question: why exit(0)when parent pid is 1?

[PoiScript]

Hello, I was trying to run my SketchyBarHelper as a launch agent. But i'm encountering a problem that the helper exits if its parent pid equal to 1 (which is launchd). I found out this behavior was introduced by this commit 73ee34d for handling kill signals, but I don't have any detail or context about this change. It's there any workaround to run the helper by launchd?

[FelixKratz]

The idea is that the helper should never become an orphan, i.e. its ppid should not be 1 if it was not already initially. This ensures that the helper exits once the parent process does. Maybe its better to do a startup check for the ppid and only branch into the exit branch if the ppid has changed to 1.

[PoiScript]

@FelixKratz thank you for the explanation! I just moved the helper command to the bottom of sketchybarrc instead, so the helper can be launched at startup eventually. But I'm unsure if keeping a long-running job within sketchybarrc is recommended.