C# Process Exited event not firing from within webservice
- by davidpizon
I am attempting to wrap a 3rd party command line application within a web service.
If I run the following code from within a console application:
Process process= new System.Diagnostics.Process();
process.StartInfo.FileName = "some_executable.exe";
// Do not spawn a window for this process
process.StartInfo.CreateNoWindow = true;
process.StartInfo.ErrorDialog = false;
// Redirect input, output, and error streams
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardInput = true;
process.EnableRaisingEvents = true;
process.ErrorDataReceived += (sendingProcess, eventArgs) => {
// Make note of the error message
if (!String.IsNullOrEmpty(eventArgs.Data))
if (this.WarningMessageEvent != null)
this.WarningMessageEvent(this, new MessageEventArgs(eventArgs.Data));
};
process.OutputDataReceived += (sendingProcess, eventArgs) => {
// Make note of the message
if (!String.IsNullOrEmpty(eventArgs.Data))
if (this.DebugMessageEvent != null)
this.DebugMessageEvent(this, new MessageEventArgs(eventArgs.Data));
};
process.Exited += (object sender, EventArgs e) => {
// Make note of the exit event
if (this.DebugMessageEvent != null)
this.DebugMessageEvent(this, new MessageEventArgs("The command exited"));
};
process.Start();
process.StandardInput.Close();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
process.WaitForExit();
int exitCode = process.ExitCode;
process.Close();
process.Dispose();
if (this.DebugMessageEvent != null)
this.DebugMessageEvent(this, new MessageEventArgs("The command exited with code: " + exitCode));
All events, including the "process.Exited" event fires as expected. However, when this code is invoked from within a web service method, all events EXCEPT the "process.Exited" event fire.
The execution appears to hang at the line:
process.WaitForExit();
Would anyone be able to shed some light as to what I might be missing?
