bdb-fork-grimen

/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1996, 2010 Oracle and/or its affiliates. All rights reserved. * * $Id$ */ DBPRIVATE PREFIX __db 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/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 50 41 OP opcode u_int32_t lu DB fileid int32_t ld ARG pgno db_pgno_t lu ARG indx u_int32_t lu ARG nbytes u_int32_t lu HDR hdr DBT s DBT dbt DBT s POINTER pagelsn DB_LSN * lu END BEGIN_COMPAT addrem 42 41 ARG opcode u_int32_t lu DB fileid int32_t ld ARG pgno db_pgno_t lu ARG indx u_int32_t lu ARG nbytes u_int32_t lu DBT 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 50 43 OP opcode u_int32_t lu DB fileid int32_t ld ARG pgno db_pgno_t lu ARG prev_pgno db_pgno_t lu ARG next_pgno db_pgno_t lu HDR dbt DBT s POINTER pagelsn DB_LSN * lu POINTER prevlsn DB_LSN * lu POINTER nextlsn DB_LSN * lu END BEGIN_COMPAT big 42 43 ARG opcode u_int32_t lu DB fileid int32_t ld 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 42 44 DB fileid int32_t ld ARG 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_COMPAT relink 42 45 ARG opcode u_int32_t lu DB fileid int32_t ld 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 /* * 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 42 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 42 48 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER prevlsn DB_LSN * lu END /* * pg_alloc: used to record allocating a new page. * * meta_lsn: the original lsn of the page reference by meta_pgno. * meta_pgno the page pointing at the allocated page in the free list. * If the list is unsorted this is the metadata page. * 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. * last_pgno: the last page in the file after this op (4.3+). */ BEGIN_COMPAT pg_alloc 42 49 DB fileid int32_t ld POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t 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 BEGIN pg_alloc 43 49 DB fileid int32_t ld POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t 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 ARG last_pgno db_pgno_t lu END /* * pg_free: used to record freeing a page. * If we are maintaining a sorted free list (during compact) meta_pgno * will be non-zero and refer to the page that preceeds the one we are freeing * in the free list. Meta_lsn will then be the lsn of that 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. * last_pgno: the last page in the file before this op (4.3+). */ BEGIN_COMPAT pg_free 42 50 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t lu PGDBT header DBT s ARG next db_pgno_t lu END BEGIN pg_free 43 50 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t lu PGDBT header DBT s ARG next db_pgno_t lu ARG last_pgno 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 42 51 END /* * pg_freedata: used to record freeing a page with data on it. * * pgno: the page being freed. * meta_lsn: the meta-data page's original lsn. * meta_pgno: the meta-data page number. * header: the header and index entries from the free'd page. * data: the data from the free'd page. * next: the previous next pointer on the metadata page. * last_pgno: the last page in the file before this op (4.3+). */ BEGIN_COMPAT pg_freedata 42 52 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t lu PGDBT header DBT s ARG next db_pgno_t lu PGDDBT data DBT s END BEGIN pg_freedata 43 52 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG meta_pgno db_pgno_t lu PGDBT header DBT s ARG next db_pgno_t lu ARG last_pgno db_pgno_t lu PGDDBT data DBT s END /* * pg_prepare: used to record an aborted page in a prepared transaction. * * pgno: the page being freed. */ X BEGIN pg_prepare 42 53 X DB fileid int32_t ld X ARG pgno db_pgno_t lu X END /* * pg_new: used to record a new page put on the free list. * * 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. */ X BEGIN pg_new 42 54 X DB fileid int32_t ld X ARG pgno db_pgno_t lu X POINTER meta_lsn DB_LSN * lu X ARG meta_pgno db_pgno_t lu X PGDBT header DBT s X ARG next db_pgno_t lu X END /* * pg_init: used to reinitialize a page during truncate. * * pgno: the page being initialized. * header: the header from the page. * data: data that used to be on the page. */ BEGIN pg_init 43 60 DB fileid int32_t ld ARG pgno db_pgno_t lu PGDBT header DBT s PGDDBT data DBT s END /* * pg_sort: sort the free list * * meta: meta page number * meta_lsn: lsn on meta page. * last_free: page number of new last free page. * last_lsn; lsn of last free page. * last_pgno: current last page number. * list: list of pages and lsns to sort. */ BEGIN_COMPAT pg_sort 44 61 DB fileid int32_t ld ARG meta db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG last_free db_pgno_t lu POINTER last_lsn DB_LSN * lu ARG last_pgno db_pgno_t lu DBT list DBT s END /* * pg_truc: truncate the free list * * meta: meta page number * meta_lsn: lsn on meta page. * last_free: page number of new last free page. * last_lsn; lsn of last free page. * last_pgno: current last page number. * list: list of pages and lsns on free list. */ BEGIN pg_trunc 50 66 DB fileid int32_t ld ARG meta db_pgno_t lu POINTER meta_lsn DB_LSN * lu ARG last_free db_pgno_t lu POINTER last_lsn DB_LSN * lu ARG next_free db_pgno_t lu ARG last_pgno db_pgno_t lu PGLIST list DBT s END /* * realloc: allocate a range of pages from the free list * prev_pgno: page number of the page preceeding the set of pages to * be allocated * prev_lsn LSN from the prev_pgno page * next_free page number of the page immediately following the set * of pages to be allocated * ptype The type of page being allocated * list: pairs of page numbers and LSNs corresponding to the pages on * the free list that are being reallocated */ BEGIN realloc 50 36 DB fileid int32_t ld ARG prev_pgno db_pgno_t lu POINTER page_lsn DB_LSN * lu ARG next_free db_pgno_t lu ARG ptype u_int32_t lu PGLIST list DBT s END /* * relink: relink next and previous page pointers * NOTE: moved from btree so its number is from that range. * pgno: The page being removed. * new_pgno: The new page number, if any. * prev_pgno: The previous page, if any. * lsn_prev: The previous page's original lsn. * next_pgno: The next page, if any. * lsn_next: The previous page's original lsn. */ BEGIN relink 44 147 DB fileid int32_t ld ARG pgno db_pgno_t lu ARG new_pgno db_pgno_t lu ARG prev_pgno db_pgno_t lu POINTER lsn_prev DB_LSN * lu ARG next_pgno db_pgno_t lu POINTER lsn_next DB_LSN * lu END /* * Merge: merge two pages. * NOTE: moved from btree so its number is from that range. * pgno: The page number of the target page. * lsn: Orignial LSN of the page. * npgno: The page number of the next, or merged, page. * nlsn: The LSN of hte next page. * hdr: The page header of the next page. * data: The data from the next page. * pg_copy: If 1, then the whole page was copied. */ BEGIN merge 47 148 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER lsn DB_LSN * lu ARG npgno db_pgno_t lu POINTER nlsn DB_LSN * lu PGDBT hdr DBT s PGDDBT data DBT s ARG pg_copy int32_t lu END /* * pgno -- Handles replacing a page number in a record * reference on pgno by indx. * NOTE: moved from btree so its number is from that range. * pgno: The page that is being updated. * lsn: The LSN of the page. * indx: The index of the record being updated. * opgno: Old page number. * npgno: New page number. */ BEGIN pgno 44 149 DB fileid int32_t ld ARG pgno db_pgno_t lu POINTER lsn DB_LSN * lu ARG indx u_int32_t lu ARG opgno db_pgno_t lu ARG npgno db_pgno_t lu END