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.
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,
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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;
58 * Signature of the event handler function called by the
59 * respective event controller.
62 * @param event information about the event
65 controller_cb(void *cls,
66 const struct GNUNET_TESTBED_EventInformation *event)
72 destroy (void *cls, const struct GNUNET_SCHEDULER_TaskContext *ctx)
74 struct GNUNET_CONSENSUS_Handle *consensus;
76 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "destroying consensus\n");
77 GNUNET_CONSENSUS_destroy (consensus);
79 if (peers_done == num_peers)
82 for (i = 0; i < num_peers; i++)
83 GNUNET_TESTBED_operation_done (testbed_operations[i]);
84 GNUNET_SCHEDULER_shutdown ();
90 * Called when a conclusion was successful.
92 * @param cls closure, the consensus handle
93 * @return GNUNET_YES if more consensus groups should be offered, GNUNET_NO if not
96 conclude_cb (void *cls)
98 GNUNET_SCHEDULER_add_now (destroy, cls);
103 generate_indices (int *indices)
107 while (j < replication)
112 n = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
114 for (k = 0; k < j; k++)
120 if (GNUNET_NO == repeat)
129 int unique_indices[replication];
132 for (i = 0; i < num_values; i++)
135 struct GNUNET_HashCode *val;
136 struct GNUNET_CONSENSUS_Element *element;
137 generate_indices(unique_indices);
139 val = GNUNET_malloc (sizeof *val);
140 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, val);
142 element = GNUNET_malloc (sizeof *element);
144 element->size = sizeof *val;
146 for (j = 0; j < replication; j++)
149 cid = unique_indices[j];
150 GNUNET_CONSENSUS_insert (consensus_handles[cid], element, NULL, NULL);
154 for (i = 0; i < num_peers; i++)
155 GNUNET_CONSENSUS_conclude (consensus_handles[i], conclude_timeout, conclude_cb, consensus_handles[i]);
160 * Callback to be called when a service connect operation is completed
162 * @param cls the callback closure from functions generating an operation
163 * @param op the operation that has been finished
164 * @param ca_result the service handle returned from GNUNET_TESTBED_ConnectAdapter()
165 * @param emsg error message in case the operation has failed; will be NULL if
166 * operation has executed successfully.
169 connect_complete (void *cls,
170 struct GNUNET_TESTBED_Operation *op,
174 struct GNUNET_CONSENSUS_Handle **chp;
178 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "testbed connect emsg: %s\n", emsg);
182 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "connect complete\n");
184 chp = (struct GNUNET_CONSENSUS_Handle **) cls;
185 *chp = (struct GNUNET_CONSENSUS_Handle *) ca_result;
186 num_connected_handles++;
188 if (num_connected_handles == num_peers)
196 new_element_cb (void *cls,
197 const struct GNUNET_CONSENSUS_Element *element)
199 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "received new element\n");
204 * Adapter function called to establish a connection to
208 * @param cfg configuration of the peer to connect to; will be available until
209 * GNUNET_TESTBED_operation_done() is called on the operation returned
210 * from GNUNET_TESTBED_service_connect()
211 * @return service handle to return in 'op_result', NULL on error
214 connect_adapter (void *cls,
215 const struct GNUNET_CONFIGURATION_Handle *cfg)
217 struct GNUNET_CONSENSUS_Handle *consensus;
218 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "connect adapter, %d peers\n", num_peers);
219 consensus = GNUNET_CONSENSUS_create (cfg, num_peers, peer_ids, &session_id, new_element_cb, NULL);
220 GNUNET_assert (NULL != consensus);
226 * Adapter function called to destroy a connection to
230 * @param op_result service handle returned from the connect adapter
233 disconnect_adapter(void *cls, void *op_result)
235 /* FIXME: what to do here? */
240 * Callback to be called when the requested peer information is available
242 * @param cb_cls the closure from GNUNET_TETSBED_peer_get_information()
243 * @param op the operation this callback corresponds to
244 * @param pinfo the result; will be NULL if the operation has failed
245 * @param emsg error message if the operation has failed; will be NULL if the
246 * operation is successfull
249 peer_info_cb (void *cb_cls,
250 struct GNUNET_TESTBED_Operation *op,
251 const struct GNUNET_TESTBED_PeerInformation *pinfo,
254 struct GNUNET_PeerIdentity *p;
257 GNUNET_assert (NULL == emsg);
259 p = (struct GNUNET_PeerIdentity *) cb_cls;
261 if (pinfo->pit == GNUNET_TESTBED_PIT_IDENTITY)
263 *p = *pinfo->result.id;
264 num_retrieved_peer_ids++;
265 if (num_retrieved_peer_ids == num_peers)
266 for (i = 0; i < num_peers; i++)
267 testbed_operations[i] =
268 GNUNET_TESTBED_service_connect (NULL, peers[i], "consensus", connect_complete, &consensus_handles[i],
269 connect_adapter, disconnect_adapter, NULL);
279 * Signature of a main function for a testcase.
282 * @param num_peers number of peers in 'peers'
283 * @param started_peers handle to peers run in the testbed. NULL upon timeout (see
284 * GNUNET_TESTBED_test_run()).
285 * @param links_succeeded the number of overlay link connection attempts that
287 * @param links_failed the number of overlay link connection attempts that
291 test_master (void *cls,
292 unsigned int num_peers,
293 struct GNUNET_TESTBED_Peer **started_peers,
294 unsigned int links_succeeded,
295 unsigned int links_failed)
299 GNUNET_log_setup ("gnunet-consensus", "INFO", NULL);
301 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "test master\n");
304 peers = started_peers;
306 peer_ids = GNUNET_malloc (num_peers * sizeof (struct GNUNET_PeerIdentity));
308 consensus_handles = GNUNET_malloc (num_peers * sizeof (struct ConsensusHandle *));
309 testbed_operations = GNUNET_malloc (num_peers * sizeof (struct ConsensusHandle *));
311 for (i = 0; i < num_peers; i++)
312 GNUNET_TESTBED_peer_get_information (peers[i],
313 GNUNET_TESTBED_PIT_IDENTITY,
319 run (void *cls, char *const *args, const char *cfgfile,
320 const struct GNUNET_CONFIGURATION_Handle *cfg)
322 static char *session_str = "gnunet-consensus/test";
324 if (num_peers < replication)
326 fprintf (stderr, "k must be <=n\n");
330 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "running gnunet-consensus\n");
332 GNUNET_CRYPTO_hash (session_str, strlen(session_str), &session_id);
334 (void) GNUNET_TESTBED_test_run ("gnunet-consensus",
346 main (int argc, char **argv)
348 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
349 { 'n', "num-peers", NULL,
350 gettext_noop ("number of peers in consensus"),
351 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_peers },
352 { 'k', "value-replication", NULL,
353 gettext_noop ("how many peers receive one value?"),
354 GNUNET_YES, &GNUNET_GETOPT_set_uint, &replication },
355 { 'x', "num-values", NULL,
356 gettext_noop ("number of values"),
357 GNUNET_YES, &GNUNET_GETOPT_set_uint, &num_values },
358 { 't', "timeout", NULL,
359 gettext_noop ("consensus timeout"),
360 GNUNET_YES, &GNUNET_GETOPT_set_relative_time, &conclude_timeout },
361 GNUNET_GETOPT_OPTION_END
363 conclude_timeout = GNUNET_TIME_UNIT_SECONDS;
364 GNUNET_PROGRAM_run2 (argc, argv, "gnunet-consensus",
366 options, &run, NULL, GNUNET_YES);