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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 1.27 by tdb, Fri Apr 2 21:20:23 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 57 | 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	+	sg_process_stats *proc_state_ptr;
88		#ifdef ALLBSD
89	<	int mib[3];
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;
#	Line 82 | Line 113 | int get_proc_snapshot(proc_state_t **ps){
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	<	static char *psargs = NULL;
86	<	static int psarg_size = 0;
116	>	VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
117		unsigned long stime, utime;
118		int x;
119		int fn;
120	<	int toread;
121	<	ssize_t size;
92	<	int t_read;
120	>	int len;
121	>	int rc;
122		#endif
123
124		if((proc_dir=opendir(PROC_LOCATION))==NULL){
125	<	return -1;
125	>	return NULL;
126		}
127
128		while((dir_entry=readdir(proc_dir))!=NULL){
#	Line 114 | Line 143 | int get_proc_snapshot(proc_state_t **ps){
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));
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	+
151		#ifdef SOLARIS
152		proc_state_ptr->pid = process_info.pr_pid;
153		proc_state_ptr->parent = process_info.pr_ppid;
#	Line 131 | 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	<	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
167	<	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
168	<	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
169	<	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
170	<	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING;
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 %*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));
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 = SLEEPING;
176	<	if(s == 'R') proc_state_ptr->state = RUNNING;
177	<	if(s == 'Z') proc_state_ptr->state = ZOMBIE;
178	<	if(s == 'T') proc_state_ptr->state = STOPPED;
179	<	if(s == 'D') proc_state_ptr->state = STOPPED;
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';
152	–	proc_state_ptr->process_name = strdup(&ps_name[1]);
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
#	Line 162 | Line 200 | int get_proc_snapshot(proc_state_t **ps){
200		* Ah well, move onwards to the next one */
201		continue;
202		}
203	<	#define         PSARG_START_SIZE 128
204	<	if(psargs == NULL){
205	<	psargs = malloc(PSARG_START_SIZE);
206	<	psarg_size = PSARG_START_SIZE;
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		}
170	–	ptr = psargs;
171	–	t_read = 0;
172	–	toread = psarg_size;
173	–	while((size = read(fn, ptr, toread)) == toread){
174	–	psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE));
175	–	ptr = psargs+psarg_size;
176	–	t_read = psarg_size;
177	–	psarg_size+=PSARG_START_SIZE;
178	–	toread = PSARG_START_SIZE;
179	–	}
180	–	if(size != -1) t_read+=size;
221
222	+	/* Turn \0s into spaces within the command line. */
223		ptr = psargs;
224	<	for(x=0; x<t_read; x++){
224	>	for(x = 0; x < len; x++) {
225		if (*ptr == '\0') *ptr = ' ';
226		ptr++;
227		}
187	–	/*  for safety sake */
188	–	psargs[t_read] = '\0';
228
229	<	proc_state_ptr->proctitle = strdup(psargs);
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++;
195	–
196	–	fclose(f);
248		}
249		closedir(proc_dir);
250		#endif
#	Line 203 | Line 254 | int get_proc_snapshot(proc_state_t **ps){
254		mib[1] = KERN_PROC;
255		mib[2] = KERN_PROC_ALL;
256
257	<	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
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) {
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) {
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	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
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;
225	–
226	–	proc_state_ptr->process_name = strdup(kp_stats[i].ki_comm);
227	–	/* Seems we don't have access to that bit of memory */
228	–	/*proc_state_ptr->proctitle = strdup(kp_stats[i].ki_args->ar_args);*/
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 = kp_stats[i].ki_rssize * getpagesize();
426	<	/* This seems to be in microseconds */
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 = kp_stats[i].ki_pctcpu;
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 = RUNNING;
466	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
467		break;
468		case SSLEEP:
469		#ifdef SWAIT
#	Line 259 | Line 472 | int get_proc_snapshot(proc_state_t **ps){
472		#ifdef SLOCK
473		case SLOCK: /* FreeBSD 5 */
474		#endif
475	<	proc_state_ptr->state = SLEEPING;
475	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
476		break;
477		case SSTOP:
478	<	proc_state_ptr->state = STOPPED;
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 = ZOMBIE;
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		}
#	Line 277 | Line 493 | int get_proc_snapshot(proc_state_t **ps){
493		free(kp_stats);
494		#endif
495
496	<	*ps = proc_state;
497	<	return proc_state_size;
496	>	#ifdef CYGWIN
497	>	return NULL;
498	>	#endif
499	>
500	>	*entries = proc_state_size;
501	>	return proc_state;
502		}
503
504	<	process_stat_t *get_process_stats() {
505	<	static process_stat_t process_stat;
506	<	proc_state_t *ps;
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;
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_size = get_proc_snapshot(&ps);
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 RUNNING:
522	>	case SG_PROCESS_STATE_RUNNING:
523		process_stat.running++;
524		break;
525	<	case SLEEPING:
525	>	case SG_PROCESS_STATE_SLEEPING:
526		process_stat.sleeping++;
527		break;
528	<	case STOPPED:
528	>	case SG_PROCESS_STATE_STOPPED:
529		process_stat.stopped++;
530		break;
531	<	case ZOMBIE:
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++;

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