/*	$OpenBSD: lib_napms.c,v 1.1 1998/07/23 21:19:06 millert Exp $	*/

/****************************************************************************
 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/


/*
 *	lib_napms.c
 *
 *	The routine napms.
 *
 */

#include <curses.priv.h>

#if USE_FUNC_POLL
#include <stropts.h>
#include <poll.h>
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#elif HAVE_SELECT
#if HAVE_SYS_TIME_H && HAVE_SYS_TIME_SELECT
#include <sys/time.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#endif  

MODULE_ID("$From: lib_napms.c,v 1.4 1998/02/13 10:24:54 jbuhler Exp $")

int napms(int ms)
{
	T((T_CALLED("napms(%d)"), ms));

#if HAVE_NANOSLEEP
	{
		struct timespec ts;
		ts.tv_sec = ms / 1000;
		ts.tv_nsec = (ms % 1000) * 1000000;
		nanosleep(&ts, NULL);
	}
#elif HAVE_USLEEP
	usleep(1000*(unsigned)ms);
#elif USE_FUNC_POLL
	{
		struct pollfd fds[1];
		poll(fds, 0, ms);
	}
#elif HAVE_SELECT
	{
		struct timeval tval;
		tval.tv_sec = ms / 1000;
		tval.tv_usec = (ms % 1000) * 1000;
		select(0, NULL, NULL, NULL, &tval);
	}
#endif
	returnCode(OK);
}