diff options
Diffstat (limited to 'storage/innobase/include/btr0cur.h')
| -rw-r--r-- | storage/innobase/include/btr0cur.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/storage/innobase/include/btr0cur.h b/storage/innobase/include/btr0cur.h index be918439f59..e0907ac7bd0 100644 --- a/storage/innobase/include/btr0cur.h +++ b/storage/innobase/include/btr0cur.h @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1994, 2010, Innobase Oy. All Rights Reserved. +Copyright (c) 1994, 2011, Oracle and/or its affiliates. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -36,6 +36,9 @@ Created 10/16/1994 Heikki Tuuri #define BTR_NO_LOCKING_FLAG 2 /* do no record lock checking */ #define BTR_KEEP_SYS_FLAG 4 /* sys fields will be found from the update vector or inserted entry */ +#define BTR_KEEP_POS_FLAG 8 /* btr_cur_pessimistic_update() + must keep cursor position when + moving columns to big_rec */ #ifndef UNIV_HOTBACKUP #include "que0types.h" @@ -310,7 +313,9 @@ btr_cur_pessimistic_update( /*=======================*/ ulint flags, /*!< in: undo logging, locking, and rollback flags */ - btr_cur_t* cursor, /*!< in: cursor on the record to update */ + btr_cur_t* cursor, /*!< in/out: cursor on the record to update; + cursor may become invalid if *big_rec == NULL + || !(flags & BTR_KEEP_POS_FLAG) */ mem_heap_t** heap, /*!< in/out: pointer to memory heap, or NULL */ big_rec_t** big_rec,/*!< out: big rec vector whose fields have to be stored externally by the caller, or NULL */ @@ -322,6 +327,16 @@ btr_cur_pessimistic_update( que_thr_t* thr, /*!< in: query thread */ mtr_t* mtr); /*!< in: mtr; must be committed before latching any further pages */ +/***************************************************************** +Commits and restarts a mini-transaction so that it will retain an +x-lock on index->lock and the cursor page. */ +UNIV_INTERN +void +btr_cur_mtr_commit_and_start( +/*=========================*/ + btr_cur_t* cursor, /*!< in: cursor */ + mtr_t* mtr) /*!< in/out: mini-transaction */ + UNIV_COLD __attribute__((nonnull)); /***********************************************************//** Marks a clustered index record deleted. Writes an undo log record to undo log on this delete marking. Writes in the trx id field the id @@ -364,10 +379,13 @@ UNIV_INTERN ibool btr_cur_compress_if_useful( /*=======================*/ - btr_cur_t* cursor, /*!< in: cursor on the page to compress; + btr_cur_t* cursor, /*!< in/out: cursor on the page to compress; cursor does not stay valid if compression occurs */ - mtr_t* mtr); /*!< in: mtr */ + ibool adjust, /*!< in: TRUE if should adjust the + cursor position even if compression occurs */ + mtr_t* mtr) /*!< in/out: mini-transaction */ + __attribute__((nonnull)); /*******************************************************//** Removes the record on which the tree cursor is positioned. It is assumed that the mtr has an x-latch on the page where the cursor is positioned, |