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22 * @file dht/gnunet-service-dht.c
23 * @brief GNUnet DHT service
24 * @author Christian Grothoff
25 * @author Nathan Evans
28 #include "gnunet_block_lib.h"
29 #include "gnunet_util_lib.h"
30 #include "gnunet_transport_service.h"
31 #include "gnunet_transport_hello_service.h"
32 #include "gnunet_hello_lib.h"
33 #include "gnunet_dht_service.h"
34 #include "gnunet_statistics_service.h"
35 #include "gnunet-service-dht.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"
45 struct GNUNET_MessageHeader *GDS_my_hello;
48 * Handle to get our current HELLO.
50 static struct GNUNET_TRANSPORT_HelloGetHandle *ghh;
53 * Hello address expiration
55 struct GNUNET_TIME_Relative hello_expiration;
58 /* Code shared between different DHT implementations */
59 #include "gnunet-service-dht_clients.c"
63 * Receive the HELLO from transport service, free current and replace
67 * @param message HELLO message of peer
70 process_hello (void *cls,
71 const struct GNUNET_MessageHeader *message)
73 GNUNET_free_non_null (GDS_my_hello);
74 GDS_my_hello = GNUNET_malloc (ntohs (message->size));
75 GNUNET_memcpy (GDS_my_hello,
77 ntohs (message->size));
82 * Task run during shutdown.
87 shutdown_task (void *cls)
91 GNUNET_TRANSPORT_hello_get_cancel (ghh);
94 GDS_NEIGHBOURS_done ();
95 GDS_DATACACHE_done ();
99 if (NULL != GDS_block_context)
101 GNUNET_BLOCK_context_destroy (GDS_block_context);
102 GDS_block_context = NULL;
104 if (NULL != GDS_stats)
106 GNUNET_STATISTICS_destroy (GDS_stats,
110 GNUNET_free_non_null (GDS_my_hello);
117 * Process dht requests.
120 * @param c configuration to use
121 * @param service the initialized service
125 const struct GNUNET_CONFIGURATION_Handle *c,
126 struct GNUNET_SERVICE_Handle *service)
129 GDS_service = service;
131 GNUNET_CONFIGURATION_get_value_time (c,
136 hello_expiration = GNUNET_CONSTANTS_HELLO_ADDRESS_EXPIRATION;
138 GDS_block_context = GNUNET_BLOCK_context_create (GDS_cfg);
139 GDS_stats = GNUNET_STATISTICS_create ("dht",
141 GNUNET_SERVICE_suspend (GDS_service);
145 GDS_DATACACHE_init ();
147 if (GNUNET_OK != GDS_NEIGHBOURS_init ())
149 shutdown_task (NULL);
152 GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
154 ghh = GNUNET_TRANSPORT_hello_get (GDS_cfg,
155 GNUNET_TRANSPORT_AC_GLOBAL,
161 /* Finally, define the main method */
162 GDS_DHT_SERVICE_INIT("dht", &run);
167 /* end of gnunet-service-dht.c */