71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <folly/functional/Invoke.h>
|
|
#include <folly/futures/Promise.h>
|
|
|
|
namespace folly {
|
|
namespace fibers {
|
|
|
|
template <typename F>
|
|
auto FiberManager::addTaskFuture(F&& func)
|
|
-> folly::Future<folly::lift_unit_t<invoke_result_t<F>>> {
|
|
using T = invoke_result_t<F>;
|
|
using FutureT = folly::lift_unit_t<T>;
|
|
|
|
folly::Promise<FutureT> p;
|
|
auto f = p.getFuture();
|
|
addTaskFinally(
|
|
[func = std::forward<F>(func)]() mutable { return func(); },
|
|
[p = std::move(p)](folly::Try<T>&& t) mutable {
|
|
p.setTry(std::move(t));
|
|
});
|
|
return f;
|
|
}
|
|
|
|
template <typename F>
|
|
auto FiberManager::addTaskEagerFuture(F&& func)
|
|
-> folly::Future<folly::lift_unit_t<invoke_result_t<F>>> {
|
|
using T = invoke_result_t<F>;
|
|
using FutureT = typename folly::lift_unit<T>::type;
|
|
|
|
folly::Promise<FutureT> p;
|
|
auto f = p.getFuture();
|
|
addTaskFinallyEager(
|
|
[func = std::forward<F>(func)]() mutable { return func(); },
|
|
[p = std::move(p)](folly::Try<T>&& t) mutable {
|
|
p.setTry(std::move(t));
|
|
});
|
|
return f;
|
|
}
|
|
|
|
template <typename F>
|
|
auto FiberManager::addTaskRemoteFuture(F&& func)
|
|
-> folly::Future<folly::lift_unit_t<invoke_result_t<F>>> {
|
|
folly::Promise<folly::lift_unit_t<invoke_result_t<F>>> p;
|
|
auto f = p.getFuture();
|
|
addTaskRemote(
|
|
[p = std::move(p), func = std::forward<F>(func), this]() mutable {
|
|
auto t = folly::makeTryWithNoUnwrap(std::forward<F>(func));
|
|
runInMainContext([&]() { p.setTry(std::move(t)); });
|
|
});
|
|
return f;
|
|
}
|
|
} // namespace fibers
|
|
} // namespace folly
|