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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 1.61 by ats, Wed Apr 7 10:33:50 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 84 | Line 85 | static void proc_state_destroy(sg_process_stats *s) {
85
86		sg_process_stats *sg_get_process_stats(int *entries){
87		VECTOR_DECLARE_STATIC(proc_state, sg_process_stats, 64,
88	<	proc_state_init, proc_state_destroy);
88	>	proc_state_init, proc_state_destroy);
89		int proc_state_size = 0;
90		sg_process_stats *proc_state_ptr;
91		#ifdef ALLBSD
#	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 107 | Line 108 | sg_process_stats *sg_get_process_stats(int *entries){
108		#endif
109		#endif
110		#if defined(SOLARIS) || defined(LINUX)
111	<	DIR *proc_dir;
112	<	struct dirent *dir_entry;
113	<	char filename[MAX_FILE_LENGTH];
114	<	FILE *f;
111	>	DIR *proc_dir;
112	>	struct dirent *dir_entry;
113	>	char filename[MAX_FILE_LENGTH];
114	>	FILE *f;
115		#ifdef SOLARIS
116		psinfo_t process_info;
117		#endif
#	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	<	return NULL;
146	<	}
144	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
145	>	sg_set_error(SG_ERROR_OPENDIR, PROC_LOCATION);
146	>	return NULL;
147	>	}
148
149	<	while((dir_entry=readdir(proc_dir))!=NULL){
150	<	if(atoi(dir_entry->d_name) == 0) continue;
149	>	while((dir_entry=readdir(proc_dir))!=NULL){
150	>	if(atoi(dir_entry->d_name) == 0) continue;
151
152		#ifdef SOLARIS
153	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
153	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
154		#endif
155		#ifdef LINUX
156		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
157		#endif
158	<	if((f=fopen(filename, "r"))==NULL){
159	<	/* Open failed.. Process since vanished, or the path was too long.
160	<	* Ah well, move onwards to the next one */
161	<	continue;
162	<	}
158	>	if((f=fopen(filename, "r"))==NULL){
159	>	/* Open failed.. Process since vanished, or the path was too long.
160	>	* Ah well, move onwards to the next one */
161	>	continue;
162	>	}
163		#ifdef SOLARIS
164	<	fread(&process_info, sizeof(psinfo_t), 1, f);
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) {
187	>	process_info.pr_fname) < 0) {
188		return NULL;
189		}
190		if (sg_update_string(&proc_state_ptr->proctitle,
191	<	process_info.pr_psargs) < 0) {
191	>	process_info.pr_psargs) < 0) {
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	>	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;
200		#endif
201		#ifdef LINUX
202		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));
#	Line 207 | Line 213 | sg_process_stats *sg_get_process_stats(int *entries){
213		if(ptr !=NULL) *ptr='\0';
214
215		if (sg_update_string(&proc_state_ptr->process_name,
216	<	&ps_name[1]) < 0) {
216	>	&ps_name[1]) < 0) {
217		return NULL;
218		}
219
220		/* cpu */
221		proc_state_ptr->cpu_percent = (100.0 * (utime + stime)) / ((uptime * 100.0) - starttime);
216	–	printf("%s  ut: %lu st: %lu up: %lu start: %lu\n", proc_state_ptr->process_name, utime, stime, uptime , starttime);
222
223	<	fclose(f);
223	>	fclose(f);
224
225	+	/* uid / gid */
226	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
227	+	if ((f=fopen(filename, "r")) == NULL) {
228	+	/* Open failed.. Process since vanished, or the path was too long.
229	+	* Ah well, move onwards to the next one */
230	+	continue;
231	+	}
232	+
233	+	if((ptr=sg_f_read_line(f, "Uid:"))==NULL){
234	+	fclose(f);
235	+	continue;
236	+	}
237	+	sscanf(ptr, "Uid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->uid), &(proc_state_ptr->euid));
238	+
239	+	if((ptr=sg_f_read_line(f, "Gid:"))==NULL){
240	+	fclose(f);
241	+	continue;
242	+	}
243	+	sscanf(ptr, "Gid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->gid), &(proc_state_ptr->egid));
244	+
245	+	fclose(f);
246	+
247		/* proctitle */
248		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
249
250	<	if((fn=open(filename, O_RDONLY)) == -1){
251	<	/* Open failed.. Process since vanished, or the path was too long.
252	<	* Ah well, move onwards to the next one */
253	<	continue;
254	<	}
250	>	if((fn=open(filename, O_RDONLY)) == -1){
251	>	/* Open failed.. Process since vanished, or the path was too long.
252	>	* Ah well, move onwards to the next one */
253	>	continue;
254	>	}
255
256		#define READ_BLOCK_SIZE 128
257		len = 0;
#	Line 270 | Line 297 | sg_process_stats *sg_get_process_stats(int *entries){
297		#endif
298
299		proc_state_size++;
300	<	}
301	<	closedir(proc_dir);
300	>	}
301	>	closedir(proc_dir);
302		#endif
303
304		#ifdef ALLBSD
#	Line 280 | 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 292 | 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 333 | Line 362 | sg_process_stats *sg_get_process_stats(int *entries){
362		}
363
364		#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
336	–	size = sizeof(buflen);
365
366		#ifdef FREEBSD5
339	–	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
340	–	return NULL;
341	–	}
342	–	#else
343	–	/* FIXME - this value can be too large on some of
344	–	the BSD's, which causes sysctl not to return
345	–	anything. Maybe we need something smaller? */
346	–	mib[1] = KERN_ARGMAX;
347	–
348	–	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
349	–	return NULL;
350	–	}
351	–	#endif
352	–
353	–	proctitle = sg_malloc(buflen);
354	–	if(proctitle == NULL) {
355	–	return NULL;
356	–	}
357	–
358	–	size = buflen;
359	–
360	–	#ifdef FREEBSD5
367		mib[2] = KERN_PROC_ARGS;
368		mib[3] = kp_stats[i].ki_pid;
369		#else
#	Line 367 | 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 384 | 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 497 | 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 509 | 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 593 | 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 642 | 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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