292 lines
7.6 KiB
C++
292 lines
7.6 KiB
C++
//
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// ip/basic_endpoint.hpp
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// ~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_IP_BASIC_ENDPOINT_HPP
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#define ASIO_IP_BASIC_ENDPOINT_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/config.hpp"
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#include "asio/detail/cstdint.hpp"
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#include "asio/ip/address.hpp"
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#include "asio/ip/detail/endpoint.hpp"
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#if defined(ASIO_HAS_STD_HASH)
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# include <functional>
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#endif // defined(ASIO_HAS_STD_HASH)
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#if !defined(ASIO_NO_IOSTREAM)
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# include <iosfwd>
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#endif // !defined(ASIO_NO_IOSTREAM)
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace ip {
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/// Type used for storing port numbers.
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typedef uint_least16_t port_type;
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/// Describes an endpoint for a version-independent IP socket.
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/**
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* The asio::ip::basic_endpoint class template describes an endpoint that
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* may be associated with a particular socket.
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*
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* @par Thread Safety
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* @e Distinct @e objects: Safe.@n
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* @e Shared @e objects: Unsafe.
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*
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* @par Concepts:
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* Endpoint.
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*/
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template <typename InternetProtocol>
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class basic_endpoint
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{
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public:
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/// The protocol type associated with the endpoint.
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typedef InternetProtocol protocol_type;
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/// The type of the endpoint structure. This type is dependent on the
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/// underlying implementation of the socket layer.
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#if defined(GENERATING_DOCUMENTATION)
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typedef implementation_defined data_type;
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#else
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typedef asio::detail::socket_addr_type data_type;
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#endif
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/// Default constructor.
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basic_endpoint() ASIO_NOEXCEPT
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: impl_()
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{
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}
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/// Construct an endpoint using a port number, specified in the host's byte
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/// order. The IP address will be the any address (i.e. INADDR_ANY or
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/// in6addr_any). This constructor would typically be used for accepting new
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/// connections.
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/**
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* @par Examples
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* To initialise an IPv4 TCP endpoint for port 1234, use:
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* @code
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* asio::ip::tcp::endpoint ep(asio::ip::tcp::v4(), 1234);
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* @endcode
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*
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* To specify an IPv6 UDP endpoint for port 9876, use:
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* @code
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* asio::ip::udp::endpoint ep(asio::ip::udp::v6(), 9876);
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* @endcode
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*/
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basic_endpoint(const InternetProtocol& internet_protocol,
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port_type port_num) ASIO_NOEXCEPT
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: impl_(internet_protocol.family(), port_num)
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{
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}
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/// Construct an endpoint using a port number and an IP address. This
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/// constructor may be used for accepting connections on a specific interface
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/// or for making a connection to a remote endpoint.
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basic_endpoint(const asio::ip::address& addr,
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port_type port_num) ASIO_NOEXCEPT
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: impl_(addr, port_num)
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{
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}
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/// Copy constructor.
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basic_endpoint(const basic_endpoint& other) ASIO_NOEXCEPT
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: impl_(other.impl_)
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{
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}
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#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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/// Move constructor.
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basic_endpoint(basic_endpoint&& other) ASIO_NOEXCEPT
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: impl_(other.impl_)
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{
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}
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#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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/// Assign from another endpoint.
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basic_endpoint& operator=(const basic_endpoint& other) ASIO_NOEXCEPT
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{
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impl_ = other.impl_;
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return *this;
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}
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#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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/// Move-assign from another endpoint.
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basic_endpoint& operator=(basic_endpoint&& other) ASIO_NOEXCEPT
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{
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impl_ = other.impl_;
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return *this;
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}
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#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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/// The protocol associated with the endpoint.
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protocol_type protocol() const ASIO_NOEXCEPT
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{
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if (impl_.is_v4())
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return InternetProtocol::v4();
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return InternetProtocol::v6();
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}
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/// Get the underlying endpoint in the native type.
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data_type* data() ASIO_NOEXCEPT
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{
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return impl_.data();
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}
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/// Get the underlying endpoint in the native type.
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const data_type* data() const ASIO_NOEXCEPT
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{
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return impl_.data();
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}
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/// Get the underlying size of the endpoint in the native type.
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std::size_t size() const ASIO_NOEXCEPT
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{
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return impl_.size();
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}
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/// Set the underlying size of the endpoint in the native type.
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void resize(std::size_t new_size)
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{
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impl_.resize(new_size);
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}
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/// Get the capacity of the endpoint in the native type.
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std::size_t capacity() const ASIO_NOEXCEPT
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{
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return impl_.capacity();
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}
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/// Get the port associated with the endpoint. The port number is always in
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/// the host's byte order.
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port_type port() const ASIO_NOEXCEPT
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{
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return impl_.port();
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}
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/// Set the port associated with the endpoint. The port number is always in
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/// the host's byte order.
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void port(port_type port_num) ASIO_NOEXCEPT
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{
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impl_.port(port_num);
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}
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/// Get the IP address associated with the endpoint.
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asio::ip::address address() const ASIO_NOEXCEPT
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{
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return impl_.address();
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}
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/// Set the IP address associated with the endpoint.
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void address(const asio::ip::address& addr) ASIO_NOEXCEPT
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{
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impl_.address(addr);
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}
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/// Compare two endpoints for equality.
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friend bool operator==(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return e1.impl_ == e2.impl_;
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}
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/// Compare two endpoints for inequality.
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friend bool operator!=(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return !(e1 == e2);
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}
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/// Compare endpoints for ordering.
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friend bool operator<(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return e1.impl_ < e2.impl_;
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}
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/// Compare endpoints for ordering.
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friend bool operator>(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return e2.impl_ < e1.impl_;
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}
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/// Compare endpoints for ordering.
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friend bool operator<=(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return !(e2 < e1);
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}
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/// Compare endpoints for ordering.
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friend bool operator>=(const basic_endpoint<InternetProtocol>& e1,
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const basic_endpoint<InternetProtocol>& e2) ASIO_NOEXCEPT
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{
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return !(e1 < e2);
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}
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private:
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// The underlying IP endpoint.
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asio::ip::detail::endpoint impl_;
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};
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#if !defined(ASIO_NO_IOSTREAM)
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/// Output an endpoint as a string.
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/**
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* Used to output a human-readable string for a specified endpoint.
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*
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* @param os The output stream to which the string will be written.
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*
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* @param endpoint The endpoint to be written.
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*
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* @return The output stream.
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*
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* @relates asio::ip::basic_endpoint
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*/
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template <typename Elem, typename Traits, typename InternetProtocol>
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std::basic_ostream<Elem, Traits>& operator<<(
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std::basic_ostream<Elem, Traits>& os,
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const basic_endpoint<InternetProtocol>& endpoint);
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#endif // !defined(ASIO_NO_IOSTREAM)
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} // namespace ip
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} // namespace asio
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#if defined(ASIO_HAS_STD_HASH)
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namespace std {
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template <typename InternetProtocol>
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struct hash<asio::ip::basic_endpoint<InternetProtocol> >
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{
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std::size_t operator()(
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const asio::ip::basic_endpoint<InternetProtocol>& ep)
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const ASIO_NOEXCEPT
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{
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std::size_t hash1 = std::hash<asio::ip::address>()(ep.address());
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std::size_t hash2 = std::hash<unsigned short>()(ep.port());
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return hash1 ^ (hash2 + 0x9e3779b9 + (hash1 << 6) + (hash1 >> 2));
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}
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};
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} // namespace std
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#endif // defined(ASIO_HAS_STD_HASH)
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#include "asio/detail/pop_options.hpp"
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#include "asio/ip/impl/basic_endpoint.hpp"
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#endif // ASIO_IP_BASIC_ENDPOINT_HPP
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