Files
dragonpilot/selfdrive/loggerd/xattr_cache.py
Dragonpilot Team 811fd5086f dragonpilot v2023.02.08 for EON/C2
version: dragonpilot v2023.02.08 release for EON/C2
date: 2023-02-08T05:01:31
dp-dev(priv2) beta2 commit: f770882b7f
2023-02-08 05:04:53 +00:00

26 lines
784 B
Python

# import os
import errno
from typing import Dict, Tuple, Optional
from common.xattr import getxattr as getattr1
from common.xattr import setxattr as setattr1
_cached_attributes: Dict[Tuple, Optional[bytes]] = {}
def getxattr(path: str, attr_name: str) -> Optional[bytes]:
key = (path, attr_name)
if key not in _cached_attributes:
try:
response = getattr1(path, attr_name)
except OSError as e:
# ENODATA means attribute hasn't been set
if e.errno == errno.ENODATA:
response = None
else:
raise
_cached_attributes[key] = response
return _cached_attributes[key]
def setxattr(path: str, attr_name: str, attr_value: bytes) -> None:
_cached_attributes.pop((path, attr_name), None)
return setattr1(path, attr_name, attr_value)