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root/i-scream/projects/libstatgrab/src/libstatgrab/process_stats.c

Comparing projects/libstatgrab/src/libstatgrab/process_stats.c (file contents):
Revision 1.3 by pajs, Sat Mar 1 02:12:59 2003 UTC vs.
Revision 1.33 by tdb, Sun Apr 4 11:28:46 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2004 i-scream
5		*
6	<	* This program is free software; you can redistribute it and/or
7	<	* modify it under the terms of the GNU General Public License
8	<	* as published by the Free Software Foundation; either version 2
9	<	* of the License, or (at your option) any later version.
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 program is distributed in the hope that it will be useful,
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
14	<	* GNU General Public License for more details.
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 General Public License
17	<	* along with this program; if not, write to the Free Software
18	<	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
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 <unistd.h>
33	<	#include "statgrab.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>
33	–	#include <dirent.h>
34	–	#include <string.h>
40		#define PROC_LOCATION "/proc"
41		#define MAX_FILE_LENGTH PATH_MAX
42		#endif
43	+	#ifdef LINUX
44	+	#include <limits.h>
45	+	#include <unistd.h>
46	+	#include <sys/stat.h>
47	+	#include <fcntl.h>
48	+	#define PROC_LOCATION "/proc"
49	+	#define MAX_FILE_LENGTH PATH_MAX
50	+	#endif
51	+	#ifdef ALLBSD
52	+	#include <stdlib.h>
53	+	#include <sys/param.h>
54	+	#include <sys/sysctl.h>
55	+	#if defined(FREEBSD) || defined(DFBSD)
56	+	#include <sys/user.h>
57	+	#else
58	+	#include <sys/proc.h>
59	+	#endif
60	+	#include <string.h>
61	+	#include <paths.h>
62	+	#include <fcntl.h>
63	+	#include <limits.h>
64	+	#include <kvm.h>
65	+	#endif
66
67	<	process_stat_t *get_process_stats(){
67	>	int get_proc_snapshot(proc_state_t **ps){
68	>	proc_state_t *proc_state = NULL;
69	>	proc_state_t *proc_state_ptr;
70	>	int proc_state_size = 0;
71	>	#ifdef ALLBSD
72	>	int mib[3];
73	>	size_t size;
74	>	struct kinfo_proc *kp_stats;
75	>	int procs, i, alloc;
76	>	static kvm_t *kvmd;
77	>	char **args;
78	>	char *proctitle;
79	>	#endif
80	>	#if defined(SOLARIS) || defined(LINUX)
81	>	DIR *proc_dir;
82	>	struct dirent *dir_entry;
83	>	char filename[MAX_FILE_LENGTH];
84	>	FILE *f;
85	>	#ifdef SOLARIS
86	>	psinfo_t process_info;
87	>	#endif
88	>	#ifdef LINUX
89	>	char s;
90	>	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
91	>	char ps_name[4096];
92	>	char *ptr;
93	>	static char *psargs = NULL;
94	>	static int psarg_size = 0;
95	>	unsigned long stime, utime;
96	>	int x;
97	>	int fn;
98	>	int toread;
99	>	ssize_t size;
100	>	int t_read;
101	>	#endif
102
103	<	static process_stat_t process_stat;
103	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
104	>	return -1;
105	>	}
106
107	<	psinfo_t process_info;
108	<	DIR *proc_dir;
45	<	struct dirent *dir_entry;
46	<	char filename[MAX_FILE_LENGTH];
47	<	FILE *f;
107	>	while((dir_entry=readdir(proc_dir))!=NULL){
108	>	if(atoi(dir_entry->d_name) == 0) continue;
109
110	<	process_stat.sleeping=0;
111	<	process_stat.running=0;
112	<	process_stat.zombie=0;
113	<	process_stat.stopped=0;
114	<	process_stat.running=0;
110	>	#ifdef SOLARIS
111	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
112	>	#endif
113	>	#ifdef LINUX
114	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
115	>	#endif
116	>	if((f=fopen(filename, "r"))==NULL){
117	>	/* Open failed.. Process since vanished, or the path was too long.
118	>	* Ah well, move onwards to the next one */
119	>	continue;
120	>	}
121	>	#ifdef SOLARIS
122	>	fread(&process_info, sizeof(psinfo_t), 1, f);
123	>	#endif
124
125	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
125	>	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
126	>	proc_state_ptr = proc_state+proc_state_size;
127	>	#ifdef SOLARIS
128	>	proc_state_ptr->pid = process_info.pr_pid;
129	>	proc_state_ptr->parent = process_info.pr_ppid;
130	>	proc_state_ptr->pgid = process_info.pr_pgid;
131	>	proc_state_ptr->uid = process_info.pr_uid;
132	>	proc_state_ptr->euid = process_info.pr_euid;
133	>	proc_state_ptr->gid = process_info.pr_gid;
134	>	proc_state_ptr->egid = process_info.pr_egid;
135	>	proc_state_ptr->proc_size = (process_info.pr_size) * 1024;
136	>	proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024;
137	>	proc_state_ptr->time_spent = process_info.pr_time.tv_sec;
138	>	proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000;
139	>	proc_state_ptr->process_name = strdup(process_info.pr_fname);
140	>	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
141	>
142	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
143	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
144	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
145	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
146	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING;
147	>	#endif
148	>	#ifdef LINUX
149	>	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));
150	>	proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
151	>	if(s == 'S') proc_state_ptr->state = SLEEPING;
152	>	if(s == 'R') proc_state_ptr->state = RUNNING;
153	>	if(s == 'Z') proc_state_ptr->state = ZOMBIE;
154	>	if(s == 'T') proc_state_ptr->state = STOPPED;
155	>	if(s == 'D') proc_state_ptr->state = STOPPED;
156	>
157	>	/* pa_name[0] should = '(' */
158	>	ptr = strchr(&ps_name[1], ')');
159	>	if(ptr !=NULL) *ptr='\0';
160	>	proc_state_ptr->process_name = strdup(&ps_name[1]);
161	>
162	>	/* Need to do cpu */
163	>
164	>
165	>	/* proctitle */
166	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
167	>
168	>	if((fn=open(filename, O_RDONLY)) == -1){
169	>	/* Open failed.. Process since vanished, or the path was too long.
170	>	* Ah well, move onwards to the next one */
171	>	continue;
172	>	}
173	>	#define         PSARG_START_SIZE 128
174	>	if(psargs == NULL){
175	>	psargs = malloc(PSARG_START_SIZE);
176	>	psarg_size = PSARG_START_SIZE;
177	>	}
178	>	ptr = psargs;
179	>	t_read = 0;
180	>	toread = psarg_size;
181	>	while((size = read(fn, ptr, toread)) == toread){
182	>	psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE));
183	>	ptr = psargs+psarg_size;
184	>	t_read = psarg_size;
185	>	psarg_size+=PSARG_START_SIZE;
186	>	toread = PSARG_START_SIZE;
187	>	}
188	>	if(size != -1) t_read+=size;
189	>
190	>	ptr = psargs;
191	>	for(x=0; x<t_read; x++){
192	>	if (*ptr == '\0') *ptr = ' ';
193	>	ptr++;
194	>	}
195	>	/*  for safety sake */
196	>	psargs[t_read] = '\0';
197	>
198	>	proc_state_ptr->proctitle = strdup(psargs);
199	>
200	>	#endif
201	>
202	>	proc_state_size++;
203	>
204	>	fclose(f);
205	>	}
206	>	closedir(proc_dir);
207	>	#endif
208	>
209	>	#ifdef ALLBSD
210	>
211	>	#ifdef NETBSD
212	>	kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
213	>	#else
214	>	kvmd = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL);
215	>	#endif
216	>
217	>	if(kvmd == NULL) return NULL;
218	>
219	>	kp_stats = kvm_getprocs(kvmd, KERN_PROC_ALL, 0, &procs);
220	>
221	>	if (kp_stats == NULL || procs < 0) {
222		return NULL;
223		}
224
225	<	while((dir_entry=readdir(proc_dir))!=NULL){
226	<	if(atoi(dir_entry->d_name) == 0) continue;
227	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
225	>	for (i = 0; i < procs; i++) {
226	>	/* replace with something more sensible */
227	>	proc_state = realloc(proc_state,
228	>	(1+proc_state_size)*sizeof(proc_state_t));
229	>	if(proc_state == NULL ) {
230	>	return NULL;
231	>	}
232	>	proc_state_ptr = proc_state+proc_state_size;
233
234	<	if((f=fopen(filename, "r"))==NULL){
235	<	/* Open failed.. Process since vanished, or the path was too long.
236	<	* Ah well, move onwards to the next one */
237	<	continue;
234	>	#ifdef FREEBSD5
235	>	proc_state_ptr->process_name =
236	>	strdup(kp_stats[i].ki_comm);
237	>	#else
238	>	proc_state_ptr->process_name =
239	>	strdup(kp_stats[i].kp_proc.p_comm);
240	>	#endif
241	>
242	>	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
243	>	if(args != NULL) {
244	>	alloc = 1;
245	>	proctitle = malloc(alloc);
246	>	if(proctitle == NULL) {
247	>	return NULL;
248	>	}
249	>	while(*args != NULL) {
250	>	if(strlen(proctitle) + strlen(*args) >= alloc) {
251	>	alloc = (alloc + strlen(*args)) << 1;
252	>	proctitle = realloc(proctitle, alloc);
253	>	if(proctitle == NULL) {
254	>	return NULL;
255	>	}
256	>	}
257	>	strncat(proctitle, *args, strlen(*args));
258	>	strncat(proctitle, " ", 1);
259	>	args++;
260	>	}
261	>	/* remove trailing space */
262	>	proctitle[strlen(proctitle)-1] = NULL;
263	>	proc_state_ptr->proctitle = proctitle;
264		}
265	+	else {
266	+	proc_state_ptr->proctitle =
267	+	malloc(strlen(proc_state_ptr->process_name)+4);
268	+	if(proc_state_ptr->proctitle == NULL) {
269	+	return NULL;
270	+	}
271	+	sprintf(proc_state_ptr->proctitle, " (%s)",
272	+	proc_state_ptr->process_name);
273	+	}
274
275	<	fread(&process_info, sizeof(psinfo_t), 1, f);
276	<	fclose(f);
275	>	#ifdef FREEBSD5
276	>	proc_state_ptr->pid = kp_stats[i].ki_pid;
277	>	proc_state_ptr->parent = kp_stats[i].ki_ppid;
278	>	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
279	>	#else
280	>	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
281	>	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
282	>	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
283	>	#endif
284
285	<	if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
286	<	if(process_info.pr_lwp.pr_state==2) process_stat.running++;
287	<	if(process_info.pr_lwp.pr_state==3) process_stat.zombie++;
288	<	if(process_info.pr_lwp.pr_state==4) process_stat.stopped++;
289	<	if(process_info.pr_lwp.pr_state==6) process_stat.running++;
285	>	#ifdef FREEBSD5
286	>	proc_state_ptr->uid = kp_stats[i].ki_ruid;
287	>	proc_state_ptr->euid = kp_stats[i].ki_uid;
288	>	proc_state_ptr->gid = kp_stats[i].ki_rgid;
289	>	proc_state_ptr->egid = kp_stats[i].ki_svgid;
290	>	#else
291	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
292	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
293	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
294	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
295	>	#endif
296	>
297	>	#ifdef FREEBSD5
298	>	proc_state_ptr->proc_size = kp_stats[i].ki_size;
299	>	/* This is in pages */
300	>	proc_state_ptr->proc_resident =
301	>	kp_stats[i].ki_rssize * getpagesize();
302	>	/* This is in microseconds */
303	>	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
304	>	proc_state_ptr->cpu_percent =
305	>	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
306	>	proc_state_ptr->nice = kp_stats[i].ki_nice;
307	>	#else
308	>	proc_state_ptr->proc_size =
309	>	kp_stats[i].kp_eproc.e_vm.vm_map.size;
310	>	/* This is in pages */
311	>	proc_state_ptr->proc_resident =
312	>	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
313	>	/* This is in microseconds */
314	>	#ifdef NETBSD
315	>	proc_state_ptr->time_spent =
316	>	kp_stats[i].kp_proc.p_rtime.tv_sec;
317	>	#else
318	>	proc_state_ptr->time_spent =
319	>	kp_stats[i].kp_proc.p_runtime / 1000000;
320	>	#endif
321	>	proc_state_ptr->cpu_percent =
322	>	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
323	>	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
324	>	#endif
325	>
326	>	#ifdef FREEBSD5
327	>	switch (kp_stats[i].ki_stat) {
328	>	#else
329	>	switch (kp_stats[i].kp_proc.p_stat) {
330	>	#endif
331	>	case SIDL:
332	>	case SRUN:
333	>	#ifdef SONPROC
334	>	case SONPROC: /* NetBSD */
335	>	#endif
336	>	proc_state_ptr->state = RUNNING;
337	>	break;
338	>	case SSLEEP:
339	>	#ifdef SWAIT
340	>	case SWAIT: /* FreeBSD 5 */
341	>	#endif
342	>	#ifdef SLOCK
343	>	case SLOCK: /* FreeBSD 5 */
344	>	#endif
345	>	proc_state_ptr->state = SLEEPING;
346	>	break;
347	>	case SSTOP:
348	>	proc_state_ptr->state = STOPPED;
349	>	break;
350	>	case SZOMB:
351	>	#ifdef SDEAD
352	>	case SDEAD: /* OpenBSD & NetBSD */
353	>	#endif
354	>	proc_state_ptr->state = ZOMBIE;
355	>	break;
356	>	default:
357	>	proc_state_ptr->state = UNKNOWN;
358	>	break;
359	>	}
360	>	proc_state_size++;
361		}
362	<
363	<	closedir(proc_dir);
362	>
363	>	free(kp_stats);
364	>	#endif
365	>
366	>	*ps = proc_state;
367	>	return proc_state_size;
368	>	}
369	>
370	>	process_stat_t *get_process_stats() {
371	>	static process_stat_t process_stat;
372	>	proc_state_t *ps;
373	>	int ps_size, x;
374	>
375	>	process_stat.sleeping = 0;
376	>	process_stat.running = 0;
377	>	process_stat.zombie = 0;
378	>	process_stat.stopped = 0;
379	>	process_stat.total = 0;
380	>
381	>	ps_size = get_proc_snapshot(&ps);
382	>
383	>	if(ps_size == NULL) {
384	>	return NULL;
385	>	}
386	>
387	>	for(x = 0; x < ps_size; x++) {
388	>	switch (ps->state) {
389	>	/* currently no mapping for UNKNOWN in process_stat_t */
390	>	case RUNNING:
391	>	process_stat.running++;
392	>	break;
393	>	case SLEEPING:
394	>	process_stat.sleeping++;
395	>	break;
396	>	case STOPPED:
397	>	process_stat.stopped++;
398	>	break;
399	>	case ZOMBIE:
400	>	process_stat.zombie++;
401	>	break;
402	>	}
403	>	ps++;
404	>	}
405	>
406	>	process_stat.total = ps_size;
407
408		return &process_stat;
409		}

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