transmission/libtransmission/peer-io.h

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/*
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* This file Copyright (C) 2007-2008 Charles Kerr <charles@rebelbase.com>
*
* This file is licensed by the GPL version 2. Works owned by the
* Transmission project are granted a special exemption to clause 2(b)
* so that the bulk of its code can remain under the MIT license.
* This exemption does not extend to derived works not owned by
* the Transmission project.
*
* $Id$
*/
#ifndef TR_PEER_IO_H
#define TR_PEER_IO_H
/**
***
**/
struct in_addr;
struct evbuffer;
struct bufferevent;
struct tr_handle;
struct tr_crypto;
typedef struct tr_peerIo tr_peerIo;
typedef struct tr_extensions tr_extensions;
/**
***
**/
tr_peerIo*
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tr_peerIoNewOutgoing( struct tr_handle * handle,
const struct in_addr * addr,
int port,
const uint8_t * torrentHash );
tr_peerIo*
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tr_peerIoNewIncoming( struct tr_handle * handle,
const struct in_addr * addr,
uint16_t port,
int socket );
void tr_peerIoFree ( tr_peerIo * io );
tr_handle* tr_peerIoGetHandle( tr_peerIo * io );
/**
***
**/
void tr_peerIoEnableLTEP( tr_peerIo * io, int flag );
void tr_peerIoEnableFEXT( tr_peerIo * io, int flag );
int tr_peerIoSupportsLTEP( const tr_peerIo * io );
int tr_peerIoSupportsFEXT( const tr_peerIo * io );
/**
***
**/
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const char*
tr_peerIoAddrStr( const struct in_addr * addr, uint16_t port );
const char*
tr_peerIoGetAddrStr( const tr_peerIo * io );
const struct in_addr*
tr_peerIoGetAddress( const tr_peerIo * io, uint16_t * port );
const uint8_t*
tr_peerIoGetTorrentHash( tr_peerIo * io );
int tr_peerIoHasTorrentHash( const tr_peerIo * io );
void tr_peerIoSetTorrentHash( tr_peerIo * io,
const uint8_t * hash );
int tr_peerIoReconnect( tr_peerIo * io );
int tr_peerIoIsIncoming( const tr_peerIo * io );
void tr_peerIoSetTimeoutSecs( tr_peerIo * io, int secs );
int tr_peerIoGetAge( const tr_peerIo * io );
/**
***
**/
void tr_peerIoSetPeersId( tr_peerIo * io,
const uint8_t * peer_id );
const uint8_t*
tr_peerIoGetPeersId( const tr_peerIo * io );
/**
***
**/
typedef enum { READ_MORE, READ_AGAIN, READ_DONE } ReadState;
typedef ReadState (*tr_can_read_cb)(struct bufferevent*, void* user_data);
typedef void (*tr_did_write_cb)(struct bufferevent *, void *);
typedef void (*tr_net_error_cb)(struct bufferevent *, short what, void *);
void tr_peerIoSetIOFuncs( tr_peerIo * io,
tr_can_read_cb readcb,
tr_did_write_cb writecb,
tr_net_error_cb errcb,
void * user_data );
size_t tr_peerIoWriteBytesWaiting( const tr_peerIo * io );
void tr_peerIoTryRead( tr_peerIo * io );
void tr_peerIoWrite( tr_peerIo * io,
const void * writeme,
int writeme_len );
void tr_peerIoWriteBuf( tr_peerIo * io,
struct evbuffer * buf );
/**
***
**/
struct tr_crypto* tr_peerIoGetCrypto( tr_peerIo * io );
typedef enum
{
/* these match the values in MSE's crypto_select */
PEER_ENCRYPTION_NONE = (1<<0),
PEER_ENCRYPTION_RC4 = (1<<1)
}
EncryptionMode;
void tr_peerIoSetEncryption( tr_peerIo * io,
int encryptionMode );
int tr_peerIoIsEncrypted( const tr_peerIo * io );
void tr_peerIoWriteBytes ( tr_peerIo * io,
struct evbuffer * outbuf,
const void * bytes,
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size_t byteCount );
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void tr_peerIoWriteUint8 ( tr_peerIo * io,
struct evbuffer * outbuf,
uint8_t writeme );
void tr_peerIoWriteUint16 ( tr_peerIo * io,
struct evbuffer * outbuf,
uint16_t writeme );
void tr_peerIoWriteUint32 ( tr_peerIo * io,
struct evbuffer * outbuf,
uint32_t writeme );
void tr_peerIoReadBytes ( tr_peerIo * io,
struct evbuffer * inbuf,
void * bytes,
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size_t byteCount );
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void tr_peerIoReadUint8 ( tr_peerIo * io,
struct evbuffer * inbuf,
uint8_t * setme );
void tr_peerIoReadUint16 ( tr_peerIo * io,
struct evbuffer * inbuf,
uint16_t * setme );
void tr_peerIoReadUint32 ( tr_peerIo * io,
struct evbuffer * inbuf,
uint32_t * setme );
void tr_peerIoDrain ( tr_peerIo * io,
struct evbuffer * inbuf,
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size_t byteCount );
#endif