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59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
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/* init.c - initialize bdb backend */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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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 "back-bdb.h"
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int bdb_next_id( BackendDB *be, DB_TXN *tid, ID *out )
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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int rc;
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ID kid = NOID;
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ID id;
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DBT key, data;
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DBTzero( &key );
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key.data = (char *) &kid;
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key.size = sizeof( kid );
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DBTzero( &data );
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data.data = (char *) &id;
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data.ulen = sizeof( id );
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data.flags = DB_DBT_USERMEM;
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/* get exiting value (with write lock) */
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rc = bdb->bi_entries->bdi_db->get( bdb->bi_nextid->bdi_db,
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tid, &key, &data, DB_RMW );
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if( rc == DB_NOTFOUND ) {
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/* must be first add */
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id = NOID;
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} else if( rc != 0 ) {
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return rc;
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} else if ( data.size != sizeof(ID) ) {
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/* size mismatch! */
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return -1;
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}
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id++;
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/* store new value */
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rc = bdb->bi_entries->bdi_db->put( bdb->bi_nextid->bdi_db,
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tid, &key, &data, 0 );
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*out = id;
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return rc;
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}
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