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_OBJECT_LOCK_H_ 18 #define ART_RUNTIME_OBJECT_LOCK_H_ 19 20 #include "base/macros.h" 21 #include "base/mutex.h" 22 #include "handle.h" 23 24 namespace art { 25 26 class Thread; 27 28 template <typename T> 29 class ObjectLock { 30 public: 31 ObjectLock(Thread* self, Handle<T> object) REQUIRES_SHARED(Locks::mutator_lock_); 32 33 ~ObjectLock() REQUIRES_SHARED(Locks::mutator_lock_); 34 35 void WaitIgnoringInterrupts() REQUIRES_SHARED(Locks::mutator_lock_); 36 37 void Notify() REQUIRES_SHARED(Locks::mutator_lock_); 38 39 void NotifyAll() REQUIRES_SHARED(Locks::mutator_lock_); 40 41 private: 42 Thread* const self_; 43 Handle<T> const obj_; 44 45 DISALLOW_COPY_AND_ASSIGN(ObjectLock); 46 }; 47 48 template <typename T> 49 class ObjectTryLock { 50 public: 51 ObjectTryLock(Thread* self, Handle<T> object) REQUIRES_SHARED(Locks::mutator_lock_); 52 53 ~ObjectTryLock() REQUIRES_SHARED(Locks::mutator_lock_); 54 55 bool Acquired() const { 56 return acquired_; 57 } 58 59 private: 60 Thread* const self_; 61 Handle<T> const obj_; 62 bool acquired_; 63 64 65 DISALLOW_COPY_AND_ASSIGN(ObjectTryLock); 66 }; 67 68 69 } // namespace art 70 71 #endif // ART_RUNTIME_OBJECT_LOCK_H_ 72
