1 /* $OpenBSD: w_vfork.c,v 1.1 2016/05/07 19:05:22 guenther Exp $ */
2 /*
3 * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <tib.h>
19 #include <unistd.h>
20 #include "thread_private.h"
21
22 pid_t
WRAP(vfork)23 WRAP(vfork)(void)
24 {
25 pid_t newid;
26
27 if (_thread_cb.tc_vfork != NULL)
28 return (_thread_cb.tc_vfork());
29 newid = vfork();
30 if (newid == 0)
31 TIB_GET()->tib_tid = getthrid();
32 return newid;
33 }
34 DEF_WRAP(vfork);
35