Files
StarPilot/system/loggerd/xattr_cache.py
T
Vehicle Researcher cfd8323ccb openpilot v0.9.2 release
date: 2023-05-18T22:02:42
master commit: c7d3b28b93faa6c955fb24bc64031512ee985ee9
2023-05-23 22:20:03 -07:00

24 lines
696 B
Python

import os
import errno
from typing import Dict, Tuple, Optional
_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 = os.getxattr(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 os.setxattr(path, attr_name, attr_value)