1113595Snectar/*- 2113595Snectar * Copyright (c) 2003 Networks Associates Technology, Inc. 3113595Snectar * All rights reserved. 4113595Snectar * 5113595Snectar * This software was developed for the FreeBSD Project by 6113595Snectar * Jacques A. Vidrine, Safeport Network Services, and Network 7113595Snectar * Associates Laboratories, the Security Research Division of Network 8113595Snectar * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 9113595Snectar * ("CBOSS"), as part of the DARPA CHATS research program. 10113595Snectar * 11113595Snectar * Redistribution and use in source and binary forms, with or without 12113595Snectar * modification, are permitted provided that the following conditions 13113595Snectar * are met: 14113595Snectar * 1. Redistributions of source code must retain the above copyright 15113595Snectar * notice, this list of conditions and the following disclaimer. 16113595Snectar * 2. Redistributions in binary form must reproduce the above copyright 17113595Snectar * notice, this list of conditions and the following disclaimer in the 18113595Snectar * documentation and/or other materials provided with the distribution. 19113595Snectar * 20113595Snectar * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21113595Snectar * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22113595Snectar * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23113595Snectar * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24113595Snectar * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25113595Snectar * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26113595Snectar * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27113595Snectar * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28113595Snectar * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29113595Snectar * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30113595Snectar * SUCH DAMAGE. 31113595Snectar * 32113595Snectar * $FreeBSD$ 33113595Snectar * 34113595Snectar * Macros which generate thread local storage handling code in NSS modules. 35113595Snectar */ 36113595Snectar#ifndef _NSS_TLS_H_ 37113595Snectar#define _NSS_TLS_H_ 38113595Snectar 39113595Snectar#define NSS_TLS_HANDLING(name) \ 40113595Snectarstatic pthread_key_t name##_state_key; \ 41113595Snectarstatic void name##_keyinit(void); \ 42113595Snectarstatic int name##_getstate(struct name##_state **); \ 43113595Snectar\ 44113595Snectarstatic void \ 45113595Snectarname##_keyinit(void) \ 46113595Snectar{ \ 47113595Snectar (void)_pthread_key_create(&name##_state_key, name##_endstate); \ 48113595Snectar} \ 49113595Snectar\ 50113595Snectarstatic int \ 51113595Snectarname##_getstate(struct name##_state **p) \ 52113595Snectar{ \ 53113595Snectar static struct name##_state st; \ 54113595Snectar static pthread_once_t keyinit = PTHREAD_ONCE_INIT; \ 55113595Snectar int rv; \ 56113595Snectar \ 57113595Snectar if (!__isthreaded || _pthread_main_np() != 0) { \ 58113595Snectar *p = &st; \ 59113595Snectar return (0); \ 60113595Snectar } \ 61113595Snectar rv = _pthread_once(&keyinit, name##_keyinit); \ 62113595Snectar if (rv != 0) \ 63113595Snectar return (rv); \ 64113595Snectar *p = _pthread_getspecific(name##_state_key); \ 65113595Snectar if (*p != NULL) \ 66113595Snectar return (0); \ 67113798Snectar *p = calloc(1, sizeof(**p)); \ 68113595Snectar if (*p == NULL) \ 69113595Snectar return (ENOMEM); \ 70113595Snectar rv = _pthread_setspecific(name##_state_key, *p); \ 71113595Snectar if (rv != 0) { \ 72113595Snectar free(*p); \ 73113595Snectar *p = NULL; \ 74113595Snectar } \ 75113595Snectar return (rv); \ 76113595Snectar} \ 77113595Snectar/* allow the macro invocation to end with a semicolon */ \ 78127625Snectarstruct _clashproof_bmVjdGFy 79113595Snectar 80113595Snectar#endif /* _NSS_TLS_H_ */ 81