aboutsummaryrefslogtreecommitdiff
path: root/src/testbed/testbed_api_barriers.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/testbed/testbed_api_barriers.c')
-rw-r--r--src/testbed/testbed_api_barriers.c264
1 files changed, 0 insertions, 264 deletions
diff --git a/src/testbed/testbed_api_barriers.c b/src/testbed/testbed_api_barriers.c
deleted file mode 100644
index 61578c1e6..000000000
--- a/src/testbed/testbed_api_barriers.c
+++ /dev/null
@@ -1,264 +0,0 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2008--2013, 2016 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/**
22 * @file testbed/testbed_api_barriers.c
23 * @brief API implementation for testbed barriers
24 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
25 */
26#include "platform.h"
27#include "gnunet_testbed_service.h"
28#include "testbed_api.h"
29
30/**
31 * Logging shorthand
32 */
33#define LOG(type, ...) \
34 GNUNET_log_from (type, "testbed-api-barriers", __VA_ARGS__);
35
36/**
37 * Debug logging shorthand
38 */
39#define LOG_DEBUG(...) \
40 LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__);
41
42
43/**
44 * Barrier wait handle
45 */
46struct GNUNET_TESTBED_BarrierWaitHandle
47{
48 /**
49 * The name of the barrier
50 */
51 char *name;
52
53 /**
54 * Then configuration used for the client connection
55 */
56 struct GNUNET_CONFIGURATION_Handle *cfg;
57
58 /**
59 * The testbed-barrier service message queue.
60 */
61 struct GNUNET_MQ_Handle *mq;
62
63 /**
64 * The barrier wait callback
65 */
66 GNUNET_TESTBED_barrier_wait_cb cb;
67
68 /**
69 * The closure for @e cb.
70 */
71 void *cb_cls;
72};
73
74
75/**
76 * Check if barrier status message is well-formed.
77 *
78 * @param cls closure
79 * @param msg received message
80 * @return #GNUNET_OK if the message is well-formed.
81 */
82static int
83check_status (void *cls,
84 const struct GNUNET_TESTBED_BarrierStatusMsg *msg)
85{
86 /* FIXME: this fails to actually check that the message
87 follows the protocol spec (0-terminations!). However,
88 not critical as #handle_status() doesn't interpret the
89 variable-size part anyway right now. */
90 return GNUNET_OK;
91}
92
93
94/**
95 * Type of a function to call when we receive a message
96 * from the service.
97 *
98 * @param cls closure
99 * @param msg received message
100 */
101static void
102handle_status (void *cls,
103 const struct GNUNET_TESTBED_BarrierStatusMsg *msg)
104{
105 struct GNUNET_TESTBED_BarrierWaitHandle *h = cls;
106
107 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
108 "Got barrier status %d\n",
109 (int) ntohs (msg->status));
110 switch (ntohs (msg->status))
111 {
112 case GNUNET_TESTBED_BARRIERSTATUS_ERROR:
113 h->cb (h->cb_cls,
114 h->name,
115 GNUNET_SYSERR);
116 break;
117
118 case GNUNET_TESTBED_BARRIERSTATUS_INITIALISED:
119 h->cb (h->cb_cls,
120 h->name,
121 GNUNET_SYSERR);
122 GNUNET_break (0);
123 break;
124
125 case GNUNET_TESTBED_BARRIERSTATUS_CROSSED:
126 h->cb (h->cb_cls,
127 h->name,
128 GNUNET_OK);
129 break;
130
131 default:
132 GNUNET_break_op (0);
133 h->cb (h->cb_cls,
134 h->name,
135 GNUNET_SYSERR);
136 break;
137 }
138 GNUNET_TESTBED_barrier_wait_cancel (h);
139}
140
141
142/**
143 * Generic error handler, called with the appropriate error code and
144 * the same closure specified at the creation of the message queue.
145 * Not every message queue implementation supports an error handler.
146 *
147 * @param cls closure with the `struct GNUNET_TESTBED_BarrierWaitHandle *`
148 * @param error error code
149 */
150static void
151mq_error_handler (void *cls,
152 enum GNUNET_MQ_Error error)
153{
154 struct GNUNET_TESTBED_BarrierWaitHandle *h = cls;
155
156 h->cb (h->cb_cls,
157 h->name,
158 GNUNET_SYSERR);
159 GNUNET_TESTBED_barrier_wait_cancel (h);
160}
161
162
163/**
164 * Wait for a barrier to be crossed. This function should be called by the
165 * peers which have been started by the testbed. If the peer is not started by
166 * testbed this function may return error
167 *
168 * @param name the name of the barrier
169 * @param cb the barrier wait callback
170 * @param cb_cls the closure for @a cb
171 * @return barrier wait handle which can be used to cancel the waiting at
172 * anytime before the callback is called. NULL upon error.
173 */
174struct GNUNET_TESTBED_BarrierWaitHandle *
175GNUNET_TESTBED_barrier_wait (const char *name,
176 GNUNET_TESTBED_barrier_wait_cb cb,
177 void *cb_cls)
178{
179 struct GNUNET_TESTBED_BarrierWaitHandle *h
180 = GNUNET_new (struct GNUNET_TESTBED_BarrierWaitHandle);
181 struct GNUNET_MQ_MessageHandler handlers[] = {
182 GNUNET_MQ_hd_var_size (status,
183 GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_STATUS,
184 struct GNUNET_TESTBED_BarrierStatusMsg,
185 h),
186 GNUNET_MQ_handler_end ()
187 };
188 struct GNUNET_MQ_Envelope *env;
189 struct GNUNET_TESTBED_BarrierWait *msg;
190 const char *cfg_filename;
191 size_t name_len;
192
193 GNUNET_assert (NULL != cb);
194 cfg_filename = getenv (ENV_TESTBED_CONFIG);
195 if (NULL == cfg_filename)
196 {
197 LOG (GNUNET_ERROR_TYPE_ERROR,
198 "Are you running under testbed?\n");
199 GNUNET_free (h);
200 return NULL;
201 }
202 h->cfg = GNUNET_CONFIGURATION_create ();
203 if (GNUNET_OK !=
204 GNUNET_CONFIGURATION_load (h->cfg,
205 cfg_filename))
206 {
207 LOG (GNUNET_ERROR_TYPE_ERROR,
208 "Unable to load configuration from file `%s'\n",
209 cfg_filename);
210 GNUNET_CONFIGURATION_destroy (h->cfg);
211 GNUNET_free (h);
212 return NULL;
213 }
214 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
215 "Waiting on barrier `%s'\n",
216 name);
217 h->name = GNUNET_strdup (name);
218 h->cb = cb;
219 h->cb_cls = cb_cls;
220 h->mq = GNUNET_CLIENT_connect (h->cfg,
221 "testbed-barrier",
222 handlers,
223 &mq_error_handler,
224 h);
225 if (NULL == h->mq)
226 {
227 LOG (GNUNET_ERROR_TYPE_ERROR,
228 "Unable to connect to local testbed-barrier service\n");
229 GNUNET_TESTBED_barrier_wait_cancel (h);
230 return NULL;
231 }
232 name_len = strlen (name); /* NOTE: unusual to not have 0-termination, change? */
233 env = GNUNET_MQ_msg_extra (msg,
234 name_len,
235 GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_WAIT);
236 GNUNET_memcpy (msg->name,
237 name,
238 name_len);
239 GNUNET_MQ_send (h->mq,
240 env);
241 return h;
242}
243
244
245/**
246 * Cancel a barrier wait handle
247 *
248 * @param h the barrier wait handle
249 */
250void
251GNUNET_TESTBED_barrier_wait_cancel (struct GNUNET_TESTBED_BarrierWaitHandle *h)
252{
253 if (NULL != h->mq)
254 {
255 GNUNET_MQ_destroy (h->mq);
256 h->mq = NULL;
257 }
258 GNUNET_free (h->name);
259 GNUNET_CONFIGURATION_destroy (h->cfg);
260 GNUNET_free (h);
261}
262
263
264/* end of testbed_api_barriers.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-25 01:29:18 +0000