NetBSD/lib/libcurses/timeout.c

78 lines
2.2 KiB
C

/* $NetBSD: timeout.c,v 1.9 2017/01/06 13:53:18 roy Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Julian Coleman.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: timeout.c,v 1.9 2017/01/06 13:53:18 roy Exp $");
#endif /* not lint */
#include "curses.h"
#include "curses_private.h"
#ifndef _CURSES_USE_MACROS
/*
* timeout --
* Set the getch() delay for stdscr.
*/
void
timeout(int delay)
{
wtimeout(stdscr, delay);
}
#endif
/*
* wtimeout --
* Set the getch() delay for a window.
*/
void
wtimeout(WINDOW *win, int delay)
{
if (delay < 0)
win->delay = -1;
else if (!delay)
win->delay = delay;
else {
/*
* 1. VTIME is a char
* 2. timeout granularity is ms but VTIME is 0.1s
*/
if (delay > 25500)
win->delay = 255;
else
win->delay = (delay - 1)/ 100 + 1;
}
}