diff options
Diffstat (limited to 'src/transport/transport_api_manipulation.c')
-rw-r--r-- | src/transport/transport_api_manipulation.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/src/transport/transport_api_manipulation.c b/src/transport/transport_api_manipulation.c deleted file mode 100644 index 4f4ccc4a0..000000000 --- a/src/transport/transport_api_manipulation.c +++ /dev/null | |||
@@ -1,249 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009-2013, 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 transport/transport_api_manipulation.c | ||
23 | * @brief library to access the low-level P2P IO service | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_constants.h" | ||
29 | #include "gnunet_arm_service.h" | ||
30 | #include "gnunet_hello_lib.h" | ||
31 | #include "gnunet_protocols.h" | ||
32 | #include "gnunet_transport_service.h" | ||
33 | #include "transport.h" | ||
34 | |||
35 | #define LOG(kind, ...) GNUNET_log_from (kind, "transport-api", __VA_ARGS__) | ||
36 | |||
37 | |||
38 | /** | ||
39 | * Handle for the transport service (includes all of the | ||
40 | * state for the transport service). | ||
41 | */ | ||
42 | struct GNUNET_TRANSPORT_ManipulationHandle | ||
43 | { | ||
44 | /** | ||
45 | * My client connection to the transport service. | ||
46 | */ | ||
47 | struct GNUNET_MQ_Handle *mq; | ||
48 | |||
49 | /** | ||
50 | * My configuration. | ||
51 | */ | ||
52 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
53 | |||
54 | /** | ||
55 | * ID of the task trying to reconnect to the service. | ||
56 | */ | ||
57 | struct GNUNET_SCHEDULER_Task *reconnect_task; | ||
58 | |||
59 | /** | ||
60 | * Delay until we try to reconnect. | ||
61 | */ | ||
62 | struct GNUNET_TIME_Relative reconnect_delay; | ||
63 | |||
64 | /** | ||
65 | * Reconnect in progress | ||
66 | */ | ||
67 | int reconnecting; | ||
68 | }; | ||
69 | |||
70 | |||
71 | /** | ||
72 | * Function that will schedule the job that will try | ||
73 | * to connect us again to the client. | ||
74 | * | ||
75 | * @param h transport service to reconnect | ||
76 | */ | ||
77 | static void | ||
78 | disconnect_and_schedule_reconnect (struct | ||
79 | GNUNET_TRANSPORT_ManipulationHandle *h); | ||
80 | |||
81 | |||
82 | /** | ||
83 | * Generic error handler, called with the appropriate | ||
84 | * error code and the same closure specified at the creation of | ||
85 | * the message queue. | ||
86 | * Not every message queue implementation supports an error handler. | ||
87 | * | ||
88 | * @param cls closure with the `struct GNUNET_TRANSPORT_ManipulationHandle *` | ||
89 | * @param error error code | ||
90 | */ | ||
91 | static void | ||
92 | mq_error_handler (void *cls, | ||
93 | enum GNUNET_MQ_Error error) | ||
94 | { | ||
95 | struct GNUNET_TRANSPORT_ManipulationHandle *h = cls; | ||
96 | |||
97 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
98 | "Error receiving from transport service, disconnecting temporarily.\n"); | ||
99 | h->reconnecting = GNUNET_YES; | ||
100 | disconnect_and_schedule_reconnect (h); | ||
101 | } | ||
102 | |||
103 | |||
104 | /** | ||
105 | * Try again to connect to transport service. | ||
106 | * | ||
107 | * @param cls the handle to the transport service | ||
108 | */ | ||
109 | static void | ||
110 | reconnect (void *cls) | ||
111 | { | ||
112 | struct GNUNET_TRANSPORT_ManipulationHandle *h = cls; | ||
113 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
114 | GNUNET_MQ_handler_end () | ||
115 | }; | ||
116 | struct GNUNET_MQ_Envelope *env; | ||
117 | struct StartMessage *s; | ||
118 | |||
119 | h->reconnect_task = NULL; | ||
120 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
121 | "Connecting to transport service.\n"); | ||
122 | GNUNET_assert (NULL == h->mq); | ||
123 | h->reconnecting = GNUNET_NO; | ||
124 | h->mq = GNUNET_CLIENT_connect (h->cfg, | ||
125 | "transport", | ||
126 | handlers, | ||
127 | &mq_error_handler, | ||
128 | h); | ||
129 | if (NULL == h->mq) | ||
130 | return; | ||
131 | env = GNUNET_MQ_msg (s, | ||
132 | GNUNET_MESSAGE_TYPE_TRANSPORT_START); | ||
133 | GNUNET_MQ_send (h->mq, | ||
134 | env); | ||
135 | } | ||
136 | |||
137 | |||
138 | /** | ||
139 | * Function that will schedule the job that will try | ||
140 | * to connect us again to the client. | ||
141 | * | ||
142 | * @param h transport service to reconnect | ||
143 | */ | ||
144 | static void | ||
145 | disconnect_and_schedule_reconnect (struct | ||
146 | GNUNET_TRANSPORT_ManipulationHandle *h) | ||
147 | { | ||
148 | GNUNET_assert (NULL == h->reconnect_task); | ||
149 | if (NULL != h->mq) | ||
150 | { | ||
151 | GNUNET_MQ_destroy (h->mq); | ||
152 | h->mq = NULL; | ||
153 | } | ||
154 | h->reconnect_task = | ||
155 | GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, | ||
156 | &reconnect, | ||
157 | h); | ||
158 | h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay); | ||
159 | } | ||
160 | |||
161 | |||
162 | /** | ||
163 | * Set transport metrics for a peer and a direction. | ||
164 | * | ||
165 | * @param handle transport handle | ||
166 | * @param peer the peer to set the metric for | ||
167 | * @param prop the performance metrics to set | ||
168 | * @param delay_in inbound delay to introduce | ||
169 | * @param delay_out outbound delay to introduce | ||
170 | * | ||
171 | * Note: Delay restrictions in receiving direction will be enforced | ||
172 | * with one message delay. | ||
173 | */ | ||
174 | void | ||
175 | GNUNET_TRANSPORT_manipulation_set (struct | ||
176 | GNUNET_TRANSPORT_ManipulationHandle *handle, | ||
177 | const struct GNUNET_PeerIdentity *peer, | ||
178 | const struct GNUNET_ATS_Properties *prop, | ||
179 | struct GNUNET_TIME_Relative delay_in, | ||
180 | struct GNUNET_TIME_Relative delay_out) | ||
181 | { | ||
182 | struct GNUNET_MQ_Envelope *env; | ||
183 | struct TrafficMetricMessage *msg; | ||
184 | |||
185 | if (NULL == handle->mq) | ||
186 | return; | ||
187 | env = GNUNET_MQ_msg (msg, | ||
188 | GNUNET_MESSAGE_TYPE_TRANSPORT_TRAFFIC_METRIC); | ||
189 | msg->reserved = htonl (0); | ||
190 | msg->peer = *peer; | ||
191 | GNUNET_ATS_properties_hton (&msg->properties, | ||
192 | prop); | ||
193 | msg->delay_in = GNUNET_TIME_relative_hton (delay_in); | ||
194 | msg->delay_out = GNUNET_TIME_relative_hton (delay_out); | ||
195 | GNUNET_MQ_send (handle->mq, | ||
196 | env); | ||
197 | } | ||
198 | |||
199 | |||
200 | /** | ||
201 | * Connect to the transport service. Note that the connection may | ||
202 | * complete (or fail) asynchronously. | ||
203 | * | ||
204 | * @param cfg configuration to use | ||
205 | * @return NULL on error | ||
206 | */ | ||
207 | struct GNUNET_TRANSPORT_ManipulationHandle * | ||
208 | GNUNET_TRANSPORT_manipulation_connect (const struct | ||
209 | GNUNET_CONFIGURATION_Handle *cfg) | ||
210 | { | ||
211 | struct GNUNET_TRANSPORT_ManipulationHandle *h; | ||
212 | |||
213 | h = GNUNET_new (struct GNUNET_TRANSPORT_ManipulationHandle); | ||
214 | h->cfg = cfg; | ||
215 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
216 | "Connecting to transport service.\n"); | ||
217 | reconnect (h); | ||
218 | if (NULL == h->mq) | ||
219 | { | ||
220 | GNUNET_free (h); | ||
221 | return NULL; | ||
222 | } | ||
223 | return h; | ||
224 | } | ||
225 | |||
226 | |||
227 | /** | ||
228 | * Disconnect from the transport service. | ||
229 | * | ||
230 | * @param handle handle to the service as returned from #GNUNET_TRANSPORT_manipulation_connect() | ||
231 | */ | ||
232 | void | ||
233 | GNUNET_TRANSPORT_manipulation_disconnect (struct | ||
234 | GNUNET_TRANSPORT_ManipulationHandle * | ||
235 | handle) | ||
236 | { | ||
237 | if (NULL == handle->reconnect_task) | ||
238 | disconnect_and_schedule_reconnect (handle); | ||
239 | /* and now we stop trying to connect again... */ | ||
240 | if (NULL != handle->reconnect_task) | ||
241 | { | ||
242 | GNUNET_SCHEDULER_cancel (handle->reconnect_task); | ||
243 | handle->reconnect_task = NULL; | ||
244 | } | ||
245 | GNUNET_free (handle); | ||
246 | } | ||
247 | |||
248 | |||
249 | /* end of transport_api_manipulation.c */ | ||