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ab60062117
This patch will add the qemuMonitorJSONGetMemoryStats() to execute a "guest-stats" on the balloonpath using "get-qom" replacing the former mechanism which looked through the "query-ballon" returned data for the fields. The "query-balloon" code only returns 'actual' memory. Rather than duplicating the existing code, have the JSON API use the GetBalloonInfo API. A check in the qemuMonitorGetMemoryStats() will be made to ensure the balloon driver path has been set. Since the underlying JSON code can return data not associated with the balloon driver, we don't fail on a failure to get the balloonpath. Of course since we've made the check, we can then set the ballooninit flag. Getting the path here is primarily due to the process reconnect path which doesn't attempt to set the collection period.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>