendir(PROC_LOCATION))==NULL){
88 return NULL;
89 }
90
91 while((dir_entry=readdir(proc_dir))!=NULL){
92 if(atoi(dir_entry->d_name) == 0) continue;
93
94 #ifdef SOLARIS
95 snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
96 #endif
97 #ifdef LINUX
98 snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
99 #endif
100
101 if((f=fopen(filename, "r"))==NULL){
102 /* Open failed.. Process since vanished, or the path was too long.
103 * Ah well, move onwards to the next one */
104 continue;
105 }
106
107 #ifdef SOLARIS
108 fread(&process_info, sizeof(psinfo_t), 1, f);
109 if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
110 if(process_info.pr_lwp.pr_state==2) process_stat.running++;
111 if(process_info.pr_lwp.pr_state==3) process_stat.zombie++;
112 if(process_info.pr_lwp.pr_state==4) process_stat.stopped++;
113 if(process_info.pr_lwp.pr_state==6) process_stat.running++;
114 #endif
115 #ifdef LINUX
116 if((line_ptr=f_read_line(f, "State:"))==NULL){
117 fclose(f);
118 continue;
119 }
120 if((line_ptr=strchr(line_ptr, '\t'))==NULL){
121 fclose(f);
122 continue;
123 }
124 line_ptr++;
125 if(line_ptr=='\0'){
126 fclose(f);
127 continue;
128 }
129
130 if(*line_ptr=='S') process_stat.sleeping++;
131 if(*line_ptr=='R') process_stat.running++;
132 if(*line_ptr=='Z') process_stat.zombie++;
133 if(*line_ptr=='T') process_stat.stopped++;
134 if(*line_ptr=='D') process_stat.stopped++;
135 #endif
136
137 fclose(f);
138 }
139 closedir(proc_dir);
140 #endif
141 #ifdef ALLBSD
142 if((kvmd = get_kvm()) == NULL){
143 return NULL;
144 }
145
146 kp_stats=kvm_getprocs(kvmd, KERN_PROC_ALL, 0, &procs);
147
148 while(procs--){
149 #ifdef FREEBSD5
150 if (kp_stats[procs].ki_stat == SSLEEP) process_stat.sleeping++;
151 if (kp_stats[procs].ki_stat == SWAIT) process_stat.sleeping++;
152 if (kp_stats[procs].ki_stat == SLOCK) process_stat.sleeping++;
153 if (kp_stats[procs].ki_stat == SRUN) process_stat.running++;
154 if (kp_stats[procs].ki_stat == SIDL) process_stat.running++;
155 if (kp_stats[procs].ki_stat == SZOMB) process_stat.zombie++;
156 if (kp_stats[procs].ki_stat == SSTOP) process_stat.stopped++;
157
158 #else
159 if (kp_stats[procs].kp_proc.p_stat == SSLEEP) process_stat.sleeping++;
160 if (kp_stats[procs].kp_proc.p_stat == SRUN) process_stat.running++;
161 if (kp_stats[procs].kp_proc.p_stat == SIDL) process_stat.running++;
162 if (kp_stats[procs].kp_proc.p_stat == SZOMB) process_stat.zombie++;
163 if (kp_stats[procs].kp_proc.p_stat == SSTOP) process_stat.stopped++;
164 #endif
165 }
166 #endif
167
168 #ifdef CYGWIN
169 return NULL;
170 #endif
171
172 process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped;
173
174 return &process_stat;
175 }