transmission/libtransmission/completion.h

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/*
* This file Copyright (C) 2009 Charles Kerr <charles@transmissionbt.com>
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*
* This file is licensed by the GPL version 2. Works owned by the
* 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.
* This exemption does not extend to derived works not owned by
* the Transmission project.
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*
* $Id$
*/
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#ifndef TR_COMPLETION_H
#define TR_COMPLETION_H
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#ifndef __TRANSMISSION__
#error only libtransmission should #include this header.
#endif
#include <assert.h>
#include "transmission.h"
#include "bitfield.h"
#include "utils.h" /* tr_bitfield */
typedef struct tr_completion
{
tr_bool sizeWhenDoneIsDirty;
tr_bool haveValidIsDirty;
tr_torrent * tor;
/* do we have this block? */
tr_bitfield blockBitfield;
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/* do we have this piece? */
tr_bitfield pieceBitfield;
/* a block is complete if and only if we have it */
uint16_t * completeBlocks;
/* number of bytes we'll have when done downloading. [0..info.totalSize]
DON'T access this directly; it's a lazy field.
use tr_cpSizeWhenDone() instead! */
uint64_t sizeWhenDoneLazy;
/* number of bytes we'll have when done downloading. [0..info.totalSize]
DON'T access this directly; it's a lazy field.
use tr_cpHaveValid() instead! */
uint64_t haveValidLazy;
/* number of bytes we want or have now. [0..sizeWhenDone] */
uint64_t sizeNow;
}
tr_completion;
/**
*** Life Cycle
**/
tr_completion * tr_cpConstruct( tr_completion *, tr_torrent * );
tr_completion * tr_cpDestruct( tr_completion * );
static TR_INLINE tr_completion* tr_cpNew( tr_torrent * tor )
{
return tr_cpConstruct( tr_new0( tr_completion, 1 ), tor );
}
static TR_INLINE void tr_cpFree( tr_completion * cp )
{
tr_free( tr_cpDestruct( cp ) );
}
/**
*** General
**/
tr_completeness tr_cpGetStatus( const tr_completion * );
uint64_t tr_cpHaveValid( const tr_completion * );
uint64_t tr_cpSizeWhenDone( const tr_completion * );
void tr_cpInvalidateDND( tr_completion * );
void tr_cpGetAmountDone( const tr_completion * completion,
float * tab,
int tabCount );
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static TR_INLINE uint64_t tr_cpHaveTotal( const tr_completion * cp )
{
return cp->sizeNow;
}
static TR_INLINE uint64_t tr_cpLeftUntilComplete( const tr_completion * cp )
{
return tr_torrentInfo(cp->tor)->totalSize - cp->sizeNow;
}
static TR_INLINE uint64_t tr_cpLeftUntilDone( const tr_completion * cp )
{
return tr_cpSizeWhenDone( cp ) - cp->sizeNow;
}
static TR_INLINE float tr_cpPercentComplete( const tr_completion * cp )
{
return tr_getRatio( cp->sizeNow, tr_torrentInfo(cp->tor)->totalSize );
}
static TR_INLINE float tr_cpPercentDone( const tr_completion * cp )
{
const double ratio = tr_getRatio( cp->sizeNow, tr_cpSizeWhenDone( cp ) );
return (ratio == TR_RATIO_NA || ratio == TR_RATIO_INF) ? 0.0f : ratio;
}
/**
*** Pieces
**/
int tr_cpMissingBlocksInPiece( const tr_completion * cp,
tr_piece_index_t piece );
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tr_bool tr_cpPieceIsComplete( const tr_completion * cp,
tr_piece_index_t piece );
void tr_cpPieceAdd( tr_completion * completion,
tr_piece_index_t piece );
void tr_cpPieceRem( tr_completion * completion,
tr_piece_index_t piece );
tr_bool tr_cpFileIsComplete( const tr_completion * cp, tr_file_index_t );
/**
*** Blocks
**/
static TR_INLINE tr_bool tr_cpBlockIsCompleteFast( const tr_completion * cp, tr_block_index_t block )
{
return tr_bitfieldHasFast( &cp->blockBitfield, block );
}
static TR_INLINE tr_bool tr_cpBlockIsComplete( const tr_completion * cp, tr_block_index_t block )
{
return tr_bitfieldHas( &cp->blockBitfield, block );
}
void tr_cpBlockAdd( tr_completion * completion,
tr_block_index_t block );
tr_bool tr_cpBlockBitfieldSet( tr_completion * completion,
struct tr_bitfield * blocks );
/***
****
***/
static TR_INLINE const struct tr_bitfield * tr_cpPieceBitfield( const tr_completion * cp ) {
return &cp->pieceBitfield;
}
static TR_INLINE const struct tr_bitfield * tr_cpBlockBitfield( const tr_completion * cp ) {
assert( cp );
assert( cp->blockBitfield.bits );
assert( cp->blockBitfield.bitCount );
return &cp->blockBitfield;
}
#endif