2 This file is part of GNUnet.
3 Copyright (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
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.
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.
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.
22 * @file dht/gnunet-service-dht_datacache.h
23 * @brief GNUnet DHT service's datacache integration
24 * @author Christian Grothoff
25 * @author Nathan Evans
27 #ifndef GNUNET_SERVICE_DHT_DATACACHE_H
28 #define GNUNET_SERVICE_DHT_DATACACHE_H
30 #include "gnunet_util_lib.h"
31 #include "gnunet_block_lib.h"
34 * Handle a datum we've received from another peer. Cache if
37 * @param expiration when will the reply expire
38 * @param key the query this reply is for
39 * @param put_path_length number of peers in 'put_path'
40 * @param put_path path the reply took on put
41 * @param type type of the reply
42 * @param data_size number of bytes in 'data'
43 * @param data application payload data
46 GDS_DATACACHE_handle_put (struct GNUNET_TIME_Absolute expiration,
47 const struct GNUNET_HashCode * key,
48 unsigned int put_path_length,
49 const struct GNUNET_PeerIdentity *put_path,
50 enum GNUNET_BLOCK_Type type, size_t data_size,
55 * Handle a GET request we've received from another peer.
57 * @param key the query
58 * @param type requested data type
59 * @param xquery extended query
60 * @param xquery_size number of bytes in xquery
61 * @param reply_bf where the reply bf is (to be) stored, possibly updated!, can be NULL
62 * @param reply_bf_mutator mutation value for reply_bf
63 * @return evaluation result for the local replies
65 enum GNUNET_BLOCK_EvaluationResult
66 GDS_DATACACHE_handle_get (const struct GNUNET_HashCode * key,
67 enum GNUNET_BLOCK_Type type, const void *xquery,
69 struct GNUNET_CONTAINER_BloomFilter **reply_bf,
70 uint32_t reply_bf_mutator,
71 uint32_t get_path_length,
72 struct GNUNET_PeerIdentity *get_path,
73 struct GNUNET_PeerIdentity *next_hop,
74 struct GNUNET_PeerIdentity *source_peer);
78 * Initialize datacache subsystem.
81 GDS_DATACACHE_init (void);
85 * Shutdown datacache subsystem.
88 GDS_DATACACHE_done (void);