2 This file is part of GNUnet.
3 (C) 2012 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 fs/gnunet-fs-profiler.c
23 * @brief tool to benchmark/profile file-sharing
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_testbed_service.h"
36 * Data file with the hosts for the testbed.
38 static char *host_filename;
41 * Number of peers to run in the experiment.
43 static unsigned int num_peers;
46 * After how long do we abort the test?
48 static struct GNUNET_TIME_Relative timeout;
51 * Handle to the task run during termination.
53 static GNUNET_SCHEDULER_TaskIdentifier terminate_taskid;
57 * Function called after we've collected the statistics.
60 * @param op the operation that has been finished
61 * @param emsg error message in case the operation has failed; will be NULL if
62 * operation has executed successfully.
65 shutdown_task (void *cls,
66 struct GNUNET_TESTBED_Operation *op,
71 "Error collecting statistics: %s\n",
73 GNUNET_SCHEDULER_shutdown ();
78 * Callback function to process statistic values from all peers.
82 * @param peer the peer the statistic belong to
83 * @param subsystem name of subsystem that created the statistic
84 * @param name the name of the datum
85 * @param value the current value
86 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
87 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
90 process_stats (void *cls,
91 const struct GNUNET_TESTBED_Peer *peer,
92 const char *subsystem,
102 (unsigned long long) value);
108 * Task run on timeout to terminate. Triggers printing out
115 terminate_task (void *cls,
116 const struct GNUNET_SCHEDULER_TaskContext *tc)
118 terminate_taskid = GNUNET_SCHEDULER_NO_TASK;
119 GNUNET_TESTBED_get_statistics (0, NULL,
127 * Signature of a main function for a testcase.
130 * @param num_peers number of peers in 'peers'
131 * @param peers handle to peers run in the testbed
134 test_master (void *cls, unsigned int num_peers, struct GNUNET_TESTBED_Peer **peers)
136 // const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
137 // FIXME: enable clients to signal 'completion' before timeout;
138 // in that case, run the 'terminate_task' "immediately"
140 if (0 != timeout.rel_value)
141 terminate_taskid = GNUNET_SCHEDULER_add_delayed (timeout,
142 &terminate_task, NULL);
144 terminate_taskid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
151 * Main function that will be run by the scheduler.
154 * @param args remaining command-line arguments
155 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
156 * @param cfg configuration
159 run (void *cls, char *const *args, const char *cfgfile,
160 const struct GNUNET_CONFIGURATION_Handle *cfg)
162 GNUNET_TESTBED_run (host_filename,
166 &test_master, (void *) cfg);
171 * Program to run a file-sharing testbed.
173 * @param argc number of arguments from the command line
174 * @param argv command line arguments
175 * @return 0 ok, 1 on error
178 main (int argc, char *const *argv)
180 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
181 {'n', "num-peers", "COUNT",
182 gettext_noop ("run the experiment with COUNT peers"),
183 1, &GNUNET_GETOPT_set_uint, &num_peers},
184 {'H', "hosts", "HOSTFILE",
185 gettext_noop ("specifies name of a file with the HOSTS the testbed should use"),
186 1, &GNUNET_GETOPT_set_string, &host_filename},
187 {'t', "timeout", "DELAY",
188 gettext_noop ("automatically terminate experiment after DELAY"),
189 1, &GNUNET_GETOPT_set_relative_time, &timeout},
190 GNUNET_GETOPT_OPTION_END
192 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
196 GNUNET_PROGRAM_run (argc, argv, "gnunet-fs-profiler",
197 gettext_noop ("run a testbed to measure file-sharing performance"), options, &run,
199 GNUNET_free ((void*) argv);
203 /* end of gnunet-fs-profiler.c */