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root/i-scream/projects/libstatgrab/src/libstatgrab/process_stats.c
Revision: 1.75
Committed: Fri Sep 10 15:15:00 2004 UTC (19 years, 8 months ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.74: +31 -11 lines
Log Message:
Fix some nasty repeated if()s (reported by Fred Barnes).

File Contents

# Content
1 /*
2 * i-scream libstatgrab
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2004 i-scream
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 * 02111-1307 USA
20 *
21 * $Id: process_stats.c,v 1.74 2004/07/18 21:30:11 ats Exp $
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
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>
34 #include <sys/types.h>
35 #include <dirent.h>
36 #include <string.h>
37 #endif
38
39 #ifdef SOLARIS
40 #include <procfs.h>
41 #include <limits.h>
42 #define PROC_LOCATION "/proc"
43 #define MAX_FILE_LENGTH PATH_MAX
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>
58 #if defined(FREEBSD) || defined(DFBSD)
59 #include <sys/user.h>
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 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;
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 #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 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);
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 }
163 #ifdef SOLARIS
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) {
169 return NULL;
170 }
171 proc_state_ptr = proc_state+proc_state_size;
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;
177 proc_state_ptr->uid = process_info.pr_uid;
178 proc_state_ptr->euid = process_info.pr_euid;
179 proc_state_ptr->gid = process_info.pr_gid;
180 proc_state_ptr->egid = process_info.pr_egid;
181 proc_state_ptr->proc_size = (process_info.pr_size) * 1024;
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) {
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 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 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 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