openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.

24 lines
739 B

import errno
import xattr
_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 = xattr.getxattr(path, attr_name)
except OSError as e:
# ENODATA (Linux) or ENOATTR (macOS) means attribute hasn't been set
if e.errno == errno.ENODATA or (hasattr(errno, 'ENOATTR') and e.errno == errno.ENOATTR):
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)
xattr.setxattr(path, attr_name, attr_value)