Function _fsync_directory

openkb/locks.py:183–193

(path: Path)

def _fsync_directory(path: Path) -> None:
    if os.name == "nt":
        # Windows cannot open a directory handle to fsync it. os.replace is
        # atomic on NTFS (no torn/partial state), though without the dir flush
        # the rename's durability across a crash is weaker than on POSIX.
        return
    fd = os.open(path, os.O_RDONLY)
    try:
        os.fsync(fd)
    finally:
        os.close(fd)


def _default_file_mode() -> int: