Imported Upstream version 93u+upstream

1 files changed, 66 insertions, 0 deletions

diff --git a/src/lib/libast/cdt/dtclose.c b/src/lib/libast/cdt/dtclose.c
new file mode 100644
index 0000000..45bca76
--- /dev/null
+++ b/src/lib/libast/cdt/dtclose.c
@@ -0,0 +1,66 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#include	"dthdr.h"
+
+/*	Close a dictionary
+**
+**	Written by Kiem-Phong Vo (11/15/2010)
+*/
+#if __STD_C
+int dtclose(Dt_t* dt)
+#else
+int dtclose(dt)
+Dt_t*	dt;
+#endif
+{
+	int		ev, type;
+	Dt_t		pdt;
+	Dtdisc_t	*disc = dt->disc;
+
+	if(!dt || dt->nview > 0 ) /* can't close if being viewed */
+		return -1;
+
+	if(disc && disc->eventf) /* announce closing event */
+		ev = (*disc->eventf)(dt, DT_CLOSE, (Void_t*)1, disc);
+	else	ev = 0;
+	if(ev < 0) /* cannot close */
+		return -1;
+
+	if(dt->view) /* turn off viewing at this point */
+		dtview(dt,NIL(Dt_t*));
+
+	type = dt->data->type; /* save before memory is freed */
+	memcpy(&pdt, dt, sizeof(Dt_t));
+
+	if(ev == 0 ) /* release all allocated data */
+	{	(void)(*(dt->meth->searchf))(dt,NIL(Void_t*),DT_CLEAR);
+		(void)(*dt->meth->eventf)(dt, DT_CLOSE, (Void_t*)0);
+		/**/DEBUG_ASSERT(!dt->data);
+	}
+	if(!(type&DT_INDATA) )
+		(void)free(dt);
+
+	if(disc && disc->eventf) /* announce end of closing activities */
+		(void)(*disc->eventf)(&pdt, DT_ENDCLOSE, (Void_t*)0, disc);
+
+	return 0;
+}