1 /**
2 * collectd - src/processes.c
3 * Copyright (C) 2005 Lyonel Vincent
4 * Copyright (C) 2006-2007 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 "configfile.h"
30 /* Include header files for the mach system, if they exist.. */
31 #if HAVE_THREAD_INFO
32 # if HAVE_MACH_MACH_INIT_H
33 # include <mach/mach_init.h>
34 # endif
35 # if HAVE_MACH_HOST_PRIV_H
36 # include <mach/host_priv.h>
37 # endif
38 # if HAVE_MACH_MACH_ERROR_H
39 # include <mach/mach_error.h>
40 # endif
41 # if HAVE_MACH_MACH_HOST_H
42 # include <mach/mach_host.h>
43 # endif
44 # if HAVE_MACH_MACH_PORT_H
45 # include <mach/mach_port.h>
46 # endif
47 # if HAVE_MACH_MACH_TYPES_H
48 # include <mach/mach_types.h>
49 # endif
50 # if HAVE_MACH_MESSAGE_H
51 # include <mach/message.h>
52 # endif
53 # if HAVE_MACH_PROCESSOR_SET_H
54 # include <mach/processor_set.h>
55 # endif
56 # if HAVE_MACH_TASK_H
57 # include <mach/task.h>
58 # endif
59 # if HAVE_MACH_THREAD_ACT_H
60 # include <mach/thread_act.h>
61 # endif
62 # if HAVE_MACH_VM_REGION_H
63 # include <mach/vm_region.h>
64 # endif
65 # if HAVE_MACH_VM_MAP_H
66 # include <mach/vm_map.h>
67 # endif
68 # if HAVE_MACH_VM_PROT_H
69 # include <mach/vm_prot.h>
70 # endif
71 # if HAVE_SYS_SYSCTL_H
72 # include <sys/sysctl.h>
73 # endif
74 /* #endif HAVE_THREAD_INFO */
76 #elif KERNEL_LINUX
77 # if HAVE_LINUX_CONFIG_H
78 # include <linux/config.h>
79 # endif
80 # ifndef CONFIG_HZ
81 # define CONFIG_HZ 100
82 # endif
83 #endif /* KERNEL_LINUX */
85 #define MODULE_NAME "processes"
87 #if HAVE_THREAD_INFO || KERNEL_LINUX
88 # define PROCESSES_HAVE_READ 1
89 #else
90 # define PROCESSES_HAVE_READ 0
91 #endif
93 #define BUFSIZE 256
95 #if PROCESSES_HAVE_READ
96 #if HAVE_THREAD_INFO | KERNEL_LINUX
97 static const char *config_keys[] =
98 {
99 "Process",
100 NULL
101 };
102 static int config_keys_num = 1;
103 #endif
105 typedef struct procstat_entry_s
106 {
107 unsigned long id;
108 unsigned long age;
110 unsigned long num_proc;
111 unsigned long num_lwp;
112 unsigned long vmem_rss;
114 unsigned long vmem_minflt;
115 unsigned long vmem_majflt;
116 unsigned long vmem_minflt_counter;
117 unsigned long vmem_majflt_counter;
119 unsigned long cpu_user;
120 unsigned long cpu_system;
121 unsigned long cpu_user_counter;
122 unsigned long cpu_system_counter;
124 struct procstat_entry_s *next;
125 } procstat_entry_t;
127 #define PROCSTAT_NAME_LEN 256
128 typedef struct procstat
129 {
130 char name[PROCSTAT_NAME_LEN];
132 unsigned long num_proc;
133 unsigned long num_lwp;
134 unsigned long vmem_rss;
136 unsigned long vmem_minflt_counter;
137 unsigned long vmem_majflt_counter;
139 unsigned long cpu_user_counter;
140 unsigned long cpu_system_counter;
142 struct procstat *next;
143 struct procstat_entry_s *instances;
144 } procstat_t;
146 #if HAVE_THREAD_INFO | KERNEL_LINUX
147 static procstat_t *list_head_g = NULL;
148 #endif
150 #if HAVE_THREAD_INFO
151 static mach_port_t port_host_self;
152 static mach_port_t port_task_self;
154 static processor_set_name_array_t pset_list;
155 static mach_msg_type_number_t pset_list_len;
156 /* #endif HAVE_THREAD_INFO */
158 #elif KERNEL_LINUX
159 static long pagesize_g;
160 #endif /* KERNEL_LINUX */
162 #if HAVE_THREAD_INFO | KERNEL_LINUX
163 static void ps_list_register (const char *name)
164 {
165 procstat_t *new;
166 procstat_t *ptr;
168 if ((new = (procstat_t *) malloc (sizeof (procstat_t))) == NULL)
169 return;
170 memset (new, 0, sizeof (procstat_t));
171 strncpy (new->name, name, PROCSTAT_NAME_LEN);
173 for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
174 {
175 if (strcmp (ptr->name, name) == 0)
176 return;
177 if (ptr->next == NULL)
178 break;
179 }
181 if (ptr == NULL)
182 list_head_g = new;
183 else
184 ptr->next = new;
185 }
187 static procstat_t *ps_list_search (const char *name)
188 {
189 procstat_t *ptr;
191 for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
192 if (strcmp (ptr->name, name) == 0)
193 break;
195 return (ptr);
196 }
198 static void ps_list_add (const char *name, procstat_entry_t *entry)
199 {
200 procstat_t *ps;
201 procstat_entry_t *pse;
203 if (entry->id == 0)
204 return;
206 if ((ps = ps_list_search (name)) == NULL)
207 return;
209 for (pse = ps->instances; pse != NULL; pse = pse->next)
210 if ((pse->id == entry->id) || (pse->next == NULL))
211 break;
213 if ((pse == NULL) || (pse->id != entry->id))
214 {
215 procstat_entry_t *new;
217 new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
218 if (new == NULL)
219 return;
220 memset (new, 0, sizeof (procstat_entry_t));
221 new->id = entry->id;
223 if (pse == NULL)
224 ps->instances = new;
225 else
226 pse->next = new;
228 pse = new;
229 }
231 pse->age = 0;
232 pse->num_proc = entry->num_proc;
233 pse->num_lwp = entry->num_lwp;
234 pse->vmem_rss = entry->vmem_rss;
236 ps->num_proc += pse->num_proc;
237 ps->num_lwp += pse->num_lwp;
238 ps->vmem_rss += pse->vmem_rss;
240 if ((entry->vmem_minflt_counter == 0)
241 && (entry->vmem_majflt_counter == 0))
242 {
243 pse->vmem_minflt_counter += entry->vmem_minflt;
244 pse->vmem_minflt = entry->vmem_minflt;
246 pse->vmem_majflt_counter += entry->vmem_majflt;
247 pse->vmem_majflt = entry->vmem_majflt;
248 }
249 else
250 {
251 if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
252 {
253 pse->vmem_minflt = entry->vmem_minflt_counter
254 + (ULONG_MAX - pse->vmem_minflt_counter);
255 }
256 else
257 {
258 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
259 }
260 pse->vmem_minflt_counter = entry->vmem_minflt_counter;
262 if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
263 {
264 pse->vmem_majflt = entry->vmem_majflt_counter
265 + (ULONG_MAX - pse->vmem_majflt_counter);
266 }
267 else
268 {
269 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
270 }
271 pse->vmem_majflt_counter = entry->vmem_majflt_counter;
272 }
274 ps->vmem_minflt_counter += pse->vmem_minflt;
275 ps->vmem_majflt_counter += pse->vmem_majflt;
277 if ((entry->cpu_user_counter == 0)
278 && (entry->cpu_system_counter == 0))
279 {
280 pse->cpu_user_counter += entry->cpu_user;
281 pse->cpu_user = entry->cpu_user;
283 pse->cpu_system_counter += entry->cpu_system;
284 pse->cpu_system = entry->cpu_system;
285 }
286 else
287 {
288 if (entry->cpu_user_counter < pse->cpu_user_counter)
289 {
290 pse->cpu_user = entry->cpu_user_counter
291 + (ULONG_MAX - pse->cpu_user_counter);
292 }
293 else
294 {
295 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
296 }
297 pse->cpu_user_counter = entry->cpu_user_counter;
299 if (entry->cpu_system_counter < pse->cpu_system_counter)
300 {
301 pse->cpu_system = entry->cpu_system_counter
302 + (ULONG_MAX - pse->cpu_system_counter);
303 }
304 else
305 {
306 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
307 }
308 pse->cpu_system_counter = entry->cpu_system_counter;
309 }
311 ps->cpu_user_counter += pse->cpu_user;
312 ps->cpu_system_counter += pse->cpu_system;
313 }
315 static void ps_list_reset (void)
316 {
317 procstat_t *ps;
318 procstat_entry_t *pse;
319 procstat_entry_t *pse_prev;
321 for (ps = list_head_g; ps != NULL; ps = ps->next)
322 {
323 ps->num_proc = 0;
324 ps->num_lwp = 0;
325 ps->vmem_rss = 0;
327 pse_prev = NULL;
328 pse = ps->instances;
329 while (pse != NULL)
330 {
331 if (pse->age > 10)
332 {
333 DEBUG ("Removing this procstat entry cause it's too old: "
334 "id = %lu; name = %s;",
335 pse->id, ps->name);
337 if (pse_prev == NULL)
338 {
339 ps->instances = pse->next;
340 free (pse);
341 pse = ps->instances;
342 }
343 else
344 {
345 pse_prev->next = pse->next;
346 free (pse);
347 pse = pse_prev->next;
348 }
349 }
350 else
351 {
352 pse->age++;
353 pse_prev = pse;
354 pse = pse->next;
355 }
356 } /* while (pse != NULL) */
357 } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
358 }
360 static int ps_config (const char *key, const char *value)
361 {
362 if (strcasecmp (key, "Process") == 0)
363 {
364 ps_list_register (value);
365 }
366 else
367 {
368 return (-1);
369 }
371 return (0);
372 }
373 #endif /* HAVE_THREAD_INFO | KERNEL_LINUX */
375 static int ps_init (void)
376 {
377 #if HAVE_THREAD_INFO
378 kern_return_t status;
380 port_host_self = mach_host_self ();
381 port_task_self = mach_task_self ();
383 if (pset_list != NULL)
384 {
385 vm_deallocate (port_task_self,
386 (vm_address_t) pset_list,
387 pset_list_len * sizeof (processor_set_t));
388 pset_list = NULL;
389 pset_list_len = 0;
390 }
392 if ((status = host_processor_sets (port_host_self,
393 &pset_list,
394 &pset_list_len)) != KERN_SUCCESS)
395 {
396 ERROR ("host_processor_sets failed: %s\n",
397 mach_error_string (status));
398 pset_list = NULL;
399 pset_list_len = 0;
400 return (-1);
401 }
402 /* #endif HAVE_THREAD_INFO */
404 #elif KERNEL_LINUX
405 pagesize_g = sysconf(_SC_PAGESIZE);
406 DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
407 pagesize_g, CONFIG_HZ);
408 #endif /* KERNEL_LINUX */
410 return (0);
411 } /* int ps_init */
413 static void ps_submit_state (const char *state, double value)
414 {
415 value_t values[1];
416 value_list_t vl = VALUE_LIST_INIT;
418 values[0].gauge = value;
420 vl.values = values;
421 vl.values_len = 1;
422 vl.time = time (NULL);
423 strcpy (vl.host, hostname_g);
424 strcpy (vl.plugin, "processes");
425 strcpy (vl.plugin_instance, "");
426 strncpy (vl.type_instance, state, sizeof (vl.type_instance));
428 plugin_dispatch_values ("ps_state", &vl);
429 }
431 static void ps_submit_proc_list (procstat_t *ps)
432 {
433 value_t values[2];
434 value_list_t vl = VALUE_LIST_INIT;
436 vl.values = values;
437 vl.values_len = 2;
438 vl.time = time (NULL);
439 strcpy (vl.host, hostname_g);
440 strcpy (vl.plugin, "processes");
441 strncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
443 vl.values[0].gauge = ps->vmem_rss;
444 vl.values_len = 1;
445 plugin_dispatch_values ("ps_rss", &vl);
447 vl.values[0].counter = ps->cpu_user_counter;
448 vl.values[1].counter = ps->cpu_system_counter;
449 vl.values_len = 2;
450 plugin_dispatch_values ("ps_cputime", &vl);
452 vl.values[0].gauge = ps->num_proc;
453 vl.values[1].gauge = ps->num_lwp;
454 vl.values_len = 2;
455 plugin_dispatch_values ("ps_count", &vl);
457 vl.values[0].counter = ps->vmem_minflt_counter;
458 vl.values[1].counter = ps->vmem_majflt_counter;
459 vl.values_len = 2;
460 plugin_dispatch_values ("ps_pagefaults", &vl);
462 DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; vmem_rss = %lu; "
463 "vmem_minflt_counter = %lu; vmem_majflt_counter = %lu; "
464 "cpu_user_counter = %lu; cpu_system_counter = %lu;",
465 ps->name, ps->num_proc, ps->num_lwp, ps->vmem_rss,
466 ps->vmem_minflt_counter, ps->vmem_majflt_counter,
467 ps->cpu_user_counter, ps->cpu_system_counter);
468 } /* void ps_submit_proc_list */
470 #if KERNEL_LINUX
471 static int *ps_read_tasks (int pid)
472 {
473 int *list = NULL;
474 int list_size = 1; /* size of allocated space, in elements */
475 int list_len = 0; /* number of currently used elements */
477 char dirname[64];
478 DIR *dh;
479 struct dirent *ent;
481 snprintf (dirname, 64, "/proc/%i/task", pid);
482 dirname[63] = '\0';
484 if ((dh = opendir (dirname)) == NULL)
485 {
486 DEBUG ("Failed to open directory `%s'", dirname);
487 return (NULL);
488 }
490 while ((ent = readdir (dh)) != NULL)
491 {
492 if (!isdigit (ent->d_name[0]))
493 continue;
495 if ((list_len + 1) >= list_size)
496 {
497 int *new_ptr;
498 int new_size = 2 * list_size;
499 /* Comes in sizes: 2, 4, 8, 16, ... */
501 new_ptr = (int *) realloc (list, (size_t) (sizeof (int) * new_size));
502 if (new_ptr == NULL)
503 {
504 if (list != NULL)
505 free (list);
506 ERROR ("processes plugin: "
507 "Failed to allocate more memory.");
508 return (NULL);
509 }
511 list = new_ptr;
512 list_size = new_size;
514 memset (list + list_len, 0, sizeof (int) * (list_size - list_len));
515 }
517 list[list_len] = atoi (ent->d_name);
518 if (list[list_len] != 0)
519 list_len++;
520 }
522 closedir (dh);
524 assert (list_len < list_size);
525 assert (list[list_len] == 0);
527 return (list);
528 }
530 int ps_read_process (int pid, procstat_t *ps, char *state)
531 {
532 char filename[64];
533 char buffer[1024];
534 FILE *fh;
536 char *fields[64];
537 char fields_len;
539 int *tasks;
540 int i;
542 int ppid;
543 int name_len;
545 long long unsigned cpu_user_counter;
546 long long unsigned cpu_system_counter;
547 long long unsigned vmem_rss;
549 memset (ps, 0, sizeof (procstat_t));
551 snprintf (filename, 64, "/proc/%i/stat", pid);
552 filename[63] = '\0';
554 if ((fh = fopen (filename, "r")) == NULL)
555 return (-1);
557 if (fgets (buffer, 1024, fh) == NULL)
558 {
559 fclose (fh);
560 return (-1);
561 }
563 fclose (fh);
565 fields_len = strsplit (buffer, fields, 64);
566 if (fields_len < 24)
567 {
568 DEBUG ("processes plugin: ps_read_process (pid = %i):"
569 " `%s' has only %i fields..",
570 (int) pid, filename, fields_len);
571 return (-1);
572 }
574 /* copy the name, strip brackets in the process */
575 name_len = strlen (fields[1]) - 2;
576 if ((fields[1][0] != '(') || (fields[1][name_len + 1] != ')'))
577 {
578 DEBUG ("No brackets found in process name: `%s'", fields[1]);
579 return (-1);
580 }
581 fields[1] = fields[1] + 1;
582 fields[1][name_len] = '\0';
583 strncpy (ps->name, fields[1], PROCSTAT_NAME_LEN);
585 ppid = atoi (fields[3]);
587 *state = fields[2][0];
589 if (*state == 'Z')
590 {
591 ps->num_lwp = 0;
592 ps->num_proc = 0;
593 }
594 else if ((tasks = ps_read_tasks (pid)) == NULL)
595 {
596 /* Kernel 2.4 or so */
597 ps->num_lwp = 1;
598 ps->num_proc = 1;
599 }
600 else
601 {
602 ps->num_lwp = 0;
603 ps->num_proc = 1;
604 for (i = 0; tasks[i] != 0; i++)
605 ps->num_lwp++;
607 free (tasks);
608 tasks = NULL;
609 }
611 /* Leave the rest at zero if this is only a zombi */
612 if (ps->num_proc == 0)
613 {
614 DEBUG ("This is only a zombi: pid = %i; name = %s;",
615 pid, ps->name);
616 return (0);
617 }
619 cpu_user_counter = atoll (fields[13]);
620 cpu_system_counter = atoll (fields[14]);
621 vmem_rss = atoll (fields[23]);
622 ps->vmem_minflt_counter = atol (fields[9]);
623 ps->vmem_majflt_counter = atol (fields[11]);
625 /* Convert jiffies to useconds */
626 cpu_user_counter = cpu_user_counter * 1000000 / CONFIG_HZ;
627 cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
628 vmem_rss = vmem_rss * pagesize_g;
630 ps->cpu_user_counter = (unsigned long) cpu_user_counter;
631 ps->cpu_system_counter = (unsigned long) cpu_system_counter;
632 ps->vmem_rss = (unsigned long) vmem_rss;
634 /* success */
635 return (0);
636 } /* int ps_read_process (...) */
637 #endif /* KERNEL_LINUX */
639 #if HAVE_THREAD_INFO
640 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
641 {
642 int mib[4];
644 struct kinfo_proc kp;
645 size_t kp_size;
647 mib[0] = CTL_KERN;
648 mib[1] = KERN_PROC;
649 mib[2] = KERN_PROC_PID;
651 if (pid_for_task (t, pid) != KERN_SUCCESS)
652 return (-1);
653 mib[3] = *pid;
655 kp_size = sizeof (kp);
656 if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
657 return (-1);
659 if (name_max_len > (MAXCOMLEN + 1))
660 name_max_len = MAXCOMLEN + 1;
662 strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
663 name[name_max_len - 1] = '\0';
665 DEBUG ("pid = %i; name = %s;", *pid, name);
667 /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
668 * `top' does it, because it is a lot of work and only used when
669 * debugging. -octo */
671 return (0);
672 }
673 #endif /* HAVE_THREAD_INFO */
675 static int ps_read (void)
676 {
677 #if HAVE_THREAD_INFO
678 kern_return_t status;
680 int pset;
681 processor_set_t port_pset_priv;
683 int task;
684 task_array_t task_list;
685 mach_msg_type_number_t task_list_len;
687 int task_pid;
688 char task_name[MAXCOMLEN + 1];
690 int thread;
691 thread_act_array_t thread_list;
692 mach_msg_type_number_t thread_list_len;
693 thread_basic_info_data_t thread_data;
694 mach_msg_type_number_t thread_data_len;
696 int running = 0;
697 int sleeping = 0;
698 int zombies = 0;
699 int stopped = 0;
700 int blocked = 0;
702 procstat_t *ps;
703 procstat_entry_t pse;
705 ps_list_reset ();
707 /*
708 * The Mach-concept is a little different from the traditional UNIX
709 * concept: All the work is done in threads. Threads are contained in
710 * `tasks'. Therefore, `task status' doesn't make much sense, since
711 * it's actually a `thread status'.
712 * Tasks are assigned to sets of processors, so that's where you go to
713 * get a list.
714 */
715 for (pset = 0; pset < pset_list_len; pset++)
716 {
717 if ((status = host_processor_set_priv (port_host_self,
718 pset_list[pset],
719 &port_pset_priv)) != KERN_SUCCESS)
720 {
721 ERROR ("host_processor_set_priv failed: %s\n",
722 mach_error_string (status));
723 continue;
724 }
726 if ((status = processor_set_tasks (port_pset_priv,
727 &task_list,
728 &task_list_len)) != KERN_SUCCESS)
729 {
730 ERROR ("processor_set_tasks failed: %s\n",
731 mach_error_string (status));
732 mach_port_deallocate (port_task_self, port_pset_priv);
733 continue;
734 }
736 for (task = 0; task < task_list_len; task++)
737 {
738 ps = NULL;
739 if (mach_get_task_name (task_list[task],
740 &task_pid,
741 task_name, PROCSTAT_NAME_LEN) == 0)
742 ps = ps_list_search (task_name);
744 /* Collect more detailed statistics for this process */
745 if (ps != NULL)
746 {
747 task_basic_info_data_t task_basic_info;
748 mach_msg_type_number_t task_basic_info_len;
749 task_events_info_data_t task_events_info;
750 mach_msg_type_number_t task_events_info_len;
751 task_absolutetime_info_data_t task_absolutetime_info;
752 mach_msg_type_number_t task_absolutetime_info_len;
754 memset (&pse, '\0', sizeof (pse));
755 pse.id = task_pid;
757 task_basic_info_len = TASK_BASIC_INFO_COUNT;
758 status = task_info (task_list[task],
759 TASK_BASIC_INFO,
760 (task_info_t) &task_basic_info,
761 &task_basic_info_len);
762 if (status != KERN_SUCCESS)
763 {
764 ERROR ("task_info failed: %s",
765 mach_error_string (status));
766 continue; /* with next thread_list */
767 }
769 task_events_info_len = TASK_EVENTS_INFO_COUNT;
770 status = task_info (task_list[task],
771 TASK_EVENTS_INFO,
772 (task_info_t) &task_events_info,
773 &task_events_info_len);
774 if (status != KERN_SUCCESS)
775 {
776 ERROR ("task_info failed: %s",
777 mach_error_string (status));
778 continue; /* with next thread_list */
779 }
781 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
782 status = task_info (task_list[task],
783 TASK_ABSOLUTETIME_INFO,
784 (task_info_t) &task_absolutetime_info,
785 &task_absolutetime_info_len);
786 if (status != KERN_SUCCESS)
787 {
788 ERROR ("task_info failed: %s",
789 mach_error_string (status));
790 continue; /* with next thread_list */
791 }
793 pse.num_proc++;
794 pse.vmem_rss = task_basic_info.resident_size;
796 pse.vmem_minflt_counter = task_events_info.cow_faults;
797 pse.vmem_majflt_counter = task_events_info.faults;
799 pse.cpu_user_counter = task_absolutetime_info.total_user;
800 pse.cpu_system_counter = task_absolutetime_info.total_system;
801 }
803 status = task_threads (task_list[task], &thread_list,
804 &thread_list_len);
805 if (status != KERN_SUCCESS)
806 {
807 /* Apple's `top' treats this case a zombie. It
808 * makes sense to some extend: A `zombie'
809 * thread is nonsense, since the task/process
810 * is dead. */
811 zombies++;
812 DEBUG ("task_threads failed: %s",
813 mach_error_string (status));
814 if (task_list[task] != port_task_self)
815 mach_port_deallocate (port_task_self,
816 task_list[task]);
817 continue; /* with next task_list */
818 }
820 for (thread = 0; thread < thread_list_len; thread++)
821 {
822 thread_data_len = THREAD_BASIC_INFO_COUNT;
823 status = thread_info (thread_list[thread],
824 THREAD_BASIC_INFO,
825 (thread_info_t) &thread_data,
826 &thread_data_len);
827 if (status != KERN_SUCCESS)
828 {
829 ERROR ("thread_info failed: %s",
830 mach_error_string (status));
831 if (task_list[task] != port_task_self)
832 mach_port_deallocate (port_task_self,
833 thread_list[thread]);
834 continue; /* with next thread_list */
835 }
837 if (ps != NULL)
838 pse.num_lwp++;
840 switch (thread_data.run_state)
841 {
842 case TH_STATE_RUNNING:
843 running++;
844 break;
845 case TH_STATE_STOPPED:
846 /* What exactly is `halted'? */
847 case TH_STATE_HALTED:
848 stopped++;
849 break;
850 case TH_STATE_WAITING:
851 sleeping++;
852 break;
853 case TH_STATE_UNINTERRUPTIBLE:
854 blocked++;
855 break;
856 /* There is no `zombie' case here,
857 * since there are no zombie-threads.
858 * There's only zombie tasks, which are
859 * handled above. */
860 default:
861 WARNING ("Unknown thread status: %s",
862 thread_data.run_state);
863 break;
864 } /* switch (thread_data.run_state) */
866 if (task_list[task] != port_task_self)
867 {
868 status = mach_port_deallocate (port_task_self,
869 thread_list[thread]);
870 if (status != KERN_SUCCESS)
871 ERROR ("mach_port_deallocate failed: %s",
872 mach_error_string (status));
873 }
874 } /* for (thread_list) */
876 if ((status = vm_deallocate (port_task_self,
877 (vm_address_t) thread_list,
878 thread_list_len * sizeof (thread_act_t)))
879 != KERN_SUCCESS)
880 {
881 ERROR ("vm_deallocate failed: %s",
882 mach_error_string (status));
883 }
884 thread_list = NULL;
885 thread_list_len = 0;
887 /* Only deallocate the task port, if it isn't our own.
888 * Don't know what would happen in that case, but this
889 * is what Apple's top does.. ;) */
890 if (task_list[task] != port_task_self)
891 {
892 status = mach_port_deallocate (port_task_self,
893 task_list[task]);
894 if (status != KERN_SUCCESS)
895 ERROR ("mach_port_deallocate failed: %s",
896 mach_error_string (status));
897 }
899 if (ps != NULL)
900 ps_list_add (task_name, &pse);
901 } /* for (task_list) */
903 if ((status = vm_deallocate (port_task_self,
904 (vm_address_t) task_list,
905 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
906 {
907 ERROR ("vm_deallocate failed: %s",
908 mach_error_string (status));
909 }
910 task_list = NULL;
911 task_list_len = 0;
913 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
914 != KERN_SUCCESS)
915 {
916 ERROR ("mach_port_deallocate failed: %s",
917 mach_error_string (status));
918 }
919 } /* for (pset_list) */
921 ps_submit_state ("running", running);
922 ps_submit_state ("sleeping", sleeping);
923 ps_submit_state ("zombies", zombies);
924 ps_submit_state ("stopped", stopped);
925 ps_submit_state ("blocked", blocked);
927 for (ps = list_head_g; ps != NULL; ps = ps->next)
928 ps_submit_proc_list (ps);
929 /* #endif HAVE_THREAD_INFO */
931 #elif KERNEL_LINUX
932 int running = 0;
933 int sleeping = 0;
934 int zombies = 0;
935 int stopped = 0;
936 int paging = 0;
937 int blocked = 0;
939 struct dirent *ent;
940 DIR *proc;
941 int pid;
943 int status;
944 procstat_t ps;
945 procstat_entry_t pse;
946 char state;
948 procstat_t *ps_ptr;
950 running = sleeping = zombies = stopped = paging = blocked = 0;
951 ps_list_reset ();
953 if ((proc = opendir ("/proc")) == NULL)
954 {
955 char errbuf[1024];
956 ERROR ("Cannot open `/proc': %s",
957 sstrerror (errno, errbuf, sizeof (errbuf)));
958 return (-1);
959 }
961 while ((ent = readdir (proc)) != NULL)
962 {
963 if (!isdigit (ent->d_name[0]))
964 continue;
966 if ((pid = atoi (ent->d_name)) < 1)
967 continue;
969 status = ps_read_process (pid, &ps, &state);
970 if (status != 0)
971 {
972 DEBUG ("ps_read_process failed: %i", status);
973 continue;
974 }
976 pse.id = pid;
977 pse.age = 0;
979 pse.num_proc = ps.num_proc;
980 pse.num_lwp = ps.num_lwp;
981 pse.vmem_rss = ps.vmem_rss;
983 pse.vmem_minflt = 0;
984 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
985 pse.vmem_majflt = 0;
986 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
988 pse.cpu_user = 0;
989 pse.cpu_user_counter = ps.cpu_user_counter;
990 pse.cpu_system = 0;
991 pse.cpu_system_counter = ps.cpu_system_counter;
993 switch (state)
994 {
995 case 'R': running++; break;
996 case 'S': sleeping++; break;
997 case 'D': blocked++; break;
998 case 'Z': zombies++; break;
999 case 'T': stopped++; break;
1000 case 'W': paging++; break;
1001 }
1003 ps_list_add (ps.name, &pse);
1004 }
1006 closedir (proc);
1008 ps_submit_state ("running", running);
1009 ps_submit_state ("sleeping", sleeping);
1010 ps_submit_state ("zombies", zombies);
1011 ps_submit_state ("stopped", stopped);
1012 ps_submit_state ("paging", paging);
1013 ps_submit_state ("blocked", blocked);
1015 for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1016 ps_submit_proc_list (ps_ptr);
1017 #endif /* KERNEL_LINUX */
1019 return (0);
1020 } /* int ps_read */
1021 #endif /* PROCESSES_HAVE_READ */
1023 void module_register (void)
1024 {
1025 #if PROCESSES_HAVE_READ
1026 #if HAVE_THREAD_INFO | KERNEL_LINUX
1027 plugin_register_config ("processes", ps_config,
1028 config_keys, config_keys_num);
1029 #endif
1030 plugin_register_init ("processes", ps_init);
1031 plugin_register_read ("processes", ps_read);
1032 #endif /* PROCESSES_HAVE_READ */
1033 } /* void module_register */