2 * Copyright 2017 Facebook, Inc.
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.
21 #include <folly/Executor.h>
22 #include <folly/executors/IOExecutor.h>
26 // Retrieve the global Executor. If there is none, a default InlineExecutor
27 // will be constructed and returned. This is named CPUExecutor to distinguish
28 // it from IOExecutor below and to hint that it's intended for CPU-bound tasks.
29 std::shared_ptr<folly::Executor> getCPUExecutor();
31 // Set an Executor to be the global Executor which will be returned by
32 // subsequent calls to getCPUExecutor().
33 void setCPUExecutor(std::weak_ptr<folly::Executor> executor);
35 // Retrieve the global IOExecutor. If there is none, a default
36 // IOThreadPoolExecutor will be constructed and returned.
38 // IOExecutors differ from Executors in that they drive and provide access to
39 // one or more EventBases.
40 std::shared_ptr<IOExecutor> getIOExecutor();
42 // Retrieve an event base from the global IOExecutor
43 folly::EventBase* getEventBase();
45 // Set an IOExecutor to be the global IOExecutor which will be returned by
46 // subsequent calls to getIOExecutor().
47 void setIOExecutor(std::weak_ptr<IOExecutor> executor);