In theory, the process is only terminated if do_raise() returns true; that only happens if there is no signal handler set for sighup.

If there is a signal handler set, it gets called by do_raise(), whence it has as long as it decides to take, and sig_terminate() is never called. There is no sense in adding a Sleep 950; (which is a little under a second not 9.5 seconds) anywhere.

In reality, I can't get a sighup signal handler to ever be invoked even on 5.18. I run vista, and I never see a dialog prompting me; nor is there any delay 10s or otherwise between killing the process and it disappearing; regardless of whether I've installed a signal handler for HUP.

I'm not really sure I understand your motivation for meditating on this; but I think you need to do a lot more reading and experimenting.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
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: The implementation of SIGHUP in Win32 Perl by BrowserUk
in thread The implementation of SIGHUP in Win32 Perl by klaten

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.