inline_hadron_contract.h

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// -*- C++ -*-
/*! \file
 * \brief Inline hadron contractions - for correlators
 *
 * Hadron spectrum calculations. The general version that write output
 * into lime files.
 */
 
#ifndef __inline_hadron_contract_h__
#define __inline_hadron_contract_h__
 
#include "chromabase.h"
#include "meas/inline/abs_inline_measurement.h"
#include "io/xml_group_reader.h"
 
namespace Chroma 
{ 
  /*! \ingroup inlinehadron */
  namespace InlineHadronContractEnv 
  {
    extern const std::string name;
    bool registerAll();
 
    //! Parameter structure
    /*! \ingroup inlinehadron */
    struct Params 
    {
      Params();
      Params(XMLReader& xml_in, const std::string& path);
      void writeXML(XMLWriter& xml_out, const std::string& path);
 
      struct NamedObject_t
      {
        std::string         gauge_id;     /*!< Input gauge field */
        std::string         output_file;  /*!< Output file for data in QIO/LIME format */
        multi1d<GroupXML_t> correlators;  /*!< XML used for each correlator */
      };
 
      unsigned long   frequency;
 
      NamedObject_t   named_obj;   /*!< Named objects */
      std::string     xml_file;    /*!< Alternate XML file pattern */
    };
 
 
    //! Inline measurement of hadron contraction functions
    /*! \ingroup inlinehadron */
    class InlineMeas : public AbsInlineMeasurement 
    {
    public:
      ~InlineMeas() {}
      InlineMeas(const Params& p) : params(p) {}
      InlineMeas(const InlineMeas& p) : params(p.params) {}
 
      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:
      Params params;
    };
 
  }
 
}
 
#endif