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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 1.57 by tdb, Tue Apr 6 14:52:58 2004 UTC vs.
Revision 1.73 by tdb, Mon Jun 21 14:48:48 2004 UTC

#	Line 51 | Line 51
51		#define MAX_FILE_LENGTH PATH_MAX
52		#endif
53		#ifdef ALLBSD
54	+	#include <errno.h>
55		#include <stdlib.h>
56		#include <sys/param.h>
57		#include <sys/sysctl.h>
#	Line 65 | Line 66
66		#include <limits.h>
67		#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
68		#include <kvm.h>
68	–	#include <tools.h>
69		#endif
70		#include <unistd.h>
71		#ifdef NETBSD2
#	Line 85 | Line 85 | static void proc_state_destroy(sg_process_stats *s) {
85
86		sg_process_stats *sg_get_process_stats(int *entries){
87		VECTOR_DECLARE_STATIC(proc_state, sg_process_stats, 64,
88	<	proc_state_init, proc_state_destroy);
88	>	proc_state_init, proc_state_destroy);
89		int proc_state_size = 0;
90		sg_process_stats *proc_state_ptr;
91		#ifdef ALLBSD
#	Line 100 | Line 100 | sg_process_stats *sg_get_process_stats(int *entries){
100		int argslen = 0;
101		#else
102		long buflen;
103	<	char *p;
103	>	char *p, *proctitletmp;
104		#endif
105		#ifdef NETBSD2
106		int lwps;
#	Line 108 | Line 108 | sg_process_stats *sg_get_process_stats(int *entries){
108		#endif
109		#endif
110		#if defined(SOLARIS) || defined(LINUX)
111	<	DIR *proc_dir;
112	<	struct dirent *dir_entry;
113	<	char filename[MAX_FILE_LENGTH];
114	<	FILE *f;
111	>	DIR *proc_dir;
112	>	struct dirent *dir_entry;
113	>	char filename[MAX_FILE_LENGTH];
114	>	FILE *f;
115		#ifdef SOLARIS
116		psinfo_t process_info;
117		#endif
#	Line 121 | Line 121 | sg_process_stats *sg_get_process_stats(int *entries){
121		char ps_name[4096];
122		char *ptr;
123		VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
124	<	unsigned long stime, utime;
124	>	unsigned long stime, utime, starttime;
125		int x;
126		int fn;
127		int len;
128		int rc;
129	+	time_t uptime;
130		#endif
131
132	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
133	<	return NULL;
134	<	}
132	>	#ifdef LINUX
133	>	if ((f=fopen("/proc/uptime", "r")) == NULL) {
134	>	sg_set_error(SG_ERROR_OPEN, "/proc/uptime");
135	>	return NULL;
136	>	}
137	>	if((fscanf(f,"%lu %*d",&uptime)) != 1){
138	>	sg_set_error(SG_ERROR_PARSE, NULL);
139	>	return NULL;
140	>	}
141	>	fclose(f);
142	>	#endif
143
144	<	while((dir_entry=readdir(proc_dir))!=NULL){
145	<	if(atoi(dir_entry->d_name) == 0) continue;
144	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
145	>	sg_set_error(SG_ERROR_OPENDIR, PROC_LOCATION);
146	>	return NULL;
147	>	}
148
149	+	while((dir_entry=readdir(proc_dir))!=NULL){
150	+	if(atoi(dir_entry->d_name) == 0) continue;
151	+
152		#ifdef SOLARIS
153	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
153	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
154		#endif
155		#ifdef LINUX
156		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
157		#endif
158	<	if((f=fopen(filename, "r"))==NULL){
159	<	/* Open failed.. Process since vanished, or the path was too long.
160	<	* Ah well, move onwards to the next one */
161	<	continue;
162	<	}
158	>	if((f=fopen(filename, "r"))==NULL){
159	>	/* Open failed.. Process since vanished, or the path was too long.
160	>	* Ah well, move onwards to the next one */
161	>	continue;
162	>	}
163		#ifdef SOLARIS
164	<	fread(&process_info, sizeof(psinfo_t), 1, f);
164	>	fread(&process_info, sizeof(psinfo_t), 1, f);
165	>	fclose(f);
166		#endif
167
168		if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
#	Line 167 | Line 182 | sg_process_stats *sg_get_process_stats(int *entries){
182		proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024;
183		proc_state_ptr->time_spent = process_info.pr_time.tv_sec;
184		proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000;
185	<	proc_state_ptr->process_name = strdup(process_info.pr_fname);
186	<	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
185	>	proc_state_ptr->nice = (int)process_info.pr_lwp.pr_nice - 20;
186	>	if (sg_update_string(&proc_state_ptr->process_name,
187	>	process_info.pr_fname) < 0) {
188	>	return NULL;
189	>	}
190	>	if (sg_update_string(&proc_state_ptr->proctitle,
191	>	process_info.pr_psargs) < 0) {
192	>	return NULL;
193	>	}
194
195	<	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
196	<	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
197	<	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
198	<	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
199	<	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
195	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
196	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
197	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
198	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
199	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
200		#endif
201		#ifdef LINUX
202	<	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));
203	<	proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
202	>	x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*u %*u %*u %*u %*u %lu %lu %*d %*d %*d %d %*d %*d %lu %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), &starttime, &(proc_state_ptr->proc_size), &(proc_state_ptr->proc_resident));
203	>	/* +3 becuase man page says "Resident  Set Size: number of pages the process has in real memory, minus 3 for administrative purposes." */
204	>	proc_state_ptr->proc_resident = (proc_state_ptr->proc_resident + 3) * getpagesize();
205		if(s == 'S') proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
206		if(s == 'R') proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
207		if(s == 'Z') proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
#	Line 190 | Line 213 | sg_process_stats *sg_get_process_stats(int *entries){
213		if(ptr !=NULL) *ptr='\0';
214
215		if (sg_update_string(&proc_state_ptr->process_name,
216	<	&ps_name[1]) < 0) {
216	>	&ps_name[1]) < 0) {
217		return NULL;
218		}
219
220	<	/* Need to do cpu */
221	<
220	>	/* cpu */
221	>	proc_state_ptr->cpu_percent = (100.0 * (utime + stime)) / ((uptime * 100.0) - starttime);
222
223	<	fclose(f);
223	>	fclose(f);
224
225	+	/* uid / gid */
226	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
227	+	if ((f=fopen(filename, "r")) == NULL) {
228	+	/* Open failed.. Process since vanished, or the path was too long.
229	+	* Ah well, move onwards to the next one */
230	+	continue;
231	+	}
232	+
233	+	if((ptr=sg_f_read_line(f, "Uid:"))==NULL){
234	+	fclose(f);
235	+	continue;
236	+	}
237	+	sscanf(ptr, "Uid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->uid), &(proc_state_ptr->euid));
238	+
239	+	if((ptr=sg_f_read_line(f, "Gid:"))==NULL){
240	+	fclose(f);
241	+	continue;
242	+	}
243	+	sscanf(ptr, "Gid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->gid), &(proc_state_ptr->egid));
244	+
245	+	fclose(f);
246	+
247		/* proctitle */
248		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
249
250	<	if((fn=open(filename, O_RDONLY)) == -1){
251	<	/* Open failed.. Process since vanished, or the path was too long.
252	<	* Ah well, move onwards to the next one */
253	<	continue;
254	<	}
250	>	if((fn=open(filename, O_RDONLY)) == -1){
251	>	/* Open failed.. Process since vanished, or the path was too long.
252	>	* Ah well, move onwards to the next one */
253	>	continue;
254	>	}
255
256		#define READ_BLOCK_SIZE 128
257		len = 0;
#	Line 252 | Line 297 | sg_process_stats *sg_get_process_stats(int *entries){
297		#endif
298
299		proc_state_size++;
300	<	}
301	<	closedir(proc_dir);
300	>	}
301	>	closedir(proc_dir);
302		#endif
303
304		#ifdef ALLBSD
#	Line 262 | Line 307 | sg_process_stats *sg_get_process_stats(int *entries){
307		mib[2] = KERN_PROC_ALL;
308
309		if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
310	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
311		return NULL;
312		}
313
314		procs = size / sizeof(struct kinfo_proc);
315
316	<	kp_stats = malloc(size);
316	>	kp_stats = sg_malloc(size);
317		if(kp_stats == NULL) {
318		return NULL;
319		}
320		memset(kp_stats, 0, size);
321
322		if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
323	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
324		free(kp_stats);
325		return NULL;
326		}
#	Line 315 | Line 362 | sg_process_stats *sg_get_process_stats(int *entries){
362		}
363
364		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
318	–	size = sizeof(buflen);
365
366		#ifdef FREEBSD5
321	–	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
322	–	return NULL;
323	–	}
324	–	#else
325	–	/* FIXME - this value can be too large on some of
326	–	the BSD's, which causes sysctl not to return
327	–	anything. Maybe we need something smaller? */
328	–	mib[1] = KERN_ARGMAX;
329	–
330	–	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
331	–	return NULL;
332	–	}
333	–	#endif
334	–
335	–	proctitle = malloc(buflen);
336	–	if(proctitle == NULL) {
337	–	return NULL;
338	–	}
339	–
340	–	size = buflen;
341	–
342	–	#ifdef FREEBSD5
367		mib[2] = KERN_PROC_ARGS;
368		mib[3] = kp_stats[i].ki_pid;
369		#else
#	Line 349 | Line 373 | sg_process_stats *sg_get_process_stats(int *entries){
373		#endif
374
375		free(proc_state_ptr->proctitle);
376	<	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
377	<	free(proctitle);
378	<	proc_state_ptr->proctitle = NULL;
379	<	}
380	<	else if(size > 0) {
381	<	proc_state_ptr->proctitle = malloc(size+1);
376	>	proc_state_ptr->proctitle = NULL;
377	>
378	>	/* Starting size - we'll double this straight away */
379	>	#define PROCTITLE_START_SIZE 64
380	>	buflen = PROCTITLE_START_SIZE;
381	>	size = buflen;
382	>	proctitle = NULL;
383	>
384	>	do {
385	>	if(size >= buflen) {
386	>	buflen *= 2;
387	>	size = buflen;
388	>	proctitletmp = sg_realloc(proctitle, buflen);
389	>	if(proctitletmp == NULL) {
390	>	free(proctitle);
391	>	proctitle = NULL;
392	>	proc_state_ptr->proctitle = NULL;
393	>	size = 0;
394	>	break;
395	>	}
396	>	proctitle = proctitletmp;
397	>	bzero(proctitle, buflen);
398	>	}
399	>
400	>	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
401	>	free(proctitle);
402	>	proctitle = NULL;
403	>	proc_state_ptr->proctitle = NULL;
404	>	size = 0;
405	>	break;
406	>	}
407	>	} while(size >= buflen);
408	>
409	>	if(size > 0) {
410	>	proc_state_ptr->proctitle = sg_malloc(size+1);
411		if(proc_state_ptr->proctitle == NULL) {
412		return NULL;
413		}
414		p = proctitle;
415	+	#ifdef OPENBSD
416	+	/* On OpenBSD, this value has the argv pointers (which
417	+	* are terminated by a NULL) at the front, so we have
418	+	* to skip over them to get to the strings. */
419	+	while (*(char ***)p != NULL) {
420	+	p += sizeof(char **);
421	+	}
422	+	p += sizeof(char **);
423	+	#endif
424		proc_state_ptr->proctitle[0] = '\0';
425		do {
426		sg_strlcat(proc_state_ptr->proctitle, p, size+1);
#	Line 366 | Line 428 | sg_process_stats *sg_get_process_stats(int *entries){
428		p += strlen(p) + 1;
429		} while (p < proctitle + size);
430		free(proctitle);
431	+	proctitle = NULL;
432		/* remove trailing space */
433		proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
434		}
435		else {
436	<	free(proctitle);
436	>	if(proctitle != NULL) {
437	>	free(proctitle);
438	>	proctitle = NULL;
439	>	}
440		proc_state_ptr->proctitle = NULL;
441		}
442		#else
443		free(proc_state_ptr->proctitle);
444	+	proc_state_ptr->proctitle = NULL;
445		if(kvmd != NULL) {
446		args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
447		if(args != NULL) {
#	Line 383 | Line 450 | sg_process_stats *sg_get_process_stats(int *entries){
450		argslen += strlen(*argsp) + 1;
451		argsp++;
452		}
453	<	proctitle = malloc(argslen + 1);
453	>	proctitle = sg_malloc(argslen + 1);
454		proctitle[0] = '\0';
455		if(proctitle == NULL) {
456		return NULL;
#	Line 479 | Line 546 | sg_process_stats *sg_get_process_stats(int *entries){
546		mib[4] = 0;
547
548		if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
549	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
550		return NULL;
551		}
552
553		lwps = size / sizeof(struct kinfo_lwp);
554		mib[4] = lwps;
555
556	<	kl_stats = malloc(size);
556	>	kl_stats = sg_malloc(size);
557		if(kl_stats == NULL) {
558		return NULL;
559		}
560
561		if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
562	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
563		return NULL;
564		}
565		}
#	Line 532 | Line 601 | sg_process_stats *sg_get_process_stats(int *entries){
601		proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
602		break;
603		}
604	+
605	+	free(kl_stats);
606		#else
607		#ifdef FREEBSD5
608		switch (kp_stats[i].ki_stat) {
#	Line 575 | Line 646 | sg_process_stats *sg_get_process_stats(int *entries){
646		#endif
647
648		#ifdef CYGWIN
649	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
650		return NULL;
651		#endif
652
#	Line 624 | Line 696 | sg_process_count *sg_get_process_count() {
696
697		return &process_stat;
698		}
699	+
700	+	int sg_process_compare_name(const void *va, const void *vb) {
701	+	const sg_process_stats *a = (sg_process_stats *)va;
702	+	const sg_process_stats *b = (sg_process_stats *)vb;
703	+
704	+	return strcmp(a->process_name, b->process_name);
705	+	}
706	+
707	+	int sg_process_compare_pid(const void *va, const void *vb) {
708	+	const sg_process_stats *a = (sg_process_stats *)va;
709	+	const sg_process_stats *b = (sg_process_stats *)vb;
710	+
711	+	if (a->pid < b->pid) {
712	+	return -1;
713	+	} else if (a->pid == b->pid) {
714	+	return 0;
715	+	} else {
716	+	return 1;
717	+	}
718	+	}
719	+
720	+	int sg_process_compare_uid(const void *va, const void *vb) {
721	+	const sg_process_stats *a = (sg_process_stats *)va;
722	+	const sg_process_stats *b = (sg_process_stats *)vb;
723	+
724	+	if (a->uid < b->uid) {
725	+	return -1;
726	+	} else if (a->uid == b->uid) {
727	+	return 0;
728	+	} else {
729	+	return 1;
730	+	}
731	+	}
732	+
733	+	int sg_process_compare_gid(const void *va, const void *vb) {
734	+	const sg_process_stats *a = (sg_process_stats *)va;
735	+	const sg_process_stats *b = (sg_process_stats *)vb;
736	+
737	+	if (a->gid < b->gid) {
738	+	return -1;
739	+	} else if (a->gid == b->gid) {
740	+	return 0;
741	+	} else {
742	+	return 1;
743	+	}
744	+	}
745	+
746	+	int sg_process_compare_size(const void *va, const void *vb) {
747	+	const sg_process_stats *a = (sg_process_stats *)va;
748	+	const sg_process_stats *b = (sg_process_stats *)vb;
749	+
750	+	if (a->proc_size < b->proc_size) {
751	+	return -1;
752	+	} else if (a->proc_size == b->proc_size) {
753	+	return 0;
754	+	} else {
755	+	return 1;
756	+	}
757	+	}
758	+
759	+	int sg_process_compare_res(const void *va, const void *vb) {
760	+	const sg_process_stats *a = (sg_process_stats *)va;
761	+	const sg_process_stats *b = (sg_process_stats *)vb;
762	+
763	+	if (a->proc_resident < b->proc_resident) {
764	+	return -1;
765	+	} else if (a->proc_resident == b->proc_resident) {
766	+	return 0;
767	+	} else {
768	+	return 1;
769	+	}
770	+	}
771	+
772	+	int sg_process_compare_cpu(const void *va, const void *vb) {
773	+	const sg_process_stats *a = (sg_process_stats *)va;
774	+	const sg_process_stats *b = (sg_process_stats *)vb;
775	+
776	+	if (a->cpu_percent < b->cpu_percent) {
777	+	return -1;
778	+	} else if (a->cpu_percent == b->cpu_percent) {
779	+	return 0;
780	+	} else {
781	+	return 1;
782	+	}
783	+	}
784	+
785	+	int sg_process_compare_time(const void *va, const void *vb) {
786	+	const sg_process_stats *a = (sg_process_stats *)va;
787	+	const sg_process_stats *b = (sg_process_stats *)vb;
788	+
789	+	if (a->time_spent < b->time_spent) {
790	+	return -1;
791	+	} else if (a->time_spent == b->time_spent) {
792	+	return 0;
793	+	} else {
794	+	return 1;
795	+	}
796	+	}
797	+

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