/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * 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.
 *
 * 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 */        \
struct _clashproof_bmVjdGFy

#endif /* _NSS_TLS_H_ */