IoContext.h

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef TRINITYCORE_IO_CONTEXT_H
#define TRINITYCORE_IO_CONTEXT_H
 
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/post.hpp>
 
namespace Trinity
{
    namespace Asio
    {
        class IoContextExecutor : public boost::asio::io_context::executor_type
        {
        public:
            using Base = boost::asio::io_context::executor_type;
 
            using Base::Base;
 
            IoContextExecutor(boost::asio::io_context::executor_type const& other) noexcept : Base(other) { }
 
            IoContextExecutor(boost::asio::io_context::executor_type&& other) noexcept : Base(std::move(other)) { }
 
            IoContextExecutor& operator=(basic_executor_type const& other) noexcept
            {
                Base::operator=(other);
                return *this;
            }
 
            IoContextExecutor& operator=(basic_executor_type&& other) noexcept
            {
                Base::operator=(std::move(other));
                return *this;
            }
        };
 
        class IoContext
        {
        public:
            using executor_type = IoContextExecutor;
 
            IoContext() : _impl() { }
            explicit IoContext(int concurrency_hint) : _impl(concurrency_hint) { }
 
            operator boost::asio::io_context&() { return _impl; }
            operator boost::asio::io_context const&() const { return _impl; }
 
            std::size_t run() { return _impl.run(); }
            std::size_t poll() { return _impl.poll(); }
            void stop() { _impl.stop(); }
 
            bool stopped() const { return _impl.stopped(); }
            void restart() { return _impl.restart(); }
 
            executor_type get_executor() noexcept { return _impl.get_executor(); }
 
        private:
            boost::asio::io_context _impl;
        };
 
        template<typename T>
        inline decltype(auto) post(IoContext& ioContext, T&& t)
        {
            return boost::asio::post(ioContext, std::forward<T>(t));
        }
 
        using boost::asio::bind_executor;
 
        template<typename T>
        inline decltype(auto) post(IoContextExecutor const& executor, T&& t)
        {
            return boost::asio::post(executor.context(), boost::asio::bind_executor(executor, std::forward<T>(t)));
        }
 
        template<typename T>
        inline decltype(auto) get_io_context(T&& ioObject)
        {
            return std::forward<T>(ioObject).get_executor().context();
        }
    }
}
 
#endif // TRINITYCORE_IO_CONTEXT_H