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/*
* Copyright (C) 2011 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_MIRROR_OBJECT_ARRAY_H_
#define ART_RUNTIME_MIRROR_OBJECT_ARRAY_H_
#include "array.h"
#include "obj_ptr.h"
namespace art {
namespace mirror {
template<class T>
class MANAGED ObjectArray: public Array {
public:
// The size of Object[].class.
static uint32_t ClassSize(PointerSize pointer_size) {
return Array::ClassSize(pointer_size);
}
static ObjPtr<ObjectArray<T>> Alloc(Thread* self,
ObjPtr<Class> object_array_class,
int32_t length,
gc::AllocatorType allocator_type)
REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
static ObjPtr<ObjectArray<T>> Alloc(Thread* self,
ObjPtr<Class> object_array_class,
int32_t length)
REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
ALWAYS_INLINE ObjPtr<T> Get(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_);
// Returns true if the object can be stored into the array. If not, throws
// an ArrayStoreException and returns false.
// TODO fix thread safety analysis: should be REQUIRES_SHARED(Locks::mutator_lock_).
template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
bool CheckAssignable(ObjPtr<T> object) NO_THREAD_SAFETY_ANALYSIS;
ALWAYS_INLINE void Set(int32_t i, ObjPtr<T> object) REQUIRES_SHARED(Locks::mutator_lock_);
// TODO fix thread safety analysis: should be REQUIRES_SHARED(Locks::mutator_lock_).
template<bool kTransactionActive, bool kCheckTransaction = true,
VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
ALWAYS_INLINE void Set(int32_t i, ObjPtr<T> object) NO_THREAD_SAFETY_ANALYSIS;
// Set element without bound and element type checks, to be used in limited
// circumstances, such as during boot image writing.
// TODO fix thread safety analysis broken by the use of template. This should be
// REQUIRES_SHARED(Locks::mutator_lock_).
template<bool kTransactionActive, bool kCheckTransaction = true,
VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
ALWAYS_INLINE void SetWithoutChecks(int32_t i, ObjPtr<T> object) NO_THREAD_SAFETY_ANALYSIS;
// TODO fix thread safety analysis broken by the use of template. This should be
// REQUIRES_SHARED(Locks::mutator_lock_).
template<bool kTransactionActive, bool kCheckTransaction = true,
VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags>
ALWAYS_INLINE void SetWithoutChecksAndWriteBarrier(int32_t i, ObjPtr<T> object)
NO_THREAD_SAFETY_ANALYSIS;
template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags,
ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
ALWAYS_INLINE ObjPtr<T> GetWithoutChecks(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_);
// Copy src into this array (dealing with overlaps as memmove does) without assignability checks.
void AssignableMemmove(int32_t dst_pos,
ObjPtr<ObjectArray<T>> src,
int32_t src_pos,
int32_t count)
REQUIRES_SHARED(Locks::mutator_lock_);
// Copy src into this array assuming no overlap and without assignability checks.
void AssignableMemcpy(int32_t dst_pos,
ObjPtr<ObjectArray<T>> src,
int32_t src_pos,
int32_t count)
REQUIRES_SHARED(Locks::mutator_lock_);
// Copy src into this array with assignability checks.
template<bool kTransactionActive>
void AssignableCheckingMemcpy(int32_t dst_pos,
ObjPtr<ObjectArray<T>> src,
int32_t src_pos,
int32_t count,
bool throw_exception)
REQUIRES_SHARED(Locks::mutator_lock_);
ObjPtr<ObjectArray<T>> CopyOf(Thread* self, int32_t new_length)
REQUIRES_SHARED(Locks::mutator_lock_)
REQUIRES(!Roles::uninterruptible_);
static MemberOffset OffsetOfElement(int32_t i);
private:
// TODO fix thread safety analysis broken by the use of template. This should be
// REQUIRES_SHARED(Locks::mutator_lock_).
template<typename Visitor>
void VisitReferences(const Visitor& visitor) NO_THREAD_SAFETY_ANALYSIS;
friend class Object; // For VisitReferences
DISALLOW_IMPLICIT_CONSTRUCTORS(ObjectArray);
};
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_OBJECT_ARRAY_H_
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