1 /* init.c - initialize ldbm backend */
4 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
5 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
12 #include <ac/string.h>
13 #include <ac/socket.h>
16 #include "back-ldbm.h"
18 #ifdef SLAPD_LDBM_DYNAMIC
20 int back_ldbm_LTX_init_module(int argc, char *argv[]) {
23 memset( &bi, '\0', sizeof(bi) );
25 bi.bi_init = ldbm_back_initialize;
31 #endif /* SLAPD_LDBM_DYNAMIC */
38 static char *controls[] = {
39 LDAP_CONTROL_MANAGEDSAIT,
40 LDAP_CONTROL_VALUESRETURNFILTER,
44 bi->bi_controls = controls;
46 bi->bi_open = ldbm_back_open;
48 bi->bi_close = ldbm_back_close;
49 bi->bi_destroy = ldbm_back_destroy;
51 bi->bi_db_init = ldbm_back_db_init;
52 bi->bi_db_config = ldbm_back_db_config;
53 bi->bi_db_open = ldbm_back_db_open;
54 bi->bi_db_close = ldbm_back_db_close;
55 bi->bi_db_destroy = ldbm_back_db_destroy;
57 bi->bi_op_bind = ldbm_back_bind;
59 bi->bi_op_search = ldbm_back_search;
60 bi->bi_op_compare = ldbm_back_compare;
61 bi->bi_op_modify = ldbm_back_modify;
62 bi->bi_op_modrdn = ldbm_back_modrdn;
63 bi->bi_op_add = ldbm_back_add;
64 bi->bi_op_delete = ldbm_back_delete;
65 bi->bi_op_abandon = 0;
67 bi->bi_extended = ldbm_back_extended;
69 bi->bi_entry_release_rw = ldbm_back_entry_release_rw;
70 bi->bi_entry_get_rw = ldbm_back_entry_get;
71 bi->bi_chk_referrals = ldbm_back_referrals;
72 bi->bi_operational = ldbm_back_operational;
73 bi->bi_has_subordinates = ldbm_back_hasSubordinates;
76 * hooks for slap tools
78 bi->bi_tool_entry_open = ldbm_tool_entry_open;
79 bi->bi_tool_entry_close = ldbm_tool_entry_close;
80 bi->bi_tool_entry_first = ldbm_tool_entry_first;
81 bi->bi_tool_entry_next = ldbm_tool_entry_next;
82 bi->bi_tool_entry_get = ldbm_tool_entry_get;
83 bi->bi_tool_entry_put = ldbm_tool_entry_put;
84 bi->bi_tool_entry_reindex = ldbm_tool_entry_reindex;
85 bi->bi_tool_sync = ldbm_tool_sync;
87 bi->bi_connection_init = 0;
88 bi->bi_connection_destroy = 0;
108 /* initialize the underlying database system */
109 rc = ldbm_initialize( NULL );
118 /* terminate the underlying database system */
130 /* indicate system schema supported */
133 SLAP_BFLAG_REFERRALS;
135 /* allocate backend-database-specific stuff */
136 li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
138 /* arrange to read nextid later (on first request for it) */
139 li->li_nextid = NOID;
141 /* default cache size */
142 li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
144 /* default database cache size */
145 li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
147 /* default db mode is with locking */
148 li->li_dblocking = 1;
150 /* default db mode is with write synchronization */
151 li->li_dbwritesync = 1;
153 /* default file creation mode */
154 li->li_mode = SLAPD_DEFAULT_DB_MODE;
156 /* default database directory */
157 li->li_directory = ch_strdup( SLAPD_DEFAULT_DB_DIR );
159 /* DB_ENV environment pointer for DB3 */
162 /* envdirok is turned on by ldbm_initialize_env if DB3 */
165 /* syncfreq is 0 if disabled, or # seconds */
166 li->li_dbsyncfreq = 0;
168 /* wait up to dbsyncwaitn times if server is busy */
169 li->li_dbsyncwaitn = 12;
172 li->li_dbsyncwaitinterval = 5;
174 /* flag to notify ldbm_cache_sync_daemon to shut down */
175 li->li_dbshutdown = 0;
177 /* initialize various mutex locks & condition variables */
178 ldap_pvt_thread_rdwr_init( &li->li_giant_rwlock );
179 ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex );
180 ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex );
181 ldap_pvt_thread_cond_init( &li->li_dbcache_cv );
193 struct ldbminfo *li = (struct ldbminfo *) be->be_private;
194 li->li_dbenv = ldbm_initialize_env( li->li_directory,
195 li->li_dbcachesize, &li->li_envdirok );
198 if ( li->li_dbsyncfreq > 0 )
201 rc = ldap_pvt_thread_create( &li->li_dbsynctid,
202 0, ldbm_cache_sync_daemon, (void*)be );
207 LDAP_LOG ( BACK_LDBM, ERR, "ldbm_back_db_open: sync "
208 "ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
210 Debug( LDAP_DEBUG_ANY,
211 "sync ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
221 ldbm_back_db_destroy(
225 /* should free/destroy every in be_private */
226 struct ldbminfo *li = (struct ldbminfo *) be->be_private;
229 ldbm_shutdown_env(li->li_dbenv);
231 free( li->li_directory );
232 attr_index_destroy( li->li_attrs );
234 ldap_pvt_thread_rdwr_destroy( &li->li_giant_rwlock );
235 ldap_pvt_thread_mutex_destroy( &li->li_cache.c_mutex );
236 ldap_pvt_thread_mutex_destroy( &li->li_dbcache_mutex );
237 ldap_pvt_thread_cond_destroy( &li->li_dbcache_cv );
239 free( be->be_private );
240 be->be_private = NULL;