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Re^2: Why is perl not honouring SIGSTOP?

by PerlOnTheWay (Scribe)
on Mar 10, 2012 at 05:24 UTC ( #958836=note: print w/ replies, xml ) Need Help??


in reply to Re: Why is perl not honouring SIGSTOP?
in thread Why is perl not honouring SIGSTOP?

Both SIGSTOP and SIGTSTP should STOP the process by default.


Comment on Re^2: Why is perl not honouring SIGSTOP?
Re^3: Why is perl not honouring SIGSTOP?
by Marshall (Prior) on Mar 10, 2012 at 05:44 UTC
    Well we are back in the circle again. Perl does not do a darn thing with these signals. Expand your test program: sleep, do something, sleep, do something, sleep, do something...
Re^3: Why is perl not honouring SIGSTOP?
by lidden (Deacon) on Mar 10, 2012 at 06:21 UTC
    I am using Ubuntu and perl can be stoped with SIGTSTP and then be resumed without problem.

    Tried with this prog: $ perl -E 'for (0..100) { say; sleep 1};'

Re^3: Why is perl not honouring SIGSTOP?
by lidden (Deacon) on Mar 10, 2012 at 08:34 UTC
    I was asked my Marshall in a message to try to sleep for longer times. It seems sleep sets a time when it should wake up again and while SIGTSTP does stop the process it does not stop the passing of time. (I am guessing about how sleep works.) If you want different behaviour you have to replace sleep() with something else.

    $ perl -E 'for (0..100) { say "$_: ". time %100;sleep 33;}'

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