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 2, or (at your
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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.
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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 consensus/gnunet-consensus.c
23 * @brief profiling tool for gnunet-consensus
24 * @author Florian Dold
27 #include "gnunet_common.h"
28 #include "gnunet_util_lib.h"
29 #include "gnunet_consensus_service.h"
30 #include "gnunet_testbed_service.h"
32 static unsigned int num_peers = 2;
34 static unsigned int replication = 1;
36 static unsigned int num_values = 5;
38 static struct GNUNET_TIME_Relative conclude_timeout;
40 static struct GNUNET_CONSENSUS_Handle **consensus_handles;
42 static struct GNUNET_TESTBED_Operation **testbed_operations;
44 static unsigned int num_connected_handles;
46 static struct GNUNET_TESTBED_Peer **peers;
48 static struct GNUNET_PeerIdentity *peer_ids;
50 static unsigned int num_retrieved_peer_ids;
52 static struct GNUNET_HashCode session_id;
54 static unsigned int peers_done = 0;
56 static unsigned *results_for_peer;
60 * Signature of the event handler function called by the
61 * respective event controller.
64 * @param event information about the event
67 controller_cb(void *cls,
68 const struct GNUNET_TESTBED_EventInformation *event)
74 destroy (void *cls, const struct GNUNET_SCHEDULER_TaskContext *ctx)
76 struct GNUNET_CONSENSUS_Handle *consensus;
78 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "destroying consensus\n");
79 GNUNET_CONSENSUS_destroy (consensus);
81 if (peers_done == num_peers)
84 for (i = 0; i < num_peers; i++)
85 GNUNET_TESTBED_operation_done (testbed_operations[i]);
86 for (i = 0; i < num_peers; i++)
87 printf ("P%u got %u of %u elements\n", i, results_for_peer[i], num_values);
88 GNUNET_SCHEDULER_shutdown ();
94 * Called when a conclusion was successful.
96 * @param cls closure, the consensus handle
97 * @return GNUNET_YES if more consensus groups should be offered, GNUNET_NO if not
100 conclude_cb (void *cls)
102 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "consensus done\n");
103 GNUNET_SCHEDULER_add_now (destroy, cls);
108 generate_indices (int *indices)
112 while (j < replication)
117 n = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
119 for (k = 0; k < j; k++)
125 if (GNUNET_NO == repeat)
134 int unique_indices[replication];
137 for (i = 0; i < num_values; i++)
140 struct GNUNET_HashCode *val;
141 struct GNUNET_SET_Element *element;
142 generate_indices(unique_indices);
144 val = GNUNET_malloc (sizeof *val);
145 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, val);
147 element = GNUNET_malloc (sizeof *element);
149 element->size = sizeof *val;
151 for (j = 0; j < replication; j++)
154 cid = unique_indices[j];
155 GNUNET_CONSENSUS_insert (consensus_handles[cid], element, NULL, NULL);
159 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "all elements inserted, calling conclude\n");
161 for (i = 0; i < num_peers; i++)
162 GNUNET_CONSENSUS_conclude (consensus_handles[i], conclude_timeout, conclude_cb, consensus_handles[i]);
167 * Callback to be called when a service connect operation is completed
169 * @param cls the callback closure from functions generating an operation
170 * @param op the operation that has been finished
171 * @param ca_result the service handle returned from GNUNET_TESTBED_ConnectAdapter()
172 * @param emsg error message in case the operation has failed; will be NULL if
173 * operation has executed successfully.
176 connect_complete (void *cls,
177 struct GNUNET_TESTBED_Operation *op,
184 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "testbed connect emsg: %s\n", emsg);
188 num_connected_handles++;
190 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "connect complete\n");
192 if (num_connected_handles == num_peers)
200 new_element_cb (void *cls,
201 const struct GNUNET_SET_Element *element)
203 struct GNUNET_CONSENSUS_Handle **chp = cls;
205 GNUNET_assert (NULL != cls);
207 results_for_peer[chp - consensus_handles]++;
212 * Adapter function called to establish a connection to
216 * @param cfg configuration of the peer to connect to; will be available until
217 * GNUNET_TESTBED_operation_done() is called on the operation returned
218 * from GNUNET_TESTBED_service_connect()
219 * @return service handle to return in 'op_result', NULL on error
222 connect_adapter (void *cls,
223 const struct GNUNET_CONFIGURATION_Handle *cfg)
225 struct GNUNET_CONSENSUS_Handle **chp = cls;
226 struct GNUNET_CONSENSUS_Handle *consensus;
227 chp = (struct GNUNET_CONSENSUS_Handle **) cls;
229 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "connect adapter, %d peers\n", num_peers);
230 consensus = GNUNET_CONSENSUS_create (cfg, num_peers, peer_ids, &session_id, new_element_cb, chp);
231 *chp = (struct GNUNET_CONSENSUS_Handle *) consensus;
237 * Adapter function called to destroy a connection to
241 * @param op_result service handle returned from the connect adapter
244 disconnect_adapter(void *cls, void *op_result)
246 /* FIXME: what to do here? */
251 * Callback to be called when the requested peer information is available
253 * @param cb_cls the closure from GNUNET_TETSBED_peer_get_information()
254 * @param op the operation this callback corresponds to
255 * @param pinfo the result; will be NULL if the operation has failed
256 * @param emsg error message if the operation has failed; will be NULL if the
257 * operation is successfull
260 peer_info_cb (void *cb_cls,
261 struct GNUNET_TESTBED_Operation *op,
262 const struct GNUNET_TESTBED_PeerInformation *pinfo,
265 struct GNUNET_PeerIdentity *p;
268 GNUNET_assert (NULL == emsg);
270 p = (struct GNUNET_PeerIdentity *) cb_cls;
272 if (pinfo->pit == GNUNET_TESTBED_PIT_IDENTITY)
274 *p = *pinfo->result.id;
275 num_retrieved_peer_ids++;
276 if (num_retrieved_peer_ids == num_peers)
277 for (i = 0; i < num_peers; i++)
278 testbed_operations[i] =
279 GNUNET_TESTBED_service_connect (NULL, peers[i], "consensus", connect_complete, NULL,
280 connect_adapter, disconnect_adapter, &consensus_handles[i]);
287 GNUNET_TESTBED_operation_done (op);
292 * Signature of a main function for a testcase.
295 * @param num_peers number of peers in 'peers'
296 * @param started_peers handle to peers run in the testbed. NULL upon timeout (see
297 * GNUNET_TESTBED_test_run()).
298 * @param links_succeeded the number of overlay link connection attempts that
300 * @param links_failed the number of overlay link connection attempts that
304 test_master (void *cls,
305 unsigned int num_peers,
306 struct GNUNET_TESTBED_Peer **started_peers,
307 unsigned int links_succeeded,
308 unsigned int links_failed)
312 GNUNET_log_setup ("gnunet-consensus", "INFO", NULL);
314 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "test master\n");
316 peers = started_peers;
318 peer_ids = GNUNET_malloc (num_peers * sizeof (struct GNUNET_PeerIdentity));
320 results_for_peer = GNUNET_malloc (num_peers * sizeof (unsigned int));
321 consensus_handles = GNUNET_malloc (num_peers * sizeof (struct ConsensusHandle *));
322 testbed_operations = GNUNET_malloc (num_peers * sizeof (struct ConsensusHandle *));
324 for (i = 0; i < num_peers; i++)
325 GNUNET_TESTBED_peer_get_information (peers[i],
326 GNUNET_TESTBED_PIT_IDENTITY,
332 run (void *cls, char *const *args, const char *cfgfile,
333 const struct GNUNET_CONFIGURATION_Handle *cfg)
335 static char *session_str = "gnunet-consensus/test";
338 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, "testbed", "OVERLAY_TOPOLOGY", &topology))
340 fprintf (stderr, "'OVERLAY_TOPOLOGY' not found in 'testbed' config section, "
341 "seems like you passed the wrong configuration file\n");
345 if (0 == strcasecmp (topology, "NONE"))
347 fprintf (stderr, "'OVERLAY_TOPOLOGY' set to 'NONE', "
348 "seems like you passed the wrong configuration file\n");
352 GNUNET_free (topology);
354 if (num_peers < replication)
356 fprintf (stderr, "k must be <=n\n");
360 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "running gnunet-consensus\n");
362 GNUNET_CRYPTO_hash (session_str, strlen(session_str), &session_id);
364 (void) GNUNET_TESTBED_test_run ("gnunet-consensus",
376 main (int argc, char **argv)
378 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
379 { 'n', "num-peers", NULL,
380 gettext_noop ("number of peers in consensus"),
381 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_peers },
382 { 'k', "value-replication", NULL,
383 gettext_noop ("how many peers receive one value?"),
384 GNUNET_YES, &GNUNET_GETOPT_set_uint, &replication },
385 { 'x', "num-values", NULL,
386 gettext_noop ("number of values"),
387 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_values },
388 { 't', "timeout", NULL,
389 gettext_noop ("consensus timeout"),
390 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &conclude_timeout },
391 GNUNET_GETOPT_OPTION_END
393 conclude_timeout = GNUNET_TIME_UNIT_SECONDS;
394 GNUNET_PROGRAM_run2 (argc, argv, "gnunet-consensus",
396 options, &run, NULL, GNUNET_YES);