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- /*
- This file is part of GNUnet
- Copyright (C) 2012, 2013 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- 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
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @author Omar Tarabai
- *
- * @file
- * Plugin API for the peerstore database backend
- *
- * @defgroup peerstore-plugin Peer Store service plugin API
- * Plugin API for the peerstore database backend
- * @{
- */
- #ifndef GNUNET_PEERSTORE_PLUGIN_H
- #define GNUNET_PEERSTORE_PLUGIN_H
- #include "gnunet_util_lib.h"
- #include "gnunet_peerstore_service.h"
- #ifdef __cplusplus
- extern "C"
- {
- #if 0 /* keep Emacsens' auto-indent happy */
- }
- #endif
- #endif
- /**
- * @brief struct returned by the initialization function of the plugin
- */
- struct GNUNET_PEERSTORE_PluginFunctions
- {
- /**
- * Closure to pass to all plugin functions.
- */
- void *cls;
- /**
- * Store a record in the peerstore.
- * Key is the combination of sub system and peer identity.
- * One key can store multiple values.
- *
- * @param cls closure (internal context for the plugin)
- * @param sub_system name of the GNUnet sub system responsible
- * @param peer peer identity
- * @param value value to be stored
- * @param size size of value to be stored
- * @param expiry absolute time after which the record is (possibly) deleted
- * @param options options related to the store operation
- * @param cont continuation called when record is stored
- * @param cont_cls continuation closure
- * @return #GNUNET_OK on success, else #GNUNET_SYSERR and cont is not called
- */
- int
- (*store_record) (void *cls,
- const char *sub_system,
- const struct GNUNET_PeerIdentity *peer,
- const char *key,
- const void *value,
- size_t size,
- struct GNUNET_TIME_Absolute expiry,
- enum GNUNET_PEERSTORE_StoreOption options,
- GNUNET_PEERSTORE_Continuation cont,
- void *cont_cls);
- /**
- * Iterate over the records given an optional peer id
- * and/or key.
- *
- * @param cls closure (internal context for the plugin)
- * @param sub_system name of sub system
- * @param peer Peer identity (can be NULL)
- * @param key entry key string (can be NULL)
- * @param iter function to call asynchronously with the results, terminated
- * by a NULL result
- * @param iter_cls closure for @a iter
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and iter is not
- * called
- */
- int
- (*iterate_records) (void *cls,
- const char *sub_system,
- const struct GNUNET_PeerIdentity *peer,
- const char *key,
- GNUNET_PEERSTORE_Processor iter,
- void *iter_cls);
- /**
- * Delete expired records (expiry < now)
- *
- * @param cls closure (internal context for the plugin)
- * @param now time to use as reference
- * @param cont continuation called with the number of records expired
- * @param cont_cls continuation closure
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and cont is not
- * called
- */
- int
- (*expire_records) (void *cls,
- struct GNUNET_TIME_Absolute now,
- GNUNET_PEERSTORE_Continuation cont,
- void *cont_cls);
- };
- #if 0 /* keep Emacsens' auto-indent happy */
- {
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif
- /** @} */ /* end of group */
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