2 This file is part of GNUnet.
3 (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file sysmon/gnunet-service-sysmon.c
23 * @brief system monitoring service
24 * @author Matthias Wachs
27 #include "gnunet_util_lib.h"
28 #include "gnunet_statistics_service.h"
50 * A system property to monitor
55 * Next element in in the DLL
57 struct SysmonProperty *next;
60 * Previous element in in the DLL
62 struct SysmonProperty *prev;
65 * Description used for statistics valuesd
82 struct GNUNET_TIME_Relative interval;
95 * Command execution handle
97 void * cmd_exec_handle;
112 GNUNET_SCHEDULER_TaskIdentifier task_id;
117 GNUNET_SCHEDULER_Task task;
127 * Configuration handle
129 const struct GNUNET_CONFIGURATION_Handle *cfg;
135 struct GNUNET_STATISTICS_Handle *stats;
140 GNUNET_SCHEDULER_TaskIdentifier end_task;
142 struct SysmonProperty *sp_head;
143 struct SysmonProperty *sp_tail;
146 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
148 struct SysmonProperty *sp;
149 struct SysmonProperty *next;
151 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sysdaemon stopping ... \n");
153 end_task = GNUNET_SCHEDULER_NO_TASK;
157 GNUNET_STATISTICS_destroy (stats, GNUNET_YES);
162 while (NULL != (sp = next))
164 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping `%s' \n", sp->desc);
165 GNUNET_CONTAINER_DLL_remove (sp_head, sp_tail, sp);
167 if (GNUNET_SCHEDULER_NO_TASK != sp->task_id)
169 GNUNET_SCHEDULER_cancel (sp->task_id);
170 sp->task_id = GNUNET_SCHEDULER_NO_TASK;
172 GNUNET_free_non_null (sp->cmd);
173 GNUNET_free_non_null (sp->cmd_args);
174 GNUNET_free (sp->desc);
183 if (GNUNET_SCHEDULER_NO_TASK != end_task)
184 GNUNET_SCHEDULER_cancel (end_task);
185 GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
189 to_lower_str (char * str)
192 for (c = 0; c <= strlen (str); c++)
193 str[c] = tolower(str[c]);
197 put_property (struct SysmonProperty *sp)
199 if (v_numeric ==sp->value_type)
201 /* GNUNET_STATISTICS_set (stats, sp->desc, sp->num_val, GNUNET_NO); */
203 fprintf (stderr, "%s : %s : %llu\n",
204 GNUNET_STRINGS_absolute_time_to_string(GNUNET_TIME_absolute_get()),
205 sp->desc, (unsigned long long) sp->num_val);
207 else if (v_string ==sp->value_type)
209 /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "NOT IMPLEMENTED\n"); */
210 fprintf (stderr, "SYSMON STRING\n");
215 return GNUNET_SYSERR;
221 update_uptime (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
223 struct SysmonProperty *sp = cls;
224 static int first_run = GNUNET_YES;
226 if (GNUNET_YES == first_run)
227 first_run = GNUNET_NO;
229 sp->num_val += sp->interval.rel_value / 1000;
235 exec_cmd_proc (void *cls, const char *line)
237 struct SysmonProperty *sp = cls;
238 unsigned long long tmp;
239 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property output: `%s'\n", line);
242 GNUNET_OS_command_stop (sp->cmd_exec_handle);
243 sp->cmd_exec_handle = NULL;
247 switch (sp->value_type) {
249 if (1 != sscanf (line, "%llu", &tmp))
251 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Command output was not a numerical value: `%s'\n", line);
256 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "NOT IMPLEMENTED\n");
264 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property output: `%s'\n", line);
271 exec_cmd (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
273 struct SysmonProperty *sp = cls;
274 GNUNET_assert (NULL != sp->cmd);
276 if (NULL != sp->cmd_exec_handle)
278 GNUNET_OS_command_stop (sp->cmd_exec_handle);
279 sp->cmd_exec_handle = NULL;
282 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property `%s': command `%s' `%s'\n", sp->desc, sp->cmd, sp->cmd_args);
283 if (NULL == (sp->cmd_exec_handle = GNUNET_OS_command_run (&exec_cmd_proc, sp,
284 GNUNET_TIME_UNIT_SECONDS,
288 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property `%s': command `%s' failed\n", sp->desc, sp->cmd);
292 load_property (void *cls,
295 struct GNUNET_CONFIGURATION_Handle *properties = cls;
296 struct SysmonProperty *sp;
299 if (NULL == strstr (section, "sysmon-"))
302 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading section `%s'\n", section);
304 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section, "TYPE"))
306 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
310 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"VALUE"))
312 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
316 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"DESCRIPTION"))
318 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
319 "DESCRIPTION", section);
322 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"CMD"))
324 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
328 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
331 GNUNET_CONFIGURATION_get_value_string (properties, section, "DESCRIPTION", &sp->desc);
334 GNUNET_CONFIGURATION_get_value_string (properties, section, "CMD", &tmp);
336 if (NULL != strchr (tmp, ' '))
338 args = strchr (tmp, ' ');
339 if (strlen (args) > 1)
345 sp->cmd = GNUNET_strdup (tmp);
346 sp->cmd_args = GNUNET_strdup (args);
348 sp->task = &exec_cmd;
351 GNUNET_CONFIGURATION_get_value_string (properties, section, "TYPE", &tmp);
353 if (0 == strcasecmp(tmp, "static"))
355 else if (0 == strcasecmp(tmp, "continous"))
356 sp->type = t_continous;
359 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid value %s for %s in section `%s'\n",
360 tmp, "TYPE", section);
368 GNUNET_CONFIGURATION_get_value_string (properties, section, "VALUE", &tmp);
370 if (0 == strcasecmp(tmp, "numeric"))
371 sp->value_type = v_numeric;
372 else if (0 == strcasecmp(tmp, "string"))
373 sp->value_type = v_string;
376 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid value %s for %s in section `%s'\n",
377 tmp, "VALUE", section);
385 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"INTERVAL"))
386 sp->interval = GNUNET_TIME_UNIT_MINUTES;
389 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_time (properties, section, "INTERVAL", &sp->interval))
391 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
392 _("Could not parse execution interval for `%s', set to default 60 sec.\n"), section);
393 sp->interval = GNUNET_TIME_UNIT_MINUTES;
397 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loaded property `%s': %s, %s, interval %llu\n",
398 (NULL != sp->desc) ? sp->desc: "<undefined>",
399 (t_continous == sp->type) ? "continious" : "static",
400 (v_numeric == sp->value_type) ? "numeric" : "string",
401 sp->interval.rel_value);
403 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
408 load_default_properties (void)
410 struct SysmonProperty *sp;
411 /* GNUnet version array */
414 /* GNUnet vcs revision */
415 unsigned int revision;
418 if (3 != sscanf (VERSION, "%u.%u.%u", &ver[0], &ver[1], &ver[2]))
423 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not parse version string `%s'\n", VERSION);
429 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Version string is undefined \n");
431 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Version: %u.%u.%u\n", ver[0], ver[1], ver[2]);
433 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
434 sp->desc = GNUNET_strdup ("GNUnet version");
436 sp->value_type = v_numeric;
437 sp->num_val = 100 * ver[0] + 10 * ver[1] + ver[2];
438 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
441 if (1 != sscanf (VCS_VERSION, "svn-%uM", &revision))
444 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not parse revision string `%s'\n", VCS_VERSION);
447 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "VCS revision string is undefined \n");
450 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Revision: %u\n", revision);
451 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
452 sp->desc = GNUNET_strdup ("GNUnet vcs revision");
454 sp->value_type = v_numeric;
455 sp->num_val = (uint64_t) revision;
456 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
459 /* GNUnet startup time */
460 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
461 sp->desc = GNUNET_strdup ("GNUnet startup time");
463 sp->value_type = v_numeric;
464 sp->num_val = (uint64_t) GNUNET_TIME_absolute_get().abs_value;
465 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
468 /* GNUnet sysmon daemon uptime in seconds */
469 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
470 sp->desc = GNUNET_strdup ("GNUnet uptime");
471 sp->type = t_continous;
472 sp->value_type = v_numeric;
473 sp->num_val = (uint64_t) 0;
474 sp->interval = GNUNET_TIME_UNIT_MINUTES;
475 sp->task_id = GNUNET_SCHEDULER_NO_TASK;
476 sp->task = update_uptime;
477 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
483 run_property (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
485 struct SysmonProperty *sp = cls;
486 sp->task_id = GNUNET_SCHEDULER_NO_TASK;
487 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Running continous property `%s' \n", sp->desc);
489 sp->task_id = GNUNET_SCHEDULER_add_delayed (sp->interval, &run_property, sp);
494 run_properties (void)
496 struct SysmonProperty *sp;
498 for (sp = sp_head; NULL != sp; sp = sp->next)
500 if (t_static == sp->type)
502 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Running static property `%s' \n", sp->desc);
507 if (NULL == sp->task)
512 sp->task_id = GNUNET_SCHEDULER_add_now (&run_property, sp);
520 * Task run during shutdown.
526 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
528 /* FIXME: do clean up here */
533 * Process template requests.
536 * @param server the initialized server
537 * @param mycfg configuration to use
540 run (void *cls, struct GNUNET_SERVER_Handle *server,
541 const struct GNUNET_CONFIGURATION_Handle *mycfg)
543 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
544 /* FIXME: add handlers here! */
547 /* FIXME: do setup here */
548 GNUNET_SERVER_add_handlers (server, handlers);
549 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
552 struct GNUNET_CONFIGURATION_Handle *properties;
555 end_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task, NULL);
558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sysdaemon starting ... \n");
560 if (GNUNET_SYSERR ==GNUNET_CONFIGURATION_get_value_filename (mycfg, "sysmon", "CFGFILE", &file))
562 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Sysmon configuration file not set, exit! \n");
568 properties = GNUNET_CONFIGURATION_create();
569 if (NULL == properties)
576 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_load (properties, file))
579 GNUNET_CONFIGURATION_destroy (properties);
586 GNUNET_CONFIGURATION_iterate_sections (properties, &load_property, properties);
588 GNUNET_CONFIGURATION_destroy (properties);
590 /* Creating statistics */
591 stats = GNUNET_STATISTICS_create ("sysmon", mycfg);
600 /* load properties */
601 if (GNUNET_SYSERR == load_default_properties ())
610 if (GNUNET_SYSERR == run_properties ())
621 * The main function for the template service.
623 * @param argc number of arguments from the command line
624 * @param argv command line arguments
625 * @return 0 ok, 1 on error
628 main (int argc, char *const *argv)
631 GNUNET_SERVICE_run (argc, argv, "sysmon",
632 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
635 /* end of gnunet-service-sysmon.c */