media/omx-plugin/include/froyo/binder/IInterface.h@b8a032363ba2
media/omx-plugin/include/froyo/binder/IInterface.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 /*
2 * Copyright (C) 2005 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
17 //
18 #ifndef ANDROID_IINTERFACE_H
19 #define ANDROID_IINTERFACE_H
21 #include <binder/Binder.h>
23 namespace android {
25 // ----------------------------------------------------------------------
27 class IInterface : public virtual RefBase
28 {
29 public:
30 IInterface();
31 sp<IBinder> asBinder();
32 sp<const IBinder> asBinder() const;
34 protected:
35 virtual ~IInterface();
36 virtual IBinder* onAsBinder() = 0;
37 };
39 // ----------------------------------------------------------------------
41 template<typename INTERFACE>
42 inline sp<INTERFACE> interface_cast(const sp<IBinder>& obj)
43 {
44 return INTERFACE::asInterface(obj);
45 }
47 // ----------------------------------------------------------------------
49 template<typename INTERFACE>
50 class BnInterface : public INTERFACE, public BBinder
51 {
52 public:
53 virtual sp<IInterface> queryLocalInterface(const String16& _descriptor);
54 virtual const String16& getInterfaceDescriptor() const;
56 protected:
57 virtual IBinder* onAsBinder();
58 };
60 // ----------------------------------------------------------------------
62 template<typename INTERFACE>
63 class BpInterface : public INTERFACE, public BpRefBase
64 {
65 public:
66 BpInterface(const sp<IBinder>& remote);
68 protected:
69 virtual IBinder* onAsBinder();
70 };
72 // ----------------------------------------------------------------------
74 #define DECLARE_META_INTERFACE(INTERFACE) \
75 static const String16 descriptor; \
76 static sp<I##INTERFACE> asInterface(const sp<IBinder>& obj); \
77 virtual const String16& getInterfaceDescriptor() const; \
78 I##INTERFACE(); \
79 virtual ~I##INTERFACE(); \
82 #define IMPLEMENT_META_INTERFACE(INTERFACE, NAME) \
83 const String16 I##INTERFACE::descriptor(NAME); \
84 const String16& I##INTERFACE::getInterfaceDescriptor() const { \
85 return I##INTERFACE::descriptor; \
86 } \
87 sp<I##INTERFACE> I##INTERFACE::asInterface(const sp<IBinder>& obj) \
88 { \
89 sp<I##INTERFACE> intr; \
90 if (obj != NULL) { \
91 intr = static_cast<I##INTERFACE*>( \
92 obj->queryLocalInterface( \
93 I##INTERFACE::descriptor).get()); \
94 if (intr == NULL) { \
95 intr = new Bp##INTERFACE(obj); \
96 } \
97 } \
98 return intr; \
99 } \
100 I##INTERFACE::I##INTERFACE() { } \
101 I##INTERFACE::~I##INTERFACE() { } \
104 #define CHECK_INTERFACE(interface, data, reply) \
105 if (!data.checkInterface(this)) { return PERMISSION_DENIED; } \
108 // ----------------------------------------------------------------------
109 // No user-serviceable parts after this...
111 template<typename INTERFACE>
112 inline sp<IInterface> BnInterface<INTERFACE>::queryLocalInterface(
113 const String16& _descriptor)
114 {
115 if (_descriptor == INTERFACE::descriptor) return this;
116 return NULL;
117 }
119 template<typename INTERFACE>
120 inline const String16& BnInterface<INTERFACE>::getInterfaceDescriptor() const
121 {
122 return INTERFACE::getInterfaceDescriptor();
123 }
125 template<typename INTERFACE>
126 IBinder* BnInterface<INTERFACE>::onAsBinder()
127 {
128 return this;
129 }
131 template<typename INTERFACE>
132 inline BpInterface<INTERFACE>::BpInterface(const sp<IBinder>& remote)
133 : BpRefBase(remote)
134 {
135 }
137 template<typename INTERFACE>
138 inline IBinder* BpInterface<INTERFACE>::onAsBinder()
139 {
140 return remote();
141 }
143 // ----------------------------------------------------------------------
145 }; // namespace android
147 #endif // ANDROID_IINTERFACE_H
