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

   1: # include   "../ingres.h"
   2: # include   "../aux.h"
   3: # include   "../access.h"
   4: 
   5: /*
   6: **  CLOSECATALOG -- close system catalog
   7: **
   8: **	This routine closes the sysetm relations opened by calls
   9: **	to opencatalog.
  10: **
  11: **	The 'Desxx' struct defines which relations will be closed
  12: **	in this manner and is defined in .../source/aux.h.
  13: **
  14: **	The actual desxx structure definition is in the file
  15: **
  16: **		catalog_desc.c
  17: **
  18: **	which defines which relations can be cached and if any
  19: **	alias descriptors exist for the relations. That file
  20: **	can be redefined to include various caching.
  21: **
  22: **
  23: **	Parameters:
  24: **		really - whether to actually close the relations
  25: **			or just update and flush them.
  26: **
  27: **	Returns:
  28: **		none
  29: **
  30: **	Side Effects:
  31: **		A relation is (may be) closed and its pages flushed
  32: **
  33: **	Requires:
  34: **		Desxx -- a structure which defines the relations which
  35: **			should be closed. A default structure is defined in
  36: **			catalog_desc.c
  37: **
  38: **	Called By:
  39: **		most dbu routines.
  40: **		qrymod.
  41: **		parser.
  42: **		decomp.
  43: **		creatdb.
  44: **
  45: **	Trace Flags:
  46: **		none
  47: **
  48: **	Diagnostics:
  49: **		none
  50: **
  51: **	Syserrs:
  52: **
  53: **	History:
  54: **		1/30/79 (rse) -- closecat(really) needed to clear relopn
  55: **		12/12/78 (rse) -- Split from opencatalog.c
  56: */
  57: 
  58: 
  59: closecatalog(really)
  60: int really;
  61: {
  62:     register struct desxx       *p;
  63:     register int            r;
  64:     extern struct desxx     Desxx[];
  65: 
  66:     r = really;
  67: 
  68:     for (p = Desxx; p->cach_relname; p++)
  69:         if (r && !p->cach_alias)
  70:         {
  71:             if (closer(p->cach_desc) < 0)
  72:                 syserr("closecat %s", p->cach_relname);
  73:         }
  74:         else
  75:         {
  76:             if (noclose(p->cach_desc) < 0)
  77:                 syserr("closecat %s", p->cach_relname);
  78:             if (r)
  79:                 p->cach_desc->relopn = 0;
  80:         }
  81: }

Defined functions