cloudabi_thread.c revision 307144 
1/*-
2 * Copyright (c) 2015 Nuxi, https://nuxi.nl/
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: stable/11/sys/compat/cloudabi/cloudabi_thread.c 307144 2016-10-12 12:17:41Z ed $");
28
29#include <sys/param.h>
30#include <sys/proc.h>
31#include <sys/sched.h>
32#include <sys/syscallsubr.h>
33#include <sys/umtx.h>
34
35#include <contrib/cloudabi/cloudabi_types_common.h>
36
37#include <compat/cloudabi/cloudabi_proto.h>
38
39int
40cloudabi_sys_thread_exit(struct thread *td,
41    struct cloudabi_sys_thread_exit_args *uap)
42{
43	struct cloudabi_sys_lock_unlock_args cloudabi_sys_lock_unlock_args = {
44		.lock = uap->lock,
45		.scope = uap->scope,
46	};
47
48	umtx_thread_exit(td);
49
50        /* Wake up joining thread. */
51	cloudabi_sys_lock_unlock(td, &cloudabi_sys_lock_unlock_args);
52
53        /*
54	 * Attempt to terminate the thread. Terminate the process if
55	 * it's the last thread.
56	 */
57	kern_thr_exit(td);
58	exit1(td, 0, 0);
59	/* NOTREACHED */
60}
61
62int
63cloudabi_sys_thread_yield(struct thread *td,
64    struct cloudabi_sys_thread_yield_args *uap)
65{
66
67	sched_relinquish(td);
68	return (0);
69}
70