cgfs.py 文件源码

def truncate(self, path, length, fh=None):
        with self._lock:
            if length < 0:  # pragma: no cover
                raise FuseOSError(EINVAL)

            if fh is None:
                file = self.get_file(path, expect_type=SingleFile)
            else:  # pragma: no cover
                file = self._open_files[fh]

            if self.fixed and not isinstance(file, (TempFile, SpecialFile)):
                raise FuseOSError(EPERM)

            file.truncate(length)