mirror of https://github.com/opencardev/aasdk
362 lines
9.2 KiB
C++
362 lines
9.2 KiB
C++
/*
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* This file is part of aasdk library project.
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* Copyright (C) 2018 f1x.studio (Michal Szwaj)
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*
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* aasdk is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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* aasdk 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with aasdk. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <functional>
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#include <boost/asio.hpp>
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#include <boost/core/noncopyable.hpp>
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#include <f1x/aasdk/Error/Error.hpp>
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#include <f1x/aasdk/IO/IOContextWrapper.hpp>
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namespace f1x
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{
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namespace aasdk
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{
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namespace io
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{
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template<typename ResolveArgumentType, typename ErrorArgumentType = error::Error>
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class Promise: boost::noncopyable
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{
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public:
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typedef ResolveArgumentType ValueType;
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typedef ErrorArgumentType ErrorType;
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typedef std::function<void(ResolveArgumentType)> ResolveHandler;
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typedef std::function<void(ErrorArgumentType)> RejectHandler;
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typedef std::shared_ptr<Promise> Pointer;
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static Pointer defer(boost::asio::io_service& ioService)
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{
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return std::make_shared<Promise>(ioService);
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}
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static Pointer defer(boost::asio::io_service::strand& strand)
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{
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return std::make_shared<Promise>(strand);
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}
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Promise(boost::asio::io_service& ioService)
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: ioContextWrapper_(ioService)
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{
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}
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Promise(boost::asio::io_service::strand& strand)
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: ioContextWrapper_(strand)
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{
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}
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void then(ResolveHandler resolveHandler, RejectHandler rejectHandler = RejectHandler())
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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resolveHandler_ = std::move(resolveHandler);
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rejectHandler_ = std::move(rejectHandler);
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}
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void resolve(ResolveArgumentType argument)
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(resolveHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([argument = std::move(argument), resolveHandler = std::move(resolveHandler_)]() mutable {
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resolveHandler(std::move(argument));
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});
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}
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ioContextWrapper_.reset();
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rejectHandler_ = RejectHandler();
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}
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void reject(ErrorArgumentType error)
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(rejectHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([error = std::move(error), rejectHandler = std::move(rejectHandler_)]() mutable {
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rejectHandler(std::move(error));
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});
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}
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ioContextWrapper_.reset();
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resolveHandler_ = ResolveHandler();
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}
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private:
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bool isPending() const
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{
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return ioContextWrapper_.isActive();
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}
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ResolveHandler resolveHandler_;
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RejectHandler rejectHandler_;
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IOContextWrapper ioContextWrapper_;
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std::mutex mutex_;
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};
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template<typename ErrorArgumentType>
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class Promise<void, ErrorArgumentType>: boost::noncopyable
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{
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public:
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typedef ErrorArgumentType ErrorType;
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typedef std::function<void()> ResolveHandler;
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typedef std::function<void(ErrorArgumentType)> RejectHandler;
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typedef std::shared_ptr<Promise> Pointer;
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static Pointer defer(boost::asio::io_service& ioService)
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{
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return std::make_shared<Promise>(ioService);
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}
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static Pointer defer(boost::asio::io_service::strand& strand)
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{
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return std::make_shared<Promise>(strand);
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}
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Promise(boost::asio::io_service& ioService)
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: ioContextWrapper_(ioService)
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{
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}
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Promise(boost::asio::io_service::strand& strand)
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: ioContextWrapper_(strand)
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{
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}
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void then(ResolveHandler resolveHandler, RejectHandler rejectHandler = RejectHandler())
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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resolveHandler_ = std::move(resolveHandler);
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rejectHandler_ = std::move(rejectHandler);
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}
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void resolve()
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(resolveHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([resolveHandler = std::move(resolveHandler_)]() mutable {
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resolveHandler();
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});
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}
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ioContextWrapper_.reset();
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rejectHandler_ = RejectHandler();
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}
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void reject(ErrorArgumentType error)
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(rejectHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([error = std::move(error), rejectHandler = std::move(rejectHandler_)]() mutable {
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rejectHandler(std::move(error));
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});
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}
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ioContextWrapper_.reset();
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resolveHandler_ = ResolveHandler();
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}
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private:
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bool isPending() const
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{
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return ioContextWrapper_.isActive();
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}
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ResolveHandler resolveHandler_;
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RejectHandler rejectHandler_;
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IOContextWrapper ioContextWrapper_;
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std::mutex mutex_;
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};
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template<>
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class Promise<void, void>: boost::noncopyable
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{
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public:
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typedef std::function<void()> ResolveHandler;
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typedef std::function<void()> RejectHandler;
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typedef std::shared_ptr<Promise> Pointer;
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static Pointer defer(boost::asio::io_service& ioService)
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{
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return std::make_shared<Promise>(ioService);
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}
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static Pointer defer(boost::asio::io_service::strand& strand)
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{
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return std::make_shared<Promise>(strand);
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}
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Promise(boost::asio::io_service& ioService)
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: ioContextWrapper_(ioService)
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{
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}
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Promise(boost::asio::io_service::strand& strand)
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: ioContextWrapper_(strand)
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{
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}
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void then(ResolveHandler resolveHandler, RejectHandler rejectHandler = RejectHandler())
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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resolveHandler_ = std::move(resolveHandler);
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rejectHandler_ = std::move(rejectHandler);
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}
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void resolve()
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(resolveHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([resolveHandler = std::move(resolveHandler_)]() mutable {
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resolveHandler();
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});
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}
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ioContextWrapper_.reset();
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rejectHandler_ = RejectHandler();
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}
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void reject()
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(rejectHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([rejectHandler = std::move(rejectHandler_)]() mutable {
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rejectHandler();
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});
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}
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ioContextWrapper_.reset();
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resolveHandler_ = ResolveHandler();
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}
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private:
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bool isPending() const
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{
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return ioContextWrapper_.isActive();
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}
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ResolveHandler resolveHandler_;
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RejectHandler rejectHandler_;
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IOContextWrapper ioContextWrapper_;
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std::mutex mutex_;
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};
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template<typename ResolveArgumentType>
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class Promise<ResolveArgumentType, void>: boost::noncopyable
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{
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public:
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typedef ResolveArgumentType ValueType;
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typedef std::function<void(ResolveArgumentType)> ResolveHandler;
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typedef std::function<void(void)> RejectHandler;
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typedef std::shared_ptr<Promise> Pointer;
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static Pointer defer(boost::asio::io_service& ioService)
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{
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return std::make_shared<Promise>(ioService);
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}
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static Pointer defer(boost::asio::io_service::strand& strand)
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{
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return std::make_shared<Promise>(strand);
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}
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Promise(boost::asio::io_service& ioService)
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: ioContextWrapper_(ioService)
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{
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}
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Promise(boost::asio::io_service::strand& strand)
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: ioContextWrapper_(strand)
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{
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}
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void then(ResolveHandler resolveHandler, RejectHandler rejectHandler = RejectHandler())
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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resolveHandler_ = std::move(resolveHandler);
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rejectHandler_ = std::move(rejectHandler);
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}
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void resolve(ResolveArgumentType argument)
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(resolveHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([argument = std::move(argument), resolveHandler = std::move(resolveHandler_)]() mutable {
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resolveHandler(std::move(argument));
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});
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}
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ioContextWrapper_.reset();
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rejectHandler_ = RejectHandler();
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}
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void reject()
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{
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if(rejectHandler_ != nullptr && this->isPending())
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{
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ioContextWrapper_.post([rejectHandler = std::move(rejectHandler_)]() mutable {
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rejectHandler();
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});
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}
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ioContextWrapper_.reset();
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resolveHandler_ = ResolveHandler();
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}
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private:
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bool isPending() const
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{
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return ioContextWrapper_.isActive();
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}
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ResolveHandler resolveHandler_;
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RejectHandler rejectHandler_;
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IOContextWrapper ioContextWrapper_;
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std::mutex mutex_;
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};
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}
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}
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}
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