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Annotation of 42BSD/ingres/source/h/batch.h, revision 1.1

1.1     ! root        1: #
        !             2: /*
        !             3: **  BATCH.H -- batch file declarations.
        !             4: **
        !             5: **     Version:
        !             6: **             @(#)batch.h     7.1     2/5/81
        !             7: */
        !             8: 
        !             9: 
        !            10: 
        !            11: # define       BATCHSIZE       506     /* available buffer space */
        !            12: # define       IDSIZE          6       /* size of file id */
        !            13: 
        !            14: struct batchbuf
        !            15: {
        !            16:        char    file_id[IDSIZE];        /* unique file name identifier */
        !            17:        char    bbuf[BATCHSIZE];        /* buffer for batch storage */
        !            18: };
        !            19: 
        !            20: 
        !            21: struct si_doms
        !            22: {
        !            23:        short   rel_off;        /* offset in primary tuple */
        !            24:        short   tupo_off;       /* offset in saved tuple-old */
        !            25:        short   dom_size;       /* width of the domain */
        !            26:                                /* if zero then domain not used */
        !            27: };
        !            28: struct batchhd
        !            29: {
        !            30:        char    db_name[15];    /* data base name */
        !            31:        char    rel_name[13];   /* relation name */
        !            32:        char    userid[2];      /* ingres user code */
        !            33:        long    num_updts;      /* actual number of tuples to be updated */
        !            34:        short   mode_up;        /* type of update */
        !            35:        short   tido_size;      /* width of old_tuple_id field */
        !            36:        short   tupo_size;      /* width of old tuple */
        !            37:        short   tupn_size;      /* width of new tuple */
        !            38:        short   tidn_size;      /* width of new_tuple_id field */
        !            39:        short   si_dcount;      /* number of sec. index domains affected */
        !            40:        struct si_doms  si[MAXDOM+1];   /* entry for each domain with sec. index */
        !            41: };
        !            42: 
        !            43: 
        !            44: 
        !            45: short  Batch_fp;       /* file descriptor for batch file */
        !            46: short  Batch_cnt;      /* number of bytes taken from the current buffer */
        !            47: short  Batch_dirty;    /* used during update to mark a dirty page */
        !            48: short  Batch_lread;    /* number of bytes last read in readbatch() */
        !            49: short  Batch_recovery; /* TRUE is this is recovery, else FALSE */
        !            50: 
        !            51: extern char    *Fileset;       /* unique id of batch maker */
        !            52: struct batchbuf        Batchbuf;
        !            53: struct batchhd Batchhd;
        !            54: # define       MODBATCH        "_SYSmod"
        !            55: # define       MODTEMP         "_SYSnewr"
        !            56: # define       ISAM_SORTED     "_SYSsort"
        !            57: # define       ISAM_DESC       "_SYSdesc"
        !            58: # define       ISAM_SPOOL      "_SYSspol"
        !            59: # define       MOD_PREBATCH    "_SYSpreb"

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