Files
dragonpilot/system/loggerd/xattr_cache.py
dragonpilot a5cee30aa6 dragonpilot beta3
date: 2024-06-25T13:13:17
commit: 69a099242f
2024-06-25 13:13:19 +08:00

23 lines
649 B
Python

import os
import errno
_cached_attributes: dict[tuple, bytes | None] = {}
def getxattr(path: str, attr_name: str) -> bytes | None:
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)