transmission/libtransmission/inout.h

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005-2006 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#ifndef TR_IO_H
#define TR_IO_H 1
struct tr_torrent;
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typedef struct tr_io tr_io;
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/***********************************************************************
* tr_ioRead, tr_ioWrite
***********************************************************************
* Reads or writes the block specified by the piece index, the offset in
* that piece and the size of the block. Returns 0 if successful,
* TR_ERROR_ASSERT if the parameters are incorrect, one of the
* TR_ERROR_IO_* otherwise.
**********************************************************************/
int tr_ioRead ( struct tr_torrent*, int index, int begin, int len, uint8_t * );
int tr_ioWrite ( struct tr_torrent *, int index, int begin, int len, const uint8_t * );
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/* hashes the specified piece and updates the completion accordingly. */
int tr_ioHash ( tr_torrent*, int piece );
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/**
***
**/
typedef void (*tr_recheck_done_cb)( tr_torrent * tor );
void tr_ioRecheckAdd( tr_torrent * tor,
tr_recheck_done_cb recheck_done_cb );
void tr_ioRecheckRemove( tr_torrent * tor );
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/**
***
**/
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#endif