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file: //
  // seq_packet_socket_service.hpp
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  //
  // Copyright (c) 2003-2016 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_SEQ_PACKET_SOCKET_SERVICE_HPP
  #define BOOST_ASIO_SEQ_PACKET_SOCKET_SERVICE_HPP
  
  #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  # pragma once
  #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  
  #include <boost/asio/detail/config.hpp>
  #include <cstddef>
  #include <boost/asio/async_result.hpp>
  #include <boost/asio/detail/type_traits.hpp>
  #include <boost/asio/error.hpp>
  #include <boost/asio/io_service.hpp>
  
  #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
  # include <boost/asio/detail/null_socket_service.hpp>
  #elif defined(BOOST_ASIO_HAS_IOCP)
  # include <boost/asio/detail/win_iocp_socket_service.hpp>
  #else
  # include <boost/asio/detail/reactive_socket_service.hpp>
  #endif
  
  #include <boost/asio/detail/push_options.hpp>
  
  namespace boost {
  namespace asio {
  
  /// Default service implementation for a sequenced packet socket.
  template <typename Protocol>
  class seq_packet_socket_service
  #if defined(GENERATING_DOCUMENTATION)
    : public boost::asio::io_service::service
  #else
    : public boost::asio::detail::service_base<
        seq_packet_socket_service<Protocol> >
  #endif
  {
  public:
  #if defined(GENERATING_DOCUMENTATION)
    /// The unique service identifier.
    static boost::asio::io_service::id id;
  #endif
  
    /// The protocol type.
    typedef Protocol protocol_type;
  
    /// The endpoint type.
    typedef typename Protocol::endpoint endpoint_type;
  
  private:
    // The type of the platform-specific implementation.
  #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
    typedef detail::null_socket_service<Protocol> service_impl_type;
  #elif defined(BOOST_ASIO_HAS_IOCP)
    typedef detail::win_iocp_socket_service<Protocol> service_impl_type;
  #else
    typedef detail::reactive_socket_service<Protocol> service_impl_type;
  #endif
  
  public:
    /// The type of a sequenced packet socket implementation.
  #if defined(GENERATING_DOCUMENTATION)
    typedef implementation_defined implementation_type;
  #else
    typedef typename service_impl_type::implementation_type implementation_type;
  #endif
  
    /// (Deprecated: Use native_handle_type.) The native socket type.
  #if defined(GENERATING_DOCUMENTATION)
    typedef implementation_defined native_type;
  #else
    typedef typename service_impl_type::native_handle_type native_type;
  #endif
  
    /// The native socket type.
  #if defined(GENERATING_DOCUMENTATION)
    typedef implementation_defined native_handle_type;
  #else
    typedef typename service_impl_type::native_handle_type native_handle_type;
  #endif
  
    /// Construct a new sequenced packet socket service for the specified
    /// io_service.
    explicit seq_packet_socket_service(boost::asio::io_service& io_service)
      : boost::asio::detail::service_base<
          seq_packet_socket_service<Protocol> >(io_service),
        service_impl_(io_service)
    {
    }
  
    /// Construct a new sequenced packet socket implementation.
    void construct(implementation_type& impl)
    {
      service_impl_.construct(impl);
    }
  
  #if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
    /// Move-construct a new sequenced packet socket implementation.
    void move_construct(implementation_type& impl,
        implementation_type& other_impl)
    {
      service_impl_.move_construct(impl, other_impl);
    }
  
    /// Move-assign from another sequenced packet socket implementation.
    void move_assign(implementation_type& impl,
        seq_packet_socket_service& other_service,
        implementation_type& other_impl)
    {
      service_impl_.move_assign(impl, other_service.service_impl_, other_impl);
    }
  
    /// Move-construct a new sequenced packet socket implementation from another
    /// protocol type.
    template <typename Protocol1>
    void converting_move_construct(implementation_type& impl,
        typename seq_packet_socket_service<
          Protocol1>::implementation_type& other_impl,
        typename enable_if<is_convertible<
          Protocol1, Protocol>::value>::type* = 0)
    {
      service_impl_.template converting_move_construct<Protocol1>(
          impl, other_impl);
    }
  #endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
  
    /// Destroy a sequenced packet socket implementation.
    void destroy(implementation_type& impl)
    {
      service_impl_.destroy(impl);
    }
  
    /// Open a sequenced packet socket.
    boost::system::error_code open(implementation_type& impl,
        const protocol_type& protocol, boost::system::error_code& ec)
    {
      if (protocol.type() == BOOST_ASIO_OS_DEF(SOCK_SEQPACKET))
        service_impl_.open(impl, protocol, ec);
      else
        ec = boost::asio::error::invalid_argument;
      return ec;
    }
  
    /// Assign an existing native socket to a sequenced packet socket.
    boost::system::error_code assign(implementation_type& impl,
        const protocol_type& protocol, const native_handle_type& native_socket,
        boost::system::error_code& ec)
    {
      return service_impl_.assign(impl, protocol, native_socket, ec);
    }
  
    /// Determine whether the socket is open.
    bool is_open(const implementation_type& impl) const
    {
      return service_impl_.is_open(impl);
    }
  
    /// Close a sequenced packet socket implementation.
    boost::system::error_code close(implementation_type& impl,
        boost::system::error_code& ec)
    {
      return service_impl_.close(impl, ec);
    }
  
    /// (Deprecated: Use native_handle().) Get the native socket implementation.
    native_type native(implementation_type& impl)
    {
      return service_impl_.native_handle(impl);
    }
  
    /// Get the native socket implementation.
    native_handle_type native_handle(implementation_type& impl)
    {
      return service_impl_.native_handle(impl);
    }
  
    /// Cancel all asynchronous operations associated with the socket.
    boost::system::error_code cancel(implementation_type& impl,
        boost::system::error_code& ec)
    {
      return service_impl_.cancel(impl, ec);
    }
  
    /// Determine whether the socket is at the out-of-band data mark.
    bool at_mark(const implementation_type& impl,
        boost::system::error_code& ec) const
    {
      return service_impl_.at_mark(impl, ec);
    }
  
    /// Determine the number of bytes available for reading.
    std::size_t available(const implementation_type& impl,
        boost::system::error_code& ec) const
    {
      return service_impl_.available(impl, ec);
    }
  
    /// Bind the sequenced packet socket to the specified local endpoint.
    boost::system::error_code bind(implementation_type& impl,
        const endpoint_type& endpoint, boost::system::error_code& ec)
    {
      return service_impl_.bind(impl, endpoint, ec);
    }
  
    /// Connect the sequenced packet socket to the specified endpoint.
    boost::system::error_code connect(implementation_type& impl,
        const endpoint_type& peer_endpoint, boost::system::error_code& ec)
    {
      return service_impl_.connect(impl, peer_endpoint, ec);
    }
  
    /// Start an asynchronous connect.
    template <typename ConnectHandler>
    BOOST_ASIO_INITFN_RESULT_TYPE(ConnectHandler,
        void (boost::system::error_code))
    async_connect(implementation_type& impl,
        const endpoint_type& peer_endpoint,
        BOOST_ASIO_MOVE_ARG(ConnectHandler) handler)
    {
      detail::async_result_init<
        ConnectHandler, void (boost::system::error_code)> init(
          BOOST_ASIO_MOVE_CAST(ConnectHandler)(handler));
  
      service_impl_.async_connect(impl, peer_endpoint, init.handler);
  
      return init.result.get();
    }
  
    /// Set a socket option.
    template <typename SettableSocketOption>
    boost::system::error_code set_option(implementation_type& impl,
        const SettableSocketOption& option, boost::system::error_code& ec)
    {
      return service_impl_.set_option(impl, option, ec);
    }
  
    /// Get a socket option.
    template <typename GettableSocketOption>
    boost::system::error_code get_option(const implementation_type& impl,
        GettableSocketOption& option, boost::system::error_code& ec) const
    {
      return service_impl_.get_option(impl, option, ec);
    }
  
    /// Perform an IO control command on the socket.
    template <typename IoControlCommand>
    boost::system::error_code io_control(implementation_type& impl,
        IoControlCommand& command, boost::system::error_code& ec)
    {
      return service_impl_.io_control(impl, command, ec);
    }
  
    /// Gets the non-blocking mode of the socket.
    bool non_blocking(const implementation_type& impl) const
    {
      return service_impl_.non_blocking(impl);
    }
  
    /// Sets the non-blocking mode of the socket.
    boost::system::error_code non_blocking(implementation_type& impl,
        bool mode, boost::system::error_code& ec)
    {
      return service_impl_.non_blocking(impl, mode, ec);
    }
  
    /// Gets the non-blocking mode of the native socket implementation.
    bool native_non_blocking(const implementation_type& impl) const
    {
      return service_impl_.native_non_blocking(impl);
    }
  
    /// Sets the non-blocking mode of the native socket implementation.
    boost::system::error_code native_non_blocking(implementation_type& impl,
        bool mode, boost::system::error_code& ec)
    {
      return service_impl_.native_non_blocking(impl, mode, ec);
    }
  
    /// Get the local endpoint.
    endpoint_type local_endpoint(const implementation_type& impl,
        boost::system::error_code& ec) const
    {
      return service_impl_.local_endpoint(impl, ec);
    }
  
    /// Get the remote endpoint.
    endpoint_type remote_endpoint(const implementation_type& impl,
        boost::system::error_code& ec) const
    {
      return service_impl_.remote_endpoint(impl, ec);
    }
  
    /// Disable sends or receives on the socket.
    boost::system::error_code shutdown(implementation_type& impl,
        socket_base::shutdown_type what, boost::system::error_code& ec)
    {
      return service_impl_.shutdown(impl, what, ec);
    }
  
    /// Send the given data to the peer.
    template <typename ConstBufferSequence>
    std::size_t send(implementation_type& impl,
        const ConstBufferSequence& buffers,
        socket_base::message_flags flags, boost::system::error_code& ec)
    {
      return service_impl_.send(impl, buffers, flags, ec);
    }
  
    /// Start an asynchronous send.
    template <typename ConstBufferSequence, typename WriteHandler>
    BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler,
        void (boost::system::error_code, std::size_t))
    async_send(implementation_type& impl,
        const ConstBufferSequence& buffers,
        socket_base::message_flags flags,
        BOOST_ASIO_MOVE_ARG(WriteHandler) handler)
    {
      detail::async_result_init<
        WriteHandler, void (boost::system::error_code, std::size_t)> init(
          BOOST_ASIO_MOVE_CAST(WriteHandler)(handler));
  
      service_impl_.async_send(impl, buffers, flags, init.handler);
  
      return init.result.get();
    }
  
    /// Receive some data from the peer.
    template <typename MutableBufferSequence>
    std::size_t receive(implementation_type& impl,
        const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
        socket_base::message_flags& out_flags, boost::system::error_code& ec)
    {
      return service_impl_.receive_with_flags(impl,
          buffers, in_flags, out_flags, ec);
    }
  
    /// Start an asynchronous receive.
    template <typename MutableBufferSequence, typename ReadHandler>
    BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler,
        void (boost::system::error_code, std::size_t))
    async_receive(implementation_type& impl,
        const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
        socket_base::message_flags& out_flags,
        BOOST_ASIO_MOVE_ARG(ReadHandler) handler)
    {
      detail::async_result_init<
        ReadHandler, void (boost::system::error_code, std::size_t)> init(
          BOOST_ASIO_MOVE_CAST(ReadHandler)(handler));
  
      service_impl_.async_receive_with_flags(impl,
          buffers, in_flags, out_flags, init.handler);
  
      return init.result.get();
    }
  
  private:
    // Destroy all user-defined handler objects owned by the service.
    void shutdown_service()
    {
      service_impl_.shutdown_service();
    }
  
    // The platform-specific implementation.
    service_impl_type service_impl_;
  };
  
  } // namespace asio
  } // namespace boost
  
  #include <boost/asio/detail/pop_options.hpp>
  
  #endif // BOOST_ASIO_SEQ_PACKET_SOCKET_SERVICE_HPP
  