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84 lines
2.5 KiB
84 lines
2.5 KiB
7 months ago
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_ANDROID_NATIVES_H
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#define ANDROID_ANDROID_NATIVES_H
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#include <sys/types.h>
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#include <nativebase/nativebase.h>
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/*****************************************************************************/
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#ifdef __cplusplus
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#include <utils/RefBase.h>
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namespace android {
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/*
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* This helper class turns a ANativeXXX object type into a C++
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* reference-counted object; with proper type conversions.
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*/
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template <typename NATIVE_TYPE, typename TYPE, typename REF,
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typename NATIVE_BASE = android_native_base_t>
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class ANativeObjectBase : public NATIVE_TYPE, public REF
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{
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public:
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// Disambiguate between the incStrong in REF and NATIVE_TYPE
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void incStrong(const void* id) const {
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REF::incStrong(id);
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}
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void decStrong(const void* id) const {
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REF::decStrong(id);
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}
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protected:
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typedef ANativeObjectBase<NATIVE_TYPE, TYPE, REF, NATIVE_BASE> BASE;
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ANativeObjectBase() : NATIVE_TYPE(), REF() {
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NATIVE_TYPE::common.incRef = incRef;
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NATIVE_TYPE::common.decRef = decRef;
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}
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static inline TYPE* getSelf(NATIVE_TYPE* self) {
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return static_cast<TYPE*>(self);
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}
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static inline TYPE const* getSelf(NATIVE_TYPE const* self) {
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return static_cast<TYPE const *>(self);
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}
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static inline TYPE* getSelf(NATIVE_BASE* base) {
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return getSelf(reinterpret_cast<NATIVE_TYPE*>(base));
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}
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static inline TYPE const * getSelf(NATIVE_BASE const* base) {
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return getSelf(reinterpret_cast<NATIVE_TYPE const*>(base));
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}
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static void incRef(NATIVE_BASE* base) {
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ANativeObjectBase* self = getSelf(base);
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self->incStrong(self);
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}
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static void decRef(NATIVE_BASE* base) {
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ANativeObjectBase* self = getSelf(base);
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self->decStrong(self);
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}
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};
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} // namespace android
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#endif // __cplusplus
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/*****************************************************************************/
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#endif /* ANDROID_ANDROID_NATIVES_H */
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