No, the parent just waits around doing nothing (except sleeping).

On your advice, I tried removing the SIGCHLD handler, but taking the contents into the wait loop in the parent, so it now does:

while ($children) { while ((my $pid = waitpid(-1, &WNOHANG)) > 0) { print "$?\n" if $?; delete $children{$pid}; $children--; print "$children children running\n"; } sleep; }

where it used to just sleep

However, this never terminated for me. My child processes become zombies and waitpid() never gives me anything back and I just loop forever. I also tried looping through the keys of the %children hash and waiting on each PID, but that didn't work any better for me. Am I misunderstanding something about your technique?


In reply to Re^2: $? is -1??? by kscaldef
in thread $? is -1??? by kscaldef

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