X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fback-ldbm%2Finit.c;h=953df87be9dea361b013f1e53916112c602252fc;hb=324431062bff39a1bd3969bd37d4913526dd583f;hp=8c46a6510dcddc76fe39f575c8b0ab577c19387e;hpb=47f9f7e79dafc7598f7eebe1c7ef6c4234674a66;p=openldap diff --git a/servers/slapd/back-ldbm/init.c b/servers/slapd/back-ldbm/init.c index 8c46a6510d..953df87be9 100644 --- a/servers/slapd/back-ldbm/init.c +++ b/servers/slapd/back-ldbm/init.c @@ -1,4 +1,18 @@ /* init.c - initialize ldbm backend */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software . + * + * Copyright 1998-2006 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * . + */ #include "portable.h" @@ -9,14 +23,29 @@ #include "slap.h" #include "back-ldbm.h" +#include int ldbm_back_initialize( BackendInfo *bi ) { + static char *controls[] = { + LDAP_CONTROL_MANAGEDSAIT, + LDAP_CONTROL_X_PERMISSIVE_MODIFY, + NULL + }; + + bi->bi_controls = controls; + + bi->bi_flags |= + SLAP_BFLAG_INCREMENT | + SLAP_BFLAG_SUBENTRIES | + SLAP_BFLAG_ALIASES | + SLAP_BFLAG_REFERRALS; + bi->bi_open = ldbm_back_open; - bi->bi_config = 0; + bi->bi_config = NULL; bi->bi_close = ldbm_back_close; bi->bi_destroy = ldbm_back_destroy; @@ -27,18 +56,41 @@ ldbm_back_initialize( bi->bi_db_destroy = ldbm_back_db_destroy; bi->bi_op_bind = ldbm_back_bind; - bi->bi_op_unbind = ldbm_back_unbind; + bi->bi_op_unbind = 0; bi->bi_op_search = ldbm_back_search; bi->bi_op_compare = ldbm_back_compare; bi->bi_op_modify = ldbm_back_modify; bi->bi_op_modrdn = ldbm_back_modrdn; bi->bi_op_add = ldbm_back_add; bi->bi_op_delete = ldbm_back_delete; - bi->bi_op_abandon = ldbm_back_abandon; + bi->bi_op_abandon = 0; + + bi->bi_extended = ldbm_back_extended; -#ifdef SLAPD_ACLGROUPS - bi->bi_acl_group = ldbm_back_group; -#endif + bi->bi_entry_release_rw = ldbm_back_entry_release_rw; + bi->bi_entry_get_rw = ldbm_back_entry_get; + bi->bi_chk_referrals = ldbm_back_referrals; + bi->bi_operational = ldbm_back_operational; + bi->bi_has_subordinates = ldbm_back_hasSubordinates; + + /* + * hooks for slap tools + */ + bi->bi_tool_entry_open = ldbm_tool_entry_open; + bi->bi_tool_entry_close = ldbm_tool_entry_close; + bi->bi_tool_entry_first = ldbm_tool_entry_first; + bi->bi_tool_entry_next = ldbm_tool_entry_next; + bi->bi_tool_entry_get = ldbm_tool_entry_get; + bi->bi_tool_entry_put = ldbm_tool_entry_put; + bi->bi_tool_entry_reindex = ldbm_tool_entry_reindex; + bi->bi_tool_sync = ldbm_tool_sync; + + bi->bi_tool_dn2id_get = 0; + bi->bi_tool_id2entry_get = 0; + bi->bi_tool_entry_modify = 0; + + bi->bi_connection_init = 0; + bi->bi_connection_destroy = 0; return 0; } @@ -59,8 +111,7 @@ ldbm_back_open( int rc; /* initialize the underlying database system */ - rc = ldbm_initialize(); - + rc = ldbm_initialize( NULL ); return rc; } @@ -71,7 +122,6 @@ ldbm_back_close( { /* terminate the underlying database system */ ldbm_shutdown(); - return 0; } @@ -81,7 +131,6 @@ ldbm_back_db_init( ) { struct ldbminfo *li; - char *argv[ 4 ]; /* allocate backend-database-specific stuff */ li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) ); @@ -89,52 +138,45 @@ ldbm_back_db_init( /* arrange to read nextid later (on first request for it) */ li->li_nextid = NOID; -#if SLAPD_NEXTID_CHUNK > 1 - li->li_nextid_wrote = NOID; -#endif - /* default cache size */ li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE; /* default database cache size */ li->li_dbcachesize = DEFAULT_DBCACHE_SIZE; - /* default cache mode is sync on write */ - li->li_dbcachewsync = 1; + /* default db mode is with locking */ + li->li_dblocking = 1; + + /* default db mode is with write synchronization */ + li->li_dbwritesync = 1; /* default file creation mode */ - li->li_mode = DEFAULT_MODE; + li->li_mode = SLAPD_DEFAULT_DB_MODE; /* default database directory */ - li->li_directory = DEFAULT_DB_DIRECTORY; - - /* always index dn, id2children, objectclass (used in some searches) */ - argv[ 0 ] = "dn"; - argv[ 1 ] = "dn"; - argv[ 2 ] = NULL; - attr_syntax_config( "ldbm dn initialization", 0, 2, argv ); - argv[ 0 ] = "dn"; - argv[ 1 ] = "sub"; - argv[ 2 ] = "eq"; - argv[ 3 ] = NULL; - attr_index_config( li, "ldbm dn initialization", 0, 3, argv, 1 ); - argv[ 0 ] = "id2children"; - argv[ 1 ] = "eq"; - argv[ 2 ] = NULL; - attr_index_config( li, "ldbm id2children initialization", 0, 2, argv, - 1 ); - argv[ 0 ] = "objectclass"; - argv[ 1 ] = ch_strdup( "pres,eq" ); - argv[ 2 ] = NULL; - attr_index_config( li, "ldbm objectclass initialization", 0, 2, argv, - 1 ); - free( argv[ 1 ] ); + li->li_directory = ch_strdup( SLAPD_DEFAULT_DB_DIR ); + + /* DB_ENV environment pointer for DB3 */ + li->li_dbenv = 0; + + /* envdirok is turned on by ldbm_initialize_env if DB3 */ + li->li_envdirok = 0; + + /* syncfreq is 0 if disabled, or # seconds */ + li->li_dbsyncfreq = 0; + + /* wait up to dbsyncwaitn times if server is busy */ + li->li_dbsyncwaitn = 12; + + /* delay interval */ + li->li_dbsyncwaitinterval = 5; + + /* current wait counter */ + li->li_dbsyncwaitcount = 0; /* initialize various mutex locks & condition variables */ - ldap_pvt_thread_mutex_init( &li->li_root_mutex ); - ldap_pvt_thread_mutex_init( &li->li_add_mutex ); + ldap_pvt_thread_rdwr_init( &li->li_giant_rwlock ); ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex ); - ldap_pvt_thread_mutex_init( &li->li_nextid_mutex ); ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex ); ldap_pvt_thread_cond_init( &li->li_dbcache_cv ); @@ -148,6 +190,44 @@ ldbm_back_db_open( BackendDB *be ) { + struct ldbminfo *li = (struct ldbminfo *) be->be_private; + int rc; + + rc = alock_open( &li->li_alock_info, "slapd", + li->li_directory, ALOCK_UNIQUE ); + if ( rc == ALOCK_BUSY ) { + Debug( LDAP_DEBUG_ANY, + "ldbm_back_db_open: database already in use\n", + 0, 0, 0 ); + return -1; + } else if ( rc == ALOCK_RECOVER ) { + Debug( LDAP_DEBUG_ANY, + "ldbm_back_db_open: unclean shutdown detected;" + " database may be inconsistent!\n", + 0, 0, 0 ); + rc = alock_recover( &li->li_alock_info ); + } + if ( rc != ALOCK_CLEAN ) { + Debug( LDAP_DEBUG_ANY, + "ldbm_back_db_open: alock package is unstable;" + " database may be inconsistent!\n", + 0, 0, 0 ); + } + li->li_dbenv = ldbm_initialize_env( li->li_directory, + li->li_dbcachesize, &li->li_envdirok ); + + /* If we're in server mode and a sync frequency was set, + * submit a task to perform periodic db syncs. + */ + if (( slapMode & SLAP_SERVER_MODE ) && li->li_dbsyncfreq > 0 ) + { + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + ldap_pvt_runqueue_insert( &slapd_rq, li->li_dbsyncfreq, + ldbm_cache_sync_daemon, be, + "ldbm_cache_sync", be->be_suffix[0].bv_val ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + } + return 0; } @@ -157,7 +237,30 @@ ldbm_back_db_destroy( ) { /* should free/destroy every in be_private */ + struct ldbminfo *li = (struct ldbminfo *) be->be_private; + + if (li->li_dbenv) + ldbm_shutdown_env(li->li_dbenv); + + free( li->li_directory ); + attr_index_destroy( li->li_attrs ); + + ldap_pvt_thread_rdwr_destroy( &li->li_giant_rwlock ); + ldap_pvt_thread_mutex_destroy( &li->li_cache.c_mutex ); + ldap_pvt_thread_mutex_destroy( &li->li_dbcache_mutex ); + ldap_pvt_thread_cond_destroy( &li->li_dbcache_cv ); + free( be->be_private ); be->be_private = NULL; + return 0; } + +#if SLAPD_LDBM == SLAPD_MOD_DYNAMIC + +/* conditionally define the init_module() function */ +SLAP_BACKEND_INIT_MODULE( ldbm ) + +#endif /* SLAPD_LDBM == SLAPD_MOD_DYNAMIC */ + +