I have [a] [...] script that [...] sleeps [...] If I add an ALRM signal handler, the ALRM stops working
One problem is in the man page sleep(3), at least on Linux:
Bugs
sleep() may be implemented using SIGALRM; mixing calls to alarm(2) and sleep() is a bad idea.
Using longjmp(3) from a signal handler or modifying the handling of SIGALRM while sleeping will cause undefined results.
program keeps running!!!! Any thoughts?
Multiple exclamation marks ...
Alexander
--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)
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