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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996-2002
* Sleepycat Software. All rights reserved.
*
* $Id: db.src,v 11.18 2002/04/17 19:02:58 krinsky Exp $
*/
PREFIX __db
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/log.h"
INCLUDE #include "dbinc/rep.h"
INCLUDE #include "dbinc/txn.h"
INCLUDE
/*
* addrem -- Add or remove an entry from a duplicate page.
*
* opcode: identifies if this is an add or delete.
* fileid: file identifier of the file being modified.
* pgno: duplicate page number.
* indx: location at which to insert or delete.
* nbytes: number of bytes added/removed to/from the page.
* hdr: header for the data item.
* dbt: data that is deleted or is to be added.
* pagelsn: former lsn of the page.
*
* If the hdr was NULL then, the dbt is a regular B_KEYDATA.
* If the dbt was NULL then the hdr is a complete item to be
* pasted on the page.
*/
BEGIN addrem 41
ARG opcode u_int32_t lu
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
ARG indx u_int32_t lu
ARG nbytes u_int32_t lu
PGDBT hdr DBT s
DBT dbt DBT s
POINTER pagelsn DB_LSN * lu
END
/*
* big -- Handles addition and deletion of big key/data items.
*
* opcode: identifies get/put.
* fileid: file identifier of the file being modified.
* pgno: page onto which data is being added/removed.
* prev_pgno: the page before the one we are logging.
* next_pgno: the page after the one we are logging.
* dbt: data being written onto the page.
* pagelsn: former lsn of the orig_page.
* prevlsn: former lsn of the prev_pgno.
* nextlsn: former lsn of the next_pgno. This is not currently used, but
* may be used later if we actually do overwrites of big key/
* data items in place.
*/
BEGIN big 43
ARG opcode u_int32_t lu
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
WRLOCKNZ prev_pgno db_pgno_t lu
WRLOCKNZ next_pgno db_pgno_t lu
DBT dbt DBT s
POINTER pagelsn DB_LSN * lu
POINTER prevlsn DB_LSN * lu
POINTER nextlsn DB_LSN * lu
END
/*
* ovref -- Handles increment/decrement of overflow page reference count.
*
* fileid: identifies the file being modified.
* pgno: page number whose ref count is being incremented/decremented.
* adjust: the adjustment being made.
* lsn: the page's original lsn.
*/
BEGIN ovref 44
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
ARG adjust int32_t ld
POINTER lsn DB_LSN * lu
END
/*
* relink -- Handles relinking around a page.
*
* opcode: indicates if this is an addpage or delete page
* pgno: the page being changed.
* lsn the page's original lsn.
* prev: the previous page.
* lsn_prev: the previous page's original lsn.
* next: the next page.
* lsn_next: the previous page's original lsn.
*/
BEGIN relink 45
ARG opcode u_int32_t lu
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
WRLOCKNZ prev db_pgno_t lu
POINTER lsn_prev DB_LSN * lu
WRLOCKNZ next db_pgno_t lu
POINTER lsn_next DB_LSN * lu
END
/*
* Debug -- log an operation upon entering an access method.
* op: Operation (cursor, c_close, c_get, c_put, c_del,
* get, put, delete).
* fileid: identifies the file being acted upon.
* key: key paramater
* data: data parameter
* flags: flags parameter
*/
BEGIN debug 47
DBT op DBT s
ARG fileid int32_t ld
DBT key DBT s
DBT data DBT s
ARG arg_flags u_int32_t lu
END
/*
* noop -- do nothing, but get an LSN.
*/
BEGIN noop 48
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER prevlsn DB_LSN * lu
END
/*
* pg_alloc: used to record allocating a new page.
*
* meta_lsn: the meta-data page's original lsn.
* meta_pgno the meta-data page number.
* page_lsn: the allocated page's original lsn.
* pgno: the page allocated.
* ptype: the type of the page allocated.
* next: the next page on the free list.
*/
BEGIN pg_alloc 49
DB fileid int32_t ld
POINTER meta_lsn DB_LSN * lu
WRLOCK meta_pgno db_pgno_t lu
POINTER page_lsn DB_LSN * lu
WRLOCK pgno db_pgno_t lu
ARG ptype u_int32_t lu
ARG next db_pgno_t lu
END
/*
* pg_free: used to record freeing a page.
*
* pgno: the page being freed.
* meta_lsn: the meta-data page's original lsn.
* meta_pgno: the meta-data page number.
* header: the header from the free'd page.
* next: the previous next pointer on the metadata page.
*/
BEGIN pg_free 50
DB fileid int32_t ld
WRLOCK pgno db_pgno_t lu
POINTER meta_lsn DB_LSN * lu
WRLOCK meta_pgno db_pgno_t lu
PGDBT header DBT s
ARG next db_pgno_t lu
END
/*
* cksum --
* This log record is written when we're unable to checksum a page,
* before returning DB_RUNRECOVERY. This log record causes normal
* recovery to itself return DB_RUNRECOVERY, as only catastrophic
* recovery can fix things.
*/
BEGIN cksum 51
END
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