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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 1.69 by ats, Thu Apr 8 13:16:05 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
#	Line 54 | Line 59
59		#else
60		#include <sys/proc.h>
61		#endif
62	+	#include <string.h>
63	+	#include <paths.h>
64	+	#include <fcntl.h>
65	+	#include <limits.h>
66	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
67	+	#include <kvm.h>
68		#endif
69	+	#include <unistd.h>
70	+	#ifdef NETBSD2
71	+	#include <sys/lwp.h>
72	+	#endif
73	+	#endif
74
75	<	int get_proc_snapshot(proc_state_t **ps){
76	<	proc_state_t *proc_state = NULL;
77	<	proc_state_t *proc_state_ptr;
75	>	static void proc_state_init(sg_process_stats *s) {
76	>	s->process_name = NULL;
77	>	s->proctitle = NULL;
78	>	}
79	>
80	>	static void proc_state_destroy(sg_process_stats *s) {
81	>	free(s->process_name);
82	>	free(s->proctitle);
83	>	}
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);
88		int proc_state_size = 0;
89	+	sg_process_stats *proc_state_ptr;
90	+	#ifdef ALLBSD
91	+	int mib[4];
92	+	size_t size;
93	+	struct kinfo_proc *kp_stats;
94	+	int procs, i;
95	+	char *proctitle;
96	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
97	+	kvm_t *kvmd;
98	+	char **args, **argsp;
99	+	int argslen = 0;
100	+	#else
101	+	long buflen;
102	+	char *p;
103	+	#endif
104	+	#ifdef NETBSD2
105	+	int lwps;
106	+	struct kinfo_lwp *kl_stats;
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
117	+	#ifdef LINUX
118	+	char s;
119	+	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
120	+	char ps_name[4096];
121	+	char *ptr;
122	+	VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL);
123	+	unsigned long stime, utime, starttime;
124	+	int x;
125	+	int fn;
126	+	int len;
127	+	int rc;
128	+	time_t uptime;
129	+	#endif
130
131	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
132	<	return NULL;
133	<	}
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	<	while((dir_entry=readdir(proc_dir))!=NULL){
144	<	if(atoi(dir_entry->d_name) == 0) continue;
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;
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	<	if((f=fopen(filename, "r"))==NULL){
155	<	/* Open failed.. Process since vanished, or the path was too long.
156	<	* Ah well, move onwards to the next one */
157	<	continue;
158	<	}
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	>	}
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	<	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
167	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
168	>	return NULL;
169	>	}
170		proc_state_ptr = proc_state+proc_state_size;
171	<
171	>
172	>	#ifdef SOLARIS
173		proc_state_ptr->pid = process_info.pr_pid;
174		proc_state_ptr->parent = process_info.pr_ppid;
175		proc_state_ptr->pgid = process_info.pr_pgid;
#	Line 101 | Line 181 | int get_proc_snapshot(proc_state_t **ps){
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->process_name = strdup(process_info.pr_fname);
185	<	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
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) {
187	>	return NULL;
188	>	}
189	>	if (sg_update_string(&proc_state_ptr->proctitle,
190	>	process_info.pr_psargs) < 0) {
191	>	return NULL;
192	>	}
193
194	<	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
195	<	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
196	<	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
197	<	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
198	<	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->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));
202	+	/* +3 becuase man page says "Resident  Set Size: number of pages the process has in real memory, minus 3 for administrative purposes." */
203	+	proc_state_ptr->proc_resident = (proc_state_ptr->proc_resident + 3) * getpagesize();
204	+	if(s == 'S') proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
205	+	if(s == 'R') proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
206	+	if(s == 'Z') proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
207	+	if(s == 'T') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
208	+	if(s == 'D') proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
209	+
210	+	/* pa_name[0] should = '(' */
211	+	ptr = strchr(&ps_name[1], ')');
212	+	if(ptr !=NULL) *ptr='\0';
213
214	+	if (sg_update_string(&proc_state_ptr->process_name,
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);
221	+
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	+	}
254	+
255	+	#define READ_BLOCK_SIZE 128
256	+	len = 0;
257	+	do {
258	+	if (VECTOR_RESIZE(psargs, len + READ_BLOCK_SIZE) < 0) {
259	+	return NULL;
260	+	}
261	+	rc = read(fn, psargs + len, READ_BLOCK_SIZE);
262	+	if (rc > 0) {
263	+	len += rc;
264	+	}
265	+	} while (rc == READ_BLOCK_SIZE);
266	+	close(fn);
267	+
268	+	if (rc == -1) {
269	+	/* Read failed; move on. */
270	+	continue;
271	+	}
272	+
273	+	/* Turn \0s into spaces within the command line. */
274	+	ptr = psargs;
275	+	for(x = 0; x < len; x++) {
276	+	if (*ptr == '\0') *ptr = ' ';
277	+	ptr++;
278	+	}
279	+
280	+	if (len == 0) {
281	+	/* We want psargs to be NULL. */
282	+	if (VECTOR_RESIZE(psargs, 0) < 0) {
283	+	return NULL;
284	+	}
285	+	} else {
286	+	/* Not empty, so append a \0. */
287	+	if (VECTOR_RESIZE(psargs, len + 1) < 0) {
288	+	return NULL;
289	+	}
290	+	psargs[len] = '\0';
291	+	}
292	+
293	+	if (sg_update_string(&proc_state_ptr->proctitle, psargs) < 0) {
294	+	return NULL;
295	+	}
296	+	#endif
297	+
298		proc_state_size++;
299	+	}
300	+	closedir(proc_dir);
301		#endif
302
303	+	#ifdef ALLBSD
304	+	mib[0] = CTL_KERN;
305	+	mib[1] = KERN_PROC;
306	+	mib[2] = KERN_PROC_ALL;
307
308	<	fclose(f);
309	<	}
310	<	closedir(proc_dir);
311	<	*ps = proc_state;
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	<	return proc_state_size;
313	>	procs = size / sizeof(struct kinfo_proc);
314	>
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	>	}
326	>
327	>	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
328	>	kvmd = sg_get_kvm2();
329	>	#endif
330	>
331	>	for (i = 0; i < procs; i++) {
332	>	const char *name;
333	>
334	>	#ifdef FREEBSD5
335	>	if (kp_stats[i].ki_stat == 0) {
336	>	#else
337	>	if (kp_stats[i].kp_proc.p_stat == 0) {
338	>	#endif
339	>	/* FreeBSD 5 deliberately overallocates the array that
340	>	* the sysctl returns, so we'll get a few junk
341	>	* processes on the end that we have to ignore. (Search
342	>	* for "overestimate by 5 procs" in
343	>	* src/sys/kern/kern_proc.c for more details.) */
344	>	continue;
345	>	}
346	>
347	>	if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) {
348	>	return NULL;
349	>	}
350	>	proc_state_ptr = proc_state+proc_state_size;
351	>
352	>	#ifdef FREEBSD5
353	>	name = kp_stats[i].ki_comm;
354	>	#elif defined(DFBSD)
355	>	name = kp_stats[i].kp_thread.td_comm;
356	>	#else
357	>	name = kp_stats[i].kp_proc.p_comm;
358	>	#endif
359	>	if (sg_update_string(&proc_state_ptr->process_name, name) < 0) {
360	>	return NULL;
361	>	}
362	>
363	>	#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
364	>	size = sizeof(buflen);
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
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
391	>	mib[2] = KERN_PROC_ARGS;
392	>	mib[3] = kp_stats[i].ki_pid;
393	>	#else
394	>	mib[1] = KERN_PROC_ARGS;
395	>	mib[2] = kp_stats[i].kp_proc.p_pid;
396	>	mib[3] = KERN_PROC_ARGV;
397	>	#endif
398	>
399	>	free(proc_state_ptr->proctitle);
400	>	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
401	>	free(proctitle);
402	>	proc_state_ptr->proctitle = NULL;
403	>	}
404	>	else if(size > 0) {
405	>	proc_state_ptr->proctitle = sg_malloc(size+1);
406	>	if(proc_state_ptr->proctitle == NULL) {
407	>	return NULL;
408	>	}
409	>	p = proctitle;
410	>	proc_state_ptr->proctitle[0] = '\0';
411	>	do {
412	>	sg_strlcat(proc_state_ptr->proctitle, p, size+1);
413	>	sg_strlcat(proc_state_ptr->proctitle, " ", size+1);
414	>	p += strlen(p) + 1;
415	>	} while (p < proctitle + size);
416	>	free(proctitle);
417	>	/* remove trailing space */
418	>	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
419	>	}
420	>	else {
421	>	free(proctitle);
422	>	proc_state_ptr->proctitle = NULL;
423	>	}
424	>	#else
425	>	free(proc_state_ptr->proctitle);
426	>	if(kvmd != NULL) {
427	>	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
428	>	if(args != NULL) {
429	>	argsp = args;
430	>	while(*argsp != NULL) {
431	>	argslen += strlen(*argsp) + 1;
432	>	argsp++;
433	>	}
434	>	proctitle = sg_malloc(argslen + 1);
435	>	proctitle[0] = '\0';
436	>	if(proctitle == NULL) {
437	>	return NULL;
438	>	}
439	>	while(*args != NULL) {
440	>	sg_strlcat(proctitle, *args, argslen + 1);
441	>	sg_strlcat(proctitle, " ", argslen + 1);
442	>	args++;
443	>	}
444	>	/* remove trailing space */
445	>	proctitle[strlen(proctitle)-1] = '\0';
446	>	proc_state_ptr->proctitle = proctitle;
447	>	}
448	>	else {
449	>	proc_state_ptr->proctitle = NULL;
450	>	}
451	>	}
452	>	else {
453	>	proc_state_ptr->proctitle = NULL;
454	>	}
455	>	#endif
456	>
457	>	#ifdef FREEBSD5
458	>	proc_state_ptr->pid = kp_stats[i].ki_pid;
459	>	proc_state_ptr->parent = kp_stats[i].ki_ppid;
460	>	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
461	>	#else
462	>	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
463	>	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
464	>	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
465	>	#endif
466	>
467	>	#ifdef FREEBSD5
468	>	proc_state_ptr->uid = kp_stats[i].ki_ruid;
469	>	proc_state_ptr->euid = kp_stats[i].ki_uid;
470	>	proc_state_ptr->gid = kp_stats[i].ki_rgid;
471	>	proc_state_ptr->egid = kp_stats[i].ki_svgid;
472	>	#elif defined(DFBSD)
473	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid;
474	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid;
475	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid;
476	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid;
477	>	#else
478	>	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
479	>	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
480	>	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
481	>	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
482	>	#endif
483	>
484	>	#ifdef FREEBSD5
485	>	proc_state_ptr->proc_size = kp_stats[i].ki_size;
486	>	/* This is in pages */
487	>	proc_state_ptr->proc_resident =
488	>	kp_stats[i].ki_rssize * getpagesize();
489	>	/* This is in microseconds */
490	>	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
491	>	proc_state_ptr->cpu_percent =
492	>	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
493	>	proc_state_ptr->nice = kp_stats[i].ki_nice;
494	>	#else
495	>	proc_state_ptr->proc_size =
496	>	kp_stats[i].kp_eproc.e_vm.vm_map.size;
497	>	/* This is in pages */
498	>	proc_state_ptr->proc_resident =
499	>	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
500	>	#if defined(NETBSD) || defined(OPENBSD)
501	>	proc_state_ptr->time_spent =
502	>	kp_stats[i].kp_proc.p_rtime.tv_sec;
503	>	#elif defined(DFBSD)
504	>	proc_state_ptr->time_spent =
505	>	( kp_stats[i].kp_thread.td_uticks +
506	>	kp_stats[i].kp_thread.td_sticks +
507	>	kp_stats[i].kp_thread.td_iticks ) / 1000000;
508	>	#else
509	>	/* This is in microseconds */
510	>	proc_state_ptr->time_spent =
511	>	kp_stats[i].kp_proc.p_runtime / 1000000;
512	>	#endif
513	>	proc_state_ptr->cpu_percent =
514	>	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
515	>	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
516	>	#endif
517	>
518	>	#ifdef NETBSD2
519	>	{
520	>	size_t size;
521	>	int mib[5];
522	>
523	>	mib[0] = CTL_KERN;
524	>	mib[1] = KERN_LWP;
525	>	mib[2] = kp_stats[i].kp_proc.p_pid;
526	>	mib[3] = sizeof(struct kinfo_lwp);
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 = 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	>	}
547	>
548	>	switch(kp_stats[i].kp_proc.p_stat) {
549	>	case SIDL:
550	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
551	>	break;
552	>	case SACTIVE:
553	>	{
554	>	int i;
555	>
556	>	for(i = 0; i < lwps; i++) {
557	>	switch(kl_stats[i].l_stat) {
558	>	case LSONPROC:
559	>	case LSRUN:
560	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
561	>	goto end;
562	>	case LSSLEEP:
563	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
564	>	goto end;
565	>	case LSSTOP:
566	>	case LSSUSPENDED:
567	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
568	>	goto end;
569	>	}
570	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
571	>	}
572	>	end: ;
573	>	}
574	>	break;
575	>	case SSTOP:
576	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
577	>	break;
578	>	case SZOMB:
579	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
580	>	break;
581	>	default:
582	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
583	>	break;
584	>	}
585	>	#else
586	>	#ifdef FREEBSD5
587	>	switch (kp_stats[i].ki_stat) {
588	>	#else
589	>	switch (kp_stats[i].kp_proc.p_stat) {
590	>	#endif
591	>	case SIDL:
592	>	case SRUN:
593	>	#ifdef SONPROC
594	>	case SONPROC: /* NetBSD */
595	>	#endif
596	>	proc_state_ptr->state = SG_PROCESS_STATE_RUNNING;
597	>	break;
598	>	case SSLEEP:
599	>	#ifdef SWAIT
600	>	case SWAIT: /* FreeBSD 5 */
601	>	#endif
602	>	#ifdef SLOCK
603	>	case SLOCK: /* FreeBSD 5 */
604	>	#endif
605	>	proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING;
606	>	break;
607	>	case SSTOP:
608	>	proc_state_ptr->state = SG_PROCESS_STATE_STOPPED;
609	>	break;
610	>	case SZOMB:
611	>	#ifdef SDEAD
612	>	case SDEAD: /* OpenBSD & NetBSD */
613	>	#endif
614	>	proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE;
615	>	break;
616	>	default:
617	>	proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN;
618	>	break;
619	>	}
620	>	#endif
621	>	proc_state_size++;
622	>	}
623	>
624	>	free(kp_stats);
625	>	#endif
626	>
627	>	#ifdef CYGWIN
628	>	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
629	>	return NULL;
630	>	#endif
631	>
632	>	*entries = proc_state_size;
633	>	return proc_state;
634	>	}
635	>
636	>	sg_process_count *sg_get_process_count() {
637	>	static sg_process_count process_stat;
638	>	sg_process_stats *ps;
639	>	int ps_size, x;
640	>
641	>	process_stat.sleeping = 0;
642	>	process_stat.running = 0;
643	>	process_stat.zombie = 0;
644	>	process_stat.stopped = 0;
645	>	process_stat.total = 0;
646	>
647	>	ps = sg_get_process_stats(&ps_size);
648	>	if (ps == NULL) {
649	>	return NULL;
650	>	}
651	>
652	>	for(x = 0; x < ps_size; x++) {
653	>	switch (ps->state) {
654	>	case SG_PROCESS_STATE_RUNNING:
655	>	process_stat.running++;
656	>	break;
657	>	case SG_PROCESS_STATE_SLEEPING:
658	>	process_stat.sleeping++;
659	>	break;
660	>	case SG_PROCESS_STATE_STOPPED:
661	>	process_stat.stopped++;
662	>	break;
663	>	case SG_PROCESS_STATE_ZOMBIE:
664	>	process_stat.zombie++;
665	>	break;
666	>	default:
667	>	/* currently no mapping for SG_PROCESS_STATE_UNKNOWN in
668	>	* sg_process_count */
669	>	break;
670	>	}
671	>	ps++;
672	>	}
673	>
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

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