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/*****************************************************************************
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., 51 Franklin
St, Fifth Floor, Boston, MA 02110-1301 USA
*****************************************************************************/
/******************************************************************//**
@file include/fut0fut.ic
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.
@return pointer to a byte in a frame; the file page in the frame is
bufferfixed and latched */
UNIV_INLINE
byte*
fut_get_ptr(
/*========*/
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);
}
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