1 /* init.c - initialize ldbm backend */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2005 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
21 #include <ac/string.h>
22 #include <ac/socket.h>
25 #include "back-ldbm.h"
32 static char *controls[] = {
33 LDAP_CONTROL_MANAGEDSAIT,
34 #ifdef LDAP_CONTROL_X_PERMISSIVE_MODIFY
35 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
40 bi->bi_controls = controls;
43 SLAP_BFLAG_INCREMENT |
44 #ifdef LDBM_SUBENTRIES
45 SLAP_BFLAG_SUBENTRIES |
50 bi->bi_open = ldbm_back_open;
52 bi->bi_close = ldbm_back_close;
53 bi->bi_destroy = ldbm_back_destroy;
55 bi->bi_db_init = ldbm_back_db_init;
56 bi->bi_db_config = ldbm_back_db_config;
57 bi->bi_db_open = ldbm_back_db_open;
58 bi->bi_db_close = ldbm_back_db_close;
59 bi->bi_db_destroy = ldbm_back_db_destroy;
61 bi->bi_op_bind = ldbm_back_bind;
63 bi->bi_op_search = ldbm_back_search;
64 bi->bi_op_compare = ldbm_back_compare;
65 bi->bi_op_modify = ldbm_back_modify;
66 bi->bi_op_modrdn = ldbm_back_modrdn;
67 bi->bi_op_add = ldbm_back_add;
68 bi->bi_op_delete = ldbm_back_delete;
69 bi->bi_op_abandon = 0;
71 bi->bi_extended = ldbm_back_extended;
73 bi->bi_entry_release_rw = ldbm_back_entry_release_rw;
74 bi->bi_entry_get_rw = ldbm_back_entry_get;
75 bi->bi_chk_referrals = ldbm_back_referrals;
76 bi->bi_operational = ldbm_back_operational;
77 bi->bi_has_subordinates = ldbm_back_hasSubordinates;
80 * hooks for slap tools
82 bi->bi_tool_entry_open = ldbm_tool_entry_open;
83 bi->bi_tool_entry_close = ldbm_tool_entry_close;
84 bi->bi_tool_entry_first = ldbm_tool_entry_first;
85 bi->bi_tool_entry_next = ldbm_tool_entry_next;
86 bi->bi_tool_entry_get = ldbm_tool_entry_get;
87 bi->bi_tool_entry_put = ldbm_tool_entry_put;
88 bi->bi_tool_entry_reindex = ldbm_tool_entry_reindex;
89 bi->bi_tool_sync = ldbm_tool_sync;
91 bi->bi_tool_dn2id_get = 0;
92 bi->bi_tool_id2entry_get = 0;
93 bi->bi_tool_entry_modify = 0;
95 bi->bi_connection_init = 0;
96 bi->bi_connection_destroy = 0;
116 /* initialize the underlying database system */
117 rc = ldbm_initialize( NULL );
126 /* terminate the underlying database system */
138 /* allocate backend-database-specific stuff */
139 li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
141 /* arrange to read nextid later (on first request for it) */
142 li->li_nextid = NOID;
144 /* default cache size */
145 li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
147 /* default database cache size */
148 li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
150 /* default db mode is with locking */
151 li->li_dblocking = 1;
153 /* default db mode is with write synchronization */
154 li->li_dbwritesync = 1;
156 /* default file creation mode */
157 li->li_mode = SLAPD_DEFAULT_DB_MODE;
159 /* default database directory */
160 li->li_directory = ch_strdup( SLAPD_DEFAULT_DB_DIR );
162 /* DB_ENV environment pointer for DB3 */
165 /* envdirok is turned on by ldbm_initialize_env if DB3 */
168 /* syncfreq is 0 if disabled, or # seconds */
169 li->li_dbsyncfreq = 0;
171 /* wait up to dbsyncwaitn times if server is busy */
172 li->li_dbsyncwaitn = 12;
175 li->li_dbsyncwaitinterval = 5;
177 /* flag to notify ldbm_cache_sync_daemon to shut down */
178 li->li_dbshutdown = 0;
180 /* initialize various mutex locks & condition variables */
181 ldap_pvt_thread_rdwr_init( &li->li_giant_rwlock );
182 ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex );
183 ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex );
184 ldap_pvt_thread_cond_init( &li->li_dbcache_cv );
196 struct ldbminfo *li = (struct ldbminfo *) be->be_private;
197 li->li_dbenv = ldbm_initialize_env( li->li_directory,
198 li->li_dbcachesize, &li->li_envdirok );
201 if ( li->li_dbsyncfreq > 0 )
204 rc = ldap_pvt_thread_create( &li->li_dbsynctid,
205 0, ldbm_cache_sync_daemon, (void*)be );
209 Debug( LDAP_DEBUG_ANY,
210 "sync ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
219 ldbm_back_db_destroy(
223 /* should free/destroy every in be_private */
224 struct ldbminfo *li = (struct ldbminfo *) be->be_private;
227 ldbm_shutdown_env(li->li_dbenv);
229 free( li->li_directory );
230 attr_index_destroy( li->li_attrs );
232 ldap_pvt_thread_rdwr_destroy( &li->li_giant_rwlock );
233 ldap_pvt_thread_mutex_destroy( &li->li_cache.c_mutex );
234 ldap_pvt_thread_mutex_destroy( &li->li_dbcache_mutex );
235 ldap_pvt_thread_cond_destroy( &li->li_dbcache_cv );
237 free( be->be_private );
238 be->be_private = NULL;
243 #if SLAPD_LDBM == SLAPD_MOD_DYNAMIC
245 /* conditionally define the init_module() function */
246 SLAP_BACKEND_INIT_MODULE( ldbm )
248 #endif /* SLAPD_LDBM == SLAPD_MOD_DYNAMIC */