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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 1.71 by tdb, Thu Apr 8 17:20:51 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(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(SG_ERROR_OPENDIR, PROC_LOCATION);
146		return NULL;
147		}
148
#	Line 303 | 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
#	Line 315 | Line 320 | sg_process_stats *sg_get_process_stats(int *entries){
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 356 | Line 362 | sg_process_stats *sg_get_process_stats(int *entries){
362		}
363
364		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
359	–	size = sizeof(buflen);
365
366		#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
367		mib[2] = KERN_PROC_ARGS;
368		mib[3] = kp_stats[i].ki_pid;
369		#else
#	Line 390 | 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) {
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;
#	Line 407 | Line 419 | sg_process_stats *sg_get_process_stats(int *entries){
419		p += strlen(p) + 1;
420		} while (p < proctitle + size);
421		free(proctitle);
422	+	proctitle = NULL;
423		/* remove trailing space */
424		proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
425		}
426		else {
427	<	free(proctitle);
427	>	if(proctitle != NULL) {
428	>	free(proctitle);
429	>	proctitle = NULL;
430	>	}
431		proc_state_ptr->proctitle = NULL;
432		}
433		#else
434		free(proc_state_ptr->proctitle);
435	+	proc_state_ptr->proctitle = NULL;
436		if(kvmd != NULL) {
437		args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
438		if(args != NULL) {
#	Line 520 | Line 537 | sg_process_stats *sg_get_process_stats(int *entries){
537		mib[4] = 0;
538
539		if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
540	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
541		return NULL;
542		}
543
#	Line 532 | Line 550 | sg_process_stats *sg_get_process_stats(int *entries){
550		}
551
552		if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
553	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
554		return NULL;
555		}
556		}
#	Line 616 | Line 635 | sg_process_stats *sg_get_process_stats(int *entries){
635		#endif
636
637		#ifdef CYGWIN
638	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
639		return NULL;
640		#endif
641
#	Line 665 | Line 685 | sg_process_count *sg_get_process_count() {
685
686		return &process_stat;
687		}
688	+
689	+	int sg_process_compare_name(const void *va, const void *vb) {
690	+	const sg_process_stats *a = (sg_process_stats *)va;
691	+	const sg_process_stats *b = (sg_process_stats *)vb;
692	+
693	+	return strcmp(a->process_name, b->process_name);
694	+	}
695	+
696	+	int sg_process_compare_pid(const void *va, const void *vb) {
697	+	const sg_process_stats *a = (sg_process_stats *)va;
698	+	const sg_process_stats *b = (sg_process_stats *)vb;
699	+
700	+	if (a->pid < b->pid) {
701	+	return -1;
702	+	} else if (a->pid == b->pid) {
703	+	return 0;
704	+	} else {
705	+	return 1;
706	+	}
707	+	}
708	+
709	+	int sg_process_compare_uid(const void *va, const void *vb) {
710	+	const sg_process_stats *a = (sg_process_stats *)va;
711	+	const sg_process_stats *b = (sg_process_stats *)vb;
712	+
713	+	if (a->uid < b->uid) {
714	+	return -1;
715	+	} else if (a->uid == b->uid) {
716	+	return 0;
717	+	} else {
718	+	return 1;
719	+	}
720	+	}
721	+
722	+	int sg_process_compare_gid(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	+	if (a->gid < b->gid) {
727	+	return -1;
728	+	} else if (a->gid == b->gid) {
729	+	return 0;
730	+	} else {
731	+	return 1;
732	+	}
733	+	}
734	+
735	+	int sg_process_compare_size(const void *va, const void *vb) {
736	+	const sg_process_stats *a = (sg_process_stats *)va;
737	+	const sg_process_stats *b = (sg_process_stats *)vb;
738	+
739	+	if (a->proc_size < b->proc_size) {
740	+	return -1;
741	+	} else if (a->proc_size == b->proc_size) {
742	+	return 0;
743	+	} else {
744	+	return 1;
745	+	}
746	+	}
747	+
748	+	int sg_process_compare_res(const void *va, const void *vb) {
749	+	const sg_process_stats *a = (sg_process_stats *)va;
750	+	const sg_process_stats *b = (sg_process_stats *)vb;
751	+
752	+	if (a->proc_resident < b->proc_resident) {
753	+	return -1;
754	+	} else if (a->proc_resident == b->proc_resident) {
755	+	return 0;
756	+	} else {
757	+	return 1;
758	+	}
759	+	}
760	+
761	+	int sg_process_compare_cpu(const void *va, const void *vb) {
762	+	const sg_process_stats *a = (sg_process_stats *)va;
763	+	const sg_process_stats *b = (sg_process_stats *)vb;
764	+
765	+	if (a->cpu_percent < b->cpu_percent) {
766	+	return -1;
767	+	} else if (a->cpu_percent == b->cpu_percent) {
768	+	return 0;
769	+	} else {
770	+	return 1;
771	+	}
772	+	}
773	+
774	+	int sg_process_compare_time(const void *va, const void *vb) {
775	+	const sg_process_stats *a = (sg_process_stats *)va;
776	+	const sg_process_stats *b = (sg_process_stats *)vb;
777	+
778	+	if (a->time_spent < b->time_spent) {
779	+	return -1;
780	+	} else if (a->time_spent == b->time_spent) {
781	+	return 0;
782	+	} else {
783	+	return 1;
784	+	}
785	+	}
786	+

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