4.3BSD - /usr/ingres/source/iutil/add_prim.c

   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: }

Defined functions