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+//
+// local/datagram_protocol.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_LOCAL_DATAGRAM_PROTOCOL_HPP
+#define ASIO_LOCAL_DATAGRAM_PROTOCOL_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_LOCAL_SOCKETS) \
+ || defined(GENERATING_DOCUMENTATION)
+
+#include "asio/basic_datagram_socket.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/local/basic_endpoint.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace local {
+
+/// Encapsulates the flags needed for datagram-oriented UNIX sockets.
+/**
+ * The asio::local::datagram_protocol class contains flags necessary for
+ * datagram-oriented UNIX domain sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol.
+ */
+class datagram_protocol
+{
+public:
+ /// Obtain an identifier for the type of the protocol.
+ int type() const noexcept
+ {
+ return SOCK_DGRAM;
+ }
+
+ /// Obtain an identifier for the protocol.
+ int protocol() const noexcept
+ {
+ return 0;
+ }
+
+ /// Obtain an identifier for the protocol family.
+ int family() const noexcept
+ {
+ return AF_UNIX;
+ }
+
+ /// The type of a UNIX domain endpoint.
+ typedef basic_endpoint<datagram_protocol> endpoint;
+
+ /// The UNIX domain socket type.
+ typedef basic_datagram_socket<datagram_protocol> socket;
+};
+
+} // namespace local
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_LOCAL_SOCKETS)
+ // || defined(GENERATING_DOCUMENTATION)
+
+#endif // ASIO_LOCAL_DATAGRAM_PROTOCOL_HPP