1 // Copyright 2016 The Chromium OS Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef LIBBRILLO_BRILLO_DBUS_DBUS_CONNECTION_H_
6 #define LIBBRILLO_BRILLO_DBUS_DBUS_CONNECTION_H_
7 
8 #include <base/memory/ref_counted.h>
9 #include <base/time/time.h>
10 #include <dbus/bus.h>
11 
12 #include <brillo/brillo_export.h>
13 
14 namespace brillo {
15 
16 // DBusConnection adds D-Bus support to Daemon.
17 class BRILLO_EXPORT DBusConnection final {
18  public:
19   DBusConnection();
20   ~DBusConnection();
21 
22   // Instantiates dbus::Bus and establishes a D-Bus connection. Returns a
23   // reference to the connected bus, or an empty pointer in case of error.
24   scoped_refptr<dbus::Bus> Connect();
25 
26   // Instantiates dbus::Bus and tries to establish a D-Bus connection for up to
27   // |timeout|. If the connection can't be established after the timeout, fails
28   // returning an empty pointer.
29   scoped_refptr<dbus::Bus> ConnectWithTimeout(base::TimeDelta timeout);
30 
31  private:
32   scoped_refptr<dbus::Bus> bus_;
33 
34  private:
35   DISALLOW_COPY_AND_ASSIGN(DBusConnection);
36 };
37 
38 }  // namespace brillo
39 
40 #endif  // LIBBRILLO_BRILLO_DAEMONS_DBUS_DAEMON_H_
41