mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
323689da57
(Concurrent Data Store mode) instead of DB_INIT_TXN. Faster, but tends to impede writers.
405 lines
8.6 KiB
C
405 lines
8.6 KiB
C
/* init.c - initialize bdb backend */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ac/string.h>
|
|
|
|
#include "back-bdb.h"
|
|
#include "external.h"
|
|
|
|
static struct bdbi_database {
|
|
char *file;
|
|
char *name;
|
|
int type;
|
|
int flags;
|
|
} bdbi_databases[] = {
|
|
{ "nextid" BDB_SUFFIX, "nextid", DB_BTREE, 0 },
|
|
{ "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
|
|
{ "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
|
|
{ NULL, NULL, 0, 0 }
|
|
};
|
|
|
|
#if 0
|
|
static int
|
|
bdb_destroy( BackendInfo *bi )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bdb_open( BackendInfo *bi )
|
|
{
|
|
/* initialize the underlying database system */
|
|
Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
|
|
0, 0, 0 );
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bdb_close( BackendInfo *bi )
|
|
{
|
|
/* terminate the underlying database system */
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
bdb_db_init( BackendDB *be )
|
|
{
|
|
struct bdb_info *bdb;
|
|
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_init: Initializing BDB 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_xflags = 0;
|
|
bdb->bi_dbenv_mode = DEFAULT_MODE;
|
|
bdb->bi_txn = 1; /* default to using transactions */
|
|
|
|
#ifndef NO_THREADS
|
|
bdb->bi_lock_detect = DB_LOCK_NORUN;
|
|
#endif
|
|
|
|
ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
|
|
|
|
be->be_private = bdb;
|
|
return 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;
|
|
sleep( bdb->bi_lock_detect_seconds );
|
|
|
|
rc = lock_detect( bdb->bi_dbenv, 0,
|
|
bdb->bi_lock_detect, NULL );
|
|
|
|
if( rc != 0 ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
bdb_db_open( BackendDB *be )
|
|
{
|
|
int rc, i;
|
|
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
|
|
u_int32_t flags;
|
|
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"bdb_db_open: %s\n",
|
|
be->be_suffix[0], 0, 0 );
|
|
|
|
/* we should check existance of dbenv_home and db_directory */
|
|
|
|
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",
|
|
db_strerror(rc), rc, 0 );
|
|
return rc;
|
|
}
|
|
|
|
flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE;
|
|
if( bdb->bi_txn )
|
|
flags |= DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | DB_RECOVER;
|
|
else {
|
|
flags |= DB_INIT_CDB;
|
|
bdb->bi_txn_cp = 0;
|
|
bdb->bi_dbenv->set_lk_detect(bdb->bi_dbenv, DB_LOCK_DEFAULT);
|
|
}
|
|
|
|
bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
|
|
bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
|
|
|
|
#ifdef BDB_SUBDIRS
|
|
{
|
|
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( rc != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
|
|
dir, db_strerror(rc), rc );
|
|
return rc;
|
|
}
|
|
|
|
strcat( &dir[len], BDB_LG_SUBDIR );
|
|
|
|
rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
|
|
if( rc != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
|
|
dir, db_strerror(rc), rc );
|
|
return rc;
|
|
}
|
|
|
|
strcat( &dir[len], BDB_DATA_SUBDIR );
|
|
|
|
rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
|
|
if( rc != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
|
|
dir, db_strerror(rc), rc );
|
|
return rc;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"bdb_db_open: dbenv_open(%s)\n",
|
|
bdb->bi_dbenv_home, 0, 0);
|
|
|
|
rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
|
|
bdb->bi_dbenv_home,
|
|
flags,
|
|
bdb->bi_dbenv_mode );
|
|
if( rc != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_open: dbenv_open failed: %s (%d)\n",
|
|
db_strerror(rc), rc, 0 );
|
|
return rc;
|
|
}
|
|
|
|
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_databases = (struct bdb_db_info **) ch_malloc(
|
|
BDB_INDICES * sizeof(struct bdb_db_info *) );
|
|
|
|
/* open (and create) main database */
|
|
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,
|
|
"bdb_db_open: db_create(%s) failed: %s (%d)\n",
|
|
bdb->bi_dbenv_home, db_strerror(rc), rc );
|
|
return rc;
|
|
}
|
|
|
|
rc = db->bdi_db->open( db->bdi_db,
|
|
bdbi_databases[i].file,
|
|
bdbi_databases[i].name,
|
|
bdbi_databases[i].type,
|
|
bdbi_databases[i].flags | flags,
|
|
bdb->bi_dbenv_mode );
|
|
|
|
if( rc != 0 ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_open: db_open(%s) failed: %s (%d)\n",
|
|
bdb->bi_dbenv_home, db_strerror(rc), rc );
|
|
return rc;
|
|
}
|
|
|
|
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,
|
|
"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 */
|
|
|
|
#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;
|
|
}
|
|
|
|
static int
|
|
bdb_db_close( BackendDB *be )
|
|
{
|
|
int rc;
|
|
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
|
|
|
|
/* force a checkpoint */
|
|
if (bdb->bi_txn) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
while( bdb->bi_ndatabases-- ) {
|
|
rc = bdb->bi_databases[bdb->bi_ndatabases]->bdi_db->close(
|
|
bdb->bi_databases[bdb->bi_ndatabases]->bdi_db, 0 );
|
|
}
|
|
|
|
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 ) {
|
|
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;
|
|
}
|
|
|
|
#ifdef SLAPD_BDB_DYNAMIC
|
|
int back_bdb_LTX_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
|
|
)
|
|
{
|
|
static char *controls[] = {
|
|
LDAP_CONTROL_MANAGEDSAIT,
|
|
NULL
|
|
};
|
|
|
|
{ /* version check */
|
|
int major, minor, patch;
|
|
char *version = db_version( &major, &minor, &patch );
|
|
|
|
if( major != DB_VERSION_MAJOR ||
|
|
minor != DB_VERSION_MINOR ||
|
|
patch < DB_VERSION_PATCH )
|
|
{
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bi_back_initialize: version mismatch\n"
|
|
"\texpected: " DB_VERSION_STRING "\n"
|
|
"\tgot: %s \n", version, 0, 0 );
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
|
|
version, 0, 0 );
|
|
}
|
|
|
|
#if 0
|
|
db_env_set_func_malloc( ch_malloc );
|
|
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;
|
|
|
|
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_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_modify = bdb_modify;
|
|
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_extended = bdb_extended;
|
|
#endif
|
|
bi->bi_acl_group = bdb_group;
|
|
bi->bi_acl_attribute = bdb_attribute;
|
|
bi->bi_chk_referrals = bdb_referrals;
|
|
|
|
bi->bi_entry_release_rw = 0;
|
|
|
|
/*
|
|
* hooks for slap tools
|
|
*/
|
|
bi->bi_tool_entry_open = bdb_tool_entry_open;
|
|
bi->bi_tool_entry_close = bdb_tool_entry_close;
|
|
bi->bi_tool_entry_first = bdb_tool_entry_next;
|
|
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 = bdb_tool_entry_reindex;
|
|
bi->bi_tool_sync = 0;
|
|
|
|
bi->bi_connection_init = 0;
|
|
bi->bi_connection_destroy = 0;
|
|
|
|
return 0;
|
|
}
|