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/*
* 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 */