/* * Copyright 2007-2021 CM4all GmbH * All rights reserved. * * author: Max Kellermann <mk@cm4all.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "Poll.hxx" #include "event/CoarseTimerEvent.hxx" #include <avahi-client/client.h> #include <forward_list> class EventLoop; namespace Avahi { class ErrorHandler; class ConnectionListener; class Client final { ErrorHandler &error_handler; CoarseTimerEvent reconnect_timer; Poll poll; AvahiClient *client = nullptr; std::forward_list<ConnectionListener *> listeners; public: Client(EventLoop &event_loop, ErrorHandler &_error_handler) noexcept; ~Client() noexcept; Client(const Client &) = delete; Client &operator=(const Client &) = delete; EventLoop &GetEventLoop() const noexcept { return poll.GetEventLoop(); } void Close() noexcept; AvahiClient *GetClient() noexcept { return client; } void AddListener(ConnectionListener &listener) noexcept { listeners.push_front(&listener); } void RemoveListener(ConnectionListener &listener) noexcept { listeners.remove(&listener); } private: void ClientCallback(AvahiClient *c, AvahiClientState state) noexcept; static void ClientCallback(AvahiClient *c, AvahiClientState state, void *userdata) noexcept; void OnReconnectTimer() noexcept; }; } // namespace Avahi