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comparison: media/omx-plugin/include/ics/binder/IInterface.h
media/omx-plugin/include/ics/binder/IInterface.h
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| -1:000000000000 | 0:305cd27ff241 |
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| 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 */ | |
| 16 | |
| 17 // | |
| 18 #ifndef ANDROID_IINTERFACE_H | |
| 19 #define ANDROID_IINTERFACE_H | |
| 20 | |
| 21 #include <binder/Binder.h> | |
| 22 | |
| 23 namespace android { | |
| 24 | |
| 25 // ---------------------------------------------------------------------- | |
| 26 | |
| 27 class IInterface : public virtual RefBase | |
| 28 { | |
| 29 public: | |
| 30 IInterface(); | |
| 31 sp<IBinder> asBinder(); | |
| 32 sp<const IBinder> asBinder() const; | |
| 33 | |
| 34 protected: | |
| 35 virtual ~IInterface(); | |
| 36 virtual IBinder* onAsBinder() = 0; | |
| 37 }; | |
| 38 | |
| 39 // ---------------------------------------------------------------------- | |
| 40 | |
| 41 template<typename INTERFACE> | |
| 42 inline sp<INTERFACE> interface_cast(const sp<IBinder>& obj) | |
| 43 { | |
| 44 return INTERFACE::asInterface(obj); | |
| 45 } | |
| 46 | |
| 47 // ---------------------------------------------------------------------- | |
| 48 | |
| 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; | |
| 55 | |
| 56 protected: | |
| 57 virtual IBinder* onAsBinder(); | |
| 58 }; | |
| 59 | |
| 60 // ---------------------------------------------------------------------- | |
| 61 | |
| 62 template<typename INTERFACE> | |
| 63 class BpInterface : public INTERFACE, public BpRefBase | |
| 64 { | |
| 65 public: | |
| 66 BpInterface(const sp<IBinder>& remote); | |
| 67 | |
| 68 protected: | |
| 69 virtual IBinder* onAsBinder(); | |
| 70 }; | |
| 71 | |
| 72 // ---------------------------------------------------------------------- | |
| 73 | |
| 74 #define DECLARE_META_INTERFACE(INTERFACE) \ | |
| 75 static const android::String16 descriptor; \ | |
| 76 static android::sp<I##INTERFACE> asInterface( \ | |
| 77 const android::sp<android::IBinder>& obj); \ | |
| 78 virtual const android::String16& getInterfaceDescriptor() const; \ | |
| 79 I##INTERFACE(); \ | |
| 80 virtual ~I##INTERFACE(); \ | |
| 81 | |
| 82 | |
| 83 #define IMPLEMENT_META_INTERFACE(INTERFACE, NAME) \ | |
| 84 const android::String16 I##INTERFACE::descriptor(NAME); \ | |
| 85 const android::String16& \ | |
| 86 I##INTERFACE::getInterfaceDescriptor() const { \ | |
| 87 return I##INTERFACE::descriptor; \ | |
| 88 } \ | |
| 89 android::sp<I##INTERFACE> I##INTERFACE::asInterface( \ | |
| 90 const android::sp<android::IBinder>& obj) \ | |
| 91 { \ | |
| 92 android::sp<I##INTERFACE> intr; \ | |
| 93 if (obj != NULL) { \ | |
| 94 intr = static_cast<I##INTERFACE*>( \ | |
| 95 obj->queryLocalInterface( \ | |
| 96 I##INTERFACE::descriptor).get()); \ | |
| 97 if (intr == NULL) { \ | |
| 98 intr = new Bp##INTERFACE(obj); \ | |
| 99 } \ | |
| 100 } \ | |
| 101 return intr; \ | |
| 102 } \ | |
| 103 I##INTERFACE::I##INTERFACE() { } \ | |
| 104 I##INTERFACE::~I##INTERFACE() { } \ | |
| 105 | |
| 106 | |
| 107 #define CHECK_INTERFACE(interface, data, reply) \ | |
| 108 if (!data.checkInterface(this)) { return PERMISSION_DENIED; } \ | |
| 109 | |
| 110 | |
| 111 // ---------------------------------------------------------------------- | |
| 112 // No user-serviceable parts after this... | |
| 113 | |
| 114 template<typename INTERFACE> | |
| 115 inline sp<IInterface> BnInterface<INTERFACE>::queryLocalInterface( | |
| 116 const String16& _descriptor) | |
| 117 { | |
| 118 if (_descriptor == INTERFACE::descriptor) return this; | |
| 119 return NULL; | |
| 120 } | |
| 121 | |
| 122 template<typename INTERFACE> | |
| 123 inline const String16& BnInterface<INTERFACE>::getInterfaceDescriptor() const | |
| 124 { | |
| 125 return INTERFACE::getInterfaceDescriptor(); | |
| 126 } | |
| 127 | |
| 128 template<typename INTERFACE> | |
| 129 IBinder* BnInterface<INTERFACE>::onAsBinder() | |
| 130 { | |
| 131 return this; | |
| 132 } | |
| 133 | |
| 134 template<typename INTERFACE> | |
| 135 inline BpInterface<INTERFACE>::BpInterface(const sp<IBinder>& remote) | |
| 136 : BpRefBase(remote) | |
| 137 { | |
| 138 } | |
| 139 | |
| 140 template<typename INTERFACE> | |
| 141 inline IBinder* BpInterface<INTERFACE>::onAsBinder() | |
| 142 { | |
| 143 return remote(); | |
| 144 } | |
| 145 | |
| 146 // ---------------------------------------------------------------------- | |
| 147 | |
| 148 }; // namespace android | |
| 149 | |
| 150 #endif // ANDROID_IINTERFACE_H |
