| 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 <chrono> |
| 20 | |
| 21 | namespace folly { |
| 22 | |
| 23 | /// folly::Duration is an alias for the best resolution we offer/work with. |
| 24 | /// However, it is not intended to be used for client code - you should use a |
| 25 | /// descriptive std::chrono::duration type instead. e.g. do not write this: |
| 26 | /// |
| 27 | /// futures::sleep(Duration(1000))... |
| 28 | /// |
| 29 | /// rather this: |
| 30 | /// |
| 31 | /// futures::sleep(std::chrono::milliseconds(1000)); |
| 32 | /// |
| 33 | /// or this: |
| 34 | /// |
| 35 | /// futures::sleep(std::chrono::seconds(1)); |
| 36 | using Duration = std::chrono::milliseconds; |
| 37 | |
| 38 | } // namespace folly |
| 39 | |