git.sur5r.net Git - openldap/blob - servers/slapd/back-ldbm/init.c

   1 /* init.c - initialize ldbm backend */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/socket.h>
  14
  15 #include "slap.h"
  16 #include "back-ldbm.h"
  17
  18 #ifdef SLAPD_LDBM_DYNAMIC
  19
  20 int back_ldbm_LTX_init_module(int argc, char *argv[]) {
  21     BackendInfo bi;
  22
  23     memset( &bi, '\0', sizeof(bi) );
  24     bi.bi_type = "ldbm";
  25     bi.bi_init = ldbm_back_initialize;
  26
  27     backend_add(&bi);
  28     return 0;
  29 }
  30
  31 #endif /* SLAPD_LDBM_DYNAMIC */
  32
  33 int
  34 ldbm_back_initialize(
  35     BackendInfo *bi
  36 )
  37 {
  38         static char *controls[] = {
  39                 LDAP_CONTROL_MANAGEDSAIT,
  40                 NULL
  41         };
  42
  43         bi->bi_controls = controls;
  44
  45         bi->bi_open = ldbm_back_open;
  46         bi->bi_config = ldbm_back_config;
  47         bi->bi_close = ldbm_back_close;
  48         bi->bi_destroy = ldbm_back_destroy;
  49
  50         bi->bi_db_init = ldbm_back_db_init;
  51         bi->bi_db_config = ldbm_back_db_config;
  52         bi->bi_db_open = ldbm_back_db_open;
  53         bi->bi_db_close = ldbm_back_db_close;
  54         bi->bi_db_destroy = ldbm_back_db_destroy;
  55
  56         bi->bi_op_bind = ldbm_back_bind;
  57         bi->bi_op_unbind = ldbm_back_unbind;
  58         bi->bi_op_search = ldbm_back_search;
  59         bi->bi_op_compare = ldbm_back_compare;
  60         bi->bi_op_modify = ldbm_back_modify;
  61         bi->bi_op_modrdn = ldbm_back_modrdn;
  62         bi->bi_op_add = ldbm_back_add;
  63         bi->bi_op_delete = ldbm_back_delete;
  64         bi->bi_op_abandon = ldbm_back_abandon;
  65
  66         bi->bi_extended = ldbm_back_extended;
  67
  68         bi->bi_entry_release_rw = ldbm_back_entry_release_rw;
  69         bi->bi_acl_group = ldbm_back_group;
  70         bi->bi_acl_attribute = ldbm_back_attribute;
  71         bi->bi_chk_referrals = ldbm_back_referrals;
  72
  73         /*
  74          * hooks for slap tools
  75          */
  76         bi->bi_tool_entry_open = ldbm_tool_entry_open;
  77         bi->bi_tool_entry_close = ldbm_tool_entry_close;
  78         bi->bi_tool_entry_first = ldbm_tool_entry_first;
  79         bi->bi_tool_entry_next = ldbm_tool_entry_next;
  80         bi->bi_tool_entry_get = ldbm_tool_entry_get;
  81         bi->bi_tool_entry_put = ldbm_tool_entry_put;
  82         bi->bi_tool_entry_reindex = ldbm_tool_entry_reindex;
  83         bi->bi_tool_sync = ldbm_tool_sync;
  84
  85         bi->bi_connection_init = 0;
  86         bi->bi_connection_destroy = 0;
  87
  88         {
  89                 struct ldbm_backend_info *lbi = malloc(
  90                         sizeof( struct ldbm_backend_info ) );
  91
  92                 bi->bi_private = lbi;
  93                 lbi->lbi_directory = NULL;
  94         }
  95
  96         return 0;
  97 }
  98
  99 int
 100 ldbm_back_destroy(
 101     BackendInfo *bi
 102 )
 103 {
 104         return 0;
 105 }
 106
 107 int
 108 ldbm_back_open(
 109     BackendInfo *bi
 110 )
 111 {
 112         int rc;
 113
 114         struct ldbm_backend_info *lbi
 115                 = (struct ldbm_backend_info *) bi->bi_private;
 116
 117         /* initialize the underlying database system */
 118         rc = ldbm_initialize( lbi->lbi_directory );
 119         return rc;
 120 }
 121
 122 int
 123 ldbm_back_close(
 124     BackendInfo *bi
 125 )
 126 {
 127         /* terminate the underlying database system */
 128         ldbm_shutdown();
 129         return 0;
 130 }
 131
 132 int
 133 ldbm_back_db_init(
 134     Backend     *be
 135 )
 136 {
 137         struct ldbminfo *li;
 138
 139         /* allocate backend-database-specific stuff */
 140         li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
 141
 142         /* arrange to read nextid later (on first request for it) */
 143         li->li_nextid = NOID;
 144
 145         /* default cache size */
 146         li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
 147
 148         /* default database cache size */
 149         li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
 150
 151         /* default db mode is with locking */
 152         li->li_dblocking = 1;
 153
 154         /* default db mode is with write synchronization */
 155         li->li_dbwritesync = 1;
 156
 157         /* default file creation mode */
 158         li->li_mode = DEFAULT_MODE;
 159
 160         /* default database directory */
 161         li->li_directory = ch_strdup( DEFAULT_DB_DIRECTORY );
 162
 163         /* DB_ENV environment pointer for DB3 */
 164         li->li_dbenv = 0;
 165
 166         /* envdirok is turned on by ldbm_initialize_env if DB3 */
 167         li->li_envdirok = 0;
 168
 169         /* initialize various mutex locks & condition variables */
 170         ldap_pvt_thread_mutex_init( &li->li_root_mutex );
 171         ldap_pvt_thread_mutex_init( &li->li_add_mutex );
 172         ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex );
 173         ldap_pvt_thread_mutex_init( &li->li_nextid_mutex );
 174         ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex );
 175         ldap_pvt_thread_cond_init( &li->li_dbcache_cv );
 176
 177         be->be_private = li;
 178
 179         return 0;
 180 }
 181
 182 int
 183 ldbm_back_db_open(
 184     BackendDB   *be
 185 )
 186 {
 187         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
 188         li->li_dbenv = ldbm_initialize_env(li->li_directory,
 189                 li->li_dbcachesize, &li->li_envdirok);
 190         return 0;
 191 }
 192
 193 int
 194 ldbm_back_db_destroy(
 195     BackendDB   *be
 196 )
 197 {
 198         /* should free/destroy every in be_private */
 199         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
 200
 201         ldbm_shutdown_env(li->li_dbenv);
 202
 203         free( li->li_directory );
 204         attr_index_destroy( li->li_attrs );
 205
 206         ldap_pvt_thread_mutex_destroy( &li->li_root_mutex );
 207         ldap_pvt_thread_mutex_destroy( &li->li_add_mutex );
 208         ldap_pvt_thread_mutex_destroy( &li->li_cache.c_mutex );
 209         ldap_pvt_thread_mutex_destroy( &li->li_nextid_mutex );
 210         ldap_pvt_thread_mutex_destroy( &li->li_dbcache_mutex );
 211         ldap_pvt_thread_cond_destroy( &li->li_dbcache_cv );
 212
 213         free( be->be_private );
 214         be->be_private = NULL;
 215
 216         return 0;
 217 }