83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* $NetBSD: pthread_specific.c,v 1.20 2008/04/28 20:23:01 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001, 2007 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Nathan J. Williams.
|
|
*
|
|
* 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: pthread_specific.c,v 1.20 2008/04/28 20:23:01 martin Exp $");
|
|
|
|
/* Functions and structures dealing with thread-specific data */
|
|
|
|
#include "pthread.h"
|
|
#include "pthread_int.h"
|
|
|
|
#include <sys/lwpctl.h>
|
|
|
|
__strong_alias(__libc_thr_setspecific,pthread_setspecific)
|
|
__strong_alias(__libc_thr_getspecific,pthread_getspecific)
|
|
__strong_alias(__libc_thr_curcpu,pthread_curcpu_np)
|
|
|
|
int
|
|
pthread_setspecific(pthread_key_t key, const void *value)
|
|
{
|
|
pthread_t self;
|
|
|
|
self = pthread__self();
|
|
/*
|
|
* We can't win here on constness. Having been given a
|
|
* "const void *", we can only assign it to other const void *,
|
|
* and return it from functions that are const void *, without
|
|
* generating a warning.
|
|
*/
|
|
/*LINTED const cast*/
|
|
self->pt_specific[key] = (void *) value;
|
|
self->pt_havespecific = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void *
|
|
pthread_getspecific(pthread_key_t key)
|
|
{
|
|
|
|
return pthread__self()->pt_specific[key];
|
|
}
|
|
|
|
unsigned int
|
|
pthread_curcpu_np(void)
|
|
{
|
|
unsigned int cpu = pthread__self()->pt_lwpctl->lc_curcpu;
|
|
|
|
/* for pthread__dummy_lwpctl */
|
|
if (cpu == (unsigned int)LWPCTL_CPU_NONE)
|
|
return 0;
|
|
|
|
return cpu;
|
|
}
|