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/*
* 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 <sys/types.h>
#include "curses_inc.h"
#include <fcntl.h>
/*
* Set the current time-out period for getting input.
*
* delay: < 0 for infinite delay (blocking read)
* = 0 for no delay read
* > 0 to specify a period in millisecs to wait
* for input, then return '\0' if none comes
*/
static void _setblock(int), _settimeout(int);
int
ttimeout(int delay)
{
if (cur_term->_inputfd < 0)
return (ERR);
if (delay < 0)
delay = -1;
if (cur_term->_delay == delay)
goto good;
#ifdef SYSV
if (delay > 0) {
if (cur_term->_delay < 0)
_setblock(-delay);
_settimeout(delay);
} else
if ((delay + cur_term->_delay) == -1)
_setblock(delay);
else {
if (delay < 0)
_setblock(delay);
_settimeout(delay);
}
#else /* SYSV */
cbreak();
#endif /* SYSV */
cur_term->_delay = delay;
good:
return (OK);
}
#ifdef SYSV
/* set the terminal to nodelay (==0) or block(<0) */
static void
_setblock(int block)
{
int flags = fcntl(cur_term->_inputfd, F_GETFL, 0);
if (block < 0)
flags &= ~O_NDELAY;
else
flags |= O_NDELAY;
(void) fcntl(cur_term->_inputfd, F_SETFL, flags);
}
/*
* set the terminal to timeout in t milliseconds,
* rounded up to the nearest 10th of a second.
*/
static void
_settimeout(int num)
{
PROGTTYS.c_lflag &= ~ICANON;
if (num > 0) {
PROGTTYS.c_cc[VMIN] = 0;
PROGTTYS.c_cc[VTIME] = (num > 25500) ? 255 : (num + 99) / 100;
cur_term->_fl_rawmode = 3;
} else {
PROGTTYS.c_cc[VMIN] = 1;
PROGTTYS.c_cc[VTIME] = 0;
cur_term->_fl_rawmode = 1;
}
(void) reset_prog_mode();
}
#endif /* SYSV */
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