1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/omx-plugin/include/ics/binder/IInterface.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,150 @@
1.4 +/*
1.5 + * Copyright (C) 2005 The Android Open Source Project
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +//
1.21 +#ifndef ANDROID_IINTERFACE_H
1.22 +#define ANDROID_IINTERFACE_H
1.23 +
1.24 +#include <binder/Binder.h>
1.25 +
1.26 +namespace android {
1.27 +
1.28 +// ----------------------------------------------------------------------
1.29 +
1.30 +class IInterface : public virtual RefBase
1.31 +{
1.32 +public:
1.33 + IInterface();
1.34 + sp<IBinder> asBinder();
1.35 + sp<const IBinder> asBinder() const;
1.36 +
1.37 +protected:
1.38 + virtual ~IInterface();
1.39 + virtual IBinder* onAsBinder() = 0;
1.40 +};
1.41 +
1.42 +// ----------------------------------------------------------------------
1.43 +
1.44 +template<typename INTERFACE>
1.45 +inline sp<INTERFACE> interface_cast(const sp<IBinder>& obj)
1.46 +{
1.47 + return INTERFACE::asInterface(obj);
1.48 +}
1.49 +
1.50 +// ----------------------------------------------------------------------
1.51 +
1.52 +template<typename INTERFACE>
1.53 +class BnInterface : public INTERFACE, public BBinder
1.54 +{
1.55 +public:
1.56 + virtual sp<IInterface> queryLocalInterface(const String16& _descriptor);
1.57 + virtual const String16& getInterfaceDescriptor() const;
1.58 +
1.59 +protected:
1.60 + virtual IBinder* onAsBinder();
1.61 +};
1.62 +
1.63 +// ----------------------------------------------------------------------
1.64 +
1.65 +template<typename INTERFACE>
1.66 +class BpInterface : public INTERFACE, public BpRefBase
1.67 +{
1.68 +public:
1.69 + BpInterface(const sp<IBinder>& remote);
1.70 +
1.71 +protected:
1.72 + virtual IBinder* onAsBinder();
1.73 +};
1.74 +
1.75 +// ----------------------------------------------------------------------
1.76 +
1.77 +#define DECLARE_META_INTERFACE(INTERFACE) \
1.78 + static const android::String16 descriptor; \
1.79 + static android::sp<I##INTERFACE> asInterface( \
1.80 + const android::sp<android::IBinder>& obj); \
1.81 + virtual const android::String16& getInterfaceDescriptor() const; \
1.82 + I##INTERFACE(); \
1.83 + virtual ~I##INTERFACE(); \
1.84 +
1.85 +
1.86 +#define IMPLEMENT_META_INTERFACE(INTERFACE, NAME) \
1.87 + const android::String16 I##INTERFACE::descriptor(NAME); \
1.88 + const android::String16& \
1.89 + I##INTERFACE::getInterfaceDescriptor() const { \
1.90 + return I##INTERFACE::descriptor; \
1.91 + } \
1.92 + android::sp<I##INTERFACE> I##INTERFACE::asInterface( \
1.93 + const android::sp<android::IBinder>& obj) \
1.94 + { \
1.95 + android::sp<I##INTERFACE> intr; \
1.96 + if (obj != NULL) { \
1.97 + intr = static_cast<I##INTERFACE*>( \
1.98 + obj->queryLocalInterface( \
1.99 + I##INTERFACE::descriptor).get()); \
1.100 + if (intr == NULL) { \
1.101 + intr = new Bp##INTERFACE(obj); \
1.102 + } \
1.103 + } \
1.104 + return intr; \
1.105 + } \
1.106 + I##INTERFACE::I##INTERFACE() { } \
1.107 + I##INTERFACE::~I##INTERFACE() { } \
1.108 +
1.109 +
1.110 +#define CHECK_INTERFACE(interface, data, reply) \
1.111 + if (!data.checkInterface(this)) { return PERMISSION_DENIED; } \
1.112 +
1.113 +
1.114 +// ----------------------------------------------------------------------
1.115 +// No user-serviceable parts after this...
1.116 +
1.117 +template<typename INTERFACE>
1.118 +inline sp<IInterface> BnInterface<INTERFACE>::queryLocalInterface(
1.119 + const String16& _descriptor)
1.120 +{
1.121 + if (_descriptor == INTERFACE::descriptor) return this;
1.122 + return NULL;
1.123 +}
1.124 +
1.125 +template<typename INTERFACE>
1.126 +inline const String16& BnInterface<INTERFACE>::getInterfaceDescriptor() const
1.127 +{
1.128 + return INTERFACE::getInterfaceDescriptor();
1.129 +}
1.130 +
1.131 +template<typename INTERFACE>
1.132 +IBinder* BnInterface<INTERFACE>::onAsBinder()
1.133 +{
1.134 + return this;
1.135 +}
1.136 +
1.137 +template<typename INTERFACE>
1.138 +inline BpInterface<INTERFACE>::BpInterface(const sp<IBinder>& remote)
1.139 + : BpRefBase(remote)
1.140 +{
1.141 +}
1.142 +
1.143 +template<typename INTERFACE>
1.144 +inline IBinder* BpInterface<INTERFACE>::onAsBinder()
1.145 +{
1.146 + return remote();
1.147 +}
1.148 +
1.149 +// ----------------------------------------------------------------------
1.150 +
1.151 +}; // namespace android
1.152 +
1.153 +#endif // ANDROID_IINTERFACE_H
