//
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// impl/system_executor.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_IMPL_SYSTEM_EXECUTOR_HPP
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#define ASIO_IMPL_SYSTEM_EXECUTOR_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/executor_op.hpp"
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#include "asio/detail/global.hpp"
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#include "asio/detail/recycling_allocator.hpp"
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#include "asio/detail/type_traits.hpp"
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#include "asio/system_context.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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inline system_context& system_executor::context() const ASIO_NOEXCEPT
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{
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return detail::global<system_context>();
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}
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template <typename Function, typename Allocator>
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void system_executor::dispatch(
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ASIO_MOVE_ARG(Function) f, const Allocator&) const
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{
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typename decay<Function>::type tmp(ASIO_MOVE_CAST(Function)(f));
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asio_handler_invoke_helpers::invoke(tmp, tmp);
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}
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template <typename Function, typename Allocator>
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void system_executor::post(
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ASIO_MOVE_ARG(Function) f, const Allocator& a) const
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{
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typedef typename decay<Function>::type function_type;
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system_context& ctx = detail::global<system_context>();
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// Allocate and construct an operation to wrap the function.
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typedef detail::executor_op<function_type, Allocator> op;
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typename op::ptr p = { detail::addressof(a), op::ptr::allocate(a), 0 };
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p.p = new (p.v) op(ASIO_MOVE_CAST(Function)(f), a);
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ASIO_HANDLER_CREATION((ctx, *p.p,
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"system_executor", &this->context(), 0, "post"));
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ctx.scheduler_.post_immediate_completion(p.p, false);
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p.v = p.p = 0;
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}
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template <typename Function, typename Allocator>
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void system_executor::defer(
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ASIO_MOVE_ARG(Function) f, const Allocator& a) const
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{
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typedef typename decay<Function>::type function_type;
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system_context& ctx = detail::global<system_context>();
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// Allocate and construct an operation to wrap the function.
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typedef detail::executor_op<function_type, Allocator> op;
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typename op::ptr p = { detail::addressof(a), op::ptr::allocate(a), 0 };
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p.p = new (p.v) op(ASIO_MOVE_CAST(Function)(f), a);
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ASIO_HANDLER_CREATION((ctx, *p.p,
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"system_executor", &this->context(), 0, "defer"));
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ctx.scheduler_.post_immediate_completion(p.p, true);
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p.v = p.p = 0;
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}
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_IMPL_SYSTEM_EXECUTOR_HPP
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