| /* |
| * Copyright (C) 2009 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_ANDROID_NATIVES_H |
| #define ANDROID_ANDROID_NATIVES_H |
| |
| #include <sys/types.h> |
| |
| #include <nativebase/nativebase.h> |
| |
| |
| /*****************************************************************************/ |
| |
| #ifdef __cplusplus |
| |
| #include <utils/RefBase.h> |
| |
| namespace android { |
| |
| /* |
| * This helper class turns a ANativeXXX object type into a C++ |
| * reference-counted object; with proper type conversions. |
| */ |
| template <typename NATIVE_TYPE, typename TYPE, typename REF, |
| typename NATIVE_BASE = android_native_base_t> |
| class ANativeObjectBase : public NATIVE_TYPE, public REF |
| { |
| public: |
| // Disambiguate between the incStrong in REF and NATIVE_TYPE |
| void incStrong(const void* id) const { |
| REF::incStrong(id); |
| } |
| void decStrong(const void* id) const { |
| REF::decStrong(id); |
| } |
| |
| protected: |
| typedef ANativeObjectBase<NATIVE_TYPE, TYPE, REF, NATIVE_BASE> BASE; |
| ANativeObjectBase() : NATIVE_TYPE(), REF() { |
| NATIVE_TYPE::common.incRef = incRef; |
| NATIVE_TYPE::common.decRef = decRef; |
| } |
| static inline TYPE* getSelf(NATIVE_TYPE* self) { |
| return static_cast<TYPE*>(self); |
| } |
| static inline TYPE const* getSelf(NATIVE_TYPE const* self) { |
| return static_cast<TYPE const *>(self); |
| } |
| static inline TYPE* getSelf(NATIVE_BASE* base) { |
| return getSelf(reinterpret_cast<NATIVE_TYPE*>(base)); |
| } |
| static inline TYPE const * getSelf(NATIVE_BASE const* base) { |
| return getSelf(reinterpret_cast<NATIVE_TYPE const*>(base)); |
| } |
| static void incRef(NATIVE_BASE* base) { |
| ANativeObjectBase* self = getSelf(base); |
| self->incStrong(self); |
| } |
| static void decRef(NATIVE_BASE* base) { |
| ANativeObjectBase* self = getSelf(base); |
| self->decStrong(self); |
| } |
| }; |
| |
| } // namespace android |
| #endif // __cplusplus |
| |
| /*****************************************************************************/ |
| |
| #endif /* ANDROID_ANDROID_NATIVES_H */ |