http://www.perlmonks.org?node_id=857582


in reply to Re^2: open (to read) and kill a pipe to a pipe
in thread open (to read) and kill a pipe to a pipe

That's interesting since Windows doesn't have process groups. I wonder what it actually does ( when asked to kill a process group ).
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Re^4: open (to read) and kill a pipe to a pipe
by BrowserUk (Patriarch) on Aug 27, 2010 at 18:27 UTC

    See kill_process_tree_toolhelp() in win32.c

Re^4: open (to read) and kill a pipe to a pipe
by rowdog (Curate) on Aug 27, 2010 at 15:34 UTC

    Corion recently told me that "under the Windows fork emulation, emulated forked children get negative PIDs". I don't know where this is documented but I believe him.

      That's true, but I don't see how it's relevant. He's passing a negative signal.

        My mistake, I thought you were asking about the other "it".