seisrandomprovider.h

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#ifndef seisrandomprovider_h
#define seisrandomprovider_h

/*
 ________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        K. Tingdahl
 Date:          June 2012
 RCS:           $Id$
 ________________________________________________________________________
 
 */


#include "seismod.h"
#include "binidvalset.h"
#include "callback.h"
#include "multidimstorage.h"
#include "thread.h"
#include "seistrc.h"
#include "refcount.h"

class SeisTrcTranslator;
class SeisTrcReader;

/* Request a trace anywhere, and it will become available to you as soon as
   soon as possible. All reading is done int the background.
*/

mExpClass(Seis) SeisRandomProvider : public CallBacker
{
public:
                                        SeisRandomProvider(const MultiID& mid);
                                        ~SeisRandomProvider();
    
    
    void                                requestTrace(const BinID&);
    
    Notifier<SeisRandomProvider>        traceAvailable;
    const SeisTrc&                      getTrace() const { return curtrace_; }
    
    
protected:
    bool                                readTraces();
    void                                triggerWork();
    void                                readFinished(CallBacker*);
    
    bool                                isreading_;
    
    Threads::ConditionVar               lock_;
    
    SeisTrcReader*                      reader_;
    SeisTrcTranslator*                  translator_;
    
    SeisTrc                             curtrace_;
    BinIDValueSet                       wantedbids_;
};



mExpClass(Seis) SeisRandomRepository : public CallBacker
{
public:
                                SeisRandomRepository( const MultiID& mid );
    
    void                        addInterest(const BinID&);
    void                        removeInterest(const BinID);
    
    const SeisTrc*                      getTrace(const BinID&) const;
    Notifier<SeisRandomRepository>      traceAvailable;
    const BinID&                        newTraceBid() const { return newtracebid_; }
    
protected:

    struct TraceHolder
    { mRefCountImpl( TraceHolder );
                                TraceHolder() : trc_( 0 ) {}
        
        SeisTrc*                trc_;
    };
    
    void                                incomingTrace( CallBacker* );
    
    
    MultiDimStorage<TraceHolder*>       storage_;
    BinID                               newtracebid_;
};

#endif