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+//
+// ip/tcp.hpp
+// ~~~~~~~~~~
+//
+// Copyright (c) 2003-2024 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_IP_TCP_HPP
+#define ASIO_IP_TCP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_socket_acceptor.hpp"
+#include "asio/basic_socket_iostream.hpp"
+#include "asio/basic_stream_socket.hpp"
+#include "asio/detail/socket_option.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/ip/basic_endpoint.hpp"
+#include "asio/ip/basic_resolver.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Encapsulates the flags needed for TCP.
+/**
+ * The asio::ip::tcp class contains flags necessary for TCP sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol, InternetProtocol.
+ */
+class tcp
+{
+public:
+ /// The type of a TCP endpoint.
+ typedef basic_endpoint<tcp> endpoint;
+
+ /// Construct to represent the IPv4 TCP protocol.
+ static tcp v4() noexcept
+ {
+ return tcp(ASIO_OS_DEF(AF_INET));
+ }
+
+ /// Construct to represent the IPv6 TCP protocol.
+ static tcp v6() noexcept
+ {
+ return tcp(ASIO_OS_DEF(AF_INET6));
+ }
+
+ /// Obtain an identifier for the type of the protocol.
+ int type() const noexcept
+ {
+ return ASIO_OS_DEF(SOCK_STREAM);
+ }
+
+ /// Obtain an identifier for the protocol.
+ int protocol() const noexcept
+ {
+ return ASIO_OS_DEF(IPPROTO_TCP);
+ }
+
+ /// Obtain an identifier for the protocol family.
+ int family() const noexcept
+ {
+ return family_;
+ }
+
+ /// The TCP socket type.
+ typedef basic_stream_socket<tcp> socket;
+
+ /// The TCP acceptor type.
+ typedef basic_socket_acceptor<tcp> acceptor;
+
+ /// The TCP resolver type.
+ typedef basic_resolver<tcp> resolver;
+
+#if !defined(ASIO_NO_IOSTREAM)
+ /// The TCP iostream type.
+ typedef basic_socket_iostream<tcp> iostream;
+#endif // !defined(ASIO_NO_IOSTREAM)
+
+ /// Socket option for disabling the Nagle algorithm.
+ /**
+ * Implements the IPPROTO_TCP/TCP_NODELAY socket option.
+ *
+ * @par Examples
+ * Setting the option:
+ * @code
+ * asio::ip::tcp::socket socket(my_context);
+ * ...
+ * asio::ip::tcp::no_delay option(true);
+ * socket.set_option(option);
+ * @endcode
+ *
+ * @par
+ * Getting the current option value:
+ * @code
+ * asio::ip::tcp::socket socket(my_context);
+ * ...
+ * asio::ip::tcp::no_delay option;
+ * socket.get_option(option);
+ * bool is_set = option.value();
+ * @endcode
+ *
+ * @par Concepts:
+ * Socket_Option, Boolean_Socket_Option.
+ */
+#if defined(GENERATING_DOCUMENTATION)
+ typedef implementation_defined no_delay;
+#else
+ typedef asio::detail::socket_option::boolean<
+ ASIO_OS_DEF(IPPROTO_TCP), ASIO_OS_DEF(TCP_NODELAY)> no_delay;
+#endif
+
+ /// Compare two protocols for equality.
+ friend bool operator==(const tcp& p1, const tcp& p2)
+ {
+ return p1.family_ == p2.family_;
+ }
+
+ /// Compare two protocols for inequality.
+ friend bool operator!=(const tcp& p1, const tcp& p2)
+ {
+ return p1.family_ != p2.family_;
+ }
+
+private:
+ // Construct with a specific family.
+ explicit tcp(int protocol_family) noexcept
+ : family_(protocol_family)
+ {
+ }
+
+ int family_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_TCP_HPP