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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 1.67 by pajs, Thu Apr 8 12:40:30 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(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 191 | 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 306 | 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(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
330	>	sg_set_error_with_errno(SG_ERROR_SYSCTL,
331	>	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
332		return NULL;
333		}
334
#	Line 319 | 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(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
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 361 | Line 384 | sg_process_stats *sg_get_process_stats(int *entries){
384		}
385
386		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
364	–	size = sizeof(buflen);
387
388		#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
389		mib[2] = KERN_PROC_ARGS;
390		mib[3] = kp_stats[i].ki_pid;
391		#else
#	Line 397 | 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 414 | 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 527 | 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(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
571	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
572		return NULL;
573		}
574
#	Line 540 | 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(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
584	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
585		return NULL;
586		}
587		}
#	Line 582 | 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 676 | Line 719 | sg_process_count *sg_get_process_count() {
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;
#	Line 767 | Line 817 | int sg_process_compare_time(const void *va, const void
817		}
818		}
819
770	–	void sg_process_sort(sg_process_stats *ps, int num_ps, sg_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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