def __init__(self, filehandle):
self._objid = ObCacheId(filehandle)
if self._objid.bucketNameVersionIsV1():
self.prefix = "%08X_%s." % (fnv1_hash(self._objid.bytes), str(self._objid).upper())
self._name_version = 1
else:
self.prefix = "%016X_%s." % (hash64(self._objid), str(self._objid).upper())
self._name_version = 2
self.best_name = None
self.best_version = None
def unparse_indirect(run_options, tObj, blockList, treeIndex, depth):
ba = bytearray()
btypeList = get_unparse_handle_list(tObj.ftype, Btype.BTYPE_INDIRECT)
indirBlockId = ObCacheId()
offset = 0xFFFFFFFF & ((treeIndex << 16) + depth)
ba = unparse_obj_handles(run_options,
tObj,
ba,
indirBlockId,
objBtypeList=btypeList,
ownerFh=tObj.filehandle,
dataOffset=offset,
indirectBlockList=blockList)
return indirBlockId, ba
def generate_bucket_name(objId,
ownerObjId,
objType,
version=OBJ_VERSION_INITIAL,
nameprefix=None):
'''
Generate bucketnames given oid and owner obj id.
Special objects that are outside the filesystem tree have V1 names.
All other objects have V2 names
'''
if isinstance(objId, Filehandle):
objId = ObCacheId(objId)
if objId.bucketNameVersionIsV1():
nameVersion = 1
else:
nameVersion = 2
if objId.isRootId():
ownerObjId = objId
objType = Btype.BTYPE_DIR
if nameVersion == 1:
prefix = fnv1_hash(objId.bytes)
else:
prefix = hash64(objId)
parentHash = hash64(ownerObjId)
snapshotid = 0xFFFFFFFF
if nameVersion == 1:
name = "%08X_%s.%011u.%08X.%04u" % (prefix, str(objId).upper(),
version, snapshotid, nameVersion)
else:
name = "%016X_%s.%04u.%016X.%011u.%08X.%04u" % (prefix, objId.__str__(
).upper(), objType, parentHash, version, snapshotid, nameVersion)
if not nameprefix:
return name
return nameprefix + name
def unparse_segment(run_options, tobj, ftype, ownerfh, offset, data):
'pass owning object offset and data at offset'
segmentId = ObCacheId()
return segmentId, unparse_segment_using_obid(run_options, segmentId, tobj,
ftype, ownerfh, offset, data)