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-rw-r--r--src/nse/test_nse_multipeer.c235
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diff --git a/src/nse/test_nse_multipeer.c b/src/nse/test_nse_multipeer.c
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2009, 2012 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
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,
8 or (at your option) any later version.
9
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 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20/**
21 * @file nse/test_nse_multipeer.c
22 * @brief Testcase for the network size estimation service. Starts
23 * a peergroup with a given number of peers, then waits to
24 * receive size estimates from each peer. Expects to wait
25 * for one message from each peer.
26 */
27#include "platform.h"
28#include "gnunet_testbed_service.h"
29#include "gnunet_nse_service.h"
30
31
32/**
33 * How many peers do we start?
34 */
35#define NUM_PEERS 4
36
37/**
38 * How long do we run the test?
39 */
40#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
41
42
43/**
44 * Information we track for each peer.
45 */
46struct NSEPeer
47{
48 /**
49 * Handle for NSE connect operation.
50 */
51 struct GNUNET_TESTBED_Operation *op;
52
53 /**
54 * Handle to NSE service.
55 */
56 struct GNUNET_NSE_Handle *nse_handle;
57};
58
59
60/**
61 * Information for all the peers.
62 */
63static struct NSEPeer nse_peers[NUM_PEERS];
64
65/**
66 * Return value from 'main'.
67 */
68static int ok;
69
70
71/**
72 * Task run on timeout to shut everything down.
73 */
74static void
75shutdown_task (void *cls)
76{
77 unsigned int i;
78
79 for (i = 0; i < NUM_PEERS; i++)
80 GNUNET_TESTBED_operation_done (nse_peers[i].op);
81 GNUNET_SCHEDULER_shutdown ();
82}
83
84
85/**
86 * Callback to call when network size estimate is updated.
87 *
88 * @param cls closure
89 * @param timestamp server timestamp
90 * @param estimate the value of the current network size estimate
91 * @param std_dev standard deviation (rounded down to nearest integer)
92 * of the size estimation values seen
93 *
94 */
95static void
96handle_estimate (void *cls, struct GNUNET_TIME_Absolute timestamp,
97 double estimate, double std_dev)
98{
99 struct NSEPeer *peer = cls;
100
101 fprintf (stderr,
102 "Received network size estimate from peer %u. logSize: %f std.dev. %f (%f/%u)\n",
103 (unsigned int) (peer - nse_peers),
104 estimate, std_dev,
105 GNUNET_NSE_log_estimate_to_n (estimate),
106 NUM_PEERS);
107 ok = 0;
108}
109
110
111/**
112 * Callback to be called when NSE service connect operation is completed
113 *
114 * @param cls the callback closure from functions generating an operation
115 * @param op the operation that has been finished
116 * @param ca_result the NSE service handle returned from nse_connect_adapter
117 * @param emsg error message in case the operation has failed; will be NULL if
118 * operation has executed successfully.
119 */
120static void
121nse_connect_complete_cb (void *cls,
122 struct GNUNET_TESTBED_Operation *op,
123 void *ca_result,
124 const char *emsg)
125{
126 struct NSEPeer *peer = cls;
127 struct GNUNET_NSE_Handle *nse = ca_result;
128
129 GNUNET_assert (op == peer->op);
130 if (NULL != emsg)
131 {
132 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
133 "Failed to connect to NSE service: %s\n",
134 emsg);
135 ok = 1;
136 GNUNET_SCHEDULER_shutdown ();
137 return;
138 }
139 peer->nse_handle = nse;
140}
141
142
143/**
144 * Adapter function called to establish a connection to
145 * the NSE service.
146 *
147 * @param cls closure
148 * @param cfg configuration of the peer to connect to; will be available until
149 * GNUNET_TESTBED_operation_done() is called on the operation returned
150 * from GNUNET_TESTBED_service_connect()
151 * @return service handle to return in 'op_result', NULL on error
152 */
153static void *
154nse_connect_adapter (void *cls,
155 const struct GNUNET_CONFIGURATION_Handle *cfg)
156{
157 return GNUNET_NSE_connect (cfg,
158 &handle_estimate,
159 cls);
160}
161
162
163/**
164 * Adapter function called to destroy connection to
165 * NSE service.
166 *
167 * @param cls closure
168 * @param op_result service handle returned from the connect adapter
169 */
170static void
171nse_disconnect_adapter (void *cls,
172 void *op_result)
173{
174 GNUNET_NSE_disconnect (op_result);
175}
176
177
178/**
179 * Actual "main" function for the testcase.
180 *
181 * @param cls closure
182 * @param h the run handle
183 * @param num_peers number of peers in 'peers'
184 * @param peers handle to peers run in the testbed
185 * @param links_succeeded the number of overlay link connection attempts that
186 * succeeded
187 * @param links_failed the number of overlay link connection attempts that
188 * failed
189 */
190static void
191run (void *cls,
192 struct GNUNET_TESTBED_RunHandle *h,
193 unsigned int num_peers,
194 struct GNUNET_TESTBED_Peer **peers,
195 unsigned int links_succeeded,
196 unsigned int links_failed)
197{
198 unsigned int i;
199
200 GNUNET_assert (NUM_PEERS == num_peers);
201 for (i = 0; i < num_peers; i++)
202 nse_peers[i].op = GNUNET_TESTBED_service_connect (&nse_peers[i],
203 peers[i],
204 "nse",
205 &nse_connect_complete_cb,
206 &nse_peers[i],
207 &nse_connect_adapter,
208 &nse_disconnect_adapter,
209 &nse_peers[i]);
210 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
211 &shutdown_task, NULL);
212}
213
214
215/**
216 * Entry point for the testcase, sets up the testbed.
217 *
218 * @param argc unused
219 * @param argv unused
220 * @return 0 on success
221 */
222int
223main (int argc, char *argv[])
224{
225 ok = 1;
226 (void) GNUNET_TESTBED_test_run ("test-nse-multipeer",
227 "test_nse.conf",
228 NUM_PEERS,
229 0, NULL, NULL,
230 &run, NULL);
231 return ok;
232}
233
234
235/* end of test_nse_multipeer.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 09:16:28 +0000