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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997
* Sleepycat Software. All rights reserved.
* @(#)db.src 10.4 (Sleepycat) 11/2/97
*/
#include "config.h"
PREFIX db
/*
* 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
ARG opcode u_int32_t lu
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
ARG indx u_int32_t lu
ARG nbytes size_t lu
DBT hdr DBT s
DBT dbt DBT s
POINTER pagelsn DB_LSN * lu
END
/*
* split -- Handles the split of a duplicate page.
*
* opcode: defines whether we are splitting from or splitting onto
* fileid: file identifier of the file being modified.
* pgno: page number being split.
* pageimage: entire page contents.
* pagelsn: former lsn of the page.
*/
BEGIN split
ARG opcode u_int32_t lu
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
DBT pageimage 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
ARG opcode u_int32_t lu
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
ARG prev_pgno db_pgno_t lu
ARG 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
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
ARG adjust int32_t ld
POINTER lsn DB_LSN * lu
END
/*
* relink -- Handles relinking around a 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
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG prev db_pgno_t lu
POINTER lsn_prev DB_LSN * lu
ARG next db_pgno_t lu
POINTER lsn_next DB_LSN * lu
END
/*
* Addpage -- Handles adding a new duplicate page onto the end of
* an existing duplicate page.
* fileid: identifies the file being changed.
* pgno: page number to which a new page is being added.
* lsn: lsn of pgno
* nextpgno: new page number being added.
* nextlsn: lsn of nextpgno;
*/
BEGIN addpage
ARG fileid u_int32_t lu
ARG pgno db_pgno_t lu
POINTER lsn DB_LSN * lu
ARG nextpgno db_pgno_t lu
POINTER nextlsn 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
DBT op DBT s
ARG fileid u_int32_t lu
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
END
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