LmdTypeDefs.h

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// $Id: LmdTypeDefs.h 4464 2020-04-15 12:14:20Z linev $
 
/************************************************************
 * 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 <cstdint>
 
#if defined(__MACH__) /* Apple OSX section */
#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 FullType() const { return iType; }
      inline uint16_t Type() const { return i_type; }
      inline uint16_t SubType() const { return i_subtype; }
 
      inline void SetFullType(uint32_t typ) { iType = typ; }
      inline void SetTypePair(unsigned typ, unsigned subtyp) { iType = (typ & 0xffff) | ((subtyp << 16) & 0xffff0000); }
 
      inline bool isFullType(uint32_t typ) const { return iType == typ; }
      inline bool isTypePair(unsigned typ, unsigned subtyp) const { return iType == ((typ & 0xffff) | ((subtyp << 16) & 0xffff0000)); }
   };
 
   // ____________________________________________________________________
 
   struct FileHeader : public Header {
      uint64_t iTableOffset;    
      uint32_t iElements;       
      uint32_t iOffsetSize;     
      uint32_t iTimeSpecSec;    
      uint32_t iTimeSpecNanoSec; 
      //  struct timespec TimeSpec;
      uint32_t iEndian;         
      uint32_t iWrittenEndian;  
      uint32_t iUsedWords;      
      uint32_t iFree3;          
   };
 
#pragma pack(pop)
 
}
 
#endif