1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_MIRROR_OBJECT_ARRAY_H_ 18 #define ART_RUNTIME_MIRROR_OBJECT_ARRAY_H_ 19 20 #include "array.h" 21 22 namespace art { 23 namespace mirror { 24 25 template<class T> 26 class MANAGED ObjectArray: public Array { 27 public: 28 // The size of Object[].class. ClassSize(size_t pointer_size)29 static uint32_t ClassSize(size_t pointer_size) { 30 return Array::ClassSize(pointer_size); 31 } 32 33 static ObjectArray<T>* Alloc(Thread* self, Class* object_array_class, int32_t length, 34 gc::AllocatorType allocator_type) 35 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 36 37 static ObjectArray<T>* Alloc(Thread* self, Class* object_array_class, int32_t length) 38 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 39 40 T* Get(int32_t i) ALWAYS_INLINE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 41 42 // Returns true if the object can be stored into the array. If not, throws 43 // an ArrayStoreException and returns false. 44 // TODO fix thread safety analysis: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). 45 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> 46 bool CheckAssignable(T* object) NO_THREAD_SAFETY_ANALYSIS; 47 48 ALWAYS_INLINE void Set(int32_t i, T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 49 // TODO fix thread safety analysis: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). 50 template<bool kTransactionActive, bool kCheckTransaction = true, 51 VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> 52 ALWAYS_INLINE void Set(int32_t i, T* object) NO_THREAD_SAFETY_ANALYSIS; 53 54 // Set element without bound and element type checks, to be used in limited 55 // circumstances, such as during boot image writing. 56 // TODO fix thread safety analysis broken by the use of template. This should be 57 // SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). 58 template<bool kTransactionActive, bool kCheckTransaction = true, 59 VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> 60 ALWAYS_INLINE void SetWithoutChecks(int32_t i, T* object) NO_THREAD_SAFETY_ANALYSIS; 61 // TODO fix thread safety analysis broken by the use of template. This should be 62 // SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). 63 template<bool kTransactionActive, bool kCheckTransaction = true, 64 VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags> 65 ALWAYS_INLINE void SetWithoutChecksAndWriteBarrier(int32_t i, T* object) 66 NO_THREAD_SAFETY_ANALYSIS; 67 68 ALWAYS_INLINE T* GetWithoutChecks(int32_t i) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 69 70 // Copy src into this array (dealing with overlaps as memmove does) without assignability checks. 71 void AssignableMemmove(int32_t dst_pos, ObjectArray<T>* src, int32_t src_pos, 72 int32_t count) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 73 74 // Copy src into this array assuming no overlap and without assignability checks. 75 void AssignableMemcpy(int32_t dst_pos, ObjectArray<T>* src, int32_t src_pos, 76 int32_t count) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 77 78 // Copy src into this array with assignability checks. 79 void AssignableCheckingMemcpy(int32_t dst_pos, ObjectArray<T>* src, int32_t src_pos, 80 int32_t count, bool throw_exception) 81 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 82 83 ObjectArray<T>* CopyOf(Thread* self, int32_t new_length) 84 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 85 86 // TODO fix thread safety analysis broken by the use of template. This should be 87 // SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). 88 template<const bool kVisitClass, typename Visitor> 89 void VisitReferences(const Visitor& visitor) NO_THREAD_SAFETY_ANALYSIS; 90 91 static MemberOffset OffsetOfElement(int32_t i); 92 93 private: 94 DISALLOW_IMPLICIT_CONSTRUCTORS(ObjectArray); 95 }; 96 97 } // namespace mirror 98 } // namespace art 99 100 #endif // ART_RUNTIME_MIRROR_OBJECT_ARRAY_H_ 101