NetBSD/lib/libcurses/delwin.c

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/* $NetBSD: delwin.c,v 1.9 1999/04/13 14:08:18 mrg Exp $ */
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/*
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* Copyright (c) 1981, 1993, 1994
* The Regents of the University of California. All rights reserved.
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*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)delwin.c 8.2 (Berkeley) 5/4/94";
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#else
__RCSID("$NetBSD: delwin.c,v 1.9 1999/04/13 14:08:18 mrg Exp $");
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#endif
#endif /* not lint */
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#include <stdlib.h>
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#include "curses.h"
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/*
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* delwin --
* Delete a window and release it back to the system.
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*/
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int
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delwin(win)
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WINDOW *win;
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{
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WINDOW *wp, *np;
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if (win->orig == NULL) {
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/*
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* If we are the original window, delete the space for all
* the subwindows, the line space and the window space.
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*/
free(win->lspace);
free(win->wspace);
free(win->lines);
wp = win->nextp;
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while (wp != win) {
np = wp->nextp;
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delwin(wp);
wp = np;
}
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} else {
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/*
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* If we are a subwindow, take ourselves out of the list.
* NOTE: if we are a subwindow, the minimum list is orig
* followed by this subwindow, so there are always at least
* two windows in the list.
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*/
for (wp = win->nextp; wp->nextp != win; wp = wp->nextp)
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continue;
wp->nextp = win->nextp;
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}
free(win);
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return (OK);
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}