1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                 Eclipse Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*          http://www.eclipse.org/org/documents/epl-v10.html           *
11*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#include	"dthdr.h"
23
24/*	Close a dictionary
25**
26**	Written by Kiem-Phong Vo (11/15/2010)
27*/
28#if __STD_C
29int dtclose(Dt_t* dt)
30#else
31int dtclose(dt)
32Dt_t*	dt;
33#endif
34{
35	int		ev, type;
36	Dt_t		pdt;
37	Dtdisc_t	*disc = dt->disc;
38
39	if(!dt || dt->nview > 0 ) /* can't close if being viewed */
40		return -1;
41
42	if(disc && disc->eventf) /* announce closing event */
43		ev = (*disc->eventf)(dt, DT_CLOSE, (Void_t*)1, disc);
44	else	ev = 0;
45	if(ev < 0) /* cannot close */
46		return -1;
47
48	if(dt->view) /* turn off viewing at this point */
49		dtview(dt,NIL(Dt_t*));
50
51	type = dt->data->type; /* save before memory is freed */
52	memcpy(&pdt, dt, sizeof(Dt_t));
53
54	if(ev == 0 ) /* release all allocated data */
55	{	(void)(*(dt->meth->searchf))(dt,NIL(Void_t*),DT_CLEAR);
56		(void)(*dt->meth->eventf)(dt, DT_CLOSE, (Void_t*)0);
57		/**/DEBUG_ASSERT(!dt->data);
58	}
59	if(!(type&DT_INDATA) )
60		(void)free(dt);
61
62	if(disc && disc->eventf) /* announce end of closing activities */
63		(void)(*disc->eventf)(&pdt, DT_ENDCLOSE, (Void_t*)0, disc);
64
65	return 0;
66}
67