koobas.hobune.stream
Unity Editor freezes when starting several System.Diagnostics.Process one after another
I have got a method that starts an external process via System.Diagnostics.Process and returns its output as a string:
public static string ExecuteCommand(string command, string[] arguments)
{
var processInfo = new System.Diagnostics.ProcessStartInfo(command, string.Join(" ", arguments));
processInfo.CreateNoWindow = true;
processInfo.RedirectStandardOutput = true;
processInfo.UseShellExecute = false;
string output = "";
var process = System.Diagnostics.Process.Start(processInfo);
while (!process.StandardOutput.EndOfStream)
output += process.StandardOutput.ReadLine() + "\n";
process.WaitForExit();
process.Close();
Debug.Log(output);
return output;
}
Which works fine, the editor is frozen while the command is being executed which is expected using the process.WaitForExit() flag, however I noticed that when calling this function multiple times, the editor stays frozen until the last command has finished executing. So, if I have:
ExecuteCommand("adb", "install test.apk")
Debug.Log("A")
ExecuteCommand("adb", "uninstall com.app.test")
Debug.Log("B")
ExecuteCommand("adb", "push file.mp4")
Debug.Log("C")
A, B and C won't be printed until the last command (adb push) has finished execution. I can understand the ExecuteCommand method is blocking but shouldn't control being given back to the Unity Editor once it's finished and letting print the debug messages inbetween calls?
How could I fix this? Can't use coroutines because it's an EditorWindow script.
