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56 lines
1.9 KiB
Text
56 lines
1.9 KiB
Text
/*****************************************************************************
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Copyright (c) 1995, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/******************************************************************//**
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@file include/fut0fut.ic
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File-based utilities
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Created 12/13/1995 Heikki Tuuri
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***********************************************************************/
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#include "sync0rw.h"
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#include "buf0buf.h"
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/********************************************************************//**
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Gets a pointer to a file address and latches the page.
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@return pointer to a byte in a frame; the file page in the frame is
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bufferfixed and latched */
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UNIV_INLINE
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byte*
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fut_get_ptr(
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/*========*/
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ulint space, /*!< in: space id */
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ulint zip_size,/*!< in: compressed page size in bytes
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or 0 for uncompressed pages */
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fil_addr_t addr, /*!< in: file address */
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ulint rw_latch, /*!< in: RW_S_LATCH, RW_X_LATCH */
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mtr_t* mtr) /*!< in: mtr handle */
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{
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buf_block_t* block;
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byte* ptr;
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ut_ad(addr.boffset < UNIV_PAGE_SIZE);
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ut_ad((rw_latch == RW_S_LATCH) || (rw_latch == RW_X_LATCH));
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block = buf_page_get(space, zip_size, addr.page, rw_latch, mtr);
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ptr = buf_block_get_frame(block) + addr.boffset;
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buf_block_dbg_add_level(block, SYNC_NO_ORDER_CHECK);
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return(ptr);
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}
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