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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996-2002
* Sleepycat Software. All rights reserved.
*
* $Id: btree.src,v 10.35 2002/04/17 19:02:56 krinsky Exp $
*/
PREFIX __bam
DBPRIVATE
INCLUDE #include "db_config.h"
INCLUDE
INCLUDE #ifndef NO_SYSTEM_INCLUDES
INCLUDE #include <sys/types.h>
INCLUDE
INCLUDE #include <ctype.h>
INCLUDE #include <string.h>
INCLUDE #endif
INCLUDE
INCLUDE #include "db_int.h"
INCLUDE #include "dbinc/crypto.h"
INCLUDE #include "dbinc/db_page.h"
INCLUDE #include "dbinc/db_dispatch.h"
INCLUDE #include "dbinc/db_am.h"
INCLUDE #include "dbinc/btree.h"
INCLUDE #include "dbinc/log.h"
INCLUDE #include "dbinc/rep.h"
INCLUDE #include "dbinc/txn.h"
INCLUDE
/*
* NOTE: pg_alloc and pg_free have been moved to db.src, where they belong.
*/
/*
* BTREE-split: used to log a page split.
*
* left: the page number for the low-order contents.
* llsn: the left page's original LSN.
* right: the page number for the high-order contents.
* rlsn: the right page's original LSN.
* indx: the number of entries that went to the left page.
* npgno: the next page number
* nlsn: the next page's original LSN (or 0 if no next page).
* root_pgno: the root page number
* pg: the split page's contents before the split.
* opflags: SPL_NRECS: if splitting a tree that maintains a record count.
*/
BEGIN split 62
DB fileid int32_t ld
WRLOCK left db_pgno_t lu
POINTER llsn DB_LSN * lu
WRLOCK right db_pgno_t lu
POINTER rlsn DB_LSN * lu
ARG indx u_int32_t lu
ARG npgno db_pgno_t lu
POINTER nlsn DB_LSN * lu
WRLOCKNZ root_pgno db_pgno_t lu
PGDBT pg DBT s
ARG opflags u_int32_t lu
END
/*
* BTREE-rsplit: used to log a reverse-split
*
* pgno: the page number of the page copied over the root.
* pgdbt: the page being copied on the root page.
* root_pgno: the root page number.
* nrec: the tree's record count.
* rootent: last entry on the root page.
* rootlsn: the root page's original lsn.
*/
BEGIN rsplit 63
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
PGDBT pgdbt DBT s
WRLOCK root_pgno db_pgno_t lu
ARG nrec db_pgno_t lu
DBT rootent DBT s
POINTER rootlsn DB_LSN * lu
END
/*
* BTREE-adj: used to log the adjustment of an index.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index adjusted.
* indx_copy: the index to copy if inserting.
* is_insert: 0 if a delete, 1 if an insert.
*/
BEGIN adj 55
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG indx_copy u_int32_t lu
ARG is_insert u_int32_t lu
END
/*
* BTREE-cadjust: used to adjust the count change in an internal page.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index to be adjusted.
* adjust: the signed adjustment.
* opflags: CAD_UPDATEROOT: if root page count was adjusted.
*/
BEGIN cadjust 56
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG adjust int32_t ld
ARG opflags u_int32_t lu
END
/*
* BTREE-cdel: used to log the intent-to-delete of a cursor record.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* indx: the index to be deleted.
*/
BEGIN cdel 57
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
END
/*
* BTREE-repl: used to log the replacement of an item.
*
* pgno: the page modified.
* lsn: the page's original lsn.
* orig: the original data.
* new: the replacement data.
* duplicate: the prefix of the replacement that matches the original.
*/
BEGIN repl 58
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG isdeleted u_int32_t lu
DBT orig DBT s
DBT repl DBT s
ARG prefix u_int32_t lu
ARG suffix u_int32_t lu
END
/*
* BTREE-root: log the assignment of a root btree page.
*/
BEGIN root 59
DB fileid int32_t ld
WRLOCK meta_pgno db_pgno_t lu
WRLOCK root_pgno db_pgno_t lu
POINTER meta_lsn DB_LSN * lu
END
/*
* BTREE-curadj: undo cursor adjustments on txn abort.
* Should only be processed during DB_TXN_ABORT.
* NOTE: the first_indx field gets used to hold
* signed index adjustment in one case.
* care should be taken if its size is changed.
*/
BEGIN curadj 64
/* Fileid of db affected. */
DB fileid int32_t ld
/* Which adjustment. */
ARG mode db_ca_mode ld
/* Page entry is from. */
ARG from_pgno db_pgno_t lu
/* Page entry went to. */
ARG to_pgno db_pgno_t lu
/* Left page of root split. */
ARG left_pgno db_pgno_t lu
/* First index of dup set. Also used as adjustment. */
ARG first_indx u_int32_t lu
/* Index entry is from. */
ARG from_indx u_int32_t lu
/* Index where entry went. */
ARG to_indx u_int32_t lu
END
/*
* BTREE-rcuradj: undo cursor adjustments on txn abort in
* renumbering recno trees.
* Should only be processed during DB_TXN_ABORT.
*/
BEGIN rcuradj 65
/* Fileid of db affected. */
DB fileid int32_t ld
/* Which adjustment. */
ARG mode ca_recno_arg ld
/* Root page number. */
ARG root db_pgno_t ld
/* Recno of the adjustment. */
ARG recno db_recno_t ld
/* Order number of the adjustment. */
ARG order u_int32_t ld
END
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