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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)btree.src 10.3 (Sleepycat) 8/17/97";
#endif /* not lint */
PREFIX bam
/*
* BTREE-pg_alloc: used to record allocating a new page.
*
* meta_lsn: the meta-data page's original lsn.
* page_lsn: the allocated page's original lsn.
* pgno: the page allocated.
* next: the next page on the free list.
*/
BEGIN pg_alloc
ARG fileid u_int32_t lu
POINTER meta_lsn DB_LSN * lu
POINTER page_lsn DB_LSN * lu
ARG pgno db_pgno_t lu
ARG ptype u_int32_t lu
ARG next db_pgno_t lu
END
/*
* BTREE-pg_free: used to record freeing a page.
*
* pgno: the page being freed.
* meta_lsn: the meta-data page's original lsn.
* header: the header from the free'd page.
* next: the previous next pointer on the metadata page.
*/
BEGIN pg_free
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER meta_lsn DB_LSN * lu
DBT header DBT s
ARG next db_pgno_t lu
END
/*
* 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).
* pg: the split page's contents before the split.
*/
BEGIN split
ARG fileid u_int32_t lu
ARG left db_pgno_t lu
POINTER llsn DB_LSN * lu
ARG 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
DBT pg DBT s
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.
* rootent: last entry on the root page.
* rootlsn: the root page's original lsn.
*/
BEGIN rsplit
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
DBT pgdbt DBT s
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
ARG fileid u_int32_t lu
ARG 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.
* total: if the total tree entries count should be adjusted
*/
BEGIN cadjust
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
ARG adjust int32_t ld
ARG total int32_t ld
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
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG indx u_int32_t lu
END
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