X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fback-bdb%2Finit.c;h=4b5f012335680ce0b15eeeceaa1501cfab4fa4db;hb=3a9310431e4e90005c1d7573c2b8f492cbf0cd0d;hp=e8c156298102e34fa0da4889a57f6348b344a01b;hpb=6651d193206d4d8f8b2880a6502881e097c99fc8;p=openldap

diff --git a/servers/slapd/back-bdb/init.c b/servers/slapd/back-bdb/init.c
index e8c1562981..4b5f012335 100644
--- a/servers/slapd/back-bdb/init.c
+++ b/servers/slapd/back-bdb/init.c
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2000-2006 The OpenLDAP Foundation.
+ * Copyright 2000-2007 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,6 +26,7 @@
 #include <lutil.h>
 #include <ldap_rq.h>
 #include "alock.h"
+#include "config.h"
 
 static const struct bdbi_database {
 	char *file;
@@ -41,10 +42,15 @@ static const struct bdbi_database {
 typedef void * db_malloc(size_t);
 typedef void * db_realloc(void *, size_t);
 
+#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 )
+bdb_db_init( BackendDB *be, ConfigReply *cr )
 {
 	struct bdb_info	*bdb;
+	int rc;
 
 	Debug( LDAP_DEBUG_TRACE,
 		LDAP_XSTRING(bdb_db_init) ": Initializing " BDB_UCTYPE " database\n",
@@ -70,24 +76,28 @@ bdb_db_init( BackendDB *be )
 #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_lru_mutex );
+	ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_count_mutex );
+	ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_eifree_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;
+	rc = bdb_monitor_db_init( be );
+
+	return rc;
 }
 
 static int
-bdb_db_close( BackendDB *be );
+bdb_db_close( BackendDB *be, ConfigReply *cr );
 
 static int
-bdb_db_open( BackendDB *be )
+bdb_db_open( BackendDB *be, ConfigReply *cr )
 {
 	int rc, i;
 	struct bdb_info *bdb = (struct bdb_info *) be->be_private;
@@ -95,24 +105,28 @@ bdb_db_open( BackendDB *be )
 	u_int32_t flags;
 	char path[MAXPATHLEN];
 	char *dbhome;
+	Entry *e = NULL;
 	int do_recover = 0, do_alock_recover = 0;
 	int alockt, quick = 0;
 
 	if ( be->be_suffix == NULL ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: need suffix\n",
-			0, 0, 0 );
+			LDAP_XSTRING(bdb_db_open) ": need suffix\n",
+			1, 0, 0 );
 		return -1;
 	}
 
 	Debug( LDAP_DEBUG_ARGS,
-		"bdb_db_open: %s\n",
+		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,
-		"bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
+		if (cr) {
+			snprintf(cr->msg, sizeof(cr->msg), "only one suffix allowed");
+			Debug( LDAP_DEBUG_ANY,
+				LDAP_XSTRING(bdb_db_open) ": %s\n", cr->msg, 0, 0 );
+		}
 		return -1;
 	}
 #endif
@@ -121,9 +135,9 @@ bdb_db_open( BackendDB *be )
 	rc = stat( bdb->bi_dbenv_home, &stat1 );
 	if( rc !=0 ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: Cannot access database directory %s (%d)\n",
+			LDAP_XSTRING(bdb_db_open) ": Cannot access database directory %s (%d)\n",
 			bdb->bi_dbenv_home, errno, 0 );
-			return -1;
+		return -1;
 	}
 
 	/* Perform database use arbitration/recovery logic */
@@ -143,19 +157,19 @@ bdb_db_open( BackendDB *be )
 
 	if( rc == ALOCK_RECOVER ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: unclean shutdown detected;"
+			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,
-			"bdb_db_open: database already in use\n", 
+			LDAP_XSTRING(bdb_db_open) ": database already in use\n", 
 			0, 0, 0 );
 		return -1;
 	} else if( rc != ALOCK_CLEAN ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: alock package is unstable\n", 
+			LDAP_XSTRING(bdb_db_open) ": alock package is unstable\n", 
 			0, 0, 0 );
 		return -1;
 	}
@@ -173,7 +187,7 @@ bdb_db_open( BackendDB *be )
 			if( stat( path, &stat2 ) == 0 ) {
 				if( stat2.st_mtime < stat1.st_mtime ) {
 					Debug( LDAP_DEBUG_ANY,
-						"bdb_db_open: DB_CONFIG for suffix %s has changed.\n"
+						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;
@@ -183,7 +197,7 @@ bdb_db_open( BackendDB *be )
 	}
 	else {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: Warning - No DB_CONFIG file found "
+			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 );
@@ -195,7 +209,7 @@ bdb_db_open( BackendDB *be )
 	 */
 	if ( do_recover && ( slapMode & SLAP_TOOL_READONLY )) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: Recovery skipped in read-only mode. "
+			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;
@@ -205,7 +219,7 @@ bdb_db_open( BackendDB *be )
 	/* An existing environment in Quick mode has nothing to recover. */
 	if ( alockt && do_recover ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: cannot recover, database must be reinitialized.\n", 
+			LDAP_XSTRING(bdb_db_open) ": cannot recover, database must be reinitialized.\n", 
 			0, 0, 0 );
 		rc = -1;
 		goto fail;
@@ -214,7 +228,7 @@ bdb_db_open( BackendDB *be )
 	rc = db_env_create( &bdb->bi_dbenv, 0 );
 	if( rc != 0 ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_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 );
 		goto fail;
 	}
@@ -231,10 +245,11 @@ bdb_db_open( BackendDB *be )
 	 * 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: dbenv remove failed: %s (%d)\n",
+				LDAP_XSTRING(bdb_db_open) ": dbenv remove failed: %s (%d)\n",
 				db_strerror(rc), rc, 0 );
 			bdb->bi_dbenv = NULL;
 			goto fail;
@@ -242,7 +257,7 @@ bdb_db_open( BackendDB *be )
 		rc = db_env_create( &bdb->bi_dbenv, 0 );
 		if( rc != 0 ) {
 			Debug( LDAP_DEBUG_ANY,
-				"bdb_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 );
 			goto fail;
 		}
@@ -261,7 +276,7 @@ bdb_db_open( BackendDB *be )
 			bdb->bi_dbenv_xflags, 1);
 		if( rc != 0 ) {
 			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 );
 			goto fail;
 		}
@@ -270,7 +285,7 @@ bdb_db_open( BackendDB *be )
 #define	BDB_TXN_FLAGS	(DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN)
 
 	Debug( LDAP_DEBUG_TRACE,
-		"bdb_db_open: dbenv_open(%s)\n",
+		LDAP_XSTRING(bdb_db_open) ": dbenv_open(%s)\n",
 		bdb->bi_dbenv_home, 0, 0);
 
 	flags = DB_INIT_MPOOL | DB_CREATE | DB_THREAD;
@@ -287,8 +302,21 @@ bdb_db_open( BackendDB *be )
 			flags | do_recover, bdb->bi_dbenv_mode );
 
 	if ( rc ) {
+		/* Regular open faied, 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,
-			"bdb_db_open: Database cannot be %s, err %d. "
+			LDAP_XSTRING(bdb_db_open) ": Database cannot be %s, err %d. "
 			"Restore from backup!\n",
 				do_recover ? "recovered" : "opened", rc, 0);
 		goto fail;
@@ -296,7 +324,7 @@ bdb_db_open( BackendDB *be )
 
 	if ( do_alock_recover && alock_recover (&bdb->bi_alock_info) != 0 ) {
 		Debug( LDAP_DEBUG_ANY,
-			"bdb_db_open: alock_recover failed\n",
+			LDAP_XSTRING(bdb_db_open) ": alock_recover failed\n",
 			0, 0, 0 );
 		rc = -1;
 		goto fail;
@@ -334,7 +362,7 @@ bdb_db_open( BackendDB *be )
 		rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
 		if( rc != 0 ) {
 			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 );
 			goto fail;
 		}
@@ -395,7 +423,7 @@ bdb_db_open( BackendDB *be )
 			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",
+				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;
@@ -413,7 +441,7 @@ bdb_db_open( BackendDB *be )
 	rc = bdb_last_id( be, NULL );
 	if( rc != 0 ) {
 		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 );
 		goto fail;
 	}
@@ -422,23 +450,58 @@ bdb_db_open( BackendDB *be )
 		XLOCK_ID(bdb->bi_dbenv, &bdb->bi_cache.c_locker);
 	}
 
+	entry_prealloc( bdb->bi_cache.c_maxsize );
+	attr_prealloc( bdb->bi_cache.c_maxsize * 20 );
+
+	/* setup for empty-DN contexts */
+	if ( BER_BVISEMPTY( &be->be_nsuffix[0] )) {
+		rc = bdb_id2entry( be, NULL, 0, 0, &e );
+	}
+	if ( !e ) {
+		e = entry_alloc();
+		e->e_id = 0;
+		ber_dupbv( &e->e_name, (struct berval *)&slap_empty_bv );
+		ber_dupbv( &e->e_nname, (struct berval *)&slap_empty_bv );
+	}
+	e->e_ocflags = SLAP_OC_GLUE|SLAP_OC__END;
+	e->e_private = &bdb->bi_cache.c_dntree;
+	bdb->bi_cache.c_dntree.bei_e = e;
+
+	/* monitor setup */
+	rc = bdb_monitor_db_open( be );
+	if ( rc != 0 ) {
+		goto fail;
+	}
+
 	bdb->bi_flags |= BDB_IS_OPEN;
 
 	return 0;
 
 fail:
-	bdb_db_close( be );
+	bdb_db_close( be, NULL );
 	return rc;
 }
 
 static int
-bdb_db_close( BackendDB *be )
+bdb_db_close( BackendDB *be, ConfigReply *cr )
 {
 	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;
 
+	/* monitor handling */
+	(void)bdb_monitor_db_close( be );
+
+	{
+		Entry *e = bdb->bi_cache.c_dntree.bei_e;
+		if ( e ) {
+			bdb->bi_cache.c_dntree.bei_e = NULL;
+			e->e_private = NULL;
+			bdb_entry_return( e );
+		}
+	}
+
 	bdb->bi_flags &= ~BDB_IS_OPEN;
 
 	ber_bvarray_free( bdb->bi_db_config );
@@ -457,18 +520,18 @@ bdb_db_close( BackendDB *be )
 
 	bdb_cache_release_all (&bdb->bi_cache);
 
-	if ( bdb->bi_idl_cache_max_size ) {
+	if ( bdb->bi_idl_cache_size ) {
 		avl_free( bdb->bi_idl_tree, NULL );
 		bdb->bi_idl_tree = NULL;
 		entry = bdb->bi_idl_lru_head;
-		while ( entry != NULL ) {
+		do {
 			next_entry = entry->idl_lru_next;
 			if ( entry->idl )
 				free( entry->idl );
 			free( entry->kstr.bv_val );
 			free( entry );
 			entry = next_entry;
-		}
+		} while ( entry != bdb->bi_idl_lru_head );
 		bdb->bi_idl_lru_head = bdb->bi_idl_lru_tail = NULL;
 	}
 
@@ -479,7 +542,9 @@ bdb_db_close( BackendDB *be )
 			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.
 		 */
@@ -513,18 +578,22 @@ bdb_db_close( BackendDB *be )
 }
 
 static int
-bdb_db_destroy( BackendDB *be )
+bdb_db_destroy( BackendDB *be, ConfigReply *cr )
 {
 	struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 
+	/* monitor handling */
+	(void)bdb_monitor_db_destroy( be );
+
 	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_head_mutex );
-	ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_tail_mutex );
+	ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_lru_mutex );
+	ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_count_mutex );
+	ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.c_eifree_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 );