Re: [PATCH] opensm: Add support for PID file

[Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>]

On Tue, Jul 12, 2011 at 04:58:17PM -0700, Ira Weiny wrote:

> > The usual way to do this is to have the daemon drop a pidfile to the
> > location set by its --pidfile argument after it forks, but before the
> > command returns.
> 
> You mean like Alex's patch did?  I have not seen this done before.
> I checked out apache's httpd command and I don't see it doing this.

I didn't look closely..

At least sshd, ntpd, acpid, and dbus are working that way on my ubuntu
system.. Some commands write a default pidfile automaticaly rather
than doing nothing, but upstart and systemd eliminate the need
for a pid file at all, so I prefer to see a no write option.

> > If --pidfile is not given it should not drop a pidfile anyplace.
> 
> "it" is opensm in this case?

Yes

Jason
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