2 This file is part of GNUnet
3 Copyright (C) 2012, 2013 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., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
22 * @author Christian Grothoff
25 * Plugin API for the namecache database backend
27 * @defgroup namecache-plugin Name Cache service plugin API
28 * Plugin API for the namecache database backend.
31 #ifndef GNUNET_NAMECACHE_PLUGIN_H
32 #define GNUNET_NAMECACHE_PLUGIN_H
34 #include "gnunet_util_lib.h"
35 #include "gnunet_namecache_service.h"
36 #include "gnunet_namestore_service.h"
41 #if 0 /* keep Emacsens' auto-indent happy */
48 * Function called for matching blocks.
51 * @param block lookup result
53 typedef void (*GNUNET_NAMECACHE_BlockCallback) (void *cls,
54 const struct GNUNET_GNSRECORD_Block *block);
58 * @brief struct returned by the initialization function of the plugin
60 struct GNUNET_NAMECACHE_PluginFunctions
64 * Closure to pass to all plugin functions.
69 * Cache a block in the datastore. Overwrites existing blocks
70 * for the same zone and label.
72 * @param cls closure (internal context for the plugin)
73 * @param block block to cache
74 * @return #GNUNET_OK on success, else #GNUNET_SYSERR
76 int (*cache_block) (void *cls,
77 const struct GNUNET_GNSRECORD_Block *block);
81 * Get the block for a particular zone and label in the
82 * datastore. Will return at most one result to the iterator.
84 * @param cls closure (internal context for the plugin)
85 * @param query hash of public key derived from the zone and the label
86 * @param iter function to call with the result
87 * @param iter_cls closure for @a iter
88 * @return #GNUNET_OK on success, #GNUNET_NO if there were no results, #GNUNET_SYSERR on error
90 int (*lookup_block) (void *cls,
91 const struct GNUNET_HashCode *query,
92 GNUNET_NAMECACHE_BlockCallback iter, void *iter_cls);
98 #if 0 /* keep Emacsens' auto-indent happy */
107 /** @} */ /* end of group */