I have a script that runs periodically by a launchd timer. I give the script a very tight timeout ( set_time_limit(120); ).
Most of the time, my script works great. But every once in a while, one of the commands I run in an exec( ) call seems to hang. This of course is a problem because once the exec( ) call hangs, the php script hangs as time spent on exec( ) calls does not count towards the script's runtime.
Furthermore since the script is still running, launchd doesn't call it again. So in this way, my script is entirely at the mercy of a command line program not having a problem. A
