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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 1.63 by tdb, Wed Apr 7 14:53:40 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 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 158 | Line 162 | sg_process_stats *sg_get_process_stats(int *entries){
162		}
163		#ifdef SOLARIS
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 177 | 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->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;
#	Line 301 | 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 313 | 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 354 | Line 362 | sg_process_stats *sg_get_process_stats(int *entries){
362		}
363
364		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
357	–	size = sizeof(buflen);
365
366		#ifdef FREEBSD5
360	–	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
361	–	return NULL;
362	–	}
363	–	#else
364	–	/* FIXME - this value can be too large on some of
365	–	the BSD's, which causes sysctl not to return
366	–	anything. Maybe we need something smaller? */
367	–	mib[1] = KERN_ARGMAX;
368	–
369	–	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
370	–	return NULL;
371	–	}
372	–	#endif
373	–
374	–	proctitle = sg_malloc(buflen);
375	–	if(proctitle == NULL) {
376	–	return NULL;
377	–	}
378	–
379	–	size = buflen;
380	–
381	–	#ifdef FREEBSD5
367		mib[2] = KERN_PROC_ARGS;
368		mib[3] = kp_stats[i].ki_pid;
369		#else
#	Line 388 | 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;
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 405 | 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 518 | 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
#	Line 530 | Line 559 | sg_process_stats *sg_get_process_stats(int *entries){
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 571 | 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 614 | 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 663 | 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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