mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-12 11:12:16 +00:00
9f008b129f
- added new fift/func code for validator complaint creation - bugfixes in validator - updates in tonlib - new versions of rocksdb/abseil - hardfork support
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2020 Telegram Systems LLP
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*/
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#pragma once
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#include "refcnt.hpp"
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#include "td/actor/PromiseFuture.h"
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namespace td {
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template <typename S, typename T>
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class BinaryPromiseMerger : public CntObject {
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Result<S> first_;
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Result<T> second_;
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Promise<std::pair<S, T>> promise_;
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std::atomic<int> pending_;
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public:
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BinaryPromiseMerger(Promise<std::pair<S, T>> promise) : promise_(std::move(promise)), pending_(2) {
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}
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static std::pair<Promise<S>, Promise<T>> split(Promise<std::pair<S, T>> promise) {
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auto ref = make_ref<BinaryPromiseMerger>(std::move(promise));
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auto& obj = ref.write();
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return std::make_pair(obj.left(), obj.right());
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}
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private:
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Promise<S> left() {
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return [this, self = Ref<BinaryPromiseMerger>(this)](Result<S> res) {
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first_ = std::move(res);
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work();
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};
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}
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Promise<T> right() {
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return [this, self = Ref<BinaryPromiseMerger>(this)](Result<T> res) {
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second_ = std::move(res);
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work();
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};
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}
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void work() {
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if (!--pending_) {
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if (first_.is_error()) {
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promise_.set_error(first_.move_as_error());
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} else if (second_.is_error()) {
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promise_.set_error(second_.move_as_error());
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} else {
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promise_.set_result(std::pair<S, T>(first_.move_as_ok(), second_.move_as_ok()));
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}
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}
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}
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};
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template <typename S, typename T>
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std::pair<Promise<S>, Promise<T>> split_promise(Promise<std::pair<S, T>> promise) {
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return BinaryPromiseMerger<S, T>::split(std::move(promise));
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}
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} // namespace td
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