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(trunk libT) faster tr_cpBlockBitfieldSet()

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This commit is contained in:
Charles Kerr 2009-01-06 07:45:15 +00:00
parent 2a6c7dd0fa
commit 7581f04242
1 changed files with 48 additions and 2 deletions
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50
libtransmission/completion.c
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@ -35,8 +35,7 @@ tr_cpReset( tr_completion * cp )
{
tr_bitfieldClear( &cp->pieceBitfield );
tr_bitfieldClear( &cp->blockBitfield );
memset( cp->completeBlocks, 0,
sizeof( uint16_t ) * cp->tor->info.pieceCount );
memset( cp->completeBlocks, 0, sizeof( uint16_t ) * cp->tor->info.pieceCount );
cp->sizeNow = 0;
cp->sizeWhenDoneIsDirty = 1;
cp->haveValidIsDirty = 1;
@ -178,6 +177,7 @@ tr_cpBlockAdd( tr_completion * cp,
}
}
#if 0
int
tr_cpBlockBitfieldSet( tr_completion * cp,
tr_bitfield * bitfield )
@ -199,6 +199,52 @@ tr_cpBlockBitfieldSet( tr_completion * cp,
return success;
}
#endif
int
tr_cpBlockBitfieldSet( tr_completion * cp, tr_bitfield * blockBitfield )
{
int success = FALSE;
assert( cp );
assert( blockBitfield );
if(( success = tr_bitfieldTestFast( blockBitfield, cp->tor->blockCount - 1 )))
{
tr_piece_index_t p;
const tr_torrent * tor = cp->tor;
tr_cpReset( cp );
for( p=0; p<tor->info.pieceCount; ++p )
{
tr_block_index_t i;
uint16_t completeBlocksInPiece = 0;
const tr_block_index_t start = tr_torPieceFirstBlock( tor, p );
const tr_block_index_t end = start + tr_torPieceCountBlocks( tor, p );
for( i=start; i!=end; ++i ) {
if( tr_bitfieldTestFast( blockBitfield, i ) ) {
++completeBlocksInPiece;
cp->sizeNow += tr_torBlockCountBytes( tor, i );
}
}
cp->completeBlocks[p] = completeBlocksInPiece;
if( completeBlocksInPiece == end - start )
tr_bitfieldAdd( &cp->pieceBitfield, p );
}
memcpy( cp->blockBitfield->bits, blockBitfield->bits, cp->blockBitfield->byteCount );
cp->haveValidIsDirty = 1;
cp->sizeWhenDoneIsDirty = 1;
}
return success;
}
/***
****