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Re^3: Signal Handling throws Core Dump

by former33t (Scribe)
on Apr 26, 2007 at 03:05 UTC ( #612134=note: print w/replies, xml ) Need Help??

in reply to Re^2: Signal Handling throws Core Dump
in thread Signal Handling throws Core Dump

I first want to clarify that there are WAY better ways to do this, but if you want to increment a global variable to detect a signal being caught this will do the trick. As Paul noted earlier you shouldn't be trying to do anything complicated in the signal handler itself.
our $sig; $sig = 1; $SIG{INT} = sub { $sig++; }; my $oldsig; while (1) { if ($sig != $oldsig) { $control->removeMonitorPID($monitor->{PID}); #Execute the code ori +ginally in the signal handler. $oldsig = $sig; } .... Run main loop, but make sure to poll the status of the global v +ariable .... }

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Re^4: Signal Handling throws Core Dump
by jrw (Monk) on Apr 26, 2007 at 16:52 UTC
    Can you mention some of the WAY better ways or point at some references for them?
Re^4: Signal Handling throws Core Dump
by dsb (Chaplain) on Apr 28, 2007 at 03:13 UTC
    I actually did take the "complicated" code out of the sig handler and put it into a couple of conditional blocks as you demonstrated. I did still get the core dumps. However, I can't remember if I left the handler as simple as incrementing the global $sig. I'll give that a go...

    This @ISA my( $cool ) %SIG

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