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216049bd12
Separates per backend type from per backend database initialization and startup. Also supports per type / per backend shutdown. New frontend startup/shutdown routines are also provided: slap_init() slap_startup() slap_shutdown() slap_destroy() New frontend->backend startup/shutdown is managed by: backend_init() backend_startup() backend_shutdown backend_destroy backend_init() now calls bi_init() to initial all function pointers for the backend (excepting bi_init() which is now the only hardcoded entry point). New entry points are detailed in slap.h struct backend_info. backend_info is a per database type structure. Besides the new startup/shutdown entry points, the new interface also supports per backend type configuration options. One could have: backend bdb2 (new Berkeley DB 2 backend) bdb2_home /directory database bdb2 ... *** This code is fairly experimental *** *** Much cleanup and testing is still needed *** see slap.h for details on struct backend_db and backend_info.
163 lines
3.2 KiB
C
163 lines
3.2 KiB
C
/* init.c - initialize ldbm backend */
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "back-ldbm.h"
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int
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ldbm_back_initialize(
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BackendInfo *bi
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)
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{
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bi->bi_open = ldbm_back_open;
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bi->bi_config = NULL;
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bi->bi_close = ldbm_back_close;
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bi->bi_destroy = ldbm_back_destroy;
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bi->bi_db_init = ldbm_back_db_init;
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bi->bi_db_config = ldbm_back_db_config;
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bi->bi_db_open = ldbm_back_db_open;
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bi->bi_db_close = ldbm_back_db_close;
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bi->bi_db_destroy = ldbm_back_db_destroy;
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bi->bi_op_bind = ldbm_back_bind;
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bi->bi_op_unbind = ldbm_back_unbind;
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bi->bi_op_search = ldbm_back_search;
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bi->bi_op_compare = ldbm_back_compare;
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bi->bi_op_modify = ldbm_back_modify;
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bi->bi_op_modrdn = ldbm_back_modrdn;
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bi->bi_op_add = ldbm_back_add;
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bi->bi_op_delete = ldbm_back_delete;
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bi->bi_op_abandon = ldbm_back_abandon;
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bi->bi_acl_group = ldbm_back_group;
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return 0;
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}
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int
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ldbm_back_destroy(
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BackendInfo *bi
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)
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{
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return 0;
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}
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int
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ldbm_back_open(
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BackendInfo *bi
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)
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{
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int rc;
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/* initialize the underlying database system */
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rc = ldbm_initialize();
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return rc;
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}
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int
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ldbm_back_close(
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BackendInfo *bi
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)
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{
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/* initialize the underlying database system */
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ldbm_shutdown();
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return 0;
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}
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int
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ldbm_back_db_init(
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Backend *be
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)
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{
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struct ldbminfo *li;
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char *argv[ 4 ];
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int i;
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/* allocate backend-specific stuff */
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li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
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/* arrange to read nextid later (on first request for it) */
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li->li_nextid = NOID;
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#if SLAPD_NEXTID_CHUNK > 1
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li->li_nextid_wrote = NOID;
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#endif
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/* default cache size */
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li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
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/* default database cache size */
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li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
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/* default cache mode is sync on write */
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li->li_dbcachewsync = 1;
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/* default file creation mode */
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li->li_mode = DEFAULT_MODE;
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/* default database directory */
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li->li_directory = DEFAULT_DB_DIRECTORY;
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/* always index dn, id2children, objectclass (used in some searches) */
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argv[ 0 ] = "dn";
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argv[ 1 ] = "dn";
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argv[ 2 ] = NULL;
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attr_syntax_config( "ldbm dn initialization", 0, 2, argv );
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argv[ 0 ] = "dn";
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argv[ 1 ] = "sub";
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argv[ 2 ] = "eq";
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argv[ 3 ] = NULL;
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attr_index_config( li, "ldbm dn initialization", 0, 3, argv, 1 );
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argv[ 0 ] = "id2children";
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argv[ 1 ] = "eq";
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argv[ 2 ] = NULL;
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attr_index_config( li, "ldbm id2children initialization", 0, 2, argv,
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1 );
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argv[ 0 ] = "objectclass";
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argv[ 1 ] = ch_strdup( "pres,eq" );
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argv[ 2 ] = NULL;
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attr_index_config( li, "ldbm objectclass initialization", 0, 2, argv,
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1 );
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free( argv[ 1 ] );
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/* initialize various mutex locks & condition variables */
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ldap_pvt_thread_mutex_init( &li->li_root_mutex );
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ldap_pvt_thread_mutex_init( &li->li_add_mutex );
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ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex );
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ldap_pvt_thread_mutex_init( &li->li_nextid_mutex );
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ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex );
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ldap_pvt_thread_cond_init( &li->li_dbcache_cv );
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be->be_private = li;
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return 0;
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}
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int
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ldbm_back_db_open(
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BackendDB *be
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)
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{
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return 0;
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}
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int
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ldbm_back_db_destroy(
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BackendDB *be
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)
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{
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/* should free/destroy every in be_private */
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free( be->be_private );
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be->be_private = NULL;
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return 0;
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}
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