Can't kill a non-numeric process ID at ./t.pl line 36.

Being as the script I linked to only has 35 lines, you must have changed something.

Given the reference to "kill", it would have to be one of these two lines producing the error:

kill 0, $pid while sleep 1 and $timeout--; kill 3, $pid and return if $timeout;

And given that $pid is set by this line:

$pid = open my $fh, "$cmd |" or die "$!, $^E";

it can only take a numeric value or undef. If it was undef, due to the command failing to run, then the die would have prevented the code reaching the kill lines.

So, what did you change and why?


Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Function for Timing out shell commands without getting Zombie Prozesses by BrowserUk
in thread Function for Timing out shell commands without getting Zombie Prozesses by bae11208

Title:
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, details, 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, summary, 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.