public Task StartProcessAsync()
{
using (_metricsLogger.LatencyEvent(MetricEventNames.ProcessStart))
{
Process = CreateWorkerProcess();
try
{
Process.ErrorDataReceived += (sender, e) => OnErrorDataReceived(sender, e);
Process.OutputDataReceived += (sender, e) => OnOutputDataReceived(sender, e);
Process.Exited += (sender, e) => OnProcessExited(sender, e);
Process.EnableRaisingEvents = true;
_workerProcessLogger?.LogDebug($"Starting worker process with FileName:{Process.StartInfo.FileName} WorkingDirectory:{Process.StartInfo.WorkingDirectory} Arguments:{Process.StartInfo.Arguments}");
Process.Start();
_workerProcessLogger?.LogDebug($"{Process.StartInfo.FileName} process with Id={Process.Id} started");
Process.BeginErrorReadLine();
Process.BeginOutputReadLine();
// Register process only after it starts
_processRegistry?.Register(Process);
RegisterWithProcessMonitor();
return(Task.CompletedTask);
}
catch (Exception ex)
{
_workerProcessLogger.LogError(ex, $"Failed to start Worker Channel. Process fileName: {Process.StartInfo.FileName}");
return(Task.FromException(ex));
}
}
}
public Task StartWorkerProcessAsync()
{
_startSubscription = _inboundWorkerEvents.Where(msg => msg.MessageType == MsgType.StartStream)
.Timeout(TimeSpan.FromSeconds(LanguageWorkerConstants.ProcessStartTimeoutSeconds))
.Take(1)
.Subscribe(SendWorkerInitRequest, HandleWorkerError);
var workerContext = new WorkerContext()
{
RequestId = Guid.NewGuid().ToString(),
MaxMessageLength = LanguageWorkerConstants.DefaultMaxMessageLengthBytes,
WorkerId = _workerId,
Arguments = _workerConfig.Arguments,
WorkingDirectory = _rootScriptPath,
ServerUri = _serverUri,
};
_process = _processFactory.CreateWorkerProcess(workerContext);
StartProcess();
_processRegistry?.Register(_process);
_state = LanguageWorkerChannelState.Initializing;
return(Task.CompletedTask);
}
public Task StartProcessAsync()
{
try
{
_process.ErrorDataReceived += (sender, e) => OnErrorDataReceived(sender, e);
_process.OutputDataReceived += (sender, e) => OnOutputDataReceived(sender, e);
_process.Exited += (sender, e) => OnProcessExited(sender, e);
_process.EnableRaisingEvents = true;
_workerProcessLogger?.LogInformation($"Starting language worker process:{_process.StartInfo.FileName} {_process.StartInfo.Arguments}");
_process.Start();
_workerProcessLogger?.LogInformation($"{_process.StartInfo.FileName} process with Id={_process.Id} started");
_process.BeginErrorReadLine();
_process.BeginOutputReadLine();
// Register process only after it starts
_processRegistry?.Register(_process);
return(Task.CompletedTask);
}
catch (Exception ex)
{
_workerProcessLogger.LogError(ex, "Failed to start Language Worker Channel for language :{_runtime}", _runtime);
return(Task.FromException(ex));
}
}
public Process StartProcess()
{
try
{
_process.ErrorDataReceived += (sender, e) => OnErrorDataReceived(sender, e);
_process.OutputDataReceived += (sender, e) => OnOutputDataReceived(sender, e);
_process.Exited += (sender, e) => OnProcessExited(sender, e);
_process.EnableRaisingEvents = true;
_workerProcessLogger?.LogInformation($"Starting language worker process:{_process.StartInfo.FileName} {_process.StartInfo.Arguments}");
_process.Start();
_workerProcessLogger?.LogInformation($"{_process.StartInfo.FileName} process with Id={_process.Id} started");
_process.BeginErrorReadLine();
_process.BeginOutputReadLine();
// Register process only after it starts
_processRegistry?.Register(_process);
}
catch (Exception ex)
{
throw new HostInitializationException($"Failed to start Language Worker Channel for language :{_runtime}", ex);
}
return(_process);
}
// send capabilities to worker, wait for WorkerInitResponse
internal void InitWorker(RpcEvent startEvent)
{
_processRegistry?.Register(_process);
_inboundWorkerEvents.Where(msg => msg.MessageType == MsgType.WorkerInitResponse)
.Timeout(timeoutInit)
.Take(1)
.Subscribe(WorkerReady, HandleWorkerError);
Send(new StreamingMessage
{
WorkerInitRequest = new WorkerInitRequest()
{
HostVersion = ScriptHost.Version
}
});
}
// start worker process and wait for an rpc start stream response
internal void StartWorker()
{
_startSubscription = _inboundWorkerEvents.Where(msg => msg.MessageType == MsgType.StartStream)
.Timeout(processStartTimeout)
.Take(1)
.Subscribe(InitWorker, HandleWorkerError);
var workerContext = new WorkerCreateContext()
{
RequestId = Guid.NewGuid().ToString(),
MaxMessageLength = _scriptConfig.MaxMessageLengthBytes,
WorkerId = _workerId,
Arguments = _workerConfig.Arguments,
WorkingDirectory = _scriptConfig.RootScriptPath,
ServerUri = _serverUri,
};
_process = _processFactory.CreateWorkerProcess(workerContext);
StartProcess();
_processRegistry?.Register(_process);
}