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3 Copyright (C) 2012 GNUnet e.V.
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6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
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13 Affero General Public License for more details.
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18 SPDX-License-Identifier: AGPL3.0-or-later
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 struct GNUNET_SCHEDULER_Task *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 shutdown to terminate. Triggers printing out
114 terminate_task (void *cls)
116 if (NULL != terminate_taskid)
118 GNUNET_SCHEDULER_cancel (terminate_taskid);
119 terminate_taskid = NULL;
121 GNUNET_TESTBED_get_statistics (0, NULL,
130 * Task run on timeout to terminate. Triggers printing out
136 timeout_task (void *cls)
138 terminate_taskid = NULL;
139 GNUNET_SCHEDULER_shutdown ();
144 * Signature of a main function for a testcase.
147 * @param h the run handle
148 * @param num_peers number of peers in 'peers'
149 * @param peers handle to peers run in the testbed
150 * @param links_succeeded the number of overlay link connection attempts that
152 * @param links_failed the number of overlay link connection attempts that
156 test_master (void *cls,
157 struct GNUNET_TESTBED_RunHandle *h,
158 unsigned int num_peers,
159 struct GNUNET_TESTBED_Peer **peers,
160 unsigned int links_succeeded,
161 unsigned int links_failed)
163 // const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
164 // FIXME: enable clients to signal 'completion' before timeout;
165 // in that case, run the 'terminate_task' "immediately"
167 if (0 != timeout.rel_value_us)
168 terminate_taskid = GNUNET_SCHEDULER_add_delayed (timeout,
171 GNUNET_SCHEDULER_add_shutdown (&terminate_task,
177 * Main function that will be run by the scheduler.
180 * @param args remaining command-line arguments
181 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
182 * @param cfg configuration
185 run (void *cls, char *const *args, const char *cfgfile,
186 const struct GNUNET_CONFIGURATION_Handle *cfg)
188 GNUNET_TESTBED_run (host_filename,
192 &test_master, (void *) cfg);
197 * Program to run a file-sharing testbed.
199 * @param argc number of arguments from the command line
200 * @param argv command line arguments
201 * @return 0 ok, 1 on error
204 main (int argc, char *const *argv)
206 struct GNUNET_GETOPT_CommandLineOption options[] = {
207 GNUNET_GETOPT_option_uint ('n',
211 "run the experiment with COUNT peers"),
214 GNUNET_GETOPT_option_string ('H',
218 "specifies name of a file with the HOSTS the testbed should use"),
221 GNUNET_GETOPT_option_relative_time ('t',
225 "automatically terminate experiment after DELAY"),
228 GNUNET_GETOPT_OPTION_END
231 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
235 GNUNET_PROGRAM_run (argc, argv, "gnunet-fs-profiler",
237 "run a testbed to measure file-sharing performance"),
240 GNUNET_free ((void*) argv);
245 /* end of gnunet-fs-profiler.c */