AtomicBoolean.h

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/*
 * 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_UTIL_CONCURRENT_ATOMIC_ATOMICBOOLEAN_H_
#define _DECAF_UTIL_CONCURRENT_ATOMIC_ATOMICBOOLEAN_H_
 
#include <string>
#include <decaf/util/Config.h>
 
namespace decaf {
namespace util {
namespace concurrent {
namespace atomic {
 
    class DECAF_API AtomicBoolean {
    private:
 
        volatile int value;
 
    private:
 
        AtomicBoolean(const AtomicBoolean&);
        AtomicBoolean& operator= (const AtomicBoolean&);
 
    public:
 
        AtomicBoolean();
 
        AtomicBoolean(bool initialValue);
 
        virtual ~AtomicBoolean() {}
 
        bool get() const {
            return value == 0 ? false : true;
        }
 
        void set(bool newValue) {
            this->value = newValue ? 1 : 0;
        }
 
        bool compareAndSet(bool expect, bool update);
 
        bool getAndSet(bool newValue);
 
        std::string toString() const;
 
    };
 
}}}}
 
#endif /*_DECAF_UTIL_CONCURRENT_ATOMIC_ATOMICBOOLEAN_H_*/