| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _DECAF_INTERNAL_UTIL_CONCURRENT_ATOMICS_H_ |
| #define _DECAF_INTERNAL_UTIL_CONCURRENT_ATOMICS_H_ |
| |
| #include <decaf/util/Config.h> |
| |
| namespace decaf { |
| namespace internal { |
| namespace util { |
| namespace concurrent { |
| |
| class Threading; |
| |
| class DECAF_API Atomics { |
| private: |
| |
| Atomics(); |
| Atomics(const Atomics&); |
| Atomics& operator= (const Atomics&); |
| |
| public: |
| |
| template<typename T> |
| static bool compareAndSwap(T*& target, T* expect, T* update) { |
| |
| return Atomics::compareAndSet((volatile void**)&target, (void*)expect, (void*)update); |
| } |
| |
| public: |
| |
| static bool compareAndSet32(volatile int* target, int expect, int update); |
| static bool compareAndSet(volatile void** target, void* expect, void* update); |
| |
| static void* getAndSet(volatile void** target, void* value); |
| static int getAndSet(volatile int* target, int value); |
| |
| static int getAndIncrement(volatile int* target); |
| static int getAndDecrement(volatile int* target); |
| |
| static int getAndAdd(volatile int* target, int delta); |
| static int addAndGet(volatile int* target, int delta); |
| |
| static int incrementAndGet(volatile int* target); |
| static int decrementAndGet(volatile int* target); |
| |
| private: |
| |
| static void initialize(); |
| static void shutdown(); |
| |
| friend class Threading; |
| }; |
| |
| }}}} |
| |
| #endif /* _DECAF_INTERNAL_UTIL_CONCURRENT_ATOMICS_H_ */ |