mirror of
https://github.com/transmission/transmission
synced 2024-12-25 01:03:01 +00:00
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*
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* This file Copyright (C) Mnemosyne LLC
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*
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* This file is licensed by the GPL version 2. Works owned by the
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* Transmission project are granted a special exemption to clause 2(b)
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* so that the bulk of its code can remain under the MIT license.
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* This exemption does not extend to derived works not owned by
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* the Transmission project.
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*
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* $Id$
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*/
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#ifndef TR_PEER_H
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#define TR_PEER_H
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/**
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* @addtogroup peers Peers
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* @{
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*/
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/**
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*** Fields common to webseed and bittorrent peers
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**/
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#include "transmission.h"
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struct tr_bitfield;
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enum
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{
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/** when we're making requests from another peer,
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batch them together to send enough requests to
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meet our bandwidth goals for the next N seconds */
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REQUEST_BUF_SECS = 10,
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/** this is the maximum size of a block request.
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most bittorrent clients will reject requests
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larger than this size. */
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MAX_BLOCK_SIZE = ( 1024 * 16 )
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};
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/**
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*** Peer Publish / Subscribe
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**/
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typedef enum
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{
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TR_PEER_CLIENT_GOT_BLOCK,
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TR_PEER_CLIENT_GOT_CHOKE,
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TR_PEER_CLIENT_GOT_DATA,
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TR_PEER_CLIENT_GOT_ALLOWED_FAST,
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TR_PEER_CLIENT_GOT_SUGGEST,
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TR_PEER_CLIENT_GOT_PORT,
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TR_PEER_CLIENT_GOT_REJ,
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TR_PEER_CLIENT_GOT_BITFIELD,
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TR_PEER_CLIENT_GOT_HAVE,
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TR_PEER_CLIENT_GOT_HAVE_ALL,
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TR_PEER_CLIENT_GOT_HAVE_NONE,
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TR_PEER_PEER_GOT_DATA,
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TR_PEER_ERROR
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}
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PeerEventType;
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typedef struct
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{
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PeerEventType eventType;
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uint32_t pieceIndex; /* for GOT_BLOCK, GOT_HAVE, CANCEL, ALLOWED, SUGGEST */
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struct tr_bitfield * bitfield; /* for GOT_BITFIELD */
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uint32_t offset; /* for GOT_BLOCK */
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uint32_t length; /* for GOT_BLOCK + GOT_DATA */
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int err; /* errno for GOT_ERROR */
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bool wasPieceData; /* for GOT_DATA */
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tr_port port; /* for GOT_PORT */
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}
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tr_peer_event;
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extern const tr_peer_event TR_PEER_EVENT_INIT;
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struct tr_peer;
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typedef void tr_peer_callback( struct tr_peer * peer,
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const tr_peer_event * event,
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void * client_data );
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/** Update the tr_peer.progress field based on the 'have' bitset. */
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void tr_peerUpdateProgress( tr_torrent * tor, struct tr_peer * );
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#ifdef WIN32
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#define EMSGSIZE WSAEMSGSIZE
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#endif
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/** @} */
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#endif
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