[libvirt] [PATCH 3/5] Introduce functions for checking whether a pidfile is valid

Jiri Denemark jdenemar at redhat.com
Fri Aug 12 11:37:51 UTC 2011


On Wed, Aug 10, 2011 at 16:37:26 +0100, Daniel P. Berrange wrote:
> From: "Daniel P. Berrange" <berrange at redhat.com>
> 
> In some cases the caller of virPidFileRead might like extra checks
> to determine whether the pid just read is really the one they are
> expecting. This adds virPidFileReadIfValid which will check whether
> the pid is still alive with kill(0, -1), and (on linux only) will
> look at /proc/$PID/path
> 
> * libvirt_private.syms, util/virpidfile.c, util/virpidfile.h: Add
>   virPidFileReadIfValid and virPidFileReadPathIfValid
> * network/bridge_driver.c: Use new APIs to check PID validity

The commit message talks about *IfValid while the code implements *IfAlive. I
think we should be consistent :-)

ACK

Jirka




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