public void GetBlock(byte[] buffer, int pieceIndex, int offset, int length, BlockReadDelegate callback, object state)
{
try
{
IEnumerable <BlockPartInfo> parts = GetParts(pieceIndex, offset, length, false);
var block = new Block(buffer, pieceIndex, offset, length);
BlockReadState data = readCache.Get().Init(block, callback, length, state);
if (parts.Count() > 1)
{
Trace.WriteLine(pieceIndex + " is split between " + parts.Count() + " files.");
}
foreach (BlockPartInfo part in parts)
{
if (part.FileStream != null)
{
DiskIO.QueueRead(part.FileStream, buffer, part.DataOffset, part.FileOffset, part.Length, EndGetBlock, data);
}
else
{
OnRaisedException(new TorrentException("Stream is null."));
callback(false, null, state);
return;
}
}
}
catch (Exception e)
{
OnRaisedException(new TorrentException(e.Message, e));
callback(false, null, state);
}
}
public void AddBlock(Block block, BlockWrittenDelegate callback, object state)
{
try
{
IEnumerable <BlockPartInfo> parts = GetParts(block.Info.Index, block.Info.Offset, block.Info.Length, true);
var totalLen = parts.Sum(p => p.Length);
BlockWriteState data = writeCache.Get().Init(callback, (int)totalLen, block, state);
Trace.Assert(parts.Any());
foreach (BlockPartInfo part in parts)
{
DiskIO.QueueWrite(part.FileStream, block.Data, part.FileOffset, part.DataOffset, part.Length,
EndAddBlock, data);
}
}
catch (Exception e)
{
OnRaisedException(new TorrentException(e.Message, e));
callback(false, state);
}
}