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/*-
* Copyright (c) 2003 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by
* Jacques A. Vidrine, Safeport Network Services, and Network
* Associates Laboratories, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*
* Macros which generate thread local storage handling code in NSS modules.
*/
#ifndef _NSS_TLS_H_
#define _NSS_TLS_H_
#define NSS_TLS_HANDLING(name) \
static pthread_key_t name##_state_key; \
static void name##_keyinit(void); \
static int name##_getstate(struct name##_state **); \
\
static void \
name##_keyinit(void) \
{ \
(void)_pthread_key_create(&name##_state_key, name##_endstate); \
} \
\
static int \
name##_getstate(struct name##_state **p) \
{ \
static struct name##_state st; \
static pthread_once_t keyinit = PTHREAD_ONCE_INIT; \
int rv; \
\
if (!__isthreaded || _pthread_main_np() != 0) { \
*p = &st; \
return (0); \
} \
rv = _pthread_once(&keyinit, name##_keyinit); \
if (rv != 0) \
return (rv); \
*p = _pthread_getspecific(name##_state_key); \
if (*p != NULL) \
return (0); \
*p = calloc(1, sizeof(*p)); \
if (*p == NULL) \
return (ENOMEM); \
rv = _pthread_setspecific(name##_state_key, *p); \
if (rv != 0) { \
free(*p); \
*p = NULL; \
} \
return (rv); \
} \
/* allow the macro invocation to end with a semicolon */ \
typedef int _##name##_bmVjdGFy
#endif /* _NSS_TLS_H_ */
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