diff options
Diffstat (limited to '')
| -rw-r--r-- | servers/slapd/back-mdb/config.c | 694 |
1 files changed, 694 insertions, 0 deletions
diff --git a/servers/slapd/back-mdb/config.c b/servers/slapd/back-mdb/config.c new file mode 100644 index 0000000..ded7a08 --- /dev/null +++ b/servers/slapd/back-mdb/config.c @@ -0,0 +1,694 @@ +/* config.c - mdb backend configuration file routine */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2018 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +#include "portable.h" + +#include <stdio.h> +#include <ac/ctype.h> +#include <ac/string.h> +#include <ac/errno.h> + +#include "back-mdb.h" + +#include "config.h" + +#include "lutil.h" +#include "ldap_rq.h" + +static ConfigDriver mdb_cf_gen; + +enum { + MDB_CHKPT = 1, + MDB_DIRECTORY, + MDB_DBNOSYNC, + MDB_ENVFLAGS, + MDB_INDEX, + MDB_MAXREADERS, + MDB_MAXSIZE, + MDB_MODE, + MDB_SSTACK +}; + +static ConfigTable mdbcfg[] = { + { "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|MDB_DIRECTORY, + mdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' " + "DESC 'Directory for database content' " + "EQUALITY caseIgnoreMatch " + "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL }, + { "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|MDB_CHKPT, + mdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' " + "DESC 'Database checkpoint interval in kbytes and minutes' " + "SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL }, + { "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|MDB_DBNOSYNC, + mdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' " + "DESC 'Disable synchronous database writes' " + "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL }, + { "envflags", "flags", 2, 0, 0, ARG_MAGIC|MDB_ENVFLAGS, + mdb_cf_gen, "( OLcfgDbAt:12.3 NAME 'olcDbEnvFlags' " + "DESC 'Database environment flags' " + "EQUALITY caseIgnoreMatch " + "SYNTAX OMsDirectoryString )", NULL, NULL }, + { "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|MDB_INDEX, + mdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' " + "DESC 'Attribute index parameters' " + "EQUALITY caseIgnoreMatch " + "SYNTAX OMsDirectoryString )", NULL, NULL }, + { "maxreaders", "num", 2, 2, 0, ARG_UINT|ARG_MAGIC|MDB_MAXREADERS, + mdb_cf_gen, "( OLcfgDbAt:12.1 NAME 'olcDbMaxReaders' " + "DESC 'Maximum number of threads that may access the DB concurrently' " + "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL }, + { "maxsize", "size", 2, 2, 0, ARG_ULONG|ARG_MAGIC|MDB_MAXSIZE, + mdb_cf_gen, "( OLcfgDbAt:12.2 NAME 'olcDbMaxSize' " + "DESC 'Maximum size of DB in bytes' " + "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL }, + { "mode", "mode", 2, 2, 0, ARG_MAGIC|MDB_MODE, + mdb_cf_gen, "( OLcfgDbAt:0.3 NAME 'olcDbMode' " + "DESC 'Unix permissions of database files' " + "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL }, + { "rtxnsize", "entries", 2, 2, 0, ARG_UINT|ARG_OFFSET, + (void *)offsetof(struct mdb_info, mi_rtxn_size), + "( OLcfgDbAt:12.5 NAME 'olcDbRtxnSize' " + "DESC 'Number of entries to process in one read transaction' " + "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL }, + { "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|MDB_SSTACK, + mdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' " + "DESC 'Depth of search stack in IDLs' " + "SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL }, + { NULL, NULL, 0, 0, 0, ARG_IGNORED, + NULL, NULL, NULL, NULL } +}; + +static ConfigOCs mdbocs[] = { + { + "( OLcfgDbOc:12.1 " + "NAME 'olcMdbConfig' " + "DESC 'MDB backend configuration' " + "SUP olcDatabaseConfig " + "MUST olcDbDirectory " + "MAY ( olcDbCheckpoint $ olcDbEnvFlags $ " + "olcDbNoSync $ olcDbIndex $ olcDbMaxReaders $ olcDbMaxSize $ " + "olcDbMode $ olcDbSearchStack $ olcDbRtxnSize ) )", + Cft_Database, mdbcfg }, + { NULL, 0, NULL } +}; + +static slap_verbmasks mdb_envflags[] = { + { BER_BVC("nosync"), MDB_NOSYNC }, + { BER_BVC("nometasync"), MDB_NOMETASYNC }, + { BER_BVC("writemap"), MDB_WRITEMAP }, + { BER_BVC("mapasync"), MDB_MAPASYNC }, + { BER_BVC("nordahead"), MDB_NORDAHEAD }, + { BER_BVNULL, 0 } +}; + +/* perform periodic syncs */ +static void * +mdb_checkpoint( void *ctx, void *arg ) +{ + struct re_s *rtask = arg; + struct mdb_info *mdb = rtask->arg; + + mdb_env_sync( mdb->mi_dbenv, 1 ); + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + ldap_pvt_runqueue_stoptask( &slapd_rq, rtask ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + return NULL; +} + +/* reindex entries on the fly */ +static void * +mdb_online_index( void *ctx, void *arg ) +{ + struct re_s *rtask = arg; + BackendDB *be = rtask->arg; + struct mdb_info *mdb = be->be_private; + + Connection conn = {0}; + OperationBuffer opbuf; + Operation *op; + + MDB_cursor *curs; + MDB_val key, data; + MDB_txn *txn; + ID id; + Entry *e; + int rc, getnext = 1; + int i; + + connection_fake_init( &conn, &opbuf, ctx ); + op = &opbuf.ob_op; + + op->o_bd = be; + + id = 1; + key.mv_size = sizeof(ID); + + while ( 1 ) { + if ( slapd_shutdown ) + break; + + rc = mdb_txn_begin( mdb->mi_dbenv, NULL, 0, &txn ); + if ( rc ) + break; + rc = mdb_cursor_open( txn, mdb->mi_id2entry, &curs ); + if ( rc ) { + mdb_txn_abort( txn ); + break; + } + if ( getnext ) { + getnext = 0; + key.mv_data = &id; + rc = mdb_cursor_get( curs, &key, &data, MDB_SET_RANGE ); + if ( rc ) { + mdb_txn_abort( txn ); + if ( rc == MDB_NOTFOUND ) + rc = 0; + break; + } + memcpy( &id, key.mv_data, sizeof( id )); + } + + rc = mdb_id2entry( op, curs, id, &e ); + mdb_cursor_close( curs ); + if ( rc ) { + mdb_txn_abort( txn ); + if ( rc == MDB_NOTFOUND ) { + id++; + getnext = 1; + continue; + } + break; + } + rc = mdb_index_entry( op, txn, MDB_INDEX_UPDATE_OP, e ); + mdb_entry_return( op, e ); + if ( rc == 0 ) { + rc = mdb_txn_commit( txn ); + txn = NULL; + } else { + mdb_txn_abort( txn ); + txn = NULL; + } + if ( rc ) { + Debug( LDAP_DEBUG_ANY, + LDAP_XSTRING(mdb_online_index) ": database %s: " + "txn_commit failed: %s (%d)\n", + be->be_suffix[0].bv_val, mdb_strerror(rc), rc ); + break; + } + id++; + getnext = 1; + } + + for ( i = 0; i < mdb->mi_nattrs; i++ ) { + if ( mdb->mi_attrs[ i ]->ai_indexmask & MDB_INDEX_DELETING + || mdb->mi_attrs[ i ]->ai_newmask == 0 ) + { + continue; + } + mdb->mi_attrs[ i ]->ai_indexmask = mdb->mi_attrs[ i ]->ai_newmask; + mdb->mi_attrs[ i ]->ai_newmask = 0; + } + + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + ldap_pvt_runqueue_stoptask( &slapd_rq, rtask ); + mdb->mi_index_task = NULL; + ldap_pvt_runqueue_remove( &slapd_rq, rtask ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + + return NULL; +} + +/* Cleanup loose ends after Modify completes */ +static int +mdb_cf_cleanup( ConfigArgs *c ) +{ + struct mdb_info *mdb = c->be->be_private; + int rc = 0; + + if ( mdb->mi_flags & MDB_DEL_INDEX ) { + mdb_attr_flush( mdb ); + mdb->mi_flags ^= MDB_DEL_INDEX; + } + + if ( mdb->mi_flags & MDB_RE_OPEN ) { + mdb->mi_flags ^= MDB_RE_OPEN; + rc = c->be->bd_info->bi_db_close( c->be, &c->reply ); + if ( rc == 0 ) + rc = c->be->bd_info->bi_db_open( c->be, &c->reply ); + /* If this fails, we need to restart */ + if ( rc ) { + slapd_shutdown = 2; + snprintf( c->cr_msg, sizeof( c->cr_msg ), + "failed to reopen database, rc=%d", rc ); + Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(mdb_cf_cleanup) + ": %s\n", c->cr_msg, 0, 0 ); + rc = LDAP_OTHER; + } + } + + if ( mdb->mi_flags & MDB_OPEN_INDEX ) { + rc = mdb_attr_dbs_open( c->be, NULL, &c->reply ); + if ( rc ) + rc = LDAP_OTHER; + } + return rc; +} + +static int +mdb_cf_gen( ConfigArgs *c ) +{ + struct mdb_info *mdb = c->be->be_private; + int rc; + + if ( c->op == SLAP_CONFIG_EMIT ) { + rc = 0; + switch( c->type ) { + case MDB_MODE: { + char buf[64]; + struct berval bv; + bv.bv_len = snprintf( buf, sizeof(buf), "0%o", mdb->mi_dbenv_mode ); + if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) { + bv.bv_val = buf; + value_add_one( &c->rvalue_vals, &bv ); + } else { + rc = 1; + } + } break; + + case MDB_CHKPT: + if ( mdb->mi_txn_cp ) { + char buf[64]; + struct berval bv; + bv.bv_len = snprintf( buf, sizeof(buf), "%ld %ld", + (long) mdb->mi_txn_cp_kbyte, (long) mdb->mi_txn_cp_min ); + if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) { + bv.bv_val = buf; + value_add_one( &c->rvalue_vals, &bv ); + } else { + rc = 1; + } + } else { + rc = 1; + } + break; + + case MDB_DIRECTORY: + if ( mdb->mi_dbenv_home ) { + c->value_string = ch_strdup( mdb->mi_dbenv_home ); + } else { + rc = 1; + } + break; + + case MDB_DBNOSYNC: + if ( mdb->mi_dbenv_flags & MDB_NOSYNC ) + c->value_int = 1; + break; + + case MDB_ENVFLAGS: + if ( mdb->mi_dbenv_flags ) { + mask_to_verbs( mdb_envflags, mdb->mi_dbenv_flags, &c->rvalue_vals ); + } + if ( !c->rvalue_vals ) rc = 1; + break; + + case MDB_INDEX: + mdb_attr_index_unparse( mdb, &c->rvalue_vals ); + if ( !c->rvalue_vals ) rc = 1; + break; + + case MDB_SSTACK: + c->value_int = mdb->mi_search_stack_depth; + break; + + case MDB_MAXREADERS: + c->value_int = mdb->mi_readers; + break; + + case MDB_MAXSIZE: + c->value_ulong = mdb->mi_mapsize; + break; + } + return rc; + } else if ( c->op == LDAP_MOD_DELETE ) { + rc = 0; + switch( c->type ) { + case MDB_MODE: +#if 0 + /* FIXME: does it make any sense to change the mode, + * if we don't exec a chmod()? */ + mdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE; + break; +#endif + + /* single-valued no-ops */ + case MDB_SSTACK: + case MDB_MAXREADERS: + case MDB_MAXSIZE: + break; + + case MDB_CHKPT: + if ( mdb->mi_txn_cp_task ) { + struct re_s *re = mdb->mi_txn_cp_task; + mdb->mi_txn_cp_task = NULL; + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) ) + ldap_pvt_runqueue_stoptask( &slapd_rq, re ); + ldap_pvt_runqueue_remove( &slapd_rq, re ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + } + mdb->mi_txn_cp = 0; + break; + case MDB_DIRECTORY: + mdb->mi_flags |= MDB_RE_OPEN; + ch_free( mdb->mi_dbenv_home ); + mdb->mi_dbenv_home = NULL; + c->cleanup = mdb_cf_cleanup; + ldap_pvt_thread_pool_purgekey( mdb->mi_dbenv ); + break; + case MDB_DBNOSYNC: + mdb_env_set_flags( mdb->mi_dbenv, MDB_NOSYNC, 0 ); + mdb->mi_dbenv_flags &= ~MDB_NOSYNC; + break; + + case MDB_ENVFLAGS: + if ( c->valx == -1 ) { + int i; + for ( i=0; mdb_envflags[i].mask; i++) { + if ( mdb->mi_dbenv_flags & mdb_envflags[i].mask ) { + /* not all flags are runtime resettable */ + rc = mdb_env_set_flags( mdb->mi_dbenv, mdb_envflags[i].mask, 0 ); + if ( rc ) { + mdb->mi_flags |= MDB_RE_OPEN; + c->cleanup = mdb_cf_cleanup; + rc = 0; + } + mdb->mi_dbenv_flags ^= mdb_envflags[i].mask; + } + } + } else { + int i = verb_to_mask( c->line, mdb_envflags ); + if ( mdb_envflags[i].mask & mdb->mi_dbenv_flags ) { + rc = mdb_env_set_flags( mdb->mi_dbenv, mdb_envflags[i].mask, 0 ); + if ( rc ) { + mdb->mi_flags |= MDB_RE_OPEN; + c->cleanup = mdb_cf_cleanup; + rc = 0; + } + mdb->mi_dbenv_flags ^= mdb_envflags[i].mask; + } else { + /* unknown keyword */ + snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: unknown keyword \"%s\"", + c->argv[0], c->argv[i] ); + Debug( LDAP_DEBUG_CONFIG, "%s %s\n", c->log, c->cr_msg, 0 ); + rc = 1; + } + } + break; + + case MDB_INDEX: + if ( c->valx == -1 ) { + int i; + + /* delete all */ + for ( i = 0; i < mdb->mi_nattrs; i++ ) { + mdb->mi_attrs[i]->ai_indexmask |= MDB_INDEX_DELETING; + } + mdb->mi_defaultmask = 0; + mdb->mi_flags |= MDB_DEL_INDEX; + c->cleanup = mdb_cf_cleanup; + + } else { + struct berval bv, def = BER_BVC("default"); + char *ptr; + + for (ptr = c->line; !isspace( (unsigned char) *ptr ); ptr++); + + bv.bv_val = c->line; + bv.bv_len = ptr - bv.bv_val; + if ( bvmatch( &bv, &def )) { + mdb->mi_defaultmask = 0; + + } else { + int i; + char **attrs; + char sep; + + sep = bv.bv_val[ bv.bv_len ]; + bv.bv_val[ bv.bv_len ] = '\0'; + attrs = ldap_str2charray( bv.bv_val, "," ); + + for ( i = 0; attrs[ i ]; i++ ) { + AttributeDescription *ad = NULL; + const char *text; + AttrInfo *ai; + + slap_str2ad( attrs[ i ], &ad, &text ); + /* if we got here... */ + assert( ad != NULL ); + + ai = mdb_attr_mask( mdb, ad ); + /* if we got here... */ + assert( ai != NULL ); + + ai->ai_indexmask |= MDB_INDEX_DELETING; + mdb->mi_flags |= MDB_DEL_INDEX; + c->cleanup = mdb_cf_cleanup; + } + + bv.bv_val[ bv.bv_len ] = sep; + ldap_charray_free( attrs ); + } + } + break; + } + return rc; + } + + switch( c->type ) { + case MDB_MODE: + if ( ASCII_DIGIT( c->argv[1][0] ) ) { + long mode; + char *next; + errno = 0; + mode = strtol( c->argv[1], &next, 0 ); + if ( errno != 0 || next == c->argv[1] || next[0] != '\0' ) { + fprintf( stderr, "%s: " + "unable to parse mode=\"%s\".\n", + c->log, c->argv[1] ); + return 1; + } + mdb->mi_dbenv_mode = mode; + + } else { + char *m = c->argv[1]; + int who, what, mode = 0; + + if ( strlen( m ) != STRLENOF("-rwxrwxrwx") ) { + return 1; + } + + if ( m[0] != '-' ) { + return 1; + } + + m++; + for ( who = 0; who < 3; who++ ) { + for ( what = 0; what < 3; what++, m++ ) { + if ( m[0] == '-' ) { + continue; + } else if ( m[0] != "rwx"[what] ) { + return 1; + } + mode += ((1 << (2 - what)) << 3*(2 - who)); + } + } + mdb->mi_dbenv_mode = mode; + } + break; + case MDB_CHKPT: { + long l; + mdb->mi_txn_cp = 1; + if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) { + fprintf( stderr, "%s: " + "invalid kbyte \"%s\" in \"checkpoint\".\n", + c->log, c->argv[1] ); + return 1; + } + mdb->mi_txn_cp_kbyte = l; + if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) { + fprintf( stderr, "%s: " + "invalid minutes \"%s\" in \"checkpoint\".\n", + c->log, c->argv[2] ); + return 1; + } + mdb->mi_txn_cp_min = l; + /* If we're in server mode and time-based checkpointing is enabled, + * submit a task to perform periodic checkpoints. + */ + if ((slapMode & SLAP_SERVER_MODE) && mdb->mi_txn_cp_min ) { + struct re_s *re = mdb->mi_txn_cp_task; + if ( re ) { + re->interval.tv_sec = mdb->mi_txn_cp_min * 60; + } else { + if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) { + fprintf( stderr, "%s: " + "\"checkpoint\" must occur after \"suffix\".\n", + c->log ); + return 1; + } + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + mdb->mi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq, + mdb->mi_txn_cp_min * 60, mdb_checkpoint, mdb, + LDAP_XSTRING(mdb_checkpoint), c->be->be_suffix[0].bv_val ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + } + } + } break; + + case MDB_DIRECTORY: { + FILE *f; + char *ptr, *testpath; + int len; + + len = strlen( c->value_string ); + testpath = ch_malloc( len + STRLENOF(LDAP_DIRSEP) + STRLENOF("DUMMY") + 1 ); + ptr = lutil_strcopy( testpath, c->value_string ); + *ptr++ = LDAP_DIRSEP[0]; + strcpy( ptr, "DUMMY" ); + f = fopen( testpath, "w" ); + if ( f ) { + fclose( f ); + unlink( testpath ); + } + ch_free( testpath ); + if ( !f ) { + snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: invalid path: %s", + c->log, strerror( errno )); + Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 ); + return -1; + } + + if ( mdb->mi_dbenv_home ) + ch_free( mdb->mi_dbenv_home ); + mdb->mi_dbenv_home = c->value_string; + + } + break; + + case MDB_DBNOSYNC: + if ( c->value_int ) + mdb->mi_dbenv_flags |= MDB_NOSYNC; + else + mdb->mi_dbenv_flags ^= MDB_NOSYNC; + if ( mdb->mi_flags & MDB_IS_OPEN ) { + mdb_env_set_flags( mdb->mi_dbenv, MDB_NOSYNC, + c->value_int ); + } + break; + + case MDB_ENVFLAGS: { + int i, j; + for ( i=1; i<c->argc; i++ ) { + j = verb_to_mask( c->argv[i], mdb_envflags ); + if ( mdb_envflags[j].mask ) { + if ( mdb->mi_flags & MDB_IS_OPEN ) + rc = mdb_env_set_flags( mdb->mi_dbenv, mdb_envflags[j].mask, 1 ); + else + rc = 0; + if ( rc ) { + mdb->mi_flags |= MDB_RE_OPEN; + c->cleanup = mdb_cf_cleanup; + rc = 0; + } + mdb->mi_dbenv_flags |= mdb_envflags[j].mask; + } else { + /* unknown keyword */ + snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: unknown keyword \"%s\"", + c->argv[0], c->argv[i] ); + Debug( LDAP_DEBUG_ANY, "%s %s\n", c->log, c->cr_msg, 0 ); + return 1; + } + } + } + break; + + case MDB_INDEX: + rc = mdb_attr_index_config( mdb, c->fname, c->lineno, + c->argc - 1, &c->argv[1], &c->reply); + + if( rc != LDAP_SUCCESS ) return 1; + mdb->mi_flags |= MDB_OPEN_INDEX; + if ( mdb->mi_flags & MDB_IS_OPEN ) { + c->cleanup = mdb_cf_cleanup; + if ( !mdb->mi_index_task ) { + /* Start the task as soon as we finish here. Set a long + * interval (10 hours) so that it only gets scheduled once. + */ + if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) { + fprintf( stderr, "%s: " + "\"index\" must occur after \"suffix\".\n", + c->log ); + return 1; + } + ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex ); + mdb->mi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000, + mdb_online_index, c->be, + LDAP_XSTRING(mdb_online_index), c->be->be_suffix[0].bv_val ); + ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex ); + } + } + break; + + case MDB_SSTACK: + if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) { + fprintf( stderr, + "%s: depth %d too small, using %d\n", + c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH ); + c->value_int = MINIMUM_SEARCH_STACK_DEPTH; + } + mdb->mi_search_stack_depth = c->value_int; + break; + + case MDB_MAXREADERS: + mdb->mi_readers = c->value_int; + if ( mdb->mi_flags & MDB_IS_OPEN ) { + mdb->mi_flags |= MDB_RE_OPEN; + c->cleanup = mdb_cf_cleanup; + } + break; + + case MDB_MAXSIZE: + mdb->mi_mapsize = c->value_ulong; + if ( mdb->mi_flags & MDB_IS_OPEN ) { + mdb->mi_flags |= MDB_RE_OPEN; + c->cleanup = mdb_cf_cleanup; + } + break; + + } + return 0; +} + +int mdb_back_init_cf( BackendInfo *bi ) +{ + int rc; + bi->bi_cf_ocs = mdbocs; + + rc = config_register_schema( mdbcfg, mdbocs ); + if ( rc ) return rc; + return 0; +} |