11.4Sjoerg/*	$NetBSD: resumecontext.c,v 1.4 2011/09/19 21:24:58 joerg Exp $	*/
21.1Smatt
31.1Smatt/*-
41.1Smatt * Copyright (c) 2001 The NetBSD Foundation, Inc.
51.1Smatt * All rights reserved.
61.1Smatt *
71.1Smatt * This code is derived from software contributed to The NetBSD Foundation
81.1Smatt * by Klaus Klein.
91.1Smatt *
101.1Smatt * Redistribution and use in source and binary forms, with or without
111.1Smatt * modification, are permitted provided that the following conditions
121.1Smatt * are met:
131.1Smatt * 1. Redistributions of source code must retain the above copyright
141.1Smatt *    notice, this list of conditions and the following disclaimer.
151.1Smatt * 2. Redistributions in binary form must reproduce the above copyright
161.1Smatt *    notice, this list of conditions and the following disclaimer in the
171.1Smatt *    documentation and/or other materials provided with the distribution.
181.1Smatt *
191.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
201.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
211.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
221.1Smatt * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
231.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
241.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
251.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
261.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
271.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
281.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
291.1Smatt * POSSIBILITY OF SUCH DAMAGE.
301.1Smatt */
311.1Smatt
321.1Smatt#include <sys/cdefs.h>
331.1Smatt#if defined(LIBC_SCCS) && !defined(lint)
341.4Sjoerg__RCSID("$NetBSD: resumecontext.c,v 1.4 2011/09/19 21:24:58 joerg Exp $");
351.1Smatt#endif
361.1Smatt
371.1Smatt#include "namespace.h"
381.2Smartin#include <stdlib.h>
391.1Smatt#include <ucontext.h>
401.2Smartin#include <unistd.h>
411.1Smatt#include "extern.h"
421.1Smatt
431.1Smattvoid
441.4Sjoerg_resumecontext(void)
451.1Smatt{
461.1Smatt	ucontext_t uct;
471.1Smatt
481.1Smatt	(void)getcontext(&uct);
491.2Smartin	if (uct.uc_link == NULL)
501.2Smartin		exit(0);
511.1Smatt	(void)setcontext(uct.uc_link);
521.2Smartin	_exit(-1);
531.1Smatt	/* NOTREACHED */
541.1Smatt}
55