2 # Copyright (c) 2021 Project CHIP Authors
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
19 from ctypes import c_void_p
20 from chip.logging.types import LogRedirectCallback_t
23 def _GetLoggingLibraryHandle() -> ctypes.CDLL:
24 """ Get the native library handle with logging method initialization.
26 Retreives the CHIP native library handle and attaches signatures to
30 handle = chip.native.GetLibraryHandle()
32 # Uses one of the type decorators as an indicator for everything being
34 if not handle.pychip_logging_set_callback.argtypes:
35 setter = chip.native.NativeLibraryHandleMethodArguments(handle)
37 setter.Set('pychip_logging_set_callback', c_void_p, [LogRedirectCallback_t])