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3 Copyright (C) 2009, 2010, 2011, 2016 GNUnet e.V.
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,
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * @file dht/gnunet-service-dht.c
21 * @brief GNUnet DHT service
22 * @author Christian Grothoff
23 * @author Nathan Evans
26 #include "gnunet_block_lib.h"
27 #include "gnunet_util_lib.h"
28 #include "gnunet_transport_service.h"
29 #include "gnunet_transport_hello_service.h"
30 #include "gnunet_hello_lib.h"
31 #include "gnunet_dht_service.h"
32 #include "gnunet_statistics_service.h"
33 #include "gnunet-service-dht.h"
34 #include "gnunet-service-dht_datacache.h"
35 #include "gnunet-service-dht_hello.h"
36 #include "gnunet-service-dht_neighbours.h"
37 #include "gnunet-service-dht_nse.h"
38 #include "gnunet-service-dht_routing.h"
43 struct GNUNET_MessageHeader *GDS_my_hello;
46 * Handle to get our current HELLO.
48 static struct GNUNET_TRANSPORT_HelloGetHandle *ghh;
51 * Hello address expiration
53 struct GNUNET_TIME_Relative hello_expiration;
56 #include "gnunet-service-dht_clients.c"
60 * Receive the HELLO from transport service, free current and replace
64 * @param message HELLO message of peer
67 process_hello (void *cls,
68 const struct GNUNET_MessageHeader *message)
70 GNUNET_free_non_null (GDS_my_hello);
71 GDS_my_hello = GNUNET_malloc (ntohs (message->size));
72 GNUNET_memcpy (GDS_my_hello,
74 ntohs (message->size));
79 * Task run during shutdown.
84 shutdown_task (void *cls)
88 GNUNET_TRANSPORT_hello_get_cancel (ghh);
91 GDS_NEIGHBOURS_done ();
92 GDS_DATACACHE_done ();
96 if (NULL != GDS_block_context)
98 GNUNET_BLOCK_context_destroy (GDS_block_context);
99 GDS_block_context = NULL;
101 if (NULL != GDS_stats)
103 GNUNET_STATISTICS_destroy (GDS_stats,
107 GNUNET_free_non_null (GDS_my_hello);
114 * Process dht requests.
117 * @param c configuration to use
118 * @param service the initialized service
122 const struct GNUNET_CONFIGURATION_Handle *c,
123 struct GNUNET_SERVICE_Handle *service)
126 GDS_service = service;
128 GNUNET_CONFIGURATION_get_value_time (c,
133 hello_expiration = GNUNET_CONSTANTS_HELLO_ADDRESS_EXPIRATION;
135 GDS_block_context = GNUNET_BLOCK_context_create (GDS_cfg);
136 GDS_stats = GNUNET_STATISTICS_create ("dht",
138 GNUNET_SERVICE_suspend (GDS_service);
142 GDS_DATACACHE_init ();
144 if (GNUNET_OK != GDS_NEIGHBOURS_init ())
146 shutdown_task (NULL);
149 GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
151 ghh = GNUNET_TRANSPORT_hello_get (GDS_cfg,
152 GNUNET_TRANSPORT_AC_GLOBAL,
158 /* Finally, define the main method */
159 GDS_DHT_SERVICE_INIT("dht", &run);
164 /* end of gnunet-service-dht.c */