1 /* 2 * Copyright (C) 2016 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_COMPILER_UTILS_ATOMIC_DEX_REF_MAP_INL_H_ 18 #define ART_COMPILER_UTILS_ATOMIC_DEX_REF_MAP_INL_H_ 19 20 #include "atomic_dex_ref_map.h" 21 22 #include "dex_file-inl.h" 23 24 namespace art { 25 26 template <typename T> 27 inline typename AtomicDexRefMap<T>::InsertResult AtomicDexRefMap<T>::Insert( 28 DexFileReference ref, 29 const T& expected, 30 const T& desired) { 31 ElementArray* const array = GetArray(ref.dex_file); 32 if (array == nullptr) { 33 return kInsertResultInvalidDexFile; 34 } 35 DCHECK_LT(ref.index, array->size()); 36 return (*array)[ref.index].CompareExchangeStrongSequentiallyConsistent(expected, desired) 37 ? kInsertResultSuccess 38 : kInsertResultCASFailure; 39 } 40 41 template <typename T> 42 inline bool AtomicDexRefMap<T>::Get(DexFileReference ref, T* out) const { 43 const ElementArray* const array = GetArray(ref.dex_file); 44 if (array == nullptr) { 45 return false; 46 } 47 *out = (*array)[ref.index].LoadRelaxed(); 48 return true; 49 } 50 51 template <typename T> 52 inline void AtomicDexRefMap<T>::AddDexFile(const DexFile* dex_file, size_t max_index) { 53 arrays_.Put(dex_file, std::move(ElementArray(max_index))); 54 } 55 56 template <typename T> 57 inline typename AtomicDexRefMap<T>::ElementArray* AtomicDexRefMap<T>::GetArray( 58 const DexFile* dex_file) { 59 auto it = arrays_.find(dex_file); 60 return (it != arrays_.end()) ? &it->second : nullptr; 61 } 62 63 template <typename T> 64 inline const typename AtomicDexRefMap<T>::ElementArray* AtomicDexRefMap<T>::GetArray( 65 const DexFile* dex_file) const { 66 auto it = arrays_.find(dex_file); 67 return (it != arrays_.end()) ? &it->second : nullptr; 68 } 69 70 template <typename T> template <typename Visitor> 71 inline void AtomicDexRefMap<T>::Visit(const Visitor& visitor) { 72 for (auto& pair : arrays_) { 73 const DexFile* dex_file = pair.first; 74 const ElementArray& elements = pair.second; 75 for (size_t i = 0; i < elements.size(); ++i) { 76 visitor(DexFileReference(dex_file, i), elements[i].LoadRelaxed()); 77 } 78 } 79 } 80 81 template <typename T> 82 inline void AtomicDexRefMap<T>::ClearEntries() { 83 for (auto& it : arrays_) { 84 for (auto& element : it.second) { 85 element.StoreRelaxed(nullptr); 86 } 87 } 88 } 89 90 } // namespace art 91 92 #endif // ART_COMPILER_UTILS_ATOMIC_DEX_REF_MAP_INL_H_ 93
