Detecting SIGINT in Console process

Targets macOS
1

I have a xojo console tool which is being run as a child from within a Swift Process.

The Swift Process has two ways of terminating the child:
https://developer.apple.com/documentation/foundation/process

  • terminate - which sends SIGTERM
  • interrupt - which sends SIGINT

Is it possible to detect these from within the Xojo console app?

2

You can use SignalHandlerMBS class in MBS Xojo Util Plugin.

3

Yes!

See the solution in Feedback here:

<https://xojo.com/issue/2332>

1 Like
4

That works, thanks!

Of note, the signal handler function must be a global method; I tried to make it a method on the Application class, but that would crash in RuntimeUnlockObject.

5

How would one do that for TargetWindows?

Those example are for macOS/Linux…

And those examples don’t seem to be for Windows, too…

So while I can get this working for macOS/Linux, I’m still looking for a way to detect this (e.g. pressing “Ctrl + C”) on TargetWindows so that I can do some cleanup before the Xojo console/service app is being quit…

6

Does this help you Jurg?

[LINK REMOVED PER OP REQUEST]

2 Likes
7

It does :wink:
Thanks a lot for your example project for TargetWindows…!

How about adding this example to <https://xojo.com/issue/2332>?
Then there would be example for all Targets… both for Devs looking for a solution now, and for Xojo to implement this via their Framework.

1 Like