blah2/lib/asio-1.26.0/asio/experimental/detail/channel_message.hpp
2023-05-04 20:55:37 +09:30

122 lines
2.6 KiB
C++

//
// experimental/detail/channel_message.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef ASIO_EXPERIMENTAL_DETAIL_CHANNEL_MESSAGE_HPP
#define ASIO_EXPERIMENTAL_DETAIL_CHANNEL_MESSAGE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#include <tuple>
#include "asio/detail/type_traits.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace experimental {
namespace detail {
template <typename Signature>
class channel_message;
template <typename R>
class channel_message<R()>
{
public:
channel_message(int)
{
}
template <typename Handler>
void receive(Handler& handler)
{
ASIO_MOVE_OR_LVALUE(Handler)(handler)();
}
};
template <typename R, typename Arg0>
class channel_message<R(Arg0)>
{
public:
template <typename T0>
channel_message(int, ASIO_MOVE_ARG(T0) t0)
: arg0_(ASIO_MOVE_CAST(T0)(t0))
{
}
template <typename Handler>
void receive(Handler& handler)
{
ASIO_MOVE_OR_LVALUE(Handler)(handler)(
ASIO_MOVE_CAST(arg0_type)(arg0_));
}
private:
typedef typename decay<Arg0>::type arg0_type;
arg0_type arg0_;
};
template <typename R, typename Arg0, typename Arg1>
class channel_message<R(Arg0, Arg1)>
{
public:
template <typename T0, typename T1>
channel_message(int, ASIO_MOVE_ARG(T0) t0, ASIO_MOVE_ARG(T1) t1)
: arg0_(ASIO_MOVE_CAST(T0)(t0)),
arg1_(ASIO_MOVE_CAST(T1)(t1))
{
}
template <typename Handler>
void receive(Handler& handler)
{
ASIO_MOVE_OR_LVALUE(Handler)(handler)(
ASIO_MOVE_CAST(arg0_type)(arg0_),
ASIO_MOVE_CAST(arg1_type)(arg1_));
}
private:
typedef typename decay<Arg0>::type arg0_type;
arg0_type arg0_;
typedef typename decay<Arg1>::type arg1_type;
arg1_type arg1_;
};
template <typename R, typename... Args>
class channel_message<R(Args...)>
{
public:
template <typename... T>
channel_message(int, ASIO_MOVE_ARG(T)... t)
: args_(ASIO_MOVE_CAST(T)(t)...)
{
}
template <typename Handler>
void receive(Handler& h)
{
std::apply(ASIO_MOVE_OR_LVALUE(Handler)(h),
ASIO_MOVE_CAST(args_type)(args_));
}
private:
typedef std::tuple<typename decay<Args>::type...> args_type;
args_type args_;
};
} // namespace detail
} // namespace experimental
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // ASIO_EXPERIMENTAL_DETAIL_CHANNEL_MESSAGE_HPP