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 = NULL;
  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         return 0;
  89 }
  90
  91 int
  92 ldbm_back_destroy(
  93     BackendInfo *bi
  94 )
  95 {
  96         return 0;
  97 }
  98
  99 int
 100 ldbm_back_open(
 101     BackendInfo *bi
 102 )
 103 {
 104         int rc;
 105
 106         /* initialize the underlying database system */
 107         rc = ldbm_initialize( NULL );
 108         return rc;
 109 }
 110
 111 int
 112 ldbm_back_close(
 113     BackendInfo *bi
 114 )
 115 {
 116         /* terminate the underlying database system */
 117         ldbm_shutdown();
 118         return 0;
 119 }
 120
 121 int
 122 ldbm_back_db_init(
 123     Backend     *be
 124 )
 125 {
 126         struct ldbminfo *li;
 127
 128         /* allocate backend-database-specific stuff */
 129         li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
 130
 131         /* arrange to read nextid later (on first request for it) */
 132         li->li_nextid = NOID;
 133
 134         /* default cache size */
 135         li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
 136
 137         /* default database cache size */
 138         li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
 139
 140         /* default db mode is with locking */
 141         li->li_dblocking = 1;
 142
 143         /* default db mode is with write synchronization */
 144         li->li_dbwritesync = 1;
 145
 146         /* default file creation mode */
 147         li->li_mode = DEFAULT_MODE;
 148
 149         /* default database directory */
 150         li->li_directory = ch_strdup( DEFAULT_DB_DIRECTORY );
 151
 152         /* DB_ENV environment pointer for DB3 */
 153         li->li_dbenv = 0;
 154
 155         /* envdirok is turned on by ldbm_initialize_env if DB3 */
 156         li->li_envdirok = 0;
 157
 158         /* syncfreq is 0 if disabled, or # seconds */
 159         li->li_dbsyncfreq = 0;
 160
 161         /* wait up to dbsyncwaitn times if server is busy */
 162         li->li_dbsyncwaitn = 12;
 163
 164         /* delay interval */
 165         li->li_dbsyncwaitinterval = 5;
 166
 167         /* flag to notify ldbm_cache_sync_daemon to shut down */
 168         li->li_dbshutdown = 0;
 169
 170         /* initialize various mutex locks & condition variables */
 171         ldap_pvt_thread_mutex_init( &li->li_root_mutex );
 172         ldap_pvt_thread_mutex_init( &li->li_add_mutex );
 173         ldap_pvt_thread_mutex_init( &li->li_cache.c_mutex );
 174         ldap_pvt_thread_mutex_init( &li->li_nextid_mutex );
 175         ldap_pvt_thread_mutex_init( &li->li_dbcache_mutex );
 176         ldap_pvt_thread_cond_init( &li->li_dbcache_cv );
 177
 178         be->be_private = li;
 179
 180         return 0;
 181 }
 182
 183 int
 184 ldbm_back_db_open(
 185     BackendDB   *be
 186 )
 187 {
 188         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
 189         li->li_dbenv = ldbm_initialize_env( li->li_directory,
 190                 li->li_dbcachesize, &li->li_envdirok );
 191
 192         /* sync thread */
 193         if ( li->li_dbsyncfreq > 0 )
 194         {
 195                 int rc;
 196                 rc = ldap_pvt_thread_create( &li->li_dbsynctid,
 197                         0, ldbm_cache_sync_daemon, (void*)be );
 198
 199                 if ( rc != 0 )
 200                 {
 201                         Debug(  LDAP_DEBUG_ANY,
 202                                 "sync ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
 203                         return 1;
 204                 }
 205         }
 206
 207         return 0;
 208 }
 209
 210 int
 211 ldbm_back_db_destroy(
 212     BackendDB   *be
 213 )
 214 {
 215         /* should free/destroy every in be_private */
 216         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
 217
 218         if (li->li_dbenv)
 219             ldbm_shutdown_env(li->li_dbenv);
 220
 221         free( li->li_directory );
 222         attr_index_destroy( li->li_attrs );
 223
 224         ldap_pvt_thread_mutex_destroy( &li->li_root_mutex );
 225         ldap_pvt_thread_mutex_destroy( &li->li_add_mutex );
 226         ldap_pvt_thread_mutex_destroy( &li->li_cache.c_mutex );
 227         ldap_pvt_thread_mutex_destroy( &li->li_nextid_mutex );
 228         ldap_pvt_thread_mutex_destroy( &li->li_dbcache_mutex );
 229         ldap_pvt_thread_cond_destroy( &li->li_dbcache_cv );
 230
 231         free( be->be_private );
 232         be->be_private = NULL;
 233
 234         return 0;
 235 }