public async Task <bool> LaunchProcessAsync(TestProcessStartInfo runtimeProcessStartInfo, CancellationToken cancellationToken)
{
return(await Task.Run(() =>
{
try
{
EqtTrace.Verbose("RuntimeManager: Starting process '{0}' with command line '{1}'", runtimeProcessStartInfo.FileName, runtimeProcessStartInfo.Arguments);
cancellationToken.ThrowIfCancellationRequested();
var callbacks = new ProcessCallbacks
{
outputReceived = this.ProcessOutputReceived,
errorReceived = this.ProcessErrorReceived,
exitReceived = this.ProcessExitReceived
};
this.jsProcess.LaunchProcess(runtimeProcessStartInfo, callbacks);
}
catch (OperationCanceledException ex)
{
EqtTrace.Error("RuntimeManager: Failed to launch node: {0}", ex);
Console.WriteLine(ex);
return false;
}
this.InitializeCommunication(cancellationToken);
return this.jsProcess.IsAlive;
}));
}
public bool LaunchProcess(TestProcessStartInfo startInfo, ProcessCallbacks processStreamCallbacks)
{
var endpoint = this.InitializeChannel();
var process = new Process();
try
{
this.InitializeStartInfo(process, startInfo, endpoint);
process.EnableRaisingEvents = true;
process.OutputDataReceived += (sender, args) => processStreamCallbacks.outputReceived(sender as Process, args.Data);
process.ErrorDataReceived += (sender, args) => processStreamCallbacks.errorReceived(sender as Process, args.Data);
process.Exited += (sender, args) =>
{
// Call WaitForExit without again to ensure all streams are flushed,
var exitingProcess = sender as Process;
try
{
// Add timeout to avoid indefinite waiting on child process exit.
if (exitingProcess.WaitForExit(500))
{
Console.WriteLine("JSTest: Process with id {0} exited successfully.", jsProcessId);
}
else
{
Console.Error.WriteLine("JSTest: WaitForExit timed out for process {0}.{1}", jsProcessId);
}
}
catch (InvalidOperationException)
{
Console.WriteLine("JSTest: Process with id {0} exited successfully.{1}", jsProcessId);
}
// If exit callback has code that access Process object, ensure that the exceptions handling should be done properly.
processStreamCallbacks.exitReceived(exitingProcess);
};
EqtTrace.Verbose("JSProcess: Starting process '{0}' with command line '{1}'", startInfo.FileName, startInfo.Arguments);
process.Start();
process.BeginErrorReadLine();
process.BeginOutputReadLine();
this.jsProcessId = process.Id;
}
catch (Exception exception)
{
process.Dispose();
process = null;
EqtTrace.Error("JSProcess: Test runner {0} failed to launch with the following exception: {1}", startInfo.FileName, exception.Message);
throw;
}
this.process = process;
this.channel.WaitForClientConnection(GetConnectionTimeout());
return(process != null);
}