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