in reply to Killing subprocess in windows

problem is I need to be able to kill the sub-process again when the logfile stopped being open for writing

what's the problem? that you need to kill a process initiated with system? or that you want to know "when the logfile stopped being open for writing"? or both?

-tail 10 -wait $logfile

surely one can implement this in Perl and avoid getting into that swamp made by M$ regurgitating a proper-OS manual, diagonally read, anchored on !dollars! (that's a '$' for me and you).

bw, bliako

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Re^2: Killing subprocess in windows
by LanX (Saint) on May 20, 2021 at 21:17 UTC
    > what's the problem?

    getting the PID for killing. The file is locked as long as it is open, hence I can check that it was closed.

    > surely one can implement

    I thought about it, but getting the PID is always helpful.

    And I didn't want to fiddle much with stat and seek to read the newest portion of the file plus the idiosyncrasies of Win OS when applying a Unix-born language.

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery

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      I will admit that I am confused. I just don't understand the basic problem that you have. Could you write a few sentences that describe that? BTW..ich kann deutsch.

      I am just looking for some words that will help me understand what the problem is.

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        there are log files showing the output from STDOUT and STDERR from some processes, not necessarily Perl processes.

        I need to display each "active" logfile in a dir in a dedicated window which updates automatically.

        This is done with tail -f FILE on Unix, get-content -wait does the analogue on Win

        start opens a new "terminal" in parallel for the output.

        I don't really know the PID of the process writing to the logfile.

        Everything works fine so far, I just need to close the output windows once the logfile is closed. There are hundreds of jobs writing logfiles, I only need to show the active ones.

        That's why I need the PID to be able to kill the process reading from a logfile.

        > BTW..ich kann deutsch.

        fascinating! :)

        Cheers Rolf
        (addicted to the Perl Programming Language :)
        Wikisyntax for the Monastery

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