NetBSD/lib/libpthread/tss.c

78 lines
2.2 KiB
C
Raw Normal View History

/* $NetBSD: tss.c,v 1.2 2019/12/15 22:32:29 uwe Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Kamil Rytarowski.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: tss.c,v 1.2 2019/12/15 22:32:29 uwe Exp $");
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <threads.h>
int
tss_create(tss_t *key, tss_dtor_t dtor)
{
_DIAGASSERT(key != NULL);
if (pthread_key_create(key, dtor) == 0)
return thrd_success;
return thrd_error;
}
void
tss_delete(tss_t key)
{
/*
* The tss_delete(3) function that conforms to C11 returns no value.
*/
(void)pthread_key_delete(key);
}
void *
tss_get(tss_t key)
{
return pthread_getspecific(key);
}
int
tss_set(tss_t key, void *val)
{
if (pthread_setspecific(key, val) == 0)
return thrd_success;
return thrd_error;
}