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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 1.64 by pajs, Wed Apr 7 15:46:34 2004 UTC vs.
Revision 1.75 by ats, Fri Sep 10 15:15:00 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 99 | 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 130 | Line 131 | sg_process_stats *sg_get_process_stats(int *entries){
131
132		#ifdef LINUX
133		if ((f=fopen("/proc/uptime", "r")) == NULL) {
134	+	sg_set_error_with_errno(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		if((proc_dir=opendir(PROC_LOCATION))==NULL){
145	+	sg_set_error_with_errno(SG_ERROR_OPENDIR, PROC_LOCATION);
146		return NULL;
147		}
148
#	Line 188 | Line 192 | sg_process_stats *sg_get_process_stats(int *entries){
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	>	switch (process_info.pr_lwp.pr_state) {
196	>	case 1:
197	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
198	>	break;
199	>	case 2:
200	>	case 5:
201	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
202	>	break;
203	>	case 3:
204	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
205	>	break;
206	>	case 4:
207	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
208	>	break;
209	>	}
210		#endif
211		#ifdef LINUX
212		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));
213		/* +3 becuase man page says "Resident  Set Size: number of pages the process has in real memory, minus 3 for administrative purposes." */
214		proc_state_ptr->proc_resident = (proc_state_ptr->proc_resident + 3) * getpagesize();
215	<	if(s == 'S') proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
216	<	if(s == 'R') proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
217	<	if(s == 'Z') proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
218	<	if(s == 'T') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
219	<	if(s == 'D') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
215	>	switch (s) {
216	>	case 'S':
217	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
218	>	break;
219	>	case 'R':
220	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
221	>	break;
222	>	case 'Z':
223	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
224	>	break;
225	>	case 'T':
226	>	case 'D':
227	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
228	>	break;
229	>	}
230
231		/* pa_name[0] should = '(' */
232		ptr = strchr(&ps_name[1], ')');
#	Line 303 | Line 327 | sg_process_stats *sg_get_process_stats(int *entries){
327		mib[2] = KERN_PROC_ALL;
328
329		if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
330	+	sg_set_error_with_errno(SG_ERROR_SYSCTL,
331	+	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
332		return NULL;
333		}
334
#	Line 315 | Line 341 | sg_process_stats *sg_get_process_stats(int *entries){
341		memset(kp_stats, 0, size);
342
343		if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
344	+	sg_set_error_with_errno(SG_ERROR_SYSCTL,
345	+	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
346		free(kp_stats);
347		return NULL;
348		}
#	Line 356 | Line 384 | sg_process_stats *sg_get_process_stats(int *entries){
384		}
385
386		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
359	–	size = sizeof(buflen);
387
388		#ifdef FREEBSD5
362	–	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
363	–	return NULL;
364	–	}
365	–	#else
366	–	/* FIXME - this value can be too large on some of
367	–	the BSD's, which causes sysctl not to return
368	–	anything. Maybe we need something smaller? */
369	–	mib[1] = KERN_ARGMAX;
370	–
371	–	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
372	–	return NULL;
373	–	}
374	–	#endif
375	–
376	–	proctitle = sg_malloc(buflen);
377	–	if(proctitle == NULL) {
378	–	return NULL;
379	–	}
380	–
381	–	size = buflen;
382	–
383	–	#ifdef FREEBSD5
389		mib[2] = KERN_PROC_ARGS;
390		mib[3] = kp_stats[i].ki_pid;
391		#else
#	Line 390 | Line 395 | sg_process_stats *sg_get_process_stats(int *entries){
395		#endif
396
397		free(proc_state_ptr->proctitle);
398	<	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
399	<	free(proctitle);
400	<	proc_state_ptr->proctitle = NULL;
401	<	}
402	<	else if(size > 0) {
398	>	proc_state_ptr->proctitle = NULL;
399	>
400	>	/* Starting size - we'll double this straight away */
401	>	#define PROCTITLE_START_SIZE 64
402	>	buflen = PROCTITLE_START_SIZE;
403	>	size = buflen;
404	>	proctitle = NULL;
405	>
406	>	do {
407	>	if(size >= buflen) {
408	>	buflen *= 2;
409	>	size = buflen;
410	>	proctitletmp = sg_realloc(proctitle, buflen);
411	>	if(proctitletmp == NULL) {
412	>	free(proctitle);
413	>	proctitle = NULL;
414	>	proc_state_ptr->proctitle = NULL;
415	>	size = 0;
416	>	break;
417	>	}
418	>	proctitle = proctitletmp;
419	>	bzero(proctitle, buflen);
420	>	}
421	>
422	>	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
423	>	free(proctitle);
424	>	proctitle = NULL;
425	>	proc_state_ptr->proctitle = NULL;
426	>	size = 0;
427	>	break;
428	>	}
429	>	} while(size >= buflen);
430	>
431	>	if(size > 0) {
432		proc_state_ptr->proctitle = sg_malloc(size+1);
433		if(proc_state_ptr->proctitle == NULL) {
434		return NULL;
435		}
436		p = proctitle;
437	+	#ifdef OPENBSD
438	+	/* On OpenBSD, this value has the argv pointers (which
439	+	* are terminated by a NULL) at the front, so we have
440	+	* to skip over them to get to the strings. */
441	+	while (*(char ***)p != NULL) {
442	+	p += sizeof(char **);
443	+	}
444	+	p += sizeof(char **);
445	+	#endif
446		proc_state_ptr->proctitle[0] = '\0';
447		do {
448		sg_strlcat(proc_state_ptr->proctitle, p, size+1);
#	Line 407 | Line 450 | sg_process_stats *sg_get_process_stats(int *entries){
450		p += strlen(p) + 1;
451		} while (p < proctitle + size);
452		free(proctitle);
453	+	proctitle = NULL;
454		/* remove trailing space */
455		proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
456		}
457		else {
458	<	free(proctitle);
458	>	if(proctitle != NULL) {
459	>	free(proctitle);
460	>	proctitle = NULL;
461	>	}
462		proc_state_ptr->proctitle = NULL;
463		}
464		#else
465		free(proc_state_ptr->proctitle);
466	+	proc_state_ptr->proctitle = NULL;
467		if(kvmd != NULL) {
468		args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
469		if(args != NULL) {
#	Line 520 | Line 568 | sg_process_stats *sg_get_process_stats(int *entries){
568		mib[4] = 0;
569
570		if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
571	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
572		return NULL;
573		}
574
#	Line 532 | Line 581 | sg_process_stats *sg_get_process_stats(int *entries){
581		}
582
583		if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
584	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
585		return NULL;
586		}
587		}
#	Line 573 | Line 623 | sg_process_stats *sg_get_process_stats(int *entries){
623		proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
624		break;
625		}
626	+
627	+	free(kl_stats);
628		#else
629		#ifdef FREEBSD5
630		switch (kp_stats[i].ki_stat) {
#	Line 616 | Line 668 | sg_process_stats *sg_get_process_stats(int *entries){
668		#endif
669
670		#ifdef CYGWIN
671	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
672		return NULL;
673		#endif
674
#	Line 665 | Line 718 | sg_process_count *sg_get_process_count() {
718
719		return &process_stat;
720		}
721	+
722	+	int sg_process_compare_name(const void *va, const void *vb) {
723	+	const sg_process_stats *a = (sg_process_stats *)va;
724	+	const sg_process_stats *b = (sg_process_stats *)vb;
725	+
726	+	return strcmp(a->process_name, b->process_name);
727	+	}
728	+
729	+	int sg_process_compare_pid(const void *va, const void *vb) {
730	+	const sg_process_stats *a = (sg_process_stats *)va;
731	+	const sg_process_stats *b = (sg_process_stats *)vb;
732	+
733	+	if (a->pid < b->pid) {
734	+	return -1;
735	+	} else if (a->pid == b->pid) {
736	+	return 0;
737	+	} else {
738	+	return 1;
739	+	}
740	+	}
741	+
742	+	int sg_process_compare_uid(const void *va, const void *vb) {
743	+	const sg_process_stats *a = (sg_process_stats *)va;
744	+	const sg_process_stats *b = (sg_process_stats *)vb;
745	+
746	+	if (a->uid < b->uid) {
747	+	return -1;
748	+	} else if (a->uid == b->uid) {
749	+	return 0;
750	+	} else {
751	+	return 1;
752	+	}
753	+	}
754	+
755	+	int sg_process_compare_gid(const void *va, const void *vb) {
756	+	const sg_process_stats *a = (sg_process_stats *)va;
757	+	const sg_process_stats *b = (sg_process_stats *)vb;
758	+
759	+	if (a->gid < b->gid) {
760	+	return -1;
761	+	} else if (a->gid == b->gid) {
762	+	return 0;
763	+	} else {
764	+	return 1;
765	+	}
766	+	}
767	+
768	+	int sg_process_compare_size(const void *va, const void *vb) {
769	+	const sg_process_stats *a = (sg_process_stats *)va;
770	+	const sg_process_stats *b = (sg_process_stats *)vb;
771	+
772	+	if (a->proc_size < b->proc_size) {
773	+	return -1;
774	+	} else if (a->proc_size == b->proc_size) {
775	+	return 0;
776	+	} else {
777	+	return 1;
778	+	}
779	+	}
780	+
781	+	int sg_process_compare_res(const void *va, const void *vb) {
782	+	const sg_process_stats *a = (sg_process_stats *)va;
783	+	const sg_process_stats *b = (sg_process_stats *)vb;
784	+
785	+	if (a->proc_resident < b->proc_resident) {
786	+	return -1;
787	+	} else if (a->proc_resident == b->proc_resident) {
788	+	return 0;
789	+	} else {
790	+	return 1;
791	+	}
792	+	}
793	+
794	+	int sg_process_compare_cpu(const void *va, const void *vb) {
795	+	const sg_process_stats *a = (sg_process_stats *)va;
796	+	const sg_process_stats *b = (sg_process_stats *)vb;
797	+
798	+	if (a->cpu_percent < b->cpu_percent) {
799	+	return -1;
800	+	} else if (a->cpu_percent == b->cpu_percent) {
801	+	return 0;
802	+	} else {
803	+	return 1;
804	+	}
805	+	}
806	+
807	+	int sg_process_compare_time(const void *va, const void *vb) {
808	+	const sg_process_stats *a = (sg_process_stats *)va;
809	+	const sg_process_stats *b = (sg_process_stats *)vb;
810	+
811	+	if (a->time_spent < b->time_spent) {
812	+	return -1;
813	+	} else if (a->time_spent == b->time_spent) {
814	+	return 0;
815	+	} else {
816	+	return 1;
817	+	}
818	+	}
819	+

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