/************************************************************
 * The Data Acquisition Backbone Core (DABC)                *
 ************************************************************
 * Copyright (C) 2009 -                                     *
 * GSI Helmholtzzentrum fuer Schwerionenforschung GmbH      *
 * Planckstr. 1, 64291 Darmstadt, Germany                   *
 * Contact:  http://dabc.gsi.de                             *
 ************************************************************
 * This software can be used under the GPL license          *
 * agreements as stated in LICENSE.txt file                 *
 * which is part of the distribution.                       *
 ************************************************************/

#ifndef MBS_LmdTypeDefs
#define MBS_LmdTypeDefs

#include <stdint.h>

#ifdef __APPLE__
//on MacOS endian.h is in a differnt directory
#include <machine/endian.h>
#else                  
#include <endian.h>        
#endif

namespace mbs {

#if BYTE_ORDER == LITTLE_ENDIAN
#define MBS_TYPE(typ, subtyp) ((int32_t) typ | ((int32_t) subtyp) << 16)
#else
#define MBS_TYPE(typ, subtyp) ((int32_t) subtyp | ((int32_t) typ) << 16)
#endif

#pragma pack(push, 1)

   struct Header {
      uint32_t iWords;       // data words + 2
      union {
        struct {
#if BYTE_ORDER == LITTLE_ENDIAN
          uint16_t i_type;
          uint16_t i_subtype;
#else
          uint16_t i_subtype;
          uint16_t i_type;
#endif
        };
        uint32_t iType;
      };

      // FullSize - size of data with header (8 bytes)
      inline uint32_t FullSize() const { return 8 + iWords*2; }
      inline void SetFullSize(uint32_t sz) { iWords = (sz - 8) /2; }

      inline uint32_t Type() const { return iType; }
   };

#pragma pack(pop)

}

#endif