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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 1.65 by tdb, Wed Apr 7 21:08:40 2004 UTC vs.
Revision 1.74 by ats, Sun Jul 18 21:30:11 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");
134	>	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/uptime");
135		return NULL;
136		}
137		if((fscanf(f,"%lu %*d",&uptime)) != 1){
#	Line 141 | Line 142 | sg_process_stats *sg_get_process_stats(int *entries){
142		#endif
143
144		if((proc_dir=opendir(PROC_LOCATION))==NULL){
145	<	sg_set_error(SG_ERROR_OPENDIR, PROC_LOCATION);
145	>	sg_set_error_with_errno(SG_ERROR_OPENDIR, PROC_LOCATION);
146		return NULL;
147		}
148
#	Line 306 | 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");
310	>	sg_set_error_with_errno(SG_ERROR_SYSCTL,
311	>	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
312		return NULL;
313		}
314
#	Line 319 | Line 321 | sg_process_stats *sg_get_process_stats(int *entries){
321		memset(kp_stats, 0, size);
322
323		if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
324	<	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
324	>	sg_set_error_with_errno(SG_ERROR_SYSCTL,
325	>	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
326		free(kp_stats);
327		return NULL;
328		}
#	Line 361 | Line 364 | sg_process_stats *sg_get_process_stats(int *entries){
364		}
365
366		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
364	–	size = sizeof(buflen);
367
368		#ifdef FREEBSD5
367	–	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
368	–	sg_set_error(SG_ERROR_SYSCTLBYNAME, "kern.ps_arg_cache_limit");
369	–	return NULL;
370	–	}
371	–	#else
372	–	/* FIXME - this value can be too large on some of
373	–	the BSD's, which causes sysctl not to return
374	–	anything. Maybe we need something smaller? */
375	–	mib[1] = KERN_ARGMAX;
376	–
377	–	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
378	–	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_ARGMAX");
379	–	return NULL;
380	–	}
381	–	#endif
382	–
383	–	proctitle = sg_malloc(buflen);
384	–	if(proctitle == NULL) {
385	–	return NULL;
386	–	}
387	–
388	–	size = buflen;
389	–
390	–	#ifdef FREEBSD5
369		mib[2] = KERN_PROC_ARGS;
370		mib[3] = kp_stats[i].ki_pid;
371		#else
#	Line 397 | Line 375 | sg_process_stats *sg_get_process_stats(int *entries){
375		#endif
376
377		free(proc_state_ptr->proctitle);
378	<	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
379	<	free(proctitle);
380	<	proc_state_ptr->proctitle = NULL;
381	<	}
382	<	else if(size > 0) {
378	>	proc_state_ptr->proctitle = NULL;
379	>
380	>	/* Starting size - we'll double this straight away */
381	>	#define PROCTITLE_START_SIZE 64
382	>	buflen = PROCTITLE_START_SIZE;
383	>	size = buflen;
384	>	proctitle = NULL;
385	>
386	>	do {
387	>	if(size >= buflen) {
388	>	buflen *= 2;
389	>	size = buflen;
390	>	proctitletmp = sg_realloc(proctitle, buflen);
391	>	if(proctitletmp == NULL) {
392	>	free(proctitle);
393	>	proctitle = NULL;
394	>	proc_state_ptr->proctitle = NULL;
395	>	size = 0;
396	>	break;
397	>	}
398	>	proctitle = proctitletmp;
399	>	bzero(proctitle, buflen);
400	>	}
401	>
402	>	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
403	>	free(proctitle);
404	>	proctitle = NULL;
405	>	proc_state_ptr->proctitle = NULL;
406	>	size = 0;
407	>	break;
408	>	}
409	>	} while(size >= buflen);
410	>
411	>	if(size > 0) {
412		proc_state_ptr->proctitle = sg_malloc(size+1);
413		if(proc_state_ptr->proctitle == NULL) {
414		return NULL;
415		}
416		p = proctitle;
417	+	#ifdef OPENBSD
418	+	/* On OpenBSD, this value has the argv pointers (which
419	+	* are terminated by a NULL) at the front, so we have
420	+	* to skip over them to get to the strings. */
421	+	while (*(char ***)p != NULL) {
422	+	p += sizeof(char **);
423	+	}
424	+	p += sizeof(char **);
425	+	#endif
426		proc_state_ptr->proctitle[0] = '\0';
427		do {
428		sg_strlcat(proc_state_ptr->proctitle, p, size+1);
#	Line 414 | Line 430 | sg_process_stats *sg_get_process_stats(int *entries){
430		p += strlen(p) + 1;
431		} while (p < proctitle + size);
432		free(proctitle);
433	+	proctitle = NULL;
434		/* remove trailing space */
435		proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
436		}
437		else {
438	<	free(proctitle);
438	>	if(proctitle != NULL) {
439	>	free(proctitle);
440	>	proctitle = NULL;
441	>	}
442		proc_state_ptr->proctitle = NULL;
443		}
444		#else
445		free(proc_state_ptr->proctitle);
446	+	proc_state_ptr->proctitle = NULL;
447		if(kvmd != NULL) {
448		args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
449		if(args != NULL) {
#	Line 527 | Line 548 | sg_process_stats *sg_get_process_stats(int *entries){
548		mib[4] = 0;
549
550		if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
551	<	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
551	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
552		return NULL;
553		}
554
#	Line 540 | Line 561 | sg_process_stats *sg_get_process_stats(int *entries){
561		}
562
563		if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
564	<	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
564	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
565		return NULL;
566		}
567		}
#	Line 582 | Line 603 | sg_process_stats *sg_get_process_stats(int *entries){
603		proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
604		break;
605		}
606	+
607	+	free(kl_stats);
608		#else
609		#ifdef FREEBSD5
610		switch (kp_stats[i].ki_stat) {
#	Line 675 | Line 698 | sg_process_count *sg_get_process_count() {
698
699		return &process_stat;
700		}
701	+
702	+	int sg_process_compare_name(const void *va, const void *vb) {
703	+	const sg_process_stats *a = (sg_process_stats *)va;
704	+	const sg_process_stats *b = (sg_process_stats *)vb;
705	+
706	+	return strcmp(a->process_name, b->process_name);
707	+	}
708	+
709	+	int sg_process_compare_pid(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->pid < b->pid) {
714	+	return -1;
715	+	} else if (a->pid == b->pid) {
716	+	return 0;
717	+	} else {
718	+	return 1;
719	+	}
720	+	}
721	+
722	+	int sg_process_compare_uid(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->uid < b->uid) {
727	+	return -1;
728	+	} else if (a->uid == b->uid) {
729	+	return 0;
730	+	} else {
731	+	return 1;
732	+	}
733	+	}
734	+
735	+	int sg_process_compare_gid(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->gid < b->gid) {
740	+	return -1;
741	+	} else if (a->gid == b->gid) {
742	+	return 0;
743	+	} else {
744	+	return 1;
745	+	}
746	+	}
747	+
748	+	int sg_process_compare_size(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_size < b->proc_size) {
753	+	return -1;
754	+	} else if (a->proc_size == b->proc_size) {
755	+	return 0;
756	+	} else {
757	+	return 1;
758	+	}
759	+	}
760	+
761	+	int sg_process_compare_res(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->proc_resident < b->proc_resident) {
766	+	return -1;
767	+	} else if (a->proc_resident == b->proc_resident) {
768	+	return 0;
769	+	} else {
770	+	return 1;
771	+	}
772	+	}
773	+
774	+	int sg_process_compare_cpu(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->cpu_percent < b->cpu_percent) {
779	+	return -1;
780	+	} else if (a->cpu_percent == b->cpu_percent) {
781	+	return 0;
782	+	} else {
783	+	return 1;
784	+	}
785	+	}
786	+
787	+	int sg_process_compare_time(const void *va, const void *vb) {
788	+	const sg_process_stats *a = (sg_process_stats *)va;
789	+	const sg_process_stats *b = (sg_process_stats *)vb;
790	+
791	+	if (a->time_spent < b->time_spent) {
792	+	return -1;
793	+	} else if (a->time_spent == b->time_spent) {
794	+	return 0;
795	+	} else {
796	+	return 1;
797	+	}
798	+	}
799	+

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