Hey Jens, I ran across this:
Monitoring a Process with a dispatch source <https://developer.apple.com/library/ios/documentation/General/Conceptual/ConcurrencyProgrammingGuide/GCDWorkQueues/GCDWorkQueues.html#//apple_ref/doc/uid/TP40008091-CH103-SW5> "A process dispatch source lets you monitor the behavior of a specific process and respond appropriately. A parent process might use this type of dispatch source to monitor any child processes it creates. For example, the parent process could use it to watch for the death of a child process. Similarly, a child process could use it to monitor its parent process and exit if the parent process exits." Good luck! Doug Hill http://chartcube.com/ <http://chartcube.com/> > On Aug 31, 2015, at 4:32 PM, Jens Alfke <[email protected]> wrote: > > (I know this has come up here before, but I can’t get the right combination > of search terms to find an answer…) > > I’m writing a little GUI wrapper app around a command-line-based server. It > uses NSTask to launch the server. I want to ensure that when the app exits, > the server process exits too. I can tell the NSTask to terminate in my app > delegate's -applicationWillTerminate: method, but that doesn’t handle cases > where the app crashes or is force-quit. > > IIRC there is a way to tell the kernel to terminate the child process when > its parent process exits. But what is it, exactly? > > —Jens > > PS: As far as I know this is unrelated to the SIGHUP mechanism by which > shells kill their child processes when they exit; that relies on having a TTY > attached to the subprocess. _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
