Reduce the number of stat/fstat system calls made

This address BZ 868086, https://bugzilla.redhat.com/show_bug.cgi?id=868086

This refactoring consolidates the code a bit, and uses os.stat calls to get
all the information in one call when gathering the metadata for an object. The
five stat system calls (invoked via all the os.path.*() calls) have been
reduced to one.

We also added a unit test for the one new behavior where get_object_metadata()
will now throw an OSError exception if it has a problem stat'ing a file that
exists.

Change-Id: Iad5410c77938af68a47be757a3170abd201adeb0
BUG: 868086
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Reviewed-on: http://review.gluster.org/4112
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Mohammed Junaid <junaid@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>

0 files changed, 0 insertions, 0 deletions