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Annotation of 43BSD/ingres/source/iutil/tup_len.c, revision 1.1

1.1     ! root        1: # include      <ingres.h>
        !             2: # include      <access.h>
        !             3: # include      <sccs.h>
        !             4: 
        !             5: SCCSID(@(#)tup_len.c   8.1     12/31/84)
        !             6: 
        !             7: /*
        !             8: **     Tup_len finds the amount of space occupied by the
        !             9: **     tuple specified by "tid"
        !            10: */
        !            11: 
        !            12: tup_len(tid)
        !            13: TID    *tid;
        !            14: {
        !            15:        register short  *lp;
        !            16:        register int    nextoff, off;
        !            17:        int             lineoff, i;
        !            18: 
        !            19: 
        !            20:        /* point to line number table */
        !            21:        lp = (short *) Acc_head->linetab;
        !            22: 
        !            23:        /* find offset for tid */
        !            24:        lineoff = lp[-(tid->line_id & I1MASK)];
        !            25: 
        !            26:        /* assume next line number follows lineoff */
        !            27:        nextoff = lp[-Acc_head->nxtlino];
        !            28: 
        !            29:        /* look for the line offset following lineoff */
        !            30:        for (i = 0; i < Acc_head->nxtlino; i++)
        !            31:        {
        !            32:                off = *lp--;
        !            33: 
        !            34:                if (off <= lineoff)
        !            35:                        continue;
        !            36: 
        !            37:                if (off < nextoff)
        !            38:                        nextoff = off;
        !            39:        }
        !            40: #      ifdef xATR3
        !            41:        if (tTf(27, 8))
        !            42:                printf("tup_len ret %d\n", nextoff - lineoff);
        !            43: #      endif
        !            44:        return (nextoff - lineoff);
        !            45: }

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