44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/*****************************************************************************
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Copyright (c) 2016, 2017, Oracle and/or its affiliates. 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, version 2.0, as published by the
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Free Software Foundation.
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This program is also distributed with certain software (including but not
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limited to OpenSSL) that is licensed under separate terms, as designated in a
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particular file or component or in included license documentation. The authors
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of MySQL hereby grant you an additional permission to link the program and
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your derivative works with the separately licensed software that they have
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included with MySQL.
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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, version 2.0,
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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.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*****************************************************************************/
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#ifndef _buf0buf_h_
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#define _buf0buf_h_
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#include "fil0fil.h"
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#include "fil0types.h"
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#include "lot0types.h"
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inline void buf_ptr_get_fsp_addr(const void *ptr, space_id_t *space,
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fil_addr_t *addr) {
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const page_t *page = (const page_t *)ut_align_down(ptr, UNIV_PAGE_SIZE);
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*space = mach_read_from_4(page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
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addr->page = mach_read_from_4(page + FIL_PAGE_OFFSET);
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addr->boffset = ut_align_offset(ptr, UNIV_PAGE_SIZE);
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}
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#endif // _buf0buf_h_
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