2 * Copyright 2016 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.
18 #include <folly/futures/Promise.h>
24 auto FiberManager::addTaskFuture(F&& func) -> folly::Future<
25 typename folly::Unit::Lift<typename std::result_of<F()>::type>::type> {
26 using T = typename std::result_of<F()>::type;
27 using FutureT = typename folly::Unit::Lift<T>::type;
29 folly::Promise<FutureT> p;
30 auto f = p.getFuture();
32 [func = std::forward<F>(func)]() mutable { return func(); },
33 [p = std::move(p)](folly::Try<T> && t) mutable {
34 p.setTry(std::move(t));
40 auto FiberManager::addTaskRemoteFuture(F&& func) -> folly::Future<
41 typename folly::Unit::Lift<typename std::result_of<F()>::type>::type> {
43 typename folly::Unit::Lift<typename std::result_of<F()>::type>::type>
45 auto f = p.getFuture();
47 [ p = std::move(p), func = std::forward<F>(func), this ]() mutable {
48 auto t = folly::makeTryWith(std::forward<F>(func));
49 runInMainContext([&]() { p.setTry(std::move(t)); });