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							|  | //
// system_context.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 ASIO_SYSTEM_CONTEXT_HPP
#define ASIO_SYSTEM_CONTEXT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#include "asio/detail/scheduler.hpp"
#include "asio/detail/thread_group.hpp"
#include "asio/execution_context.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
class system_executor;
/// The executor context for the system executor.
class system_context : public execution_context
{
public:
  /// The executor type associated with the context.
  typedef system_executor executor_type;
  /// Destructor shuts down all threads in the system thread pool.
  ASIO_DECL ~system_context();
  /// Obtain an executor for the context.
  executor_type get_executor() ASIO_NOEXCEPT;
  /// Signal all threads in the system thread pool to stop.
  ASIO_DECL void stop();
  /// Determine whether the system thread pool has been stopped.
  ASIO_DECL bool stopped() const ASIO_NOEXCEPT;
  /// Join all threads in the system thread pool.
  ASIO_DECL void join();
#if defined(GENERATING_DOCUMENTATION)
private:
#endif // defined(GENERATING_DOCUMENTATION)
  // Constructor creates all threads in the system thread pool.
  ASIO_DECL system_context();
private:
  friend class system_executor;
  struct thread_function;
  // Helper function to create the underlying scheduler.
  ASIO_DECL detail::scheduler& add_scheduler(detail::scheduler* s);
  // The underlying scheduler.
  detail::scheduler& scheduler_;
  // The threads in the system thread pool.
  detail::thread_group threads_;
};
} // namespace asio
#include "asio/detail/pop_options.hpp"
#include "asio/impl/system_context.hpp"
#if defined(ASIO_HEADER_ONLY)
# include "asio/impl/system_context.ipp"
#endif // defined(ASIO_HEADER_ONLY)
#endif // ASIO_SYSTEM_CONTEXT_HPP
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