| # Copyright 2023 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Helpers for handling the C library via ctypes.""" |
| |
| import ctypes |
| import ctypes.util |
| import functools |
| |
| |
| # TODO(python3.9): Change to functools.cache. |
| @functools.lru_cache(maxsize=None) |
| def GetLibc() -> ctypes.CDLL: |
| """Retrieve the C library via ctypes. |
| |
| With caching, since the ctypes lookup can be slow. |
| """ |
| return ctypes.CDLL(ctypes.util.find_library("c"), use_errno=True) |
