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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 1.24 by pajs, Sun Mar 28 18:22:58 2004 UTC vs.
Revision 1.75 by ats, Fri Sep 10 15:15:00 2004 UTC

#	Line 1 | Line 1
1		/*
2	<	* i-scream central monitoring system
2	>	* i-scream libstatgrab
3		* http://www.i-scream.org
4		* Copyright (C) 2000-2004 i-scream
5		*
#	Line 26 | Line 26
26		#endif
27
28		#include "statgrab.h"
29	+	#include "tools.h"
30	+	#include "vector.h"
31		#if defined(SOLARIS) || defined(LINUX)
32		#include <stdio.h>
33		#include <stdlib.h>
#	Line 42 | Line 44
44		#endif
45		#ifdef LINUX
46		#include <limits.h>
47	+	#include <unistd.h>
48	+	#include <sys/stat.h>
49	+	#include <fcntl.h>
50		#define PROC_LOCATION "/proc"
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 54 | Line 60
60		#else
61		#include <sys/proc.h>
62		#endif
63	+	#include <string.h>
64	+	#include <paths.h>
65	+	#include <fcntl.h>
66	+	#include <limits.h>
67	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
68	+	#include <kvm.h>
69		#endif
70	+	#include <unistd.h>
71	+	#ifdef NETBSD2
72	+	#include <sys/lwp.h>
73	+	#endif
74	+	#endif
75
76	<	int get_proc_snapshot(proc_state_t **ps){
77	<	proc_state_t *proc_state = NULL;
78	<	proc_state_t *proc_state_ptr;
76	>	static void proc_state_init(sg_process_stats *s) {
77	>	s->process_name = NULL;
78	>	s->proctitle = NULL;
79	>	}
80	>
81	>	static void proc_state_destroy(sg_process_stats *s) {
82	>	free(s->process_name);
83	>	free(s->proctitle);
84	>	}
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);
89		int proc_state_size = 0;
90	+	sg_process_stats *proc_state_ptr;
91	+	#ifdef ALLBSD
92	+	int mib[4];
93	+	size_t size;
94	+	struct kinfo_proc *kp_stats;
95	+	int procs, i;
96	+	char *proctitle;
97	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
98	+	kvm_t *kvmd;
99	+	char **args, **argsp;
100	+	int argslen = 0;
101	+	#else
102	+	long buflen;
103	+	char *p, *proctitletmp;
104	+	#endif
105	+	#ifdef NETBSD2
106	+	int lwps;
107	+	struct kinfo_lwp *kl_stats;
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
118	+	#ifdef LINUX
119	+	char s;
120	+	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
121	+	char ps_name[4096];
122	+	char *ptr;
123	+	VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
124	+	unsigned long stime, utime, starttime;
125	+	int x;
126	+	int fn;
127	+	int len;
128	+	int rc;
129	+	time_t uptime;
130	+	#endif
131
132	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
133	<	return NULL;
134	<	}
132	>	#ifdef LINUX
133	>	if ((f=fopen("/proc/uptime", "r")) == NULL) {
134	>	sg_set_error_with_errno(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	<	while((dir_entry=readdir(proc_dir))!=NULL){
145	<	if(atoi(dir_entry->d_name) == 0) continue;
144	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
145	>	sg_set_error_with_errno(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;
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	<	if((f=fopen(filename, "r"))==NULL){
156	<	/* Open failed.. Process since vanished, or the path was too long.
157	<	* Ah well, move onwards to the next one */
158	<	continue;
159	<	}
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	>	}
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	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
168	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
169	>	return NULL;
170	>	}
171		proc_state_ptr = proc_state+proc_state_size;
172	<
172	>
173	>	#ifdef SOLARIS
174		proc_state_ptr->pid = process_info.pr_pid;
175		proc_state_ptr->parent = process_info.pr_ppid;
176		proc_state_ptr->pgid = process_info.pr_pgid;
#	Line 101 | Line 182 | int get_proc_snapshot(proc_state_t **ps){
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->process_name = strdup(process_info.pr_fname);
186	<	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
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;
189	>	}
190	>	if (sg_update_string(&proc_state_ptr->proctitle,
191	>	process_info.pr_psargs) < 0) {
192	>	return NULL;
193	>	}
194
195	<	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
196	<	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
197	<	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
198	<	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
199	<	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->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	+	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], ')');
233	+	if(ptr !=NULL) *ptr='\0';
234
235	+	if (sg_update_string(&proc_state_ptr->process_name,
236	+	&ps_name[1]) < 0) {
237	+	return NULL;
238	+	}
239	+
240	+	/* cpu */
241	+	proc_state_ptr->cpu_percent = (100.0 * (utime + stime)) / ((uptime * 100.0) - starttime);
242	+
243	+	fclose(f);
244	+
245	+	/* uid / gid */
246	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
247	+	if ((f=fopen(filename, "r")) == NULL) {
248	+	/* Open failed.. Process since vanished, or the path was too long.
249	+	* Ah well, move onwards to the next one */
250	+	continue;
251	+	}
252	+
253	+	if((ptr=sg_f_read_line(f, "Uid:"))==NULL){
254	+	fclose(f);
255	+	continue;
256	+	}
257	+	sscanf(ptr, "Uid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->uid), &(proc_state_ptr->euid));
258	+
259	+	if((ptr=sg_f_read_line(f, "Gid:"))==NULL){
260	+	fclose(f);
261	+	continue;
262	+	}
263	+	sscanf(ptr, "Gid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->gid), &(proc_state_ptr->egid));
264	+
265	+	fclose(f);
266	+
267	+	/* proctitle */
268	+	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
269	+
270	+	if((fn=open(filename, O_RDONLY)) == -1){
271	+	/* Open failed.. Process since vanished, or the path was too long.
272	+	* Ah well, move onwards to the next one */
273	+	continue;
274	+	}
275	+
276	+	#define READ_BLOCK_SIZE 128
277	+	len = 0;
278	+	do {
279	+	if (VECTOR_RESIZE(psargs, len + READ_BLOCK_SIZE) < 0) {
280	+	return NULL;
281	+	}
282	+	rc = read(fn, psargs + len, READ_BLOCK_SIZE);
283	+	if (rc > 0) {
284	+	len += rc;
285	+	}
286	+	} while (rc == READ_BLOCK_SIZE);
287	+	close(fn);
288	+
289	+	if (rc == -1) {
290	+	/* Read failed; move on. */
291	+	continue;
292	+	}
293	+
294	+	/* Turn \0s into spaces within the command line. */
295	+	ptr = psargs;
296	+	for(x = 0; x < len; x++) {
297	+	if (*ptr == '\0') *ptr = ' ';
298	+	ptr++;
299	+	}
300	+
301	+	if (len == 0) {
302	+	/* We want psargs to be NULL. */
303	+	if (VECTOR_RESIZE(psargs, 0) < 0) {
304	+	return NULL;
305	+	}
306	+	} else {
307	+	/* Not empty, so append a \0. */
308	+	if (VECTOR_RESIZE(psargs, len + 1) < 0) {
309	+	return NULL;
310	+	}
311	+	psargs[len] = '\0';
312	+	}
313	+
314	+	if (sg_update_string(&proc_state_ptr->proctitle, psargs) < 0) {
315	+	return NULL;
316	+	}
317	+	#endif
318	+
319		proc_state_size++;
320	+	}
321	+	closedir(proc_dir);
322		#endif
323
324	+	#ifdef ALLBSD
325	+	mib[0] = CTL_KERN;
326	+	mib[1] = KERN_PROC;
327	+	mib[2] = KERN_PROC_ALL;
328
329	<	fclose(f);
330	<	}
331	<	closedir(proc_dir);
332	<	*ps = proc_state;
329	>	if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
330	>	sg_set_error_with_errno(SG_ERROR_SYSCTL,
331	>	"CTL_KERN.KERN_PROC.KERN_PROC_ALL");
332	>	return NULL;
333	>	}
334
335	<	return proc_state_size;
335	>	procs = size / sizeof(struct kinfo_proc);
336	>
337	>	kp_stats = sg_malloc(size);
338	>	if(kp_stats == NULL) {
339	>	return NULL;
340	>	}
341	>	memset(kp_stats, 0, size);
342	>
343	>	if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
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	>	}
349	>
350	>	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
351	>	kvmd = sg_get_kvm2();
352	>	#endif
353	>
354	>	for (i = 0; i < procs; i++) {
355	>	const char *name;
356	>
357	>	#ifdef FREEBSD5
358	>	if (kp_stats[i].ki_stat == 0) {
359	>	#else
360	>	if (kp_stats[i].kp_proc.p_stat == 0) {
361	>	#endif
362	>	/* FreeBSD 5 deliberately overallocates the array that
363	>	* the sysctl returns, so we'll get a few junk
364	>	* processes on the end that we have to ignore. (Search
365	>	* for "overestimate by 5 procs" in
366	>	* src/sys/kern/kern_proc.c for more details.) */
367	>	continue;
368	>	}
369	>
370	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
371	>	return NULL;
372	>	}
373	>	proc_state_ptr = proc_state+proc_state_size;
374	>
375	>	#ifdef FREEBSD5
376	>	name = kp_stats[i].ki_comm;
377	>	#elif defined(DFBSD)
378	>	name = kp_stats[i].kp_thread.td_comm;
379	>	#else
380	>	name = kp_stats[i].kp_proc.p_comm;
381	>	#endif
382	>	if (sg_update_string(&proc_state_ptr->process_name, name) < 0) {
383	>	return NULL;
384	>	}
385	>
386	>	#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
387	>
388	>	#ifdef FREEBSD5
389	>	mib[2] = KERN_PROC_ARGS;
390	>	mib[3] = kp_stats[i].ki_pid;
391	>	#else
392	>	mib[1] = KERN_PROC_ARGS;
393	>	mib[2] = kp_stats[i].kp_proc.p_pid;
394	>	mib[3] = KERN_PROC_ARGV;
395	>	#endif
396	>
397	>	free(proc_state_ptr->proctitle);
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);
449	>	sg_strlcat(proc_state_ptr->proctitle, " ", size+1);
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	>	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) {
470	>	argsp = args;
471	>	while(*argsp != NULL) {
472	>	argslen += strlen(*argsp) + 1;
473	>	argsp++;
474	>	}
475	>	proctitle = sg_malloc(argslen + 1);
476	>	proctitle[0] = '\0';
477	>	if(proctitle == NULL) {
478	>	return NULL;
479	>	}
480	>	while(*args != NULL) {
481	>	sg_strlcat(proctitle, *args, argslen + 1);
482	>	sg_strlcat(proctitle, " ", argslen + 1);
483	>	args++;
484	>	}
485	>	/* remove trailing space */
486	>	proctitle[strlen(proctitle)-1] = '\0';
487	>	proc_state_ptr->proctitle = proctitle;
488	>	}
489	>	else {
490	>	proc_state_ptr->proctitle = NULL;
491	>	}
492	>	}
493	>	else {
494	>	proc_state_ptr->proctitle = NULL;
495	>	}
496	>	#endif
497	>
498	>	#ifdef FREEBSD5
499	>	proc_state_ptr->pid = kp_stats[i].ki_pid;
500	>	proc_state_ptr->parent = kp_stats[i].ki_ppid;
501	>	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
502	>	#else
503	>	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
504	>	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
505	>	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
506	>	#endif
507	>
508	>	#ifdef FREEBSD5
509	>	proc_state_ptr->uid = kp_stats[i].ki_ruid;
510	>	proc_state_ptr->euid = kp_stats[i].ki_uid;
511	>	proc_state_ptr->gid = kp_stats[i].ki_rgid;
512	>	proc_state_ptr->egid = kp_stats[i].ki_svgid;
513	>	#elif defined(DFBSD)
514	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid;
515	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid;
516	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid;
517	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid;
518	>	#else
519	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
520	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
521	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
522	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
523	>	#endif
524	>
525	>	#ifdef FREEBSD5
526	>	proc_state_ptr->proc_size = kp_stats[i].ki_size;
527	>	/* This is in pages */
528	>	proc_state_ptr->proc_resident =
529	>	kp_stats[i].ki_rssize * getpagesize();
530	>	/* This is in microseconds */
531	>	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
532	>	proc_state_ptr->cpu_percent =
533	>	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
534	>	proc_state_ptr->nice = kp_stats[i].ki_nice;
535	>	#else
536	>	proc_state_ptr->proc_size =
537	>	kp_stats[i].kp_eproc.e_vm.vm_map.size;
538	>	/* This is in pages */
539	>	proc_state_ptr->proc_resident =
540	>	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
541	>	#if defined(NETBSD) || defined(OPENBSD)
542	>	proc_state_ptr->time_spent =
543	>	kp_stats[i].kp_proc.p_rtime.tv_sec;
544	>	#elif defined(DFBSD)
545	>	proc_state_ptr->time_spent =
546	>	( kp_stats[i].kp_thread.td_uticks +
547	>	kp_stats[i].kp_thread.td_sticks +
548	>	kp_stats[i].kp_thread.td_iticks ) / 1000000;
549	>	#else
550	>	/* This is in microseconds */
551	>	proc_state_ptr->time_spent =
552	>	kp_stats[i].kp_proc.p_runtime / 1000000;
553	>	#endif
554	>	proc_state_ptr->cpu_percent =
555	>	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
556	>	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
557	>	#endif
558	>
559	>	#ifdef NETBSD2
560	>	{
561	>	size_t size;
562	>	int mib[5];
563	>
564	>	mib[0] = CTL_KERN;
565	>	mib[1] = KERN_LWP;
566	>	mib[2] = kp_stats[i].kp_proc.p_pid;
567	>	mib[3] = sizeof(struct kinfo_lwp);
568	>	mib[4] = 0;
569	>
570	>	if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) {
571	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0");
572	>	return NULL;
573	>	}
574	>
575	>	lwps = size / sizeof(struct kinfo_lwp);
576	>	mib[4] = lwps;
577	>
578	>	kl_stats = sg_malloc(size);
579	>	if(kl_stats == NULL) {
580	>	return NULL;
581	>	}
582	>
583	>	if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) {
584	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize");
585	>	return NULL;
586	>	}
587	>	}
588	>
589	>	switch(kp_stats[i].kp_proc.p_stat) {
590	>	case SIDL:
591	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
592	>	break;
593	>	case SACTIVE:
594	>	{
595	>	int i;
596	>
597	>	for(i = 0; i < lwps; i++) {
598	>	switch(kl_stats[i].l_stat) {
599	>	case LSONPROC:
600	>	case LSRUN:
601	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
602	>	goto end;
603	>	case LSSLEEP:
604	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
605	>	goto end;
606	>	case LSSTOP:
607	>	case LSSUSPENDED:
608	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
609	>	goto end;
610	>	}
611	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
612	>	}
613	>	end: ;
614	>	}
615	>	break;
616	>	case SSTOP:
617	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
618	>	break;
619	>	case SZOMB:
620	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
621	>	break;
622	>	default:
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) {
631	>	#else
632	>	switch (kp_stats[i].kp_proc.p_stat) {
633	>	#endif
634	>	case SIDL:
635	>	case SRUN:
636	>	#ifdef SONPROC
637	>	case SONPROC: /* NetBSD */
638	>	#endif
639	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
640	>	break;
641	>	case SSLEEP:
642	>	#ifdef SWAIT
643	>	case SWAIT: /* FreeBSD 5 */
644	>	#endif
645	>	#ifdef SLOCK
646	>	case SLOCK: /* FreeBSD 5 */
647	>	#endif
648	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
649	>	break;
650	>	case SSTOP:
651	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
652	>	break;
653	>	case SZOMB:
654	>	#ifdef SDEAD
655	>	case SDEAD: /* OpenBSD & NetBSD */
656	>	#endif
657	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
658	>	break;
659	>	default:
660	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
661	>	break;
662	>	}
663	>	#endif
664	>	proc_state_size++;
665	>	}
666	>
667	>	free(kp_stats);
668	>	#endif
669	>
670	>	#ifdef CYGWIN
671	>	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
672	>	return NULL;
673	>	#endif
674	>
675	>	*entries = proc_state_size;
676	>	return proc_state;
677	>	}
678	>
679	>	sg_process_count *sg_get_process_count() {
680	>	static sg_process_count process_stat;
681	>	sg_process_stats *ps;
682	>	int ps_size, x;
683	>
684	>	process_stat.sleeping = 0;
685	>	process_stat.running = 0;
686	>	process_stat.zombie = 0;
687	>	process_stat.stopped = 0;
688	>	process_stat.total = 0;
689	>
690	>	ps = sg_get_process_stats(&ps_size);
691	>	if (ps == NULL) {
692	>	return NULL;
693	>	}
694	>
695	>	for(x = 0; x < ps_size; x++) {
696	>	switch (ps->state) {
697	>	case SG_PROCESS_STATE_RUNNING:
698	>	process_stat.running++;
699	>	break;
700	>	case SG_PROCESS_STATE_SLEEPING:
701	>	process_stat.sleeping++;
702	>	break;
703	>	case SG_PROCESS_STATE_STOPPED:
704	>	process_stat.stopped++;
705	>	break;
706	>	case SG_PROCESS_STATE_ZOMBIE:
707	>	process_stat.zombie++;
708	>	break;
709	>	default:
710	>	/* currently no mapping for SG_PROCESS_STATE_UNKNOWN in
711	>	* sg_process_count */
712	>	break;
713	>	}
714	>	ps++;
715	>	}
716	>
717	>	process_stat.total = ps_size;
718	>
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;
732	>
733	>	if (a->pid < b->pid) {
734	>	return -1;
735	>	} else if (a->pid == b->pid) {
736	>	return 0;
737	>	} else {
738	>	return 1;
739	>	}
740	>	}
741	>
742	>	int sg_process_compare_uid(const void *va, const void *vb) {
743	>	const sg_process_stats *a = (sg_process_stats *)va;
744	>	const sg_process_stats *b = (sg_process_stats *)vb;
745	>
746	>	if (a->uid < b->uid) {
747	>	return -1;
748	>	} else if (a->uid == b->uid) {
749	>	return 0;
750	>	} else {
751	>	return 1;
752	>	}
753	>	}
754	>
755	>	int sg_process_compare_gid(const void *va, const void *vb) {
756	>	const sg_process_stats *a = (sg_process_stats *)va;
757	>	const sg_process_stats *b = (sg_process_stats *)vb;
758	>
759	>	if (a->gid < b->gid) {
760	>	return -1;
761	>	} else if (a->gid == b->gid) {
762	>	return 0;
763	>	} else {
764	>	return 1;
765	>	}
766	>	}
767	>
768	>	int sg_process_compare_size(const void *va, const void *vb) {
769	>	const sg_process_stats *a = (sg_process_stats *)va;
770	>	const sg_process_stats *b = (sg_process_stats *)vb;
771	>
772	>	if (a->proc_size < b->proc_size) {
773	>	return -1;
774	>	} else if (a->proc_size == b->proc_size) {
775	>	return 0;
776	>	} else {
777	>	return 1;
778	>	}
779	>	}
780	>
781	>	int sg_process_compare_res(const void *va, const void *vb) {
782	>	const sg_process_stats *a = (sg_process_stats *)va;
783	>	const sg_process_stats *b = (sg_process_stats *)vb;
784	>
785	>	if (a->proc_resident < b->proc_resident) {
786	>	return -1;
787	>	} else if (a->proc_resident == b->proc_resident) {
788	>	return 0;
789	>	} else {
790	>	return 1;
791	>	}
792	>	}
793	>
794	>	int sg_process_compare_cpu(const void *va, const void *vb) {
795	>	const sg_process_stats *a = (sg_process_stats *)va;
796	>	const sg_process_stats *b = (sg_process_stats *)vb;
797	>
798	>	if (a->cpu_percent < b->cpu_percent) {
799	>	return -1;
800	>	} else if (a->cpu_percent == b->cpu_percent) {
801	>	return 0;
802	>	} else {
803	>	return 1;
804	>	}
805	>	}
806	>
807	>	int sg_process_compare_time(const void *va, const void *vb) {
808	>	const sg_process_stats *a = (sg_process_stats *)va;
809	>	const sg_process_stats *b = (sg_process_stats *)vb;
810	>
811	>	if (a->time_spent < b->time_spent) {
812	>	return -1;
813	>	} else if (a->time_spent == b->time_spent) {
814	>	return 0;
815	>	} else {
816	>	return 1;
817	>	}
818		}
819

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