CacheOp.h

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/*  Copyright (C) 2003-2021 Free Electron Organization
    Any use of this software requires a license.  If a valid license
    was not distributed with this file, visit freeelectron.org. */

/** @file */

#ifndef __houdini_CacheOp_h__
#define __houdini_CacheOp_h__

namespace fe
{
namespace ext
{

/**************************************************************************//**
    @brief Store and reuse copies of the input

    @ingroup houdini
*//***************************************************************************/
class FE_DL_EXPORT CacheOp:
    public OperatorSurfaceCommon,
    public Initialize<CacheOp>
{
    public:

                    CacheOp(void);
virtual             ~CacheOp(void);

        void        initialize(void);

                    //* As HandlerI
virtual void        handle(Record& a_rSignal);

        void        clearCache(void);

    private:

    class Stamp
    {
        public:
                    Stamp(void):
                        m_parmSerial(0),
                        m_feSerial(0),
                        m_upstreamChanges(0),
                        m_hit(FALSE)                                        {}

            U64     m_parmSerial;
            I32     m_feSerial;
            I32     m_upstreamChanges;
            BWORD   m_hit;
            String  m_expressions;
            String  m_values;
    };

        void        reset(void);
        I32         runScan(BWORD a_write);
        I32         scan(OP_Node* a_pOpNode,BWORD a_write,BWORD a_rootNode);
        String      nodeSignature(OP_Node* a_pOpNode,BWORD a_valuesOnly);
        void        changeHoard(String a_hoard);
        void        changeGlobal(BWORD a_include);
        void        findHoardCaches(String a_hoard,BWORD a_clear);

        OP_Node*    m_pThisOpNode;
        String      m_thisNodeParent;
        Real        m_lastFrame;
        Real        m_currentFrame;
        Real        m_poisonFrame;
        Real        m_time;
        I32         m_cacheCount;
        String      m_currentHoard;
        String      m_blame;

        std::map<I32, sp<SurfaceAccessibleI> >  m_frameCache;
        std::map<String,Stamp>                  m_stampMap;
};

} /* namespace ext */
} /* namespace fe */

#endif /* __houdini_CacheOp_h__ */