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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 1.68 by tdb, Thu Apr 8 13:03:23 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 361 | Line 362 | sg_process_stats *sg_get_process_stats(int *entries){
362		}
363
364		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
364	–	size = sizeof(buflen);
365
366		#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
367		mib[2] = KERN_PROC_ARGS;
368		mib[3] = kp_stats[i].ki_pid;
369		#else
#	Line 397 | 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 414 | 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 676 | Line 686 | sg_process_count *sg_get_process_count() {
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;
#	Line 767 | Line 784 | int sg_process_compare_time(const void *va, const void
784		}
785		}
786
770	–	void sg_process_sort(sg_process_stats *ps, int num_ps, sg_process_sort_method sm){
771	–	int (*sortby_ptr)(const void *a, const void *b);
772	–
773	–	switch(sm){
774	–	case SG_PS_PID:
775	–	sortby_ptr = sg_process_compare_pid;
776	–	break;
777	–	case SG_PS_UID:
778	–	sortby_ptr = sg_process_compare_uid;
779	–	break;
780	–	case SG_PS_GID:
781	–	sortby_ptr = sg_process_compare_gid;
782	–	break;
783	–	case SG_PS_SIZE:
784	–	sortby_ptr = sg_process_compare_size;
785	–	break;
786	–	case SG_PS_RES:
787	–	sortby_ptr = sg_process_compare_res;
788	–	break;
789	–	case SG_PS_CPU:
790	–	sortby_ptr = sg_process_compare_cpu;
791	–	break;
792	–	case SG_PS_TIME:
793	–	sortby_ptr = sg_process_compare_time;
794	–	break;
795	–	}
796	–
797	–	qsort(ps, num_ps, sizeof(*ps), sortby_ptr);
798	–
799	–	return;
800	–	}

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