# 2.11BSD#431 - /usr/ingres/source/access/last_page.c

##### Functions

    last_page         X

       1: # include   "../ingres.h"
       2: # include   "../access.h"
       3: # include   "../unix.h"
       4:
       5: /*
       6: **	LAST_PAGE -- computes a tid for the last page in the relation.
       7: */
       8:
       9: last_page(dx, tidx, bufx)
      10: struct descriptor   *dx;
      11: struct tup_id       *tidx;
      12: struct accbuf       *bufx;
      13: {
      14:     register struct descriptor  *d;
      15:     register struct tup_id      *tid;
      16:     register struct accbuf      *buf;
      17:     long                lpage;
      18:     struct stat         stats;
      19:
      20:     d = dx;
      21:     tid = tidx;
      22:     buf = bufx;
      23:     if ((buf != 0) && (abs(d->relspec) == M_HEAP) && (buf->mainpg == 0) && (buf->ovflopg == 0))
      24:         lpage = buf->thispage;
      25:     else
      26:     {
      27:         if (fstat(d->relfp, &stats) < 0)
      28:             syserr("last_page: fstat err %.14s", d->relid);
      29: #		ifdef xV6_UNIX
      30:         lpage = ((stats.st_sz1 >> 9) & 0177) + ((stats.st_sz0 & 0377) << 7) - 1;
      31: #		endif
      32: #		ifdef xB_UNIX
      33:         lpage = ((stats.st_sz1 >> 9) & 0177) + ((stats.st_sz0 & 0377) << 7) - 1;
      34: #		endif
      35: #		ifndef xV6_UNIX
      36: #		ifndef xB_UNIX
      37:         lpage = stats.st_size / PGSIZE - 1;
      38: #		endif
      39: #		endif
      40: #		ifdef xATR2
      41:         if (tTf(86, 2))
      42:             printf("fstat-lp %.12s %s\n", d->relid, locv(lpage));
      43: #		endif
      44:     }
      45:     stuff_page(tid, &lpage);
      46:     tid->line_id = 0;
      47:     return (0);
      48: }

#### Defined functions

last_page defined in line 9; used 3 times

- in /usr/ingres/source/access/add_ovflo.c line 41
- in /usr/ingres/source/access/findbest.c line 178
- in /usr/ingres/source/dbu/modify.c line 815

Last modified: 1980-12-17 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 530 |