public void PushChunk(byte[] buffer, int length)
{
if (buffer == null)
{
_queueChunks.Enqueue(null);
_queueWaiter.Set();
return;
}
if (!chunkStore.TryDequeue(out StreamChunk chunk))
{
chunk = new StreamChunk(new byte[buffer.Length]);
}
Array.Copy(buffer, 0, chunk.Buffer, 0, length);
chunk.Length = length;
_queueChunks.Enqueue(chunk);
_queueWaiter.Set();
}
public override int Read(byte[] buffer, int offset, int count)
{
if (_finished)
{
return(0);
}
if (_chunk == null || _position == _chunk.Length)
{
_chunk = PopChunk(CancellationToken.None);
if (_chunk == null || _chunk.Length == 0)
{
_finished = true;
return(0);
}
_position = 0;
}
var bufferAvailable = _chunk.Length - _position;
if (bufferAvailable >= count)
{
Array.Copy(_chunk.Buffer, _position, buffer, offset, count);
_position += count;
}
else
{
count = bufferAvailable;
Array.Copy(_chunk.Buffer, _position, buffer, offset, count);
_position = 0;
chunkStore.Enqueue(_chunk);
_chunk = null;
}
return(count);
}
public override int Read(byte[] buffer, int offset, int count)
{
if (IsFinised)
{
return(0);
}
if (_chunk == null || _position == _chunk.Length)
{
if (IsDirect && _queueChunks.IsEmpty)
{
try
{
return(WriteBackStream.Read(buffer, offset, count));
}
catch
{
return(0);
}
}
_chunk = PopChunk(CancellationToken.None);
if (_chunk == null || _chunk.Length == 0)
{
if (IsDirect)
{
try
{
return(WriteBackStream.Read(buffer, offset, count));
}
catch
{
return(0);
}
}
IsFinised = true;
return(0);
}
_position = 0;
}
var bufferAvailable = _chunk.Length - _position;
if (bufferAvailable >= count)
{
Array.Copy(_chunk.Buffer, _position, buffer, offset, count);
_position += count;
}
else
{
count = bufferAvailable;
Array.Copy(_chunk.Buffer, _position, buffer, offset, count);
_position = 0;
chunkStore.Enqueue(_chunk);
_chunk = null;
}
return(count);
}
