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Annotation of src/lib/libpthread/pthread_specific.c, Revision 1.12

1.12    ! ad          1: /*     $NetBSD: pthread_specific.c,v 1.11 2007/08/16 12:01:49 ad Exp $ */
1.2       thorpej     2:
                      3: /*-
1.11      ad          4:  * Copyright (c) 2001, 2007 The NetBSD Foundation, Inc.
1.2       thorpej     5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by Nathan J. Williams.
                      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:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *        This product includes software developed by the NetBSD
                     21:  *        Foundation, Inc. and its contributors.
                     22:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     23:  *    contributors may be used to endorse or promote products derived
                     24:  *    from this software without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     27:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     28:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     29:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     30:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     31:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     32:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     33:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     34:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     35:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     36:  * POSSIBILITY OF SUCH DAMAGE.
                     37:  */
                     38:
1.6       lukem      39: #include <sys/cdefs.h>
1.12    ! ad         40: __RCSID("$NetBSD: pthread_specific.c,v 1.11 2007/08/16 12:01:49 ad Exp $");
1.6       lukem      41:
1.2       thorpej    42: /* Functions and structures dealing with thread-specific data */
                     43:
                     44: #include "pthread.h"
                     45: #include "pthread_int.h"
                     46:
                     47: __strong_alias(__libc_thr_setspecific,pthread_setspecific)
                     48: __strong_alias(__libc_thr_getspecific,pthread_getspecific)
                     49:
                     50: int
                     51: pthread_setspecific(pthread_key_t key, const void *value)
                     52: {
                     53:        pthread_t self;
                     54:
                     55:        self = pthread__self();
                     56:        /*
                     57:         * We can't win here on constness. Having been given a
                     58:         * "const void *", we can only assign it to other const void *,
                     59:         * and return it from functions that are const void *, without
                     60:         * generating a warning.
                     61:         */
1.3       christos   62:        /*LINTED const cast*/
1.2       thorpej    63:        self->pt_specific[key] = (void *) value;
1.11      ad         64:        self->pt_havespecific = 1;
1.2       thorpej    65:
                     66:        return 0;
                     67: }
                     68:
1.12    ! ad         69: void *
1.2       thorpej    70: pthread_getspecific(pthread_key_t key)
                     71: {
1.12    ! ad         72:        return pthread__self()->pt_specific[key];
1.2       thorpej    73: }