11.5Sskrll/*	$NetBSD: resumecontext.c,v 1.5 2013/08/24 07:12:13 skrll Exp $	*/
21.1Schs
31.1Schs/*-
41.1Schs * Copyright (c) 2001 The NetBSD Foundation, Inc.
51.1Schs * All rights reserved.
61.1Schs *
71.1Schs * This code is derived from software contributed to The NetBSD Foundation
81.1Schs * by Klaus Klein.
91.1Schs *
101.1Schs * Redistribution and use in source and binary forms, with or without
111.1Schs * modification, are permitted provided that the following conditions
121.1Schs * are met:
131.1Schs * 1. Redistributions of source code must retain the above copyright
141.1Schs *    notice, this list of conditions and the following disclaimer.
151.1Schs * 2. Redistributions in binary form must reproduce the above copyright
161.1Schs *    notice, this list of conditions and the following disclaimer in the
171.1Schs *    documentation and/or other materials provided with the distribution.
181.1Schs *
191.1Schs * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
201.1Schs * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
211.1Schs * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
221.1Schs * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
231.1Schs * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
241.1Schs * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
251.1Schs * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
261.1Schs * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
271.1Schs * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
281.1Schs * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
291.1Schs * POSSIBILITY OF SUCH DAMAGE.
301.1Schs */
311.1Schs
321.1Schs#include <sys/cdefs.h>
331.1Schs#if defined(LIBC_SCCS) && !defined(lint)
341.5Sskrll__RCSID("$NetBSD: resumecontext.c,v 1.5 2013/08/24 07:12:13 skrll Exp $");
351.1Schs#endif
361.1Schs
371.1Schs#include "namespace.h"
381.2Smartin#include <stdlib.h>
391.1Schs#include <ucontext.h>
401.2Smartin#include <unistd.h>
411.1Schs#include "extern.h"
421.1Schs
431.1Schsvoid
441.4Sjoerg_resumecontext(void)
451.1Schs{
461.1Schs	ucontext_t uct;
471.1Schs
481.1Schs	(void)getcontext(&uct);
491.5Sskrll	if (uct.uc_link == NULL)
501.2Smartin		exit(0);
511.1Schs	(void)setcontext(uct.uc_link);
521.2Smartin	_exit(-1);
531.1Schs	/* NOTREACHED */
541.1Schs}
55