Sink.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2009 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// dspsr/Kernel/Classes/dsp/Sink.h
 
#ifndef __dsp_Sink_h
#define __dsp_Sink_h
 
#include "dsp/Operation.h"
#include "dsp/HasInput.h"
 
namespace dsp {
 
  template <class In>
  class Sink : public Operation, public HasInput<In>
  {
 
  public:
 
    Sink (const char* _name) : Operation (_name) { }
 
    ~Sink () { }
 
    void set_cerr (std::ostream& os) const
    {
      Operation::set_cerr (os);
      if (this->input)
              this->input->set_cerr(os);
    }
 
  protected:
 
    virtual void operation ();
 
    virtual void calculation () = 0;
  };
 
}
 
template <class In>
void dsp::Sink<In>::operation () try
{
#if 0
  if (buffering_policy)
    buffering_policy -> pre_transformation ();
#endif
 
  calculation ();
 
#if 0
  if (buffering_policy)
    buffering_policy -> post_transformation ();
#endif
}
catch (Error& error)
{
  throw error += "dsp::Sink[" + name + "]::operation";
}
 
#endif