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1 // Copyright (c) 2015 The Chromium 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 #include "chromeos/dbus/arc_bridge_client.h" | |
5 | |
6 #include "base/bind.h" | |
7 #include "base/logging.h" | |
8 #include "base/memory/weak_ptr.h" | |
9 #include "dbus/bus.h" | |
10 #include "dbus/message.h" | |
11 #include "dbus/object_path.h" | |
12 #include "dbus/object_proxy.h" | |
13 | |
14 namespace chromeos { | |
15 | |
16 namespace { | |
17 | |
18 // todo(denniskempin): Move constants to the chromiumos platform | |
19 // service_constants.h | |
20 const char kArcBridgeServicePath[] = "/org/chromium/arc"; | |
21 const char kArcBridgeServiceName[] = "org.chromium.arc"; | |
22 const char kArcBridgeServiceInterface[] = "org.chromium.arc"; | |
23 | |
24 const char kPingMethod[] = "Ping"; | |
25 | |
26 void OnVoidDBusMethod(const VoidDBusMethodCallback& callback, | |
27 dbus::Response* response) { | |
28 callback.Run(response ? DBUS_METHOD_CALL_SUCCESS : DBUS_METHOD_CALL_FAILURE); | |
29 } | |
30 | |
31 class ArcBridgeClientImpl : public ArcBridgeClient { | |
32 public: | |
33 ArcBridgeClientImpl() : proxy_(nullptr), weak_ptr_factory_(this) {} | |
34 | |
35 ~ArcBridgeClientImpl() override {} | |
36 | |
37 // Calls Ping method. |callback| is called after the method call succeeds. | |
38 void Ping(const VoidDBusMethodCallback& callback) override { | |
39 DCHECK(proxy_); | |
40 | |
41 dbus::MethodCall method_call(kArcBridgeServiceInterface, kPingMethod); | |
42 proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, | |
43 base::Bind(&OnVoidDBusMethod, callback)); | |
44 } | |
45 | |
46 protected: | |
47 void Init(dbus::Bus* bus) override { | |
48 proxy_ = bus->GetObjectProxy(kArcBridgeServiceName, | |
49 dbus::ObjectPath(kArcBridgeServicePath)); | |
50 DCHECK(proxy_); | |
51 } | |
52 | |
53 private: | |
54 dbus::ObjectProxy* proxy_; | |
55 | |
56 // Note: This should remain the last member so it'll be destroyed and | |
57 // invalidate its weak pointers before any other members are destroyed. | |
58 base::WeakPtrFactory<ArcBridgeClientImpl> weak_ptr_factory_; | |
59 | |
60 DISALLOW_COPY_AND_ASSIGN(ArcBridgeClientImpl); | |
61 }; | |
62 | |
63 } // namespace | |
64 | |
65 //////////////////////////////////////////////////////////////////////////////// | |
66 // ArcBridgeClient | |
67 | |
68 ArcBridgeClient::ArcBridgeClient() {} | |
69 | |
70 ArcBridgeClient::~ArcBridgeClient() {} | |
71 | |
72 // static | |
73 ArcBridgeClient* ArcBridgeClient::Create() { | |
74 return new ArcBridgeClientImpl(); | |
75 } | |
76 | |
77 } // namespace chromeos | |
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