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Future patches will want to learn metadata about a file using a buffer that was already parsed in order to probe the file's format. Rather than reopening and re-reading the file, it makes sense to separate getting file contents from actually parsing those contents. * src/util/virstoragefile.c (virStorageFileGetMetadataFromBuf) (virStorageFileGetMetadataFromFDInternal): New functions. (virStorageFileGetMetadataInternal): Hoist fstat() and read() into callers. (virStorageFileGetMetadataFromFD) (virStorageFileGetMetadataRecurse): Rework clients. * src/util/virstoragefile.h (virStorageFileGetMetadataFromBuf): New prototype. * src/libvirt_private.syms (virstoragefile.h): Export it. Signed-off-by: Eric Blake <eblake@redhat.com>
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>