/* init.c - initialize bdb backend */
/* $OpenLDAP$ */
/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include <stdio.h>
#include <ac/string.h>
+#include <ac/unistd.h>
+#include <ac/stdlib.h>
+
+#include <lutil.h>
#include "back-bdb.h"
#include "external.h"
char *name;
int type;
int flags;
-} bdbi_databases[BDB_INDICES] = {
- { "nextid" BDB_SUFFIX, "nextid", DB_BTREE, 0 },
- { "dn2entry" BDB_SUFFIX, "dn2entry", DB_BTREE, 0 },
+} bdbi_databases[] = {
{ "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
+#ifdef BDB_HIER
+ { "id2parent" BDB_SUFFIX, "id2parent", DB_BTREE, 0 },
+#else
+ { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
+#endif
+ { NULL, NULL, 0, 0 }
};
-#if 0
+struct berval bdb_uuid = { 0, NULL };
+
static int
-bdb_destroy( BackendInfo *bi )
+bdb_open( BackendInfo *bi )
{
return 0;
}
+#if 0
static int
-bdb_open( BackendInfo *bi )
+bdb_destroy( BackendInfo *bi )
{
- /* initialize the underlying database system */
- Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
- 0, 0, 0 );
-
return 0;
}
"bdb_db_init: Initializing BDB database\n",
0, 0, 0 );
+ /* 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) );
/* 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;
+
+#ifndef NO_THREADS
+#if 0
+ bdb->bi_lock_detect = DB_LOCK_NORUN;
+#else
+ bdb->bi_lock_detect = DB_LOCK_DEFAULT;
+#endif
+#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.c_mutex );
+#ifdef BDB_HIER
+ ldap_pvt_thread_rdwr_init( &bdb->bi_tree_rdwr );
+#endif
be->be_private = bdb;
return 0;
}
+#if 0 /* ifndef NO_THREADS */
+static void *lock_detect_task( void *arg )
+{
+ struct bdb_info *bdb = (struct bdb_info *) arg;
+
+ while( bdb->bi_dbenv != NULL ) {
+ int rc;
+ int aborted;
+ sleep( bdb->bi_lock_detect_seconds );
+
+ rc = LOCK_DETECT( bdb->bi_dbenv, 0,
+ bdb->bi_lock_detect, &aborted );
+
+ if( rc != 0 ) {
+ break;
+ }
+
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_lock_detect: aborted %d locks\n",
+ aborted, 0, 0 );
+ }
+
+ return NULL;
+}
+#endif
+
+int
+bdb_bt_compare(
+ DB *db,
+ const DBT *usrkey,
+ const DBT *curkey
+)
+{
+ unsigned char *u, *c;
+ int i;
+
+ u = usrkey->data;
+ c = curkey->data;
+
+#ifdef WORDS_BIGENDIAN
+ for( i = 0; i < sizeof(ID); i++)
+#else
+ for( i = sizeof(ID)-1; i >= 0; i--)
+#endif
+ {
+ if( u[i] - c[i] )
+ return u[i] - c[i];
+ }
+ return 0;
+}
+
static int
bdb_db_open( BackendDB *be )
{
Debug( LDAP_DEBUG_ARGS,
"bdb_db_open: %s\n",
- be->be_suffix[0], 0, 0 );
+ be->be_suffix[0]->bv_val, 0, 0 );
/* we should check existance of dbenv_home and db_directory */
return rc;
}
- flags = DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN |
- DB_CREATE | DB_RECOVER | DB_THREAD;
-
-#ifdef SLAPD_BDB_PRIVATE
- flags |= DB_PRIVATE;
-#else
- flags |= DB_INIT_MPOOL;
-#endif
+ flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
+ | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | DB_RECOVER;
- bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
+ bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0]->bv_val );
bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
+#ifndef NO_THREADS
+ bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
+#endif
#ifdef BDB_SUBDIRS
{
rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
bdb->bi_dbenv_home,
- flags | bdb->bi_dbenv_xflags,
+ flags,
bdb->bi_dbenv_mode );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
return rc;
}
- flags = DB_THREAD | DB_CREATE;
+ 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,
+ "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ return rc;
+ }
+ }
+
+ flags = DB_THREAD | DB_CREATE | bdb->bi_db_opflags;
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));
return rc;
}
+ if( i == BDB_ID2ENTRY ) {
+ rc = db->bdi_db->set_bt_compare( db->bdi_db,
+ bdb_bt_compare );
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_ID2ENTRY_PAGESIZE );
+ } else {
+#ifdef BDB_HIER
+ rc = db->bdi_db->set_bt_compare( db->bdi_db,
+ bdb_bt_compare );
+#elif defined(BDB_IDL_MULTI)
+ rc = db->bdi_db->set_flags( db->bdi_db,
+ DB_DUP | DB_DUPSORT );
+ rc = db->bdi_db->set_dup_compare( db->bdi_db,
+ bdb_bt_compare );
+#endif
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_PAGESIZE );
+ }
+
rc = db->bdi_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 );
return rc;
}
+ db->bdi_name = bdbi_databases[i].name;
bdb->bi_databases[i] = db;
}
- /* <insert> open (and create) index databases */
+ bdb->bi_databases[i] = NULL;
+ bdb->bi_ndatabases = i;
+ /* get nextid */
+ rc = bdb_last_id( be, NULL );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: last_id(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ return rc;
+ }
+
+ /* <insert> open (and create) index databases */
+#ifdef BDB_HIER
+ rc = bdb_build_tree( be );
+#endif
+#if 0 /* ifndef NO_THREADS */
+ if( bdb->bi_lock_detect != DB_LOCK_NORUN ) {
+ /* listener as a separate THREAD */
+ rc = ldap_pvt_thread_create( &bdb->bi_lock_detect_tid,
+ 1, lock_detect_task, bdb );
+ }
+#endif
return 0;
}
{
int rc;
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
-
- /* force a checkpoint */
- rc = txn_checkpoint( bdb->bi_dbenv, 0, 0, DB_FORCE );
- if( rc != 0 ) {
- Debug( LDAP_DEBUG_ANY,
- "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
- return rc;
- }
+ struct bdb_db_info *db;
while( bdb->bi_ndatabases-- ) {
- rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
- bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
+ 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_attr_index_destroy( bdb->bi_attrs );
+
+ bdb_cache_release_all (&bdb->bi_cache);
return 0;
}
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,
- "bdb_db_destroy: close failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
- return rc;
+ if( bdb->bi_dbenv ) {
+ /* force a checkpoint */
+ rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ }
+
+ bdb_cache_release_all (&bdb->bi_cache);
+
+ rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
+ bdb->bi_dbenv = NULL;
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_destroy: close failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ return rc;
+ }
}
return 0;
{
static char *controls[] = {
LDAP_CONTROL_MANAGEDSAIT,
+ LDAP_CONTROL_SUBENTRIES,
+ LDAP_CONTROL_NOOP,
NULL
};
+ bi->bi_controls = controls;
+
+ /* initialize the underlying database system */
+ Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
+ 0, 0, 0 );
+
{ /* version check */
int major, minor, patch;
char *version = db_version( &major, &minor, &patch );
patch < DB_VERSION_PATCH )
{
Debug( LDAP_DEBUG_ANY,
- "bi_back_initialize: version mismatch\n"
+ "bdb_open: version mismatch\n"
"\texpected: " DB_VERSION_STRING "\n"
"\tgot: %s \n", version, 0, 0 );
}
- Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
+ Debug( LDAP_DEBUG_ANY, "bdb_open: %s\n",
version, 0, 0 );
}
db_env_set_func_realloc( ch_realloc );
db_env_set_func_free( ch_free );
#endif
+
db_env_set_func_yield( ldap_pvt_thread_yield );
- bi->bi_controls = controls;
+ {
+ static char uuidbuf[40];
+
+ bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
+ bdb_uuid.bv_val = uuidbuf;
+ }
bi->bi_open = 0;
bi->bi_close = 0;
bi->bi_op_modrdn = bdb_modrdn;
bi->bi_op_search = bdb_search;
-#if 0
- bi->bi_op_unbind = bdb_unbind;
- bi->bi_op_abandon = bdb_abandon;
+ bi->bi_op_unbind = 0;
+ bi->bi_op_abandon = 0;
bi->bi_extended = bdb_extended;
+#if 0
+ /*
+ * these routines (and their callers) are not yet designed
+ * to work with transaction. Using them may cause deadlock.
+ */
bi->bi_acl_group = bdb_group;
bi->bi_acl_attribute = bdb_attribute;
+#else
+ bi->bi_acl_group = 0;
+ bi->bi_acl_attribute = 0;
#endif
- bi->bi_chk_referrals = bdb_referrals;
- bi->bi_entry_release_rw = 0;
+ bi->bi_chk_referrals = bdb_referrals;
+ bi->bi_entry_release_rw = bdb_entry_release;
/*
* 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_connection_init = 0;
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