[Feature] Option to terminate any subprocesses launched by the process

[dave256]

Is your feature request related to a problem? Please describe.
If the created process spawns subprocesses (such as running a shell script and the script spawns a Python program), it seems the teardown method doesn't kill the subprocesses. This is problematic if the spawned subprocess has entered an infinite loop/hang. I made a fork and tried changing the parameter of the toProcessGroup parameter in send(signal:toProcessGroup:) method to true but that still didn't seem to work.

Describe the solution you'd like
There should be an option to also kill any subprocesses spawned by the process.

Describe alternatives you've considered
I don't have any alternatives other than perhaps running it in a separate XPC process.

Additional context
None

[broken-circle]

I ran into the same issue and opened #243 to address it.

If merged, setting PlatformOptions.sendTeardownSignalsToProcessGroup to true will ensure this behavior during teardown.

One caveat: Unless you also set createSession to true, or processGroupID to a non-inherited value, the targeted process group includes the parent process. This is almost never what you want. Pairing it with createSession isolates the subprocess and its descendants in their own session.

[dave256]

@broken-circle thanks! I hope this works correctly and is merged. I gave up on subprocess for now but will look into it again if this is merged.

[iCharlesHu]

Fixed with #243