mirror of
https://github.com/PurpleI2P/Boost-for-Android-Prebuilt
synced 2025-01-08 22:08:01 +00:00
103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
//
|
|
// co_spawn.hpp
|
|
// ~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2019 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 BOOST_ASIO_CO_SPAWN_HPP
|
|
#define BOOST_ASIO_CO_SPAWN_HPP
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
# pragma once
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
|
|
|
#include <boost/asio/detail/config.hpp>
|
|
|
|
#if defined(BOOST_ASIO_HAS_CO_AWAIT) || defined(GENERATING_DOCUMENTATION)
|
|
|
|
#include <boost/asio/awaitable.hpp>
|
|
#include <boost/asio/execution_context.hpp>
|
|
#include <boost/asio/is_executor.hpp>
|
|
|
|
#include <boost/asio/detail/push_options.hpp>
|
|
|
|
namespace boost {
|
|
namespace asio {
|
|
namespace detail {
|
|
|
|
template <typename T>
|
|
struct awaitable_signature;
|
|
|
|
template <typename T, typename Executor>
|
|
struct awaitable_signature<awaitable<T, Executor>>
|
|
{
|
|
typedef void type(std::exception_ptr, T);
|
|
};
|
|
|
|
template <typename Executor>
|
|
struct awaitable_signature<awaitable<void, Executor>>
|
|
{
|
|
typedef void type(std::exception_ptr);
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
/// Spawn a new thread of execution.
|
|
/**
|
|
* The entry point function object @c f must have the signature:
|
|
*
|
|
* @code awaitable<void, E> f(); @endcode
|
|
*
|
|
* where @c E is convertible from @c Executor.
|
|
*/
|
|
template <typename Executor, typename F,
|
|
BOOST_ASIO_COMPLETION_TOKEN_FOR(typename detail::awaitable_signature<
|
|
typename result_of<F()>::type>::type) CompletionToken
|
|
BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(Executor)>
|
|
BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(CompletionToken,
|
|
typename detail::awaitable_signature<typename result_of<F()>::type>::type)
|
|
co_spawn(const Executor& ex, F&& f,
|
|
CompletionToken&& token
|
|
BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(Executor),
|
|
typename enable_if<
|
|
is_executor<Executor>::value
|
|
>::type* = 0);
|
|
|
|
/// Spawn a new thread of execution.
|
|
/**
|
|
* The entry point function object @c f must have the signature:
|
|
*
|
|
* @code awaitable<void, E> f(); @endcode
|
|
*
|
|
* where @c E is convertible from @c ExecutionContext::executor_type.
|
|
*/
|
|
template <typename ExecutionContext, typename F,
|
|
BOOST_ASIO_COMPLETION_TOKEN_FOR(typename detail::awaitable_signature<
|
|
typename result_of<F()>::type>::type) CompletionToken
|
|
BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(
|
|
typename ExecutionContext::executor_type)>
|
|
BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(CompletionToken,
|
|
typename detail::awaitable_signature<typename result_of<F()>::type>::type)
|
|
co_spawn(ExecutionContext& ctx, F&& f,
|
|
CompletionToken&& token
|
|
BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(
|
|
typename ExecutionContext::executor_type),
|
|
typename enable_if<
|
|
is_convertible<ExecutionContext&, execution_context&>::value
|
|
>::type* = 0);
|
|
|
|
} // namespace asio
|
|
} // namespace boost
|
|
|
|
#include <boost/asio/detail/pop_options.hpp>
|
|
|
|
#include <boost/asio/impl/co_spawn.hpp>
|
|
|
|
#endif // defined(BOOST_ASIO_HAS_CO_AWAIT) || defined(GENERATING_DOCUMENTATION)
|
|
|
|
#endif // BOOST_ASIO_CO_SPAWN_HPP
|