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 statistics/gnunet-statistics.c
23 * @brief tool to obtain statistics
24 * @author Christian Grothoff
25 * @author Igor Wronsky
28 #include "gnunet_getopt_lib.h"
29 #include "gnunet_program_lib.h"
30 #include "gnunet_util_lib.h"
31 #include "gnunet_statistics_service.h"
32 #include "statistics.h"
34 #define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
42 * Set to subsystem that we're going to get stats for (or NULL for all).
44 static char *subsystem;
47 * Set to the specific stat value that we are after (or NULL for all).
52 * Make the value that is being set persistent.
54 static int persistent;
57 * Watch value continuously
69 static char *remote_host;
74 static unsigned long long remote_port;
79 static unsigned long long set_val;
88 * Callback function to process statistic values.
91 * @param subsystem name of subsystem that created the statistic
92 * @param name the name of the datum
93 * @param value the current value
94 * @param is_persistent #GNUNET_YES if the value is persistent, #GNUNET_NO if not
95 * @return #GNUNET_OK to continue, #GNUNET_SYSERR to abort iteration
98 printer (void *cls, const char *subsystem, const char *name, uint64_t value,
101 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get();
102 const char * now_str;
104 if (quiet == GNUNET_NO)
106 if (GNUNET_YES == watch)
108 now_str = GNUNET_STRINGS_absolute_time_to_string(now);
109 FPRINTF (stdout, "%24s %s%12s %50s: %16llu \n",
111 is_persistent ? "!" : " ",
112 subsystem, _(name), (unsigned long long) value);
116 FPRINTF (stdout, "%s%12s %50s: %16llu \n",
117 is_persistent ? "!" : " ",
118 subsystem, _(name), (unsigned long long) value);
122 FPRINTF (stdout, "%llu\n", (unsigned long long) value);
129 * Function called last by the statistics code.
132 * @param success #GNUNET_OK if statistics were
133 * successfully obtained, #GNUNET_SYSERR if not.
136 cleanup (void *cls, int success)
139 if (success != GNUNET_OK)
141 if (NULL == remote_host)
142 FPRINTF (stderr, "%s", _("Failed to obtain statistics.\n"));
144 FPRINTF (stderr, _("Failed to obtain statistics from host `%s:%llu'\n"),
145 remote_host, remote_port);
148 GNUNET_SCHEDULER_shutdown ();
153 * Function run on shutdown to clean up.
155 * @param cls the statistics handle
156 * @param tc scheduler context
159 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
161 struct GNUNET_STATISTICS_Handle *h = cls;
165 if ( (GNUNET_YES == watch) &&
166 (NULL != subsystem) &&
168 GNUNET_assert (GNUNET_OK ==
169 GNUNET_STATISTICS_watch_cancel (h, subsystem, name, &printer, h));
170 GNUNET_STATISTICS_destroy (h, GNUNET_NO);
176 * Main task that does the actual work.
178 * @param cls closure with our configuration
179 * @param tc schedueler context
182 main_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
184 const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
185 struct GNUNET_STATISTICS_Handle *h;
189 if (subsystem == NULL)
191 FPRINTF (stderr, "%s", _("Missing argument: subsystem \n"));
197 FPRINTF (stderr, "%s", _("Missing argument: name\n"));
201 h = GNUNET_STATISTICS_create (subsystem, cfg);
207 GNUNET_STATISTICS_set (h, name, (uint64_t) set_val, persistent);
208 GNUNET_STATISTICS_destroy (h, GNUNET_YES);
212 if (NULL == (h = GNUNET_STATISTICS_create ("gnunet-statistics", cfg)))
217 if (GNUNET_NO == watch)
220 GNUNET_STATISTICS_get (h, subsystem, name, GET_TIMEOUT, &cleanup,
222 cleanup (h, GNUNET_SYSERR);
226 if ((NULL == subsystem) || (NULL == name))
228 printf (_("No subsystem or name given\n"));
229 GNUNET_STATISTICS_destroy (h, GNUNET_NO);
234 if (GNUNET_OK != GNUNET_STATISTICS_watch (h, subsystem, name, &printer, h))
236 fprintf (stderr, _("Failed to initialize watch routine\n"));
237 GNUNET_SCHEDULER_add_now (&shutdown_task, h);
241 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
248 * Function called with th test result to see if the resolver is
251 * @param cls closure with our configuration
252 * @param result #GNUNET_YES if the resolver is running
255 resolver_test_task (void *cls,
258 struct GNUNET_CONFIGURATION_Handle *cfg = cls;
260 if (GNUNET_YES != result)
263 _("Trying to connect to remote host, but service `%s' is not running\n"), "resolver");
266 /* connect to a remote host */
267 if (0 == remote_port)
269 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (cfg, "statistics", "PORT", &remote_port))
271 FPRINTF (stderr, _("A port is required to connect to host `%s'\n"), remote_host);
275 else if (65535 <= remote_port)
278 _("A port has to be between 1 and 65535 to connect to host `%s'\n"), remote_host);
282 /* Manipulate configuration */
283 GNUNET_CONFIGURATION_set_value_string (cfg,
284 "statistics", "UNIXPATH", "");
285 GNUNET_CONFIGURATION_set_value_string (cfg,
286 "statistics", "HOSTNAME", remote_host);
287 GNUNET_CONFIGURATION_set_value_number (cfg,
288 "statistics", "PORT", remote_port);
289 GNUNET_SCHEDULER_add_now (&main_task, cfg);
294 * Main function that will be run by the scheduler.
297 * @param args remaining command-line arguments
298 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
299 * @param cfg configuration
302 run (void *cls, char *const *args, const char *cfgfile,
303 const struct GNUNET_CONFIGURATION_Handle *cfg)
305 set_value = GNUNET_NO;
308 if (1 != SSCANF (args[0], "%llu", &set_val))
310 FPRINTF (stderr, _("Invalid argument `%s'\n"), args[0]);
314 set_value = GNUNET_YES;
316 if (NULL != remote_host)
317 GNUNET_CLIENT_service_test ("resolver", cfg, GNUNET_TIME_UNIT_SECONDS,
318 &resolver_test_task, (void *) cfg);
320 GNUNET_SCHEDULER_add_now (&main_task, (void *) cfg);
325 * The main function to obtain statistics in GNUnet.
327 * @param argc number of arguments from the command line
328 * @param argv command line arguments
329 * @return 0 ok, 1 on error
332 main (int argc, char *const *argv)
334 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
335 {'n', "name", "NAME",
336 gettext_noop ("limit output to statistics for the given NAME"), 1,
337 &GNUNET_GETOPT_set_string, &name},
338 {'p', "persistent", NULL,
339 gettext_noop ("make the value being set persistent"), 0,
340 &GNUNET_GETOPT_set_one, &persistent},
341 {'s', "subsystem", "SUBSYSTEM",
342 gettext_noop ("limit output to the given SUBSYSTEM"), 1,
343 &GNUNET_GETOPT_set_string, &subsystem},
345 gettext_noop ("just print the statistics value"), 0,
346 &GNUNET_GETOPT_set_one, &quiet},
348 gettext_noop ("watch value continuously"), 0,
349 &GNUNET_GETOPT_set_one, &watch},
350 {'r', "remote", NULL,
351 gettext_noop ("connect to remote host"), 1,
352 &GNUNET_GETOPT_set_string, &remote_host},
354 gettext_noop ("port for remote host"), 1,
355 &GNUNET_GETOPT_set_uint, &remote_port},
356 GNUNET_GETOPT_OPTION_END
360 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
364 GNUNET_PROGRAM_run (argc, argv, "gnunet-statistics [options [value]]",
366 ("Print statistics about GNUnet operations."),
367 options, &run, NULL)) ? ret : 1;
368 GNUNET_free_non_null (remote_host);
369 GNUNET_free ((void*) argv);
373 /* end of gnunet-statistics.c */