private void DoReadahead()
{
if (raPool != null && inFd != null && readahead)
{
curReadahead = raPool.ReadaheadStream("ifile", inFd, currentOffset, readaheadLength
, dataLength, curReadahead);
}
}
/// <exception cref="System.Exception"/>
public override object NextChunk()
{
if (manageOsCache && readaheadPool != null)
{
readaheadRequest = readaheadPool.ReadaheadStream(identifier, fd, GetCurrentOffset
(), readaheadLength, GetEndOffset(), readaheadRequest);
}
return(base.NextChunk());
}
/// <exception cref="System.IO.IOException"/>
public override long TransferTo(WritableByteChannel target, long position)
{
if (manageOsCache && readaheadPool != null)
{
readaheadRequest = readaheadPool.ReadaheadStream(identifier, fd, GetPosition() +
position, readaheadLength, GetPosition() + GetCount(), readaheadRequest);
}
if (this.shuffleTransferToAllowed)
{
return(base.TransferTo(target, position));
}
else
{
return(CustomShuffleTransfer(target, position));
}
}