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34e8f63a32
Currently, we use iohelper when saving/restoring a domain. However, if there's some kind of error (like I/O) it is not propagated to libvirt. Since it is not qemu who is doing the actual write() it will not get error. The iohelper does. Therefore we should check for iohelper errors as it makes libvirt more user friendly.
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>