def DecodeIntDesc(b):
if len(b) < 16 :
return None, None, error.BaseError("insufficient bytes to decode value")
u = int(b[-16:], 16) ^ uint64Mask
v = DecodeCmpUintToInt(u)
b = b[:-16]
return b, v, None
def DecodeIntDesc2(b):
if len(b) < 8 :
return None, None, error.BaseError("insufficient bytes to decode value")
u = struct.unpack(">Q", b[-8:])[0] ^ uint64Mask
v = DecodeCmpUintToInt(u)
b = b[:-8]
return b, v, None
def DecodeBytes(data):
'''
@type data: str
@rtype: str, str, error
@return: left_str, right_str, error
'''
info = data.rsplit(b'\0', 1)
if len(info) != 2:
return None, None, error.BaseError("DecodeBytes err. \0 not found.")
else:
return info[0], info[1], None
def DecodeUintDesc(b):
if len(b) < 16 :
return None, None, error.BaseError("insufficient bytes to decode value")
u = int(b[-16:], 16) ^ uint64Mask
b = b[:-16]
return b, u, None
def DecodeUint2(b):
if len(b) < 8 :
return None, None, error.BaseError("insufficient bytes to decode value")
u = struct.unpack(">Q", b[-8:])[0]
b = b[:-8]
return b, u, None