mariadb/storage/bdb/btree/bt_reclaim.c
2005-12-05 10:27:46 -08:00

76 lines
1.3 KiB
C

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1998-2005
* Sleepycat Software. All rights reserved.
*
* $Id: bt_reclaim.c,v 12.2 2005/06/16 20:20:19 bostic Exp $
*/
#include "db_config.h"
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <string.h>
#endif
#include "db_int.h"
#include "dbinc/db_page.h"
#include "dbinc/btree.h"
/*
* __bam_reclaim --
* Free a database.
*
* PUBLIC: int __bam_reclaim __P((DB *, DB_TXN *));
*/
int
__bam_reclaim(dbp, txn)
DB *dbp;
DB_TXN *txn;
{
DBC *dbc;
int ret, t_ret;
/* Acquire a cursor. */
if ((ret = __db_cursor(dbp, txn, &dbc, 0)) != 0)
return (ret);
/* Walk the tree, freeing pages. */
ret = __bam_traverse(dbc,
DB_LOCK_WRITE, dbc->internal->root, __db_reclaim_callback, dbc);
/* Discard the cursor. */
if ((t_ret = __db_c_close(dbc)) != 0 && ret == 0)
ret = t_ret;
return (ret);
}
/*
* __bam_truncate --
* Truncate a database.
*
* PUBLIC: int __bam_truncate __P((DBC *, u_int32_t *));
*/
int
__bam_truncate(dbc, countp)
DBC *dbc;
u_int32_t *countp;
{
db_trunc_param trunc;
int ret;
trunc.count = 0;
trunc.dbc = dbc;
/* Walk the tree, freeing pages. */
ret = __bam_traverse(dbc,
DB_LOCK_WRITE, dbc->internal->root, __db_truncate_callback, &trunc);
if (countp != NULL)
*countp = trunc.count;
return (ret);
}