153 lines
3.9 KiB
Plaintext
153 lines
3.9 KiB
Plaintext
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996, 1997, 1998
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* Sleepycat Software. All rights reserved.
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*
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* @(#)db.src 10.8 (Sleepycat) 9/20/98
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*/
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PREFIX db
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/*
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* addrem -- Add or remove an entry from a duplicate page.
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*
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* opcode: identifies if this is an add or delete.
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* fileid: file identifier of the file being modified.
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* pgno: duplicate page number.
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* indx: location at which to insert or delete.
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* nbytes: number of bytes added/removed to/from the page.
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* hdr: header for the data item.
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* dbt: data that is deleted or is to be added.
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* pagelsn: former lsn of the page.
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*
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* If the hdr was NULL then, the dbt is a regular B_KEYDATA.
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* If the dbt was NULL then the hdr is a complete item to be
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* pasted on the page.
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*/
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BEGIN addrem
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ARG opcode u_int32_t lu
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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ARG indx u_int32_t lu
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ARG nbytes size_t lu
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DBT hdr DBT s
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DBT dbt DBT s
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POINTER pagelsn DB_LSN * lu
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END
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/*
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* split -- Handles the split of a duplicate page.
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*
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* opcode: defines whether we are splitting from or splitting onto
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* fileid: file identifier of the file being modified.
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* pgno: page number being split.
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* pageimage: entire page contents.
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* pagelsn: former lsn of the page.
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*/
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BEGIN split
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ARG opcode u_int32_t lu
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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DBT pageimage DBT s
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POINTER pagelsn DB_LSN * lu
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END
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/*
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* big -- Handles addition and deletion of big key/data items.
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*
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* opcode: identifies get/put.
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* fileid: file identifier of the file being modified.
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* pgno: page onto which data is being added/removed.
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* prev_pgno: the page before the one we are logging.
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* next_pgno: the page after the one we are logging.
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* dbt: data being written onto the page.
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* pagelsn: former lsn of the orig_page.
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* prevlsn: former lsn of the prev_pgno.
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* nextlsn: former lsn of the next_pgno. This is not currently used, but
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* may be used later if we actually do overwrites of big key/
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* data items in place.
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*/
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BEGIN big
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ARG opcode u_int32_t lu
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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ARG prev_pgno db_pgno_t lu
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ARG next_pgno db_pgno_t lu
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DBT dbt DBT s
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POINTER pagelsn DB_LSN * lu
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POINTER prevlsn DB_LSN * lu
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POINTER nextlsn DB_LSN * lu
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END
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/*
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* ovref -- Handles increment/decrement of overflow page reference count.
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*
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* fileid: identifies the file being modified.
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* pgno: page number whose ref count is being incremented/decremented.
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* adjust: the adjustment being made.
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* lsn: the page's original lsn.
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*/
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BEGIN ovref
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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ARG adjust int32_t ld
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POINTER lsn DB_LSN * lu
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END
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/*
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* relink -- Handles relinking around a page.
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*
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* opcode: indicates if this is an addpage or delete page
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* pgno: the page being changed.
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* lsn the page's original lsn.
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* prev: the previous page.
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* lsn_prev: the previous page's original lsn.
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* next: the next page.
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* lsn_next: the previous page's original lsn.
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*/
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BEGIN relink
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ARG opcode u_int32_t lu
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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POINTER lsn DB_LSN * lu
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ARG prev db_pgno_t lu
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POINTER lsn_prev DB_LSN * lu
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ARG next db_pgno_t lu
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POINTER lsn_next DB_LSN * lu
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END
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/*
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* Addpage -- Handles adding a new duplicate page onto the end of
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* an existing duplicate page.
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* fileid: identifies the file being changed.
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* pgno: page number to which a new page is being added.
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* lsn: lsn of pgno
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* nextpgno: new page number being added.
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* nextlsn: lsn of nextpgno;
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*/
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BEGIN addpage
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ARG fileid u_int32_t lu
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ARG pgno db_pgno_t lu
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POINTER lsn DB_LSN * lu
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ARG nextpgno db_pgno_t lu
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POINTER nextlsn DB_LSN * lu
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END
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/*
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* Debug -- log an operation upon entering an access method.
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* op: Operation (cursor, c_close, c_get, c_put, c_del,
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* get, put, delete).
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* fileid: identifies the file being acted upon.
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* key: key paramater
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* data: data parameter
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* flags: flags parameter
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*/
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BEGIN debug
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DBT op DBT s
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ARG fileid u_int32_t lu
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DBT key DBT s
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DBT data DBT s
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ARG arg_flags u_int32_t lu
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END
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