wtimeout.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
* 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 (c) 1995-1998, 2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* LINTLIBRARY */
/*
*
* XCurses Library
*
* Copyright 1990, 1994 by Mortice Kern Systems Inc. All rights reserved.
*
*/
#ifdef M_RCSID
#ifndef lint
"1995/06/19 16:12:14 ant Exp $";
#endif
#endif
#include <private.h>
/*
* Set blocking or non-blocking read for a specified window.
* The delay is in milliseconds.
*/
void
{
if (delay < 0) {
/* Blocking mode */
w->_vmin = 1;
w->_vtime = 0;
} else {
/* Non-Block (0 == delay) and delayed (0 < delay) */
w->_vmin = 0;
/*
* VTIME is in 1/10 of second
* w->_vtime value will be set to termios.c_cc[VMIN].
* Since c_cc[VMIN] is an unsigned char type, the value
* to be set needs to be smaller than or equal to 255.
* Also 'delay' is in milliseconds, so it is rounted up
* to the nearest 10th of a second. Only when 'delay' is
* equal to 0, w->_vtime should become 0; otherwise,
* it should become a positive value. The previous version
* of this code was using the expression "(delay + 50) /100",
* which was incorrect.
*/
}
}