1 /* $NetBSD: tss.c,v 1.2 2019/12/15 22:32:29 uwe Exp $ */
2
3 /*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Kamil Rytarowski.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: tss.c,v 1.2 2019/12/15 22:32:29 uwe Exp $");
34
35 #include <assert.h>
36 #include <errno.h>
37 #include <pthread.h>
38 #include <threads.h>
39
40 int
tss_create(tss_t * key,tss_dtor_t dtor)41 tss_create(tss_t *key, tss_dtor_t dtor)
42 {
43
44 _DIAGASSERT(key != NULL);
45
46 if (pthread_key_create(key, dtor) == 0)
47 return thrd_success;
48
49 return thrd_error;
50 }
51
52 void
tss_delete(tss_t key)53 tss_delete(tss_t key)
54 {
55
56 /*
57 * The tss_delete(3) function that conforms to C11 returns no value.
58 */
59 (void)pthread_key_delete(key);
60 }
61
62 void *
tss_get(tss_t key)63 tss_get(tss_t key)
64 {
65
66 return pthread_getspecific(key);
67 }
68
69 int
tss_set(tss_t key,void * val)70 tss_set(tss_t key, void *val)
71 {
72
73 if (pthread_setspecific(key, val) == 0)
74 return thrd_success;
75
76 return thrd_error;
77 }
78