1 /**
2 * collectd - src/processes.c
3 * Copyright (C) 2005 Lyonel Vincent
4 * Copyright (C) 2006-2008 Florian Forster (Mach code)
5 * Copyright (C) 2008 Oleg King
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 * Authors:
22 * Lyonel Vincent <lyonel at ezix.org>
23 * Florian octo Forster <octo at verplant.org>
24 * Oleg King <king2 at kaluga.ru>
25 **/
27 #include "collectd.h"
28 #include "common.h"
29 #include "plugin.h"
30 #include "configfile.h"
32 /* Include header files for the mach system, if they exist.. */
33 #if HAVE_THREAD_INFO
34 # if HAVE_MACH_MACH_INIT_H
35 # include <mach/mach_init.h>
36 # endif
37 # if HAVE_MACH_HOST_PRIV_H
38 # include <mach/host_priv.h>
39 # endif
40 # if HAVE_MACH_MACH_ERROR_H
41 # include <mach/mach_error.h>
42 # endif
43 # if HAVE_MACH_MACH_HOST_H
44 # include <mach/mach_host.h>
45 # endif
46 # if HAVE_MACH_MACH_PORT_H
47 # include <mach/mach_port.h>
48 # endif
49 # if HAVE_MACH_MACH_TYPES_H
50 # include <mach/mach_types.h>
51 # endif
52 # if HAVE_MACH_MESSAGE_H
53 # include <mach/message.h>
54 # endif
55 # if HAVE_MACH_PROCESSOR_SET_H
56 # include <mach/processor_set.h>
57 # endif
58 # if HAVE_MACH_TASK_H
59 # include <mach/task.h>
60 # endif
61 # if HAVE_MACH_THREAD_ACT_H
62 # include <mach/thread_act.h>
63 # endif
64 # if HAVE_MACH_VM_REGION_H
65 # include <mach/vm_region.h>
66 # endif
67 # if HAVE_MACH_VM_MAP_H
68 # include <mach/vm_map.h>
69 # endif
70 # if HAVE_MACH_VM_PROT_H
71 # include <mach/vm_prot.h>
72 # endif
73 # if HAVE_SYS_SYSCTL_H
74 # include <sys/sysctl.h>
75 # endif
76 /* #endif HAVE_THREAD_INFO */
78 #elif KERNEL_LINUX
79 # if HAVE_LINUX_CONFIG_H
80 # include <linux/config.h>
81 # endif
82 # ifndef CONFIG_HZ
83 # define CONFIG_HZ 100
84 # endif
85 /* #endif KERNEL_LINUX */
87 #elif HAVE_KVM_H
88 # include <kvm.h>
89 # include <sys/user.h>
90 # include <sys/proc.h>
91 # if HAVE_SYS_SYSCTL_H
92 # include <sys/sysctl.h>
93 # endif
94 /* #endif HAVE_KVM_H */
96 #else
97 # error "No applicable input method."
98 #endif
100 #if HAVE_REGEX_H
101 # include <regex.h>
102 #endif
104 #define BUFSIZE 256
106 static const char *config_keys[] =
107 {
108 "Process",
109 "ProcessMatch",
110 NULL
111 };
112 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
114 typedef struct procstat_entry_s
115 {
116 unsigned long id;
117 unsigned long age;
119 unsigned long num_proc;
120 unsigned long num_lwp;
121 unsigned long vmem_rss;
123 unsigned long vmem_minflt;
124 unsigned long vmem_majflt;
125 unsigned long vmem_minflt_counter;
126 unsigned long vmem_majflt_counter;
128 unsigned long cpu_user;
129 unsigned long cpu_system;
130 unsigned long cpu_user_counter;
131 unsigned long cpu_system_counter;
133 struct procstat_entry_s *next;
134 } procstat_entry_t;
136 #define PROCSTAT_NAME_LEN 256
137 typedef struct procstat
138 {
139 char name[PROCSTAT_NAME_LEN];
140 #if HAVE_REGEX_H
141 regex_t *re;
142 #endif
144 unsigned long num_proc;
145 unsigned long num_lwp;
146 unsigned long vmem_rss;
148 unsigned long vmem_minflt_counter;
149 unsigned long vmem_majflt_counter;
151 unsigned long cpu_user_counter;
152 unsigned long cpu_system_counter;
154 struct procstat *next;
155 struct procstat_entry_s *instances;
156 } procstat_t;
158 static procstat_t *list_head_g = NULL;
160 #if HAVE_THREAD_INFO
161 static mach_port_t port_host_self;
162 static mach_port_t port_task_self;
164 static processor_set_name_array_t pset_list;
165 static mach_msg_type_number_t pset_list_len;
166 /* #endif HAVE_THREAD_INFO */
168 #elif KERNEL_LINUX
169 static long pagesize_g;
170 #endif /* KERNEL_LINUX */
172 /* put name of process from config to list_head_g tree
173 list_head_g is a list of 'procstat_t' structs with
174 processes names we want to watch */
175 static void ps_list_register (const char *name, const char *regexp)
176 {
177 procstat_t *new;
178 procstat_t *ptr;
179 int status;
181 new = (procstat_t *) malloc (sizeof (procstat_t));
182 if (new == NULL)
183 {
184 ERROR ("processes plugin: ps_list_register: malloc failed.");
185 return;
186 }
187 memset (new, 0, sizeof (procstat_t));
188 sstrncpy (new->name, name, sizeof (new->name));
190 #if HAVE_REGEX_H
191 if (regexp != NULL)
192 {
193 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
194 new->re = (regex_t *) malloc (sizeof (regex_t));
195 if (new->re == NULL)
196 {
197 ERROR ("processes plugin: ps_list_register: malloc failed.");
198 sfree (new);
199 return;
200 }
202 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
203 if (status != 0)
204 {
205 DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
206 sfree(new->re);
207 return;
208 }
209 }
210 #else
211 if (regexp != NULL)
212 {
213 ERROR ("processes plugin: ps_list_register: "
214 "Regular expression \"%s\" found in config "
215 "file, but support for regular expressions "
216 "has been dispabled at compile time.",
217 regexp);
218 sfree (new);
219 return;
220 }
221 #endif
223 for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
224 {
225 if (strcmp (ptr->name, name) == 0)
226 {
227 WARNING ("processes plugin: You have configured more "
228 "than one `Process' or "
229 "`ProcessMatch' with the same name. "
230 "All but the first setting will be "
231 "ignored.");
232 sfree (new->re);
233 sfree (new);
234 return;
235 }
237 if (ptr->next == NULL)
238 break;
239 }
241 if (ptr == NULL)
242 list_head_g = new;
243 else
244 ptr->next = new;
245 } /* void ps_list_register */
247 /* try to match name against entry, returns 1 if success */
248 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
249 {
250 #if HAVE_REGEX_H
251 if (ps->re != NULL)
252 {
253 int status;
254 const char *str;
256 str = cmdline;
257 if ((str == NULL) || (str[0] == 0))
258 str = name;
260 assert (str != NULL);
262 status = regexec (ps->re, str,
263 /* nmatch = */ 0,
264 /* pmatch = */ NULL,
265 /* eflags = */ 0);
266 if (status == 0)
267 return (1);
268 }
269 else
270 #endif
271 if (strcmp (ps->name, name) == 0)
272 return (1);
274 return (0);
275 } /* int ps_list_match */
277 /* add process entry to 'instances' of process 'name' (or refresh it) */
278 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
279 {
280 procstat_t *ps;
281 procstat_entry_t *pse;
283 if (entry->id == 0)
284 return;
286 for (ps = list_head_g; ps != NULL; ps = ps->next)
287 {
288 if ((ps_list_match (name, cmdline, ps)) == 0)
289 continue;
291 for (pse = ps->instances; pse != NULL; pse = pse->next)
292 if ((pse->id == entry->id) || (pse->next == NULL))
293 break;
295 if ((pse == NULL) || (pse->id != entry->id))
296 {
297 procstat_entry_t *new;
299 new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
300 if (new == NULL)
301 return;
302 memset (new, 0, sizeof (procstat_entry_t));
303 new->id = entry->id;
305 if (pse == NULL)
306 ps->instances = new;
307 else
308 pse->next = new;
310 pse = new;
311 }
313 pse->age = 0;
314 pse->num_proc = entry->num_proc;
315 pse->num_lwp = entry->num_lwp;
316 pse->vmem_rss = entry->vmem_rss;
318 ps->num_proc += pse->num_proc;
319 ps->num_lwp += pse->num_lwp;
320 ps->vmem_rss += pse->vmem_rss;
322 if ((entry->vmem_minflt_counter == 0)
323 && (entry->vmem_majflt_counter == 0))
324 {
325 pse->vmem_minflt_counter += entry->vmem_minflt;
326 pse->vmem_minflt = entry->vmem_minflt;
328 pse->vmem_majflt_counter += entry->vmem_majflt;
329 pse->vmem_majflt = entry->vmem_majflt;
330 }
331 else
332 {
333 if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
334 {
335 pse->vmem_minflt = entry->vmem_minflt_counter
336 + (ULONG_MAX - pse->vmem_minflt_counter);
337 }
338 else
339 {
340 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
341 }
342 pse->vmem_minflt_counter = entry->vmem_minflt_counter;
344 if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
345 {
346 pse->vmem_majflt = entry->vmem_majflt_counter
347 + (ULONG_MAX - pse->vmem_majflt_counter);
348 }
349 else
350 {
351 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
352 }
353 pse->vmem_majflt_counter = entry->vmem_majflt_counter;
354 }
356 ps->vmem_minflt_counter += pse->vmem_minflt;
357 ps->vmem_majflt_counter += pse->vmem_majflt;
359 if ((entry->cpu_user_counter == 0)
360 && (entry->cpu_system_counter == 0))
361 {
362 pse->cpu_user_counter += entry->cpu_user;
363 pse->cpu_user = entry->cpu_user;
365 pse->cpu_system_counter += entry->cpu_system;
366 pse->cpu_system = entry->cpu_system;
367 }
368 else
369 {
370 if (entry->cpu_user_counter < pse->cpu_user_counter)
371 {
372 pse->cpu_user = entry->cpu_user_counter
373 + (ULONG_MAX - pse->cpu_user_counter);
374 }
375 else
376 {
377 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
378 }
379 pse->cpu_user_counter = entry->cpu_user_counter;
381 if (entry->cpu_system_counter < pse->cpu_system_counter)
382 {
383 pse->cpu_system = entry->cpu_system_counter
384 + (ULONG_MAX - pse->cpu_system_counter);
385 }
386 else
387 {
388 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
389 }
390 pse->cpu_system_counter = entry->cpu_system_counter;
391 }
393 ps->cpu_user_counter += pse->cpu_user;
394 ps->cpu_system_counter += pse->cpu_system;
395 }
396 }
398 /* remove old entries from instances of processes in list_head_g */
399 static void ps_list_reset (void)
400 {
401 procstat_t *ps;
402 procstat_entry_t *pse;
403 procstat_entry_t *pse_prev;
405 for (ps = list_head_g; ps != NULL; ps = ps->next)
406 {
407 ps->num_proc = 0;
408 ps->num_lwp = 0;
409 ps->vmem_rss = 0;
411 pse_prev = NULL;
412 pse = ps->instances;
413 while (pse != NULL)
414 {
415 if (pse->age > 10)
416 {
417 DEBUG ("Removing this procstat entry cause it's too old: "
418 "id = %lu; name = %s;",
419 pse->id, ps->name);
421 if (pse_prev == NULL)
422 {
423 ps->instances = pse->next;
424 free (pse);
425 pse = ps->instances;
426 }
427 else
428 {
429 pse_prev->next = pse->next;
430 free (pse);
431 pse = pse_prev->next;
432 }
433 }
434 else
435 {
436 pse->age++;
437 pse_prev = pse;
438 pse = pse->next;
439 }
440 } /* while (pse != NULL) */
441 } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
442 }
444 /* put all pre-defined 'Process' names from config to list_head_g tree */
445 static int ps_config (const char *key, const char *value)
446 {
447 if (strcasecmp (key, "Process") == 0)
448 {
449 ps_list_register (value, NULL);
450 }
451 else if (strcasecmp (key, "ProcessMatch") == 0)
452 {
453 char *new_val;
454 char *fields[3];
455 int fields_num;
457 new_val = strdup (value);
458 if (new_val == NULL)
459 return (1);
460 fields_num = strsplit (new_val, fields,
461 STATIC_ARRAY_SIZE (fields));
462 if (fields_num != 2)
463 {
464 sfree (new_val);
465 return (1);
466 }
467 ps_list_register (fields[0], fields[1]);
468 sfree (new_val);
469 }
470 else
471 {
472 return (-1);
473 }
475 return (0);
476 }
478 static int ps_init (void)
479 {
480 #if HAVE_THREAD_INFO
481 kern_return_t status;
483 port_host_self = mach_host_self ();
484 port_task_self = mach_task_self ();
486 if (pset_list != NULL)
487 {
488 vm_deallocate (port_task_self,
489 (vm_address_t) pset_list,
490 pset_list_len * sizeof (processor_set_t));
491 pset_list = NULL;
492 pset_list_len = 0;
493 }
495 if ((status = host_processor_sets (port_host_self,
496 &pset_list,
497 &pset_list_len)) != KERN_SUCCESS)
498 {
499 ERROR ("host_processor_sets failed: %s\n",
500 mach_error_string (status));
501 pset_list = NULL;
502 pset_list_len = 0;
503 return (-1);
504 }
505 /* #endif HAVE_THREAD_INFO */
507 #elif KERNEL_LINUX
508 pagesize_g = sysconf(_SC_PAGESIZE);
509 DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
510 pagesize_g, CONFIG_HZ);
511 #endif /* KERNEL_LINUX */
513 return (0);
514 } /* int ps_init */
516 /* submit global state (e.g.: qty of zombies, running, etc..) */
517 static void ps_submit_state (const char *state, double value)
518 {
519 value_t values[1];
520 value_list_t vl = VALUE_LIST_INIT;
522 values[0].gauge = value;
524 vl.values = values;
525 vl.values_len = 1;
526 vl.time = time (NULL);
527 strcpy (vl.host, hostname_g);
528 strcpy (vl.plugin, "processes");
529 strcpy (vl.plugin_instance, "");
530 strcpy (vl.type, "ps_state");
531 sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
533 plugin_dispatch_values (&vl);
534 }
536 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
537 static void ps_submit_proc_list (procstat_t *ps)
538 {
539 value_t values[2];
540 value_list_t vl = VALUE_LIST_INIT;
542 vl.values = values;
543 vl.values_len = 2;
544 vl.time = time (NULL);
545 strcpy (vl.host, hostname_g);
546 strcpy (vl.plugin, "processes");
547 sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
549 strcpy (vl.type, "ps_rss");
550 vl.values[0].gauge = ps->vmem_rss;
551 vl.values_len = 1;
552 plugin_dispatch_values (&vl);
554 strcpy (vl.type, "ps_cputime");
555 vl.values[0].counter = ps->cpu_user_counter;
556 vl.values[1].counter = ps->cpu_system_counter;
557 vl.values_len = 2;
558 plugin_dispatch_values (&vl);
560 strcpy (vl.type, "ps_count");
561 vl.values[0].gauge = ps->num_proc;
562 vl.values[1].gauge = ps->num_lwp;
563 vl.values_len = 2;
564 plugin_dispatch_values (&vl);
566 strcpy (vl.type, "ps_pagefaults");
567 vl.values[0].counter = ps->vmem_minflt_counter;
568 vl.values[1].counter = ps->vmem_majflt_counter;
569 vl.values_len = 2;
570 plugin_dispatch_values (&vl);
572 DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; vmem_rss = %lu; "
573 "vmem_minflt_counter = %lu; vmem_majflt_counter = %lu; "
574 "cpu_user_counter = %lu; cpu_system_counter = %lu;",
575 ps->name, ps->num_proc, ps->num_lwp, ps->vmem_rss,
576 ps->vmem_minflt_counter, ps->vmem_majflt_counter,
577 ps->cpu_user_counter, ps->cpu_system_counter);
578 } /* void ps_submit_proc_list */
580 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
581 #if KERNEL_LINUX
582 static int *ps_read_tasks (int pid)
583 {
584 int *list = NULL;
585 int list_size = 1; /* size of allocated space, in elements */
586 int list_len = 0; /* number of currently used elements */
588 char dirname[64];
589 DIR *dh;
590 struct dirent *ent;
592 ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
594 if ((dh = opendir (dirname)) == NULL)
595 {
596 DEBUG ("Failed to open directory `%s'", dirname);
597 return (NULL);
598 }
600 while ((ent = readdir (dh)) != NULL)
601 {
602 if (!isdigit (ent->d_name[0]))
603 continue;
605 if ((list_len + 1) >= list_size)
606 {
607 int *new_ptr;
608 int new_size = 2 * list_size;
609 /* Comes in sizes: 2, 4, 8, 16, ... */
611 new_ptr = (int *) realloc (list, (size_t) (sizeof (int) * new_size));
612 if (new_ptr == NULL)
613 {
614 if (list != NULL)
615 free (list);
616 ERROR ("processes plugin: "
617 "Failed to allocate more memory.");
618 return (NULL);
619 }
621 list = new_ptr;
622 list_size = new_size;
624 memset (list + list_len, 0, sizeof (int) * (list_size - list_len));
625 }
627 list[list_len] = atoi (ent->d_name);
628 if (list[list_len] != 0)
629 list_len++;
630 }
632 closedir (dh);
634 if (list_len == 0)
635 return (NULL);
637 assert (list_len < list_size);
638 assert (list[list_len] == 0);
640 return (list);
641 } /* int *ps_read_tasks */
643 int ps_read_process (int pid, procstat_t *ps, char *state)
644 {
645 char filename[64];
646 char buffer[1024];
647 FILE *fh;
649 char *fields[64];
650 char fields_len;
652 int *tasks;
653 int i;
655 int ppid;
656 int name_len;
658 long long unsigned cpu_user_counter;
659 long long unsigned cpu_system_counter;
660 long long unsigned vmem_rss;
662 memset (ps, 0, sizeof (procstat_t));
664 ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid);
666 if ((fh = fopen (filename, "r")) == NULL)
667 return (-1);
669 if (fgets (buffer, 1024, fh) == NULL)
670 {
671 fclose (fh);
672 return (-1);
673 }
675 fclose (fh);
677 fields_len = strsplit (buffer, fields, 64);
678 if (fields_len < 24)
679 {
680 DEBUG ("processes plugin: ps_read_process (pid = %i):"
681 " `%s' has only %i fields..",
682 (int) pid, filename, fields_len);
683 return (-1);
684 }
686 /* copy the name, strip brackets in the process */
687 name_len = strlen (fields[1]) - 2;
688 if ((fields[1][0] != '(') || (fields[1][name_len + 1] != ')'))
689 {
690 DEBUG ("No brackets found in process name: `%s'", fields[1]);
691 return (-1);
692 }
693 fields[1] = fields[1] + 1;
694 fields[1][name_len] = '\0';
695 strncpy (ps->name, fields[1], PROCSTAT_NAME_LEN);
697 ppid = atoi (fields[3]);
699 *state = fields[2][0];
701 if (*state == 'Z')
702 {
703 ps->num_lwp = 0;
704 ps->num_proc = 0;
705 }
706 else if ((tasks = ps_read_tasks (pid)) == NULL)
707 {
708 /* Kernel 2.4 or so */
709 ps->num_lwp = 1;
710 ps->num_proc = 1;
711 }
712 else
713 {
714 ps->num_lwp = 0;
715 ps->num_proc = 1;
716 for (i = 0; tasks[i] != 0; i++)
717 ps->num_lwp++;
719 free (tasks);
720 tasks = NULL;
721 }
723 /* Leave the rest at zero if this is only a zombi */
724 if (ps->num_proc == 0)
725 {
726 DEBUG ("processes plugin: This is only a zombi: pid = %i; "
727 "name = %s;", pid, ps->name);
728 return (0);
729 }
731 cpu_user_counter = atoll (fields[13]);
732 cpu_system_counter = atoll (fields[14]);
733 vmem_rss = atoll (fields[23]);
734 ps->vmem_minflt_counter = atol (fields[9]);
735 ps->vmem_majflt_counter = atol (fields[11]);
737 /* Convert jiffies to useconds */
738 cpu_user_counter = cpu_user_counter * 1000000 / CONFIG_HZ;
739 cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
740 vmem_rss = vmem_rss * pagesize_g;
742 ps->cpu_user_counter = (unsigned long) cpu_user_counter;
743 ps->cpu_system_counter = (unsigned long) cpu_system_counter;
744 ps->vmem_rss = (unsigned long) vmem_rss;
746 /* success */
747 return (0);
748 } /* int ps_read_process (...) */
749 #endif /* KERNEL_LINUX */
751 #if HAVE_THREAD_INFO
752 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
753 {
754 int mib[4];
756 struct kinfo_proc kp;
757 size_t kp_size;
759 mib[0] = CTL_KERN;
760 mib[1] = KERN_PROC;
761 mib[2] = KERN_PROC_PID;
763 if (pid_for_task (t, pid) != KERN_SUCCESS)
764 return (-1);
765 mib[3] = *pid;
767 kp_size = sizeof (kp);
768 if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
769 return (-1);
771 if (name_max_len > (MAXCOMLEN + 1))
772 name_max_len = MAXCOMLEN + 1;
774 strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
775 name[name_max_len - 1] = '\0';
777 DEBUG ("pid = %i; name = %s;", *pid, name);
779 /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
780 * `top' does it, because it is a lot of work and only used when
781 * debugging. -octo */
783 return (0);
784 }
785 #endif /* HAVE_THREAD_INFO */
786 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
788 /* do actual readings from kernel */
789 static int ps_read (void)
790 {
791 #if HAVE_THREAD_INFO
792 kern_return_t status;
794 int pset;
795 processor_set_t port_pset_priv;
797 int task;
798 task_array_t task_list;
799 mach_msg_type_number_t task_list_len;
801 int task_pid;
802 char task_name[MAXCOMLEN + 1];
804 int thread;
805 thread_act_array_t thread_list;
806 mach_msg_type_number_t thread_list_len;
807 thread_basic_info_data_t thread_data;
808 mach_msg_type_number_t thread_data_len;
810 int running = 0;
811 int sleeping = 0;
812 int zombies = 0;
813 int stopped = 0;
814 int blocked = 0;
816 procstat_t *ps;
817 procstat_entry_t pse;
819 ps_list_reset ();
821 /*
822 * The Mach-concept is a little different from the traditional UNIX
823 * concept: All the work is done in threads. Threads are contained in
824 * `tasks'. Therefore, `task status' doesn't make much sense, since
825 * it's actually a `thread status'.
826 * Tasks are assigned to sets of processors, so that's where you go to
827 * get a list.
828 */
829 for (pset = 0; pset < pset_list_len; pset++)
830 {
831 if ((status = host_processor_set_priv (port_host_self,
832 pset_list[pset],
833 &port_pset_priv)) != KERN_SUCCESS)
834 {
835 ERROR ("host_processor_set_priv failed: %s\n",
836 mach_error_string (status));
837 continue;
838 }
840 if ((status = processor_set_tasks (port_pset_priv,
841 &task_list,
842 &task_list_len)) != KERN_SUCCESS)
843 {
844 ERROR ("processor_set_tasks failed: %s\n",
845 mach_error_string (status));
846 mach_port_deallocate (port_task_self, port_pset_priv);
847 continue;
848 }
850 for (task = 0; task < task_list_len; task++)
851 {
852 ps = NULL;
853 if (mach_get_task_name (task_list[task],
854 &task_pid,
855 task_name, PROCSTAT_NAME_LEN) == 0)
856 {
857 /* search for at least one match */
858 for (ps = list_head_g; ps != NULL; ps = ps->next)
859 /* FIXME: cmdline should be here instead of NULL */
860 if (ps_list_match (task_name, NULL, ps) == 1)
861 break;
862 }
864 /* Collect more detailed statistics for this process */
865 if (ps != NULL)
866 {
867 task_basic_info_data_t task_basic_info;
868 mach_msg_type_number_t task_basic_info_len;
869 task_events_info_data_t task_events_info;
870 mach_msg_type_number_t task_events_info_len;
871 task_absolutetime_info_data_t task_absolutetime_info;
872 mach_msg_type_number_t task_absolutetime_info_len;
874 memset (&pse, '\0', sizeof (pse));
875 pse.id = task_pid;
877 task_basic_info_len = TASK_BASIC_INFO_COUNT;
878 status = task_info (task_list[task],
879 TASK_BASIC_INFO,
880 (task_info_t) &task_basic_info,
881 &task_basic_info_len);
882 if (status != KERN_SUCCESS)
883 {
884 ERROR ("task_info failed: %s",
885 mach_error_string (status));
886 continue; /* with next thread_list */
887 }
889 task_events_info_len = TASK_EVENTS_INFO_COUNT;
890 status = task_info (task_list[task],
891 TASK_EVENTS_INFO,
892 (task_info_t) &task_events_info,
893 &task_events_info_len);
894 if (status != KERN_SUCCESS)
895 {
896 ERROR ("task_info failed: %s",
897 mach_error_string (status));
898 continue; /* with next thread_list */
899 }
901 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
902 status = task_info (task_list[task],
903 TASK_ABSOLUTETIME_INFO,
904 (task_info_t) &task_absolutetime_info,
905 &task_absolutetime_info_len);
906 if (status != KERN_SUCCESS)
907 {
908 ERROR ("task_info failed: %s",
909 mach_error_string (status));
910 continue; /* with next thread_list */
911 }
913 pse.num_proc++;
914 pse.vmem_rss = task_basic_info.resident_size;
916 pse.vmem_minflt_counter = task_events_info.cow_faults;
917 pse.vmem_majflt_counter = task_events_info.faults;
919 pse.cpu_user_counter = task_absolutetime_info.total_user;
920 pse.cpu_system_counter = task_absolutetime_info.total_system;
921 }
923 status = task_threads (task_list[task], &thread_list,
924 &thread_list_len);
925 if (status != KERN_SUCCESS)
926 {
927 /* Apple's `top' treats this case a zombie. It
928 * makes sense to some extend: A `zombie'
929 * thread is nonsense, since the task/process
930 * is dead. */
931 zombies++;
932 DEBUG ("task_threads failed: %s",
933 mach_error_string (status));
934 if (task_list[task] != port_task_self)
935 mach_port_deallocate (port_task_self,
936 task_list[task]);
937 continue; /* with next task_list */
938 }
940 for (thread = 0; thread < thread_list_len; thread++)
941 {
942 thread_data_len = THREAD_BASIC_INFO_COUNT;
943 status = thread_info (thread_list[thread],
944 THREAD_BASIC_INFO,
945 (thread_info_t) &thread_data,
946 &thread_data_len);
947 if (status != KERN_SUCCESS)
948 {
949 ERROR ("thread_info failed: %s",
950 mach_error_string (status));
951 if (task_list[task] != port_task_self)
952 mach_port_deallocate (port_task_self,
953 thread_list[thread]);
954 continue; /* with next thread_list */
955 }
957 if (ps != NULL)
958 pse.num_lwp++;
960 switch (thread_data.run_state)
961 {
962 case TH_STATE_RUNNING:
963 running++;
964 break;
965 case TH_STATE_STOPPED:
966 /* What exactly is `halted'? */
967 case TH_STATE_HALTED:
968 stopped++;
969 break;
970 case TH_STATE_WAITING:
971 sleeping++;
972 break;
973 case TH_STATE_UNINTERRUPTIBLE:
974 blocked++;
975 break;
976 /* There is no `zombie' case here,
977 * since there are no zombie-threads.
978 * There's only zombie tasks, which are
979 * handled above. */
980 default:
981 WARNING ("Unknown thread status: %s",
982 thread_data.run_state);
983 break;
984 } /* switch (thread_data.run_state) */
986 if (task_list[task] != port_task_self)
987 {
988 status = mach_port_deallocate (port_task_self,
989 thread_list[thread]);
990 if (status != KERN_SUCCESS)
991 ERROR ("mach_port_deallocate failed: %s",
992 mach_error_string (status));
993 }
994 } /* for (thread_list) */
996 if ((status = vm_deallocate (port_task_self,
997 (vm_address_t) thread_list,
998 thread_list_len * sizeof (thread_act_t)))
999 != KERN_SUCCESS)
1000 {
1001 ERROR ("vm_deallocate failed: %s",
1002 mach_error_string (status));
1003 }
1004 thread_list = NULL;
1005 thread_list_len = 0;
1007 /* Only deallocate the task port, if it isn't our own.
1008 * Don't know what would happen in that case, but this
1009 * is what Apple's top does.. ;) */
1010 if (task_list[task] != port_task_self)
1011 {
1012 status = mach_port_deallocate (port_task_self,
1013 task_list[task]);
1014 if (status != KERN_SUCCESS)
1015 ERROR ("mach_port_deallocate failed: %s",
1016 mach_error_string (status));
1017 }
1019 if (ps != NULL)
1020 /* FIXME: cmdline should be here instead of NULL */
1021 ps_list_add (task_name, NULL, &pse);
1022 } /* for (task_list) */
1024 if ((status = vm_deallocate (port_task_self,
1025 (vm_address_t) task_list,
1026 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1027 {
1028 ERROR ("vm_deallocate failed: %s",
1029 mach_error_string (status));
1030 }
1031 task_list = NULL;
1032 task_list_len = 0;
1034 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1035 != KERN_SUCCESS)
1036 {
1037 ERROR ("mach_port_deallocate failed: %s",
1038 mach_error_string (status));
1039 }
1040 } /* for (pset_list) */
1042 ps_submit_state ("running", running);
1043 ps_submit_state ("sleeping", sleeping);
1044 ps_submit_state ("zombies", zombies);
1045 ps_submit_state ("stopped", stopped);
1046 ps_submit_state ("blocked", blocked);
1048 for (ps = list_head_g; ps != NULL; ps = ps->next)
1049 ps_submit_proc_list (ps);
1050 /* #endif HAVE_THREAD_INFO */
1052 #elif KERNEL_LINUX
1053 int running = 0;
1054 int sleeping = 0;
1055 int zombies = 0;
1056 int stopped = 0;
1057 int paging = 0;
1058 int blocked = 0;
1060 struct dirent *ent;
1061 DIR *proc;
1062 int pid;
1064 int status;
1065 procstat_t ps;
1066 procstat_entry_t pse;
1067 char state;
1069 procstat_t *ps_ptr;
1071 running = sleeping = zombies = stopped = paging = blocked = 0;
1072 ps_list_reset ();
1074 if ((proc = opendir ("/proc")) == NULL)
1075 {
1076 char errbuf[1024];
1077 ERROR ("Cannot open `/proc': %s",
1078 sstrerror (errno, errbuf, sizeof (errbuf)));
1079 return (-1);
1080 }
1082 while ((ent = readdir (proc)) != NULL)
1083 {
1084 if (!isdigit (ent->d_name[0]))
1085 continue;
1087 if ((pid = atoi (ent->d_name)) < 1)
1088 continue;
1090 status = ps_read_process (pid, &ps, &state);
1091 if (status != 0)
1092 {
1093 DEBUG ("ps_read_process failed: %i", status);
1094 continue;
1095 }
1097 pse.id = pid;
1098 pse.age = 0;
1100 pse.num_proc = ps.num_proc;
1101 pse.num_lwp = ps.num_lwp;
1102 pse.vmem_rss = ps.vmem_rss;
1104 pse.vmem_minflt = 0;
1105 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1106 pse.vmem_majflt = 0;
1107 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1109 pse.cpu_user = 0;
1110 pse.cpu_user_counter = ps.cpu_user_counter;
1111 pse.cpu_system = 0;
1112 pse.cpu_system_counter = ps.cpu_system_counter;
1114 switch (state)
1115 {
1116 case 'R': running++; break;
1117 case 'S': sleeping++; break;
1118 case 'D': blocked++; break;
1119 case 'Z': zombies++; break;
1120 case 'T': stopped++; break;
1121 case 'W': paging++; break;
1122 }
1124 /* FIXME: cmdline should be here instead of NULL */
1125 ps_list_add (ps.name, NULL, &pse);
1126 }
1128 closedir (proc);
1130 ps_submit_state ("running", running);
1131 ps_submit_state ("sleeping", sleeping);
1132 ps_submit_state ("zombies", zombies);
1133 ps_submit_state ("stopped", stopped);
1134 ps_submit_state ("paging", paging);
1135 ps_submit_state ("blocked", blocked);
1137 for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1138 ps_submit_proc_list (ps_ptr);
1139 /* #endif KERNEL_LINUX */
1141 #elif HAVE_LIBKVM
1142 int running = 0;
1143 int sleeping = 0;
1144 int zombies = 0;
1145 int stopped = 0;
1146 int blocked = 0;
1147 int idle = 0;
1148 int wait = 0;
1150 kvm_t *kd;
1151 char errbuf[1024];
1152 char cmdline[ARG_MAX];
1153 char *cmdline_ptr;
1154 struct kinfo_proc *procs; /* array of processes */
1155 char **argv;
1156 int count; /* returns number of processes */
1157 int i;
1159 procstat_t *ps_ptr;
1160 procstat_entry_t pse;
1162 ps_list_reset ();
1164 /* Open the kvm interface, get a descriptor */
1165 kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
1166 if (kd == NULL)
1167 {
1168 ERROR ("processes plugin: Cannot open kvm interface: %s",
1169 errbuf);
1170 return (0);
1171 }
1173 /* Get the list of processes. */
1174 procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1175 if (procs == NULL)
1176 {
1177 kvm_close (kd);
1178 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1179 kvm_geterr(kd));
1180 return (0);
1181 }
1183 /* Iterate through the processes in kinfo_proc */
1184 for (i = 0; i < count; i++)
1185 {
1186 /* retrieve the arguments */
1187 cmdline[0] = 0;
1188 cmdline_ptr = NULL;
1190 argv = kvm_getargv (kd, (const struct kinfo_proc *) &(procs[i]), 0);
1191 if (argv != NULL)
1192 {
1193 int status;
1194 int argc;
1196 argc = 0;
1197 while (argv[argc] != NULL)
1198 argc++;
1200 status = strjoin (cmdline, sizeof (cmdline),
1201 argv, argc, " ");
1203 if (status < 0)
1204 {
1205 WARNING ("processes plugin: Command line did "
1206 "not fit into buffer.");
1207 }
1208 else
1209 {
1210 cmdline_ptr = &cmdline[0];
1211 }
1212 }
1214 pse.id = procs[i].ki_pid;
1215 pse.age = 0;
1217 pse.num_proc = 1;
1218 pse.num_lwp = procs[i].ki_numthreads;
1220 pse.vmem_rss = procs[i].ki_rssize * getpagesize();
1221 pse.vmem_minflt = 0;
1222 pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1223 pse.vmem_majflt = 0;
1224 pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1226 pse.cpu_user = 0;
1227 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_sec
1228 * 1000
1229 + procs[i].ki_rusage.ru_utime.tv_usec;
1230 pse.cpu_system = 0;
1231 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_sec
1232 * 1000
1233 + procs[i].ki_rusage.ru_stime.tv_usec;
1235 switch (procs[i].ki_stat)
1236 {
1237 case SSTOP: stopped++; break;
1238 case SSLEEP: sleeping++; break;
1239 case SRUN: running++; break;
1240 case SIDL: idle++; break;
1241 case SWAIT: wait++; break;
1242 case SLOCK: blocked++; break;
1243 case SZOMB: zombies++; break;
1244 }
1246 ps_list_add (procs[i].ki_comm, cmdline_ptr, &pse);
1247 }
1249 kvm_close(kd);
1251 ps_submit_state ("running", running);
1252 ps_submit_state ("sleeping", sleeping);
1253 ps_submit_state ("zombies", zombies);
1254 ps_submit_state ("stopped", stopped);
1255 ps_submit_state ("blocked", blocked);
1256 ps_submit_state ("idle", idle);
1257 ps_submit_state ("wait", wait);
1259 for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1260 ps_submit_proc_list (ps_ptr);
1261 #endif /* HAVE_LIBKVM */
1263 return (0);
1264 } /* int ps_read */
1266 void module_register (void)
1267 {
1268 plugin_register_config ("processes", ps_config,
1269 config_keys, config_keys_num);
1270 plugin_register_init ("processes", ps_init);
1271 plugin_register_read ("processes", ps_read);
1272 } /* void module_register */