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* make tr_cpLeftUntilDone() slightly more accurate 

* simplify completion code a little
This commit is contained in:
Charles Kerr 2007-06-30 12:54:26 +00:00
parent 2b1cf88ea9
commit 05ca8403c6
1 changed files with 25 additions and 58 deletions
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83
libtransmission/completion.c
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@ -32,9 +32,6 @@ struct tr_completion_s
uint8_t * blockDownloaders;
tr_bitfield_t * pieceBitfield;
/* a block is missing if we don't have it AND there's not a request pending */
int * missingBlocks;
/* a block is complete if and only if we have it */
int * completeBlocks;
@ -44,8 +41,9 @@ struct tr_completion_s
int nBlocksInLastPiece;
};
#define tr_cpCountBlocks(cp,piece) \
(piece==cp->tor->info.pieceCount-1 ? cp->nBlocksInLastPiece : cp->nBlocksInPiece)
#define tr_cpCountBlocks(cp,piece) (piece==cp->tor->info.pieceCount-1 \
? cp->nBlocksInLastPiece \
: cp->nBlocksInPiece)
tr_completion_t * tr_cpInit( tr_torrent_t * tor )
{
@ -56,7 +54,6 @@ tr_completion_t * tr_cpInit( tr_torrent_t * tor )
cp->blockBitfield = tr_bitfieldNew( tor->blockCount );
cp->blockDownloaders = tr_new( uint8_t, tor->blockCount );
cp->pieceBitfield = tr_bitfieldNew( tor->info.pieceCount );
cp->missingBlocks = tr_new( int, tor->info.pieceCount );
cp->completeBlocks = tr_new( int, tor->info.pieceCount );
cp->nBlocksInLastPiece = tr_pieceCountBlocks ( tor->info.pieceCount - 1 );
@ -71,7 +68,6 @@ tr_completion_t * tr_cpInit( tr_torrent_t * tor )
void tr_cpClose( tr_completion_t * cp )
{
tr_free( cp->completeBlocks );
tr_free( cp->missingBlocks );
tr_bitfieldFree( cp->pieceBitfield );
tr_free( cp->blockDownloaders );
tr_bitfieldFree( cp->blockBitfield );
@ -86,10 +82,8 @@ void tr_cpReset( tr_completion_t * cp )
tr_bitfieldClear( cp->blockBitfield );
memset( cp->blockDownloaders, 0, tor->blockCount );
tr_bitfieldClear( cp->pieceBitfield );
for( i = 0; i < tor->info.pieceCount; ++i ) {
cp->missingBlocks[i] = tr_cpCountBlocks( cp, i );
for( i = 0; i < tor->info.pieceCount; ++i )
cp->completeBlocks[i] = 0;
}
}
int tr_cpPieceHasAllBlocks( const tr_completion_t * cp, int piece )
@ -112,74 +106,41 @@ const tr_bitfield_t * tr_cpPieceBitfield( const tr_completion_t * cp )
void tr_cpPieceAdd( tr_completion_t * cp, int piece )
{
int i;
const tr_torrent_t * tor = cp->tor;
const int n_blocks = tr_cpCountBlocks( cp, piece );
const int startBlock = tr_pieceStartBlock( piece );
const int endBlock = startBlock + n_blocks;
cp->completeBlocks[piece] = n_blocks;
for( i=startBlock; i<endBlock; ++i )
if( !cp->blockDownloaders[i] )
--cp->missingBlocks[piece];
tr_bitfieldAddRange( cp->blockBitfield, startBlock, endBlock-1 );
tr_bitfieldAdd( cp->pieceBitfield, piece );
}
void tr_cpPieceRem( tr_completion_t * cp, int piece )
{
int i;
const tr_torrent_t * tor = cp->tor;
const int n_blocks = tr_cpCountBlocks( cp, piece );
const int startBlock = tr_pieceStartBlock( piece );
const int endBlock = startBlock + n_blocks;
cp->completeBlocks[piece] = 0;
for( i=startBlock; i<endBlock; ++i )
if( !cp->blockDownloaders[i] )
++cp->missingBlocks[piece];
tr_bitfieldRemRange ( cp->blockBitfield, startBlock, endBlock-1 );
tr_bitfieldRem( cp->pieceBitfield, piece );
}
/* Blocks */
void tr_cpDownloaderAdd( tr_completion_t * cp, int block )
{
tr_torrent_t * tor = cp->tor;
if( !cp->blockDownloaders[block] && !tr_cpBlockIsComplete( cp, block ) )
{
cp->missingBlocks[tr_blockPiece(block)]--;
}
(cp->blockDownloaders[block])++;
++cp->blockDownloaders[block];
}
void tr_cpDownloaderRem( tr_completion_t * cp, int block )
{
tr_torrent_t * tor;
assert( cp != NULL );
assert( cp->tor != NULL );
assert( 0 <= block );
tor = cp->tor;
(cp->blockDownloaders[block])--;
if( !cp->blockDownloaders[block] && !tr_cpBlockIsComplete( cp, block ) )
{
cp->missingBlocks[tr_blockPiece(block)]++;
}
--cp->blockDownloaders[block];
}
int tr_cpBlockIsComplete( const tr_completion_t * cp, int block )
{
assert( cp != NULL );
assert( 0 <= block );
return tr_bitfieldHas( cp->blockBitfield, block );
}
@ -201,9 +162,6 @@ void tr_cpBlockAdd( tr_completion_t * cp, int block )
if( cp->completeBlocks[piece] == tr_cpCountBlocks( cp, piece ) )
tr_bitfieldAdd( cp->pieceBitfield, piece );
if( !cp->blockDownloaders[block] )
cp->missingBlocks[piece]--;
tr_bitfieldAdd( cp->blockBitfield, block );
}
}
@ -237,6 +195,23 @@ float tr_cpPercentBlocksInPiece( const tr_completion_t * cp, int piece )
return cp->completeBlocks[piece] / (double)tr_cpCountBlocks( cp, piece );
}
int
tr_cpMissingBlocksForPiece( const tr_completion_t * cp, int piece )
{
int i;
int n;
const tr_torrent_t * tor = cp->tor;
const int start = tr_pieceStartBlock( piece );
const int end = start + tr_cpCountBlocks( cp, piece );
n = 0;
for( i = start; i < end; ++i )
if( !tr_cpBlockIsComplete( cp, i ) && !cp->blockDownloaders[i] )
++n;
return n;
}
int tr_cpMissingBlockInPiece( const tr_completion_t * cp, int piece )
{
int i;
@ -299,14 +274,6 @@ int tr_cpMostMissingBlockInPiece( const tr_completion_t * cp,
}
int
tr_cpMissingBlocksForPiece( const tr_completion_t * cp, int piece )
{
assert( cp != NULL );
return cp->missingBlocks[piece];
}
/***
****
***/
@ -369,9 +336,9 @@ tr_cpLeftUntilDone ( const tr_completion_t * cp )
for( i=0; i<info->pieceCount; ++i )
if( !tr_cpPieceIsComplete( cp, i ) && info->pieces[i].priority != TR_PRI_DND )
b += tor->blockSize * (tr_cpCountBlocks( cp, i ) - cp->completeBlocks[ i ] );
b += ( tr_cpCountBlocks( cp, i ) - cp->completeBlocks[ i ] );
return b;
return b * tor->blockSize;
}
float