source: trunk/libtransmission/inout.h @ 11599

Last change on this file since 11599 was 11599, checked in by charles, 10 years ago

(trunk) Join the 21st century and use only 1 space at the end sentences. This commit is nearly as important as the semi-annual ones that remove trailing spaces from the ends of lines of code... :)

  • Property svn:keywords set to Date Rev Author Id
File size: 2.0 KB
Line 
1/*
2 * This file Copyright (C) 2008-2010 Mnemosyne LLC
3 *
4 * This file is licensed by the GPL version 2. Works owned by the
5 * Transmission project are granted a special exemption to clause 2(b)
6 * so that the bulk of its code can remain under the MIT license.
7 * This exemption does not extend to derived works not owned by
8 * the Transmission project.
9 *
10 * $Id: inout.h 11599 2010-12-27 19:18:17Z charles $
11 */
12
13#ifndef __TRANSMISSION__
14 #error only libtransmission should #include this header.
15#endif
16
17#ifndef TR_IO_H
18#define TR_IO_H 1
19
20struct tr_torrent;
21
22/**
23 * @addtogroup file_io File IO
24 * @{
25 */
26
27/**
28 * Reads the block specified by the piece index, offset, and length.
29 * @return 0 on success, or an errno value on failure.
30 */
31int tr_ioRead( struct tr_torrent   * tor,
32               tr_piece_index_t      pieceIndex,
33               uint32_t              offset,
34               uint32_t              len,
35               uint8_t             * setme );
36
37int
38tr_ioPrefetch( tr_torrent       * tor,
39               tr_piece_index_t   pieceIndex,
40               uint32_t           begin,
41               uint32_t           len );
42
43/**
44 * Writes the block specified by the piece index, offset, and length.
45 * @return 0 on success, or an errno value on failure.
46 */
47int tr_ioWrite( struct tr_torrent  * tor,
48                tr_piece_index_t     pieceIndex,
49                uint32_t             offset,
50                uint32_t             len,
51                const uint8_t      * writeme );
52
53/**
54 * @brief Test to see if the piece matches its metainfo's SHA1 checksum.
55 */
56tr_bool tr_ioTestPiece( tr_torrent       * tor,
57                        tr_piece_index_t   piece );
58
59
60/**
61 * Converts a piece index + offset into a file index + offset.
62 */
63void     tr_ioFindFileLocation( const tr_torrent * tor,
64                                tr_piece_index_t   pieceIndex,
65                                uint32_t           pieceOffset,
66                                tr_file_index_t *  fileIndex,
67                                uint64_t *         fileOffset );
68
69
70/* @} */
71#endif
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