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/* Copyright (C) 2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef __UNDO_BUFFER_HPP
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#define __UNDO_BUFFER_HPP
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#include <ndb_global.h>
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#include <kernel_types.h>
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Undo_buffer(class Dbtup*);
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* Alloc space for a copy tuple of size <em>words</em>
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* store address to copy in dst
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* supply pointer to original in curr
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* @return 0 if unable to alloc space
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Uint32 * alloc_copy_tuple(Local_key* dst, Uint32 words);
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* Shrink size of copy tuple
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* note: Only shrink latest allocated tuple
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void shrink_copy_tuple(Local_key* dst, Uint32 words);
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* Free space for copy tuple at key
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void free_copy_tuple(Local_key* key);
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* Get pointer to copy tuple
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Uint32 * get_ptr(Local_key* key);