diff options
Diffstat (limited to 'boost/asio/basic_raw_socket.hpp')
| -rw-r--r-- | boost/asio/basic_raw_socket.hpp | 882 |
1 files changed, 882 insertions, 0 deletions
diff --git a/boost/asio/basic_raw_socket.hpp b/boost/asio/basic_raw_socket.hpp new file mode 100644 index 0000000000..90f66c00c0 --- /dev/null +++ b/boost/asio/basic_raw_socket.hpp @@ -0,0 +1,882 @@ +// +// basic_raw_socket.hpp +// ~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2012 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_RAW_SOCKET_HPP +#define BOOST_ASIO_BASIC_RAW_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 <cstddef> +#include <boost/asio/basic_socket.hpp> +#include <boost/asio/detail/handler_type_requirements.hpp> +#include <boost/asio/detail/throw_error.hpp> +#include <boost/asio/error.hpp> +#include <boost/asio/raw_socket_service.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { + +/// Provides raw-oriented socket functionality. +/** + * The basic_raw_socket class template provides asynchronous and blocking + * raw-oriented socket functionality. + * + * @par Thread Safety + * @e Distinct @e objects: Safe.@n + * @e Shared @e objects: Unsafe. + */ +template <typename Protocol, + typename RawSocketService = raw_socket_service<Protocol> > +class basic_raw_socket + : public basic_socket<Protocol, RawSocketService> +{ +public: + /// (Deprecated: Use native_handle_type.) The native representation of a + /// socket. + typedef typename RawSocketService::native_handle_type native_type; + + /// The native representation of a socket. + typedef typename RawSocketService::native_handle_type native_handle_type; + + /// The protocol type. + typedef Protocol protocol_type; + + /// The endpoint type. + typedef typename Protocol::endpoint endpoint_type; + + /// Construct a basic_raw_socket without opening it. + /** + * This constructor creates a raw socket without opening it. The open() + * function must be called before data can be sent or received on the socket. + * + * @param io_service The io_service object that the raw socket will use + * to dispatch handlers for any asynchronous operations performed on the + * socket. + */ + explicit basic_raw_socket(boost::asio::io_service& io_service) + : basic_socket<Protocol, RawSocketService>(io_service) + { + } + + /// Construct and open a basic_raw_socket. + /** + * This constructor creates and opens a raw socket. + * + * @param io_service The io_service object that the raw 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_raw_socket(boost::asio::io_service& io_service, + const protocol_type& protocol) + : basic_socket<Protocol, RawSocketService>(io_service, protocol) + { + } + + /// Construct a basic_raw_socket, opening it and binding it to the given + /// local endpoint. + /** + * This constructor creates a raw 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 raw 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 raw + * socket will be bound. + * + * @throws boost::system::system_error Thrown on failure. + */ + basic_raw_socket(boost::asio::io_service& io_service, + const endpoint_type& endpoint) + : basic_socket<Protocol, RawSocketService>(io_service, endpoint) + { + } + + /// Construct a basic_raw_socket on an existing native socket. + /** + * This constructor creates a raw socket object to hold an existing + * native socket. + * + * @param io_service The io_service object that the raw 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 The new underlying socket implementation. + * + * @throws boost::system::system_error Thrown on failure. + */ + basic_raw_socket(boost::asio::io_service& io_service, + const protocol_type& protocol, const native_handle_type& native_socket) + : basic_socket<Protocol, RawSocketService>( + io_service, protocol, native_socket) + { + } + +#if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + /// Move-construct a basic_raw_socket from another. + /** + * This constructor moves a raw socket from one object to another. + * + * @param other The other basic_raw_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_raw_socket(io_service&) constructor. + */ + basic_raw_socket(basic_raw_socket&& other) + : basic_socket<Protocol, RawSocketService>( + BOOST_ASIO_MOVE_CAST(basic_raw_socket)(other)) + { + } + + /// Move-assign a basic_raw_socket from another. + /** + * This assignment operator moves a raw socket from one object to another. + * + * @param other The other basic_raw_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_raw_socket(io_service&) constructor. + */ + basic_raw_socket& operator=(basic_raw_socket&& other) + { + basic_socket<Protocol, RawSocketService>::operator=( + BOOST_ASIO_MOVE_CAST(basic_raw_socket)(other)); + return *this; + } +#endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION) + + /// Send some data on a connected socket. + /** + * This function is used to send data on the raw socket. The function call + * will block until the data has been sent successfully or an error occurs. + * + * @param buffers One ore more data buffers to be sent on the socket. + * + * @returns The number of bytes sent. + * + * @throws boost::system::system_error Thrown on failure. + * + * @note The send operation can only be used with a connected socket. Use + * the send_to function to send data on an unconnected raw socket. + * + * @par Example + * To send a single data buffer use the @ref buffer function as follows: + * @code socket.send(boost::asio::buffer(data, size)); @endcode + * See the @ref buffer documentation for information on sending multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence> + std::size_t send(const ConstBufferSequence& buffers) + { + boost::system::error_code ec; + std::size_t s = this->get_service().send( + this->get_implementation(), buffers, 0, ec); + boost::asio::detail::throw_error(ec, "send"); + return s; + } + + /// Send some data on a connected socket. + /** + * This function is used to send data on the raw socket. The function call + * will block until the data has been sent successfully or an error occurs. + * + * @param buffers One ore more data buffers to be sent on the socket. + * + * @param flags Flags specifying how the send call is to be made. + * + * @returns The number of bytes sent. + * + * @throws boost::system::system_error Thrown on failure. + * + * @note The send operation can only be used with a connected socket. Use + * the send_to function to send data on an unconnected raw socket. + */ + template <typename ConstBufferSequence> + std::size_t send(const ConstBufferSequence& buffers, + socket_base::message_flags flags) + { + boost::system::error_code ec; + std::size_t s = this->get_service().send( + this->get_implementation(), buffers, flags, ec); + boost::asio::detail::throw_error(ec, "send"); + return s; + } + + /// Send some data on a connected socket. + /** + * This function is used to send data on the raw socket. The function call + * will block until the data has been sent successfully or an error occurs. + * + * @param buffers One or more data buffers to be sent on the socket. + * + * @param flags Flags specifying how the send call is to be made. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes sent. + * + * @note The send operation can only be used with a connected socket. Use + * the send_to function to send data on an unconnected raw socket. + */ + template <typename ConstBufferSequence> + std::size_t send(const ConstBufferSequence& buffers, + socket_base::message_flags flags, boost::system::error_code& ec) + { + return this->get_service().send( + this->get_implementation(), buffers, flags, ec); + } + + /// Start an asynchronous send on a connected socket. + /** + * This function is used to send data on the raw socket. The function call + * will block until the data has been sent successfully or an error occurs. + * + * @param buffers One or more data buffers to be sent on the socket. Although + * the buffers object may be copied as necessary, ownership of the underlying + * memory blocks is retained by the caller, which must guarantee that they + * remain valid until the handler is called. + * + * @param handler The handler to be called when the send 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. + * std::size_t bytes_transferred // Number of bytes sent. + * ); @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(). + * + * @note The async_send operation can only be used with a connected socket. + * Use the async_send_to function to send data on an unconnected raw + * socket. + * + * @par Example + * To send a single data buffer use the @ref buffer function as follows: + * @code + * socket.async_send(boost::asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on sending multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence, typename WriteHandler> + void async_send(const ConstBufferSequence& buffers, + BOOST_ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + BOOST_ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + this->get_service().async_send(this->get_implementation(), + buffers, 0, BOOST_ASIO_MOVE_CAST(WriteHandler)(handler)); + } + + /// Start an asynchronous send on a connected socket. + /** + * This function is used to send data on the raw socket. The function call + * will block until the data has been sent successfully or an error occurs. + * + * @param buffers One or more data buffers to be sent on the socket. Although + * the buffers object may be copied as necessary, ownership of the underlying + * memory blocks is retained by the caller, which must guarantee that they + * remain valid until the handler is called. + * + * @param flags Flags specifying how the send call is to be made. + * + * @param handler The handler to be called when the send 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. + * std::size_t bytes_transferred // Number of bytes sent. + * ); @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(). + * + * @note The async_send operation can only be used with a connected socket. + * Use the async_send_to function to send data on an unconnected raw + * socket. + */ + template <typename ConstBufferSequence, typename WriteHandler> + void async_send(const ConstBufferSequence& buffers, + socket_base::message_flags flags, + BOOST_ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + BOOST_ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + this->get_service().async_send(this->get_implementation(), + buffers, flags, BOOST_ASIO_MOVE_CAST(WriteHandler)(handler)); + } + + /// Send raw data to the specified endpoint. + /** + * This function is used to send raw data to the specified remote endpoint. + * The function call will block until the data has been sent successfully or + * an error occurs. + * + * @param buffers One or more data buffers to be sent to the remote endpoint. + * + * @param destination The remote endpoint to which the data will be sent. + * + * @returns The number of bytes sent. + * + * @throws boost::system::system_error Thrown on failure. + * + * @par Example + * To send a single data buffer use the @ref buffer function as follows: + * @code + * boost::asio::ip::udp::endpoint destination( + * boost::asio::ip::address::from_string("1.2.3.4"), 12345); + * socket.send_to(boost::asio::buffer(data, size), destination); + * @endcode + * See the @ref buffer documentation for information on sending multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence> + std::size_t send_to(const ConstBufferSequence& buffers, + const endpoint_type& destination) + { + boost::system::error_code ec; + std::size_t s = this->get_service().send_to( + this->get_implementation(), buffers, destination, 0, ec); + boost::asio::detail::throw_error(ec, "send_to"); + return s; + } + + /// Send raw data to the specified endpoint. + /** + * This function is used to send raw data to the specified remote endpoint. + * The function call will block until the data has been sent successfully or + * an error occurs. + * + * @param buffers One or more data buffers to be sent to the remote endpoint. + * + * @param destination The remote endpoint to which the data will be sent. + * + * @param flags Flags specifying how the send call is to be made. + * + * @returns The number of bytes sent. + * + * @throws boost::system::system_error Thrown on failure. + */ + template <typename ConstBufferSequence> + std::size_t send_to(const ConstBufferSequence& buffers, + const endpoint_type& destination, socket_base::message_flags flags) + { + boost::system::error_code ec; + std::size_t s = this->get_service().send_to( + this->get_implementation(), buffers, destination, flags, ec); + boost::asio::detail::throw_error(ec, "send_to"); + return s; + } + + /// Send raw data to the specified endpoint. + /** + * This function is used to send raw data to the specified remote endpoint. + * The function call will block until the data has been sent successfully or + * an error occurs. + * + * @param buffers One or more data buffers to be sent to the remote endpoint. + * + * @param destination The remote endpoint to which the data will be sent. + * + * @param flags Flags specifying how the send call is to be made. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes sent. + */ + template <typename ConstBufferSequence> + std::size_t send_to(const ConstBufferSequence& buffers, + const endpoint_type& destination, socket_base::message_flags flags, + boost::system::error_code& ec) + { + return this->get_service().send_to(this->get_implementation(), + buffers, destination, flags, ec); + } + + /// Start an asynchronous send. + /** + * This function is used to asynchronously send raw data to the specified + * remote endpoint. The function call always returns immediately. + * + * @param buffers One or more data buffers to be sent to the remote endpoint. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param destination The remote endpoint to which the data will be sent. + * Copies will be made of the endpoint as required. + * + * @param handler The handler to be called when the send 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. + * std::size_t bytes_transferred // Number of bytes sent. + * ); @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 + * To send a single data buffer use the @ref buffer function as follows: + * @code + * boost::asio::ip::udp::endpoint destination( + * boost::asio::ip::address::from_string("1.2.3.4"), 12345); + * socket.async_send_to( + * boost::asio::buffer(data, size), destination, handler); + * @endcode + * See the @ref buffer documentation for information on sending multiple + * buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename ConstBufferSequence, typename WriteHandler> + void async_send_to(const ConstBufferSequence& buffers, + const endpoint_type& destination, + BOOST_ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + BOOST_ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + this->get_service().async_send_to(this->get_implementation(), buffers, + destination, 0, BOOST_ASIO_MOVE_CAST(WriteHandler)(handler)); + } + + /// Start an asynchronous send. + /** + * This function is used to asynchronously send raw data to the specified + * remote endpoint. The function call always returns immediately. + * + * @param buffers One or more data buffers to be sent to the remote endpoint. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param flags Flags specifying how the send call is to be made. + * + * @param destination The remote endpoint to which the data will be sent. + * Copies will be made of the endpoint as required. + * + * @param handler The handler to be called when the send 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. + * std::size_t bytes_transferred // Number of bytes sent. + * ); @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(). + */ + template <typename ConstBufferSequence, typename WriteHandler> + void async_send_to(const ConstBufferSequence& buffers, + const endpoint_type& destination, socket_base::message_flags flags, + BOOST_ASIO_MOVE_ARG(WriteHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a WriteHandler. + BOOST_ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check; + + this->get_service().async_send_to(this->get_implementation(), buffers, + destination, flags, BOOST_ASIO_MOVE_CAST(WriteHandler)(handler)); + } + + /// Receive some data on a connected socket. + /** + * This function is used to receive data on the raw socket. The function + * call will block until data has been received successfully or an error + * occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @returns The number of bytes received. + * + * @throws boost::system::system_error Thrown on failure. + * + * @note The receive operation can only be used with a connected socket. Use + * the receive_from function to receive data on an unconnected raw + * socket. + * + * @par Example + * To receive into a single data buffer use the @ref buffer function as + * follows: + * @code socket.receive(boost::asio::buffer(data, size)); @endcode + * See the @ref buffer documentation for information on receiving into + * multiple buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence> + std::size_t receive(const MutableBufferSequence& buffers) + { + boost::system::error_code ec; + std::size_t s = this->get_service().receive( + this->get_implementation(), buffers, 0, ec); + boost::asio::detail::throw_error(ec, "receive"); + return s; + } + + /// Receive some data on a connected socket. + /** + * This function is used to receive data on the raw socket. The function + * call will block until data has been received successfully or an error + * occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @returns The number of bytes received. + * + * @throws boost::system::system_error Thrown on failure. + * + * @note The receive operation can only be used with a connected socket. Use + * the receive_from function to receive data on an unconnected raw + * socket. + */ + template <typename MutableBufferSequence> + std::size_t receive(const MutableBufferSequence& buffers, + socket_base::message_flags flags) + { + boost::system::error_code ec; + std::size_t s = this->get_service().receive( + this->get_implementation(), buffers, flags, ec); + boost::asio::detail::throw_error(ec, "receive"); + return s; + } + + /// Receive some data on a connected socket. + /** + * This function is used to receive data on the raw socket. The function + * call will block until data has been received successfully or an error + * occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes received. + * + * @note The receive operation can only be used with a connected socket. Use + * the receive_from function to receive data on an unconnected raw + * socket. + */ + template <typename MutableBufferSequence> + std::size_t receive(const MutableBufferSequence& buffers, + socket_base::message_flags flags, boost::system::error_code& ec) + { + return this->get_service().receive( + this->get_implementation(), buffers, flags, ec); + } + + /// Start an asynchronous receive on a connected socket. + /** + * This function is used to asynchronously receive data from the raw + * socket. The function call always returns immediately. + * + * @param buffers One or more buffers into which the data will be received. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param handler The handler to be called when the receive 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. + * std::size_t bytes_transferred // Number of bytes received. + * ); @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(). + * + * @note The async_receive operation can only be used with a connected socket. + * Use the async_receive_from function to receive data on an unconnected + * raw socket. + * + * @par Example + * To receive into a single data buffer use the @ref buffer function as + * follows: + * @code + * socket.async_receive(boost::asio::buffer(data, size), handler); + * @endcode + * See the @ref buffer documentation for information on receiving into + * multiple buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence, typename ReadHandler> + void async_receive(const MutableBufferSequence& buffers, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + this->get_service().async_receive(this->get_implementation(), + buffers, 0, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); + } + + /// Start an asynchronous receive on a connected socket. + /** + * This function is used to asynchronously receive data from the raw + * socket. The function call always returns immediately. + * + * @param buffers One or more buffers into which the data will be received. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @param handler The handler to be called when the receive 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. + * std::size_t bytes_transferred // Number of bytes received. + * ); @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(). + * + * @note The async_receive operation can only be used with a connected socket. + * Use the async_receive_from function to receive data on an unconnected + * raw socket. + */ + template <typename MutableBufferSequence, typename ReadHandler> + void async_receive(const MutableBufferSequence& buffers, + socket_base::message_flags flags, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + this->get_service().async_receive(this->get_implementation(), + buffers, flags, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); + } + + /// Receive raw data with the endpoint of the sender. + /** + * This function is used to receive raw data. The function call will block + * until data has been received successfully or an error occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @param sender_endpoint An endpoint object that receives the endpoint of + * the remote sender of the data. + * + * @returns The number of bytes received. + * + * @throws boost::system::system_error Thrown on failure. + * + * @par Example + * To receive into a single data buffer use the @ref buffer function as + * follows: + * @code + * boost::asio::ip::udp::endpoint sender_endpoint; + * socket.receive_from( + * boost::asio::buffer(data, size), sender_endpoint); + * @endcode + * See the @ref buffer documentation for information on receiving into + * multiple buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence> + std::size_t receive_from(const MutableBufferSequence& buffers, + endpoint_type& sender_endpoint) + { + boost::system::error_code ec; + std::size_t s = this->get_service().receive_from( + this->get_implementation(), buffers, sender_endpoint, 0, ec); + boost::asio::detail::throw_error(ec, "receive_from"); + return s; + } + + /// Receive raw data with the endpoint of the sender. + /** + * This function is used to receive raw data. The function call will block + * until data has been received successfully or an error occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @param sender_endpoint An endpoint object that receives the endpoint of + * the remote sender of the data. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @returns The number of bytes received. + * + * @throws boost::system::system_error Thrown on failure. + */ + template <typename MutableBufferSequence> + std::size_t receive_from(const MutableBufferSequence& buffers, + endpoint_type& sender_endpoint, socket_base::message_flags flags) + { + boost::system::error_code ec; + std::size_t s = this->get_service().receive_from( + this->get_implementation(), buffers, sender_endpoint, flags, ec); + boost::asio::detail::throw_error(ec, "receive_from"); + return s; + } + + /// Receive raw data with the endpoint of the sender. + /** + * This function is used to receive raw data. The function call will block + * until data has been received successfully or an error occurs. + * + * @param buffers One or more buffers into which the data will be received. + * + * @param sender_endpoint An endpoint object that receives the endpoint of + * the remote sender of the data. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @param ec Set to indicate what error occurred, if any. + * + * @returns The number of bytes received. + */ + template <typename MutableBufferSequence> + std::size_t receive_from(const MutableBufferSequence& buffers, + endpoint_type& sender_endpoint, socket_base::message_flags flags, + boost::system::error_code& ec) + { + return this->get_service().receive_from(this->get_implementation(), + buffers, sender_endpoint, flags, ec); + } + + /// Start an asynchronous receive. + /** + * This function is used to asynchronously receive raw data. The function + * call always returns immediately. + * + * @param buffers One or more buffers into which the data will be received. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param sender_endpoint An endpoint object that receives the endpoint of + * the remote sender of the data. Ownership of the sender_endpoint object + * is retained by the caller, which must guarantee that it is valid until the + * handler is called. + * + * @param handler The handler to be called when the receive 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. + * std::size_t bytes_transferred // Number of bytes received. + * ); @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 + * To receive into a single data buffer use the @ref buffer function as + * follows: + * @code socket.async_receive_from( + * boost::asio::buffer(data, size), 0, sender_endpoint, handler); @endcode + * See the @ref buffer documentation for information on receiving into + * multiple buffers in one go, and how to use it with arrays, boost::array or + * std::vector. + */ + template <typename MutableBufferSequence, typename ReadHandler> + void async_receive_from(const MutableBufferSequence& buffers, + endpoint_type& sender_endpoint, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + this->get_service().async_receive_from(this->get_implementation(), buffers, + sender_endpoint, 0, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); + } + + /// Start an asynchronous receive. + /** + * This function is used to asynchronously receive raw data. The function + * call always returns immediately. + * + * @param buffers One or more buffers into which the data will be received. + * Although the buffers object may be copied as necessary, ownership of the + * underlying memory blocks is retained by the caller, which must guarantee + * that they remain valid until the handler is called. + * + * @param sender_endpoint An endpoint object that receives the endpoint of + * the remote sender of the data. Ownership of the sender_endpoint object + * is retained by the caller, which must guarantee that it is valid until the + * handler is called. + * + * @param flags Flags specifying how the receive call is to be made. + * + * @param handler The handler to be called when the receive 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. + * std::size_t bytes_transferred // Number of bytes received. + * ); @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(). + */ + template <typename MutableBufferSequence, typename ReadHandler> + void async_receive_from(const MutableBufferSequence& buffers, + endpoint_type& sender_endpoint, socket_base::message_flags flags, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) + { + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + this->get_service().async_receive_from(this->get_implementation(), buffers, + sender_endpoint, flags, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); + } +}; + +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_BASIC_RAW_SOCKET_HPP |