|Just another Perl shrine|
Re: Kill a process in perl windows and proceed only if it killed the processby BrowserUk (Pope)
|on Jul 19, 2012 at 22:53 UTC||Need Help??|
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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