On Sep 4, 2009, at 7:34 PM, Greg Guerin wrote:
man 3 atexit
This is really difficult to use for anything serious since it's called asynchronously, so you have no idea what state the main thread might be in at the time. It's like running on a separate thread, only worse because you can't wait for the main thread to continue (because you're on the main thread, you just can't return back to it.)
What I've done in the past is install a signal handler which tells the OS to ignore the signal, but also schedules a future callback on the main thread (via the runloop) that will then cleanly shut down the process. You probably want to catch the signals generated by Ctrl-C or a 'kill' command; IIRC that would be SIGINT, but my memory is hazy.
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