79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
//
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// system_context.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_SYSTEM_CONTEXT_HPP
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#define 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 "asio/detail/config.hpp"
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#include "asio/detail/scheduler.hpp"
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#include "asio/detail/thread_group.hpp"
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#include "asio/execution_context.hpp"
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#include "asio/detail/push_options.hpp"
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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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ASIO_DECL ~system_context();
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/// Obtain an executor for the context.
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executor_type get_executor() ASIO_NOEXCEPT;
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/// Signal all threads in the system thread pool to stop.
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ASIO_DECL void stop();
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/// Determine whether the system thread pool has been stopped.
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ASIO_DECL bool stopped() const ASIO_NOEXCEPT;
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/// Join all threads in the system thread pool.
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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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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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// 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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#include "asio/detail/pop_options.hpp"
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#include "asio/impl/system_context.hpp"
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#if defined(ASIO_HEADER_ONLY)
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# include "asio/impl/system_context.ipp"
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#endif // defined(ASIO_HEADER_ONLY)
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#endif // ASIO_SYSTEM_CONTEXT_HPP
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