1 |
tdb |
1.17 |
/* |
2 |
pajs |
1.1 |
* i-scream central monitoring system |
3 |
tdb |
1.8 |
* http://www.i-scream.org |
4 |
tdb |
1.17 |
* Copyright (C) 2000-2004 i-scream |
5 |
pajs |
1.1 |
* |
6 |
tdb |
1.17 |
* This library is free software; you can redistribute it and/or |
7 |
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* modify it under the terms of the GNU Lesser General Public |
8 |
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* License as published by the Free Software Foundation; either |
9 |
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* version 2.1 of the License, or (at your option) any later version. |
10 |
pajs |
1.1 |
* |
11 |
tdb |
1.17 |
* This library is distributed in the hope that it will be useful, |
12 |
pajs |
1.1 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
tdb |
1.17 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
|
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* Lesser General Public License for more details. |
15 |
pajs |
1.1 |
* |
16 |
tdb |
1.17 |
* You should have received a copy of the GNU Lesser General Public |
17 |
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* License along with this library; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
19 |
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* 02111-1307 USA |
20 |
tdb |
1.18 |
* |
21 |
tdb |
1.28 |
* $Id: process_stats.c,v 1.27 2004/04/02 21:20:23 tdb Exp $ |
22 |
pajs |
1.1 |
*/ |
23 |
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24 |
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#ifdef HAVE_CONFIG_H |
25 |
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#include "config.h" |
26 |
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#endif |
27 |
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28 |
pajs |
1.6 |
#include "statgrab.h" |
29 |
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#if defined(SOLARIS) || defined(LINUX) |
30 |
pajs |
1.1 |
#include <stdio.h> |
31 |
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#include <stdlib.h> |
32 |
pajs |
1.5 |
#include <sys/types.h> |
33 |
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#include <dirent.h> |
34 |
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#include <string.h> |
35 |
pajs |
1.6 |
#endif |
36 |
pajs |
1.1 |
|
37 |
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#ifdef SOLARIS |
38 |
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#include <procfs.h> |
39 |
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#include <limits.h> |
40 |
pajs |
1.5 |
#define PROC_LOCATION "/proc" |
41 |
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#define MAX_FILE_LENGTH PATH_MAX |
42 |
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#endif |
43 |
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#ifdef LINUX |
44 |
ats |
1.16 |
#include <limits.h> |
45 |
pajs |
1.25 |
#include <unistd.h> |
46 |
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#include <sys/stat.h> |
47 |
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#include <fcntl.h> |
48 |
pajs |
1.1 |
#define PROC_LOCATION "/proc" |
49 |
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#define MAX_FILE_LENGTH PATH_MAX |
50 |
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#endif |
51 |
ats |
1.13 |
#ifdef ALLBSD |
52 |
tdb |
1.19 |
#include <stdlib.h> |
53 |
pajs |
1.6 |
#include <sys/param.h> |
54 |
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#include <sys/sysctl.h> |
55 |
tdb |
1.22 |
#if defined(FREEBSD) || defined(DFBSD) |
56 |
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#include <sys/user.h> |
57 |
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#else |
58 |
tdb |
1.19 |
#include <sys/proc.h> |
59 |
ats |
1.13 |
#endif |
60 |
pajs |
1.6 |
#endif |
61 |
pajs |
1.1 |
|
62 |
pajs |
1.23 |
int get_proc_snapshot(proc_state_t **ps){ |
63 |
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proc_state_t *proc_state = NULL; |
64 |
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proc_state_t *proc_state_ptr; |
65 |
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int proc_state_size = 0; |
66 |
tdb |
1.26 |
#ifdef ALLBSD |
67 |
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int mib[3]; |
68 |
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size_t size; |
69 |
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struct kinfo_proc *kp_stats; |
70 |
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int procs, i; |
71 |
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#endif |
72 |
pajs |
1.24 |
#if defined(SOLARIS) || defined(LINUX) |
73 |
pajs |
1.23 |
DIR *proc_dir; |
74 |
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struct dirent *dir_entry; |
75 |
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char filename[MAX_FILE_LENGTH]; |
76 |
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FILE *f; |
77 |
pajs |
1.24 |
#ifdef SOLARIS |
78 |
pajs |
1.5 |
psinfo_t process_info; |
79 |
pajs |
1.24 |
#endif |
80 |
pajs |
1.25 |
#ifdef LINUX |
81 |
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char s; |
82 |
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/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */ |
83 |
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char ps_name[4096]; |
84 |
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char *ptr; |
85 |
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static char *psargs = NULL; |
86 |
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static int psarg_size = 0; |
87 |
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unsigned long stime, utime; |
88 |
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int x; |
89 |
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int fn; |
90 |
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int toread; |
91 |
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ssize_t size; |
92 |
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int t_read; |
93 |
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#endif |
94 |
pajs |
1.1 |
|
95 |
pajs |
1.23 |
if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
96 |
pajs |
1.25 |
return -1; |
97 |
pajs |
1.23 |
} |
98 |
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99 |
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while((dir_entry=readdir(proc_dir))!=NULL){ |
100 |
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if(atoi(dir_entry->d_name) == 0) continue; |
101 |
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102 |
pajs |
1.24 |
#ifdef SOLARIS |
103 |
pajs |
1.23 |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
104 |
pajs |
1.24 |
#endif |
105 |
pajs |
1.25 |
#ifdef LINUX |
106 |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name); |
107 |
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#endif |
108 |
pajs |
1.23 |
if((f=fopen(filename, "r"))==NULL){ |
109 |
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/* Open failed.. Process since vanished, or the path was too long. |
110 |
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* Ah well, move onwards to the next one */ |
111 |
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continue; |
112 |
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} |
113 |
pajs |
1.24 |
#ifdef SOLARIS |
114 |
pajs |
1.23 |
fread(&process_info, sizeof(psinfo_t), 1, f); |
115 |
pajs |
1.25 |
#endif |
116 |
pajs |
1.1 |
|
117 |
pajs |
1.23 |
proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t)); |
118 |
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proc_state_ptr = proc_state+proc_state_size; |
119 |
pajs |
1.25 |
#ifdef SOLARIS |
120 |
pajs |
1.23 |
proc_state_ptr->pid = process_info.pr_pid; |
121 |
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proc_state_ptr->parent = process_info.pr_ppid; |
122 |
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proc_state_ptr->pgid = process_info.pr_pgid; |
123 |
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proc_state_ptr->uid = process_info.pr_uid; |
124 |
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proc_state_ptr->euid = process_info.pr_euid; |
125 |
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proc_state_ptr->gid = process_info.pr_gid; |
126 |
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proc_state_ptr->egid = process_info.pr_egid; |
127 |
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proc_state_ptr->proc_size = (process_info.pr_size) * 1024; |
128 |
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proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024; |
129 |
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proc_state_ptr->time_spent = process_info.pr_time.tv_sec; |
130 |
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proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000; |
131 |
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proc_state_ptr->process_name = strdup(process_info.pr_fname); |
132 |
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proc_state_ptr->proctitle = strdup(process_info.pr_psargs); |
133 |
pajs |
1.24 |
|
134 |
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if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING; |
135 |
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if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING; |
136 |
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if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE; |
137 |
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if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED; |
138 |
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if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING; |
139 |
pajs |
1.25 |
#endif |
140 |
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#ifdef LINUX |
141 |
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x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*lu %*lu %*lu %*lu %*lu %lu %lu %*ld %*ld %*ld %d %*ld %*ld %*lu %llu %llu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*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)); |
142 |
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proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize(); |
143 |
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if(s == 'S') proc_state_ptr->state = SLEEPING; |
144 |
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if(s == 'R') proc_state_ptr->state = RUNNING; |
145 |
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if(s == 'Z') proc_state_ptr->state = ZOMBIE; |
146 |
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if(s == 'T') proc_state_ptr->state = STOPPED; |
147 |
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if(s == 'D') proc_state_ptr->state = STOPPED; |
148 |
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149 |
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/* pa_name[0] should = '(' */ |
150 |
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ptr = strchr(&ps_name[1], ')'); |
151 |
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if(ptr !=NULL) *ptr='\0'; |
152 |
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proc_state_ptr->process_name = strdup(&ps_name[1]); |
153 |
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154 |
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/* Need to do cpu */ |
155 |
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156 |
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157 |
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/* proctitle */ |
158 |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name); |
159 |
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160 |
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if((fn=open(filename, O_RDONLY)) == -1){ |
161 |
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/* Open failed.. Process since vanished, or the path was too long. |
162 |
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* Ah well, move onwards to the next one */ |
163 |
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continue; |
164 |
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} |
165 |
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#define PSARG_START_SIZE 128 |
166 |
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if(psargs == NULL){ |
167 |
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psargs = malloc(PSARG_START_SIZE); |
168 |
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psarg_size = PSARG_START_SIZE; |
169 |
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} |
170 |
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ptr = psargs; |
171 |
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t_read = 0; |
172 |
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toread = psarg_size; |
173 |
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while((size = read(fn, ptr, toread)) == toread){ |
174 |
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psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE)); |
175 |
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ptr = psargs+psarg_size; |
176 |
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t_read = psarg_size; |
177 |
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psarg_size+=PSARG_START_SIZE; |
178 |
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toread = PSARG_START_SIZE; |
179 |
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} |
180 |
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if(size != -1) t_read+=size; |
181 |
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182 |
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ptr = psargs; |
183 |
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for(x=0; x<t_read; x++){ |
184 |
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if (*ptr == '\0') *ptr = ' '; |
185 |
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ptr++; |
186 |
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} |
187 |
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/* for safety sake */ |
188 |
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psargs[t_read] = '\0'; |
189 |
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190 |
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proc_state_ptr->proctitle = strdup(psargs); |
191 |
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192 |
pajs |
1.24 |
#endif |
193 |
pajs |
1.23 |
|
194 |
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proc_state_size++; |
195 |
pajs |
1.1 |
|
196 |
pajs |
1.23 |
fclose(f); |
197 |
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} |
198 |
|
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closedir(proc_dir); |
199 |
tdb |
1.26 |
#endif |
200 |
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201 |
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#ifdef ALLBSD |
202 |
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mib[0] = CTL_KERN; |
203 |
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mib[1] = KERN_PROC; |
204 |
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mib[2] = KERN_PROC_ALL; |
205 |
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206 |
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if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
207 |
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return NULL; |
208 |
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} |
209 |
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210 |
|
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procs = size / sizeof(struct kinfo_proc); |
211 |
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212 |
|
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kp_stats = malloc(size); |
213 |
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if (kp_stats == NULL) { |
214 |
|
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return NULL; |
215 |
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} |
216 |
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|
217 |
|
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if (sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
218 |
|
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free(kp_stats); |
219 |
|
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return NULL; |
220 |
|
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} |
221 |
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|
222 |
|
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for (i = 0; i < procs; i++) { |
223 |
|
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proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t)); |
224 |
|
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proc_state_ptr = proc_state+proc_state_size; |
225 |
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|
226 |
|
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proc_state_ptr->process_name = strdup(kp_stats[i].ki_comm); |
227 |
|
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/* Seems we don't have access to that bit of memory */ |
228 |
|
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/*proc_state_ptr->proctitle = strdup(kp_stats[i].ki_args->ar_args);*/ |
229 |
tdb |
1.28 |
proc_state_ptr->proctitle = NULL; |
230 |
tdb |
1.26 |
|
231 |
|
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proc_state_ptr->pid = kp_stats[i].ki_pid; |
232 |
|
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proc_state_ptr->parent = kp_stats[i].ki_ppid; |
233 |
|
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proc_state_ptr->pgid = kp_stats[i].ki_pgid; |
234 |
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235 |
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proc_state_ptr->uid = kp_stats[i].ki_ruid; |
236 |
|
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proc_state_ptr->euid = kp_stats[i].ki_uid; |
237 |
|
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proc_state_ptr->gid = kp_stats[i].ki_rgid; |
238 |
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proc_state_ptr->egid = kp_stats[i].ki_svgid; |
239 |
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|
240 |
|
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proc_state_ptr->proc_size = kp_stats[i].ki_size; |
241 |
|
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/* This is in pages */ |
242 |
|
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proc_state_ptr->proc_resident = kp_stats[i].ki_rssize * getpagesize(); |
243 |
tdb |
1.28 |
/* This is in microseconds */ |
244 |
tdb |
1.26 |
proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000; |
245 |
tdb |
1.28 |
proc_state_ptr->cpu_percent = ((double) kp_stats[i].ki_pctcpu / FSCALE) * 100.0; |
246 |
tdb |
1.26 |
proc_state_ptr->nice = kp_stats[i].ki_nice; |
247 |
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|
248 |
|
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switch (kp_stats[i].ki_stat) { |
249 |
|
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case SIDL: |
250 |
|
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case SRUN: |
251 |
|
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#ifdef SONPROC |
252 |
|
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case SONPROC: /* NetBSD */ |
253 |
|
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#endif |
254 |
|
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proc_state_ptr->state = RUNNING; |
255 |
|
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break; |
256 |
|
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case SSLEEP: |
257 |
|
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#ifdef SWAIT |
258 |
|
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case SWAIT: /* FreeBSD 5 */ |
259 |
|
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#endif |
260 |
|
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#ifdef SLOCK |
261 |
|
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case SLOCK: /* FreeBSD 5 */ |
262 |
|
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#endif |
263 |
|
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proc_state_ptr->state = SLEEPING; |
264 |
|
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break; |
265 |
|
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case SSTOP: |
266 |
|
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proc_state_ptr->state = STOPPED; |
267 |
|
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break; |
268 |
|
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case SZOMB: |
269 |
|
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#ifdef SDEAD |
270 |
|
|
case SDEAD: /* OpenBSD & NetBSD */ |
271 |
|
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#endif |
272 |
|
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proc_state_ptr->state = ZOMBIE; |
273 |
|
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break; |
274 |
|
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} |
275 |
|
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proc_state_size++; |
276 |
|
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} |
277 |
|
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|
278 |
|
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free(kp_stats); |
279 |
|
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#endif |
280 |
|
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|
281 |
pajs |
1.23 |
*ps = proc_state; |
282 |
|
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return proc_state_size; |
283 |
tdb |
1.27 |
} |
284 |
|
|
|
285 |
|
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process_stat_t *get_process_stats() { |
286 |
|
|
static process_stat_t process_stat; |
287 |
|
|
proc_state_t *ps; |
288 |
|
|
int ps_size, x; |
289 |
|
|
|
290 |
|
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process_stat.sleeping=0; |
291 |
|
|
process_stat.running=0; |
292 |
|
|
process_stat.zombie=0; |
293 |
|
|
process_stat.stopped=0; |
294 |
|
|
process_stat.total=0; |
295 |
|
|
|
296 |
|
|
ps_size = get_proc_snapshot(&ps); |
297 |
|
|
|
298 |
|
|
for(x = 0; x < ps_size; x++) { |
299 |
|
|
switch (ps->state) { |
300 |
|
|
case RUNNING: |
301 |
|
|
process_stat.running++; |
302 |
|
|
break; |
303 |
|
|
case SLEEPING: |
304 |
|
|
process_stat.sleeping++; |
305 |
|
|
break; |
306 |
|
|
case STOPPED: |
307 |
|
|
process_stat.stopped++; |
308 |
|
|
break; |
309 |
|
|
case ZOMBIE: |
310 |
|
|
process_stat.zombie++; |
311 |
|
|
break; |
312 |
|
|
} |
313 |
|
|
ps++; |
314 |
|
|
} |
315 |
|
|
|
316 |
|
|
process_stat.total = ps_size; |
317 |
|
|
|
318 |
|
|
return &process_stat; |
319 |
pajs |
1.23 |
} |