in reply to Kill a process in perl windows and proceed only if it killed the process

Will KillProcess return true on success? what this exit code means will that tells me it was a success? How can I check with an exitcode or returnCode and make sure a process actually killed?

There is absolutely no reason to loop!

If you have the appropriate permissions to kill the process; the single call to KillProcess() will kill it. And if you do not; retrying won't help.

Calling the Wait() method will ensure that it has actually died before your program continues; but be aware that if -- for example -- the process had just initiated a synchronous read request -- say a blocking tcp read -- to device or server that was slow, broken or non-existent, then you might have to wait quite some time before the process actually goes away and the Wait() completes. (For example: many tcp timeouts default to 900 seconds; some default DB server timeouts are even longer!)

The bottom line is: for most purposes, simply getting a non-zero return code from KillProcess() is enough to allow you to proceed.

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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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The start of some sanity?
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Re^2: Kill a process in perl windows and proceed only if it killed the process
by Anonymous Monk on Jul 24, 2012 at 15:50 UTC
    I tried the killProcess call followed by wait() call that BrowserUK suggested, but when I tried Win32::Process::Wait it gives me this error message- 'Usage:Win32::Process::Wait(cP, timeout)'
    what is 'cP' argument means? 
    $^E=0;
Win32::Process::KillProcess($pid, 111) or warn $^E;
Win32::Process::Wait(INFINITE);

    [download]
    Thanks,
    Peter
[reply]
[d/l]
      what is 'cP' argument means?

      You are calling Win32::Process::Wait() as a subroutine; you should be calling it as a method.

      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.

      The start of some sanity?
[reply]
        sorry, I didn't understand.
        I get the processids of the applications running on a processing node and I just want to kill it and wait for that process to be killed. I am not creating the process using Win32::Process::Create().
[reply]

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