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 | #include <folly/executors/QueuedImmediateExecutor.h> |
18 | |
19 | #include <folly/Indestructible.h> |
20 | |
21 | namespace folly { |
22 | |
23 | QueuedImmediateExecutor& QueuedImmediateExecutor::instance() { |
24 | static auto instance = Indestructible<QueuedImmediateExecutor>{}; |
25 | return *instance; |
26 | } |
27 | |
28 | void QueuedImmediateExecutor::add(Func callback) { |
29 | auto& q = *q_; |
30 | q.push(std::move(callback)); |
31 | if (q.size() == 1) { |
32 | while (!q.empty()) { |
33 | q.front()(); |
34 | q.pop(); |
35 | } |
36 | } |
37 | } |
38 | |
39 | } // namespace folly |
40 |