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BUG#: 8023
TITLE: Performance rework reference count in common CIM classes

DESCRIPTION: Re-implementation of reference counting for Common/CIM*Rep classes.

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// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
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#ifndef Pegasus_QualifierRep_h
#define Pegasus_QualifierRep_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Linkage.h>
#include <Pegasus/Common/Constants.h>
#include <Pegasus/Common/CIMName.h>
#include <Pegasus/Common/CIMValue.h>
#include <Pegasus/Common/Array.h>
#include <Pegasus/Common/Pair.h>
#include <Pegasus/Common/InternalException.h>
#include <Pegasus/Common/CIMFlavor.h>
#include <Pegasus/Common/Buffer.h>
#include <Pegasus/Common/OrderedSet.h>

PEGASUS_NAMESPACE_BEGIN

class CIMConstQualifier;
class CIMQualifier;

class CIMQualifierRep
{
public:

    CIMQualifierRep(
        const CIMName& name,
        const CIMValue& value,
        const CIMFlavor& flavor,
        Boolean propagated);

    const CIMName& getName() const
    {
        return _name;
    }

    Uint32 getNameTag() const
    {
        return _nameTag;
    }

    void increaseOwnerCount()
    {
        _ownerCount++;
        return;
    }

    void decreaseOwnerCount()
    {
        _ownerCount--;
        return;
    }

    void setName(const CIMName& name);

    CIMType getType() const
    {
        return _value.getType();
    }

    Boolean isArray() const
    {
        return _value.isArray();
    }

    const CIMValue& getValue() const
    {
        return _value;
    }

    void setValue(const CIMValue& value)
    {
        _value = value;
    }

    const CIMFlavor & getFlavor() const
    {
        return _flavor;
    }

    void setFlavor(const CIMFlavor & flavor)
    {
        _flavor = flavor;
    }

    void unsetFlavor(const CIMFlavor & flavor)
    {
        _flavor.removeFlavor (flavor);
    }

    void resolveFlavor (const CIMFlavor & inheritedFlavor, Boolean inherited);

    Boolean getPropagated() const
    {
        return _propagated;
    }

    void setPropagated(Boolean propagated)
    {
        _propagated = propagated;
    }

    Boolean identical(const CIMQualifierRep* x) const;

    CIMQualifierRep* clone() const
    {
        return new CIMQualifierRep(*this);
    }

    void Inc()
    {
         _refCounter++;
    }

    void Dec()
    {
        if (_refCounter.decAndTestIfZero())
            delete this;
    }

private:

    // Cloning constructor:

    CIMQualifierRep(const CIMQualifierRep& x);

    CIMQualifierRep();    // Unimplemented
    CIMQualifierRep& operator=(const CIMQualifierRep& x);    // Unimplemented

    CIMName _name;
    CIMValue _value;
    CIMFlavor _flavor;
    Boolean _propagated;
    Uint32 _nameTag;

    // reference counter as member to avoid
    // virtual function resolution overhead
    AtomicInt _refCounter;
    Uint32 _ownerCount;
    
    friend class CIMQualifierList;
};

PEGASUS_NAMESPACE_END

#endif /* Pegasus_QualifierRep_h */