1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "nisdb_mt.h" 30 #include "nisdb_rw.h" 31 32 #include "db_headers.h" 33 #include "db_entry.h" 34 #include "db.h" 35 #include "db_dictionary.h" 36 37 38 static nisdb_tsd_t nisdb_shared_tsd; 39 static pthread_key_t nisdb_tsd_key; 40 41 void 42 __nisdb_tsd_destroy(void *key) { 43 44 nisdb_tsd_t *tsd = (nisdb_tsd_t *)key; 45 46 if (tsd != 0) { 47 free(tsd); 48 } 49 } 50 51 extern "C" { 52 static void 53 __nisdb_init_tsd_key(void) 54 { 55 (void) pthread_key_create(&nisdb_tsd_key, __nisdb_tsd_destroy); 56 } 57 #pragma init(__nisdb_init_tsd_key) 58 } 59 60 nisdb_tsd_t * 61 __nisdb_get_tsd(void) { 62 63 nisdb_tsd_t *tsd; 64 65 if ((tsd = (nisdb_tsd_t *)pthread_getspecific(nisdb_tsd_key)) == 0) { 66 /* No TSD; create it */ 67 if ((tsd = (nisdb_tsd_t *)malloc(sizeof (*tsd))) != 0) { 68 /* Initialize TSD */ 69 memset(tsd, 0, sizeof (*tsd)); 70 /* Register TSD */ 71 if (pthread_setspecific(nisdb_tsd_key, tsd) != 0) { 72 /* Can't store key */ 73 #ifdef NISDB_MT_DEBUG 74 abort(); 75 #endif 76 free(tsd); 77 tsd = &nisdb_shared_tsd; 78 } 79 } else { 80 /* No memory ? */ 81 #ifdef NISDB_MT_DEBUG 82 abort(); 83 #endif 84 tsd = &nisdb_shared_tsd; 85 } 86 } 87 88 return (tsd); 89 } 90 91 void 92 setMappingStatus(int nisPlusStat, int ldapStat) { 93 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 94 95 if (tsd != 0) { 96 tsd->nisPlusStat = nisPlusStat; 97 tsd->ldapStat = ldapStat; 98 } 99 } 100 101 /* 102 * Save a copy of 'obj' in the TSD. If the TSD already holds an old object, 103 * delete it before saving the new one. 104 * 105 * On successful exit, '*storedP' indicates whether or not the entry was 106 * stored, and hence whether or not we're perfroming a modify operation. 107 * 108 * Return 1 if successful, 0 otherwise. 109 */ 110 int 111 saveOldObjForModify(entry_obj *obj, int *storedP) { 112 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 113 int stored; 114 115 if (tsd == 0) 116 return (0); 117 118 if ((stored = tsd->doingModify) != 0) { 119 entry_object *eObj = tsd->oldObj; 120 121 if (eObj != 0) { 122 free_entry(eObj); 123 tsd->oldObj = 0; 124 } 125 126 if (obj != 0) { 127 eObj = new_entry((entry_object *)obj); 128 if (eObj == 0) 129 return (0); 130 } else { 131 eObj = 0; 132 } 133 134 tsd->oldObj = (entry_obj *)eObj; 135 } 136 137 if (storedP != 0) 138 *storedP = stored; 139 140 return (1); 141 } 142 143 /* 144 * Retrieve (and remove) the old object (if any) from the TSD. Returns 1 145 * if successful ('*oldObjP' might be NULL), 0 otherwise ('*oldObjP' 146 * unchanged). 147 */ 148 int 149 retrieveOldObjForModify(entry_obj **oldObjP) { 150 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 151 152 if (tsd == 0 || oldObjP == 0) 153 return (0); 154 155 if (tsd->doingModify) { 156 *oldObjP = tsd->oldObj; 157 tsd->oldObj = 0; 158 } else { 159 *oldObjP = 0; 160 } 161 162 return (1); 163 } 164