[Toolserver-l] protip: i/o and infinite loops in php

[Daniel Schwen]

> why not: because if the i/o fails, your script will run forever, using
> 100% cpu, doing nothing.
Mh, yeah, I had a similar problem with my scripts. No infinite loop,  but a 
blocking write to a fifo, as my fifo listener process was killed off. 
I wasted lots of memory with my stale php processes. Sorry about that!
I fixed it by adding checks for the fifo listener (using pid files) and 
aborting the php script if the write would be blocking.
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