public BufferedChunkWriter(Fiber fiber, Scheduler scheduler, ChunkWriter output, int bufferLengthInBytes)
{
_waitAfterMinFlush = 10.Milliseconds();
_fiber = fiber;
_scheduler = scheduler;
_output = output;
_inputBuffer = new Chunk(bufferLengthInBytes);
_outputBuffer = new Chunk(bufferLengthInBytes);
_minFlushLength = bufferLengthInBytes/2;
}
void FlushBuffer()
{
TimeSpan sleepInterval = TimeSpan.Zero;
try
{
lock (_lock)
{
while (_running && _inputBuffer.Length == 0)
Monitor.Wait(_lock);
if (!_running)
return;
Chunk swap = _outputBuffer;
_outputBuffer = _inputBuffer;
_inputBuffer = swap;
Monitor.PulseAll(_lock);
}
ArraySegment<byte> content = _outputBuffer.Content;
if (content.Count > 0)
{
_output.Write(content, _outputBuffer.NotifyUnsent);
_outputBuffer.Reset();
_blockCount++;
_byteCount += content.Count;
if (content.Count < _minFlushLength)
sleepInterval = _waitAfterMinFlush;
}
}
finally
{
if (_running)
{
if (sleepInterval != TimeSpan.Zero)
_scheduler.Schedule(sleepInterval, _fiber, FlushBuffer);
else
_fiber.Add(FlushBuffer);
}
}
}