diff -r 000000000000 -r 6474c204b198 media/omx-plugin/include/ics/binder/IInterface.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/media/omx-plugin/include/ics/binder/IInterface.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,150 @@ +/* + * Copyright (C) 2005 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// +#ifndef ANDROID_IINTERFACE_H +#define ANDROID_IINTERFACE_H + +#include + +namespace android { + +// ---------------------------------------------------------------------- + +class IInterface : public virtual RefBase +{ +public: + IInterface(); + sp asBinder(); + sp asBinder() const; + +protected: + virtual ~IInterface(); + virtual IBinder* onAsBinder() = 0; +}; + +// ---------------------------------------------------------------------- + +template +inline sp interface_cast(const sp& obj) +{ + return INTERFACE::asInterface(obj); +} + +// ---------------------------------------------------------------------- + +template +class BnInterface : public INTERFACE, public BBinder +{ +public: + virtual sp queryLocalInterface(const String16& _descriptor); + virtual const String16& getInterfaceDescriptor() const; + +protected: + virtual IBinder* onAsBinder(); +}; + +// ---------------------------------------------------------------------- + +template +class BpInterface : public INTERFACE, public BpRefBase +{ +public: + BpInterface(const sp& remote); + +protected: + virtual IBinder* onAsBinder(); +}; + +// ---------------------------------------------------------------------- + +#define DECLARE_META_INTERFACE(INTERFACE) \ + static const android::String16 descriptor; \ + static android::sp asInterface( \ + const android::sp& obj); \ + virtual const android::String16& getInterfaceDescriptor() const; \ + I##INTERFACE(); \ + virtual ~I##INTERFACE(); \ + + +#define IMPLEMENT_META_INTERFACE(INTERFACE, NAME) \ + const android::String16 I##INTERFACE::descriptor(NAME); \ + const android::String16& \ + I##INTERFACE::getInterfaceDescriptor() const { \ + return I##INTERFACE::descriptor; \ + } \ + android::sp I##INTERFACE::asInterface( \ + const android::sp& obj) \ + { \ + android::sp intr; \ + if (obj != NULL) { \ + intr = static_cast( \ + obj->queryLocalInterface( \ + I##INTERFACE::descriptor).get()); \ + if (intr == NULL) { \ + intr = new Bp##INTERFACE(obj); \ + } \ + } \ + return intr; \ + } \ + I##INTERFACE::I##INTERFACE() { } \ + I##INTERFACE::~I##INTERFACE() { } \ + + +#define CHECK_INTERFACE(interface, data, reply) \ + if (!data.checkInterface(this)) { return PERMISSION_DENIED; } \ + + +// ---------------------------------------------------------------------- +// No user-serviceable parts after this... + +template +inline sp BnInterface::queryLocalInterface( + const String16& _descriptor) +{ + if (_descriptor == INTERFACE::descriptor) return this; + return NULL; +} + +template +inline const String16& BnInterface::getInterfaceDescriptor() const +{ + return INTERFACE::getInterfaceDescriptor(); +} + +template +IBinder* BnInterface::onAsBinder() +{ + return this; +} + +template +inline BpInterface::BpInterface(const sp& remote) + : BpRefBase(remote) +{ +} + +template +inline IBinder* BpInterface::onAsBinder() +{ + return remote(); +} + +// ---------------------------------------------------------------------- + +}; // namespace android + +#endif // ANDROID_IINTERFACE_H