void ShutdownInternalService()
{
if (_queue != null)
{
if (_streamPort != null)
{
_streamPort.Post(new Shutdown());
_streamPort = null;
}
ResourceManagerPort.Post(new FreeExecutionResource(_queue));
_queue = null;
}
}
IEnumerator <ITask> ReplaceHandler(Replace replace)
{
_state = replace.Body;
replace.ResponsePort.Post(DefaultReplaceResponseType.Instance);
SendNotification(_submgrPort, replace);
if (_streamPort != null)
{
_streamPort.Post(new Shutdown());
_streamPort = null;
}
if (!string.IsNullOrEmpty(_state.CaptureFile))
{
_streamPort = SaveStream.Create(_state.CaptureFile, _state.Quality, _queue);
}
yield break;
}
void TimeHandler(DateTime signal)
{
if (_shutdown || _reader.BaseStream.Position >= _reader.BaseStream.Length)
{
return;
}
int length = _reader.ReadInt32();
byte[] buffer = _reader.ReadBytes(length);
using (MemoryStream stream = new MemoryStream(buffer, false))
{
Frame frame = new Frame();
frame.Image = new Bitmap(stream);
frame.TimeStamp = _currFrame;
_port.Post(frame);
}
if (_reader.BaseStream.Position >= _reader.BaseStream.Length)
{
Activate(
Arbiter.Receive(false, TimeoutPort(2000),
delegate(DateTime t)
{
Frame frame = new Frame();
frame.Image = null;
frame.TimeStamp = _currFrame + TimeSpan.FromSeconds(2);
_port.Post(frame);
}
)
);
return;
}
DateTime lastFrame = _currFrame;
_currFrame = DateTime.FromBinary(_reader.ReadInt64());
TimeSpan offset = _currFrame - lastFrame;
int ms = (int)Math.Round(offset.TotalMilliseconds);
if (ms <= 0)
{
_timePort.Post(_currFrame);
}
else
{
ms = Math.Min(ms, 2000);
Activate(
Arbiter.Receive(false, TimeoutPort(ms),
delegate(DateTime t)
{
_timePort.Post(t);
}
)
);
}
}
