[libvirt] [PATCH v2] DBus: introduce virDBusIsServiceEnabled
Daniel P. Berrange
berrange at redhat.com
Wed Sep 11 14:36:43 UTC 2013
On Wed, Sep 11, 2013 at 01:50:27PM +0100, Daniel P. Berrange wrote:
> On Wed, Sep 11, 2013 at 11:15:02AM +0800, Gao feng wrote:
> > This patch introduces virDBusIsServiceEnabled, we can use
> > this method to get if the service is supported.
> >
> > In one case, if org.freedesktop.machine1 is unavailable on
> > host, we should skip creating machine through systemd.
> >
> > Signed-off-by: Gao feng <gaofeng at cn.fujitsu.com>
> > ---
> > src/util/virdbus.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++
> > src/util/virdbus.h | 1 +
> > src/util/virsystemd.c | 17 +++++--------
> > 3 files changed, 73 insertions(+), 11 deletions(-)
> >
> > diff --git a/src/util/virdbus.c b/src/util/virdbus.c
> > index 62c31be..ad3045a 100644
> > --- a/src/util/virdbus.c
> > +++ b/src/util/virdbus.c
> > @@ -1207,6 +1207,66 @@ int virDBusMessageRead(DBusMessage *msg,
> > return ret;
> > }
> >
> > +/**
> > + * virDBusIsServiceEnabled:
> > + * @name: service name
> > + *
> > + * Retruns 0 if service is available, -1 on fatal error, or -2 if service is not available
> > + */
> > +int virDBusIsServiceEnabled(const char *name)
> > +{
> > + DBusConnection *conn;
> > + DBusMessage *reply = NULL;
> > + DBusMessageIter iter, sub;
> > + int ret = -1;
> > +
> > + if (!virDBusHasSystemBus())
> > + return -2;
> > +
> > + conn = virDBusGetSystemBus();
> > +
> > + if (virDBusCallMethod(conn,
> > + &reply,
> > + "org.freedesktop.DBus",
> > + "/org/freedesktop/DBus",
> > + "org.freedesktop.DBus",
> > + "ListActivatableNames",
> > + DBUS_TYPE_INVALID) < 0) {
> > +
> > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> > + _("ListActivatableNames failed"));
>
> ACK, but no need for this, since virDBusCallMethod will already have
> reported the error.
>
> I'll remove this virReportError and push it, so no need to repost.
I suck for forgetting to run 'make check' before pushing. I've just applied
a fix for the test suite problems.
Daniel
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