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-daemon-sysmon.c
23 * @brief system monitoring daemon
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 else if (v_string ==sp->value_type)
205 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "NOT IMPLEMENTED\n");
210 return GNUNET_SYSERR;
216 update_uptime (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
218 struct SysmonProperty *sp = cls;
224 exec_cmd_proc (void *cls, const char *line)
226 struct SysmonProperty *sp = cls;
229 GNUNET_OS_command_stop (sp->cmd_exec_handle);
230 sp->cmd_exec_handle = NULL;
234 switch (sp->value_type) {
236 if (1 != sscanf (line, "%lu", &sp->num_val))
238 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Command output was not a numerical value: `%s'\n", line);
243 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "NOT IMPLEMENTED\n");
249 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property output: `%s'\n", line);
256 exec_cmd (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
258 struct SysmonProperty *sp = cls;
259 GNUNET_assert (NULL != sp->cmd);
261 if (NULL != sp->cmd_exec_handle)
263 GNUNET_OS_command_stop (sp->cmd_exec_handle);
264 sp->cmd_exec_handle = NULL;
267 if (NULL == (sp->cmd_exec_handle = GNUNET_OS_command_run (&exec_cmd_proc, sp,
268 GNUNET_TIME_UNIT_SECONDS,
272 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Property `%s': command `%s' failed\n", sp->desc, sp->cmd);
276 load_property (void *cls,
279 struct GNUNET_CONFIGURATION_Handle *properties = cls;
280 struct SysmonProperty *sp;
283 if (NULL == strstr (section, "sysmon-"))
286 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading section `%s'\n", section);
288 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section, "TYPE"))
290 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
294 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"VALUE"))
296 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
300 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"DESCRIPTION"))
302 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
303 "DESCRIPTION", section);
306 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"CMD"))
308 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Missing value %s in section `%s'\n",
312 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
315 GNUNET_CONFIGURATION_get_value_string (properties, section, "DESCRIPTION", &sp->desc);
318 GNUNET_CONFIGURATION_get_value_string (properties, section, "CMD", &tmp);
320 if (NULL != strchr (tmp, ' '))
322 args = strchr (tmp, ' ');
323 if (strlen (args) > 1)
329 sp->cmd = GNUNET_strdup (tmp);
330 sp->cmd_args = GNUNET_strdup (args);
332 sp->task = &exec_cmd;
335 GNUNET_CONFIGURATION_get_value_string (properties, section, "TYPE", &tmp);
337 if (0 == strcasecmp(tmp, "static"))
339 else if (0 == strcasecmp(tmp, "continous"))
340 sp->type = t_continous;
343 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid value %s for %s in section `%s'\n",
344 tmp, "TYPE", section);
352 GNUNET_CONFIGURATION_get_value_string (properties, section, "VALUE", &tmp);
354 if (0 == strcasecmp(tmp, "numeric"))
355 sp->value_type = v_numeric;
356 else if (0 == strcasecmp(tmp, "string"))
357 sp->value_type = v_string;
360 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid value %s for %s in section `%s'\n",
361 tmp, "VALUE", section);
369 if (GNUNET_NO == GNUNET_CONFIGURATION_have_value (properties, section,"INTERVAL"))
370 sp->interval = GNUNET_TIME_UNIT_MINUTES;
373 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_time (properties, section, "INTERVAL", &sp->interval))
375 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
376 _("Could not parse execution interval for `%s', set to default 60 sec.\n"), section);
377 sp->interval = GNUNET_TIME_UNIT_MINUTES;
381 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loaded property `%s': %s, %s, interval %llu\n",
382 (NULL != sp->desc) ? sp->desc: "<undefined>",
383 (t_continous == sp->type) ? "continious" : "static",
384 (v_numeric == sp->value_type) ? "numeric" : "string",
385 sp->interval.rel_value);
387 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
392 load_default_properties (void)
394 struct SysmonProperty *sp;
395 /* GNUnet version array */
398 /* GNUnet vcs revision */
399 unsigned int revision;
403 if (3 != sscanf (VERSION, "%u.%u.%u", &ver[0], &ver[1], &ver[2]))
408 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not parse version string `%s'\n", VERSION);
414 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Version string is undefined \n");
416 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Version: %u.%u.%u\n", ver[0], ver[1], ver[2]);
418 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
419 sp->desc = GNUNET_strdup ("GNUnet version");
421 sp->value_type = v_numeric;
422 sp->num_val = 100 * ver[0] + 10 * ver[1] + ver[2];
423 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
427 if (1 != sscanf (VCS_VERSION, "svn-%uM", &revision))
430 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not parse revision string `%s'\n", VCS_VERSION);
433 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "VCS revision string is undefined \n");
436 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Revision: %u\n", revision);
438 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
439 sp->desc = GNUNET_strdup ("GNUnet vcs revision");
441 sp->value_type = v_numeric;
442 sp->num_val = (uint64_t) revision;
443 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
446 /* GNUnet startup time */
447 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
448 sp->desc = GNUNET_strdup ("GNUnet startup time");
450 sp->value_type = v_numeric;
451 sp->num_val = (uint64_t) GNUNET_TIME_absolute_get().abs_value;
452 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
455 /* GNUnet sysmon daemon uptime */
456 sp = GNUNET_malloc (sizeof (struct SysmonProperty));
457 sp->desc = GNUNET_strdup ("GNUnet uptime");
458 sp->type = t_continous;
459 sp->value_type = v_numeric;
460 sp->num_val = (uint64_t) 0;
461 sp->interval = GNUNET_TIME_UNIT_SECONDS;
462 sp->task_id = GNUNET_SCHEDULER_NO_TASK;
463 sp->task = update_uptime;
464 GNUNET_CONTAINER_DLL_insert (sp_head, sp_tail, sp);
471 run_property (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
473 struct SysmonProperty *sp = cls;
474 sp->task_id = GNUNET_SCHEDULER_NO_TASK;
475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Running continous property `%s' \n", sp->desc);
477 sp->task_id = GNUNET_SCHEDULER_add_delayed (sp->interval, &run_property, sp);
482 run_properties (void)
484 struct SysmonProperty *sp;
486 for (sp = sp_head; NULL != sp; sp = sp->next)
488 if (t_static == sp->type)
490 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Running static property `%s' \n", sp->desc);
495 if (NULL == sp->task)
500 sp->task_id = GNUNET_SCHEDULER_add_now (&run_property, sp);
507 * Main function that will be run by the scheduler.
510 * @param args remaining command-line arguments
511 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
512 * @param cfg configuration
515 run (void *cls, char *const *args, const char *cfgfile,
516 const struct GNUNET_CONFIGURATION_Handle *mycfg)
518 struct GNUNET_CONFIGURATION_Handle *properties;
521 end_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task, NULL);
524 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "sysdaemon starting ... \n");
526 if (GNUNET_SYSERR ==GNUNET_CONFIGURATION_get_value_filename (mycfg, "sysmon", "CFGFILE", &file))
528 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Sysmon configuration file not set, exit! \n");
534 properties = GNUNET_CONFIGURATION_create();
535 if (NULL == properties)
542 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_load (properties, file))
545 GNUNET_CONFIGURATION_destroy (properties);
552 GNUNET_CONFIGURATION_iterate_sections (properties, &load_property, properties);
554 GNUNET_CONFIGURATION_destroy (properties);
556 /* Creating statistics */
557 stats = GNUNET_STATISTICS_create ("sysmon", mycfg);
566 /* load properties */
567 if (GNUNET_SYSERR == load_default_properties ())
576 if (GNUNET_SYSERR == run_properties ())
590 * @param argc number of arguments from the command line
591 * @param argv command line arguments
592 * @return 0 ok, 1 on error
595 main (int argc, char *const *argv)
597 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
598 GNUNET_GETOPT_OPTION_END
600 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
604 GNUNET_PROGRAM_run (argc, argv, "gnunet-daemon-sysmon",
605 gettext_noop ("GNUnet system monitoring and information daemon"), options, &run,
607 GNUNET_free ((void*) argv);
611 /* end of gnunet-daemon-sysmon.c */