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Re: Stopping subprocesses

by rowdog (Curate)
on Aug 25, 2010 at 23:26 UTC ( #857342=note: print w/replies, xml ) Need Help??

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  1. or download this
    {
        local $SIG{HUP} = 'IGNORE';
        kill HUP => -$$;
    }
    
  2. or download this
    #!/opt/perl/bin/perl
    use 5.012;
    ...
    }
    
    say "A end";
    
  3. or download this
    #!/opt/perl/bin/perl
    use 5.012;
    ...
    sleep 30;
    
    say "  B end";
    
  4. or download this
    #!/opt/perl/bin/perl
    use 5.012;
    ...
    say "    C start";
    sleep 30;
    say "    C exit";
    
  5. or download this
    $ ./a.pl
    A start
    ...
    A waiting for lost children
    A reaped child 20683
    A end
    

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[Corion]: Also I found that I can't conveniently weaken an array slot, which also is inconvenient, as I want my one-shots to disappear if the caller discards them
[Corion]: choroba: Currently two or three that my program handles (WWW::Mechanize:: Chrome), but there might be more that become interesting
[Corion]: But I don't expect more than 100 to be active at the same time, so I'm not really sure if there is a not-too-fancy data structure that is maintained with few lines of code where the performance is better than the linear scan ;)
[Corion]: But I should do a mock-up program so that others can see what I'm talking about ;)
[robby_dobby]: Corion: I hope you know all too well that passing around "fancy" datastructures is a recipe for disaster :-)
[robby_dobby]: As in, it's-too-fancy- that-it-will-be- messy-to-handle
[choroba]: bit vectors as keys?
[robby_dobby]: Hmm, I keep falling asleep at my desk, while maintaining an active appearance. Am I getting old?
[robby_dobby]: Every time I fall asleep, there's a small guy in the dreams, shouting "Whoo!" and it jolts me awake. :/
[Lady_Aleena]: robby_dobby, at least you aren't driving. I seem to always be driving somewhere in my dreams and end up at a weird house.

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