/* init.c - initialize bdb backend */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2003 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 <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 const struct bdbi_database {
char *file;
{ NULL, NULL, 0, 0 }
};
-struct berval bdb_uuid = { 0, NULL };
-
typedef void * db_malloc(size_t);
typedef void * db_realloc(void *, size_t);
-#if 0
-static int
-bdb_open( BackendInfo *bi )
-{
- return 0;
-}
-
-static int
-bdb_destroy( BackendInfo *bi )
-{
- return 0;
-}
-
-static int
-bdb_close( BackendInfo *bi )
-{
- /* terminate the underlying database system */
- return 0;
-}
-#endif
+#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( BackendDB *be )
{
struct bdb_info *bdb;
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_init", 0, 0, 0 );
-#else
- Debug( LDAP_DEBUG_ANY,
- "bdb_db_init: Initializing BDB database\n",
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_db_init) ": Initializing " BDB_UCTYPE " database\n",
0, 0, 0 );
-#endif
-
- /* indicate system schema supported */
- be->be_flags |=
-#ifdef BDB_SUBENTRIES
- SLAP_BFLAG_SUBENTRIES |
-#endif
-#ifdef BDB_ALIASES
- SLAP_BFLAG_ALIASES |
-#endif
- SLAP_BFLAG_REFERRALS;
/* allocate backend-database-specific stuff */
bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
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;
-#ifdef LDAP_SYNC
- LDAP_LIST_INIT (&bdb->bi_psearch_list);
-#endif
-
+ ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
- ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_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;
}
-int
-bdb_bt_compare(
- DB *db,
- const DBT *usrkey,
- const DBT *curkey
-)
-{
- unsigned char *u, *c;
- int i, x;
-
- u = usrkey->data;
- c = curkey->data;
-
-#ifdef WORDS_BIGENDIAN
- for( i = 0; i < (int)sizeof(ID); i++)
-#else
- for( i = sizeof(ID)-1; i >= 0; i--)
-#endif
- {
- x = u[i] - c[i];
- if( x ) return x;
- }
-
- 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;
-#ifdef HAVE_EBCDIC
char path[MAXPATHLEN];
-#endif
+ 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;
+ }
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ARGS,
- "bdb_db_open: %s\n", be->be_suffix[0].bv_val, 0, 0 );
-#else
Debug( LDAP_DEBUG_ARGS,
- "bdb_db_open: %s\n",
+ LDAP_XSTRING(bdb_db_open) ": %s\n",
be->be_suffix[0].bv_val, 0, 0 );
-#endif
#ifndef BDB_MULTIPLE_SUFFIXES
if ( be->be_suffix[1].bv_val ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
-#endif
+ LDAP_XSTRING(bdb_db_open) ": only one suffix allowed\n", 0, 0, 0 );
return -1;
}
#endif
- /* we should check existance of dbenv_home and db_directory */
- rc = db_env_create( &bdb->bi_dbenv, 0 );
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: db_env_create failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#else
+ /* Check existence of dbenv_home. Any error means trouble */
+ rc = stat( bdb->bi_dbenv_home, &stat1 );
+ if( rc !=0 ) {
Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: db_env_create failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#endif
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": Cannot access database directory %s (%d)\n",
+ bdb->bi_dbenv_home, errno, 0 );
+ return -1;
}
- flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
- | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
-
-#if 0
- /* Never do automatic recovery, must perform it manually.
- * Otherwise restarting with gentlehup will corrupt the
- * database.
- */
- if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
-#endif
-
- /* 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;
+ /* 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;
}
- 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 );
+ rc = alock_open( &bdb->bi_alock_info,
+ "slapd",
+ bdb->bi_dbenv_home, alockt );
-#ifdef SLAP_IDL_CACHE
- if ( bdb->bi_idl_cache_max_size ) {
- bdb->bi_idl_tree = NULL;
- ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
- ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
- bdb->bi_idl_cache_size = 0;
+ /* 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;
}
-#endif
-#ifdef BDB_SUBDIRS
- {
- char dir[MAXPATHLEN], *ptr;
-
- if (bdb->bi_dbenv_home[0] == '.') {
- /* If home is a relative path, relative subdirs
- * are just concat'd by BDB. We don't want the
- * path to be concat'd twice, e.g.
- * ./test-db/./test-db/tmp
- */
- ptr = dir;
- } else {
- ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
+ /*
+ * 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];
-#ifdef HAVE_EBCDIC
- __atoe( dir );
-#endif
+ 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,
+ LDAP_XSTRING(bdb_db_open) ": db_env_create failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ goto fail;
+ }
- strcpy( ptr, BDB_TMP_SUBDIR );
#ifdef HAVE_EBCDIC
- __atoe( ptr );
-#endif
- rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
+ strcpy( path, bdb->bi_dbenv_home );
+ __atoe( path );
+ dbhome = path;
#else
- Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
+ dbhome = bdb->bi_dbenv_home;
#endif
- return rc;
- }
- strcpy( ptr, BDB_LG_SUBDIR );
-#ifdef HAVE_EBCDIC
- __atoe( ptr );
-#endif
- rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
-#else
+ /* 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,
- "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
-#endif
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": dbenv remove failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ bdb->bi_dbenv = NULL;
+ goto fail;
}
-
- strcpy( ptr, BDB_DATA_SUBDIR );
-#ifdef HAVE_EBCDIC
- __atoe( ptr );
-#endif
- rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
+ rc = db_env_create( &bdb->bi_dbenv, 0 );
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
- dir, db_strerror(rc), rc );
-#endif
- return rc;
+ LDAP_XSTRING(bdb_db_open) ": db_env_create failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ goto fail;
}
}
-#endif
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, DETAIL1,
- "bdb_db_open: dbenv_open %s\n", bdb->bi_dbenv_home, 0, 0 );
-#else
- Debug( LDAP_DEBUG_TRACE,
- "bdb_db_open: dbenv_open(%s)\n",
- bdb->bi_dbenv_home, 0, 0);
-#endif
+ bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
+ bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
-#ifdef HAVE_EBCDIC
- strcpy( path, bdb->bi_dbenv_home );
- __atoe( path );
- rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
- path,
- flags,
- bdb->bi_dbenv_mode );
-#else
- rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
- bdb->bi_dbenv_home,
- flags,
- bdb->bi_dbenv_mode );
-#endif
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: dbenv_open failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#else
- Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: dbenv_open failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#endif
- return rc;
- }
+ bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
+
+ /* One long-lived TXN per thread, two TXNs per write op */
+ bdb->bi_dbenv->set_tx_max( bdb->bi_dbenv, connection_pool_max * 3 );
if( bdb->bi_dbenv_xflags != 0 ) {
rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
bdb->bi_dbenv_xflags, 1);
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
+ LDAP_XSTRING(bdb_db_open) ": dbenv_set_flags failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
-#endif
- return rc;
+ goto fail;
}
}
+#define BDB_TXN_FLAGS (DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN)
+
+ 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;
+ }
+
+ if ( do_alock_recover && alock_recover (&bdb->bi_alock_info) != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(bdb_db_open) ": alock_recover failed\n",
+ 0, 0, 0 );
+ rc = -1;
+ goto fail;
+ }
+
+#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 *) );
rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: db_create(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_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 );
-#endif
- return rc;
+ goto fail;
}
if( i == BDB_ID2ENTRY ) {
- rc = db->bdi_db->set_bt_compare( db->bdi_db,
- bdb_bt_compare );
+ 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 ) {
rc = db->bdi_db->set_flags( db->bdi_db,
DB_DUP | DB_DUPSORT );
#ifndef BDB_HIER
- rc = db->bdi_db->set_dup_compare( db->bdi_db,
- bdb_bt_compare );
if ( slapMode & SLAP_TOOL_READONLY ) {
flags |= DB_RDONLY;
} else {
flags |= DB_CREATE;
}
#else
- rc = db->bdi_db->set_dup_compare( db->bdi_db,
- bdb_dup_compare );
- rc = db->bdi_db->set_bt_compare( db->bdi_db,
- bdb_bt_compare );
if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
flags |= DB_RDONLY;
} else {
#ifdef HAVE_EBCDIC
strcpy( path, bdbi_databases[i].file );
__atoe( path );
- rc = DB_OPEN( db->bdi_db, NULL,
+ rc = DB_OPEN( db->bdi_db,
path,
/* bdbi_databases[i].name, */ NULL,
bdbi_databases[i].type,
- bdbi_databases[i].flags | flags | DB_AUTO_COMMIT,
+ bdbi_databases[i].flags | flags,
bdb->bi_dbenv_mode );
#else
- rc = DB_OPEN( db->bdi_db, NULL,
+ rc = DB_OPEN( db->bdi_db,
bdbi_databases[i].file,
/* bdbi_databases[i].name, */ NULL,
bdbi_databases[i].type,
- bdbi_databases[i].flags | flags | DB_AUTO_COMMIT,
+ bdbi_databases[i].flags | flags,
bdb->bi_dbenv_mode );
#endif
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: db_create(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
-#else
+ 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,
- "bdb_db_open: db_open(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
-#endif
- 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);
/* get nextid */
rc = bdb_last_id( be, NULL );
if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_open: last_id(%s) failed: %s (%d)\n",
- bdb->bi_dbenv_home, db_strerror(rc), rc );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_db_open: last_id(%s) failed: %s (%d)\n",
+ LDAP_XSTRING(bdb_db_open) ": last_id(%s) failed: %s (%d)\n",
bdb->bi_dbenv_home, db_strerror(rc), rc );
-#endif
- return 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;
-#ifdef SLAP_IDL_CACHE
bdb_idl_cache_entry_t *entry, *next_entry;
-#endif
- while( bdb->bi_ndatabases-- ) {
+ 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 */
free( db );
}
free( bdb->bi_databases );
- bdb_attr_index_destroy( bdb->bi_attrs );
+ bdb->bi_databases = NULL;
bdb_cache_release_all (&bdb->bi_cache);
-#ifdef SLAP_IDL_CACHE
if ( bdb->bi_idl_cache_max_size ) {
- ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
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;
free( entry );
entry = next_entry;
}
- ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
+ bdb->bi_idl_lru_head = bdb->bi_idl_lru_tail = NULL;
}
-#endif
-
- return 0;
-}
-
-static int
-bdb_db_destroy( BackendDB *be )
-{
- int rc;
- struct bdb_info *bdb = (struct bdb_info *) be->be_private;
/* close db environment */
if( bdb->bi_dbenv ) {
- /* force a checkpoint */
- rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
- if( rc != 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#else
- Debug( LDAP_DEBUG_ANY,
- "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
+ /* 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 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_destroy: close failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
-#else
Debug( LDAP_DEBUG_ANY,
- "bdb_db_destroy: close failed: %s (%d)\n",
+ "bdb_db_close: close failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
-#endif
return rc;
}
}
+ 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 )
+{
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
+ if( bdb->bi_db_config_path ) ch_free( bdb->bi_db_config_path );
+
+ bdb_attr_index_destroy( bdb );
ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
- ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
+ 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 );
- ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
-#ifdef SLAP_IDL_CACHE
- if ( bdb->bi_idl_cache_max_size ) {
- ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
- ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
- }
+#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 );
ch_free( bdb );
be->be_private = NULL;
return 0;
}
-#ifdef SLAPD_BDB_DYNAMIC
-int init_module( int argc, char *argv[] ) {
- BackendInfo bi;
-
- memset( &bi, '\0', sizeof(bi) );
- bi.bi_type = "bdb";
- bi.bi_init = bdb_initialize;
-
- backend_add( &bi );
- 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,
-#ifdef LDAP_CONTROL_PAGEDRESULTS
LDAP_CONTROL_PAGEDRESULTS,
-#endif
-#ifdef LDAP_CONTROL_SUBENTRIES
+ LDAP_CONTROL_PRE_READ,
+ LDAP_CONTROL_POST_READ,
LDAP_CONTROL_SUBENTRIES,
-#endif
- LDAP_CONTROL_VALUESRETURNFILTER,
+ LDAP_CONTROL_X_PERMISSIVE_MODIFY,
NULL
};
- bi->bi_controls = controls;
-
/* initialize the underlying database system */
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_initialize\n", 0, 0, 0 );
-#else
- Debug( LDAP_DEBUG_TRACE, "bdb_initialize: initialize BDB backend\n",
- 0, 0, 0 );
-#endif
+ 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];
version = v2;
#endif
- if( major != DB_VERSION_MAJOR ||
- minor != DB_VERSION_MINOR ||
- patch < DB_VERSION_PATCH )
- {
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, ERR,
- "bdb_db_initialize: version mismatch: "
- "\texpected: %s \tgot: %s\n", DB_VERSION_STRING, version, 0 );
-#else
+ ver = (major << 24) | (minor << 16) | patch;
+ if( ver != DB_VERSION_FULL ) {
+ /* fail if a versions don't match */
Debug( LDAP_DEBUG_ANY,
- "bdb_initialize: version mismatch\n"
- "\texpected: " DB_VERSION_STRING "\n"
- "\tgot: %s \n", version, 0, 0 );
-#endif
+ LDAP_XSTRING(bdb_back_initialize) ": "
+ "BDB library version mismatch:"
+ " expected " DB_VERSION_STRING ","
+ " got %s\n", version, 0, 0 );
+ return -1;
}
-#ifdef NEW_LOGGING
- LDAP_LOG( BACK_BDB, DETAIL1,
- "bdb_db_initialize: %s\n", version, 0, 0 );
-#else
- Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
- version, 0, 0 );
-#endif
+ Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_back_initialize)
+ ": %s\n", version, 0, 0 );
}
db_env_set_func_free( ber_memfree );
db_env_set_func_yield( ldap_pvt_thread_yield );
#endif
- {
- static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
-
- bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
- bdb_uuid.bv_val = uuidbuf;
- }
-
bi->bi_open = 0;
bi->bi_close = 0;
bi->bi_config = 0;
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_unbind = 0;
-#ifdef LDAP_SYNC
- bi->bi_op_abandon = bdb_abandon;
- bi->bi_op_cancel = bdb_cancel;
-#else
- bi->bi_op_abandon = 0;
- bi->bi_op_cancel = 0;
-#endif
-
bi->bi_extended = bdb_extended;
bi->bi_chk_referrals = bdb_referrals;
bi->bi_tool_entry_put = bdb_tool_entry_put;
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