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/*
* Copyright (C) 2014 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_READ_BARRIER_H_
#define ART_RUNTIME_READ_BARRIER_H_
#include "base/mutex.h"
#include "base/macros.h"
#include "offsets.h"
#include "read_barrier_c.h"
// This is a C++ (not C) header file, separate from read_barrier_c.h
// which needs to be a C header file for asm_support.h.
namespace art {
namespace mirror {
class Object;
template<typename MirrorType> class HeapReference;
} // namespace mirror
class ReadBarrier {
public:
template <typename MirrorType, ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
ALWAYS_INLINE static MirrorType* Barrier(
mirror::Object* obj, MemberOffset offset, mirror::HeapReference<MirrorType>* ref_addr)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template <typename MirrorType, ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
ALWAYS_INLINE static MirrorType* BarrierForWeakRoot(MirrorType** weak_root)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
};
} // namespace art
#endif // ART_RUNTIME_READ_BARRIER_H_