4.3BSD/usr/ingres/source/iutil/closecat.c

# include	<ingres.h>
# include	<aux.h>
# include	<access.h>
# include	<sccs.h>

SCCSID(@(#)closecat.c	8.1	12/31/84)

/*
**  CLOSECATALOG -- close system catalog
**
**	This routine closes the sysetm relations opened by calls
**	to opencatalog.
**
**	The 'Desxx' struct defines which relations will be closed
**	in this manner and is defined in .../source/aux.h.
**
**	The actual desxx structure definition is in the file
**	
**		catalog_desc.c
**
**	which defines which relations can be cached and if any
**	alias descriptors exist for the relations. That file
**	can be redefined to include various caching.
**
**	Parameters:
**		really - whether to actually close the relations
**			or just update and flush them.
**
**	Returns:
**		none
**
**	Side Effects:
**		A relation is (may be) closed and its pages flushed
**
**	Trace Flags:
**		none
*/


closecatalog(really)
bool	really;
{
	register struct desxx	*p;
	extern struct desxx	Desxx[];
	extern long		CmOfiles;

	for (p = Desxx; p->cach_relname; p++)
	{
		if (really && !p->cach_alias)
		{
			CmOfiles &= ~(1 << p->cach_desc->relfp);
			if (closer(p->cach_desc) < 0)
				syserr("closecat %s", p->cach_relname);
		}
		else
		{
			if (noclose(p->cach_desc) < 0)
				syserr("closecat %s", p->cach_relname);
			if (really)
				p->cach_desc->relopn = 0;
		}
	}
}