diff options
Diffstat (limited to 'storage/innodb_plugin/include/btr0btr.h')
| -rw-r--r-- | storage/innodb_plugin/include/btr0btr.h | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/storage/innodb_plugin/include/btr0btr.h b/storage/innodb_plugin/include/btr0btr.h index e32da9e4c86..6e7bb8fc61e 100644 --- a/storage/innodb_plugin/include/btr0btr.h +++ b/storage/innodb_plugin/include/btr0btr.h @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1994, 2011, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 1994, 2012, 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 @@ -11,8 +11,8 @@ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with -this program; if not, write to the Free Software Foundation, Inc., 59 Temple -Place, Suite 330, Boston, MA 02111-1307 USA +this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA *****************************************************************************/ @@ -488,11 +488,14 @@ UNIV_INTERN ibool btr_compress( /*=========*/ - btr_cur_t* cursor, /*!< in: cursor on the page to merge or lift; - the page must not be empty: in record delete - use btr_discard_page if the page would become - empty */ - mtr_t* mtr); /*!< in: mtr */ + btr_cur_t* cursor, /*!< in/out: cursor on the page to merge + or lift; the page must not be empty: + when deleting records, use btr_discard_page() + if the page would become empty */ + ibool adjust, /*!< in: TRUE if should adjust the + cursor position even if compression occurs */ + mtr_t* mtr) /*!< in/out: mini-transaction */ + __attribute__((nonnull)); /*************************************************************//** Discards a page from a B-tree. This is used to remove the last record from a B-tree page: the whole page must be removed at the same time. This cannot @@ -543,7 +546,10 @@ btr_get_size( /**************************************************************//** Allocates a new file page to be used in an index tree. NOTE: we assume that the caller has made the reservation for free extents! -@return new allocated block, x-latched; NULL if out of space */ +@retval NULL if no page could be allocated +@retval block, rw_lock_x_lock_count(&block->lock) == 1 if allocation succeeded +(init_mtr == mtr, or the page was not previously freed in mtr) +@retval block (not allocated or initialized) otherwise */ UNIV_INTERN buf_block_t* btr_page_alloc( @@ -554,7 +560,12 @@ btr_page_alloc( page split is made */ ulint level, /*!< in: level where the page is placed in the tree */ - mtr_t* mtr); /*!< in: mtr */ + mtr_t* mtr, /*!< in/out: mini-transaction + for the allocation */ + mtr_t* init_mtr) /*!< in/out: mini-transaction + for x-latching and initializing + the page */ + __attribute__((nonnull, warn_unused_result)); /**************************************************************//** Frees a file page used in an index tree. NOTE: cannot free field external storage pages because the page must contain info on its level. */ |