public void Dispose()
{
if (this.renderingProgressSniffer != null)
{
this.renderingProgressSniffer.ProgressChanged -= OnRenderProgressChanged;
this.renderingProgressSniffer.Dispose();
this.renderingProgressSniffer = null;
}
// dispose cpu perf counter
lock (this.cpuCounterLock)
{
if (this.cpuCounter != null)
{
this.cpuCounter.Close();
this.cpuCounter.Dispose();
this.cpuCounter = null;
}
}
// dispose ram perf counter
lock (this.ramCounterLock)
{
if (this.ramCounter != null)
{
this.ramCounter.Close();
this.ramCounter.Dispose();
this.ramCounter = null;
}
}
}
private void Start(bool isRestart)
{
this.maxDirectory = (string)this.settings["3dsmax_dir"];
this.maxExe = (string)this.settings["3dsmax_exe"];
this.unresponsiveTimeout = TimeSpan.FromSeconds((long)this.settings["unresponsive_timeout"]);
var controllerHostValue = (string)this.settings["controller_host"];
if (!IPAddress.TryParse(controllerHostValue, out this.controllerHost))
{
var hostEntry = Dns.GetHostEntry(controllerHostValue);
this.controllerHost = hostEntry.AddressList.FirstOrDefault();
if (this.controllerHost == null)
{
MessageBox.Show("Error", "Can't resolve DNS name: " + controllerHostValue, MessageBoxButtons.OK);
Application.Exit();
}
}
//prepare startup.ms file for this worker
var startupScriptFilename = Path.Combine(Path.GetTempPath(), $"worker_{this.Port}.ms");
File.WriteAllText(startupScriptFilename, $"threejsApiStart {this.Port} \"{this.controllerHost}\"");
//start worker process with parameters
//learn more about command line parameters here:
//https://knowledge.autodesk.com/support/3ds-max/learn-explore/caas/CloudHelp/cloudhelp/2019/ENU/3DSMax-Basics/files/GUID-1A97CFEC-60A3-4221-B9C3-5C808E2AED35-htm.html
var startInfo = new ProcessStartInfo(this.maxExe, $"-ma -dfc -silent -vxs -U MAXScript {startupScriptFilename}")
{
WorkingDirectory = this.maxDirectory,
WindowStyle = ProcessWindowStyle.Minimized
};
this.Process = new Process
{
StartInfo = startInfo,
EnableRaisingEvents = true
};
//update UI
if (this.Process != null)
{
this.Process.Exited += OnWorkerStopped;
this.Process.Start();
this.Process.PriorityClass = ProcessPriorityClass.Idle;
this.timerProcessCheck = new Timer(OnProcessCheckTimer, null, TimeSpan.FromMilliseconds(500), TimeSpan.FromSeconds(5));
this.renderingProgressSniffer = new VrayRenderProgressSniffer(this.Process);
this.renderingProgressSniffer.ProgressChanged += OnRenderProgressChanged;
if (isRestart)
{
this.restartCount++;
this.Restarted?.Invoke(this, EventArgs.Empty);
}
}
}
private void OnWorkerStopped(object sender, EventArgs eventArgs)
{
this.renderingProgressSniffer.ProgressChanged -= OnRenderProgressChanged;
this.renderingProgressSniffer?.Dispose();
this.renderingProgressSniffer = null;
this.timerProcessCheck?.Dispose();
this.timerProcessCheck = null;
var process = (Process)sender;
process.Exited -= OnWorkerStopped;
process.Dispose();
this.Restart();
}
public void Kill()
{
if (this.Process != null)
{
this.renderingProgressSniffer.ProgressChanged -= OnRenderProgressChanged;
this.renderingProgressSniffer?.Dispose();
this.renderingProgressSniffer = null;
this.timerProcessCheck?.Dispose();
this.timerProcessCheck = null;
this.Process.Exited -= OnWorkerStopped;
if (!this.Process.HasExited)
{
this.Process.Kill();
}
this.Process = null;
}
}
//todo: Process check is SRP violation, Worker is responsible for restart
private void OnProcessCheckTimer(object state)
{
try
{
if (this.Process == null || this.Process.HasExited)
{
return;
}
if (this.Process.Responding)
{
processUnresponsiveSince = null;
}
else
{
if (processUnresponsiveSince == null)
{
processUnresponsiveSince = DateTime.Now;
}
var unresponsiveTime = DateTime.Now.Subtract(this.processUnresponsiveSince.Value);
if (unresponsiveTime > this.unresponsiveTimeout)
{
//kill all processes that hang longer than unresponsiveTimeout
this.Process.Kill();
this.renderingProgressSniffer.ProgressChanged -= OnRenderProgressChanged;
this.renderingProgressSniffer.Dispose();
this.renderingProgressSniffer = null;
}
}
}
catch (Exception)
{
// whatever happens here, we don't care
}
}
