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/*
* Copyright (C) 2016 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 ART_RUNTIME_OBJ_PTR_INL_H_
#define ART_RUNTIME_OBJ_PTR_INL_H_
#include "obj_ptr.h"
#include "thread-inl.h"
namespace art {
template<class MirrorType, bool kPoison>
inline bool ObjPtr<MirrorType, kPoison>::IsValid() const {
if (!kPoison || IsNull()) {
return true;
}
return GetCookie() == TrimCookie(Thread::Current()->GetPoisonObjectCookie());
}
template<class MirrorType, bool kPoison>
inline void ObjPtr<MirrorType, kPoison>::AssertValid() const {
if (kPoison) {
CHECK(IsValid()) << "Stale object pointer " << Ptr() << " , expected cookie "
<< TrimCookie(Thread::Current()->GetPoisonObjectCookie()) << " but got " << GetCookie();
}
}
template<class MirrorType, bool kPoison>
inline uintptr_t ObjPtr<MirrorType, kPoison>::Encode(MirrorType* ptr) {
uintptr_t ref = reinterpret_cast<uintptr_t>(ptr);
DCHECK_ALIGNED(ref, kObjectAlignment);
if (kPoison && ref != 0) {
DCHECK_LE(ref, 0xFFFFFFFFU);
ref >>= kObjectAlignmentShift;
// Put cookie in high bits.
Thread* self = Thread::Current();
DCHECK(self != nullptr);
ref |= self->GetPoisonObjectCookie() << kCookieShift;
}
return ref;
}
template<class MirrorType, bool kPoison>
inline std::ostream& operator<<(std::ostream& os, ObjPtr<MirrorType, kPoison> ptr) {
// May be used for dumping bad pointers, do not use the checked version.
return os << ptr.PtrUnchecked();
}
} // namespace art
#endif // ART_RUNTIME_OBJ_PTR_INL_H_
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