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+/*
+ * Copyright (c) 2005, Eric Crahen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __ZTATOMICCOUNT_H__
+#define __ZTATOMICCOUNT_H__
+
+#include <cstdlib>
+
+#include "zthread/Config.h"
+#include "zthread/NonCopyable.h"
+
+namespace ZThread {
+
+ /**
+ * @class AtomicCount
+ * @author Eric Crahen <http://www.code-foo.com>
+ * @date <2003-07-16T09:41:55-0400>
+ * @version 2.3.0
+ *
+ * This class provides an interface to a small integer whose value can be
+ * incremented or decremented atomically. It's designed to be as simple and
+ * lightweight as possible so that it can be used cheaply to create reference
+ * counts.
+ */
+ class ZTHREAD_API AtomicCount : public NonCopyable {
+
+ void* _value;
+
+ public:
+
+ //! Create a new AtomicCount, initialized to a value of 1
+ AtomicCount();
+
+ //! Destroy a new AtomicCount
+ ~AtomicCount();
+
+ //! Postfix decrement and return the current value
+ size_t operator--(int);
+
+ //! Postfix increment and return the current value
+ size_t operator++(int);
+
+ //! Prefix decrement and return the current value
+ size_t operator--();
+
+ //! Prefix increment and return the current value
+ size_t operator++();
+
+
+ }; /* AtomicCount */
+
+
+} // namespace ZThread
+
+#endif // __ZTATOMICCOUNT_H__