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/futures/Future.h> |
18 | #include <folly/Likely.h> |
19 | #include <folly/SingletonThreadLocal.h> |
20 | #include <folly/futures/ThreadWheelTimekeeper.h> |
21 | |
22 | namespace folly { |
23 | |
24 | // Instantiate the most common Future types to save compile time |
25 | template class SemiFuture<Unit>; |
26 | template class SemiFuture<bool>; |
27 | template class SemiFuture<int>; |
28 | template class SemiFuture<int64_t>; |
29 | template class SemiFuture<std::string>; |
30 | template class SemiFuture<double>; |
31 | template class Future<Unit>; |
32 | template class Future<bool>; |
33 | template class Future<int>; |
34 | template class Future<int64_t>; |
35 | template class Future<std::string>; |
36 | template class Future<double>; |
37 | } // namespace folly |
38 | |
39 | namespace folly { |
40 | namespace futures { |
41 | |
42 | Future<Unit> sleep(Duration dur, Timekeeper* tk) { |
43 | std::shared_ptr<Timekeeper> tks; |
44 | if (LIKELY(!tk)) { |
45 | tks = folly::detail::getTimekeeperSingleton(); |
46 | tk = tks.get(); |
47 | } |
48 | |
49 | if (UNLIKELY(!tk)) { |
50 | return makeFuture<Unit>(FutureNoTimekeeper()); |
51 | } |
52 | |
53 | return tk->after(dur); |
54 | } |
55 | |
56 | } // namespace futures |
57 | } // namespace folly |
58 |