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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-10-07 04:52:50 +0200
commit0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch)
treea71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/basic_socket.hpp
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parent0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff)
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-//
-// basic_socket.hpp
-// ~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_BASIC_SOCKET_HPP
-#define ASIO_BASIC_SOCKET_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/async_result.hpp"
-#include "asio/basic_io_object.hpp"
-#include "asio/detail/handler_type_requirements.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/type_traits.hpp"
-#include "asio/error.hpp"
-#include "asio/post.hpp"
-#include "asio/socket_base.hpp"
-
-#if defined(ASIO_HAS_MOVE)
-# include <utility>
-#endif // defined(ASIO_HAS_MOVE)
-
-#if !defined(ASIO_ENABLE_OLD_SERVICES)
-# if defined(ASIO_WINDOWS_RUNTIME)
-# include "asio/detail/winrt_ssocket_service.hpp"
-# define ASIO_SVC_T detail::winrt_ssocket_service<Protocol>
-# elif defined(ASIO_HAS_IOCP)
-# include "asio/detail/win_iocp_socket_service.hpp"
-# define ASIO_SVC_T detail::win_iocp_socket_service<Protocol>
-# else
-# include "asio/detail/reactive_socket_service.hpp"
-# define ASIO_SVC_T detail::reactive_socket_service<Protocol>
-# endif
-#endif // !defined(ASIO_ENABLE_OLD_SERVICES)
-
-#include "asio/detail/push_options.hpp"
-
-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 ASIO_SVC_TPARAM>
-class basic_socket
- : ASIO_SVC_ACCESS basic_io_object<ASIO_SVC_T>,
- public socket_base
-{
-public:
- /// The type of the executor associated with the object.
- typedef io_context::executor_type executor_type;
-
- /// The native representation of a socket.
-#if defined(GENERATING_DOCUMENTATION)
- typedef implementation_defined native_handle_type;
-#else
- typedef typename ASIO_SVC_T::native_handle_type native_handle_type;
-#endif
-
- /// The protocol type.
- typedef Protocol protocol_type;
-
- /// The endpoint type.
- typedef typename Protocol::endpoint endpoint_type;
-
-#if !defined(ASIO_NO_EXTENSIONS)
- /// A basic_socket is always the lowest layer.
- typedef basic_socket<Protocol ASIO_SVC_TARG> lowest_layer_type;
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
- /// Construct a basic_socket without opening it.
- /**
- * This constructor creates a socket without opening it.
- *
- * @param io_context The io_context object that the socket will use to
- * dispatch handlers for any asynchronous operations performed on the socket.
- */
- explicit basic_socket(asio::io_context& io_context)
- : basic_io_object<ASIO_SVC_T>(io_context)
- {
- }
-
- /// Construct and open a basic_socket.
- /**
- * This constructor creates and opens a socket.
- *
- * @param io_context The io_context 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 asio::system_error Thrown on failure.
- */
- basic_socket(asio::io_context& io_context,
- const protocol_type& protocol)
- : basic_io_object<ASIO_SVC_T>(io_context)
- {
- asio::error_code ec;
- this->get_service().open(this->get_implementation(), protocol, ec);
- 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_context The io_context 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 asio::system_error Thrown on failure.
- */
- basic_socket(asio::io_context& io_context,
- const endpoint_type& endpoint)
- : basic_io_object<ASIO_SVC_T>(io_context)
- {
- asio::error_code ec;
- const protocol_type protocol = endpoint.protocol();
- this->get_service().open(this->get_implementation(), protocol, ec);
- asio::detail::throw_error(ec, "open");
- this->get_service().bind(this->get_implementation(), endpoint, ec);
- 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_context The io_context 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 asio::system_error Thrown on failure.
- */
- basic_socket(asio::io_context& io_context,
- const protocol_type& protocol, const native_handle_type& native_socket)
- : basic_io_object<ASIO_SVC_T>(io_context)
- {
- asio::error_code ec;
- this->get_service().assign(this->get_implementation(),
- protocol, native_socket, ec);
- asio::detail::throw_error(ec, "assign");
- }
-
-#if defined(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_context&) constructor.
- */
- basic_socket(basic_socket&& other)
- : basic_io_object<ASIO_SVC_T>(std::move(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_context&) constructor.
- */
- basic_socket& operator=(basic_socket&& other)
- {
- basic_io_object<ASIO_SVC_T>::operator=(std::move(other));
- return *this;
- }
-
- // All sockets have access to each other's implementations.
- template <typename Protocol1 ASIO_SVC_TPARAM1>
- friend class basic_socket;
-
- /// Move-construct a basic_socket from a socket of another protocol type.
- /**
- * 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_context&) constructor.
- */
- template <typename Protocol1 ASIO_SVC_TPARAM1>
- basic_socket(basic_socket<Protocol1 ASIO_SVC_TARG1>&& other,
- typename enable_if<is_convertible<Protocol1, Protocol>::value>::type* = 0)
- : basic_io_object<ASIO_SVC_T>(
- other.get_service(), other.get_implementation())
- {
- }
-
- /// Move-assign a basic_socket from a socket of another protocol type.
- /**
- * 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_context&) constructor.
- */
- template <typename Protocol1 ASIO_SVC_TPARAM1>
- typename enable_if<is_convertible<Protocol1, Protocol>::value,
- basic_socket>::type& operator=(
- basic_socket<Protocol1 ASIO_SVC_TARG1>&& other)
- {
- basic_socket tmp(std::move(other));
- basic_io_object<ASIO_SVC_T>::operator=(std::move(tmp));
- return *this;
- }
-#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
-
-#if defined(ASIO_ENABLE_OLD_SERVICES)
- // These functions are provided by basic_io_object<>.
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
-#if !defined(ASIO_NO_DEPRECATED)
- /// (Deprecated: Use get_executor().) Get the io_context associated with the
- /// object.
- /**
- * This function may be used to obtain the io_context object that the I/O
- * object uses to dispatch handlers for asynchronous operations.
- *
- * @return A reference to the io_context object that the I/O object will use
- * to dispatch handlers. Ownership is not transferred to the caller.
- */
- asio::io_context& get_io_context()
- {
- return basic_io_object<ASIO_SVC_T>::get_io_context();
- }
-
- /// (Deprecated: Use get_executor().) Get the io_context associated with the
- /// object.
- /**
- * This function may be used to obtain the io_context object that the I/O
- * object uses to dispatch handlers for asynchronous operations.
- *
- * @return A reference to the io_context object that the I/O object will use
- * to dispatch handlers. Ownership is not transferred to the caller.
- */
- asio::io_context& get_io_service()
- {
- return basic_io_object<ASIO_SVC_T>::get_io_service();
- }
-#endif // !defined(ASIO_NO_DEPRECATED)
-
- /// Get the executor associated with the object.
- executor_type get_executor() ASIO_NOEXCEPT
- {
- return basic_io_object<ASIO_SVC_T>::get_executor();
- }
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
-
-#if !defined(ASIO_NO_EXTENSIONS)
- /// 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;
- }
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
- /// 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 asio::system_error Thrown on failure.
- *
- * @par Example
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * socket.open(asio::ip::tcp::v4());
- * @endcode
- */
- void open(const protocol_type& protocol = protocol_type())
- {
- asio::error_code ec;
- this->get_service().open(this->get_implementation(), protocol, ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * asio::error_code ec;
- * socket.open(asio::ip::tcp::v4(), ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- ASIO_SYNC_OP_VOID open(const protocol_type& protocol,
- asio::error_code& ec)
- {
- this->get_service().open(this->get_implementation(), protocol, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- */
- void assign(const protocol_type& protocol,
- const native_handle_type& native_socket)
- {
- asio::error_code ec;
- this->get_service().assign(this->get_implementation(),
- protocol, native_socket, ec);
- 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.
- */
- ASIO_SYNC_OP_VOID assign(const protocol_type& protocol,
- const native_handle_type& native_socket, asio::error_code& ec)
- {
- this->get_service().assign(this->get_implementation(),
- protocol, native_socket, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::error::operation_aborted error.
- *
- * @throws asio::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()
- {
- asio::error_code ec;
- this->get_service().close(this->get_implementation(), ec);
- 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 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
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::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.
- */
- ASIO_SYNC_OP_VOID close(asio::error_code& ec)
- {
- this->get_service().close(this->get_implementation(), ec);
- ASIO_SYNC_OP_VOID_RETURN(ec);
- }
-
- /// Release ownership of the underlying native 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 asio::error::operation_aborted error. Ownership
- * of the native socket is then transferred to the caller.
- *
- * @throws asio::system_error Thrown on failure.
- *
- * @note This function is unsupported on Windows versions prior to Windows
- * 8.1, and will fail with asio::error::operation_not_supported on
- * these platforms.
- */
-#if defined(ASIO_MSVC) && (ASIO_MSVC >= 1400) \
- && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0603)
- __declspec(deprecated("This function always fails with "
- "operation_not_supported when used on Windows versions "
- "prior to Windows 8.1."))
-#endif
- native_handle_type release()
- {
- asio::error_code ec;
- native_handle_type s = this->get_service().release(
- this->get_implementation(), ec);
- asio::detail::throw_error(ec, "release");
- return s;
- }
-
- /// Release ownership of the underlying native 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 asio::error::operation_aborted error. Ownership
- * of the native socket is then transferred to the caller.
- *
- * @param ec Set to indicate what error occurred, if any.
- *
- * @note This function is unsupported on Windows versions prior to Windows
- * 8.1, and will fail with asio::error::operation_not_supported on
- * these platforms.
- */
-#if defined(ASIO_MSVC) && (ASIO_MSVC >= 1400) \
- && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0603)
- __declspec(deprecated("This function always fails with "
- "operation_not_supported when used on Windows versions "
- "prior to Windows 8.1."))
-#endif
- native_handle_type release(asio::error_code& ec)
- {
- return this->get_service().release(this->get_implementation(), ec);
- }
-
- /// 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 asio::error::operation_aborted error.
- *
- * @throws asio::system_error Thrown on failure.
- *
- * @note Calls to cancel() will always fail with
- * asio::error::operation_not_supported when run on Windows XP, Windows
- * Server 2003, and earlier versions of Windows, unless
- * 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
- * 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(ASIO_MSVC) && (ASIO_MSVC >= 1400) \
- && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600) \
- && !defined(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()
- {
- asio::error_code ec;
- this->get_service().cancel(this->get_implementation(), ec);
- 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 asio::error::operation_aborted error.
- *
- * @param ec Set to indicate what error occurred, if any.
- *
- * @note Calls to cancel() will always fail with
- * asio::error::operation_not_supported when run on Windows XP, Windows
- * Server 2003, and earlier versions of Windows, unless
- * 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
- * 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(ASIO_MSVC) && (ASIO_MSVC >= 1400) \
- && (!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600) \
- && !defined(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
- ASIO_SYNC_OP_VOID cancel(asio::error_code& ec)
- {
- this->get_service().cancel(this->get_implementation(), ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- */
- bool at_mark() const
- {
- asio::error_code ec;
- bool b = this->get_service().at_mark(this->get_implementation(), ec);
- 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(asio::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 asio::system_error Thrown on failure.
- */
- std::size_t available() const
- {
- asio::error_code ec;
- std::size_t s = this->get_service().available(
- this->get_implementation(), ec);
- 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(asio::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 asio::system_error Thrown on failure.
- *
- * @par Example
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * socket.open(asio::ip::tcp::v4());
- * socket.bind(asio::ip::tcp::endpoint(
- * asio::ip::tcp::v4(), 12345));
- * @endcode
- */
- void bind(const endpoint_type& endpoint)
- {
- asio::error_code ec;
- this->get_service().bind(this->get_implementation(), endpoint, ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * socket.open(asio::ip::tcp::v4());
- * asio::error_code ec;
- * socket.bind(asio::ip::tcp::endpoint(
- * asio::ip::tcp::v4(), 12345), ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- ASIO_SYNC_OP_VOID bind(const endpoint_type& endpoint,
- asio::error_code& ec)
- {
- this->get_service().bind(this->get_implementation(), endpoint, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- *
- * @par Example
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * asio::ip::tcp::endpoint endpoint(
- * asio::ip::address::from_string("1.2.3.4"), 12345);
- * socket.connect(endpoint);
- * @endcode
- */
- void connect(const endpoint_type& peer_endpoint)
- {
- asio::error_code ec;
- if (!is_open())
- {
- this->get_service().open(this->get_implementation(),
- peer_endpoint.protocol(), ec);
- asio::detail::throw_error(ec, "connect");
- }
- this->get_service().connect(this->get_implementation(), peer_endpoint, ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * asio::ip::tcp::endpoint endpoint(
- * asio::ip::address::from_string("1.2.3.4"), 12345);
- * asio::error_code ec;
- * socket.connect(endpoint, ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- ASIO_SYNC_OP_VOID connect(const endpoint_type& peer_endpoint,
- asio::error_code& ec)
- {
- if (!is_open())
- {
- this->get_service().open(this->get_implementation(),
- peer_endpoint.protocol(), ec);
- if (ec)
- {
- ASIO_SYNC_OP_VOID_RETURN(ec);
- }
- }
-
- this->get_service().connect(this->get_implementation(), peer_endpoint, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::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
- * asio::io_context::post().
- *
- * @par Example
- * @code
- * void connect_handler(const asio::error_code& error)
- * {
- * if (!error)
- * {
- * // Connect succeeded.
- * }
- * }
- *
- * ...
- *
- * asio::ip::tcp::socket socket(io_context);
- * asio::ip::tcp::endpoint endpoint(
- * asio::ip::address::from_string("1.2.3.4"), 12345);
- * socket.async_connect(endpoint, connect_handler);
- * @endcode
- */
- template <typename ConnectHandler>
- ASIO_INITFN_RESULT_TYPE(ConnectHandler,
- void (asio::error_code))
- async_connect(const endpoint_type& peer_endpoint,
- 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.
- ASIO_CONNECT_HANDLER_CHECK(ConnectHandler, handler) type_check;
-
- if (!is_open())
- {
- asio::error_code ec;
- const protocol_type protocol = peer_endpoint.protocol();
- this->get_service().open(this->get_implementation(), protocol, ec);
- if (ec)
- {
- async_completion<ConnectHandler,
- void (asio::error_code)> init(handler);
-
- asio::post(this->get_executor(),
- asio::detail::bind_handler(
- ASIO_MOVE_CAST(ASIO_HANDLER_TYPE(
- ConnectHandler, void (asio::error_code)))(
- init.completion_handler), ec));
-
- return init.result.get();
- }
- }
-
-#if defined(ASIO_ENABLE_OLD_SERVICES)
- return this->get_service().async_connect(this->get_implementation(),
- peer_endpoint, ASIO_MOVE_CAST(ConnectHandler)(handler));
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
- async_completion<ConnectHandler,
- void (asio::error_code)> init(handler);
-
- this->get_service().async_connect(
- this->get_implementation(), peer_endpoint, init.completion_handler);
-
- return init.result.get();
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
- }
-
- /// 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 asio::system_error Thrown on failure.
- *
- * @sa SettableSocketOption @n
- * asio::socket_base::broadcast @n
- * asio::socket_base::do_not_route @n
- * asio::socket_base::keep_alive @n
- * asio::socket_base::linger @n
- * asio::socket_base::receive_buffer_size @n
- * asio::socket_base::receive_low_watermark @n
- * asio::socket_base::reuse_address @n
- * asio::socket_base::send_buffer_size @n
- * asio::socket_base::send_low_watermark @n
- * asio::ip::multicast::join_group @n
- * asio::ip::multicast::leave_group @n
- * asio::ip::multicast::enable_loopback @n
- * asio::ip::multicast::outbound_interface @n
- * asio::ip::multicast::hops @n
- * asio::ip::tcp::no_delay
- *
- * @par Example
- * Setting the IPPROTO_TCP/TCP_NODELAY option:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::no_delay option(true);
- * socket.set_option(option);
- * @endcode
- */
- template <typename SettableSocketOption>
- void set_option(const SettableSocketOption& option)
- {
- asio::error_code ec;
- this->get_service().set_option(this->get_implementation(), option, ec);
- 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
- * asio::socket_base::broadcast @n
- * asio::socket_base::do_not_route @n
- * asio::socket_base::keep_alive @n
- * asio::socket_base::linger @n
- * asio::socket_base::receive_buffer_size @n
- * asio::socket_base::receive_low_watermark @n
- * asio::socket_base::reuse_address @n
- * asio::socket_base::send_buffer_size @n
- * asio::socket_base::send_low_watermark @n
- * asio::ip::multicast::join_group @n
- * asio::ip::multicast::leave_group @n
- * asio::ip::multicast::enable_loopback @n
- * asio::ip::multicast::outbound_interface @n
- * asio::ip::multicast::hops @n
- * asio::ip::tcp::no_delay
- *
- * @par Example
- * Setting the IPPROTO_TCP/TCP_NODELAY option:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::no_delay option(true);
- * asio::error_code ec;
- * socket.set_option(option, ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- template <typename SettableSocketOption>
- ASIO_SYNC_OP_VOID set_option(const SettableSocketOption& option,
- asio::error_code& ec)
- {
- this->get_service().set_option(this->get_implementation(), option, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- *
- * @sa GettableSocketOption @n
- * asio::socket_base::broadcast @n
- * asio::socket_base::do_not_route @n
- * asio::socket_base::keep_alive @n
- * asio::socket_base::linger @n
- * asio::socket_base::receive_buffer_size @n
- * asio::socket_base::receive_low_watermark @n
- * asio::socket_base::reuse_address @n
- * asio::socket_base::send_buffer_size @n
- * asio::socket_base::send_low_watermark @n
- * asio::ip::multicast::join_group @n
- * asio::ip::multicast::leave_group @n
- * asio::ip::multicast::enable_loopback @n
- * asio::ip::multicast::outbound_interface @n
- * asio::ip::multicast::hops @n
- * asio::ip::tcp::no_delay
- *
- * @par Example
- * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::socket::keep_alive option;
- * socket.get_option(option);
- * bool is_set = option.value();
- * @endcode
- */
- template <typename GettableSocketOption>
- void get_option(GettableSocketOption& option) const
- {
- asio::error_code ec;
- this->get_service().get_option(this->get_implementation(), option, ec);
- 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
- * asio::socket_base::broadcast @n
- * asio::socket_base::do_not_route @n
- * asio::socket_base::keep_alive @n
- * asio::socket_base::linger @n
- * asio::socket_base::receive_buffer_size @n
- * asio::socket_base::receive_low_watermark @n
- * asio::socket_base::reuse_address @n
- * asio::socket_base::send_buffer_size @n
- * asio::socket_base::send_low_watermark @n
- * asio::ip::multicast::join_group @n
- * asio::ip::multicast::leave_group @n
- * asio::ip::multicast::enable_loopback @n
- * asio::ip::multicast::outbound_interface @n
- * asio::ip::multicast::hops @n
- * asio::ip::tcp::no_delay
- *
- * @par Example
- * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::socket::keep_alive option;
- * asio::error_code ec;
- * socket.get_option(option, ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * bool is_set = option.value();
- * @endcode
- */
- template <typename GettableSocketOption>
- ASIO_SYNC_OP_VOID get_option(GettableSocketOption& option,
- asio::error_code& ec) const
- {
- this->get_service().get_option(this->get_implementation(), option, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- *
- * @sa IoControlCommand @n
- * asio::socket_base::bytes_readable @n
- * asio::socket_base::non_blocking_io
- *
- * @par Example
- * Getting the number of bytes ready to read:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * 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)
- {
- asio::error_code ec;
- this->get_service().io_control(this->get_implementation(), command, ec);
- 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
- * asio::socket_base::bytes_readable @n
- * asio::socket_base::non_blocking_io
- *
- * @par Example
- * Getting the number of bytes ready to read:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::socket::bytes_readable command;
- * asio::error_code ec;
- * socket.io_control(command, ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * std::size_t bytes_readable = command.get();
- * @endcode
- */
- template <typename IoControlCommand>
- ASIO_SYNC_OP_VOID io_control(IoControlCommand& command,
- asio::error_code& ec)
- {
- this->get_service().io_control(this->get_implementation(), command, ec);
- ASIO_SYNC_OP_VOID_RETURN(ec);
- }
-
- /// Gets the non-blocking mode of the socket.
- /**
- * @returns @c true if the socket's synchronous operations will fail with
- * 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
- * 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
- * asio::error::would_block if they are unable to perform the requested
- * operation immediately. If @c false, synchronous operations will block
- * until complete.
- *
- * @throws asio::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
- * asio::error::would_block.
- */
- void non_blocking(bool mode)
- {
- asio::error_code ec;
- this->get_service().non_blocking(this->get_implementation(), mode, ec);
- 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
- * 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
- * asio::error::would_block.
- */
- ASIO_SYNC_OP_VOID non_blocking(
- bool mode, asio::error_code& ec)
- {
- this->get_service().non_blocking(this->get_implementation(), mode, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 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()(asio::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 = asio::error_code(n < 0 ? errno : 0,
- * asio::error::get_system_category());
- * total_bytes_transferred_ += ec ? 0 : n;
- *
- * // Retry operation immediately if interrupted by signal.
- * if (ec == asio::error::interrupted)
- * continue;
- *
- * // Check if we need to run the operation again.
- * if (ec == asio::error::would_block
- * || ec == asio::error::try_again)
- * {
- * // We have to wait for the socket to become ready again.
- * sock_.async_wait(tcp::socket::wait_write, *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_wait(tcp::socket::wait_write, 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 asio::error::would_block
- * (or the equivalent system error).
- *
- * @throws asio::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 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()(asio::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 = asio::error_code(n < 0 ? errno : 0,
- * asio::error::get_system_category());
- * total_bytes_transferred_ += ec ? 0 : n;
- *
- * // Retry operation immediately if interrupted by signal.
- * if (ec == asio::error::interrupted)
- * continue;
- *
- * // Check if we need to run the operation again.
- * if (ec == asio::error::would_block
- * || ec == asio::error::try_again)
- * {
- * // We have to wait for the socket to become ready again.
- * sock_.async_wait(tcp::socket::wait_write, *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_wait(tcp::socket::wait_write, op);
- * } @endcode
- */
- void native_non_blocking(bool mode)
- {
- asio::error_code ec;
- this->get_service().native_non_blocking(
- this->get_implementation(), mode, ec);
- 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 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 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()(asio::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 = asio::error_code(n < 0 ? errno : 0,
- * asio::error::get_system_category());
- * total_bytes_transferred_ += ec ? 0 : n;
- *
- * // Retry operation immediately if interrupted by signal.
- * if (ec == asio::error::interrupted)
- * continue;
- *
- * // Check if we need to run the operation again.
- * if (ec == asio::error::would_block
- * || ec == asio::error::try_again)
- * {
- * // We have to wait for the socket to become ready again.
- * sock_.async_wait(tcp::socket::wait_write, *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_wait(tcp::socket::wait_write, op);
- * } @endcode
- */
- ASIO_SYNC_OP_VOID native_non_blocking(
- bool mode, asio::error_code& ec)
- {
- this->get_service().native_non_blocking(
- this->get_implementation(), mode, ec);
- ASIO_SYNC_OP_VOID_RETURN(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 asio::system_error Thrown on failure.
- *
- * @par Example
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::endpoint endpoint = socket.local_endpoint();
- * @endcode
- */
- endpoint_type local_endpoint() const
- {
- asio::error_code ec;
- endpoint_type ep = this->get_service().local_endpoint(
- this->get_implementation(), ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::error_code ec;
- * asio::ip::tcp::endpoint endpoint = socket.local_endpoint(ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- endpoint_type local_endpoint(asio::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 asio::system_error Thrown on failure.
- *
- * @par Example
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::ip::tcp::endpoint endpoint = socket.remote_endpoint();
- * @endcode
- */
- endpoint_type remote_endpoint() const
- {
- asio::error_code ec;
- endpoint_type ep = this->get_service().remote_endpoint(
- this->get_implementation(), ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::error_code ec;
- * asio::ip::tcp::endpoint endpoint = socket.remote_endpoint(ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- endpoint_type remote_endpoint(asio::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 asio::system_error Thrown on failure.
- *
- * @par Example
- * Shutting down the send side of the socket:
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * socket.shutdown(asio::ip::tcp::socket::shutdown_send);
- * @endcode
- */
- void shutdown(shutdown_type what)
- {
- asio::error_code ec;
- this->get_service().shutdown(this->get_implementation(), what, ec);
- 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
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::error_code ec;
- * socket.shutdown(asio::ip::tcp::socket::shutdown_send, ec);
- * if (ec)
- * {
- * // An error occurred.
- * }
- * @endcode
- */
- ASIO_SYNC_OP_VOID shutdown(shutdown_type what,
- asio::error_code& ec)
- {
- this->get_service().shutdown(this->get_implementation(), what, ec);
- ASIO_SYNC_OP_VOID_RETURN(ec);
- }
-
- /// Wait for the socket to become ready to read, ready to write, or to have
- /// pending error conditions.
- /**
- * This function is used to perform a blocking wait for a socket to enter
- * a ready to read, write or error condition state.
- *
- * @param w Specifies the desired socket state.
- *
- * @par Example
- * Waiting for a socket to become readable.
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * socket.wait(asio::ip::tcp::socket::wait_read);
- * @endcode
- */
- void wait(wait_type w)
- {
- asio::error_code ec;
- this->get_service().wait(this->get_implementation(), w, ec);
- asio::detail::throw_error(ec, "wait");
- }
-
- /// Wait for the socket to become ready to read, ready to write, or to have
- /// pending error conditions.
- /**
- * This function is used to perform a blocking wait for a socket to enter
- * a ready to read, write or error condition state.
- *
- * @param w Specifies the desired socket state.
- *
- * @param ec Set to indicate what error occurred, if any.
- *
- * @par Example
- * Waiting for a socket to become readable.
- * @code
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * asio::error_code ec;
- * socket.wait(asio::ip::tcp::socket::wait_read, ec);
- * @endcode
- */
- ASIO_SYNC_OP_VOID wait(wait_type w, asio::error_code& ec)
- {
- this->get_service().wait(this->get_implementation(), w, ec);
- ASIO_SYNC_OP_VOID_RETURN(ec);
- }
-
- /// Asynchronously wait for the socket to become ready to read, ready to
- /// write, or to have pending error conditions.
- /**
- * This function is used to perform an asynchronous wait for a socket to enter
- * a ready to read, write or error condition state.
- *
- * @param w Specifies the desired socket state.
- *
- * @param handler The handler to be called when the wait operation completes.
- * Copies will be made of the handler as required. The function signature of
- * the handler must be:
- * @code void handler(
- * const asio::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
- * asio::io_context::post().
- *
- * @par Example
- * @code
- * void wait_handler(const asio::error_code& error)
- * {
- * if (!error)
- * {
- * // Wait succeeded.
- * }
- * }
- *
- * ...
- *
- * asio::ip::tcp::socket socket(io_context);
- * ...
- * socket.async_wait(asio::ip::tcp::socket::wait_read, wait_handler);
- * @endcode
- */
- template <typename WaitHandler>
- ASIO_INITFN_RESULT_TYPE(WaitHandler,
- void (asio::error_code))
- async_wait(wait_type w, ASIO_MOVE_ARG(WaitHandler) handler)
- {
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a WaitHandler.
- ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check;
-
-#if defined(ASIO_ENABLE_OLD_SERVICES)
- return this->get_service().async_wait(this->get_implementation(),
- w, ASIO_MOVE_CAST(WaitHandler)(handler));
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
- async_completion<WaitHandler,
- void (asio::error_code)> init(handler);
-
- this->get_service().async_wait(this->get_implementation(),
- w, init.completion_handler);
-
- return init.result.get();
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
- }
-
-protected:
- /// Protected destructor to prevent deletion through this type.
- /**
- * This function destroys the socket, cancelling any outstanding asynchronous
- * operations associated with the socket as if by calling @c cancel.
- */
- ~basic_socket()
- {
- }
-
-private:
- // Disallow copying and assignment.
- basic_socket(const basic_socket&) ASIO_DELETED;
- basic_socket& operator=(const basic_socket&) ASIO_DELETED;
-};
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if !defined(ASIO_ENABLE_OLD_SERVICES)
-# undef ASIO_SVC_T
-#endif // !defined(ASIO_ENABLE_OLD_SERVICES)
-
-#endif // ASIO_BASIC_SOCKET_HPP