source: rtems-libbsd/freebsd/lib/libc/include/nss_tls.h @ f41a394

55-freebsd-126-freebsd-12freebsd-9.3
Last change on this file since f41a394 was bceabc9, checked in by Sebastian Huber <sebastian.huber@…>, on 10/09/13 at 20:42:09

Move files to match FreeBSD layout
  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*-
2 * Copyright (c) 2003 Networks Associates Technology, Inc.
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by
6 * Jacques A. Vidrine, Safeport Network Services, and Network
7 * Associates Laboratories, the Security Research Division of Network
8 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
9 * ("CBOSS"), as part of the DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD$
33 *
34 * Macros which generate thread local storage handling code in NSS modules.
35 */
36#ifndef _NSS_TLS_H_
37#define _NSS_TLS_H_
38
39#define NSS_TLS_HANDLING(name)                                  \
40static pthread_key_t name##_state_key;                          \
41static  void     name##_keyinit(void);                          \
42static  int      name##_getstate(struct name##_state **);       \
43\
44static void                                                             \
45name##_keyinit(void)                                                    \
46{                                                                       \
47        (void)_pthread_key_create(&name##_state_key, name##_endstate);  \
48}                                                                       \
49\
50static int                                                      \
51name##_getstate(struct name##_state **p)                        \
52{                                                               \
53        static pthread_once_t   keyinit = PTHREAD_ONCE_INIT;    \
54        int                     rv;                             \
55                                                                \
56        rv = _pthread_once(&keyinit, name##_keyinit);           \
57        if (rv != 0)                                            \
58                return (rv);                                    \
59        *p = _pthread_getspecific(name##_state_key);            \
60        if (*p != NULL)                                         \
61                return (0);                                     \
62        *p = calloc(1, sizeof(**p));                            \
63        if (*p == NULL)                                         \
64                return (ENOMEM);                                \
65        rv = _pthread_setspecific(name##_state_key, *p);        \
66        if (rv != 0) {                                          \
67                free(*p);                                       \
68                *p = NULL;                                      \
69        }                                                       \
70        return (rv);                                            \
71}                                                               \
72/* allow the macro invocation to end with a semicolon */        \
73struct _clashproof_bmVjdGFy
74
75#endif /* _NSS_TLS_H_ */
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