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-rw-r--r--main/db1-ast/recno/rec_search.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/main/db1-ast/recno/rec_search.c b/main/db1-ast/recno/rec_search.c
deleted file mode 100644
index e70fe4c13..000000000
--- a/main/db1-ast/recno/rec_search.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- * 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[] = "@(#)rec_search.c 8.4 (Berkeley) 7/14/94";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-
-#include <errno.h>
-#include <stdio.h>
-
-#include "../include/db.h"
-#include "recno.h"
-
-/*
- * __REC_SEARCH -- Search a btree for a key.
- *
- * Parameters:
- * t: tree to search
- * recno: key to find
- * op: search operation
- *
- * Returns:
- * EPG for matching record, if any, or the EPG for the location of the
- * key, if it were inserted into the tree.
- *
- * Returns:
- * The EPG for matching record, if any, or the EPG for the location
- * of the key, if it were inserted into the tree, is entered into
- * the bt_cur field of the tree. A pointer to the field is returned.
- */
-EPG *
-__rec_search(t, recno, op)
- BTREE *t;
- recno_t recno;
- enum SRCHOP op;
-{
- register indx_t index;
- register PAGE *h;
- EPGNO *parent;
- RINTERNAL *r;
- pgno_t pg;
- indx_t top;
- recno_t total;
- int sverrno;
-
- BT_CLR(t);
- for (pg = P_ROOT, total = 0;;) {
- if ((h = mpool_get(t->bt_mp, pg, 0)) == NULL)
- goto err;
- if (h->flags & P_RLEAF) {
- t->bt_cur.page = h;
- t->bt_cur.index = recno - total;
- return (&t->bt_cur);
- }
- for (index = 0, top = NEXTINDEX(h);;) {
- r = GETRINTERNAL(h, index);
- if (++index == top || total + r->nrecs > recno)
- break;
- total += r->nrecs;
- }
-
- BT_PUSH(t, pg, index - 1);
-
- pg = r->pgno;
- switch (op) {
- case SDELETE:
- --GETRINTERNAL(h, (index - 1))->nrecs;
- mpool_put(t->bt_mp, h, MPOOL_DIRTY);
- break;
- case SINSERT:
- ++GETRINTERNAL(h, (index - 1))->nrecs;
- mpool_put(t->bt_mp, h, MPOOL_DIRTY);
- break;
- case SEARCH:
- mpool_put(t->bt_mp, h, 0);
- break;
- }
-
- }
- /* Try and recover the tree. */
-err: sverrno = errno;
- if (op != SEARCH)
- while ((parent = BT_POP(t)) != NULL) {
- if ((h = mpool_get(t->bt_mp, parent->pgno, 0)) == NULL)
- break;
- if (op == SINSERT)
- --GETRINTERNAL(h, parent->index)->nrecs;
- else
- ++GETRINTERNAL(h, parent->index)->nrecs;
- mpool_put(t->bt_mp, h, MPOOL_DIRTY);
- }
- errno = sverrno;
- return (NULL);
-}