def _readRootoid(self):
''' Reads and return oid root from file '''
# unpickle
rootoidPath = os.path.join(self._storpath, OidFS.rootoid_filename)
fobj = open(rootoidPath, "r")
rootoid = cPickle.load(fobj)
fobj.close()
# If PDSCache in use then convert to coid
if rootoid is not oid.OID.Nulloid:
rootoid = pdscache.read_oid(rootoid)
return rootoid
def gc(self):
''' Garbage collects OidFS's internal Ptrie PStor. Saving only
self._rootoid. '''
# Run GC on OID's pstor first.
self._collect_pstor()
# Save oidfs's _rootoid
o = self._rootoid
if isinstance(self._rootoid, pdscache._CachedOid):
o = pdscache.write_coid(self._rootoid)
o, = self._oidPstor.keepOids([o])
o = pdscache.read_oid(o)
self._rootoid = o
self._writeRootoid()
