1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/omx-plugin/include/froyo/binder/IInterface.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,147 @@
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 String16 descriptor; \
1.79 + static sp<I##INTERFACE> asInterface(const sp<IBinder>& obj); \
1.80 + virtual const String16& getInterfaceDescriptor() const; \
1.81 + I##INTERFACE(); \
1.82 + virtual ~I##INTERFACE(); \
1.83 +
1.84 +
1.85 +#define IMPLEMENT_META_INTERFACE(INTERFACE, NAME) \
1.86 + const String16 I##INTERFACE::descriptor(NAME); \
1.87 + const String16& I##INTERFACE::getInterfaceDescriptor() const { \
1.88 + return I##INTERFACE::descriptor; \
1.89 + } \
1.90 + sp<I##INTERFACE> I##INTERFACE::asInterface(const sp<IBinder>& obj) \
1.91 + { \
1.92 + sp<I##INTERFACE> intr; \
1.93 + if (obj != NULL) { \
1.94 + intr = static_cast<I##INTERFACE*>( \
1.95 + obj->queryLocalInterface( \
1.96 + I##INTERFACE::descriptor).get()); \
1.97 + if (intr == NULL) { \
1.98 + intr = new Bp##INTERFACE(obj); \
1.99 + } \
1.100 + } \
1.101 + return intr; \
1.102 + } \
1.103 + I##INTERFACE::I##INTERFACE() { } \
1.104 + I##INTERFACE::~I##INTERFACE() { } \
1.105 +
1.106 +
1.107 +#define CHECK_INTERFACE(interface, data, reply) \
1.108 + if (!data.checkInterface(this)) { return PERMISSION_DENIED; } \
1.109 +
1.110 +
1.111 +// ----------------------------------------------------------------------
1.112 +// No user-serviceable parts after this...
1.113 +
1.114 +template<typename INTERFACE>
1.115 +inline sp<IInterface> BnInterface<INTERFACE>::queryLocalInterface(
1.116 + const String16& _descriptor)
1.117 +{
1.118 + if (_descriptor == INTERFACE::descriptor) return this;
1.119 + return NULL;
1.120 +}
1.121 +
1.122 +template<typename INTERFACE>
1.123 +inline const String16& BnInterface<INTERFACE>::getInterfaceDescriptor() const
1.124 +{
1.125 + return INTERFACE::getInterfaceDescriptor();
1.126 +}
1.127 +
1.128 +template<typename INTERFACE>
1.129 +IBinder* BnInterface<INTERFACE>::onAsBinder()
1.130 +{
1.131 + return this;
1.132 +}
1.133 +
1.134 +template<typename INTERFACE>
1.135 +inline BpInterface<INTERFACE>::BpInterface(const sp<IBinder>& remote)
1.136 + : BpRefBase(remote)
1.137 +{
1.138 +}
1.139 +
1.140 +template<typename INTERFACE>
1.141 +inline IBinder* BpInterface<INTERFACE>::onAsBinder()
1.142 +{
1.143 + return remote();
1.144 +}
1.145 +
1.146 +// ----------------------------------------------------------------------
1.147 +
1.148 +}; // namespace android
1.149 +
1.150 +#endif // ANDROID_IINTERFACE_H
