diff options
Diffstat (limited to 'db/btree/bt_page.c')
| -rw-r--r-- | db/btree/bt_page.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/db/btree/bt_page.c b/db/btree/bt_page.c deleted file mode 100644 index ce9cbf15a6..0000000000 --- a/db/btree/bt_page.c +++ /dev/null @@ -1,100 +0,0 @@ -/*- - * Copyright (c) 1990, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * 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. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)bt_page.c 8.3 (Berkeley) 7/14/94"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> - -#include <stdio.h> - -#include <db.h> -#include "btree.h" - -/* - * __bt_free -- - * Put a page on the freelist. - * - * Parameters: - * t: tree - * h: page to free - * - * Returns: - * RET_ERROR, RET_SUCCESS - * - * Side-effect: - * mpool_put's the page. - */ -int -__bt_free(t, h) - BTREE *t; - PAGE *h; -{ - /* Insert the page at the head of the free list. */ - h->prevpg = P_INVALID; - h->nextpg = t->bt_free; - t->bt_free = h->pgno; - F_SET(t, B_METADIRTY); - - /* Make sure the page gets written back. */ - return (mpool_put(t->bt_mp, h, MPOOL_DIRTY)); -} - -/* - * __bt_new -- - * Get a new page, preferably from the freelist. - * - * Parameters: - * t: tree - * npg: storage for page number. - * - * Returns: - * Pointer to a page, NULL on error. - */ -PAGE * -__bt_new(t, npg) - BTREE *t; - pgno_t *npg; -{ - PAGE *h; - - if (t->bt_free != P_INVALID && - (h = mpool_get(t->bt_mp, t->bt_free, 0)) != NULL) { - *npg = t->bt_free; - t->bt_free = h->nextpg; - F_SET(t, B_METADIRTY); - return (h); - } - return (mpool_new(t->bt_mp, npg)); -} |