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include/asio/local/stream_protocol.hpp

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+//
+// local/stream_protocol.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2025 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_STREAM_PROTOCOL_HPP
+#define ASIO_LOCAL_STREAM_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_socket_acceptor.hpp"
+#include "asio/basic_socket_iostream.hpp"
+#include "asio/basic_stream_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 stream-oriented UNIX sockets.
+/**
+ * The asio::local::stream_protocol class contains flags necessary for
+ * stream-oriented UNIX domain sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol.
+ */
+class stream_protocol
+{
+public:
+  /// Obtain an identifier for the type of the protocol.
+  int type() const noexcept
+  {
+    return SOCK_STREAM;
+  }
+
+  /// 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<stream_protocol> endpoint;
+
+  /// The UNIX domain socket type.
+  typedef basic_stream_socket<stream_protocol> socket;
+
+  /// The UNIX domain acceptor type.
+  typedef basic_socket_acceptor<stream_protocol> acceptor;
+
+#if !defined(ASIO_NO_IOSTREAM)
+  /// The UNIX domain iostream type.
+  typedef basic_socket_iostream<stream_protocol> iostream;
+#endif // !defined(ASIO_NO_IOSTREAM)
+};
+
+} // namespace local
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_LOCAL_SOCKETS)
+       //   || defined(GENERATING_DOCUMENTATION)
+
+#endif // ASIO_LOCAL_STREAM_PROTOCOL_HPP