oaTimeStamp.h

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// ****************************************************************************
// ****************************************************************************
// oaTimeStamp.h
//
// This file contains the definition of the oaTimeStamp class. This utility
// class provides a simple mechanism for testing if objects have been modified.
//
// ****************************************************************************
// Except as specified in the OpenAccess terms of use of Cadence or Silicon
// Integration Initiative, this material may not be copied, modified,
// re-published, uploaded, executed, or distributed in any way, in any medium,
// in whole or in part, without prior written permission from Cadence.
//
//                Copyright 2002-2005 Cadence Design Systems, Inc.
//                           All Rights Reserved.
//
//  $Author: icftcm $
//  $Revision: #1 $
//  $Date: 2010/08/09 $
//  $State: Exp $
// ****************************************************************************
// ****************************************************************************



#if !defined(oaTimeStamp_P)
#define oaTimeStamp_P



// *****************************************************************************
// Nested includes
// *****************************************************************************
#include "oaBaseTypes.h"



// *****************************************************************************
// Declare and define types in the OpenAccess namespace.
// *****************************************************************************
BEGIN_OA_NAMESPACE



// ****************************************************************************
// oaTimeStamp
// ****************************************************************************
class OA_BASE_DLL_API oaTimeStamp {
public:
                            oaTimeStamp();
                            oaTimeStamp(oaUInt4 value);

    void                    set(oaUInt4 st);
    void                    set(const oaTimeStamp &st);

    oaTimeStamp             &operator++();
    oaTimeStamp             &operator++(int);
    oaTimeStamp             &operator+=(oaUInt4 value);

    oaBoolean               operator==(const oaTimeStamp &timeStamp) const;
    oaBoolean               operator!=(const oaTimeStamp &timeStamp) const;

                            operator                oaUInt4() const;

private:
    oaUInt4                 stamp;

    friend oaBoolean        operator==(const oaTimeStamp    &s1,
                                       const oaUInt4        s2);
    friend oaBoolean        operator==(const oaUInt4        s1,
                                       const oaTimeStamp    &s2);
    friend oaBoolean        operator!=(const oaTimeStamp    &s1,
                                       const oaUInt4        s2);
    friend oaBoolean        operator!=(const oaUInt4        s1,
                                       const oaTimeStamp    &s2);
};



// *****************************************************************************
// operator==()
// operator!=()
//
// These functions implement the equality and non-equality operators for the
// oaTimeStamp class.
// *****************************************************************************
inline oaBoolean
    operator==(const oaTimeStamp    &s1,
               const oaUInt4        s2);

inline oaBoolean
    operator==(const oaUInt4        s1,
               const oaTimeStamp    &s2);

inline oaBoolean
    operator!=(const oaTimeStamp    &s1,
               const oaUInt4        s2);

inline oaBoolean
    operator!=(const oaUInt4        s1,
               const oaTimeStamp    &s2);



END_OA_NAMESPACE

#endif

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