/* init.c - initialize bdb backend */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2007 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
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
-
+#include <ac/unistd.h>
+#include <ac/stdlib.h>
+#include <ac/errno.h>
+#include <sys/stat.h>
#include "back-bdb.h"
-#include "external.h"
+#include <lutil.h>
+#include <ldap_rq.h>
+#include "alock.h"
-static struct bdbi_database {
+static const struct bdbi_database {
char *file;
char *name;
int type;
int flags;
-} bdbi_databases[BDB_INDICES] = {
- { "nextid", "nextid", DB_BTREE, 0 },
- { "dn2entry", "dn2entry", DB_BTREE, 0 },
- { "id2entry", "id2entry", DB_BTREE, 0 },
+} bdbi_databases[] = {
+ { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
+ { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
+ { NULL, NULL, 0, 0 }
};
-static int
-bdb_destroy( BackendInfo *bi )
-{
- return 0;
-}
-
-static int
-bdb_open( BackendInfo *bi )
-{
- /* initialize the underlying database system */
-
- db_env_set_func_malloc( ch_malloc );
- db_env_set_func_realloc( ch_realloc );
- db_env_set_func_free( ch_free );
- db_env_set_func_yield( ldap_pvt_thread_yield );
- return 0;
-}
+typedef void * db_malloc(size_t);
+typedef void * db_realloc(void *, size_t);
-static int
-bdb_close( BackendInfo *bi )
-{
- /* terminate the underlying database system */
- return 0;
-}
+#define bdb_db_init BDB_SYMBOL(db_init)
+#define bdb_db_open BDB_SYMBOL(db_open)
+#define bdb_db_close BDB_SYMBOL(db_close)
static int
-bdb_db_init( Backend *be )
+bdb_db_init( BackendDB *be )
{
struct bdb_info *bdb;
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_db_init) ": Initializing " BDB_UCTYPE " database\n",
+ 0, 0, 0 );
+
/* allocate backend-database-specific stuff */
bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
/* DBEnv parameters */
- bdb->bi_dbenv_home = ch_strdup( BDB_DBENV_HOME );
+ bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
bdb->bi_dbenv_xflags = 0;
- bdb->bi_dbenv_mode = DEFAULT_MODE;
+ bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
+
+ bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
+ bdb->bi_cache.c_minfree = 1;
+
+ bdb->bi_lock_detect = DB_LOCK_DEFAULT;
+ bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
+ bdb->bi_search_stack = NULL;
+
+ ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
+ ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
+#ifdef BDB_HIER
+ ldap_pvt_thread_mutex_init( &bdb->bi_modrdns_mutex );
+#endif
+ ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_head_mutex );
+ ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_tail_mutex );
+ ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
+ ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
+ ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
+ ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
be->be_private = bdb;
+ be->be_cf_ocs = be->bd_info->bi_cf_ocs;
+
return 0;
}
+static int
+bdb_db_close( BackendDB *be );
+
static int
bdb_db_open( BackendDB *be )
{
int rc, i;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+ struct stat stat1, stat2;
u_int32_t flags;
- /* we should check existance of dbenv_home and db_directory */
+ char path[MAXPATHLEN];
+ char *dbhome;
+ int do_recover = 0, do_alock_recover = 0, open_env = 1;
+ int alockt, quick = 0;
+
+ if ( be->be_suffix == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": need suffix\n",
+ 0, 0, 0 );
+ return -1;
+ }
+
+ Debug( LDAP_DEBUG_ARGS,
+ LDAP_XSTRING(bdb_db_open) ": %s\n",
+ be->be_suffix[0].bv_val, 0, 0 );
+
+#ifndef BDB_MULTIPLE_SUFFIXES
+ if ( be->be_suffix[1].bv_val ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": only one suffix allowed\n", 0, 0, 0 );
+ return -1;
+ }
+#endif
+
+ /* Check existence of dbenv_home. Any error means trouble */
+ rc = stat( bdb->bi_dbenv_home, &stat1 );
+ if( rc !=0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": Cannot access database directory %s (%d)\n",
+ bdb->bi_dbenv_home, errno, 0 );
+ return -1;
+ }
+
+ /* Perform database use arbitration/recovery logic */
+ alockt = (slapMode & SLAP_TOOL_READONLY) ? ALOCK_LOCKED : ALOCK_UNIQUE;
+ if ( slapMode & SLAP_TOOL_QUICK ) {
+ alockt |= ALOCK_NOSAVE;
+ quick = 1;
+ }
+
+ rc = alock_open( &bdb->bi_alock_info,
+ "slapd",
+ bdb->bi_dbenv_home, alockt );
+
+ /* alockt is TRUE if the existing environment was created in Quick mode */
+ alockt = (rc & ALOCK_NOSAVE) ? 1 : 0;
+ rc &= ~ALOCK_NOSAVE;
+
+ if( rc == ALOCK_RECOVER ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": unclean shutdown detected;"
+ " attempting recovery.\n",
+ 0, 0, 0 );
+ do_alock_recover = 1;
+ do_recover = DB_RECOVER;
+ } else if( rc == ALOCK_BUSY ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": database already in use\n",
+ 0, 0, 0 );
+ return -1;
+ } else if( rc != ALOCK_CLEAN ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": alock package is unstable\n",
+ 0, 0, 0 );
+ return -1;
+ }
+
+ /*
+ * The DB_CONFIG file may have changed. If so, recover the
+ * database so that new settings are put into effect. Also
+ * note the possible absence of DB_CONFIG in the log.
+ */
+ if( stat( bdb->bi_db_config_path, &stat1 ) == 0 ) {
+ if ( !do_recover ) {
+ char *ptr = lutil_strcopy(path, bdb->bi_dbenv_home);
+ *ptr++ = LDAP_DIRSEP[0];
+ strcpy( ptr, "__db.001" );
+ if( stat( path, &stat2 ) == 0 ) {
+ if( stat2.st_mtime < stat1.st_mtime ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": DB_CONFIG for suffix %s has changed.\n"
+ "Performing database recovery to activate new settings.\n",
+ be->be_suffix[0].bv_val, 0, 0 );
+ do_recover = DB_RECOVER;
+ }
+ }
+ }
+ }
+ else {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": Warning - No DB_CONFIG file found "
+ "in directory %s: (%d)\n"
+ "Expect poor performance for suffix %s.\n",
+ bdb->bi_dbenv_home, errno, be->be_suffix[0].bv_val );
+ }
+
+ /* Always let slapcat run, regardless of environment state.
+ * This can be used to cause a cache flush after an unclean
+ * shutdown.
+ */
+ if ( do_recover && ( slapMode & SLAP_TOOL_READONLY )) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": Recovery skipped in read-only mode. "
+ "Run manual recovery if errors are encountered.\n",
+ 0, 0, 0 );
+ do_recover = 0;
+ quick = alockt;
+ }
+
+ /* An existing environment in Quick mode has nothing to recover. */
+ if ( alockt && do_recover ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": cannot recover, database must be reinitialized.\n",
+ 0, 0, 0 );
+ rc = -1;
+ goto fail;
+ }
rc = db_env_create( &bdb->bi_dbenv, 0 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: db_env_create failed: %s (%d)\n",
+ LDAP_XSTRING(bdb_db_open) ": db_env_create failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
- return rc;
+ goto fail;
}
- flags = DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN |
- DB_CREATE | DB_RECOVER | DB_THREAD;
-
-#ifdef SLAPD_BDB_PRIVATE
- flags |= DB_PRIVATE;
+#ifdef HAVE_EBCDIC
+ strcpy( path, bdb->bi_dbenv_home );
+ __atoe( path );
+ dbhome = path;
#else
- flags |= DB_INIT_MPOOL;
+ dbhome = bdb->bi_dbenv_home;
#endif
- bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
- bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
-
- {
- char dir[MAXPATHLEN];
- size_t len = strlen( bdb->bi_dbenv_home );
-
- strcpy( dir, bdb->bi_dbenv_home );
- strcat( &dir[len], BDB_TMP_SUBDIR );
-
- rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
+ /* If existing environment is clean but doesn't support
+ * currently requested modes, remove it.
+ */
+ if ( !do_recover && ( alockt ^ quick )) {
+shm_retry:
+ rc = bdb->bi_dbenv->remove( bdb->bi_dbenv, dbhome, DB_FORCE );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": dbenv remove failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ bdb->bi_dbenv = NULL;
+ goto fail;
+ }
+ rc = db_env_create( &bdb->bi_dbenv, 0 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": db_env_create failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ goto fail;
}
+ }
+
+ bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
+ bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
+
+ bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
- strcat( &dir[len], BDB_LG_SUBDIR );
+ /* One long-lived TXN per thread, two TXNs per write op */
+ bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
- rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
+ if( bdb->bi_dbenv_xflags != 0 ) {
+ rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
+ bdb->bi_dbenv_xflags, 1);
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: set_lg_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": dbenv_set_flags failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ goto fail;
}
+ }
- strcat( &dir[len], BDB_DATA_SUBDIR );
+#define BDB_TXN_FLAGS (DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN)
- rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
- if( rc != 0 ) {
- Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: set_data_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
- return rc;
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_db_open) ": dbenv_open(%s)\n",
+ bdb->bi_dbenv_home, 0, 0);
+
+ flags = DB_INIT_MPOOL | DB_CREATE | DB_THREAD;
+
+ if ( !quick )
+ flags |= BDB_TXN_FLAGS;
+
+ /* If a key was set, use shared memory for the BDB environment */
+ if ( bdb->bi_shm_key ) {
+ bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
+ flags |= DB_SYSTEM_MEM;
+ }
+ rc = bdb->bi_dbenv->open( bdb->bi_dbenv, dbhome,
+ flags | do_recover, bdb->bi_dbenv_mode );
+
+ if ( rc ) {
+ /* Regular open failed, probably a missing shm environment.
+ * Start over, do a recovery.
+ */
+ if ( !do_recover && bdb->bi_shm_key ) {
+ bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
+ rc = db_env_create( &bdb->bi_dbenv, 0 );
+ if( rc == 0 ) {
+ Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_db_open)
+ ": Shared memory env open failed, assuming stale env\n",
+ 0, 0, 0 );
+ goto shm_retry;
+ }
}
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": Database cannot be %s, err %d. "
+ "Restore from backup!\n",
+ do_recover ? "recovered" : "opened", rc, 0);
+ goto fail;
}
- rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
- bdb->bi_dbenv_home,
- flags | bdb->bi_dbenv_xflags,
- bdb->bi_dbenv_mode );
- if( rc != 0 ) {
+ if ( do_alock_recover && alock_recover (&bdb->bi_alock_info) != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: dbenv_open(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": alock_recover failed\n",
+ 0, 0, 0 );
+ rc = -1;
+ goto fail;
}
- flags = DB_THREAD | DB_CREATE;
+#ifdef SLAP_ZONE_ALLOC
+ if ( bdb->bi_cache.c_maxsize ) {
+ bdb->bi_cache.c_zctx = slap_zn_mem_create(
+ SLAP_ZONE_INITSIZE,
+ SLAP_ZONE_MAXSIZE,
+ SLAP_ZONE_DELTA,
+ SLAP_ZONE_SIZE);
+ }
+#endif
+
+ if ( bdb->bi_idl_cache_max_size ) {
+ bdb->bi_idl_tree = NULL;
+ bdb->bi_idl_cache_size = 0;
+ }
+
+ flags = DB_THREAD | bdb->bi_db_opflags;
+
+#ifdef DB_AUTO_COMMIT
+ if ( !quick )
+ flags |= DB_AUTO_COMMIT;
+#endif
+
+ bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
+ BDB_INDICES * sizeof(struct bdb_db_info *) );
/* open (and create) main database */
- for( i = 0; i < BDB_INDICES; i++ ) {
+ for( i = 0; bdbi_databases[i].name; i++ ) {
struct bdb_db_info *db;
db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: db_create(%s) failed: %s (%d)\n",
+ LDAP_XSTRING(bdb_db_open) ": db_create(%s) failed: %s (%d)\n",
bdb->bi_dbenv_home, db_strerror(rc), rc );
- return rc;
+ goto fail;
}
- rc = db->bdi_db->open( db->bdi_db,
+ if( i == BDB_ID2ENTRY ) {
+ if ( slapMode & SLAP_TOOL_MODE )
+ db->bdi_db->mpf->set_priority( db->bdi_db->mpf,
+ DB_PRIORITY_VERY_LOW );
+
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_ID2ENTRY_PAGESIZE );
+ if ( slapMode & SLAP_TOOL_READMAIN ) {
+ flags |= DB_RDONLY;
+ } else {
+ flags |= DB_CREATE;
+ }
+ } else {
+ rc = db->bdi_db->set_flags( db->bdi_db,
+ DB_DUP | DB_DUPSORT );
+#ifndef BDB_HIER
+ if ( slapMode & SLAP_TOOL_READONLY ) {
+ flags |= DB_RDONLY;
+ } else {
+ flags |= DB_CREATE;
+ }
+#else
+ if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
+ flags |= DB_RDONLY;
+ } else {
+ flags |= DB_CREATE;
+ }
+#endif
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_PAGESIZE );
+ }
+
+#ifdef HAVE_EBCDIC
+ strcpy( path, bdbi_databases[i].file );
+ __atoe( path );
+ rc = DB_OPEN( db->bdi_db,
+ path,
+ /* bdbi_databases[i].name, */ NULL,
+ bdbi_databases[i].type,
+ bdbi_databases[i].flags | flags,
+ bdb->bi_dbenv_mode );
+#else
+ rc = DB_OPEN( db->bdi_db,
bdbi_databases[i].file,
- bdbi_databases[i].name,
+ /* bdbi_databases[i].name, */ NULL,
bdbi_databases[i].type,
bdbi_databases[i].flags | flags,
bdb->bi_dbenv_mode );
+#endif
- if( rc != 0 ) {
+ if ( rc != 0 ) {
+ char buf[SLAP_TEXT_BUFLEN];
+
+ snprintf( buf, sizeof(buf), "%s/%s",
+ bdb->bi_dbenv_home, bdbi_databases[i].file );
Debug( LDAP_DEBUG_ANY,
- "bi_back_db_open: db_open(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": db_open(%s) failed: %s (%d)\n",
+ buf, db_strerror(rc), rc );
+ db->bdi_db->close( db->bdi_db, 0 );
+ goto fail;
}
+
+ flags &= ~(DB_CREATE | DB_RDONLY);
+ db->bdi_name = bdbi_databases[i].name;
+ bdb->bi_databases[i] = db;
+ }
+
+ bdb->bi_databases[i] = NULL;
+ bdb->bi_ndatabases = i;
+
+ /* get nextid */
+ rc = bdb_last_id( be, NULL );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": last_id(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ goto fail;
}
- /* <insert> open (and create) index databases */
+ if ( !quick ) {
+ XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
+ }
+ bdb->bi_flags |= BDB_IS_OPEN;
return 0;
+
+fail:
+ bdb_db_close( be );
+ return rc;
}
static int
{
int rc;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+ struct bdb_db_info *db;
+ bdb_idl_cache_entry_t *entry, *next_entry;
- /* force a checkpoint */
- rc = txn_checkpoint( bdb->bi_dbenv, 0, 0, DB_FORCE );
- if( rc != 0 ) {
- Debug( LDAP_DEBUG_ANY,
- "bi_back_db_destroy: txn_checkpoint failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
- return rc;
+ bdb->bi_flags &= ~BDB_IS_OPEN;
+
+ ber_bvarray_free( bdb->bi_db_config );
+ bdb->bi_db_config = NULL;
+
+ while( bdb->bi_databases && bdb->bi_ndatabases-- ) {
+ db = bdb->bi_databases[bdb->bi_ndatabases];
+ rc = db->bdi_db->close( db->bdi_db, 0 );
+ /* Lower numbered names are not strdup'd */
+ if( bdb->bi_ndatabases >= BDB_NDB )
+ free( db->bdi_name );
+ free( db );
+ }
+ free( bdb->bi_databases );
+ bdb->bi_databases = NULL;
+
+ bdb_cache_release_all (&bdb->bi_cache);
+
+ if ( bdb->bi_idl_cache_max_size ) {
+ avl_free( bdb->bi_idl_tree, NULL );
+ bdb->bi_idl_tree = NULL;
+ entry = bdb->bi_idl_lru_head;
+ while ( entry != NULL ) {
+ next_entry = entry->idl_lru_next;
+ if ( entry->idl )
+ free( entry->idl );
+ free( entry->kstr.bv_val );
+ free( entry );
+ entry = next_entry;
+ }
+ bdb->bi_idl_lru_head = bdb->bi_idl_lru_tail = NULL;
+ }
+
+ /* close db environment */
+ if( bdb->bi_dbenv ) {
+ /* Free cache locker if we enabled locking */
+ if ( !( slapMode & SLAP_TOOL_QUICK )) {
+ XLOCK_ID_FREE(bdb->bi_dbenv, bdb->bi_cache.c_locker);
+ bdb->bi_cache.c_locker = 0;
+ }
+#ifdef BDB_REUSE_LOCKERS
+ bdb_locker_flush( bdb->bi_dbenv );
+#endif
+ /* force a checkpoint, but not if we were ReadOnly,
+ * and not in Quick mode since there are no transactions there.
+ */
+ if ( !( slapMode & ( SLAP_TOOL_QUICK|SLAP_TOOL_READONLY ))) {
+ rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_close: txn_checkpoint failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ }
+ }
+
+ rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
+ bdb->bi_dbenv = NULL;
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_close: close failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ return rc;
+ }
}
- while( bdb->bi_ndatabases-- ) {
- rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
- bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
+ rc = alock_close( &bdb->bi_alock_info );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_close: alock_close failed\n", 0, 0, 0 );
+ return -1;
}
return 0;
static int
bdb_db_destroy( BackendDB *be )
{
- int rc;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
- /* close db environment */
- rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
- bdb->bi_dbenv = NULL;
- if( rc != 0 ) {
- Debug( LDAP_DEBUG_ANY,
- "bi_back_db_destroy: close failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
- return rc;
- }
+ if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
+ if( bdb->bi_db_config_path ) ch_free( bdb->bi_db_config_path );
- return 0;
-}
+ bdb_attr_index_destroy( bdb );
-#ifdef SLAPD_BDB_DYNAMIC
-int back_bdb_LTX_init_module( int argc, char *argv[] ) {
- BackendInfo bi;
+ ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_head_mutex );
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_tail_mutex );
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_dntree.bei_kids_mutex );
+#ifdef BDB_HIER
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_modrdns_mutex );
+#endif
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
+ ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
+ ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
- memset( &bi, '\0', sizeof(bi) );
- bi.bi_type = "bdb";
- bi.bi_init = bdb_initialize;
+ ch_free( bdb );
+ be->be_private = NULL;
- backend_add( &bi );
- return 0;
+ return 0;
}
-#endif /* SLAPD_BDB_DYNAMIC */
int
-bdb_initialize(
- BackendInfo *bi
-)
+bdb_back_initialize(
+ BackendInfo *bi )
{
+ int rc;
+
static char *controls[] = {
+ LDAP_CONTROL_ASSERT,
LDAP_CONTROL_MANAGEDSAIT,
+ LDAP_CONTROL_NOOP,
+ LDAP_CONTROL_PAGEDRESULTS,
+ LDAP_CONTROL_PRE_READ,
+ LDAP_CONTROL_POST_READ,
+ LDAP_CONTROL_SUBENTRIES,
+ LDAP_CONTROL_X_PERMISSIVE_MODIFY,
NULL
};
+ /* initialize the underlying database system */
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_back_initialize) ": initialize "
+ BDB_UCTYPE " backend\n", 0, 0, 0 );
+
+ bi->bi_flags |=
+ SLAP_BFLAG_INCREMENT |
+ SLAP_BFLAG_SUBENTRIES |
+ SLAP_BFLAG_ALIASES |
+ SLAP_BFLAG_REFERRALS;
+
+ bi->bi_controls = controls;
+
{ /* version check */
- int major, minor, patch;
+ int major, minor, patch, ver;
char *version = db_version( &major, &minor, &patch );
+#ifdef HAVE_EBCDIC
+ char v2[1024];
+
+ /* All our stdio does an ASCII to EBCDIC conversion on
+ * the output. Strings from the BDB library are already
+ * in EBCDIC; we have to go back and forth...
+ */
+ strcpy( v2, version );
+ __etoa( v2 );
+ version = v2;
+#endif
- if( major != DB_VERSION_MAJOR ||
- minor != DB_VERSION_MINOR ||
- patch < DB_VERSION_PATCH )
- {
+ ver = (major << 24) | (minor << 16) | patch;
+ if( ver != DB_VERSION_FULL ) {
+ /* fail if a versions don't match */
Debug( LDAP_DEBUG_ANY,
- "bi_back_initialize: version mismatch\n"
- "\texpected: " DB_VERSION_STRING "\n"
- "\tgot: %s \n", version, 0, 0 );
+ LDAP_XSTRING(bdb_back_initialize) ": "
+ "BDB library version mismatch:"
+ " expected " DB_VERSION_STRING ","
+ " got %s\n", version, 0, 0 );
+ return -1;
}
- Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
- version, 0, 0 );
+ Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_back_initialize)
+ ": %s\n", version, 0, 0 );
}
- bi->bi_controls = controls;
+ db_env_set_func_free( ber_memfree );
+ db_env_set_func_malloc( (db_malloc *)ber_memalloc );
+ db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
+#ifndef NO_THREAD
+ /* This is a no-op on a NO_THREAD build. Leave the default
+ * alone so that BDB will sleep on interprocess conflicts.
+ */
+ db_env_set_func_yield( ldap_pvt_thread_yield );
+#endif
- bi->bi_open = bdb_open;
- bi->bi_close = bdb_close;
+ bi->bi_open = 0;
+ bi->bi_close = 0;
bi->bi_config = 0;
- bi->bi_destroy = bdb_destroy;
+ bi->bi_destroy = 0;
bi->bi_db_init = bdb_db_init;
- bi->bi_db_config = bdb_db_config;
+ bi->bi_db_config = config_generic_wrapper;
bi->bi_db_open = bdb_db_open;
bi->bi_db_close = bdb_db_close;
bi->bi_db_destroy = bdb_db_destroy;
bi->bi_op_add = bdb_add;
+ bi->bi_op_bind = bdb_bind;
bi->bi_op_compare = bdb_compare;
bi->bi_op_delete = bdb_delete;
- bi->bi_op_search = bdb_search;
-
-#if 0
- bi->bi_op_bind = bdb_bind;
- bi->bi_op_unbind = bdb_unbind;
bi->bi_op_modify = bdb_modify;
bi->bi_op_modrdn = bdb_modrdn;
- bi->bi_op_abandon = bdb_abandon;
+ bi->bi_op_search = bdb_search;
+
+ bi->bi_op_unbind = 0;
bi->bi_extended = bdb_extended;
- bi->bi_acl_group = bdb_group;
- bi->bi_acl_attribute = bdb_attribute;
bi->bi_chk_referrals = bdb_referrals;
-#endif
-
- bi->bi_entry_release_rw = 0;
+ bi->bi_operational = bdb_operational;
+ bi->bi_has_subordinates = bdb_hasSubordinates;
+ bi->bi_entry_release_rw = bdb_entry_release;
+ bi->bi_entry_get_rw = bdb_entry_get;
/*
* hooks for slap tools
bi->bi_tool_entry_next = bdb_tool_entry_next;
bi->bi_tool_entry_get = bdb_tool_entry_get;
bi->bi_tool_entry_put = bdb_tool_entry_put;
- bi->bi_tool_entry_reindex = 0;
+ bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
bi->bi_tool_sync = 0;
+ bi->bi_tool_dn2id_get = bdb_tool_dn2id_get;
+ bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
+ bi->bi_tool_entry_modify = bdb_tool_entry_modify;
bi->bi_connection_init = 0;
bi->bi_connection_destroy = 0;
- return 0;
+ rc = bdb_back_init_cf( bi );
+
+ return rc;
}
+
+#if (SLAPD_BDB == SLAPD_MOD_DYNAMIC && !defined(BDB_HIER)) || \
+ (SLAPD_HDB == SLAPD_MOD_DYNAMIC && defined(BDB_HIER))
+
+/* conditionally define the init_module() function */
+#ifdef BDB_HIER
+SLAP_BACKEND_INIT_MODULE( hdb )
+#else /* !BDB_HIER */
+SLAP_BACKEND_INIT_MODULE( bdb )
+#endif /* !BDB_HIER */
+
+#endif /* SLAPD_[BH]DB == SLAPD_MOD_DYNAMIC */
+
projects / openldap / blobdiff