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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 1.49 by ats, Mon Apr 5 01:44:20 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	+	static void proc_state_init(proc_state_t *s) {
74	+	s->process_name = NULL;
75	+	s->proctitle = NULL;
76	+	}
77	+
78	+	static void proc_state_destroy(proc_state_t *s) {
79	+	free(s->process_name);
80	+	free(s->proctitle);
81	+	}
82	+
83		int get_proc_snapshot(proc_state_t **ps){
84	<	proc_state_t *proc_state = NULL;
85	<	proc_state_t *proc_state_ptr;
84	>	VECTOR_DECLARE_STATIC(proc_state, proc_state_t, 64,
85	>	proc_state_init, proc_state_destroy);
86		int proc_state_size = 0;
87	+	proc_state_t *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;
97	+	int alloc;
98	+	char *proctitletmp;
99	+	#else
100	+	long buflen;
101	+	char *p;
102		#endif
103	+	#endif
104		#if defined(SOLARIS) || defined(LINUX)
105		DIR *proc_dir;
106		struct dirent *dir_entry;
#	Line 82 | Line 114 | int get_proc_snapshot(proc_state_t **ps){
114		/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
115		char ps_name[4096];
116		char *ptr;
117	<	static char *psargs = NULL;
86	<	static int psarg_size = 0;
117	>	VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
118		unsigned long stime, utime;
119		int x;
120		int fn;
121	<	int toread;
122	<	ssize_t size;
92	<	int t_read;
121	>	int len;
122	>	int rc;
123		#endif
124
125		if((proc_dir=opendir(PROC_LOCATION))==NULL){
#	Line 114 | Line 144 | int get_proc_snapshot(proc_state_t **ps){
144		fread(&process_info, sizeof(psinfo_t), 1, f);
145		#endif
146
147	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
147	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
148	>	return -1;
149	>	}
150		proc_state_ptr = proc_state+proc_state_size;
151	+
152		#ifdef SOLARIS
153		proc_state_ptr->pid = process_info.pr_pid;
154		proc_state_ptr->parent = process_info.pr_ppid;
#	Line 138 | Line 171 | int get_proc_snapshot(proc_state_t **ps){
171		if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING;
172		#endif
173		#ifdef LINUX
174	<	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));
174	>	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));
175		proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
176		if(s == 'S') proc_state_ptr->state = SLEEPING;
177		if(s == 'R') proc_state_ptr->state = RUNNING;
#	Line 149 | Line 182 | int get_proc_snapshot(proc_state_t **ps){
182		/* pa_name[0] should = '(' */
183		ptr = strchr(&ps_name[1], ')');
184		if(ptr !=NULL) *ptr='\0';
152	–	proc_state_ptr->process_name = strdup(&ps_name[1]);
185
186	+	if (update_string(&proc_state_ptr->process_name,
187	+	&ps_name[1]) == NULL) {
188	+	return -1;
189	+	}
190	+
191		/* Need to do cpu */
192
193
194	+	fclose(f);
195	+
196		/* proctitle */
197		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
198
#	Line 162 | Line 201 | int get_proc_snapshot(proc_state_t **ps){
201		* Ah well, move onwards to the next one */
202		continue;
203		}
204	<	#define         PSARG_START_SIZE 128
205	<	if(psargs == NULL){
206	<	psargs = malloc(PSARG_START_SIZE);
207	<	psarg_size = PSARG_START_SIZE;
204	>
205	>	#define READ_BLOCK_SIZE 128
206	>	len = 0;
207	>	do {
208	>	if (VECTOR_RESIZE(psargs, len + READ_BLOCK_SIZE + 1) < 0) {
209	>	return -1;
210	>	}
211	>	rc = read(fn, psargs + len, READ_BLOCK_SIZE);
212	>	if (rc > 0) {
213	>	len += rc;
214	>	}
215	>	} while (rc == READ_BLOCK_SIZE);
216	>	close(fn);
217	>
218	>	if (rc == -1) {
219	>	/* Read failed; move on. */
220	>	continue;
221		}
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;
222
223	+	/* Turn \0s into spaces within the command line. */
224		ptr = psargs;
225	<	for(x=0; x<t_read; x++){
225	>	for(x = 0; x < len; x++) {
226		if (*ptr == '\0') *ptr = ' ';
227		ptr++;
228		}
229	<	/*  for safety sake */
230	<	psargs[t_read] = '\0';
229	>	/* for safety's sake */
230	>	psargs[len] = '\0';
231
232	<	proc_state_ptr->proctitle = strdup(psargs);
233	<
232	>	if (update_string(&proc_state_ptr->proctitle, psargs) == NULL) {
233	>	return -1;
234	>	}
235		#endif
236
237		proc_state_size++;
195	–
196	–	fclose(f);
238		}
239		closedir(proc_dir);
240		#endif
#	Line 203 | Line 244 | int get_proc_snapshot(proc_state_t **ps){
244		mib[1] = KERN_PROC;
245		mib[2] = KERN_PROC_ALL;
246
247	<	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
248	<	return NULL;
247	>	if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
248	>	return -1;
249		}
250
251		procs = size / sizeof(struct kinfo_proc);
252
253		kp_stats = malloc(size);
254	<	if (kp_stats == NULL) {
255	<	return NULL;
254	>	if(kp_stats == NULL) {
255	>	return -1;
256		}
257
258	<	if (sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
258	>	if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
259		free(kp_stats);
260	<	return NULL;
260	>	return -1;
261		}
262
263	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
264	+	kvmd = get_kvm2();
265	+	#endif
266	+
267		for (i = 0; i < procs; i++) {
268	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
268	>	const char *name;
269	>
270	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
271	>	return -1;
272	>	}
273		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);*/
274
275	+	#ifdef FREEBSD5
276	+	name = kp_stats[i].ki_comm;
277	+	#elif defined(DFBSD)
278	+	name = kp_stats[i].kp_thread.td_comm;
279	+	#else
280	+	name = kp_stats[i].kp_proc.p_comm;
281	+	#endif
282	+	if (update_string(&proc_state_ptr->process_name, name) == NULL) {
283	+	return -1;
284	+	}
285	+
286	+	#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
287	+	size = sizeof(buflen);
288	+
289	+	#ifdef FREEBSD5
290	+	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
291	+	return -1;
292	+	}
293	+	#else
294	+	mib[1] = KERN_ARGMAX;
295	+
296	+	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
297	+	return -1;
298	+	}
299	+	#endif
300	+
301	+	proctitle = malloc(buflen);
302	+	if(proctitle == NULL) {
303	+	return -1;
304	+	}
305	+
306	+	size = buflen;
307	+
308	+	#ifdef FREEBSD5
309	+	mib[2] = KERN_PROC_ARGS;
310	+	mib[3] = kp_stats[i].ki_pid;
311	+	#else
312	+	mib[1] = KERN_PROC_ARGS;
313	+	mib[2] = kp_stats[i].kp_proc.p_pid;
314	+	mib[3] = KERN_PROC_ARGV;
315	+	#endif
316	+
317	+	free(proc_state_ptr->proctitle);
318	+	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
319	+	free(proctitle);
320	+	proc_state_ptr->proctitle = NULL;
321	+	}
322	+	else if(size > 0) {
323	+	proc_state_ptr->proctitle = malloc(size+1);
324	+	if(proc_state_ptr->proctitle == NULL) {
325	+	return -1;
326	+	}
327	+	p = proctitle;
328	+	proc_state_ptr->proctitle[0] = '\0';
329	+	do {
330	+	strlcat(proc_state_ptr->proctitle, p, size+1);
331	+	strlcat(proc_state_ptr->proctitle, " ", size+1);
332	+	p += strlen(p) + 1;
333	+	} while (p < proctitle + size);
334	+	free(proctitle);
335	+	/* remove trailing space */
336	+	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
337	+	}
338	+	else {
339	+	free(proctitle);
340	+	proc_state_ptr->proctitle = NULL;
341	+	}
342	+	#else
343	+	free(proc_state_ptr->proctitle);
344	+	if(kvmd != NULL) {
345	+	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
346	+	if(args != NULL) {
347	+	alloc = 1;
348	+	proctitle = malloc(alloc);
349	+	if(proctitle == NULL) {
350	+	return -1;
351	+	}
352	+	proctitle[0] = '\0';
353	+	while(*args != NULL) {
354	+	if(strlen(proctitle) + strlen(*args) >= alloc) {
355	+	alloc = (alloc + strlen(*args)) * 2;
356	+	proctitletmp = realloc(proctitle, alloc);
357	+	if(proctitletmp == NULL) {
358	+	free(proctitle);
359	+	return -1;
360	+	}
361	+	proctitle = proctitletmp;
362	+	}
363	+	strlcat(proctitle, *args, alloc);
364	+	strlcat(proctitle, " ", alloc);
365	+	args++;
366	+	}
367	+	/* remove trailing space */
368	+	proctitle[strlen(proctitle)-1] = '\0';
369	+	proc_state_ptr->proctitle = proctitle;
370	+	}
371	+	else {
372	+	proc_state_ptr->proctitle = NULL;
373	+	}
374	+	}
375	+	else {
376	+	proc_state_ptr->proctitle = NULL;
377	+	}
378	+	#endif
379	+
380	+	#ifdef FREEBSD5
381		proc_state_ptr->pid = kp_stats[i].ki_pid;
382		proc_state_ptr->parent = kp_stats[i].ki_ppid;
383		proc_state_ptr->pgid = kp_stats[i].ki_pgid;
384	+	#else
385	+	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
386	+	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
387	+	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
388	+	#endif
389
390	+	#ifdef FREEBSD5
391		proc_state_ptr->uid = kp_stats[i].ki_ruid;
392		proc_state_ptr->euid = kp_stats[i].ki_uid;
393		proc_state_ptr->gid = kp_stats[i].ki_rgid;
394		proc_state_ptr->egid = kp_stats[i].ki_svgid;
395	+	#elif defined(DFBSD)
396	+	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid;
397	+	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid;
398	+	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid;
399	+	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid;
400	+	#else
401	+	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
402	+	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
403	+	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
404	+	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
405	+	#endif
406
407	+	#ifdef FREEBSD5
408		proc_state_ptr->proc_size = kp_stats[i].ki_size;
409		/* This is in pages */
410	<	proc_state_ptr->proc_resident = kp_stats[i].ki_rssize * getpagesize();
411	<	/* This seems to be in microseconds */
410	>	proc_state_ptr->proc_resident =
411	>	kp_stats[i].ki_rssize * getpagesize();
412	>	/* This is in microseconds */
413		proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
414	<	proc_state_ptr->cpu_percent = kp_stats[i].ki_pctcpu;
414	>	proc_state_ptr->cpu_percent =
415	>	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
416		proc_state_ptr->nice = kp_stats[i].ki_nice;
417	+	#else
418	+	proc_state_ptr->proc_size =
419	+	kp_stats[i].kp_eproc.e_vm.vm_map.size;
420	+	/* This is in pages */
421	+	proc_state_ptr->proc_resident =
422	+	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
423	+	#if defined(NETBSD) || defined(OPENBSD)
424	+	proc_state_ptr->time_spent =
425	+	kp_stats[i].kp_proc.p_rtime.tv_sec;
426	+	#elif defined(DFBSD)
427	+	proc_state_ptr->time_spent =
428	+	( kp_stats[i].kp_thread.td_uticks +
429	+	kp_stats[i].kp_thread.td_sticks +
430	+	kp_stats[i].kp_thread.td_iticks ) / 1000000;
431	+	#else
432	+	/* This is in microseconds */
433	+	proc_state_ptr->time_spent =
434	+	kp_stats[i].kp_proc.p_runtime / 1000000;
435	+	#endif
436	+	proc_state_ptr->cpu_percent =
437	+	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
438	+	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
439	+	#endif
440
441	+	#ifdef FREEBSD5
442		switch (kp_stats[i].ki_stat) {
443	+	#else
444	+	switch (kp_stats[i].kp_proc.p_stat) {
445	+	#endif
446		case SIDL:
447		case SRUN:
448		#ifdef SONPROC
#	Line 270 | Line 468 | int get_proc_snapshot(proc_state_t **ps){
468		#endif
469		proc_state_ptr->state = ZOMBIE;
470		break;
471	+	default:
472	+	proc_state_ptr->state = UNKNOWN;
473	+	break;
474		}
475		proc_state_size++;
476		}
#	Line 277 | Line 478 | int get_proc_snapshot(proc_state_t **ps){
478		free(kp_stats);
479		#endif
480
481	+	#ifdef CYGWIN
482	+	return -1;
483	+	#endif
484	+
485		*ps = proc_state;
486		return proc_state_size;
487		}
#	Line 286 | Line 491 | process_stat_t *get_process_stats() {
491		proc_state_t *ps;
492		int ps_size, x;
493
494	<	process_stat.sleeping=0;
495	<	process_stat.running=0;
496	<	process_stat.zombie=0;
497	<	process_stat.stopped=0;
498	<	process_stat.total=0;
494	>	process_stat.sleeping = 0;
495	>	process_stat.running = 0;
496	>	process_stat.zombie = 0;
497	>	process_stat.stopped = 0;
498	>	process_stat.total = 0;
499
500		ps_size = get_proc_snapshot(&ps);
501
502	+	if(ps_size < 0) {
503	+	return NULL;
504	+	}
505	+
506		for(x = 0; x < ps_size; x++) {
507		switch (ps->state) {
508		case RUNNING:
#	Line 307 | Line 516 | process_stat_t *get_process_stats() {
516		break;
517		case ZOMBIE:
518		process_stat.zombie++;
519	+	break;
520	+	default:
521	+	/* currently no mapping for UNKNOWN in process_stat_t */
522		break;
523		}
524		ps++;

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