1 # Copyright 2019 gRPC authors.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
16 cdef bint _grpc_aio_initialized = 0
20 global _grpc_aio_initialized
22 if _grpc_aio_initialized:
25 install_asyncio_iomgr()
28 # Timers are triggered by the Asyncio loop. We disable
29 # the background thread that is being used by the native
31 grpc_timer_manager_set_threading(False)
33 # gRPC callbaks are executed within the same thread used by the Asyncio
34 # event loop, as it is being done by the other Asyncio callbacks.
35 Executor.SetThreadingAll(False)
37 _grpc_aio_initialized = 1