diff options
Diffstat (limited to 'src/dht/gnunet-service-dht_neighbours.h')
-rw-r--r-- | src/dht/gnunet-service-dht_neighbours.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/dht/gnunet-service-dht_neighbours.h b/src/dht/gnunet-service-dht_neighbours.h new file mode 100644 index 0000000..b6e0f0e --- /dev/null +++ b/src/dht/gnunet-service-dht_neighbours.h @@ -0,0 +1,138 @@ +/* + This file is part of GNUnet. + (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors) + + GNUnet is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3, or (at your + option) any later version. + + GNUnet is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNUnet; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +/** + * @file dht/gnunet-service-dht_neighbours.h + * @brief GNUnet DHT routing code + * @author Christian Grothoff + * @author Nathan Evans + */ +#ifndef GNUNET_SERVICE_DHT_NEIGHBOURS_H +#define GNUNET_SERVICE_DHT_NEIGHBOURS_H + +#include "gnunet_util_lib.h" +#include "gnunet_block_lib.h" +#include "gnunet_dht_service.h" + +/** + * Perform a PUT operation. Forwards the given request to other + * peers. Does not store the data locally. Does not give the + * data to local clients. May do nothing if this is the only + * peer in the network (or if we are the closest peer in the + * network). + * + * @param type type of the block + * @param options routing options + * @param desired_replication_level desired replication level + * @param expiration_time when does the content expire + * @param hop_count how many hops has this message traversed so far + * @param bf Bloom filter of peers this PUT has already traversed + * @param key key for the content + * @param put_path_length number of entries in put_path + * @param put_path peers this request has traversed so far (if tracked) + * @param data payload to store + * @param data_size number of bytes in data + */ +void +GDS_NEIGHBOURS_handle_put (enum GNUNET_BLOCK_Type type, + enum GNUNET_DHT_RouteOption options, + uint32_t desired_replication_level, + struct GNUNET_TIME_Absolute expiration_time, + uint32_t hop_count, + struct GNUNET_CONTAINER_BloomFilter *bf, + const GNUNET_HashCode * key, + unsigned int put_path_length, + struct GNUNET_PeerIdentity *put_path, + const void *data, size_t data_size); + + +/** + * Perform a GET operation. Forwards the given request to other + * peers. Does not lookup the key locally. May do nothing if this is + * the only peer in the network (or if we are the closest peer in the + * network). + * + * @param type type of the block + * @param options routing options + * @param desired_replication_level desired replication count + * @param hop_count how many hops did this request traverse so far? + * @param key key for the content + * @param xquery extended query + * @param xquery_size number of bytes in xquery + * @param reply_bf bloomfilter to filter duplicates + * @param reply_bf_mutator mutator for reply_bf + * @param peer_bf filter for peers not to select (again, updated) + */ +void +GDS_NEIGHBOURS_handle_get (enum GNUNET_BLOCK_Type type, + enum GNUNET_DHT_RouteOption options, + uint32_t desired_replication_level, + uint32_t hop_count, const GNUNET_HashCode * key, + const void *xquery, size_t xquery_size, + const struct GNUNET_CONTAINER_BloomFilter *reply_bf, + uint32_t reply_bf_mutator, + struct GNUNET_CONTAINER_BloomFilter *peer_bf); + + +/** + * Handle a reply (route to origin). Only forwards the reply back to + * other peers waiting for it. Does not do local caching or + * forwarding to local clients. + * + * @param target neighbour that should receive the block (if still connected) + * @param type type of the block + * @param expiration_time when does the content expire + * @param key key for the content + * @param put_path_length number of entries in put_path + * @param put_path peers the original PUT traversed (if tracked) + * @param get_path_length number of entries in put_path + * @param get_path peers this reply has traversed so far (if tracked) + * @param data payload of the reply + * @param data_size number of bytes in data + */ +void +GDS_NEIGHBOURS_handle_reply (const struct GNUNET_PeerIdentity *target, + enum GNUNET_BLOCK_Type type, + struct GNUNET_TIME_Absolute expiration_time, + const GNUNET_HashCode * key, + unsigned int put_path_length, + const struct GNUNET_PeerIdentity *put_path, + unsigned int get_path_length, + const struct GNUNET_PeerIdentity *get_path, + const void *data, size_t data_size); + + +/** + * Initialize neighbours subsystem. + * + * @return GNUNET_OK on success, GNUNET_SYSERR on error + */ +int +GDS_NEIGHBOURS_init (void); + + +/** + * Shutdown neighbours subsystem. + */ +void +GDS_NEIGHBOURS_done (void); + + +#endif |