1 | /* |
2 | * Copyright 2014-present Facebook, Inc. |
3 | * |
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 |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
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. |
15 | */ |
16 | |
17 | #pragma once |
18 | |
19 | #include <queue> |
20 | |
21 | #include <folly/Executor.h> |
22 | #include <folly/ThreadLocal.h> |
23 | |
24 | namespace folly { |
25 | |
26 | /** |
27 | * Runs inline like InlineExecutor, but with a queue so that any tasks added |
28 | * to this executor by one of its own callbacks will be queued instead of |
29 | * executed inline (nested). This is usually better behavior than Inline. |
30 | */ |
31 | class QueuedImmediateExecutor : public Executor { |
32 | public: |
33 | static QueuedImmediateExecutor& instance(); |
34 | |
35 | void add(Func func) override; |
36 | |
37 | private: |
38 | folly::ThreadLocal<std::queue<Func>> q_; |
39 | }; |
40 | |
41 | } // namespace folly |
42 | |