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+// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef UNIX_DOMAIN_SOCKET_ACCEPTOR_H
+#define UNIX_DOMAIN_SOCKET_ACCEPTOR_H
+
+#ifndef BOOST_ASIO_HPP
+#error "asio.hpp must be included before including this, see asiolink.h as to why"
+#endif
+
+#include <asiolink/io_acceptor.h>
+#include <asiolink/unix_domain_socket.h>
+#include <functional>
+
+namespace isc {
+namespace asiolink {
+
+/// @brief Implements acceptor service for @ref UnixDomainSocket.
+///
+/// This class is used to accept new incoming connections over unix domain
+/// sockets.
+class UnixDomainSocketAcceptor : public IOAcceptor<boost::asio::local::stream_protocol,
+ std::function<void(const boost::system::error_code&)> > {
+public:
+
+ /// @brief Callback type used in call to @ref UnixDomainSocketAcceptor::asyncAccept.
+ typedef std::function<void(const boost::system::error_code&)> AcceptHandler;
+
+ /// @brief Constructor.
+ ///
+ /// @param io_service Reference to the IO service.
+ explicit UnixDomainSocketAcceptor(IOService& io_service)
+ : IOAcceptor<boost::asio::local::stream_protocol,
+ std::function<void(const boost::system::error_code&)> >(io_service) {
+ }
+
+ /// @brief Returns the transport protocol of the socket.
+ ///
+ /// @return AF_LOCAL.
+ virtual int getProtocol() const final {
+ return (AF_LOCAL);
+ }
+
+ /// @brief Asynchronously accept new connection.
+ ///
+ /// This method accepts new connection into the specified socket. When the
+ /// new connection arrives or an error occurs the specified callback function
+ /// is invoked.
+ ///
+ /// @param socket Socket into which connection should be accepted.
+ /// @param callback Callback function to be invoked when the new connection
+ /// arrives.
+ /// @tparam SocketType
+ void asyncAccept(const UnixDomainSocket& socket, const AcceptHandler& callback) {
+ asyncAcceptInternal(socket, callback);
+ }
+};
+
+} // end of namespace isc::asiolink
+} // end of namespace isc
+
+#endif // UNIX_DOMAIN_SOCKET_ACCEPTOR_H