gnunet-service-dht_datacache.h

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/*
     This file is part of GNUnet.
     Copyright (C) 2009, 2010, 2011 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
*/

#ifndef GNUNET_SERVICE_DHT_DATACACHE_H
#define GNUNET_SERVICE_DHT_DATACACHE_H

#include "gnunet_util_lib.h"
#include "gnunet_block_lib.h"
#include "gnunet_dht_service.h"

void
GDS_DATACACHE_handle_put (struct GNUNET_TIME_Absolute expiration,
                          const struct GNUNET_HashCode *key,
                          unsigned int put_path_length,
                          const struct GNUNET_PeerIdentity *put_path,
                          enum GNUNET_BLOCK_Type type,
                          size_t data_size,
                          const void *data);


typedef void
(*GDS_DATACACHE_GetCallback)(void *cls,
                             enum GNUNET_BLOCK_Type type,
                             struct GNUNET_TIME_Absolute expiration_time,
                             const struct 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);


enum GNUNET_BLOCK_EvaluationResult
GDS_DATACACHE_handle_get (const struct GNUNET_HashCode *key,
                          enum GNUNET_BLOCK_Type type,
                          const void *xquery,
                          size_t xquery_size,
                          struct GNUNET_BLOCK_Group *bg,
                          GDS_DATACACHE_GetCallback gc,
                          void *gc_cls);


int
GDS_DATACACHE_get_random_key (struct GNUNET_HashCode *key);


typedef void
(*GDS_DATACACHE_SuccessorCallback)(void *cls,
                                   enum GNUNET_DHT_RouteOption options,
                                   const struct GNUNET_HashCode *key,
                                   enum GNUNET_BLOCK_Type type,
                                   unsigned int put_path_length,
                                   const struct GNUNET_PeerIdentity *put_path,
                                   struct GNUNET_TIME_Absolute expiration,
                                   const void *data,
                                   size_t data_size);


void
GDS_DATACACHE_get_successors (const struct GNUNET_HashCode *key,
                              GDS_DATACACHE_SuccessorCallback cb,
                              void *cb_cls);


void
GDS_DATACACHE_init (void);


void
GDS_DATACACHE_done (void);

#endif