source: rtems-libbsd/freebsd-userspace/lib/libc/include/nss_tls.h @ 1b13f69

4.1155-freebsd-126-freebsd-12freebsd-9.3
Last change on this file since 1b13f69 was 1b13f69, checked in by Joel Sherrill <joel.sherrill@…>, on 07/11/12 at 18:23:45

FreeBSD user space support - First additions

This requires a full checkout of the FreeBSD 8.2 source code.
The checkout we have been using is missing at least the libc,
include, and sys directories. The script to copy files in is
crude.

This eventually needs to separate the manually written .h files
out and add the RTEMS specific network initialization support
with functionality to program the IP addresses and gateways as
the old stack did.
  • Property mode set to 100644
File size: 2.9 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 struct name##_state st;                          \
54        static pthread_once_t   keyinit = PTHREAD_ONCE_INIT;    \
55        int                     rv;                             \
56                                                                \
57        if (!__isthreaded || _pthread_main_np() != 0) {         \
58                *p = &st;                                       \
59                return (0);                                     \
60        }                                                       \
61        rv = _pthread_once(&keyinit, name##_keyinit);           \
62        if (rv != 0)                                            \
63                return (rv);                                    \
64        *p = _pthread_getspecific(name##_state_key);            \
65        if (*p != NULL)                                         \
66                return (0);                                     \
67        *p = calloc(1, sizeof(**p));                            \
68        if (*p == NULL)                                         \
69                return (ENOMEM);                                \
70        rv = _pthread_setspecific(name##_state_key, *p);        \
71        if (rv != 0) {                                          \
72                free(*p);                                       \
73                *p = NULL;                                      \
74        }                                                       \
75        return (rv);                                            \
76}                                                               \
77/* allow the macro invocation to end with a semicolon */        \
78struct _clashproof_bmVjdGFy
79
80#endif /* _NSS_TLS_H_ */
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