diff options
Diffstat (limited to 'db2/btree/bt_close.c')
| -rw-r--r-- | db2/btree/bt_close.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/db2/btree/bt_close.c b/db2/btree/bt_close.c deleted file mode 100644 index 9df5c717e6..0000000000 --- a/db2/btree/bt_close.c +++ /dev/null @@ -1,177 +0,0 @@ -/*- - * See the file LICENSE for redistribution information. - * - * Copyright (c) 1996, 1997, 1998 - * Sleepycat Software. All rights reserved. - */ -/* - * Copyright (c) 1990, 1993, 1994, 1995, 1996 - * Keith Bostic. All rights reserved. - */ -/* - * Copyright (c) 1990, 1993, 1994, 1995 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Mike Olson. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "config.h" - -#ifndef lint -static const char sccsid[] = "@(#)bt_close.c 10.32 (Sleepycat) 5/6/98"; -#endif /* not lint */ - -#ifndef NO_SYSTEM_INCLUDES -#include <sys/types.h> - -#include <string.h> -#endif - -#include "db_int.h" -#include "db_page.h" -#include "btree.h" - -static void __bam_upstat __P((DB *dbp)); - -/* - * __bam_close -- - * Close a btree. - * - * PUBLIC: int __bam_close __P((DB *)); - */ -int -__bam_close(dbp) - DB *dbp; -{ - BTREE *t; - - DEBUG_LWRITE(dbp, NULL, "bam_close", NULL, NULL, 0); - - t = dbp->internal; - - /* Update tree statistics. */ - __bam_upstat(dbp); - - /* Free any allocated memory. */ - if (t->bt_rkey.data) - FREE(t->bt_rkey.data, t->bt_rkey.size); - if (t->bt_rdata.data) - FREE(t->bt_rdata.data, t->bt_rdata.ulen); - if (t->bt_sp != t->bt_stack) - FREE(t->bt_sp, (t->bt_esp - t->bt_sp) * sizeof(EPG)); - - FREE(t, sizeof(BTREE)); - dbp->internal = NULL; - - return (0); -} - -/* - * __bam_sync -- - * Sync the btree to disk. - * - * PUBLIC: int __bam_sync __P((DB *, u_int32_t)); - */ -int -__bam_sync(argdbp, flags) - DB *argdbp; - u_int32_t flags; -{ - DB *dbp; - int ret; - - DEBUG_LWRITE(argdbp, NULL, "bam_sync", NULL, NULL, flags); - - /* Check for invalid flags. */ - if ((ret = __db_syncchk(argdbp, flags)) != 0) - return (ret); - - /* If it wasn't possible to modify the file, we're done. */ - if (F_ISSET(argdbp, DB_AM_INMEM | DB_AM_RDONLY)) - return (0); - - GETHANDLE(argdbp, NULL, &dbp, ret); - - /* Flush any dirty pages from the cache to the backing file. */ - if ((ret = memp_fsync(dbp->mpf)) == DB_INCOMPLETE) - ret = 0; - - PUTHANDLE(dbp); - return (ret); -} - -/* - * __bam_upstat -- - * Update tree statistics. - */ -static void -__bam_upstat(dbp) - DB *dbp; -{ - BTREE *t; - BTMETA *meta; - DB_LOCK metalock; - db_pgno_t pgno; - u_int32_t flags; - - /* - * We use a no-op log call to log the update of the statistics onto the - * metadata page. The Db->close call isn't transaction protected to - * start with, and I'm not sure what undoing a statistics update means, - * anyway. - */ - if (F_ISSET(dbp, DB_AM_INMEM | DB_AM_RDONLY)) - return; - - flags = 0; - pgno = PGNO_METADATA; - - /* Lock and retrieve the page. */ - if (__bam_lget(dbp, 0, pgno, DB_LOCK_WRITE, &metalock) != 0) - return; - if (__bam_pget(dbp, (PAGE **)&meta, &pgno, 0) == 0) { - /* Log the change. */ - if (DB_LOGGING(dbp) && - __db_noop_log(dbp->dbenv->lg_info, dbp->txn, &LSN(meta), 0, - dbp->log_fileid, PGNO_METADATA, &LSN(meta)) != 0) - goto err; - - /* Update the statistics. */ - t = dbp->internal; - __bam_add_mstat(&t->lstat, &meta->stat); - - flags = DB_MPOOL_DIRTY; - } - -err: (void)memp_fput(dbp->mpf, (PAGE *)meta, flags); - (void)__BT_LPUT(dbp, metalock); -} |