source: branches/oneport/libtransmission/utils.h @ 40

Last change on this file since 40 was 40, checked in by joshe, 16 years ago

More random debug stuff, also actually change the port right away via the gtk prefs.

File size: 5.1 KB
Line 
1/******************************************************************************
2 * Copyright (c) 2005 Eric Petit
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 *****************************************************************************/
22
23#ifndef TR_UTILS_H
24#define TR_UTILS_H 1
25
26#define TR_MSG_ERR 1
27#define TR_MSG_INF 2
28#define TR_MSG_DBG 4
29#define tr_err( a... ) tr_msg( TR_MSG_ERR, ## a )
30#define tr_inf( a... ) tr_msg( TR_MSG_INF, ## a )
31#define tr_dbg( a... ) tr_msg( TR_MSG_DBG, ## a )
32void tr_msg  ( int level, char * msg, ... ) __attribute__ ((format (printf, 2, 3)));
33
34int  tr_rand ( int );
35
36/***********************************************************************
37 * tr_date
38 ***********************************************************************
39 * Returns the current date in milliseconds
40 **********************************************************************/
41static inline uint64_t tr_date()
42{
43    struct timeval tv;
44    gettimeofday( &tv, NULL );
45    return (uint64_t) tv.tv_sec * 1000 + ( tv.tv_usec / 1000 );
46}
47
48/***********************************************************************
49 * tr_wait
50 ***********************************************************************
51 * Wait 'delay' milliseconds
52 **********************************************************************/
53static inline void tr_wait( uint64_t delay )
54{
55#ifdef SYS_BEOS
56    snooze( 1000 * delay );
57#else
58    usleep( 1000 * delay );
59#endif
60}
61
62/***********************************************************************
63 * tr_bitfieldHas
64 **********************************************************************/
65static inline int tr_bitfieldHas( uint8_t * bitfield, int piece )
66{
67    return ( bitfield[ piece / 8 ] & ( 1 << ( 7 - ( piece % 8 ) ) ) );
68}
69
70/***********************************************************************
71 * tr_bitfieldAdd
72 **********************************************************************/
73static inline void tr_bitfieldAdd( uint8_t * bitfield, int piece )
74{
75    bitfield[ piece / 8 ] |= ( 1 << ( 7 - ( piece % 8 ) ) );
76}
77
78static inline void tr_bitfieldRem( uint8_t * bitfield, int piece )
79{
80    bitfield[ piece / 8 ] &= ~( 1 << ( 7 - ( piece % 8 ) ) );
81}
82
83#define tr_blockPiece(a) _tr_blockPiece(tor,a)
84static inline int _tr_blockPiece( tr_torrent_t * tor, int block )
85{
86    tr_info_t * inf = &tor->info;
87    return block / ( inf->pieceSize / tor->blockSize );
88}
89
90#define tr_blockSize(a) _tr_blockSize(tor,a)
91static inline int _tr_blockSize( tr_torrent_t * tor, int block )
92{
93    tr_info_t * inf = &tor->info;
94    int dummy;
95
96    if( block != tor->blockCount - 1 ||
97        !( dummy = inf->totalSize % tor->blockSize ) )
98    {
99        return tor->blockSize;
100    }
101
102    return dummy;
103}
104
105#define tr_blockPosInPiece(a) _tr_blockPosInPiece(tor,a)
106static inline int _tr_blockPosInPiece( tr_torrent_t * tor, int block )
107{
108    tr_info_t * inf = &tor->info;
109    return tor->blockSize *
110        ( block % ( inf->pieceSize / tor->blockSize ) );
111}
112
113#define tr_pieceCountBlocks(a) _tr_pieceCountBlocks(tor,a)
114static inline int _tr_pieceCountBlocks( tr_torrent_t * tor, int piece )
115{
116    tr_info_t * inf = &tor->info;
117    if( piece < inf->pieceCount - 1 ||
118        !( tor->blockCount % ( inf->pieceSize / tor->blockSize ) ) )
119    {
120        return inf->pieceSize / tor->blockSize;
121    }
122    return tor->blockCount % ( inf->pieceSize / tor->blockSize );
123}
124
125#define tr_pieceStartBlock(a) _tr_pieceStartBlock(tor,a)
126static inline int _tr_pieceStartBlock( tr_torrent_t * tor, int piece )
127{
128    tr_info_t * inf = &tor->info;
129    return piece * ( inf->pieceSize / tor->blockSize );
130}
131
132#define tr_pieceSize(a) _tr_pieceSize(tor,a)
133static inline int _tr_pieceSize( tr_torrent_t * tor, int piece )
134{
135    tr_info_t * inf = &tor->info;
136    if( piece < inf->pieceCount - 1 ||
137        !( inf->totalSize % inf->pieceSize ) )
138    {
139        return inf->pieceSize;
140    }
141    return inf->totalSize % inf->pieceSize;
142}
143
144#define tr_block(a,b) _tr_block(tor,a,b)
145static inline int _tr_block( tr_torrent_t * tor, int index, int begin )
146{
147    tr_info_t * inf = &tor->info;
148    return index * ( inf->pieceSize / tor->blockSize ) +
149        begin / tor->blockSize;
150}
151
152#endif
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