1 /*
2  * Copyright 2018-2021 Max Kellermann <max.kellermann@gmail.com>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * - Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *
11  * - Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the
14  * distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
20  * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
27  * OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef ODBUS_GLUE_HXX
31 #define ODBUS_GLUE_HXX
32 
33 #include "Watch.hxx"
34 
35 class EventLoop;
36 
37 namespace ODBus {
38 
39 /**
40  * A class which manages the D-Bus client connection.
41  */
42 class Glue final : ODBus::WatchManagerObserver {
43 	WatchManager watch;
44 
45 public:
Glue(EventLoop & event_loop)46 	explicit Glue(EventLoop &event_loop)
47 		:watch(event_loop, *this) {
48 		ConnectIndirect();
49 	}
50 
~Glue()51 	~Glue() noexcept {
52 		DisconnectIndirect();
53 	}
54 
GetEventLoop() const55 	auto &GetEventLoop() const noexcept {
56 		return watch.GetEventLoop();
57 	}
58 
GetConnection()59 	Connection &GetConnection() noexcept {
60 		return watch.GetConnection();
61 	}
62 
63 private:
64 	void ConnectIndirect();
65 	void DisconnectIndirect() noexcept;
66 
67 	void Connect();
68 	void Disconnect() noexcept;
69 
70 	/* virtual methods from class ODBus::WatchManagerObserver */
71 	void OnDBusClosed() noexcept override;
72 };
73 
74 }
75 
76 #endif
77