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 #include "nisdb_mt.h" 28 #include "nisdb_rw.h" 29 30 #include "db_headers.h" 31 #include "db_entry.h" 32 #include "db.h" 33 #include "db_dictionary.h" 34 35 36 static nisdb_tsd_t nisdb_shared_tsd; 37 static pthread_key_t nisdb_tsd_key; 38 39 void 40 __nisdb_tsd_destroy(void *key) { 41 42 nisdb_tsd_t *tsd = (nisdb_tsd_t *)key; 43 44 if (tsd != 0) { 45 free(tsd); 46 } 47 } 48 49 extern "C" { 50 static void 51 __nisdb_init_tsd_key(void) 52 { 53 (void) pthread_key_create(&nisdb_tsd_key, __nisdb_tsd_destroy); 54 } 55 #pragma init(__nisdb_init_tsd_key) 56 } 57 58 nisdb_tsd_t * 59 __nisdb_get_tsd(void) { 60 61 nisdb_tsd_t *tsd; 62 63 if ((tsd = (nisdb_tsd_t *)pthread_getspecific(nisdb_tsd_key)) == 0) { 64 /* No TSD; create it */ 65 if ((tsd = (nisdb_tsd_t *)malloc(sizeof (*tsd))) != 0) { 66 /* Initialize TSD */ 67 memset(tsd, 0, sizeof (*tsd)); 68 /* Register TSD */ 69 if (pthread_setspecific(nisdb_tsd_key, tsd) != 0) { 70 /* Can't store key */ 71 #ifdef NISDB_MT_DEBUG 72 abort(); 73 #endif 74 free(tsd); 75 tsd = &nisdb_shared_tsd; 76 } 77 } else { 78 /* No memory ? */ 79 #ifdef NISDB_MT_DEBUG 80 abort(); 81 #endif 82 tsd = &nisdb_shared_tsd; 83 } 84 } 85 86 return (tsd); 87 } 88 89 void 90 setMappingStatus(int nisPlusStat, int ldapStat) { 91 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 92 93 if (tsd != 0) { 94 tsd->nisPlusStat = nisPlusStat; 95 tsd->ldapStat = ldapStat; 96 } 97 } 98 99 /* 100 * Save a copy of 'obj' in the TSD. If the TSD already holds an old object, 101 * delete it before saving the new one. 102 * 103 * On successful exit, '*storedP' indicates whether or not the entry was 104 * stored, and hence whether or not we're perfroming a modify operation. 105 * 106 * Return 1 if successful, 0 otherwise. 107 */ 108 int 109 saveOldObjForModify(entry_obj *obj, int *storedP) { 110 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 111 int stored; 112 113 if (tsd == 0) 114 return (0); 115 116 if ((stored = tsd->doingModify) != 0) { 117 entry_object *eObj = tsd->oldObj; 118 119 if (eObj != 0) { 120 free_entry(eObj); 121 tsd->oldObj = 0; 122 } 123 124 if (obj != 0) { 125 eObj = new_entry((entry_object *)obj); 126 if (eObj == 0) 127 return (0); 128 } else { 129 eObj = 0; 130 } 131 132 tsd->oldObj = (entry_obj *)eObj; 133 } 134 135 if (storedP != 0) 136 *storedP = stored; 137 138 return (1); 139 } 140 141 /* 142 * Retrieve (and remove) the old object (if any) from the TSD. Returns 1 143 * if successful ('*oldObjP' might be NULL), 0 otherwise ('*oldObjP' 144 * unchanged). 145 */ 146 int 147 retrieveOldObjForModify(entry_obj **oldObjP) { 148 nisdb_tsd_t *tsd = __nisdb_get_tsd(); 149 150 if (tsd == 0 || oldObjP == 0) 151 return (0); 152 153 if (tsd->doingModify) { 154 *oldObjP = tsd->oldObj; 155 tsd->oldObj = 0; 156 } else { 157 *oldObjP = 0; 158 } 159 160 return (1); 161 } 162