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/*
This file is part of GNUnet.
(C) 2001, 2002, 2003, 2004, 2009 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @author Christian Grothoff
* @author Nathan Evans
* @file dht/dht.h
*/
#ifndef DHT_H_
#define DHT_H_
#define DEBUG_DHT GNUNET_YES
typedef void (*GNUNET_DHT_MessageReceivedHandler) (void *cls,
const struct GNUNET_MessageHeader
* msg);
/**
* Message which indicates the DHT should cancel outstanding
* requests and discard any state.
*/
struct GNUNET_DHT_StopMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_STOP
*/
struct GNUNET_MessageHeader header;
/**
* Always zero.
*/
uint32_t reserved GNUNET_PACKED;
/**
* Unique ID identifying this request
*/
uint64_t unique_id GNUNET_PACKED;
};
/**
* Generic DHT message, indicates that a route request
* should be issued.
*/
struct GNUNET_DHT_RouteMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_ROUTE
*/
struct GNUNET_MessageHeader header;
/**
* Message options
*/
uint32_t options GNUNET_PACKED;
/**
* The key to search for
*/
GNUNET_HashCode key;
/**
* Unique ID identifying this request, if 0 then
* the client will not expect a response
*/
uint64_t unique_id GNUNET_PACKED;
/**
* Replication level for this message
*/
uint32_t desired_replication_level GNUNET_PACKED;
/* GNUNET_MessageHeader *enc actual DHT message, copied to end of this dealy do */
};
struct GNUNET_DHT_RouteResultMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_ROUTE_RESULT
*/
struct GNUNET_MessageHeader header;
/**
* Message options
*/
uint32_t options GNUNET_PACKED;
/**
* The key that was searched for
*/
GNUNET_HashCode key;
/**
* Unique ID identifying this request
*/
uint64_t unique_id GNUNET_PACKED;
/* GNUNET_MessageHeader *enc actual DHT message, copied to end of this dealy do */
};
/**
* Message to insert data into the DHT
*/
struct GNUNET_DHT_PutMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_PUT
*/
struct GNUNET_MessageHeader header;
/**
* The type of data to insert.
*/
size_t type GNUNET_PACKED;
/**
* How long should this data persist?
*/
struct GNUNET_TIME_AbsoluteNBO expiration;
/**
* The size of the data, appended to the end of this message.
*/
size_t data_size GNUNET_PACKED;
};
/**
* Message to request data from the DHT
*/
struct GNUNET_DHT_GetMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_GET
*/
struct GNUNET_MessageHeader header;
/**
* The type for the data for the GET request
*/
uint32_t type;
};
/**
* Message to return data from the DHT
*/
struct GNUNET_DHT_GetResultMessage
{
/**
* Type: GNUNET_MESSAGE_TYPE_DHT_GET_RESULT
*/
struct GNUNET_MessageHeader header;
/**
* The type for the data for the GET request
*/
uint32_t type;
/**
* The key to search for
*/
GNUNET_HashCode key;
/**
* When does this entry expire?
*/
struct GNUNET_TIME_Absolute expiration;
};
#endif /* DHT_H_ */
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