mt_misc.c revision 1.6
1 /* $NetBSD: mt_misc.c,v 1.6 2008/04/25 17:44:44 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Define and initialize MT data for libnsl. 41 * The _libnsl_lock_init() function below is the library's .init handler. 42 */ 43 44 /* #pragma ident "@(#)mt_misc.c 1.24 93/04/29 SMI" */ 45 46 #include <sys/cdefs.h> 47 #if defined(LIBC_SCCS) && !defined(lint) 48 __RCSID("$NetBSD: mt_misc.c,v 1.6 2008/04/25 17:44:44 christos Exp $"); 49 #endif 50 51 #include "namespace.h" 52 #include "reentrant.h" 53 #include <rpc/rpc.h> 54 #include <sys/time.h> 55 #include <stdlib.h> 56 #include <string.h> 57 58 #ifdef _REENTRANT 59 60 /* protects the services list (svc.c) */ 61 rwlock_t svc_lock = RWLOCK_INITIALIZER; 62 /* protects svc_fdset and the xports[] array */ 63 rwlock_t svc_fd_lock = RWLOCK_INITIALIZER; 64 /* protects the RPCBIND address cache */ 65 rwlock_t rpcbaddr_cache_lock = RWLOCK_INITIALIZER; 66 67 /* protects authdes cache (svcauth_des.c) */ 68 mutex_t authdes_lock = MUTEX_INITIALIZER; 69 /* auth_none.c serialization */ 70 mutex_t authnone_lock = MUTEX_INITIALIZER; 71 /* protects the Auths list (svc_auth.c) */ 72 mutex_t authsvc_lock = MUTEX_INITIALIZER; 73 /* protects client-side fd lock array */ 74 mutex_t clnt_fd_lock = MUTEX_INITIALIZER; 75 /* clnt_raw.c serialization */ 76 mutex_t clntraw_lock = MUTEX_INITIALIZER; 77 /* domainname and domain_fd (getdname.c) and default_domain (rpcdname.c) */ 78 mutex_t dname_lock = MUTEX_INITIALIZER; 79 /* dupreq variables (svc_dg.c) */ 80 mutex_t dupreq_lock = MUTEX_INITIALIZER; 81 /* protects first_time and hostname (key_call.c) */ 82 mutex_t keyserv_lock = MUTEX_INITIALIZER; 83 /* serializes rpc_trace() (rpc_trace.c) */ 84 mutex_t libnsl_trace_lock = MUTEX_INITIALIZER; 85 /* loopnconf (rpcb_clnt.c) */ 86 mutex_t loopnconf_lock = MUTEX_INITIALIZER; 87 /* serializes ops initializations */ 88 mutex_t ops_lock = MUTEX_INITIALIZER; 89 /* protects ``port'' static in bindresvport() */ 90 mutex_t portnum_lock = MUTEX_INITIALIZER; 91 /* protects proglst list (svc_simple.c) */ 92 mutex_t proglst_lock = MUTEX_INITIALIZER; 93 /* serializes clnt_com_create() (rpc_soc.c) */ 94 mutex_t rpcsoc_lock = MUTEX_INITIALIZER; 95 /* svc_raw.c serialization */ 96 mutex_t svcraw_lock = MUTEX_INITIALIZER; 97 /* xprtlist (svc_generic.c) */ 98 mutex_t xprtlist_lock = MUTEX_INITIALIZER; 99 /* serializes calls to public key routines */ 100 mutex_t serialize_pkey = MUTEX_INITIALIZER; 101 102 #endif /* _REENTRANT */ 103 104 105 #undef rpc_createerr 106 107 struct rpc_createerr rpc_createerr; 108 109 #ifdef _REENTRANT 110 static thread_key_t rce_key; 111 static once_t rce_once = ONCE_INITIALIZER; 112 113 static void 114 __rpc_createerr_setup(void) 115 { 116 117 thr_keycreate(&rce_key, free); 118 } 119 #endif /* _REENTRANT */ 120 121 struct rpc_createerr* 122 __rpc_createerr() 123 { 124 #ifdef _REENTRANT 125 struct rpc_createerr *rce_addr = 0; 126 extern int __isthreaded; 127 128 if (__isthreaded == 0) 129 return (&rpc_createerr); 130 thr_once(&rce_once, __rpc_createerr_setup); 131 rce_addr = thr_getspecific(rce_key); 132 if (rce_addr == NULL) { 133 rce_addr = malloc(sizeof(*rce_addr)); 134 if (rce_addr == NULL) 135 return &rpc_createerr; 136 thr_setspecific(rce_key, (void *) rce_addr); 137 memset(rce_addr, 0, sizeof (struct rpc_createerr)); 138 } 139 140 return (rce_addr); 141 #else 142 return &rpc_createerr; 143 #endif 144 } 145 146
Indexes created Tue Sep 30 20:09:53 GMT 2025