Annotation of 43BSD/ingres/source/iutil/add_prim.c, revision 1.1.1.1

1.1       root        1: # include      <ingres.h>
                      2: # include      <access.h>
                      3: # include      <sccs.h>
                      4: 
                      5: SCCSID(@(#)add_prim.c  8.1     12/31/84)
                      6: 
                      7: /*
                      8: **     ADD_PRIM -- Add a primary page to the relation.  Assumes it is to
                      9: **             be tacked onto page in current access method buffer.  No
                     10: **             disk write is done but the page is marked for writing.
                     11: **             It is assumed that the current page in access method buffer
                     12: **             is the last physical page in the relation.
                     13: **
                     14: **     Trace Flags:
                     15: **             26.0,2
                     16: */
                     17: 
                     18: add_prim(d, tidx)
                     19: DESC   *d;
                     20: TID    *tidx;
                     21: {
                     22:        register struct accbuf  *b;
                     23:        register int            i;
                     24: 
                     25:        b = Acc_head;
                     26:        b->mainpg = b->thispage + 1;
                     27:        b->bufstatus |= BUF_DIRTY;
                     28:        if (i = pageflush(b))
                     29:                return (i);
                     30: 
                     31:        /*
                     32:        ** Now form the new primary page
                     33:        */
                     34: 
                     35:        b->thispage = b->mainpg;
                     36:        b->mainpg = 0;
                     37:        b->ovflopg = 0;
                     38:        b->linetab[0] = (int) b->firstup - (int) b;
                     39:        b->nxtlino = 0;
                     40:        b->bufstatus |= BUF_DIRTY;
                     41: 
                     42:        /*
                     43:        ** Update tid to be new page
                     44:        */
                     45:        stuff_page(tidx, &b->thispage);
                     46:        return (0);
                     47: }

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