| // |
| // basic_socket.hpp |
| // ~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2011 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_BASIC_SOCKET_HPP |
| #define BOOST_ASIO_BASIC_SOCKET_HPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include <boost/asio/detail/config.hpp> |
| #include <boost/asio/basic_io_object.hpp> |
| #include <boost/asio/detail/handler_type_requirements.hpp> |
| #include <boost/asio/detail/throw_error.hpp> |
| #include <boost/asio/error.hpp> |
| #include <boost/asio/socket_base.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| |
| /// Provides socket functionality. |
| /** |
| * The basic_socket class template provides functionality that is common to both |
| * stream-oriented and datagram-oriented sockets. |
| * |
| * @par Thread Safety |
| * @e Distinct @e objects: Safe.@n |
| * @e Shared @e objects: Unsafe. |
| */ |
| template <typename Protocol, typename SocketService> |
| class basic_socket |
| : public basic_io_object<SocketService>, |
| public socket_base |
| { |
| public: |
| /// (Deprecated: Use native_handle_type.) The native representation of a |
| /// socket. |
| typedef typename SocketService::native_handle_type native_type; |
| |
| /// The native representation of a socket. |
| typedef typename SocketService::native_handle_type native_handle_type; |
| |
| /// The protocol type. |
| typedef Protocol protocol_type; |
| |
| /// The endpoint type. |
| typedef typename Protocol::endpoint endpoint_type; |
| |
| /// A basic_socket is always the lowest layer. |
| typedef basic_socket<Protocol, SocketService> lowest_layer_type; |
| |
| /// Construct a basic_socket without opening it. |
| /** |
| * This constructor creates a socket without opening it. |
| * |
| * @param io_service The io_service object that the socket will use to |
| * dispatch handlers for any asynchronous operations performed on the socket. |
| */ |
| explicit basic_socket(boost::asio::io_service& io_service) |
| : basic_io_object<SocketService>(io_service) |
| { |
| } |
| |
| /// Construct and open a basic_socket. |
| /** |
| * This constructor creates and opens a socket. |
| * |
| * @param io_service The io_service object that the socket will use to |
| * dispatch handlers for any asynchronous operations performed on the socket. |
| * |
| * @param protocol An object specifying protocol parameters to be used. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| basic_socket(boost::asio::io_service& io_service, |
| const protocol_type& protocol) |
| : basic_io_object<SocketService>(io_service) |
| { |
| boost::system::error_code ec; |
| this->get_service().open(this->get_implementation(), protocol, ec); |
| boost::asio::detail::throw_error(ec, "open"); |
| } |
| |
| /// Construct a basic_socket, opening it and binding it to the given local |
| /// endpoint. |
| /** |
| * This constructor creates a socket and automatically opens it bound to the |
| * specified endpoint on the local machine. The protocol used is the protocol |
| * associated with the given endpoint. |
| * |
| * @param io_service The io_service object that the socket will use to |
| * dispatch handlers for any asynchronous operations performed on the socket. |
| * |
| * @param endpoint An endpoint on the local machine to which the socket will |
| * be bound. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| basic_socket(boost::asio::io_service& io_service, |
| const endpoint_type& endpoint) |
| : basic_io_object<SocketService>(io_service) |
| { |
| boost::system::error_code ec; |
| const protocol_type protocol = endpoint.protocol(); |
| this->get_service().open(this->get_implementation(), protocol, ec); |
| boost::asio::detail::throw_error(ec, "open"); |
| this->get_service().bind(this->get_implementation(), endpoint, ec); |
| boost::asio::detail::throw_error(ec, "bind"); |
| } |
| |
| /// Construct a basic_socket on an existing native socket. |
| /** |
| * This constructor creates a socket object to hold an existing native socket. |
| * |
| * @param io_service The io_service object that the socket will use to |
| * dispatch handlers for any asynchronous operations performed on the socket. |
| * |
| * @param protocol An object specifying protocol parameters to be used. |
| * |
| * @param native_socket A native socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| basic_socket(boost::asio::io_service& io_service, |
| const protocol_type& protocol, const native_handle_type& native_socket) |
| : basic_io_object<SocketService>(io_service) |
| { |
| boost::system::error_code ec; |
| this->get_service().assign(this->get_implementation(), |
| protocol, native_socket, ec); |
| boost::asio::detail::throw_error(ec, "assign"); |
| } |
| |
| #if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) |
| /// Move-construct a basic_socket from another. |
| /** |
| * This constructor moves a socket from one object to another. |
| * |
| * @param other The other basic_socket object from which the move will |
| * occur. |
| * |
| * @note Following the move, the moved-from object is in the same state as if |
| * constructed using the @c basic_socket(io_service&) constructor. |
| */ |
| basic_socket(basic_socket&& other) |
| : basic_io_object<SocketService>( |
| BOOST_ASIO_MOVE_CAST(basic_socket)(other)) |
| { |
| } |
| |
| /// Move-assign a basic_socket from another. |
| /** |
| * This assignment operator moves a socket from one object to another. |
| * |
| * @param other The other basic_socket object from which the move will |
| * occur. |
| * |
| * @note Following the move, the moved-from object is in the same state as if |
| * constructed using the @c basic_socket(io_service&) constructor. |
| */ |
| basic_socket& operator=(basic_socket&& other) |
| { |
| basic_io_object<SocketService>::operator=( |
| BOOST_ASIO_MOVE_CAST(basic_socket)(other)); |
| return *this; |
| } |
| #endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) |
| |
| /// Get a reference to the lowest layer. |
| /** |
| * This function returns a reference to the lowest layer in a stack of |
| * layers. Since a basic_socket cannot contain any further layers, it simply |
| * returns a reference to itself. |
| * |
| * @return A reference to the lowest layer in the stack of layers. Ownership |
| * is not transferred to the caller. |
| */ |
| lowest_layer_type& lowest_layer() |
| { |
| return *this; |
| } |
| |
| /// Get a const reference to the lowest layer. |
| /** |
| * This function returns a const reference to the lowest layer in a stack of |
| * layers. Since a basic_socket cannot contain any further layers, it simply |
| * returns a reference to itself. |
| * |
| * @return A const reference to the lowest layer in the stack of layers. |
| * Ownership is not transferred to the caller. |
| */ |
| const lowest_layer_type& lowest_layer() const |
| { |
| return *this; |
| } |
| |
| /// Open the socket using the specified protocol. |
| /** |
| * This function opens the socket so that it will use the specified protocol. |
| * |
| * @param protocol An object specifying protocol parameters to be used. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * socket.open(boost::asio::ip::tcp::v4()); |
| * @endcode |
| */ |
| void open(const protocol_type& protocol = protocol_type()) |
| { |
| boost::system::error_code ec; |
| this->get_service().open(this->get_implementation(), protocol, ec); |
| boost::asio::detail::throw_error(ec, "open"); |
| } |
| |
| /// Open the socket using the specified protocol. |
| /** |
| * This function opens the socket so that it will use the specified protocol. |
| * |
| * @param protocol An object specifying which protocol is to be used. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * boost::system::error_code ec; |
| * socket.open(boost::asio::ip::tcp::v4(), ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| boost::system::error_code open(const protocol_type& protocol, |
| boost::system::error_code& ec) |
| { |
| return this->get_service().open(this->get_implementation(), protocol, ec); |
| } |
| |
| /// Assign an existing native socket to the socket. |
| /* |
| * This function opens the socket to hold an existing native socket. |
| * |
| * @param protocol An object specifying which protocol is to be used. |
| * |
| * @param native_socket A native socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| void assign(const protocol_type& protocol, |
| const native_handle_type& native_socket) |
| { |
| boost::system::error_code ec; |
| this->get_service().assign(this->get_implementation(), |
| protocol, native_socket, ec); |
| boost::asio::detail::throw_error(ec, "assign"); |
| } |
| |
| /// Assign an existing native socket to the socket. |
| /* |
| * This function opens the socket to hold an existing native socket. |
| * |
| * @param protocol An object specifying which protocol is to be used. |
| * |
| * @param native_socket A native socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| */ |
| boost::system::error_code assign(const protocol_type& protocol, |
| const native_handle_type& native_socket, boost::system::error_code& ec) |
| { |
| return this->get_service().assign(this->get_implementation(), |
| protocol, native_socket, ec); |
| } |
| |
| /// Determine whether the socket is open. |
| bool is_open() const |
| { |
| return this->get_service().is_open(this->get_implementation()); |
| } |
| |
| /// Close the socket. |
| /** |
| * This function is used to close the socket. Any asynchronous send, receive |
| * or connect operations will be cancelled immediately, and will complete |
| * with the boost::asio::error::operation_aborted error. |
| * |
| * @throws boost::system::system_error Thrown on failure. Note that, even if |
| * the function indicates an error, the underlying descriptor is closed. |
| * |
| * @note For portable behaviour with respect to graceful closure of a |
| * connected socket, call shutdown() before closing the socket. |
| */ |
| void close() |
| { |
| boost::system::error_code ec; |
| this->get_service().close(this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "close"); |
| } |
| |
| /// Close the socket. |
| /** |
| * This function is used to close the socket. Any asynchronous send, receive |
| * or connect operations will be cancelled immediately, and will complete |
| * with the boost::asio::error::operation_aborted error. |
| * |
| * @param ec Set to indicate what error occurred, if any. Note that, even if |
| * the function indicates an error, the underlying descriptor is closed. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::system::error_code ec; |
| * socket.close(ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| * |
| * @note For portable behaviour with respect to graceful closure of a |
| * connected socket, call shutdown() before closing the socket. |
| */ |
| boost::system::error_code close(boost::system::error_code& ec) |
| { |
| return this->get_service().close(this->get_implementation(), ec); |
| } |
| |
| /// (Deprecated: Use native_handle().) Get the native socket representation. |
| /** |
| * This function may be used to obtain the underlying representation of the |
| * socket. This is intended to allow access to native socket functionality |
| * that is not otherwise provided. |
| */ |
| native_type native() |
| { |
| return this->get_service().native_handle(this->get_implementation()); |
| } |
| |
| /// Get the native socket representation. |
| /** |
| * This function may be used to obtain the underlying representation of the |
| * socket. This is intended to allow access to native socket functionality |
| * that is not otherwise provided. |
| */ |
| native_handle_type native_handle() |
| { |
| return this->get_service().native_handle(this->get_implementation()); |
| } |
| |
| /// Cancel all asynchronous operations associated with the socket. |
| /** |
| * This function causes all outstanding asynchronous connect, send and receive |
| * operations to finish immediately, and the handlers for cancelled operations |
| * will be passed the boost::asio::error::operation_aborted error. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @note Calls to cancel() will always fail with |
| * boost::asio::error::operation_not_supported when run on Windows XP, Windows |
| * Server 2003, and earlier versions of Windows, unless |
| * BOOST_ASIO_ENABLE_CANCELIO is defined. However, the CancelIo function has |
| * two issues that should be considered before enabling its use: |
| * |
| * @li It will only cancel asynchronous operations that were initiated in the |
| * current thread. |
| * |
| * @li It can appear to complete without error, but the request to cancel the |
| * unfinished operations may be silently ignored by the operating system. |
| * Whether it works or not seems to depend on the drivers that are installed. |
| * |
| * For portable cancellation, consider using one of the following |
| * alternatives: |
| * |
| * @li Disable asio's I/O completion port backend by defining |
| * BOOST_ASIO_DISABLE_IOCP. |
| * |
| * @li Use the close() function to simultaneously cancel the outstanding |
| * operations and close the socket. |
| * |
| * When running on Windows Vista, Windows Server 2008, and later, the |
| * CancelIoEx function is always used. This function does not have the |
| * problems described above. |
| */ |
| #if defined(BOOST_MSVC) && (BOOST_MSVC >= 1400) \ |
| && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600) \ |
| && !defined(BOOST_ASIO_ENABLE_CANCELIO) |
| __declspec(deprecated("By default, this function always fails with " |
| "operation_not_supported when used on Windows XP, Windows Server 2003, " |
| "or earlier. Consult documentation for details.")) |
| #endif |
| void cancel() |
| { |
| boost::system::error_code ec; |
| this->get_service().cancel(this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "cancel"); |
| } |
| |
| /// Cancel all asynchronous operations associated with the socket. |
| /** |
| * This function causes all outstanding asynchronous connect, send and receive |
| * operations to finish immediately, and the handlers for cancelled operations |
| * will be passed the boost::asio::error::operation_aborted error. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @note Calls to cancel() will always fail with |
| * boost::asio::error::operation_not_supported when run on Windows XP, Windows |
| * Server 2003, and earlier versions of Windows, unless |
| * BOOST_ASIO_ENABLE_CANCELIO is defined. However, the CancelIo function has |
| * two issues that should be considered before enabling its use: |
| * |
| * @li It will only cancel asynchronous operations that were initiated in the |
| * current thread. |
| * |
| * @li It can appear to complete without error, but the request to cancel the |
| * unfinished operations may be silently ignored by the operating system. |
| * Whether it works or not seems to depend on the drivers that are installed. |
| * |
| * For portable cancellation, consider using one of the following |
| * alternatives: |
| * |
| * @li Disable asio's I/O completion port backend by defining |
| * BOOST_ASIO_DISABLE_IOCP. |
| * |
| * @li Use the close() function to simultaneously cancel the outstanding |
| * operations and close the socket. |
| * |
| * When running on Windows Vista, Windows Server 2008, and later, the |
| * CancelIoEx function is always used. This function does not have the |
| * problems described above. |
| */ |
| #if defined(BOOST_MSVC) && (BOOST_MSVC >= 1400) \ |
| && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600) \ |
| && !defined(BOOST_ASIO_ENABLE_CANCELIO) |
| __declspec(deprecated("By default, this function always fails with " |
| "operation_not_supported when used on Windows XP, Windows Server 2003, " |
| "or earlier. Consult documentation for details.")) |
| #endif |
| boost::system::error_code cancel(boost::system::error_code& ec) |
| { |
| return this->get_service().cancel(this->get_implementation(), ec); |
| } |
| |
| /// Determine whether the socket is at the out-of-band data mark. |
| /** |
| * This function is used to check whether the socket input is currently |
| * positioned at the out-of-band data mark. |
| * |
| * @return A bool indicating whether the socket is at the out-of-band data |
| * mark. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| bool at_mark() const |
| { |
| boost::system::error_code ec; |
| bool b = this->get_service().at_mark(this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "at_mark"); |
| return b; |
| } |
| |
| /// Determine whether the socket is at the out-of-band data mark. |
| /** |
| * This function is used to check whether the socket input is currently |
| * positioned at the out-of-band data mark. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @return A bool indicating whether the socket is at the out-of-band data |
| * mark. |
| */ |
| bool at_mark(boost::system::error_code& ec) const |
| { |
| return this->get_service().at_mark(this->get_implementation(), ec); |
| } |
| |
| /// Determine the number of bytes available for reading. |
| /** |
| * This function is used to determine the number of bytes that may be read |
| * without blocking. |
| * |
| * @return The number of bytes that may be read without blocking, or 0 if an |
| * error occurs. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| */ |
| std::size_t available() const |
| { |
| boost::system::error_code ec; |
| std::size_t s = this->get_service().available( |
| this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "available"); |
| return s; |
| } |
| |
| /// Determine the number of bytes available for reading. |
| /** |
| * This function is used to determine the number of bytes that may be read |
| * without blocking. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @return The number of bytes that may be read without blocking, or 0 if an |
| * error occurs. |
| */ |
| std::size_t available(boost::system::error_code& ec) const |
| { |
| return this->get_service().available(this->get_implementation(), ec); |
| } |
| |
| /// Bind the socket to the given local endpoint. |
| /** |
| * This function binds the socket to the specified endpoint on the local |
| * machine. |
| * |
| * @param endpoint An endpoint on the local machine to which the socket will |
| * be bound. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * socket.open(boost::asio::ip::tcp::v4()); |
| * socket.bind(boost::asio::ip::tcp::endpoint( |
| * boost::asio::ip::tcp::v4(), 12345)); |
| * @endcode |
| */ |
| void bind(const endpoint_type& endpoint) |
| { |
| boost::system::error_code ec; |
| this->get_service().bind(this->get_implementation(), endpoint, ec); |
| boost::asio::detail::throw_error(ec, "bind"); |
| } |
| |
| /// Bind the socket to the given local endpoint. |
| /** |
| * This function binds the socket to the specified endpoint on the local |
| * machine. |
| * |
| * @param endpoint An endpoint on the local machine to which the socket will |
| * be bound. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * socket.open(boost::asio::ip::tcp::v4()); |
| * boost::system::error_code ec; |
| * socket.bind(boost::asio::ip::tcp::endpoint( |
| * boost::asio::ip::tcp::v4(), 12345), ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| boost::system::error_code bind(const endpoint_type& endpoint, |
| boost::system::error_code& ec) |
| { |
| return this->get_service().bind(this->get_implementation(), endpoint, ec); |
| } |
| |
| /// Connect the socket to the specified endpoint. |
| /** |
| * This function is used to connect a socket to the specified remote endpoint. |
| * The function call will block until the connection is successfully made or |
| * an error occurs. |
| * |
| * The socket is automatically opened if it is not already open. If the |
| * connect fails, and the socket was automatically opened, the socket is |
| * not returned to the closed state. |
| * |
| * @param peer_endpoint The remote endpoint to which the socket will be |
| * connected. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * boost::asio::ip::tcp::endpoint endpoint( |
| * boost::asio::ip::address::from_string("1.2.3.4"), 12345); |
| * socket.connect(endpoint); |
| * @endcode |
| */ |
| void connect(const endpoint_type& peer_endpoint) |
| { |
| boost::system::error_code ec; |
| if (!is_open()) |
| { |
| this->get_service().open(this->get_implementation(), |
| peer_endpoint.protocol(), ec); |
| boost::asio::detail::throw_error(ec, "connect"); |
| } |
| this->get_service().connect(this->get_implementation(), peer_endpoint, ec); |
| boost::asio::detail::throw_error(ec, "connect"); |
| } |
| |
| /// Connect the socket to the specified endpoint. |
| /** |
| * This function is used to connect a socket to the specified remote endpoint. |
| * The function call will block until the connection is successfully made or |
| * an error occurs. |
| * |
| * The socket is automatically opened if it is not already open. If the |
| * connect fails, and the socket was automatically opened, the socket is |
| * not returned to the closed state. |
| * |
| * @param peer_endpoint The remote endpoint to which the socket will be |
| * connected. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * boost::asio::ip::tcp::endpoint endpoint( |
| * boost::asio::ip::address::from_string("1.2.3.4"), 12345); |
| * boost::system::error_code ec; |
| * socket.connect(endpoint, ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| boost::system::error_code connect(const endpoint_type& peer_endpoint, |
| boost::system::error_code& ec) |
| { |
| if (!is_open()) |
| { |
| if (this->get_service().open(this->get_implementation(), |
| peer_endpoint.protocol(), ec)) |
| { |
| return ec; |
| } |
| } |
| |
| return this->get_service().connect( |
| this->get_implementation(), peer_endpoint, ec); |
| } |
| |
| /// Start an asynchronous connect. |
| /** |
| * This function is used to asynchronously connect a socket to the specified |
| * remote endpoint. The function call always returns immediately. |
| * |
| * The socket is automatically opened if it is not already open. If the |
| * connect fails, and the socket was automatically opened, the socket is |
| * not returned to the closed state. |
| * |
| * @param peer_endpoint The remote endpoint to which the socket will be |
| * connected. Copies will be made of the endpoint object as required. |
| * |
| * @param handler The handler to be called when the connection operation |
| * completes. Copies will be made of the handler as required. The function |
| * signature of the handler must be: |
| * @code void handler( |
| * const boost::system::error_code& error // Result of operation |
| * ); @endcode |
| * Regardless of whether the asynchronous operation completes immediately or |
| * not, the handler will not be invoked from within this function. Invocation |
| * of the handler will be performed in a manner equivalent to using |
| * boost::asio::io_service::post(). |
| * |
| * @par Example |
| * @code |
| * void connect_handler(const boost::system::error_code& error) |
| * { |
| * if (!error) |
| * { |
| * // Connect succeeded. |
| * } |
| * } |
| * |
| * ... |
| * |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * boost::asio::ip::tcp::endpoint endpoint( |
| * boost::asio::ip::address::from_string("1.2.3.4"), 12345); |
| * socket.async_connect(endpoint, connect_handler); |
| * @endcode |
| */ |
| template <typename ConnectHandler> |
| void async_connect(const endpoint_type& peer_endpoint, |
| BOOST_ASIO_MOVE_ARG(ConnectHandler) handler) |
| { |
| // If you get an error on the following line it means that your handler does |
| // not meet the documented type requirements for a ConnectHandler. |
| BOOST_ASIO_CONNECT_HANDLER_CHECK(ConnectHandler, handler) type_check; |
| |
| if (!is_open()) |
| { |
| boost::system::error_code ec; |
| const protocol_type protocol = peer_endpoint.protocol(); |
| if (this->get_service().open(this->get_implementation(), protocol, ec)) |
| { |
| this->get_io_service().post( |
| boost::asio::detail::bind_handler( |
| BOOST_ASIO_MOVE_CAST(ConnectHandler)(handler), ec)); |
| return; |
| } |
| } |
| |
| this->get_service().async_connect(this->get_implementation(), |
| peer_endpoint, BOOST_ASIO_MOVE_CAST(ConnectHandler)(handler)); |
| } |
| |
| /// Set an option on the socket. |
| /** |
| * This function is used to set an option on the socket. |
| * |
| * @param option The new option value to be set on the socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @sa SettableSocketOption @n |
| * boost::asio::socket_base::broadcast @n |
| * boost::asio::socket_base::do_not_route @n |
| * boost::asio::socket_base::keep_alive @n |
| * boost::asio::socket_base::linger @n |
| * boost::asio::socket_base::receive_buffer_size @n |
| * boost::asio::socket_base::receive_low_watermark @n |
| * boost::asio::socket_base::reuse_address @n |
| * boost::asio::socket_base::send_buffer_size @n |
| * boost::asio::socket_base::send_low_watermark @n |
| * boost::asio::ip::multicast::join_group @n |
| * boost::asio::ip::multicast::leave_group @n |
| * boost::asio::ip::multicast::enable_loopback @n |
| * boost::asio::ip::multicast::outbound_interface @n |
| * boost::asio::ip::multicast::hops @n |
| * boost::asio::ip::tcp::no_delay |
| * |
| * @par Example |
| * Setting the IPPROTO_TCP/TCP_NODELAY option: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::no_delay option(true); |
| * socket.set_option(option); |
| * @endcode |
| */ |
| template <typename SettableSocketOption> |
| void set_option(const SettableSocketOption& option) |
| { |
| boost::system::error_code ec; |
| this->get_service().set_option(this->get_implementation(), option, ec); |
| boost::asio::detail::throw_error(ec, "set_option"); |
| } |
| |
| /// Set an option on the socket. |
| /** |
| * This function is used to set an option on the socket. |
| * |
| * @param option The new option value to be set on the socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @sa SettableSocketOption @n |
| * boost::asio::socket_base::broadcast @n |
| * boost::asio::socket_base::do_not_route @n |
| * boost::asio::socket_base::keep_alive @n |
| * boost::asio::socket_base::linger @n |
| * boost::asio::socket_base::receive_buffer_size @n |
| * boost::asio::socket_base::receive_low_watermark @n |
| * boost::asio::socket_base::reuse_address @n |
| * boost::asio::socket_base::send_buffer_size @n |
| * boost::asio::socket_base::send_low_watermark @n |
| * boost::asio::ip::multicast::join_group @n |
| * boost::asio::ip::multicast::leave_group @n |
| * boost::asio::ip::multicast::enable_loopback @n |
| * boost::asio::ip::multicast::outbound_interface @n |
| * boost::asio::ip::multicast::hops @n |
| * boost::asio::ip::tcp::no_delay |
| * |
| * @par Example |
| * Setting the IPPROTO_TCP/TCP_NODELAY option: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::no_delay option(true); |
| * boost::system::error_code ec; |
| * socket.set_option(option, ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| template <typename SettableSocketOption> |
| boost::system::error_code set_option(const SettableSocketOption& option, |
| boost::system::error_code& ec) |
| { |
| return this->get_service().set_option( |
| this->get_implementation(), option, ec); |
| } |
| |
| /// Get an option from the socket. |
| /** |
| * This function is used to get the current value of an option on the socket. |
| * |
| * @param option The option value to be obtained from the socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @sa GettableSocketOption @n |
| * boost::asio::socket_base::broadcast @n |
| * boost::asio::socket_base::do_not_route @n |
| * boost::asio::socket_base::keep_alive @n |
| * boost::asio::socket_base::linger @n |
| * boost::asio::socket_base::receive_buffer_size @n |
| * boost::asio::socket_base::receive_low_watermark @n |
| * boost::asio::socket_base::reuse_address @n |
| * boost::asio::socket_base::send_buffer_size @n |
| * boost::asio::socket_base::send_low_watermark @n |
| * boost::asio::ip::multicast::join_group @n |
| * boost::asio::ip::multicast::leave_group @n |
| * boost::asio::ip::multicast::enable_loopback @n |
| * boost::asio::ip::multicast::outbound_interface @n |
| * boost::asio::ip::multicast::hops @n |
| * boost::asio::ip::tcp::no_delay |
| * |
| * @par Example |
| * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::socket::keep_alive option; |
| * socket.get_option(option); |
| * bool is_set = option.get(); |
| * @endcode |
| */ |
| template <typename GettableSocketOption> |
| void get_option(GettableSocketOption& option) const |
| { |
| boost::system::error_code ec; |
| this->get_service().get_option(this->get_implementation(), option, ec); |
| boost::asio::detail::throw_error(ec, "get_option"); |
| } |
| |
| /// Get an option from the socket. |
| /** |
| * This function is used to get the current value of an option on the socket. |
| * |
| * @param option The option value to be obtained from the socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @sa GettableSocketOption @n |
| * boost::asio::socket_base::broadcast @n |
| * boost::asio::socket_base::do_not_route @n |
| * boost::asio::socket_base::keep_alive @n |
| * boost::asio::socket_base::linger @n |
| * boost::asio::socket_base::receive_buffer_size @n |
| * boost::asio::socket_base::receive_low_watermark @n |
| * boost::asio::socket_base::reuse_address @n |
| * boost::asio::socket_base::send_buffer_size @n |
| * boost::asio::socket_base::send_low_watermark @n |
| * boost::asio::ip::multicast::join_group @n |
| * boost::asio::ip::multicast::leave_group @n |
| * boost::asio::ip::multicast::enable_loopback @n |
| * boost::asio::ip::multicast::outbound_interface @n |
| * boost::asio::ip::multicast::hops @n |
| * boost::asio::ip::tcp::no_delay |
| * |
| * @par Example |
| * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::socket::keep_alive option; |
| * boost::system::error_code ec; |
| * socket.get_option(option, ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * bool is_set = option.get(); |
| * @endcode |
| */ |
| template <typename GettableSocketOption> |
| boost::system::error_code get_option(GettableSocketOption& option, |
| boost::system::error_code& ec) const |
| { |
| return this->get_service().get_option( |
| this->get_implementation(), option, ec); |
| } |
| |
| /// Perform an IO control command on the socket. |
| /** |
| * This function is used to execute an IO control command on the socket. |
| * |
| * @param command The IO control command to be performed on the socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @sa IoControlCommand @n |
| * boost::asio::socket_base::bytes_readable @n |
| * boost::asio::socket_base::non_blocking_io |
| * |
| * @par Example |
| * Getting the number of bytes ready to read: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::socket::bytes_readable command; |
| * socket.io_control(command); |
| * std::size_t bytes_readable = command.get(); |
| * @endcode |
| */ |
| template <typename IoControlCommand> |
| void io_control(IoControlCommand& command) |
| { |
| boost::system::error_code ec; |
| this->get_service().io_control(this->get_implementation(), command, ec); |
| boost::asio::detail::throw_error(ec, "io_control"); |
| } |
| |
| /// Perform an IO control command on the socket. |
| /** |
| * This function is used to execute an IO control command on the socket. |
| * |
| * @param command The IO control command to be performed on the socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @sa IoControlCommand @n |
| * boost::asio::socket_base::bytes_readable @n |
| * boost::asio::socket_base::non_blocking_io |
| * |
| * @par Example |
| * Getting the number of bytes ready to read: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::socket::bytes_readable command; |
| * boost::system::error_code ec; |
| * socket.io_control(command, ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * std::size_t bytes_readable = command.get(); |
| * @endcode |
| */ |
| template <typename IoControlCommand> |
| boost::system::error_code io_control(IoControlCommand& command, |
| boost::system::error_code& ec) |
| { |
| return this->get_service().io_control( |
| this->get_implementation(), command, ec); |
| } |
| |
| /// Gets the non-blocking mode of the socket. |
| /** |
| * @returns @c true if the socket's synchronous operations will fail with |
| * boost::asio::error::would_block if they are unable to perform the requested |
| * operation immediately. If @c false, synchronous operations will block |
| * until complete. |
| * |
| * @note The non-blocking mode has no effect on the behaviour of asynchronous |
| * operations. Asynchronous operations will never fail with the error |
| * boost::asio::error::would_block. |
| */ |
| bool non_blocking() const |
| { |
| return this->get_service().non_blocking(this->get_implementation()); |
| } |
| |
| /// Sets the non-blocking mode of the socket. |
| /** |
| * @param mode If @c true, the socket's synchronous operations will fail with |
| * boost::asio::error::would_block if they are unable to perform the requested |
| * operation immediately. If @c false, synchronous operations will block |
| * until complete. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @note The non-blocking mode has no effect on the behaviour of asynchronous |
| * operations. Asynchronous operations will never fail with the error |
| * boost::asio::error::would_block. |
| */ |
| void non_blocking(bool mode) |
| { |
| boost::system::error_code ec; |
| this->get_service().non_blocking(this->get_implementation(), mode, ec); |
| boost::asio::detail::throw_error(ec, "non_blocking"); |
| } |
| |
| /// Sets the non-blocking mode of the socket. |
| /** |
| * @param mode If @c true, the socket's synchronous operations will fail with |
| * boost::asio::error::would_block if they are unable to perform the requested |
| * operation immediately. If @c false, synchronous operations will block |
| * until complete. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @note The non-blocking mode has no effect on the behaviour of asynchronous |
| * operations. Asynchronous operations will never fail with the error |
| * boost::asio::error::would_block. |
| */ |
| boost::system::error_code non_blocking( |
| bool mode, boost::system::error_code& ec) |
| { |
| return this->get_service().non_blocking( |
| this->get_implementation(), mode, ec); |
| } |
| |
| /// Gets the non-blocking mode of the native socket implementation. |
| /** |
| * This function is used to retrieve the non-blocking mode of the underlying |
| * native socket. This mode has no effect on the behaviour of the socket |
| * object's synchronous operations. |
| * |
| * @returns @c true if the underlying socket is in non-blocking mode and |
| * direct system calls may fail with boost::asio::error::would_block (or the |
| * equivalent system error). |
| * |
| * @note The current non-blocking mode is cached by the socket object. |
| * Consequently, the return value may be incorrect if the non-blocking mode |
| * was set directly on the native socket. |
| * |
| * @par Example |
| * This function is intended to allow the encapsulation of arbitrary |
| * non-blocking system calls as asynchronous operations, in a way that is |
| * transparent to the user of the socket object. The following example |
| * illustrates how Linux's @c sendfile system call might be encapsulated: |
| * @code template <typename Handler> |
| * struct sendfile_op |
| * { |
| * tcp::socket& sock_; |
| * int fd_; |
| * Handler handler_; |
| * off_t offset_; |
| * std::size_t total_bytes_transferred_; |
| * |
| * // Function call operator meeting WriteHandler requirements. |
| * // Used as the handler for the async_write_some operation. |
| * void operator()(boost::system::error_code ec, std::size_t) |
| * { |
| * // Put the underlying socket into non-blocking mode. |
| * if (!ec) |
| * if (!sock_.native_non_blocking()) |
| * sock_.native_non_blocking(true, ec); |
| * |
| * if (!ec) |
| * { |
| * for (;;) |
| * { |
| * // Try the system call. |
| * errno = 0; |
| * int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536); |
| * ec = boost::system::error_code(n < 0 ? errno : 0, |
| * boost::asio::error::get_system_category()); |
| * total_bytes_transferred_ += ec ? 0 : n; |
| * |
| * // Retry operation immediately if interrupted by signal. |
| * if (ec == boost::asio::error::interrupted) |
| * continue; |
| * |
| * // Check if we need to run the operation again. |
| * if (ec == boost::asio::error::would_block |
| * || ec == boost::asio::error::try_again) |
| * { |
| * // We have to wait for the socket to become ready again. |
| * sock_.async_write_some(boost::asio::null_buffers(), *this); |
| * return; |
| * } |
| * |
| * if (ec || n == 0) |
| * { |
| * // An error occurred, or we have reached the end of the file. |
| * // Either way we must exit the loop so we can call the handler. |
| * break; |
| * } |
| * |
| * // Loop around to try calling sendfile again. |
| * } |
| * } |
| * |
| * // Pass result back to user's handler. |
| * handler_(ec, total_bytes_transferred_); |
| * } |
| * }; |
| * |
| * template <typename Handler> |
| * void async_sendfile(tcp::socket& sock, int fd, Handler h) |
| * { |
| * sendfile_op<Handler> op = { sock, fd, h, 0, 0 }; |
| * sock.async_write_some(boost::asio::null_buffers(), op); |
| * } @endcode |
| */ |
| bool native_non_blocking() const |
| { |
| return this->get_service().native_non_blocking(this->get_implementation()); |
| } |
| |
| /// Sets the non-blocking mode of the native socket implementation. |
| /** |
| * This function is used to modify the non-blocking mode of the underlying |
| * native socket. It has no effect on the behaviour of the socket object's |
| * synchronous operations. |
| * |
| * @param mode If @c true, the underlying socket is put into non-blocking |
| * mode and direct system calls may fail with boost::asio::error::would_block |
| * (or the equivalent system error). |
| * |
| * @throws boost::system::system_error Thrown on failure. If the @c mode is |
| * @c false, but the current value of @c non_blocking() is @c true, this |
| * function fails with boost::asio::error::invalid_argument, as the |
| * combination does not make sense. |
| * |
| * @par Example |
| * This function is intended to allow the encapsulation of arbitrary |
| * non-blocking system calls as asynchronous operations, in a way that is |
| * transparent to the user of the socket object. The following example |
| * illustrates how Linux's @c sendfile system call might be encapsulated: |
| * @code template <typename Handler> |
| * struct sendfile_op |
| * { |
| * tcp::socket& sock_; |
| * int fd_; |
| * Handler handler_; |
| * off_t offset_; |
| * std::size_t total_bytes_transferred_; |
| * |
| * // Function call operator meeting WriteHandler requirements. |
| * // Used as the handler for the async_write_some operation. |
| * void operator()(boost::system::error_code ec, std::size_t) |
| * { |
| * // Put the underlying socket into non-blocking mode. |
| * if (!ec) |
| * if (!sock_.native_non_blocking()) |
| * sock_.native_non_blocking(true, ec); |
| * |
| * if (!ec) |
| * { |
| * for (;;) |
| * { |
| * // Try the system call. |
| * errno = 0; |
| * int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536); |
| * ec = boost::system::error_code(n < 0 ? errno : 0, |
| * boost::asio::error::get_system_category()); |
| * total_bytes_transferred_ += ec ? 0 : n; |
| * |
| * // Retry operation immediately if interrupted by signal. |
| * if (ec == boost::asio::error::interrupted) |
| * continue; |
| * |
| * // Check if we need to run the operation again. |
| * if (ec == boost::asio::error::would_block |
| * || ec == boost::asio::error::try_again) |
| * { |
| * // We have to wait for the socket to become ready again. |
| * sock_.async_write_some(boost::asio::null_buffers(), *this); |
| * return; |
| * } |
| * |
| * if (ec || n == 0) |
| * { |
| * // An error occurred, or we have reached the end of the file. |
| * // Either way we must exit the loop so we can call the handler. |
| * break; |
| * } |
| * |
| * // Loop around to try calling sendfile again. |
| * } |
| * } |
| * |
| * // Pass result back to user's handler. |
| * handler_(ec, total_bytes_transferred_); |
| * } |
| * }; |
| * |
| * template <typename Handler> |
| * void async_sendfile(tcp::socket& sock, int fd, Handler h) |
| * { |
| * sendfile_op<Handler> op = { sock, fd, h, 0, 0 }; |
| * sock.async_write_some(boost::asio::null_buffers(), op); |
| * } @endcode |
| */ |
| void native_non_blocking(bool mode) |
| { |
| boost::system::error_code ec; |
| this->get_service().native_non_blocking( |
| this->get_implementation(), mode, ec); |
| boost::asio::detail::throw_error(ec, "native_non_blocking"); |
| } |
| |
| /// Sets the non-blocking mode of the native socket implementation. |
| /** |
| * This function is used to modify the non-blocking mode of the underlying |
| * native socket. It has no effect on the behaviour of the socket object's |
| * synchronous operations. |
| * |
| * @param mode If @c true, the underlying socket is put into non-blocking |
| * mode and direct system calls may fail with boost::asio::error::would_block |
| * (or the equivalent system error). |
| * |
| * @param ec Set to indicate what error occurred, if any. If the @c mode is |
| * @c false, but the current value of @c non_blocking() is @c true, this |
| * function fails with boost::asio::error::invalid_argument, as the |
| * combination does not make sense. |
| * |
| * @par Example |
| * This function is intended to allow the encapsulation of arbitrary |
| * non-blocking system calls as asynchronous operations, in a way that is |
| * transparent to the user of the socket object. The following example |
| * illustrates how Linux's @c sendfile system call might be encapsulated: |
| * @code template <typename Handler> |
| * struct sendfile_op |
| * { |
| * tcp::socket& sock_; |
| * int fd_; |
| * Handler handler_; |
| * off_t offset_; |
| * std::size_t total_bytes_transferred_; |
| * |
| * // Function call operator meeting WriteHandler requirements. |
| * // Used as the handler for the async_write_some operation. |
| * void operator()(boost::system::error_code ec, std::size_t) |
| * { |
| * // Put the underlying socket into non-blocking mode. |
| * if (!ec) |
| * if (!sock_.native_non_blocking()) |
| * sock_.native_non_blocking(true, ec); |
| * |
| * if (!ec) |
| * { |
| * for (;;) |
| * { |
| * // Try the system call. |
| * errno = 0; |
| * int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536); |
| * ec = boost::system::error_code(n < 0 ? errno : 0, |
| * boost::asio::error::get_system_category()); |
| * total_bytes_transferred_ += ec ? 0 : n; |
| * |
| * // Retry operation immediately if interrupted by signal. |
| * if (ec == boost::asio::error::interrupted) |
| * continue; |
| * |
| * // Check if we need to run the operation again. |
| * if (ec == boost::asio::error::would_block |
| * || ec == boost::asio::error::try_again) |
| * { |
| * // We have to wait for the socket to become ready again. |
| * sock_.async_write_some(boost::asio::null_buffers(), *this); |
| * return; |
| * } |
| * |
| * if (ec || n == 0) |
| * { |
| * // An error occurred, or we have reached the end of the file. |
| * // Either way we must exit the loop so we can call the handler. |
| * break; |
| * } |
| * |
| * // Loop around to try calling sendfile again. |
| * } |
| * } |
| * |
| * // Pass result back to user's handler. |
| * handler_(ec, total_bytes_transferred_); |
| * } |
| * }; |
| * |
| * template <typename Handler> |
| * void async_sendfile(tcp::socket& sock, int fd, Handler h) |
| * { |
| * sendfile_op<Handler> op = { sock, fd, h, 0, 0 }; |
| * sock.async_write_some(boost::asio::null_buffers(), op); |
| * } @endcode |
| */ |
| boost::system::error_code native_non_blocking( |
| bool mode, boost::system::error_code& ec) |
| { |
| return this->get_service().native_non_blocking( |
| this->get_implementation(), mode, ec); |
| } |
| |
| /// Get the local endpoint of the socket. |
| /** |
| * This function is used to obtain the locally bound endpoint of the socket. |
| * |
| * @returns An object that represents the local endpoint of the socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::endpoint endpoint = socket.local_endpoint(); |
| * @endcode |
| */ |
| endpoint_type local_endpoint() const |
| { |
| boost::system::error_code ec; |
| endpoint_type ep = this->get_service().local_endpoint( |
| this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "local_endpoint"); |
| return ep; |
| } |
| |
| /// Get the local endpoint of the socket. |
| /** |
| * This function is used to obtain the locally bound endpoint of the socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @returns An object that represents the local endpoint of the socket. |
| * Returns a default-constructed endpoint object if an error occurred. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::system::error_code ec; |
| * boost::asio::ip::tcp::endpoint endpoint = socket.local_endpoint(ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| endpoint_type local_endpoint(boost::system::error_code& ec) const |
| { |
| return this->get_service().local_endpoint(this->get_implementation(), ec); |
| } |
| |
| /// Get the remote endpoint of the socket. |
| /** |
| * This function is used to obtain the remote endpoint of the socket. |
| * |
| * @returns An object that represents the remote endpoint of the socket. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::asio::ip::tcp::endpoint endpoint = socket.remote_endpoint(); |
| * @endcode |
| */ |
| endpoint_type remote_endpoint() const |
| { |
| boost::system::error_code ec; |
| endpoint_type ep = this->get_service().remote_endpoint( |
| this->get_implementation(), ec); |
| boost::asio::detail::throw_error(ec, "remote_endpoint"); |
| return ep; |
| } |
| |
| /// Get the remote endpoint of the socket. |
| /** |
| * This function is used to obtain the remote endpoint of the socket. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @returns An object that represents the remote endpoint of the socket. |
| * Returns a default-constructed endpoint object if an error occurred. |
| * |
| * @par Example |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::system::error_code ec; |
| * boost::asio::ip::tcp::endpoint endpoint = socket.remote_endpoint(ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| endpoint_type remote_endpoint(boost::system::error_code& ec) const |
| { |
| return this->get_service().remote_endpoint(this->get_implementation(), ec); |
| } |
| |
| /// Disable sends or receives on the socket. |
| /** |
| * This function is used to disable send operations, receive operations, or |
| * both. |
| * |
| * @param what Determines what types of operation will no longer be allowed. |
| * |
| * @throws boost::system::system_error Thrown on failure. |
| * |
| * @par Example |
| * Shutting down the send side of the socket: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * socket.shutdown(boost::asio::ip::tcp::socket::shutdown_send); |
| * @endcode |
| */ |
| void shutdown(shutdown_type what) |
| { |
| boost::system::error_code ec; |
| this->get_service().shutdown(this->get_implementation(), what, ec); |
| boost::asio::detail::throw_error(ec, "shutdown"); |
| } |
| |
| /// Disable sends or receives on the socket. |
| /** |
| * This function is used to disable send operations, receive operations, or |
| * both. |
| * |
| * @param what Determines what types of operation will no longer be allowed. |
| * |
| * @param ec Set to indicate what error occurred, if any. |
| * |
| * @par Example |
| * Shutting down the send side of the socket: |
| * @code |
| * boost::asio::ip::tcp::socket socket(io_service); |
| * ... |
| * boost::system::error_code ec; |
| * socket.shutdown(boost::asio::ip::tcp::socket::shutdown_send, ec); |
| * if (ec) |
| * { |
| * // An error occurred. |
| * } |
| * @endcode |
| */ |
| boost::system::error_code shutdown(shutdown_type what, |
| boost::system::error_code& ec) |
| { |
| return this->get_service().shutdown(this->get_implementation(), what, ec); |
| } |
| |
| protected: |
| /// Protected destructor to prevent deletion through this type. |
| ~basic_socket() |
| { |
| } |
| }; |
| |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // BOOST_ASIO_BASIC_SOCKET_HPP |