private void BeginReading()
{
try
{
if (!(_bufferingMode is FrameBuffering))
{
lock (_readerSocketStreamBusy)
{
while (_readerSocketStreamBusy.Value)
{
Monitor.Wait(_readerSocketStreamBusy);
}
_readerSocketStreamBusy.Value = true;
}
}
lock (_readerSocketStream)
{
var rh = _readerSocketStream.BeginRead(_buffer[_bufNo], 0, _buffer[_bufNo].Length, new AsyncCallback((ar) =>
{
try
{
int bytesReadCount;
lock (_readerSocketStream)
bytesReadCount = _readerSocketStream.EndRead(ar);
if (bytesReadCount == 0)
{
if (_alreadyDisposed)
{
CompleteReader();
return;
}
throw new CassandraConnectionIOException();
}
else
{
foreach (var frame in _bufferingMode.Process(_buffer[_bufNo], bytesReadCount, _readerSocketStream, _compressor))
{
Action <ResponseFrame> act = null;
lock (_frameGuardier)
{
if (frame.FrameHeader.StreamId == 0xFF)
{
act = _frameEventCallback.Value;
}
else if (frame.FrameHeader.StreamId <= sbyte.MaxValue)
{
if (_frameReadTimers[frame.FrameHeader.StreamId] != null)
{
_frameReadTimers[frame.FrameHeader.StreamId].Change(Timeout.Infinite,
Timeout.Infinite);
}
act = _frameReadCallback[frame.FrameHeader.StreamId];
_frameReadCallback[frame.FrameHeader.StreamId] = null;
}
}
if (act == null)
{
throw new InvalidOperationException("Protocol error! Unmached response. Terminating all requests now...");
}
act.BeginInvoke(frame, (tar) =>
{
try
{
(tar.AsyncState as Action <ResponseFrame>).EndInvoke(tar);
}
catch (Exception ex)
{
SetupSocketException(ex);
}
finally
{
if (!(_bufferingMode is FrameBuffering))
{
if (IsHealthy)
{
BeginReading();
}
}
}
}, act);
}
_bufNo = 1 - _bufNo;
}
}
catch (Exception ex)
{
SetupSocketException(ex);
}
finally
{
if (_bufferingMode is FrameBuffering)
{
if (IsHealthy)
{
BeginReading();
}
}
else
{
lock (_readerSocketStreamBusy)
{
_readerSocketStreamBusy.Value = false;
Monitor.PulseAll(_readerSocketStreamBusy);
}
}
}
}), null);
}
}
catch (IOException e)
{
if (!SetupSocketException(e))
{
throw;
}
}
}
private void BeginReading()
{
try
{
if (!(_bufferingMode is FrameBuffering))
{
_readerSocketStreamBusy.WaitOne();
}
var rh = _socketStream.BeginRead(_buffer[_bufNo], 0, _buffer[_bufNo].Length, new AsyncCallback((ar) =>
{
try
{
// when already disposed, _socketStream.EndRead() throws exception
// when accessing disposed instance _socket internally.
// so need to check disposed first
if (_alreadyDisposed.IsTaken())
{
ForceComplete();
return;
}
int bytesReadCount = _socketStream.EndRead(ar);
if (bytesReadCount == 0)
{
if (_alreadyDisposed.IsTaken())
{
ForceComplete();
return;
}
throw new CassandraConnectionIOException();
}
else
{
foreach (var frame in _bufferingMode.Process(_buffer[_bufNo], bytesReadCount, _socketStream, _compressor))
{
Action <ResponseFrame> act = null;
if (frame.FrameHeader.StreamId == 0xFF)
{
act = _frameEventCallback.Value;
}
else if (frame.FrameHeader.StreamId <= sbyte.MaxValue)
{
if (_frameReadTimers[frame.FrameHeader.StreamId] != null)
{
_frameReadTimers[frame.FrameHeader.StreamId].Change(Timeout.Infinite,
Timeout.Infinite);
}
act = _frameReadCallback[frame.FrameHeader.StreamId];
_frameReadCallback[frame.FrameHeader.StreamId] = null;
}
if (act == null)
{
throw new InvalidOperationException("Protocol error! Unmached response. Terminating all requests now...");
}
act.BeginInvoke(frame, (tar) =>
{
try
{
(tar.AsyncState as Action <ResponseFrame>).EndInvoke(tar);
}
catch (Exception ex)
{
SetupSocketException(ex);
}
finally
{
if (!(_bufferingMode is FrameBuffering))
{
if (IsHealthy)
{
BeginReading();
}
}
}
}, act);
}
_bufNo = 1 - _bufNo;
}
}
catch (Exception ex)
{
SetupSocketException(ex);
}
finally
{
if (_bufferingMode is FrameBuffering)
{
if (IsHealthy)
{
BeginReading();
}
}
else
{
_readerSocketStreamBusy.Set();
}
}
}), null);
}
catch (IOException e)
{
if (!SetupSocketException(e))
{
throw;
}
}
}
