lib/src/ircdef.h

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#ifndef ircdef_h
#define ircdef_h

#define         IRC_M_PTRSZ             0x3
#define         IRC_M_RECORDCB          0xFC
#define         IRC_M_DELETED           0x4
#define         IRC_M_NOPTRSZ           0x10
#define         IRC_M_FIRST_KEY         0x80
#define         IRC_M_RRV               0x8
#define         IRC_M_NODUPCNT          0x10
#define         IRC_M_RU_DELETE         0x20
#define         IRC_M_RU_UPDATE         0x40
#define         IRC_C_IDXPTRBAS         2
#define         IRC_C_IDXOVHDSZ         1

#define         IRC_S_IRCDEF            1
        
#define         IRC_S_IRCDEF1           3
        
#define         IRC_C_DATSZFLD          2
#define         IRC_C_DATPTRBAS         3
#define         IRC_C_DCNTSZFLD         4
#define         IRC_C_DATOVHDSZ         2
#define         IRC_C_FIXOVHDSZ         7
#define         IRC_C_VAROVHDSZ         9
#define         IRC_C_RRVOVHDSZ         7

#define         IRC_C_DATPTRBS3         4
#define         IRC_C_DATOVHSZ3         3
#define         IRC_C_FIXOVHSZ3         9
#define         IRC_C_VAROVHSZ3         11
#define         IRC_C_RRVOVHSZ3         9
#define         IRC_C_SDROVHSZ3         2
#define         IRC_C_KEYCMPOVH         2
#define         IRC_C_DATCMPOVH         3
#define         IRC_S_IRCDEF2           5

// maybe this is the stuff around General Data Bucket Record/Record Reference Vector in rmsint2.doc?
        
struct _irc {
  union  {
    unsigned char irc_b_control;
#if 0
    struct  {
      unsigned irc_v_ptrsz              : 2;
      unsigned irc_v_recordcb           : 6;
    };
    struct  {
      unsigned irc_$_fill_1             : 2;
      unsigned irc_v_deleted            : 1;
      unsigned irc_$_fill_2             : 1;
      unsigned irc_v_noptrsz            : 1;
      unsigned irc_$_fill_3             : 2;
      unsigned irc_v_first_key          : 1;
    };
    struct  {
      unsigned irc_$_fill_3             : 3;
      unsigned irc_v_rrv                : 1;
      unsigned irc_v_fill_5_            : 4;
    };
    struct  {
      unsigned irc_$_fill_5             : 4;
      unsigned irc_v_nodupcnt           : 1;
      unsigned irc_v_fill_6_            : 3;
    };
    struct  {
      unsigned irc_$_fill_6             : 5;
      unsigned irc_v_ru_delete          : 1;
      unsigned irc_v_ru_update          : 1;
      unsigned irc_v_fill_7_            : 1;
    };
    struct  {
      char irc_$_fill_7;
    };
#endif
  };
};
 
struct _irc1 {
  struct _irc irc_r_irc;
  unsigned char irc_b_id;
  unsigned char irc_b_rrv_id;
};

struct _irc2 {
  struct _irc irc_r_irc;
  unsigned short int irc_w_id;
  unsigned short int irc_w_rrv_id;
};

// making my own

// this is preceded by a control byte
// that byte is seperate because of alignment

struct _irc_idx {
  unsigned short int irc_w_id;
  unsigned short int irc_w_rrv_id;
  unsigned long irc_l_vbn;
  unsigned short int irc_w_addnxtid; // add this to the the keylen offset 
                                     // to find the next idx
  unsigned short int irc_w_keylen;
};

#endif
 

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