flushinp.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <unistd.h>
#include <sys/types.h>
#include "curses_inc.h"
int
flushinp(void)
{
#ifdef DEBUG
if (outf)
fprintf(outf, "flushinp(), file %x, SP %x\n",
cur_term->Filedes, SP);
#endif /* DEBUG */
#ifdef SYSV
(void) ioctl(cur_term -> Filedes, TCFLSH, 0);
#else /* SYSV */
/* for insurance against someone using their own buffer: */
(void) ioctl(cur_term -> Filedes, TIOCGETP, &(PROGTTY));
/*
* SETP waits on output and flushes input as side effect.
* Really want an ioctl like TCFLSH but Berkeley doesn't have one.
*/
(void) ioctl(cur_term -> Filedes, TIOCSETP, &(PROGTTY));
#endif /* SYSV */
/*
* Get rid of any typeahead which was read().
* Leave characters which were ungetch()'d.
*/
cur_term->_chars_on_queue = cur_term->_ungotten;
/*
* Have to doupdate() because, if we have stopped output due to
* typeahead, now that typeahead is gone, so we had better catch up.
*/
if (_INPUTPENDING)
(void) doupdate();
return (OK);
}