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author | Christian Grothoff <christian@grothoff.org> | 2011-09-27 20:54:53 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2011-09-27 20:54:53 +0000 |
commit | afee959fde9dc953c1b9153ba2134848b422fde0 (patch) | |
tree | 77ed9e0c5ccb09442a60193f69a2cdc26e34fdab /src/dht/gnunet-service-dht.c | |
parent | 0faa3eaa142563dc765f21e71dfe6960bb631036 (diff) | |
download | gnunet-afee959fde9dc953c1b9153ba2134848b422fde0.tar.gz gnunet-afee959fde9dc953c1b9153ba2134848b422fde0.zip |
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Diffstat (limited to 'src/dht/gnunet-service-dht.c')
-rw-r--r-- | src/dht/gnunet-service-dht.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/dht/gnunet-service-dht.c b/src/dht/gnunet-service-dht.c new file mode 100644 index 000000000..3e0f3c8d9 --- /dev/null +++ b/src/dht/gnunet-service-dht.c | |||
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1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors) | ||
4 | |||
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. | ||
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 | General Public License for more details. | ||
14 | |||
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. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file dht/gnunet-service-dht.c | ||
23 | * @brief GNUnet DHT service | ||
24 | * @author Christian Grothoff | ||
25 | * @author Nathan Evans | ||
26 | */ | ||
27 | #include "platform.h" | ||
28 | #include "gnunet_block_lib.h" | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_transport_service.h" | ||
31 | #include "gnunet_hello_lib.h" | ||
32 | #include "gnunet_dht_service.h" | ||
33 | #include "gnunet_statistics_service.h" | ||
34 | #include "gnunet-service-dht.h" | ||
35 | #include "gnunet-service-dht_clients.h" | ||
36 | #include "gnunet-service-dht_datacache.h" | ||
37 | #include "gnunet-service-dht_hello.h" | ||
38 | #include "gnunet-service-dht_neighbours.h" | ||
39 | #include "gnunet-service-dht_nse.h" | ||
40 | #include "gnunet-service-dht_routing.h" | ||
41 | |||
42 | |||
43 | |||
44 | /** | ||
45 | * Handle for the statistics service. | ||
46 | */ | ||
47 | struct GNUNET_STATISTICS_Handle *GDS_stats; | ||
48 | |||
49 | /** | ||
50 | * Our handle to the BLOCK library. | ||
51 | */ | ||
52 | struct GNUNET_BLOCK_Context *GDS_block_context; | ||
53 | |||
54 | /** | ||
55 | * The configuration the DHT service is running with | ||
56 | */ | ||
57 | const struct GNUNET_CONFIGURATION_Handle *GDS_cfg; | ||
58 | |||
59 | /** | ||
60 | * Our HELLO | ||
61 | */ | ||
62 | struct GNUNET_MessageHeader *GDS_my_hello; | ||
63 | |||
64 | /** | ||
65 | * Handle to the transport service, for getting our hello | ||
66 | */ | ||
67 | struct GNUNET_TRANSPORT_Handle *GDS_transport_handle; | ||
68 | |||
69 | |||
70 | /** | ||
71 | * Handle to get our current HELLO. | ||
72 | */ | ||
73 | static struct GNUNET_TRANSPORT_GetHelloHandle *ghh; | ||
74 | |||
75 | |||
76 | /** | ||
77 | * Receive the HELLO from transport service, free current and replace | ||
78 | * if necessary. | ||
79 | * | ||
80 | * @param cls NULL | ||
81 | * @param message HELLO message of peer | ||
82 | */ | ||
83 | static void | ||
84 | process_hello (void *cls, | ||
85 | const struct GNUNET_MessageHeader *message) | ||
86 | { | ||
87 | GNUNET_assert (message != NULL); | ||
88 | GNUNET_free_non_null (GDS_my_hello); | ||
89 | GDS_my_hello = GNUNET_malloc (ntohs (message->size)); | ||
90 | memcpy (GDS_my_hello, message, ntohs (message->size)); | ||
91 | } | ||
92 | |||
93 | |||
94 | /** | ||
95 | * Task run during shutdown. | ||
96 | * | ||
97 | * @param cls unused | ||
98 | * @param tc unused | ||
99 | */ | ||
100 | static void | ||
101 | shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) | ||
102 | { | ||
103 | if (NULL != ghh) | ||
104 | { | ||
105 | GNUNET_TRANSPORT_get_hello_cancel (ghh); | ||
106 | ghh = NULL; | ||
107 | } | ||
108 | if (GDS_transport_handle != NULL) | ||
109 | { | ||
110 | GNUNET_TRANSPORT_disconnect (GDS_transport_handle); | ||
111 | GDS_transport_handle = NULL; | ||
112 | } | ||
113 | GDS_NEIGHBOURS_done (); | ||
114 | GDS_DATACACHE_done (); | ||
115 | GDS_ROUTING_done (); | ||
116 | GDS_HELLO_done (); | ||
117 | GDS_NSE_done (); | ||
118 | if (GDS_block_context != NULL) | ||
119 | { | ||
120 | GNUNET_BLOCK_context_destroy (GDS_block_context); | ||
121 | GDS_block_context = NULL; | ||
122 | } | ||
123 | if (GDS_stats != NULL) | ||
124 | { | ||
125 | GNUNET_STATISTICS_destroy (GDS_stats, GNUNET_YES); | ||
126 | GDS_stats = NULL; | ||
127 | } | ||
128 | GNUNET_free_non_null (GDS_my_hello); | ||
129 | GDS_my_hello = NULL; | ||
130 | } | ||
131 | |||
132 | |||
133 | /** | ||
134 | * Process dht requests. | ||
135 | * | ||
136 | * @param cls closure | ||
137 | * @param server the initialized server | ||
138 | * @param c configuration to use | ||
139 | */ | ||
140 | static void | ||
141 | run (void *cls, struct GNUNET_SERVER_Handle *server, | ||
142 | const struct GNUNET_CONFIGURATION_Handle *c) | ||
143 | { | ||
144 | GDS_cfg = c; | ||
145 | GDS_block_context = GNUNET_BLOCK_context_create (GDS_cfg); | ||
146 | GDS_stats = GNUNET_STATISTICS_create ("dht", GDS_cfg); | ||
147 | GDS_ROUTING_init (); | ||
148 | GDS_NSE_init (); | ||
149 | GDS_DATACACHE_init (); | ||
150 | GDS_HELLO_init (); | ||
151 | GDS_CLIENTS_init (server); | ||
152 | if (GNUNET_OK != | ||
153 | GDS_NEIGHBOURS_init ()) | ||
154 | { | ||
155 | shutdown_task (NULL, NULL); | ||
156 | return; | ||
157 | } | ||
158 | GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, | ||
159 | &shutdown_task, NULL); | ||
160 | GDS_transport_handle = | ||
161 | GNUNET_TRANSPORT_connect (GDS_cfg, NULL, NULL, NULL, NULL, NULL); | ||
162 | if (GDS_transport_handle == NULL) | ||
163 | { | ||
164 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
165 | _("Failed to connect to transport service!\n")); | ||
166 | return; | ||
167 | } | ||
168 | ghh = GNUNET_TRANSPORT_get_hello (GDS_transport_handle, | ||
169 | &process_hello, NULL); | ||
170 | } | ||
171 | |||
172 | |||
173 | /** | ||
174 | * The main function for the dht service. | ||
175 | * | ||
176 | * @param argc number of arguments from the command line | ||
177 | * @param argv command line arguments | ||
178 | * @return 0 ok, 1 on error | ||
179 | */ | ||
180 | int | ||
181 | main (int argc, char *const *argv) | ||
182 | { | ||
183 | int ret; | ||
184 | |||
185 | ret = (GNUNET_OK == | ||
186 | GNUNET_SERVICE_run (argc, argv, | ||
187 | "dht", | ||
188 | GNUNET_SERVICE_OPTION_NONE, | ||
189 | &run, NULL)) ? 0 : 1; | ||
190 | GDS_CLIENTS_done (); | ||
191 | return ret; | ||
192 | } | ||
193 | |||
194 | /* end of gnunet-service-dht.c */ | ||