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/*
This file is part of GNUnet.
Copyright (C) 2009-2013 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/>.
*/
/**
* @file gns/gnunet-service-gns_resolver.h
* @brief GNUnet GNS service
* @author Martin Schanzenbach
*/
#ifndef GNS_RESOLVER_H
#define GNS_RESOLVER_H
#include "gns.h"
#include "gnunet_dht_service.h"
#include "gnunet_gns_service.h"
#include "gnunet_namecache_service.h"
/**
* Initialize the resolver subsystem.
* MUST be called before #GNS_resolver_lookup.
*
* @param nc the namecache handle
* @param dht handle to the dht
* @param c configuration handle
* @param max_bg_queries maximum amount of background queries
*/
void
GNS_resolver_init (struct GNUNET_NAMECACHE_Handle *nc,
struct GNUNET_DHT_Handle *dht,
const struct GNUNET_CONFIGURATION_Handle *c,
unsigned long long max_bg_queries);
/**
* Cleanup resolver: Terminate pending lookups
*/
void
GNS_resolver_done (void);
/**
* Handle for an active request.
*/
struct GNS_ResolverHandle;
/**
* Function called with results for a GNS resolution.
*
* @param cls closure
* @param rd_count number of records in @a rd
* @param rd records returned for the lookup
*/
typedef void
(*GNS_ResultProcessor)(void *cls,
uint32_t rd_count,
const struct GNUNET_GNSRECORD_Data *rd);
/**
* Lookup of a record in a specific zone
* calls RecordLookupProcessor on result or timeout
*
* @param zone the zone to perform the lookup in
* @param record_type the record type to look up
* @param name the name to look up
* @param options options set to control local lookup
* @param proc the processor to call
* @param proc_cls the closure to pass to @a proc
* @return handle to cancel operation
*/
struct GNS_ResolverHandle *
GNS_resolver_lookup (const struct GNUNET_CRYPTO_EcdsaPublicKey *zone,
uint32_t record_type,
const char *name,
enum GNUNET_GNS_LocalOptions options,
GNS_ResultProcessor proc,
void *proc_cls);
/**
* Cancel active resolution (i.e. client disconnected).
*
* @param rh resolution to abort
*/
void
GNS_resolver_lookup_cancel (struct GNS_ResolverHandle *rh);
#endif
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