On Wed, Mar 22, 2006, Bernhard Reiter wrote:
> Am Dienstag, 21. März 2006 17:48 schrieb Simon J Mudd:
> > Torsten Homeyer <[EMAIL PROTECTED]> writes:
> > > Ralf S. Engelschall wrote:
>
> > > > "ps -elf" is not portable enough. Better would be something
> > > > like a "kill -0 `cat master.pid`".
>
> > If you are going to test for the postfix process in the process list
> > please check it is the one you expect (the OpenPKG postfix master),
> > not just "any postfix master" process before you decide to kill it.
>
> According to my "kill" manpages, "kill -0" will only check if the process
> exists, not try to actually send a signal to it.
Yes, of course. But that's what you want, right? You want to make sure
that the process exists. Sure, there is still the possibility that a
_NEW AND DIFFERENT_ process exists. But this one cannot solve easily.
If one would like to make sure that it really _IS_ the original Postfix
process one would have to speak some protocol to it or require
non-portable "ps" or "lsof" constructs.
Ralf S. Engelschall
[EMAIL PROTECTED]
www.engelschall.com
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