inline_wilslp.h

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// -*- C++ -*-
/*! \file
 *  \brief Inline Wilson loops
 */
 
#ifndef __inline_wilslp_h__
#define __inline_wilslp_h__
 
#include "chromabase.h"
#include "handle.h"
#include "create_state.h"
#include "meas/inline/abs_inline_measurement.h"
#include "io/xml_group_reader.h"
 
namespace Chroma 
{ 
  /*! \ingroup inlineglue */
  namespace InlineWilsonLoopEnv 
  {
    extern const std::string name;
    bool registerAll();
  }
 
 
  //! Parameter structure
  /*! \ingroup inlineglue */
  struct InlineWilsonLoopParams 
  {
    InlineWilsonLoopParams();
    InlineWilsonLoopParams(XMLReader& xml_in, const std::string& path);
 
    unsigned long frequency;
 
    struct Param_t
    {
      int           kind;
      int           j_decay;
      int           t_dir;
      GroupXML_t    cgs;      /*!< Gauge State */
    } param;
 
    struct NamedObject_t
    {
      std::string   gauge_id;
    } named_obj;
 
    std::string xml_file;  // Alternate XML file pattern
  };
 
 
  //! Inline measurement of Wilson loops
  /*! \ingroup inlineglue */
  class InlineWilsonLoop : public AbsInlineMeasurement 
  {
  public:
    typedef multi1d<LatticeColorMatrix>  P;
    typedef multi1d<LatticeColorMatrix>  Q;
 
    ~InlineWilsonLoop() {}
    InlineWilsonLoop(const InlineWilsonLoopParams& p) : params(p) {}
 
    unsigned long getFrequency(void) const {return params.frequency;}
 
    //! Do the measurement
    void operator()(const unsigned long update_no,
                    XMLWriter& xml_out); 
 
  protected:
    //! Do the measurement
    void func(const unsigned long update_no,
              XMLWriter& xml_out); 
 
  private:
    InlineWilsonLoopParams params;
  };
 
}
 
#endif