void WorkerThreadMain()
{
ISequence seq;
TimeSpan currentTime = TimeSpan.Zero;
Stopwatch progTime = new Stopwatch();
TimeSpan lastGraphPin = TimeSpan.Zero;
TimeSpan nextGraphPin = GraphPinInterval;
Stopwatch freeTime = new Stopwatch();
NetworkUdpFrame netframe;
while (isRunning)
{
// ### check incoming network traffic
WorkerProcessNetworkTraffic();
// ### check triggers
WorkerProcessTriggers();
// ### prepare next frame with preset time target
lock ( mProgramLock ) {
seq = mCurrentProgram;
if (mTimeResetNextFrame)
{
currentTime = TimeSpan.Zero;
mTimeResetNextFrame = false;
// @todo: HACK HACKITY HACK HACK
var glims = new List <IGlimDevice>();
Devices.ForEachDevice(g => glims.Add(g));
seq.SetDiscoveredDevices(glims);
// make bindings
Devices.ResetAllBindings(seq.Devices);
}
}
seq.SetCurrentTime(currentTime);
seq.FrameExecute();
netframe = new NetworkUdpFrame();
Devices.ForEachDevice(g => netframe.AddRange(g.IPEndPoint, g.MarshalNetworkMessages()));
if (TimeSpan.Zero == currentTime)
{
// ### special condition for first frame
Network.Send(netframe);
progTime.Restart();
lastGraphPin = TimeSpan.Zero;
nextGraphPin = GraphPinInterval;
}
else
{
// ### record some frame statistics..
if (progTime.Elapsed >= nextGraphPin)
{
// maintain graph pins...
//Debug.WriteLine( "spanTime.ElapsedMilliseconds [{0}] freeTime.ElapsedMilliseconds [{1}]", spanTime.ElapsedMilliseconds, freeTime.ElapsedMilliseconds );
//Debug.WriteLine( "currentTime {0}, progTime.Elapsed {1}", currentTime, progTime.Elapsed );
double markPeriod = (progTime.Elapsed - lastGraphPin).TotalMilliseconds;
double ratioUsed = 1.0 - ((double)freeTime.ElapsedMilliseconds / markPeriod);
lock ( mWorkerFrameHistogram ) {
mWorkerFrameHistogram.PushSample(Math.Max(0, ratioUsed));
}
lastGraphPin = progTime.Elapsed;
nextGraphPin = lastGraphPin + GraphPinInterval;
freeTime.Reset();
HistogramChanged?.Invoke(this, new EngineHistorgramUpdatedEventArgs(mWorkerFrameHistogram.GenerateBitmap()));
}
// ### spin until frame target
freeTime.Start();
while (currentTime - progTime.Elapsed > LongSleepThreshold)
{
Thread.Sleep(1);
}
while (currentTime > progTime.Elapsed)
{
Thread.Sleep(0);
}
freeTime.Stop();
// ### send all assembled frame data
Network.Send(netframe);
}
// ### set next frame target
currentTime += FrameTimeInterval;
if (currentTime < progTime.Elapsed)
{
// @todo: can't keep up! need to log a warning?
// match speed to max...
currentTime = progTime.Elapsed;
}
}
}
protected void OnHistogramUpdated()
{
HistogramChanged?.Invoke(this, EventArgs.Empty);
}
