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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 1.23 by pajs, Sun Mar 28 18:04:14 2004 UTC vs.
Revision 1.54 by ats, Mon Apr 5 19:55:27 2004 UTC

#	Line 26 | Line 26
26		#endif
27
28		#include "statgrab.h"
29	+	#include "tools.h"
30	+	#include "vector.h"
31		#if defined(SOLARIS) || defined(LINUX)
32		#include <stdio.h>
33		#include <stdlib.h>
#	Line 42 | Line 44
44		#endif
45		#ifdef LINUX
46		#include <limits.h>
47	+	#include <unistd.h>
48	+	#include <sys/stat.h>
49	+	#include <fcntl.h>
50		#define PROC_LOCATION "/proc"
51		#define MAX_FILE_LENGTH PATH_MAX
52		#endif
#	Line 54 | Line 59
59		#else
60		#include <sys/proc.h>
61		#endif
62	+	#include <string.h>
63	+	#include <paths.h>
64	+	#include <fcntl.h>
65	+	#include <limits.h>
66	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
67	+	#include <kvm.h>
68	+	#include <tools.h>
69		#endif
70	+	#include <unistd.h>
71	+	#endif
72
73	<	int get_proc_snapshot(proc_state_t **ps){
74	<	proc_state_t *proc_state = NULL;
75	<	proc_state_t *proc_state_ptr;
73	>	static void proc_state_init(sg_process_stats *s) {
74	>	s->process_name = NULL;
75	>	s->proctitle = NULL;
76	>	}
77	>
78	>	static void proc_state_destroy(sg_process_stats *s) {
79	>	free(s->process_name);
80	>	free(s->proctitle);
81	>	}
82	>
83	>	sg_process_stats *sg_get_process_stats(int *entries){
84	>	VECTOR_DECLARE_STATIC(proc_state, sg_process_stats, 64,
85	>	proc_state_init, proc_state_destroy);
86		int proc_state_size = 0;
87	<	#if defined(SOLARIS)
87	>	sg_process_stats *proc_state_ptr;
88	>	#ifdef ALLBSD
89	>	int mib[4];
90	>	size_t size;
91	>	struct kinfo_proc *kp_stats;
92	>	int procs, i;
93	>	char *proctitle;
94	>	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
95	>	kvm_t *kvmd;
96	>	char **args, **argsp;
97	>	int argslen = 0;
98	>	#else
99	>	long buflen;
100	>	char *p;
101	>	#endif
102	>	#endif
103	>	#if defined(SOLARIS) || defined(LINUX)
104		DIR *proc_dir;
105		struct dirent *dir_entry;
106		char filename[MAX_FILE_LENGTH];
107		FILE *f;
108	+	#ifdef SOLARIS
109		psinfo_t process_info;
110	+	#endif
111	+	#ifdef LINUX
112	+	char s;
113	+	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
114	+	char ps_name[4096];
115	+	char *ptr;
116	+	VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
117	+	unsigned long stime, utime;
118	+	int x;
119	+	int fn;
120	+	int len;
121	+	int rc;
122	+	#endif
123
124		if((proc_dir=opendir(PROC_LOCATION))==NULL){
125		return NULL;
#	Line 74 | Line 128 | int get_proc_snapshot(proc_state_t **ps){
128		while((dir_entry=readdir(proc_dir))!=NULL){
129		if(atoi(dir_entry->d_name) == 0) continue;
130
131	+	#ifdef SOLARIS
132		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
133	<
133	>	#endif
134	>	#ifdef LINUX
135	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
136	>	#endif
137		if((f=fopen(filename, "r"))==NULL){
138		/* Open failed.. Process since vanished, or the path was too long.
139		* Ah well, move onwards to the next one */
140		continue;
141		}
142	+	#ifdef SOLARIS
143		fread(&process_info, sizeof(psinfo_t), 1, f);
144	+	#endif
145
146	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
147	<
146	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
147	>	return NULL;
148	>	}
149		proc_state_ptr = proc_state+proc_state_size;
150	<
150	>
151	>	#ifdef SOLARIS
152		proc_state_ptr->pid = process_info.pr_pid;
153		proc_state_ptr->parent = process_info.pr_ppid;
154		proc_state_ptr->pgid = process_info.pr_pgid;
#	Line 101 | Line 163 | int get_proc_snapshot(proc_state_t **ps){
163		proc_state_ptr->process_name = strdup(process_info.pr_fname);
164		proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
165
166	<	proc_state_size++;
166	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
167	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
168	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
169	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
170	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
171		#endif
172	+	#ifdef LINUX
173	+	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));
174	+	proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
175	+	if(s == 'S') proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
176	+	if(s == 'R') proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
177	+	if(s == 'Z') proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
178	+	if(s == 'T') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
179	+	if(s == 'D') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
180	+
181	+	/* pa_name[0] should = '(' */
182	+	ptr = strchr(&ps_name[1], ')');
183	+	if(ptr !=NULL) *ptr='\0';
184
185	+	if (sg_update_string(&proc_state_ptr->process_name,
186	+	&ps_name[1]) < 0) {
187	+	return NULL;
188	+	}
189
190	+	/* Need to do cpu */
191	+
192	+
193		fclose(f);
194	+
195	+	/* proctitle */
196	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
197	+
198	+	if((fn=open(filename, O_RDONLY)) == -1){
199	+	/* Open failed.. Process since vanished, or the path was too long.
200	+	* Ah well, move onwards to the next one */
201	+	continue;
202	+	}
203	+
204	+	#define READ_BLOCK_SIZE 128
205	+	len = 0;
206	+	do {
207	+	if (VECTOR_RESIZE(psargs, len + READ_BLOCK_SIZE) < 0) {
208	+	return NULL;
209	+	}
210	+	rc = read(fn, psargs + len, READ_BLOCK_SIZE);
211	+	if (rc > 0) {
212	+	len += rc;
213	+	}
214	+	} while (rc == READ_BLOCK_SIZE);
215	+	close(fn);
216	+
217	+	if (rc == -1) {
218	+	/* Read failed; move on. */
219	+	continue;
220	+	}
221	+
222	+	/* Turn \0s into spaces within the command line. */
223	+	ptr = psargs;
224	+	for(x = 0; x < len; x++) {
225	+	if (*ptr == '\0') *ptr = ' ';
226	+	ptr++;
227	+	}
228	+
229	+	if (len == 0) {
230	+	/* We want psargs to be NULL. */
231	+	if (VECTOR_RESIZE(psargs, 0) < 0) {
232	+	return NULL;
233	+	}
234	+	} else {
235	+	/* Not empty, so append a \0. */
236	+	if (VECTOR_RESIZE(psargs, len + 1) < 0) {
237	+	return NULL;
238	+	}
239	+	psargs[len] = '\0';
240	+	}
241	+
242	+	if (sg_update_string(&proc_state_ptr->proctitle, psargs) < 0) {
243	+	return NULL;
244	+	}
245	+	#endif
246	+
247	+	proc_state_size++;
248		}
249		closedir(proc_dir);
250	<	*ps = proc_state;
250	>	#endif
251
252	<	return proc_state_size;
252	>	#ifdef ALLBSD
253	>	mib[0] = CTL_KERN;
254	>	mib[1] = KERN_PROC;
255	>	mib[2] = KERN_PROC_ALL;
256	>
257	>	if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
258	>	return NULL;
259	>	}
260	>
261	>	procs = size / sizeof(struct kinfo_proc);
262	>
263	>	kp_stats = malloc(size);
264	>	if(kp_stats == NULL) {
265	>	return NULL;
266	>	}
267	>	memset(kp_stats, 0, size);
268	>
269	>	if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
270	>	free(kp_stats);
271	>	return NULL;
272	>	}
273	>
274	>	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
275	>	kvmd = sg_get_kvm2();
276	>	#endif
277	>
278	>	for (i = 0; i < procs; i++) {
279	>	const char *name;
280	>
281	>	if (kp_stats[i].ki_stat == 0) {
282	>	/* FreeBSD 5 deliberately overallocates the array that
283	>	* the sysctl returns, so we'll get a few junk
284	>	* processes on the end that we have to ignore. (Search
285	>	* for "overestimate by 5 procs" in
286	>	* src/sys/kern/kern_proc.c for more details.) */
287	>	continue;
288	>	}
289	>
290	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
291	>	return NULL;
292	>	}
293	>	proc_state_ptr = proc_state+proc_state_size;
294	>
295	>	#ifdef FREEBSD5
296	>	name = kp_stats[i].ki_comm;
297	>	#elif defined(DFBSD)
298	>	name = kp_stats[i].kp_thread.td_comm;
299	>	#else
300	>	name = kp_stats[i].kp_proc.p_comm;
301	>	#endif
302	>	if (sg_update_string(&proc_state_ptr->process_name, name) < 0) {
303	>	return NULL;
304	>	}
305	>
306	>	#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
307	>	size = sizeof(buflen);
308	>
309	>	#ifdef FREEBSD5
310	>	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
311	>	return NULL;
312	>	}
313	>	#else
314	>	mib[1] = KERN_ARGMAX;
315	>
316	>	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
317	>	return NULL;
318	>	}
319	>	#endif
320	>
321	>	proctitle = malloc(buflen);
322	>	if(proctitle == NULL) {
323	>	return NULL;
324	>	}
325	>
326	>	size = buflen;
327	>
328	>	#ifdef FREEBSD5
329	>	mib[2] = KERN_PROC_ARGS;
330	>	mib[3] = kp_stats[i].ki_pid;
331	>	#else
332	>	mib[1] = KERN_PROC_ARGS;
333	>	mib[2] = kp_stats[i].kp_proc.p_pid;
334	>	mib[3] = KERN_PROC_ARGV;
335	>	#endif
336	>
337	>	free(proc_state_ptr->proctitle);
338	>	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
339	>	free(proctitle);
340	>	proc_state_ptr->proctitle = NULL;
341	>	}
342	>	else if(size > 0) {
343	>	proc_state_ptr->proctitle = malloc(size+1);
344	>	if(proc_state_ptr->proctitle == NULL) {
345	>	return NULL;
346	>	}
347	>	p = proctitle;
348	>	proc_state_ptr->proctitle[0] = '\0';
349	>	do {
350	>	sg_strlcat(proc_state_ptr->proctitle, p, size+1);
351	>	sg_strlcat(proc_state_ptr->proctitle, " ", size+1);
352	>	p += strlen(p) + 1;
353	>	} while (p < proctitle + size);
354	>	free(proctitle);
355	>	/* remove trailing space */
356	>	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
357	>	}
358	>	else {
359	>	free(proctitle);
360	>	proc_state_ptr->proctitle = NULL;
361	>	}
362	>	#else
363	>	free(proc_state_ptr->proctitle);
364	>	if(kvmd != NULL) {
365	>	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
366	>	if(args != NULL) {
367	>	argsp = args;
368	>	while(*argsp != NULL) {
369	>	argslen += strlen(*argsp) + 1;
370	>	argsp++;
371	>	}
372	>	proctitle = malloc(argslen + 1);
373	>	proctitle[0] = '\0';
374	>	if(proctitle == NULL) {
375	>	return NULL;
376	>	}
377	>	while(*args != NULL) {
378	>	sg_strlcat(proctitle, *args, argslen + 1);
379	>	sg_strlcat(proctitle, " ", argslen + 1);
380	>	args++;
381	>	}
382	>	/* remove trailing space */
383	>	proctitle[strlen(proctitle)-1] = '\0';
384	>	proc_state_ptr->proctitle = proctitle;
385	>	}
386	>	else {
387	>	proc_state_ptr->proctitle = NULL;
388	>	}
389	>	}
390	>	else {
391	>	proc_state_ptr->proctitle = NULL;
392	>	}
393	>	#endif
394	>
395	>	#ifdef FREEBSD5
396	>	proc_state_ptr->pid = kp_stats[i].ki_pid;
397	>	proc_state_ptr->parent = kp_stats[i].ki_ppid;
398	>	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
399	>	#else
400	>	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
401	>	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
402	>	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
403	>	#endif
404	>
405	>	#ifdef FREEBSD5
406	>	proc_state_ptr->uid = kp_stats[i].ki_ruid;
407	>	proc_state_ptr->euid = kp_stats[i].ki_uid;
408	>	proc_state_ptr->gid = kp_stats[i].ki_rgid;
409	>	proc_state_ptr->egid = kp_stats[i].ki_svgid;
410	>	#elif defined(DFBSD)
411	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid;
412	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid;
413	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid;
414	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid;
415	>	#else
416	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
417	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
418	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
419	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
420	>	#endif
421	>
422	>	#ifdef FREEBSD5
423	>	proc_state_ptr->proc_size = kp_stats[i].ki_size;
424	>	/* This is in pages */
425	>	proc_state_ptr->proc_resident =
426	>	kp_stats[i].ki_rssize * getpagesize();
427	>	/* This is in microseconds */
428	>	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
429	>	proc_state_ptr->cpu_percent =
430	>	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
431	>	proc_state_ptr->nice = kp_stats[i].ki_nice;
432	>	#else
433	>	proc_state_ptr->proc_size =
434	>	kp_stats[i].kp_eproc.e_vm.vm_map.size;
435	>	/* This is in pages */
436	>	proc_state_ptr->proc_resident =
437	>	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
438	>	#if defined(NETBSD) || defined(OPENBSD)
439	>	proc_state_ptr->time_spent =
440	>	kp_stats[i].kp_proc.p_rtime.tv_sec;
441	>	#elif defined(DFBSD)
442	>	proc_state_ptr->time_spent =
443	>	( kp_stats[i].kp_thread.td_uticks +
444	>	kp_stats[i].kp_thread.td_sticks +
445	>	kp_stats[i].kp_thread.td_iticks ) / 1000000;
446	>	#else
447	>	/* This is in microseconds */
448	>	proc_state_ptr->time_spent =
449	>	kp_stats[i].kp_proc.p_runtime / 1000000;
450	>	#endif
451	>	proc_state_ptr->cpu_percent =
452	>	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
453	>	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
454	>	#endif
455	>
456	>	#ifdef FREEBSD5
457	>	switch (kp_stats[i].ki_stat) {
458	>	#else
459	>	switch (kp_stats[i].kp_proc.p_stat) {
460	>	#endif
461	>	case SIDL:
462	>	case SRUN:
463	>	#ifdef SONPROC
464	>	case SONPROC: /* NetBSD */
465	>	#endif
466	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
467	>	break;
468	>	case SSLEEP:
469	>	#ifdef SWAIT
470	>	case SWAIT: /* FreeBSD 5 */
471	>	#endif
472	>	#ifdef SLOCK
473	>	case SLOCK: /* FreeBSD 5 */
474	>	#endif
475	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
476	>	break;
477	>	case SSTOP:
478	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
479	>	break;
480	>	case SZOMB:
481	>	#ifdef SDEAD
482	>	case SDEAD: /* OpenBSD & NetBSD */
483	>	#endif
484	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
485	>	break;
486	>	default:
487	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
488	>	break;
489	>	}
490	>	proc_state_size++;
491	>	}
492	>
493	>	free(kp_stats);
494	>	#endif
495	>
496	>	#ifdef CYGWIN
497	>	return NULL;
498	>	#endif
499	>
500	>	*entries = proc_state_size;
501	>	return proc_state;
502		}
503
504	+	sg_process_count *sg_get_process_count() {
505	+	static sg_process_count process_stat;
506	+	sg_process_stats *ps;
507	+	int ps_size, x;
508	+
509	+	process_stat.sleeping = 0;
510	+	process_stat.running = 0;
511	+	process_stat.zombie = 0;
512	+	process_stat.stopped = 0;
513	+	process_stat.total = 0;
514	+
515	+	ps = sg_get_process_stats(&ps_size);
516	+	if (ps == NULL) {
517	+	return NULL;
518	+	}
519	+
520	+	for(x = 0; x < ps_size; x++) {
521	+	switch (ps->state) {
522	+	case SG_PROCESS_STATE_RUNNING:
523	+	process_stat.running++;
524	+	break;
525	+	case SG_PROCESS_STATE_SLEEPING:
526	+	process_stat.sleeping++;
527	+	break;
528	+	case SG_PROCESS_STATE_STOPPED:
529	+	process_stat.stopped++;
530	+	break;
531	+	case SG_PROCESS_STATE_ZOMBIE:
532	+	process_stat.zombie++;
533	+	break;
534	+	default:
535	+	/* currently no mapping for SG_PROCESS_STATE_UNKNOWN in
536	+	* sg_process_count */
537	+	break;
538	+	}
539	+	ps++;
540	+	}
541	+
542	+	process_stat.total = ps_size;
543	+
544	+	return &process_stat;
545	+	}

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