ICancellationToken.h

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/********************************************************************
*
*   Project     Artec 3D Scanning SDK
*
*   Purpose:    Interface for long-time processes, 
*               that allow them to check cancel condition
*
*   Copyright:  Artec Group
*
********************************************************************/

#ifndef _ICANCELLATIONTOKEN_H_
#define _ICANCELLATIONTOKEN_H_

#include <artec/sdk/base/IRef.h>

namespace artec { namespace sdk { namespace base
{
    
class ICancellationToken : public IRef
{
public:

    /** Callback to ask if process is canceled and should stop as soon as possible
    */
    virtual bool isCancellationRequested() = 0;
};

} } } // namespace artec::sdk::base

#endif // _ICANCELLATIONTOKEN_H_