Change how VM processes are inspected to test if they are running but using kill -0 <pid>. Use kill -0 is portable between macOS and Linux and the BSD and GNU tools. quickemu also uses kill -0, which was introduced as part of the macOS porting work.
I've tested this on Linux to make sure there are no regressions; it needs validating on macOS.
Fixes #179
Type of change
[x] Bug fix (non-breaking change which fixes an issue)
Checklist:
[x] I have performed a self-review of my code
[x] I have tested my code in common scenarios and confirmed there are no regressions
[x] I have added comments to my code, particularly in hard-to-understand sections
Description
Change how VM processes are inspected to test if they are running but using
kill -0 <pid>. Usekill -0is portable between macOS and Linux and the BSD and GNU tools.quickemualso useskill -0, which was introduced as part of the macOS porting work.I've tested this on Linux to make sure there are no regressions; it needs validating on macOS.
Type of change
Checklist: