Comments (4)
thank you
from clearscript.
Hi @Rison-Hub,
The only way to achieve that is to have the host and script implement a play/pause/exit protocol of some sort.
For example, the host could expose a property that the script periodically checks to determine whether to continue, await a continuation signal, or exit.
Good luck!
from clearscript.
Can you provide me with a simple demo for reference?
from clearscript.
Hi @Rison-Hub,
Can you provide me with a simple demo for reference?
Sure. Here's a class that provides basic pause/resume/terminate support:
public class ScriptControl {
private readonly ManualResetEventSlim _notPaused = new(true);
private bool _terminationRequested;
public void Pause() => _notPaused.Reset();
public void Resume() => _notPaused.Set();
public void Terminate() => _terminationRequested = true;
public bool CanContinue() {
if (_terminationRequested) return false;
_notPaused.Wait();
return true;
}
}
To use it, let's kick off a script execution thread:
var scriptControl = new ScriptControl();
var scriptThread = new Thread(() => {
using var engine = new V8ScriptEngine();
engine.AddHostType(typeof(Console));
engine.Script.canContinue = new Func<bool>(scriptControl.CanContinue);
engine.Script.sleep = new Action<int>(Thread.Sleep);
engine.Execute(@"
while (true) {
if (!canContinue()) break;
Console.WriteLine('Script running...');
sleep(500);
}
");
});
scriptThread.Start();
We can now control script execution as follows:
Thread.Sleep(2000);
scriptControl.Pause();
Console.WriteLine("Script paused for 5 seconds.");
Thread.Sleep(5000);
scriptControl.Resume();
Thread.Sleep(2000);
scriptControl.Terminate();
scriptThread.Join();
Console.WriteLine("Script terminated.");
This is just a simple example, but hopefully it gives you an idea of what's possible.
Cheers!
from clearscript.
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