1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
This file is part of GNUnet.
(C) 2009, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file nse/test_nse_multipeer.c
* @brief Testcase for the network size estimation service. Starts
* a peergroup with a given number of peers, then waits to
* receive size estimates from each peer. Expects to wait
* for one message from each peer.
*/
#include "platform.h"
#include "gnunet_testbed_service.h"
#include "gnunet_nse_service.h"
/**
* How many peers do we start?
*/
#define NUM_PEERS 4
/**
* How long do we run the test?
*/
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
/**
* Information we track for each peer.
*/
struct NSEPeer
{
/**
* Handle for NSE connect operation.
*/
struct GNUNET_TESTBED_Operation *op;
/**
* Handle to NSE service.
*/
struct GNUNET_NSE_Handle *nse_handle;
};
/**
* Information for all the peers.
*/
static struct NSEPeer nse_peers[NUM_PEERS];
/**
* Return value from 'main'.
*/
static int ok;
/**
* Task run on timeout to shut everything down.
*/
static void
shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
unsigned int i;
for (i=0;i<NUM_PEERS;i++)
GNUNET_TESTBED_operation_done (nse_peers[i].op);
GNUNET_SCHEDULER_shutdown ();
}
/**
* Callback to call when network size estimate is updated.
*
* @param cls closure
* @param timestamp server timestamp
* @param estimate the value of the current network size estimate
* @param std_dev standard deviation (rounded down to nearest integer)
* of the size estimation values seen
*
*/
static void
handle_estimate (void *cls, struct GNUNET_TIME_Absolute timestamp,
double estimate, double std_dev)
{
struct NSEPeer *peer = cls;
FPRINTF (stderr,
"Received network size estimate from peer %u. logSize: %f std.dev. %f (%f/%u)\n",
(unsigned int) (peer - nse_peers),
estimate, std_dev,
GNUNET_NSE_log_estimate_to_n (estimate),
NUM_PEERS);
ok = 0;
}
/**
* Callback to be called when NSE service connect operation is completed
*
* @param cls the callback closure from functions generating an operation
* @param op the operation that has been finished
* @param ca_result the NSE service handle returned from nse_connect_adapter
* @param emsg error message in case the operation has failed; will be NULL if
* operation has executed successfully.
*/
static void
nse_connect_complete_cb (void *cls,
struct GNUNET_TESTBED_Operation *op,
void *ca_result,
const char *emsg)
{
struct NSEPeer *peer = cls;
struct GNUNET_NSE_Handle *nse = ca_result;
GNUNET_assert (op == peer->op);
if (NULL != emsg)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to connect to NSE service: %s\n",
emsg);
ok = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
peer->nse_handle = nse;
}
/**
* Adapter function called to establish a connection to
* the NSE service.
*
* @param cls closure
* @param cfg configuration of the peer to connect to; will be available until
* GNUNET_TESTBED_operation_done() is called on the operation returned
* from GNUNET_TESTBED_service_connect()
* @return service handle to return in 'op_result', NULL on error
*/
static void *
nse_connect_adapter (void *cls,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
return GNUNET_NSE_connect (cfg,
&handle_estimate,
cls);
}
/**
* Adapter function called to destroy connection to
* NSE service.
*
* @param cls closure
* @param op_result service handle returned from the connect adapter
*/
static void
nse_disconnect_adapter (void *cls,
void *op_result)
{
GNUNET_NSE_disconnect (op_result);
}
/**
* Actual "main" function for the testcase.
*
* @param cls closure
* @param h the run handle
* @param num_peers number of peers in 'peers'
* @param peers handle to peers run in the testbed
* @param links_succeeded the number of overlay link connection attempts that
* succeeded
* @param links_failed the number of overlay link connection attempts that
* failed
*/
static void
run (void *cls,
struct GNUNET_TESTBED_RunHandle *h,
unsigned int num_peers,
struct GNUNET_TESTBED_Peer **peers,
unsigned int links_succeeded,
unsigned int links_failed)
{
unsigned int i;
GNUNET_assert (NUM_PEERS == num_peers);
for (i=0;i<num_peers;i++)
nse_peers[i].op = GNUNET_TESTBED_service_connect (&nse_peers[i],
peers[i],
"nse",
&nse_connect_complete_cb,
&nse_peers[i],
&nse_connect_adapter,
&nse_disconnect_adapter,
&nse_peers[i]);
GNUNET_SCHEDULER_add_delayed (TIMEOUT, &shutdown_task, NULL);
}
/**
* Entry point for the testcase, sets up the testbed.
*
* @param argc unused
* @param argv unused
* @return 0 on success
*/
int
main (int argc, char *argv[])
{
ok = 1;
(void) GNUNET_TESTBED_test_run ("test-nse-multipeer",
"test_nse.conf",
NUM_PEERS,
0, NULL, NULL,
&run, NULL);
return ok;
}
/* end of test_nse_multipeer.c */
|
