On Dec 13, 2021, at 21:11, Richard L. Hamilton wrote: > macOS does not have the "pwait" command that Linux and some other Unix > versions have, which allows waiting on any process (not just a child), given > the PID. There would definitely be uses for that, like dealing with a process > that backgrounds itself when you wish it didn't, provided you have some way > (if it writes a PID file, or if there would only be one instance, using > pgrep) to get the PID of the backgrounded process. > > Turns out FreeBSD has an implementation that uses the kqueue mechanism, which > macOS has. > > https://github.com/freebsd/freebsd-src/tree/master/bin/pwait > > The Makefile there is useless unless building as part of FreeBSD, but one can > just > > cc pwait.c -o pwait > > and it will compile and work just fine. There's also a man page in the > previously mentioned location. > > Wishing for a port...bit ugly when you can't use the supplied Makefile. > Sadly, not volunteering myself. :-/
Added! Thanks for the suggestion. https://ports.macports.org/port/pwait
