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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 1.44 by tdb, Sun Apr 4 23:24:42 2004 UTC vs.
Revision 1.53 by ats, Mon Apr 5 18:10:11 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 68 | Line 70
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[4];
90		size_t size;
91		struct kinfo_proc *kp_stats;
92		int procs, i;
93	<	char *proctitle, *proctitletmp;
93	>	char *proctitle;
94		#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
95		kvm_t *kvmd;
96	<	char **args;
97	<	int alloc;
96	>	char **args, **argsp;
97	>	int argslen = 0;
98		#else
99		long buflen;
100		char *p;
#	Line 100 | 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;
104	<	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;
110	<	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 132 | 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 149 | 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 %*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';
170	–	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 180 | 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		}
188	–	ptr = psargs;
189	–	t_read = 0;
190	–	toread = psarg_size;
191	–	while((size = read(fn, ptr, toread)) == toread){
192	–	psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE));
193	–	ptr = psargs+psarg_size;
194	–	t_read = psarg_size;
195	–	psarg_size+=PSARG_START_SIZE;
196	–	toread = PSARG_START_SIZE;
197	–	}
198	–	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		}
205	–	/*  for safety sake */
206	–	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++;
213	–
214	–	fclose(f);
248		}
249		closedir(proc_dir);
250		#endif
#	Line 238 | Line 271 | int get_proc_snapshot(proc_state_t **ps){
271		}
272
273		#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
274	<	kvmd = get_kvm2();
274	>	kvmd = sg_get_kvm2();
275		#endif
276
277		for (i = 0; i < procs; i++) {
278	<	/* replace with something more sensible */
279	<	proc_state = realloc(proc_state,
280	<	(1+proc_state_size)*sizeof(proc_state_t));
248	<	if(proc_state == NULL ) {
278	>	const char *name;
279	>
280	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
281		return NULL;
282		}
283		proc_state_ptr = proc_state+proc_state_size;
284
285		#ifdef FREEBSD5
286	<	proc_state_ptr->process_name =
255	<	strdup(kp_stats[i].ki_comm);
286	>	name = kp_stats[i].ki_comm;
287		#elif defined(DFBSD)
288	<	proc_state_ptr->process_name =
258	<	strdup(kp_stats[i].kp_thread.td_comm);
288	>	name = kp_stats[i].kp_thread.td_comm;
289		#else
290	<	proc_state_ptr->process_name =
261	<	strdup(kp_stats[i].kp_proc.p_comm);
290	>	name = kp_stats[i].kp_proc.p_comm;
291		#endif
292	+	if (sg_update_string(&proc_state_ptr->process_name, name) < 0) {
293	+	return NULL;
294	+	}
295
296		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
297		size = sizeof(buflen);
#	Line 292 | Line 324 | int get_proc_snapshot(proc_state_t **ps){
324		mib[3] = KERN_PROC_ARGV;
325		#endif
326
327	+	free(proc_state_ptr->proctitle);
328		if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
329		free(proctitle);
330		proc_state_ptr->proctitle = NULL;
#	Line 302 | Line 335 | int get_proc_snapshot(proc_state_t **ps){
335		return NULL;
336		}
337		p = proctitle;
338	<	proc_state_ptr->proctitle[0] = NULL;
338	>	proc_state_ptr->proctitle[0] = '\0';
339		do {
340	<	strlcat(proc_state_ptr->proctitle, p, size+1);
341	<	strlcat(proc_state_ptr->proctitle, " ", size+1);
340	>	sg_strlcat(proc_state_ptr->proctitle, p, size+1);
341	>	sg_strlcat(proc_state_ptr->proctitle, " ", size+1);
342		p += strlen(p) + 1;
343		} while (p < proctitle + size);
344		free(proctitle);
345	<	/* remove trailing space */
346	<	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = \0;
345	>	/* remove trailing space */
346	>	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
347		}
348		else {
349		free(proctitle);
350		proc_state_ptr->proctitle = NULL;
351		}
352		#else
353	+	free(proc_state_ptr->proctitle);
354		if(kvmd != NULL) {
355		args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
356		if(args != NULL) {
357	<	alloc = 1;
358	<	proctitle = malloc(alloc);
357	>	argsp = args;
358	>	while(*argsp != NULL) {
359	>	argslen += strlen(*argsp) + 1;
360	>	argsp++;
361	>	}
362	>	proctitle = malloc(argslen + 1);
363	>	proctitle[0] = '\0';
364		if(proctitle == NULL) {
365		return NULL;
366		}
367		while(*args != NULL) {
368	<	if(strlen(proctitle) + strlen(*args) >= alloc) {
369	<	alloc = (alloc + strlen(*args)) * 2;
331	<	proctitletmp = realloc(proctitle, alloc);
332	<	if(proctitletmp == NULL) {
333	<	return NULL;
334	<	}
335	<	proctitle = proctitletmp;
336	<	}
337	<	strlcat(proctitle, *args, alloc);
338	<	strlcat(proctitle, " ", alloc);
368	>	sg_strlcat(proctitle, *args, argslen + 1);
369	>	sg_strlcat(proctitle, " ", argslen + 1);
370		args++;
371		}
372		/* remove trailing space */
373	<	proctitle[strlen(proctitle)-1] = \0;
373	>	proctitle[strlen(proctitle)-1] = '\0';
374		proc_state_ptr->proctitle = proctitle;
375		}
376		else {
#	Line 422 | Line 453 | int get_proc_snapshot(proc_state_t **ps){
453		#ifdef SONPROC
454		case SONPROC: /* NetBSD */
455		#endif
456	<	proc_state_ptr->state = RUNNING;
456	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
457		break;
458		case SSLEEP:
459		#ifdef SWAIT
#	Line 431 | Line 462 | int get_proc_snapshot(proc_state_t **ps){
462		#ifdef SLOCK
463		case SLOCK: /* FreeBSD 5 */
464		#endif
465	<	proc_state_ptr->state = SLEEPING;
465	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
466		break;
467		case SSTOP:
468	<	proc_state_ptr->state = STOPPED;
468	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
469		break;
470		case SZOMB:
471		#ifdef SDEAD
472		case SDEAD: /* OpenBSD & NetBSD */
473		#endif
474	<	proc_state_ptr->state = ZOMBIE;
474	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
475		break;
476		default:
477	<	proc_state_ptr->state = UNKNOWN;
477	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
478		break;
479		}
480		proc_state_size++;
#	Line 452 | Line 483 | int get_proc_snapshot(proc_state_t **ps){
483		free(kp_stats);
484		#endif
485
486	<	*ps = proc_state;
487	<	return proc_state_size;
486	>	#ifdef CYGWIN
487	>	return NULL;
488	>	#endif
489	>
490	>	*entries = proc_state_size;
491	>	return proc_state;
492		}
493
494	<	process_stat_t *get_process_stats() {
495	<	static process_stat_t process_stat;
496	<	proc_state_t *ps;
494	>	sg_process_count *sg_get_process_count() {
495	>	static sg_process_count process_stat;
496	>	sg_process_stats *ps;
497		int ps_size, x;
498
499		process_stat.sleeping = 0;
#	Line 467 | Line 502 | process_stat_t *get_process_stats() {
502		process_stat.stopped = 0;
503		process_stat.total = 0;
504
505	<	ps_size = get_proc_snapshot(&ps);
506	<
472	<	if(ps_size == 0) {
505	>	ps = sg_get_process_stats(&ps_size);
506	>	if (ps == NULL) {
507		return NULL;
508		}
509
510		for(x = 0; x < ps_size; x++) {
511		switch (ps->state) {
512	<	case RUNNING:
512	>	case SG_PROCESS_STATE_RUNNING:
513		process_stat.running++;
514		break;
515	<	case SLEEPING:
515	>	case SG_PROCESS_STATE_SLEEPING:
516		process_stat.sleeping++;
517		break;
518	<	case STOPPED:
518	>	case SG_PROCESS_STATE_STOPPED:
519		process_stat.stopped++;
520		break;
521	<	case ZOMBIE:
521	>	case SG_PROCESS_STATE_ZOMBIE:
522		process_stat.zombie++;
523		break;
524		default:
525	<	/* currently no mapping for UNKNOWN in process_stat_t */
525	>	/* currently no mapping for SG_PROCESS_STATE_UNKNOWN in
526	>	* sg_process_count */
527		break;
528		}
529		ps++;

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