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: 28 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags, 29 ReadBarrierOption kReadBarrierOption = kWithReadBarrier> 30 ALWAYS_INLINE ObjPtr<Class> GetInterface(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_); 31 32 ALWAYS_INLINE void SetInterface(int32_t i, ObjPtr<Class> interface) 33 REQUIRES_SHARED(Locks::mutator_lock_); 34 35 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags, 36 ReadBarrierOption kReadBarrierOption = kWithReadBarrier> 37 ObjPtr<PointerArray> GetMethodArrayOrNull(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_); 38 39 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags, 40 ReadBarrierOption kReadBarrierOption = kWithReadBarrier> 41 ObjPtr<PointerArray> GetMethodArray(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_); 42 43 template<VerifyObjectFlags kVerifyFlags = kDefaultVerifyFlags, 44 ReadBarrierOption kReadBarrierOption = kWithReadBarrier> 45 size_t GetMethodArrayCount(int32_t i) REQUIRES_SHARED(Locks::mutator_lock_); 46 47 void SetMethodArray(int32_t i, ObjPtr<PointerArray> arr) REQUIRES_SHARED(Locks::mutator_lock_); 48 Count()49 size_t Count() REQUIRES_SHARED(Locks::mutator_lock_) { 50 return GetLength() / kMax; 51 } 52 53 enum { 54 // Points to the interface class. 55 kInterface = 0, 56 // Method pointers into the vtable, allow fast map from interface method index to concrete 57 // instance method. 58 kMethodArray = 1, 59 kMax = 2, 60 }; 61 62 private: 63 DISALLOW_IMPLICIT_CONSTRUCTORS(IfTable); 64 }; 65 66 } // namespace mirror 67 } // namespace art 68 69 #endif // ART_RUNTIME_MIRROR_IFTABLE_H_ 70