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/* Copyright (C) 2000-2002 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "heap_priv.h"
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using namespace drizzled;
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/* Read prev record for key */
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int heap_rprev(HP_INFO *info, unsigned char *record)
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HP_SHARE *share=info->getShare();
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if (info->lastinx < 0)
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return(errno=HA_ERR_WRONG_INDEX);
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keyinfo = share->keydef + info->lastinx;
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if (info->current_ptr || (info->update & HA_STATE_NEXT_FOUND))
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if ((info->update & HA_STATE_DELETED))
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pos= hp_search(info, share->keydef + info->lastinx, &info->lastkey[0], 3);
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pos= hp_search(info, share->keydef + info->lastinx, &info->lastkey[0], 2);
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pos=0; /* Read next after last */
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errno=HA_ERR_KEY_NOT_FOUND;
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info->update=HA_STATE_PREV_FOUND; /* For heap_rprev */
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if (errno == HA_ERR_KEY_NOT_FOUND)
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errno=HA_ERR_END_OF_FILE;
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hp_extract_record(share, record, pos);
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info->update=HA_STATE_AKTIV | HA_STATE_PREV_FOUND;