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_IFTABLE_H_ 18 #define ART_RUNTIME_MIRROR_IFTABLE_H_ 19 20 #include "base/casts.h" 21 #include "object_array.h" 22 23 namespace art { 24 namespace mirror { 25 26 class MANAGED IfTable FINAL : public ObjectArray<Object> { 27 public: GetInterface(int32_t i)28 ALWAYS_INLINE Class* GetInterface(int32_t i) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 29 Class* interface = GetWithoutChecks((i * kMax) + kInterface)->AsClass(); 30 DCHECK(interface != NULL); 31 return interface; 32 } 33 34 ALWAYS_INLINE void SetInterface(int32_t i, Class* interface) 35 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 36 GetMethodArray(int32_t i)37 ObjectArray<ArtMethod>* GetMethodArray(int32_t i) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 38 ObjectArray<ArtMethod>* method_array = 39 down_cast<ObjectArray<ArtMethod>*>(Get((i * kMax) + kMethodArray)); 40 DCHECK(method_array != NULL); 41 return method_array; 42 } 43 GetMethodArrayCount(int32_t i)44 size_t GetMethodArrayCount(int32_t i) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 45 ObjectArray<ArtMethod>* method_array = 46 down_cast<ObjectArray<ArtMethod>*>(Get((i * kMax) + kMethodArray)); 47 if (method_array == NULL) { 48 return 0; 49 } 50 return method_array->GetLength(); 51 } 52 SetMethodArray(int32_t i,ObjectArray<ArtMethod> * new_ma)53 void SetMethodArray(int32_t i, ObjectArray<ArtMethod>* new_ma) 54 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 55 DCHECK(new_ma != NULL); 56 DCHECK(Get((i * kMax) + kMethodArray) == NULL); 57 Set<false>((i * kMax) + kMethodArray, new_ma); 58 } 59 Count()60 size_t Count() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 61 return GetLength() / kMax; 62 } 63 64 enum { 65 // Points to the interface class. 66 kInterface = 0, 67 // Method pointers into the vtable, allow fast map from interface method index to concrete 68 // instance method. 69 kMethodArray = 1, 70 kMax = 2, 71 }; 72 73 private: 74 DISALLOW_IMPLICIT_CONSTRUCTORS(IfTable); 75 }; 76 77 } // namespace mirror 78 } // namespace art 79 80 #endif // ART_RUNTIME_MIRROR_IFTABLE_H_ 81