[libvirt] [PATCH 4/6] Allow a timezone to be specified instead of sync to host timezone

[Daniel Veillard]

On Mon, Mar 01, 2010 at 06:45:28PM +0000, Daniel P. Berrange wrote:
> On Mon, Mar 01, 2010 at 03:14:48PM +0100, Daniel Veillard wrote:
> > On Thu, Feb 18, 2010 at 05:54:30PM +0000, Daniel P. Berrange wrote:
> > > This extends the XML to allow for
> > > 
> > >   <clock offset='timezone' timezone='Europe/Paris'/>
> > > 
> > > This is useful if the admin has not configured any timezone on the
> > > host OS, but still wants to synchronize a guest to a specific one.
> > > 
> > > * src/conf/domain_conf.h, src/conf/domain_conf.c: Support extra
> > >   'timezone' attribute on clock configuration
> > > * docs/schemas/domain.rng: Add 'timezone' attribute
> > > * src/xen/xend_internal.c, src/xen/xm_internal.c: Reject configs
> > >   with a configurable timezone
> > > ---
> > >  docs/schemas/domain.rng |   18 +++++++++++++++---
> > >  src/conf/domain_conf.c  |   24 ++++++++++++++++++++----
> > >  src/conf/domain_conf.h  |   13 ++++++++++---
> > >  src/qemu/qemu_conf.c    |    2 +-
> > >  src/xen/xend_internal.c |   10 ++++++++--
> > >  src/xen/xm_internal.c   |   17 ++++++++++++-----
> > >  6 files changed, 66 insertions(+), 18 deletions(-)
> > > 
> > > diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng
> > > index d295bfe..4a36a97 100644
> > > --- a/docs/schemas/domain.rng
> > > +++ b/docs/schemas/domain.rng
> > > @@ -298,9 +298,16 @@
> > >      <optional>
> > >        <element name="clock">
> > >  	<choice>
> > > -          <attribute name="offset">
> > > -            <value>localtime</value>
> > > -	  </attribute>
> > > +	  <group>
> > > +            <attribute name="offset">
> > > +              <value>localtime</value>
> > > +	    </attribute>
> > > +	    <optional>
> > > +	      <attribute name="timezone">
> > > +		<ref name="timeZone"/>
> > > +	      </attribute>
> > > +	    </optional>
> > > +	  </group>
> > >            <attribute name="offset">
> > >              <value>utc</value>
> > >  	  </attribute>
> > > @@ -1584,4 +1591,9 @@
> > >        <param name="pattern">(-|\+)?[0-9]+</param>
> > >      </data>
> > >    </define>
> > > +  <define name="timeZone">
> > > +    <data type="string">
> > > +      <param name="pattern">[a-zA-Z0-9_\.\+\-/]+</param>
> > 
> >   Hum ... I wonder if we should not add ':' as it's used for POSIX TZ
> 
> How is it used ?  I looked at /usr/share/zoneinfo and all the files
> there should be matched by this regex ok without needing ':'

  I looked there
    http://www.gnu.org/s/libc/manual/html_node/TZ-Variable.html
seems that the offset allows for : separator for minutes/seconds
I'm sure there is at least some places not aligned on hourly boundaries :)
But honnestly it's not a big deal !

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel at veillard.com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/