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/*
This file is part of GNUnet.
Copyright (C) 2009-2016 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/>.
*/
/**
* @file dht/gnunet-service-dht.h
* @brief GNUnet DHT globals
* @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_DHT_H
#define GNUNET_SERVICE_DHT_H
#include "gnunet_util_lib.h"
#include "gnunet_statistics_service.h"
#include "gnunet_transport_service.h"
#include "gnunet_block_lib.h"
#define DEBUG_DHT GNUNET_EXTRA_LOGGING
/**
* Configuration we use.
*/
extern const struct GNUNET_CONFIGURATION_Handle *GDS_cfg;
/**
* Handle for the service.
*/
extern struct GNUNET_SERVICE_Handle *GDS_service;
/**
* Our handle to the BLOCK library.
*/
extern struct GNUNET_BLOCK_Context *GDS_block_context;
/**
* Handle for the statistics service.
*/
extern struct GNUNET_STATISTICS_Handle *GDS_stats;
/**
* Our HELLO
*/
extern struct GNUNET_MessageHeader *GDS_my_hello;
/**
* Handle a reply we've received from another peer. If the reply
* matches any of our pending queries, forward it to the respective
* client(s).
*
* @param expiration when will the reply expire
* @param key the query this reply is for
* @param get_path_length number of peers in @a get_path
* @param get_path path the reply took on get
* @param put_path_length number of peers in @a put_path
* @param put_path path the reply took on put
* @param type type of the reply
* @param data_size number of bytes in @a data
* @param data application payload data
*/
void
GDS_CLIENTS_handle_reply (struct GNUNET_TIME_Absolute expiration,
const struct GNUNET_HashCode *key,
unsigned int get_path_length,
const struct GNUNET_PeerIdentity *get_path,
unsigned int put_path_length,
const struct GNUNET_PeerIdentity *put_path,
enum GNUNET_BLOCK_Type type,
size_t data_size,
const void *data);
/**
* Check if some client is monitoring GET messages and notify
* them in that case.
*
* @param options Options, for instance RecordRoute, DemultiplexEverywhere.
* @param type The type of data in the request.
* @param hop_count Hop count so far.
* @param path_length number of entries in path (or 0 if not recorded).
* @param path peers on the GET path (or NULL if not recorded).
* @param desired_replication_level Desired replication level.
* @param key Key of the requested data.
*/
void
GDS_CLIENTS_process_get (uint32_t options,
enum GNUNET_BLOCK_Type type,
uint32_t hop_count,
uint32_t desired_replication_level,
unsigned int path_length,
const struct GNUNET_PeerIdentity *path,
const struct GNUNET_HashCode *key);
/**
* Check if some client is monitoring GET RESP messages and notify
* them in that case.
*
* @param type The type of data in the result.
* @param get_path Peers on GET path (or NULL if not recorded).
* @param get_path_length number of entries in @a get_path.
* @param put_path peers on the PUT path (or NULL if not recorded).
* @param put_path_length number of entries in @a get_path.
* @param exp Expiration time of the data.
* @param key Key of the @a data.
* @param data Pointer to the result data.
* @param size Number of bytes in @a data.
*/
void
GDS_CLIENTS_process_get_resp (enum GNUNET_BLOCK_Type type,
const struct GNUNET_PeerIdentity *get_path,
unsigned int get_path_length,
const struct GNUNET_PeerIdentity *put_path,
unsigned int put_path_length,
struct GNUNET_TIME_Absolute exp,
const struct GNUNET_HashCode * key,
const void *data,
size_t size);
/**
* Check if some client is monitoring PUT messages and notify
* them in that case.
*
* @param options Options, for instance RecordRoute, DemultiplexEverywhere.
* @param type The type of data in the request.
* @param hop_count Hop count so far.
* @param path_length number of entries in path (or 0 if not recorded).
* @param path peers on the PUT path (or NULL if not recorded).
* @param desired_replication_level Desired replication level.
* @param exp Expiration time of the data.
* @param key Key under which data is to be stored.
* @param data Pointer to the data carried.
* @param size Number of bytes in data.
*/
void
GDS_CLIENTS_process_put (uint32_t options,
enum GNUNET_BLOCK_Type type,
uint32_t hop_count,
uint32_t desired_replication_level,
unsigned int path_length,
const struct GNUNET_PeerIdentity *path,
struct GNUNET_TIME_Absolute exp,
const struct GNUNET_HashCode *key,
const void *data,
size_t size);
#endif
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