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116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 2000-2005
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* Sleepycat Software. All rights reserved.
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*
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* $Id: db_setlsn.c,v 12.8 2005/10/21 19:17:40 bostic Exp $
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*/
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#include "db_config.h"
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#endif
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#include "db_int.h"
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#include "dbinc/db_page.h"
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#include "dbinc/db_shash.h"
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#include "dbinc/db_am.h"
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#include "dbinc/mp.h"
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static int __env_lsn_reset __P((DB_ENV *, const char *, int));
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/*
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* __env_lsn_reset_pp --
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* DB_ENV->lsn_reset pre/post processing.
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*
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* PUBLIC: int __env_lsn_reset_pp __P((DB_ENV *, const char *, u_int32_t));
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*/
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int
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__env_lsn_reset_pp(dbenv, name, flags)
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DB_ENV *dbenv;
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const char *name;
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u_int32_t flags;
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{
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DB_THREAD_INFO *ip;
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int handle_check, ret, t_ret;
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PANIC_CHECK(dbenv);
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ENV_ILLEGAL_BEFORE_OPEN(dbenv, "DB_ENV->lsn_reset");
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/*
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* !!!
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* The actual argument checking is simple, do it inline, outside of
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* the replication block.
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*/
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if (flags != 0 && flags != DB_ENCRYPT)
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return (__db_ferr(dbenv, "DB_ENV->lsn_reset", 0));
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ENV_ENTER(dbenv, ip);
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/* Check for replication block. */
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handle_check = IS_ENV_REPLICATED(dbenv);
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if (handle_check && (ret = __env_rep_enter(dbenv, 1)) != 0)
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goto err;
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ret = __env_lsn_reset(dbenv, name, LF_ISSET(DB_ENCRYPT) ? 1 : 0);
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if (handle_check && (t_ret = __env_db_rep_exit(dbenv)) != 0 && ret == 0)
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ret = t_ret;
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err: ENV_LEAVE(dbenv, ip);
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return (ret);
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}
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/*
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* __env_lsn_reset --
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* Reset the LSNs for every page in the file.
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*/
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static int
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__env_lsn_reset(dbenv, name, encrypted)
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DB_ENV *dbenv;
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const char *name;
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int encrypted;
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{
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DB *dbp;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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db_pgno_t pgno;
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int t_ret, ret;
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/* Create the DB object. */
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if ((ret = db_create(&dbp, dbenv, 0)) != 0)
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return (ret);
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/* If configured with a password, the databases are encrypted. */
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if (encrypted && (ret = __db_set_flags(dbp, DB_ENCRYPT)) != 0)
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goto err;
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/*
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* Open the DB file.
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*
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* !!!
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* Note DB_RDWRMASTER flag, we need to open the master database file
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* for writing in this case.
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*/
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if ((ret = __db_open(dbp, NULL,
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name, NULL, DB_UNKNOWN, DB_RDWRMASTER, 0, PGNO_BASE_MD)) != 0)
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goto err;
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/* Reset the LSN on every page of the database file. */
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mpf = dbp->mpf;
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for (pgno = 0;
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(ret = __memp_fget(mpf, &pgno, 0, &pagep)) == 0; ++pgno) {
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LSN_NOT_LOGGED(pagep->lsn);
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if ((ret = __memp_fput(mpf, pagep, DB_MPOOL_DIRTY)) != 0)
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goto err;
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}
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if (ret == DB_PAGE_NOTFOUND)
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ret = 0;
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err: if ((t_ret = __db_close(dbp, NULL, 0)) != 0 && ret == 0)
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ret = t_ret;
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return (ret);
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}
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