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Diffstat (limited to 'storage/xtradb/include/fut0fut.ic')
-rw-r--r-- | storage/xtradb/include/fut0fut.ic | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/storage/xtradb/include/fut0fut.ic b/storage/xtradb/include/fut0fut.ic new file mode 100644 index 00000000000..f7e820da008 --- /dev/null +++ b/storage/xtradb/include/fut0fut.ic @@ -0,0 +1,55 @@ +/***************************************************************************** + +Copyright (c) 1995, 2009, Innobase Oy. 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 +Foundation; version 2 of the License. + +This program is distributed in the hope that it will be useful, but WITHOUT +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 + +*****************************************************************************/ + +/********************************************************************** +File-based utilities + +Created 12/13/1995 Heikki Tuuri +***********************************************************************/ + +#include "sync0rw.h" +#include "buf0buf.h" + +/************************************************************************ +Gets a pointer to a file address and latches the page. */ +UNIV_INLINE +byte* +fut_get_ptr( +/*========*/ + /* out: pointer to a byte in a frame; the file + page in the frame is bufferfixed and latched */ + ulint space, /* in: space id */ + ulint zip_size,/* in: compressed page size in bytes + or 0 for uncompressed pages */ + fil_addr_t addr, /* in: file address */ + ulint rw_latch, /* in: RW_S_LATCH, RW_X_LATCH */ + mtr_t* mtr) /* in: mtr handle */ +{ + buf_block_t* block; + byte* ptr; + + ut_ad(addr.boffset < UNIV_PAGE_SIZE); + ut_ad((rw_latch == RW_S_LATCH) || (rw_latch == RW_X_LATCH)); + + block = buf_page_get(space, zip_size, addr.page, rw_latch, mtr); + ptr = buf_block_get_frame(block) + addr.boffset; + + buf_block_dbg_add_level(block, SYNC_NO_ORDER_CHECK); + + return(ptr); +} |