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83 lines
2.2 KiB
83 lines
2.2 KiB
// |
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// system_context.hpp |
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// ~~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2019 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 BOOST_ASIO_SYSTEM_CONTEXT_HPP |
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#define BOOST_ASIO_SYSTEM_CONTEXT_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 <boost/asio/detail/config.hpp> |
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#include <boost/asio/detail/scheduler.hpp> |
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#include <boost/asio/detail/thread_group.hpp> |
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#include <boost/asio/execution_context.hpp> |
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#include <boost/asio/detail/push_options.hpp> |
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namespace boost { |
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namespace asio { |
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class system_executor; |
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/// The executor context for the system executor. |
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class system_context : public execution_context |
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{ |
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public: |
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/// The executor type associated with the context. |
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typedef system_executor executor_type; |
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/// Destructor shuts down all threads in the system thread pool. |
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BOOST_ASIO_DECL ~system_context(); |
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/// Obtain an executor for the context. |
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executor_type get_executor() BOOST_ASIO_NOEXCEPT; |
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/// Signal all threads in the system thread pool to stop. |
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BOOST_ASIO_DECL void stop(); |
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/// Determine whether the system thread pool has been stopped. |
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BOOST_ASIO_DECL bool stopped() const BOOST_ASIO_NOEXCEPT; |
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/// Join all threads in the system thread pool. |
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BOOST_ASIO_DECL void join(); |
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#if defined(GENERATING_DOCUMENTATION) |
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private: |
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#endif // defined(GENERATING_DOCUMENTATION) |
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// Constructor creates all threads in the system thread pool. |
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BOOST_ASIO_DECL system_context(); |
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private: |
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friend class system_executor; |
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struct thread_function; |
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// Helper function to create the underlying scheduler. |
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BOOST_ASIO_DECL detail::scheduler& add_scheduler(detail::scheduler* s); |
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// The underlying scheduler. |
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detail::scheduler& scheduler_; |
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// The threads in the system thread pool. |
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detail::thread_group threads_; |
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}; |
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} // namespace asio |
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} // namespace boost |
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#include <boost/asio/detail/pop_options.hpp> |
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#include <boost/asio/impl/system_context.hpp> |
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#if defined(BOOST_ASIO_HEADER_ONLY) |
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# include <boost/asio/impl/system_context.ipp> |
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#endif // defined(BOOST_ASIO_HEADER_ONLY) |
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#endif // BOOST_ASIO_SYSTEM_CONTEXT_HPP
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