Re: [Xen-devel] [PATCH] libxl: prevent xl from running if xend is running.

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Campbell writes ("Re: [Xen-devel] [PATCH] libxl: prevent xl from running if 
xend    is running."):
> You could consider this to be a best effort check for xend. IOW we try
> and look but if we can't tell then we assume it is not.

I guess.

> It's not terribly robust to just blunder on, but on the other hand being
> more robust has a bigger risk of false positives, e.g. failing to start
> xl because /var/lock/subsys/ does not exist isn't especially helpful
> either (the EACCESS return code doesn't distinguish that
> from /var/lock/subsys/xend not existing).

EACCES would happen only if the permissions prevented us from
looking.  If /var/lock/subsys doesn't exist we'll get ENOENT, the
"good" error return.

Ian.

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