1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23/*	  All Rights Reserved	*/
24
25
26/*
27 * Copyright (c) 1994-2000 by Sun Microsystems, Inc.
28 * All rights reserved.
29 */
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"
32
33#include <sys/param.h>
34#include <sys/types.h>
35#include <sys/sysmacros.h>
36#include <sys/systm.h>
37#include <sys/user.h>
38#include <sys/errno.h>
39#include <sys/proc.h>
40#include <sys/condvar.h>
41#include <sys/debug.h>
42
43/*
44 * Indefinite wait.
45 */
46int
47pause()
48{
49	mutex_enter(&curthread->t_delay_lock);
50	while (cv_wait_sig_swap(&curthread->t_delay_cv,
51	    &curthread->t_delay_lock))
52		;
53	mutex_exit(&curthread->t_delay_lock);
54	return (set_errno(EINTR));
55}
56