1 files changed, 0 insertions, 452 deletions

diff --git a/libdb/db/db_meta.c b/libdb/db/db_meta.c
deleted file mode 100644
index 9c895ced9..000000000
--- a/libdb/db/db_meta.c
+++ /dev/null
@@ -1,452 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996-2002
- *	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. 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 "db_config.h"
-
-#ifndef lint
-static const char revid[] = "$Id$";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <string.h>
-#endif
-
-#include "db_int.h"
-#include "dbinc/db_page.h"
-#include "dbinc/db_shash.h"
-#include "dbinc/lock.h"
-#include "dbinc/db_am.h"
-
-static void __db_init_meta __P((void *, u_int32_t, db_pgno_t, u_int32_t));
-
-/*
- * __db_init_meta --
- *	Helper function for __db_new that initializes the important fields in
- * a meta-data page (used instead of P_INIT).  We need to make sure that we
- * retain the page number and LSN of the existing page.
- */
-static void
-__db_init_meta(p, pgsize, pgno, pgtype)
-	void *p;
-	u_int32_t pgsize;
-	db_pgno_t pgno;
-	u_int32_t pgtype;
-{
-	DB_LSN save_lsn;
-	DBMETA *meta;
-
-	meta = (DBMETA *)p;
-	save_lsn = meta->lsn;
-	memset(meta, 0, sizeof(DBMETA));
-	meta->lsn = save_lsn;
-	meta->pagesize = pgsize;
-	meta->pgno = pgno;
-	meta->type = (u_int8_t)pgtype;
-}
-
-/*
- * __db_new --
- *	Get a new page, preferably from the freelist.
- *
- * PUBLIC: int __db_new __P((DBC *, u_int32_t, PAGE **));
- */
-int
-__db_new(dbc, type, pagepp)
-	DBC *dbc;
-	u_int32_t type;
-	PAGE **pagepp;
-{
-	DBMETA *meta;
-	DB *dbp;
-	DB_LOCK metalock;
-	DB_LSN lsn;
-	DB_MPOOLFILE *mpf;
-	PAGE *h;
-	db_pgno_t pgno, newnext;
-	int meta_flags, extend, ret;
-
-	meta = NULL;
-	meta_flags = 0;
-	dbp = dbc->dbp;
-	mpf = dbp->mpf;
-	h = NULL;
-	newnext = PGNO_INVALID;
-
-	pgno = PGNO_BASE_MD;
-	if ((ret = __db_lget(dbc,
-	    LCK_ALWAYS, pgno, DB_LOCK_WRITE, 0, &metalock)) != 0)
-		goto err;
-	if ((ret = mpf->get(mpf, &pgno, 0, (PAGE **)&meta)) != 0)
-		goto err;
-	if (meta->free == PGNO_INVALID) {
-		pgno = meta->last_pgno + 1;
-		ZERO_LSN(lsn);
-		extend = 1;
-	} else {
-		pgno = meta->free;
-		if ((ret = mpf->get(mpf, &pgno, 0, &h)) != 0)
-			goto err;
-
-		/*
-		 * We want to take the first page off the free list and
-		 * then set meta->free to the that page's next_pgno, but
-		 * we need to log the change first.
-		 */
-		newnext = h->next_pgno;
-		lsn = h->lsn;
-		extend = 0;
-	}
-
-	/*
-	 * Log the allocation before fetching the new page.  If we
-	 * don't have room in the log then we don't want to tell
-	 * mpool to extend the file.
-	 */
-	if (DBC_LOGGING(dbc)) {
-		if ((ret = __db_pg_alloc_log(dbp, dbc->txn, &LSN(meta), 0,
-		    &LSN(meta), PGNO_BASE_MD, &lsn, pgno,
-		    (u_int32_t)type, newnext)) != 0)
-			goto err;
-	} else
-		LSN_NOT_LOGGED(LSN(meta));
-
-	meta_flags = DB_MPOOL_DIRTY;
-	meta->free = newnext;
-
-	if (extend == 1) {
-		meta->last_pgno++;
-		if ((ret = mpf->get(mpf, &pgno, DB_MPOOL_NEW, &h)) != 0)
-			goto err;
-		ZERO_LSN(h->lsn);
-		h->pgno = pgno;
-		DB_ASSERT(pgno == meta->last_pgno);
-	}
-	LSN(h) = LSN(meta);
-
-	DB_ASSERT(TYPE(h) == P_INVALID);
-
-	if (TYPE(h) != P_INVALID)
-		return (__db_panic(dbp->dbenv, EINVAL));
-
-	(void)mpf->put(mpf, (PAGE *)meta, DB_MPOOL_DIRTY);
-	(void)__TLPUT(dbc, metalock);
-
-	switch (type) {
-		case P_BTREEMETA:
-		case P_HASHMETA:
-		case P_QAMMETA:
-			__db_init_meta(h, dbp->pgsize, h->pgno, type);
-			break;
-		default:
-			P_INIT(h, dbp->pgsize,
-			    h->pgno, PGNO_INVALID, PGNO_INVALID, 0, type);
-			break;
-	}
-
-	/*
-	 * If dirty reads are enabled and we are in a transaction, we could
-	 * abort this allocation after the page(s) pointing to this
-	 * one have their locks downgraded.  This would permit dirty readers
-	 * to access this page which is ok, but they must be off the
-	 * page when we abort.  This will also prevent updates happening
-	 * to this page until we commit.
-	 */
-	if (F_ISSET(dbc->dbp, DB_AM_DIRTY) && dbc->txn != NULL) {
-		if ((ret = __db_lget(dbc, 0,
-		    h->pgno, DB_LOCK_WWRITE, 0, &metalock)) != 0)
-			goto err;
-	}
-	*pagepp = h;
-	return (0);
-
-err:	if (h != NULL)
-		(void)mpf->put(mpf, h, 0);
-	if (meta != NULL)
-		(void)mpf->put(mpf, meta, meta_flags);
-	(void)__TLPUT(dbc, metalock);
-	return (ret);
-}
-
-/*
- * __db_free --
- *	Add a page to the head of the freelist.
- *
- * PUBLIC: int __db_free __P((DBC *, PAGE *));
- */
-int
-__db_free(dbc, h)
-	DBC *dbc;
-	PAGE *h;
-{
-	DBMETA *meta;
-	DB *dbp;
-	DBT ldbt;
-	DB_LOCK metalock;
-	DB_MPOOLFILE *mpf;
-	db_pgno_t pgno;
-	u_int32_t dirty_flag;
-	int ret, t_ret;
-
-	dbp = dbc->dbp;
-	mpf = dbp->mpf;
-
-	/*
-	 * Retrieve the metadata page and insert the page at the head of
-	 * the free list.  If either the lock get or page get routines
-	 * fail, then we need to put the page with which we were called
-	 * back because our caller assumes we take care of it.
-	 */
-	dirty_flag = 0;
-	pgno = PGNO_BASE_MD;
-	if ((ret = __db_lget(dbc,
-	    LCK_ALWAYS, pgno, DB_LOCK_WRITE, 0, &metalock)) != 0)
-		goto err;
-	if ((ret = mpf->get(mpf, &pgno, 0, (PAGE **)&meta)) != 0) {
-		(void)__TLPUT(dbc, metalock);
-		goto err;
-	}
-
-	DB_ASSERT(h->pgno != meta->free);
-	/* Log the change. */
-	if (DBC_LOGGING(dbc)) {
-		memset(&ldbt, 0, sizeof(ldbt));
-		ldbt.data = h;
-		ldbt.size = P_OVERHEAD(dbp);
-		if ((ret = __db_pg_free_log(dbp,
-		    dbc->txn, &LSN(meta), 0, h->pgno,
-		    &LSN(meta), PGNO_BASE_MD, &ldbt, meta->free)) != 0) {
-			(void)mpf->put(mpf, (PAGE *)meta, 0);
-			(void)__TLPUT(dbc, metalock);
-			goto err;
-		}
-	} else
-		LSN_NOT_LOGGED(LSN(meta));
-	LSN(h) = LSN(meta);
-
-	P_INIT(h, dbp->pgsize, h->pgno, PGNO_INVALID, meta->free, 0, P_INVALID);
-
-	meta->free = h->pgno;
-
-	/* Discard the metadata page. */
-	if ((t_ret =
-	    mpf->put(mpf, (PAGE *)meta, DB_MPOOL_DIRTY)) != 0 && ret == 0)
-		ret = t_ret;
-	if ((t_ret = __TLPUT(dbc, metalock)) != 0 && ret == 0)
-		ret = t_ret;
-
-	/* Discard the caller's page reference. */
-	dirty_flag = DB_MPOOL_DIRTY;
-err:	if ((t_ret = mpf->put(mpf, h, dirty_flag)) != 0 && ret == 0)
-		ret = t_ret;
-
-	/*
-	 * XXX
-	 * We have to unlock the caller's page in the caller!
-	 */
-	return (ret);
-}
-
-#ifdef DEBUG
-/*
- * __db_lprint --
- *	Print out the list of locks currently held by a cursor.
- *
- * PUBLIC: int __db_lprint __P((DBC *));
- */
-int
-__db_lprint(dbc)
-	DBC *dbc;
-{
-	DB *dbp;
-	DB_LOCKREQ req;
-
-	dbp = dbc->dbp;
-
-	if (LOCKING_ON(dbp->dbenv)) {
-		req.op = DB_LOCK_DUMP;
-		dbp->dbenv->lock_vec(dbp->dbenv, dbc->locker, 0, &req, 1, NULL);
-	}
-	return (0);
-}
-#endif
-
-/*
- * Implement the rules for transactional locking.  We can release the previous
- * lock if we are not in a transaction or COUPLE_ALWAYS is specifed (used in
- * record locking).  If we are doing dirty reads then we can release read locks
- * and down grade write locks.
- */
-#define	DB_PUT_ACTION(dbc, action, lockp)				\
-	    (((action == LCK_COUPLE || action == LCK_COUPLE_ALWAYS) &&	\
-	    LOCK_ISSET(*lockp)) ?					\
-	    (dbc->txn == NULL || action == LCK_COUPLE_ALWAYS ||		\
-	    (F_ISSET(dbc, DBC_DIRTY_READ) &&				\
-	    (lockp)->mode == DB_LOCK_DIRTY)) ? LCK_COUPLE :		\
-	    (F_ISSET((dbc)->dbp, DB_AM_DIRTY) &&			\
-	    (lockp)->mode == DB_LOCK_WRITE) ? LCK_DOWNGRADE : 0 : 0)
-
-/*
- * __db_lget --
- *	The standard lock get call.
- *
- * PUBLIC: int __db_lget __P((DBC *,
- * PUBLIC:     int, db_pgno_t, db_lockmode_t, u_int32_t, DB_LOCK *));
- */
-int
-__db_lget(dbc, action, pgno, mode, lkflags, lockp)
-	DBC *dbc;
-	int action;
-	db_pgno_t pgno;
-	db_lockmode_t mode;
-	u_int32_t lkflags;
-	DB_LOCK *lockp;
-{
-	DB *dbp;
-	DB_ENV *dbenv;
-	DB_LOCKREQ couple[2], *reqp;
-	DB_TXN *txn;
-	int has_timeout, ret;
-
-	dbp = dbc->dbp;
-	dbenv = dbp->dbenv;
-	txn = dbc->txn;
-
-	/*
-	 * We do not always check if we're configured for locking before
-	 * calling __db_lget to acquire the lock.
-	 */
-	if (CDB_LOCKING(dbenv) ||
-	    !LOCKING_ON(dbenv) || F_ISSET(dbc, DBC_COMPENSATE) ||
-	    (F_ISSET(dbc, DBC_RECOVER) &&
-	    (action != LCK_ROLLBACK || F_ISSET(dbenv, DB_ENV_REP_CLIENT))) ||
-	    (action != LCK_ALWAYS && F_ISSET(dbc, DBC_OPD))) {
-		LOCK_INIT(*lockp);
-		return (0);
-	}
-
-	dbc->lock.pgno = pgno;
-	if (lkflags & DB_LOCK_RECORD)
-		dbc->lock.type = DB_RECORD_LOCK;
-	else
-		dbc->lock.type = DB_PAGE_LOCK;
-	lkflags &= ~DB_LOCK_RECORD;
-
-	/*
-	 * If the transaction enclosing this cursor has DB_LOCK_NOWAIT set,
-	 * pass that along to the lock call.
-	 */
-	if (DB_NONBLOCK(dbc))
-		lkflags |= DB_LOCK_NOWAIT;
-
-	if (F_ISSET(dbc, DBC_DIRTY_READ) && mode == DB_LOCK_READ)
-		mode = DB_LOCK_DIRTY;
-
-	has_timeout = txn != NULL && F_ISSET(txn, TXN_LOCKTIMEOUT);
-
-	switch (DB_PUT_ACTION(dbc, action, lockp)) {
-	case LCK_COUPLE:
-lck_couple:	couple[0].op = has_timeout? DB_LOCK_GET_TIMEOUT : DB_LOCK_GET;
-		couple[0].obj = &dbc->lock_dbt;
-		couple[0].mode = mode;
-		if (action == LCK_COUPLE_ALWAYS)
-			action = LCK_COUPLE;
-		UMRW_SET(couple[0].timeout);
-		if (has_timeout)
-			couple[0].timeout = txn->lock_timeout;
-		if (action == LCK_COUPLE) {
-			couple[1].op = DB_LOCK_PUT;
-			couple[1].lock = *lockp;
-		}
-
-		ret = dbenv->lock_vec(dbenv, dbc->locker,
-		    lkflags, couple, action == LCK_COUPLE ? 2 : 1, &reqp);
-		if (ret == 0 || reqp == &couple[1])
-			*lockp = couple[0].lock;
-		break;
-	case LCK_DOWNGRADE:
-		if ((ret = dbenv->lock_downgrade(
-		    dbenv, lockp, DB_LOCK_WWRITE, 0)) != 0)
-			return (ret);
-		/* FALL THROUGH */
-	default:
-		if (has_timeout)
-			goto lck_couple;
-		ret = dbenv->lock_get(dbenv,
-		    dbc->locker, lkflags, &dbc->lock_dbt, mode, lockp);
-		break;
-	}
-
-	return (ret);
-}
-
-/*
- * __db_lput --
- *	The standard lock put call.
- *
- * PUBLIC: int __db_lput __P((DBC *, DB_LOCK *));
- */
-int
-__db_lput(dbc, lockp)
-	DBC *dbc;
-	DB_LOCK *lockp;
-{
-	DB_ENV *dbenv;
-	int ret;
-
-	dbenv = dbc->dbp->dbenv;
-
-	switch (DB_PUT_ACTION(dbc, LCK_COUPLE, lockp)) {
-	case LCK_COUPLE:
-		ret = dbenv->lock_put(dbenv, lockp);
-		break;
-	case LCK_DOWNGRADE:
-		ret = __lock_downgrade(dbenv, lockp, DB_LOCK_WWRITE, 0);
-		break;
-	default:
-		ret = 0;
-		break;
-	}
-
-	return (ret);
-}