/*	$OpenBSD: lib_napms.c,v 1.6 2000/06/19 03:53:50 millert Exp $	*/

/****************************************************************************
 * Copyright (c) 1998,1999,2000 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 HAVE_NANOSLEEP
#include <time.h>
#if HAVE_SYS_TIME_H
#include <sys/time.h>		/* needed for MacOS X DP3 */
#endif
#elif USE_FUNC_POLL
#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 1.9 2000/04/29 23:42:56 tom 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 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);
}