2 This file is part of GNUnet.
3 (C) 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.
21 * @file nse/test_nse_multipeer.c
23 * @brief Testcase for the network size estimation service. Starts
24 * a peergroup with a given number of peers, then waits to
25 * receive size estimates from each peer. Expects to wait
26 * for one message from each peer.
29 #include "gnunet_testing_lib.h"
30 #include "gnunet_nse_service.h"
32 #define VERBOSE GNUNET_NO
42 struct GNUNET_TESTING_Daemon *daemon;
44 struct GNUNET_NSE_Handle *nse_handle;
47 struct NSEPeer *peer_head;
49 struct NSEPeer *peer_tail;
52 * How long do we run the test?
54 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
58 static int peers_left;
60 static unsigned int num_peers;
62 static unsigned int total_connections;
64 static struct GNUNET_TESTING_PeerGroup *pg;
67 * Check whether peers successfully shut down.
70 shutdown_callback (void *cls, const char *emsg)
75 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
76 "Shutdown of peers failed: %s!\n",
85 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
86 "All peers successfully shut down!\n");
93 shutdown_task (void *cls,
94 const struct GNUNET_SCHEDULER_TaskContext *tc)
98 fprintf(stderr, "Ending test.\n");
101 while (NULL != (pos = peer_head))
103 GNUNET_NSE_disconnect(pos->nse_handle);
104 GNUNET_CONTAINER_DLL_remove(peer_head, peer_tail, pos);
108 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
112 * Callback to call when network size estimate is updated.
115 * @param estimate the value of the current network size estimate
116 * @param std_dev standard deviation (rounded down to nearest integer)
117 * of the size estimation values seen
121 handle_estimate (void *cls, double estimate, double std_dev)
123 struct NSEPeer *peer = cls;
126 "Received network size estimate from peer %s. logSize: %f std.dev. %f (%f/%u)\n",
127 GNUNET_i2s(&peer->daemon->id),
130 GNUNET_NSE_log_estimate_to_n (estimate),
136 connect_nse_service (void *cls,
137 const struct GNUNET_SCHEDULER_TaskContext *tc)
139 struct NSEPeer *current_peer;
142 fprintf(stderr, "TEST_NSE_MULTIPEER: connecting to nse service of peers\n");
144 for (i = 0; i < num_peers; i++)
146 current_peer = GNUNET_malloc(sizeof(struct NSEPeer));
147 current_peer->daemon = GNUNET_TESTING_daemon_get(pg, i);
148 current_peer->nse_handle = GNUNET_NSE_connect (current_peer->daemon->cfg,
151 GNUNET_assert(current_peer->nse_handle != NULL);
152 GNUNET_CONTAINER_DLL_insert (peer_head, peer_tail, current_peer);
163 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
164 "Peergroup callback called with error, aborting test!\n");
165 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Error from testing: `%s'\n");
167 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
172 "Peer Group started successfully, connecting to NSE service for each peer!\n");
174 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
175 "Have %u connections\n", total_connections);
177 GNUNET_SCHEDULER_add_now(&connect_nse_service, NULL);
182 * Function that will be called whenever
183 * two daemons are connected by the testing library.
186 * @param first peer id for first daemon
187 * @param second peer id for the second daemon
188 * @param distance distance between the connected peers
189 * @param first_cfg config for the first daemon
190 * @param second_cfg config for the second daemon
191 * @param first_daemon handle for the first daemon
192 * @param second_daemon handle for the second daemon
193 * @param emsg error message (NULL on success)
196 connect_cb (void *cls,
197 const struct GNUNET_PeerIdentity *first,
198 const struct GNUNET_PeerIdentity *second,
200 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
201 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
202 struct GNUNET_TESTING_Daemon *first_daemon,
203 struct GNUNET_TESTING_Daemon *second_daemon,
208 second_id = GNUNET_strdup(GNUNET_i2s(second));
211 //fprintf(stderr, "Connected %s -> %s\n", GNUNET_i2s(first), second_id);
221 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
223 struct GNUNET_CONFIGURATION_Handle *testing_cfg;
224 unsigned long long total_peers;
227 testing_cfg = GNUNET_CONFIGURATION_create();
228 GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_load(testing_cfg, cfgfile));
231 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting daemons.\n");
232 GNUNET_CONFIGURATION_set_value_string (testing_cfg,
237 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (testing_cfg,
241 total_peers = NUM_PEERS;
243 peers_left = total_peers;
244 num_peers = peers_left;
245 pg = GNUNET_TESTING_peergroup_start(testing_cfg,
251 GNUNET_assert (pg != NULL);
252 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &shutdown_task, NULL);
259 char *const argv[] = { "test-nse-multipeer",
267 struct GNUNET_GETOPT_CommandLineOption options[] = {
268 GNUNET_GETOPT_OPTION_END
270 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
271 argv, "test-nse-multipeer", "nohelp",
277 main (int argc, char *argv[])
281 GNUNET_log_setup ("test-nse-multipeer",
289 GNUNET_DISK_directory_remove ("/tmp/test-nse-multipeer");
293 /* end of test_nse_multipeer.c */