Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Ah, OK. So you want to be able to kill off the offending sub-process when the alarm fires? Then you either need to walk the process table, looking for a process whose parent is your script, or start the process in a way which allows you to get the pid and the output.

e.g. run the code under a piped open, something like this (untested):

my $cmd = "your command"; my $pid = open(my $fh, "$cmd|"); $SIG{ALRM} = sub { print "Alarm fired, killing pid $pid\n"; # Replace with windows-specific code to kill process kill 15, $pid; }; die "Can't run command [$cmd] : $!" unless $pid; # Or do some other processing with $fh push @result, $_ while (<$fh>); close $fh or die "Problem running [$cmd] : $?";
If your child process starts yet more children (and they don't exit when the parent is killed), you'll have to write more elaborate cleanup code.

Dig through the windows-related process modules on CPAN and you should find what you need for the cleanup.

In reply to Re^3: Backticks and SIGALRM by jbert
in thread Backticks and SIGALRM by nemo

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    zentara passes around a pot of YirgaJeffa coffee.

    How do I use this? | Other CB clients
    Other Users?
    Others lurking in the Monastery: (7)
    As of 2018-05-25 16:57 GMT
    Find Nodes?
      Voting Booth?