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57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Copyright (c) 2000-2002, 2005-2007 MySQL AB
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Use is subject to license terms
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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 Street, Fifth Floor, Boston, MA 02110-1335 USA */
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/* re-read current record */
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#include "heapdef.h"
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/* If inx != -1 the new record is read according to index
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(for next/prev). Record must in this case point to last record
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Returncodes:
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0 = Ok.
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HA_ERR_RECORD_DELETED = Record was removed
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HA_ERR_KEY_NOT_FOUND = Record not found with key
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*/
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int heap_rsame(register HP_INFO *info, uchar *record, int inx)
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{
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HP_SHARE *share=info->s;
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DBUG_ENTER("heap_rsame");
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test_active(info);
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if (info->current_ptr[share->visible])
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{
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if (inx < -1 || inx >= (int) share->keys)
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{
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DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
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}
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else if (inx != -1)
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{
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info->lastinx=inx;
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hp_make_key(share->keydef + inx, info->lastkey, record);
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if (!hp_search(info, share->keydef + inx, info->lastkey, 3))
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{
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info->update= 0;
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DBUG_RETURN(my_errno);
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}
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}
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memcpy(record,info->current_ptr,(size_t) share->reclength);
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DBUG_RETURN(0);
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}
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info->update=0;
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DBUG_RETURN(my_errno=HA_ERR_RECORD_DELETED);
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}
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