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Sleeping and reapingby Starky (Chaplain) |
on Jan 14, 2003 at 21:49 UTC ( [id://226968]=perlquestion: print w/replies, xml ) | Need Help?? |
Starky has asked for the wisdom of the Perl Monks concerning the following question:
I would like to have a parent process spawn a child to perform some task every 5 seconds. I would also like to perform some cleanup every time a child exits.
Unfortunately it appears that sleep exits prematurely when a CHLD signal handler is triggered; for example,
results in From the documentation for sleep, May be interrupted if the process receives a signal such as "SIGALRM". I can put the sleep in backticks, which seems to work albeit kludgily, but I am annoyed that putting it in backticks will result in a CHLD signal whenever the subprocess exits which means I have to worry about which child it was that exited when the child signal is caught. My question to the monks is: How would those wiser in the ways of slumber do this?
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