Event/eformat/include/eformat/RunNumber.h

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// Dear emacs, this is -*- c++ -*-
 
/**
 * @file eformat/RunNumber.h
 * @author <a href="mailto:Andre.dos.Anjos@cern.ch">Andre DOS ANJOS</a>
 * $Author: zhangy $
 * $Revision: 1.1.1.1 $
 * $Date: 2009/06/19 07:35:41 $
 *
 * @brief A helper class to aid in composing valid run numbers
 */
 
#ifndef EFORMAT_RUNNUMBER_H
#define EFORMAT_RUNNUMBER_H
 
#include <stdint.h>
 
namespace eformat {
 
  /**
   * Physics Types
   */
  enum RunType { PHYSICS = 0x00, CALIBRATION = 0x01, COSMICS = 0x02, TEST = 0x0f };
 
  /**
   * An alias
   */
  typedef enum RunType RunType;
 
  namespace helper {
 
    /**
     * Defines converters between version numbers and its components
     */
    class RunNumber {
 
    public:
      /**
       * Constructor. Takes the components to form a run number
       *
       * @param type The run type (@see types.h)
       * @param n The number 24-bits only are valid
       */
      RunNumber( eformat::RunType type, uint32_t n ) : m_type( type ), m_n( n ) {}
 
      /**
       * Constructor. Takes the run number to understand the components from.
       *
       * @param rn The run number, fully built.
       * @warning This run number <b>has</b> to conform to the current
       * version of the library or unpredictable results might occur.
       */
      RunNumber( uint32_t rn );
 
      /**
       * Extracts the major version part of this version
       */
      inline eformat::RunType type( void ) const { return m_type; }
 
      /**
       * Extracts the minor version part of this version
       */
      inline uint32_t number( void ) const { return m_n; }
 
      /**
       * Gets the full 32-bit number made by assembling the 2 numbers
       * above.
       */
      uint32_t code( void ) const;
 
    private:                   // representation
      eformat::RunType m_type; ///< This run type
      uint32_t         m_n;    ///< This run number
    };
 
  } // namespace helper
 
} // namespace eformat
 
#endif /* EFORMAT_RUNNUMBER_H */