b02e869d37bdce009576370c7c80c1f9fbbc0d93
1 /**
2 * collectd - src/processes.c
3 * Copyright (C) 2005 Lyonel Vincent
4 * Copyright (C) 2006 Florian Forster (Mach code)
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 * Authors:
21 * Lyonel Vincent <lyonel at ezix.org>
22 * Florian octo Forster <octo at verplant.org>
23 **/
25 #include "collectd.h"
26 #include "common.h"
27 #include "plugin.h"
28 #include "utils_debug.h"
29 #include "configfile.h"
31 /* Include header files for the mach system, if they exist.. */
32 #if HAVE_THREAD_INFO
33 # if HAVE_MACH_MACH_INIT_H
34 # include <mach/mach_init.h>
35 # endif
36 # if HAVE_MACH_HOST_PRIV_H
37 # include <mach/host_priv.h>
38 # endif
39 # if HAVE_MACH_MACH_ERROR_H
40 # include <mach/mach_error.h>
41 # endif
42 # if HAVE_MACH_MACH_HOST_H
43 # include <mach/mach_host.h>
44 # endif
45 # if HAVE_MACH_MACH_PORT_H
46 # include <mach/mach_port.h>
47 # endif
48 # if HAVE_MACH_MACH_TYPES_H
49 # include <mach/mach_types.h>
50 # endif
51 # if HAVE_MACH_MESSAGE_H
52 # include <mach/message.h>
53 # endif
54 # if HAVE_MACH_PROCESSOR_SET_H
55 # include <mach/processor_set.h>
56 # endif
57 # if HAVE_MACH_TASK_H
58 # include <mach/task.h>
59 # endif
60 # if HAVE_MACH_THREAD_ACT_H
61 # include <mach/thread_act.h>
62 # endif
63 # if HAVE_MACH_VM_REGION_H
64 # include <mach/vm_region.h>
65 # endif
66 # if HAVE_MACH_VM_MAP_H
67 # include <mach/vm_map.h>
68 # endif
69 # if HAVE_MACH_VM_PROT_H
70 # include <mach/vm_prot.h>
71 # endif
72 /* #endif HAVE_THREAD_INFO */
74 #elif KERNEL_LINUX
75 # if HAVE_LINUX_CONFIG_H
76 # include <linux/config.h>
77 # endif
78 # ifndef CONFIG_HZ
79 # define CONFIG_HZ 100
80 # endif
81 #endif /* KERNEL_LINUX */
83 #define MODULE_NAME "processes"
85 #if HAVE_THREAD_INFO || KERNEL_LINUX
86 # define PROCESSES_HAVE_READ 1
87 #else
88 # define PROCESSES_HAVE_READ 0
89 #endif
91 #define BUFSIZE 256
93 static char *processes_file = "processes.rrd";
94 static char *processes_ds_def[] =
95 {
96 "DS:running:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
97 "DS:sleeping:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
98 "DS:zombies:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
99 "DS:stopped:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
100 "DS:paging:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
101 "DS:blocked:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
102 NULL
103 };
104 static int processes_ds_num = 6;
106 static char *ps_rss_file = "processes/ps_rss-%s.rrd";
107 static char *ps_rss_ds_def[] =
108 {
109 /* max = 2^63 - 1 */
110 "DS:byte:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
111 NULL
112 };
113 static int ps_rss_ds_num = 1;
115 static char *ps_cputime_file = "processes/ps_cputime-%s.rrd";
116 static char *ps_cputime_ds_def[] =
117 {
118 /* 1 second in user-mode per second ought to be enough.. */
119 "DS:user:COUNTER:"COLLECTD_HEARTBEAT":0:1000000",
120 "DS:syst:COUNTER:"COLLECTD_HEARTBEAT":0:1000000",
121 NULL
122 };
123 static int ps_cputime_ds_num = 2;
125 static char *ps_count_file = "processes/ps_count-%s.rrd";
126 static char *ps_count_ds_def[] =
127 {
128 "DS:processes:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
129 "DS:threads:GAUGE:"COLLECTD_HEARTBEAT":0:65535",
130 NULL
131 };
132 static int ps_count_ds_num = 2;
134 static char *ps_pagefaults_file = "processes/ps_pagefaults-%s.rrd";
135 static char *ps_pagefaults_ds_def[] =
136 {
137 /* max = 2^63 - 1 */
138 "DS:minflt:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
139 "DS:majflt:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
140 NULL
141 };
142 static int ps_pagefaults_ds_num = 2;
144 static char *config_keys[] =
145 {
146 "CollectName",
147 NULL
148 };
149 static int config_keys_num = 1;
151 typedef struct procstat
152 {
153 #define PROCSTAT_NAME_LEN 256
154 char name[PROCSTAT_NAME_LEN];
155 unsigned int num_proc;
156 unsigned int num_lwp;
157 unsigned long vmem_rss;
158 unsigned long vmem_minflt;
159 unsigned long vmem_majflt;
160 unsigned long long cpu_user;
161 unsigned long long cpu_system;
162 struct procstat *next;
163 } procstat_t;
165 static procstat_t *list_head_g = NULL;
167 #if HAVE_THREAD_INFO
168 static mach_port_t port_host_self;
169 static mach_port_t port_task_self;
171 static processor_set_name_array_t pset_list;
172 static mach_msg_type_number_t pset_list_len;
173 /* #endif HAVE_THREAD_INFO */
175 #elif KERNEL_LINUX
176 static long pagesize_g;
177 #endif /* KERNEL_LINUX */
179 static procstat_t *ps_list_append (procstat_t *list, const char *name)
180 {
181 procstat_t *new;
182 procstat_t *ptr;
184 if ((new = (procstat_t *) malloc (sizeof (procstat_t))) == NULL)
185 return (NULL);
186 memset (new, 0, sizeof (procstat_t));
187 strncpy (new->name, name, PROCSTAT_NAME_LEN);
189 for (ptr = list; ptr != NULL; ptr = ptr->next)
190 if (ptr->next == NULL)
191 break;
193 if (ptr != NULL)
194 ptr->next = new;
196 return (new);
197 }
199 static void ps_list_add (procstat_t *list, procstat_t *entry)
200 {
201 procstat_t *ptr;
203 ptr = list;
204 while ((ptr != NULL) && (strcmp (ptr->name, entry->name) != 0))
205 ptr = ptr->next;
207 if (ptr == NULL)
208 return;
210 ptr->num_proc += entry->num_proc;
211 ptr->num_lwp += entry->num_lwp;
212 ptr->vmem_rss += entry->vmem_rss;
213 ptr->vmem_minflt += entry->vmem_minflt;
214 ptr->vmem_majflt += entry->vmem_majflt;
215 ptr->cpu_user += entry->cpu_user;
216 ptr->cpu_system += entry->cpu_system;
217 }
219 static void ps_list_reset (procstat_t *ps)
220 {
221 while (ps != NULL)
222 {
223 ps->num_proc = 0;
224 ps->num_lwp = 0;
225 ps->vmem_rss = 0;
226 ps->vmem_minflt = 0;
227 ps->vmem_majflt = 0;
228 ps->cpu_user = 0;
229 ps->cpu_system = 0;
230 ps = ps->next;
231 }
232 }
234 static int ps_config (char *key, char *value)
235 {
236 if (strcasecmp (key, "CollectName") == 0)
237 {
238 procstat_t *entry;
240 entry = ps_list_append (list_head_g, value);
241 if (entry == NULL)
242 {
243 syslog (LOG_ERR, "processes plugin: ps_list_append failed.");
244 return (1);
245 }
246 if (list_head_g == NULL)
247 list_head_g = entry;
248 }
249 else
250 {
251 return (-1);
252 }
254 return (0);
255 }
257 static void ps_init (void)
258 {
259 #if HAVE_THREAD_INFO
260 kern_return_t status;
262 port_host_self = mach_host_self ();
263 port_task_self = mach_task_self ();
265 if (pset_list != NULL)
266 {
267 vm_deallocate (port_task_self,
268 (vm_address_t) pset_list,
269 pset_list_len * sizeof (processor_set_t));
270 pset_list = NULL;
271 pset_list_len = 0;
272 }
274 if ((status = host_processor_sets (port_host_self,
275 &pset_list,
276 &pset_list_len)) != KERN_SUCCESS)
277 {
278 syslog (LOG_ERR, "host_processor_sets failed: %s\n",
279 mach_error_string (status));
280 pset_list = NULL;
281 pset_list_len = 0;
282 return;
283 }
284 /* #endif HAVE_THREAD_INFO */
286 #elif KERNEL_LINUX
287 pagesize_g = sysconf(_SC_PAGESIZE);
288 DBG ("pagesize_g = %li; CONFIG_HZ = %i;",
289 pagesize_g, CONFIG_HZ);
290 #endif /* KERNEL_LINUX */
292 return;
293 }
295 static void ps_write (char *host, char *inst, char *val)
296 {
297 rrd_update_file (host, processes_file, val,
298 processes_ds_def, processes_ds_num);
299 }
301 static void ps_rss_write (char *host, char *inst, char *val)
302 {
303 char filename[256];
304 int status;
306 status = snprintf (filename, 256, ps_rss_file, inst);
307 if ((status < 1) || (status >= 256))
308 return;
310 rrd_update_file (host, filename, val, ps_rss_ds_def, ps_rss_ds_num);
311 }
313 static void ps_cputime_write (char *host, char *inst, char *val)
314 {
315 char filename[256];
316 int status;
318 status = snprintf (filename, 256, ps_cputime_file, inst);
319 if ((status < 1) || (status >= 256))
320 return;
322 DBG ("host = %s; filename = %s; val = %s;",
323 host, filename, val);
324 rrd_update_file (host, filename, val,
325 ps_cputime_ds_def, ps_cputime_ds_num);
326 }
328 static void ps_count_write (char *host, char *inst, char *val)
329 {
330 char filename[256];
331 int status;
333 status = snprintf (filename, 256, ps_count_file, inst);
334 if ((status < 1) || (status >= 256))
335 return;
337 DBG ("host = %s; filename = %s; val = %s;",
338 host, filename, val);
339 rrd_update_file (host, filename, val,
340 ps_count_ds_def, ps_count_ds_num);
341 }
343 static void ps_pagefaults_write (char *host, char *inst, char *val)
344 {
345 char filename[256];
346 int status;
348 status = snprintf (filename, 256, ps_pagefaults_file, inst);
349 if ((status < 1) || (status >= 256))
350 return;
352 DBG ("host = %s; filename = %s; val = %s;",
353 host, filename, val);
354 rrd_update_file (host, filename, val,
355 ps_pagefaults_ds_def, ps_pagefaults_ds_num);
356 }
358 #if PROCESSES_HAVE_READ
359 static void ps_submit (int running,
360 int sleeping,
361 int zombies,
362 int stopped,
363 int paging,
364 int blocked)
365 {
366 char buf[BUFSIZE];
368 if (snprintf (buf, BUFSIZE, "%u:%i:%i:%i:%i:%i:%i",
369 (unsigned int) curtime,
370 running, sleeping, zombies, stopped, paging,
371 blocked) >= BUFSIZE)
372 return;
374 DBG ("running = %i; sleeping = %i; zombies = %i; stopped = %i; paging = %i; blocked = %i;",
375 running, sleeping, zombies, stopped, paging, blocked);
377 plugin_submit (MODULE_NAME, "-", buf);
378 }
380 static void ps_submit_proc (procstat_t *ps)
381 {
382 char buffer[64];
384 if (ps == NULL)
385 return;
387 snprintf (buffer, 64, "%u:%lu",
388 (unsigned int) curtime,
389 ps->vmem_rss);
390 buffer[63] = '\0';
391 plugin_submit ("ps_rss", ps->name, buffer);
393 snprintf (buffer, 64, "%u:%u:%u",
394 (unsigned int) curtime,
395 /* Make the counter overflow */
396 (unsigned int) (ps->cpu_user & 0xFFFFFFFF),
397 (unsigned int) (ps->cpu_system & 0xFFFFFFFF));
398 buffer[63] = '\0';
399 plugin_submit ("ps_cputime", ps->name, buffer);
401 snprintf (buffer, 64, "%u:%u:%u",
402 (unsigned int) curtime,
403 ps->num_proc, ps->num_lwp);
404 buffer[63] = '\0';
405 plugin_submit ("ps_count", ps->name, buffer);
407 snprintf (buffer, 64, "%u:%lu:%lu",
408 (unsigned int) curtime,
409 ps->vmem_minflt, ps->vmem_majflt);
410 buffer[63] = '\0';
411 plugin_submit ("ps_pagefaults", ps->name, buffer);
413 DBG ("name = %s; num_proc = %i; num_lwp = %i; vmem_rss = %i; "
414 "vmem_minflt = %i; vmem_majflt = %i; "
415 "cpu_user = %i; cpu_system = %i;",
416 ps->name, ps->num_proc, ps->num_lwp, ps->vmem_rss,
417 ps->vmem_minflt, ps->vmem_majflt, ps->cpu_user,
418 ps->cpu_system);
420 }
422 #if KERNEL_LINUX
423 static int *ps_read_tasks (int pid)
424 {
425 int *list = NULL;
426 int list_size = 1; /* size of allocated space, in elements */
427 int list_len = 0; /* number of currently used elements */
429 char dirname[64];
430 DIR *dh;
431 struct dirent *ent;
433 snprintf (dirname, 64, "/proc/%i/task", pid);
434 dirname[63] = '\0';
436 if ((dh = opendir (dirname)) == NULL)
437 {
438 syslog (LOG_NOTICE, "processes plugin: Failed to open directory `%s'",
439 dirname);
440 return (NULL);
441 }
443 while ((ent = readdir (dh)) != NULL)
444 {
445 if (!isdigit (ent->d_name[0]))
446 continue;
448 if ((list_len + 1) >= list_size)
449 {
450 int *new_ptr;
451 int new_size = 2 * list_size;
452 /* Comes in sizes: 2, 4, 8, 16, ... */
454 new_ptr = (int *) realloc (list, (size_t) (sizeof (int) * new_size));
455 if (new_ptr == NULL)
456 {
457 if (list != NULL)
458 free (list);
459 syslog (LOG_ERR, "processes plugin: "
460 "Failed to allocate more memory.");
461 return (NULL);
462 }
464 list = new_ptr;
465 list_size = new_size;
467 memset (list + list_len, 0, sizeof (int) * (list_size - list_len));
468 }
470 list[list_len] = atoi (ent->d_name);
471 if (list[list_len] != 0)
472 list_len++;
473 }
475 closedir (dh);
477 assert (list_len < list_size);
478 assert (list[list_len] == 0);
480 return (list);
481 }
483 int ps_read_process (int pid, procstat_t *ps, char *state)
484 {
485 char filename[64];
486 char buffer[1024];
487 FILE *fh;
489 char *fields[64];
490 char fields_len;
492 int *tasks;
493 int i;
495 int ppid;
496 int name_len;
498 memset (ps, 0, sizeof (procstat_t));
500 snprintf (filename, 64, "/proc/%i/stat", pid);
501 filename[63] = '\0';
503 if ((fh = fopen (filename, "r")) == NULL)
504 return (-1);
506 if (fgets (buffer, 1024, fh) == NULL)
507 {
508 fclose (fh);
509 return (-1);
510 }
512 fclose (fh);
514 fields_len = strsplit (buffer, fields, 64);
515 if (fields_len < 24)
516 {
517 DBG ("`%s' has only %i fields..",
518 filename, fields_len);
519 return (-1);
520 }
521 else if (fields_len != 41)
522 {
523 DBG ("WARNING: (fields_len = %i) != 41", fields_len);
524 }
526 /* copy the name, strip brackets in the process */
527 name_len = strlen (fields[1]) - 2;
528 if ((fields[1][0] != '(') || (fields[1][name_len + 1] != ')'))
529 {
530 DBG ("No brackets found in process name: `%s'", fields[1]);
531 return (-1);
532 }
533 fields[1] = fields[1] + 1;
534 fields[1][name_len] = '\0';
535 strncpy (ps->name, fields[1], PROCSTAT_NAME_LEN);
537 ppid = atoi (fields[3]);
539 if ((tasks = ps_read_tasks (pid)) == NULL)
540 {
541 DBG ("ps_read_tasks (%i) failed.", pid);
542 return (-1);
543 }
545 *state = '\0';
546 ps->num_lwp = 0;
547 ps->num_proc = 1;
548 for (i = 0; tasks[i] != 0; i++)
549 ps->num_lwp++;
551 free (tasks);
552 tasks = NULL;
554 /* Leave the rest at zero if this is only an LWP */
555 if (ps->num_proc == 0)
556 {
557 DBG ("This is only an LWP: pid = %i; name = %s;",
558 pid, ps->name);
559 return (0);
560 }
562 ps->vmem_minflt = atol (fields[9]);
563 ps->vmem_majflt = atol (fields[11]);
564 ps->cpu_user = atoll (fields[13]);
565 ps->cpu_system = atoll (fields[14]);
566 ps->vmem_rss = atol (fields[23]);
568 /* Convert jiffies to useconds */
569 ps->cpu_user = ps->cpu_user * 1000000 / CONFIG_HZ;
570 ps->cpu_system = ps->cpu_system * 1000000 / CONFIG_HZ;
571 ps->vmem_rss = ps->vmem_rss * pagesize_g;
573 *state = fields[2][0];
575 /* success */
576 return (0);
577 } /* int ps_read_process (...) */
578 #endif /* KERNEL_LINUX */
580 static void ps_read (void)
581 {
582 #if HAVE_THREAD_INFO
583 kern_return_t status;
585 int pset;
586 processor_set_t port_pset_priv;
588 int task;
589 task_array_t task_list;
590 mach_msg_type_number_t task_list_len;
592 int thread;
593 thread_act_array_t thread_list;
594 mach_msg_type_number_t thread_list_len;
595 thread_basic_info_data_t thread_data;
596 mach_msg_type_number_t thread_data_len;
598 int running = 0;
599 int sleeping = 0;
600 int zombies = 0;
601 int stopped = 0;
602 int blocked = 0;
604 /*
605 * The Mach-concept is a little different from the traditional UNIX
606 * concept: All the work is done in threads. Threads are contained in
607 * `tasks'. Therefore, `task status' doesn't make much sense, since
608 * it's actually a `thread status'.
609 * Tasks are assigned to sets of processors, so that's where you go to
610 * get a list.
611 */
612 for (pset = 0; pset < pset_list_len; pset++)
613 {
614 if ((status = host_processor_set_priv (port_host_self,
615 pset_list[pset],
616 &port_pset_priv)) != KERN_SUCCESS)
617 {
618 syslog (LOG_ERR, "host_processor_set_priv failed: %s\n",
619 mach_error_string (status));
620 continue;
621 }
623 if ((status = processor_set_tasks (port_pset_priv,
624 &task_list,
625 &task_list_len)) != KERN_SUCCESS)
626 {
627 syslog (LOG_ERR, "processor_set_tasks failed: %s\n",
628 mach_error_string (status));
629 mach_port_deallocate (port_task_self, port_pset_priv);
630 continue;
631 }
633 for (task = 0; task < task_list_len; task++)
634 {
635 status = task_threads (task_list[task], &thread_list,
636 &thread_list_len);
637 if (status != KERN_SUCCESS)
638 {
639 /* Apple's `top' treats this case a zombie. It
640 * makes sense to some extend: A `zombie'
641 * thread is nonsense, since the task/process
642 * is dead. */
643 zombies++;
644 DBG ("task_threads failed: %s",
645 mach_error_string (status));
646 if (task_list[task] != port_task_self)
647 mach_port_deallocate (port_task_self,
648 task_list[task]);
649 continue; /* with next task_list */
650 }
652 for (thread = 0; thread < thread_list_len; thread++)
653 {
654 thread_data_len = THREAD_BASIC_INFO_COUNT;
655 status = thread_info (thread_list[thread],
656 THREAD_BASIC_INFO,
657 (thread_info_t) &thread_data,
658 &thread_data_len);
659 if (status != KERN_SUCCESS)
660 {
661 syslog (LOG_ERR, "thread_info failed: %s\n",
662 mach_error_string (status));
663 if (task_list[task] != port_task_self)
664 mach_port_deallocate (port_task_self,
665 thread_list[thread]);
666 continue; /* with next thread_list */
667 }
669 switch (thread_data.run_state)
670 {
671 case TH_STATE_RUNNING:
672 running++;
673 break;
674 case TH_STATE_STOPPED:
675 /* What exactly is `halted'? */
676 case TH_STATE_HALTED:
677 stopped++;
678 break;
679 case TH_STATE_WAITING:
680 sleeping++;
681 break;
682 case TH_STATE_UNINTERRUPTIBLE:
683 blocked++;
684 break;
685 /* There is no `zombie' case here,
686 * since there are no zombie-threads.
687 * There's only zombie tasks, which are
688 * handled above. */
689 default:
690 syslog (LOG_WARNING,
691 "Unknown thread status: %s",
692 thread_data.run_state);
693 break;
694 } /* switch (thread_data.run_state) */
696 if (task_list[task] != port_task_self)
697 {
698 status = mach_port_deallocate (port_task_self,
699 thread_list[thread]);
700 if (status != KERN_SUCCESS)
701 syslog (LOG_ERR, "mach_port_deallocate failed: %s",
702 mach_error_string (status));
703 }
704 } /* for (thread_list) */
706 if ((status = vm_deallocate (port_task_self,
707 (vm_address_t) thread_list,
708 thread_list_len * sizeof (thread_act_t)))
709 != KERN_SUCCESS)
710 {
711 syslog (LOG_ERR, "vm_deallocate failed: %s",
712 mach_error_string (status));
713 }
714 thread_list = NULL;
715 thread_list_len = 0;
717 /* Only deallocate the task port, if it isn't our own.
718 * Don't know what would happen in that case, but this
719 * is what Apple's top does.. ;) */
720 if (task_list[task] != port_task_self)
721 {
722 status = mach_port_deallocate (port_task_self,
723 task_list[task]);
724 if (status != KERN_SUCCESS)
725 syslog (LOG_ERR, "mach_port_deallocate failed: %s",
726 mach_error_string (status));
727 }
728 } /* for (task_list) */
730 if ((status = vm_deallocate (port_task_self,
731 (vm_address_t) task_list,
732 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
733 {
734 syslog (LOG_ERR, "vm_deallocate failed: %s",
735 mach_error_string (status));
736 }
737 task_list = NULL;
738 task_list_len = 0;
740 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
741 != KERN_SUCCESS)
742 {
743 syslog (LOG_ERR, "mach_port_deallocate failed: %s",
744 mach_error_string (status));
745 }
746 } /* for (pset_list) */
748 ps_submit (running, sleeping, zombies, stopped, -1, blocked);
749 /* #endif HAVE_THREAD_INFO */
751 #elif KERNEL_LINUX
752 int running = 0;
753 int sleeping = 0;
754 int zombies = 0;
755 int stopped = 0;
756 int paging = 0;
757 int blocked = 0;
759 struct dirent *ent;
760 DIR *proc;
761 int pid;
763 int status;
764 procstat_t ps;
765 char state;
767 procstat_t *ps_ptr;
769 running = sleeping = zombies = stopped = paging = blocked = 0;
770 ps_list_reset (list_head_g);
772 if ((proc = opendir ("/proc")) == NULL)
773 {
774 syslog (LOG_ERR, "Cannot open `/proc': %s", strerror (errno));
775 return;
776 }
778 while ((ent = readdir (proc)) != NULL)
779 {
780 if (!isdigit (ent->d_name[0]))
781 continue;
783 if ((pid = atoi (ent->d_name)) < 1)
784 continue;
786 status = ps_read_process (pid, &ps, &state);
787 if (status != 0)
788 {
789 DBG ("ps_read_process failed: %i", status);
790 continue;
791 }
793 switch (state)
794 {
795 case 'R': running++; break;
796 case 'S': sleeping++; break;
797 case 'D': blocked++; break;
798 case 'Z': zombies++; break;
799 case 'T': stopped++; break;
800 case 'W': paging++; break;
801 }
803 if (list_head_g != NULL)
804 ps_list_add (list_head_g, &ps);
805 }
807 closedir (proc);
809 ps_submit (running, sleeping, zombies, stopped, paging, blocked);
811 for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
812 ps_submit_proc (ps_ptr);
813 #endif /* KERNEL_LINUX */
814 }
815 #else
816 # define ps_read NULL
817 #endif /* PROCESSES_HAVE_READ */
819 void module_register (void)
820 {
821 plugin_register (MODULE_NAME, ps_init, ps_read, ps_write);
822 plugin_register ("ps_rss", NULL, NULL, ps_rss_write);
823 plugin_register ("ps_cputime", NULL, NULL, ps_cputime_write);
824 plugin_register ("ps_count", NULL, NULL, ps_count_write);
825 plugin_register ("ps_pagefaults", NULL, NULL, ps_pagefaults_write);
826 cf_register (MODULE_NAME, ps_config, config_keys, config_keys_num);
827 }
829 #undef BUFSIZE
830 #undef MODULE_NAME