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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 1.60 by ats, Wed Apr 7 10:27:53 2004 UTC vs.
Revision 1.68 by tdb, Thu Apr 8 13:03:23 2004 UTC

#	Line 84 | Line 84 | static void proc_state_destroy(sg_process_stats *s) {
84
85		sg_process_stats *sg_get_process_stats(int *entries){
86		VECTOR_DECLARE_STATIC(proc_state, sg_process_stats, 64,
87	<	proc_state_init, proc_state_destroy);
87	>	proc_state_init, proc_state_destroy);
88		int proc_state_size = 0;
89		sg_process_stats *proc_state_ptr;
90		#ifdef ALLBSD
#	Line 107 | Line 107 | sg_process_stats *sg_get_process_stats(int *entries){
107		#endif
108		#endif
109		#if defined(SOLARIS) || defined(LINUX)
110	<	DIR *proc_dir;
111	<	struct dirent *dir_entry;
112	<	char filename[MAX_FILE_LENGTH];
113	<	FILE *f;
110	>	DIR *proc_dir;
111	>	struct dirent *dir_entry;
112	>	char filename[MAX_FILE_LENGTH];
113	>	FILE *f;
114		#ifdef SOLARIS
115		psinfo_t process_info;
116		#endif
#	Line 130 | Line 130 | sg_process_stats *sg_get_process_stats(int *entries){
130
131		#ifdef LINUX
132		if ((f=fopen("/proc/uptime", "r")) == NULL) {
133	+	sg_set_error(SG_ERROR_OPEN, "/proc/uptime");
134		return NULL;
135		}
136		if((fscanf(f,"%lu %*d",&uptime)) != 1){
137	+	sg_set_error(SG_ERROR_PARSE, NULL);
138		return NULL;
139		}
140		fclose(f);
141		#endif
142
143	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
144	<	return NULL;
145	<	}
143	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
144	>	sg_set_error(SG_ERROR_OPENDIR, PROC_LOCATION);
145	>	return NULL;
146	>	}
147
148	<	while((dir_entry=readdir(proc_dir))!=NULL){
149	<	if(atoi(dir_entry->d_name) == 0) continue;
148	>	while((dir_entry=readdir(proc_dir))!=NULL){
149	>	if(atoi(dir_entry->d_name) == 0) continue;
150
151		#ifdef SOLARIS
152	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
152	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
153		#endif
154		#ifdef LINUX
155		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
156		#endif
157	<	if((f=fopen(filename, "r"))==NULL){
158	<	/* Open failed.. Process since vanished, or the path was too long.
159	<	* Ah well, move onwards to the next one */
160	<	continue;
161	<	}
157	>	if((f=fopen(filename, "r"))==NULL){
158	>	/* Open failed.. Process since vanished, or the path was too long.
159	>	* Ah well, move onwards to the next one */
160	>	continue;
161	>	}
162		#ifdef SOLARIS
163	<	fread(&process_info, sizeof(psinfo_t), 1, f);
163	>	fread(&process_info, sizeof(psinfo_t), 1, f);
164	>	fclose(f);
165		#endif
166
167		if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
#	Line 177 | Line 181 | sg_process_stats *sg_get_process_stats(int *entries){
181		proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024;
182		proc_state_ptr->time_spent = process_info.pr_time.tv_sec;
183		proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000;
184	+	proc_state_ptr->nice = (int)process_info.pr_lwp.pr_nice - 20;
185		if (sg_update_string(&proc_state_ptr->process_name,
186	<	process_info.pr_fname) < 0) {
186	>	process_info.pr_fname) < 0) {
187		return NULL;
188		}
189		if (sg_update_string(&proc_state_ptr->proctitle,
190	<	process_info.pr_psargs) < 0) {
190	>	process_info.pr_psargs) < 0) {
191		return NULL;
192		}
193
194	<	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
195	<	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
196	<	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
197	<	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
198	<	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
194	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
195	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
196	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
197	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
198	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
199		#endif
200		#ifdef LINUX
201		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 212 | sg_process_stats *sg_get_process_stats(int *entries){
212		if(ptr !=NULL) *ptr='\0';
213
214		if (sg_update_string(&proc_state_ptr->process_name,
215	<	&ps_name[1]) < 0) {
215	>	&ps_name[1]) < 0) {
216		return NULL;
217		}
218
219		/* cpu */
220		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);
221
222	<	fclose(f);
222	>	fclose(f);
223
224	+	/* uid / gid */
225	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
226	+	if ((f=fopen(filename, "r")) == NULL) {
227	+	/* Open failed.. Process since vanished, or the path was too long.
228	+	* Ah well, move onwards to the next one */
229	+	continue;
230	+	}
231	+
232	+	if((ptr=sg_f_read_line(f, "Uid:"))==NULL){
233	+	fclose(f);
234	+	continue;
235	+	}
236	+	sscanf(ptr, "Uid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->uid), &(proc_state_ptr->euid));
237	+
238	+	if((ptr=sg_f_read_line(f, "Gid:"))==NULL){
239	+	fclose(f);
240	+	continue;
241	+	}
242	+	sscanf(ptr, "Gid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->gid), &(proc_state_ptr->egid));
243	+
244	+	fclose(f);
245	+
246		/* proctitle */
247		snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
248
249	<	if((fn=open(filename, O_RDONLY)) == -1){
250	<	/* Open failed.. Process since vanished, or the path was too long.
251	<	* Ah well, move onwards to the next one */
252	<	continue;
253	<	}
249	>	if((fn=open(filename, O_RDONLY)) == -1){
250	>	/* Open failed.. Process since vanished, or the path was too long.
251	>	* Ah well, move onwards to the next one */
252	>	continue;
253	>	}
254
255		#define READ_BLOCK_SIZE 128
256		len = 0;
#	Line 270 | Line 296 | sg_process_stats *sg_get_process_stats(int *entries){
296		#endif
297
298		proc_state_size++;
299	<	}
300	<	closedir(proc_dir);
299	>	}
300	>	closedir(proc_dir);
301		#endif
302
303		#ifdef ALLBSD
#	Line 280 | Line 306 | sg_process_stats *sg_get_process_stats(int *entries){
306		mib[2] = KERN_PROC_ALL;
307
308		if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
309	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
310		return NULL;
311		}
312
313		procs = size / sizeof(struct kinfo_proc);
314
315	<	kp_stats = malloc(size);
315	>	kp_stats = sg_malloc(size);
316		if(kp_stats == NULL) {
317		return NULL;
318		}
319		memset(kp_stats, 0, size);
320
321		if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
322	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL");
323		free(kp_stats);
324		return NULL;
325		}
#	Line 337 | Line 365 | sg_process_stats *sg_get_process_stats(int *entries){
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
#	Line 346 | Line 375 | sg_process_stats *sg_get_process_stats(int *entries){
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 = malloc(buflen);
383	>	proctitle = sg_malloc(buflen);
384		if(proctitle == NULL) {
385		return NULL;
386		}
#	Line 372 | Line 402 | sg_process_stats *sg_get_process_stats(int *entries){
402		proc_state_ptr->proctitle = NULL;
403		}
404		else if(size > 0) {
405	<	proc_state_ptr->proctitle = malloc(size+1);
405	>	proc_state_ptr->proctitle = sg_malloc(size+1);
406		if(proc_state_ptr->proctitle == NULL) {
407		return NULL;
408		}
#	Line 401 | Line 431 | sg_process_stats *sg_get_process_stats(int *entries){
431		argslen += strlen(*argsp) + 1;
432		argsp++;
433		}
434	<	proctitle = malloc(argslen + 1);
434	>	proctitle = sg_malloc(argslen + 1);
435		proctitle[0] = '\0';
436		if(proctitle == NULL) {
437		return NULL;
#	Line 497 | Line 527 | sg_process_stats *sg_get_process_stats(int *entries){
527		mib[4] = 0;
528
529		if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
530	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
531		return NULL;
532		}
533
534		lwps = size / sizeof(struct kinfo_lwp);
535		mib[4] = lwps;
536
537	<	kl_stats = malloc(size);
537	>	kl_stats = sg_malloc(size);
538		if(kl_stats == NULL) {
539		return NULL;
540		}
541
542		if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
543	+	sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
544		return NULL;
545		}
546		}
#	Line 593 | Line 625 | sg_process_stats *sg_get_process_stats(int *entries){
625		#endif
626
627		#ifdef CYGWIN
628	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
629		return NULL;
630		#endif
631
#	Line 641 | Line 674 | sg_process_count *sg_get_process_count() {
674		process_stat.total = ps_size;
675
676		return &process_stat;
677	+	}
678	+
679	+	int sg_process_compare_pid(const void *va, const void *vb) {
680	+	const sg_process_stats *a = (sg_process_stats *)va;
681	+	const sg_process_stats *b = (sg_process_stats *)vb;
682	+
683	+	if (a->pid < b->pid) {
684	+	return -1;
685	+	} else if (a->pid == b->pid) {
686	+	return 0;
687	+	} else {
688	+	return 1;
689	+	}
690	+	}
691	+
692	+	int sg_process_compare_uid(const void *va, const void *vb) {
693	+	const sg_process_stats *a = (sg_process_stats *)va;
694	+	const sg_process_stats *b = (sg_process_stats *)vb;
695	+
696	+	if (a->uid < b->uid) {
697	+	return -1;
698	+	} else if (a->uid == b->uid) {
699	+	return 0;
700	+	} else {
701	+	return 1;
702	+	}
703	+	}
704	+
705	+	int sg_process_compare_gid(const void *va, const void *vb) {
706	+	const sg_process_stats *a = (sg_process_stats *)va;
707	+	const sg_process_stats *b = (sg_process_stats *)vb;
708	+
709	+	if (a->gid < b->gid) {
710	+	return -1;
711	+	} else if (a->gid == b->gid) {
712	+	return 0;
713	+	} else {
714	+	return 1;
715	+	}
716	+	}
717	+
718	+	int sg_process_compare_size(const void *va, const void *vb) {
719	+	const sg_process_stats *a = (sg_process_stats *)va;
720	+	const sg_process_stats *b = (sg_process_stats *)vb;
721	+
722	+	if (a->proc_size < b->proc_size) {
723	+	return -1;
724	+	} else if (a->proc_size == b->proc_size) {
725	+	return 0;
726	+	} else {
727	+	return 1;
728	+	}
729	+	}
730	+
731	+	int sg_process_compare_res(const void *va, const void *vb) {
732	+	const sg_process_stats *a = (sg_process_stats *)va;
733	+	const sg_process_stats *b = (sg_process_stats *)vb;
734	+
735	+	if (a->proc_resident < b->proc_resident) {
736	+	return -1;
737	+	} else if (a->proc_resident == b->proc_resident) {
738	+	return 0;
739	+	} else {
740	+	return 1;
741	+	}
742	+	}
743	+
744	+	int sg_process_compare_cpu(const void *va, const void *vb) {
745	+	const sg_process_stats *a = (sg_process_stats *)va;
746	+	const sg_process_stats *b = (sg_process_stats *)vb;
747	+
748	+	if (a->cpu_percent < b->cpu_percent) {
749	+	return -1;
750	+	} else if (a->cpu_percent == b->cpu_percent) {
751	+	return 0;
752	+	} else {
753	+	return 1;
754	+	}
755	+	}
756	+
757	+	int sg_process_compare_time(const void *va, const void *vb) {
758	+	const sg_process_stats *a = (sg_process_stats *)va;
759	+	const sg_process_stats *b = (sg_process_stats *)vb;
760	+
761	+	if (a->time_spent < b->time_spent) {
762	+	return -1;
763	+	} else if (a->time_spent == b->time_spent) {
764	+	return 0;
765	+	} else {
766	+	return 1;
767	+	}
768	+	}
769	+
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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