1 : /* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
2 :
3 : This program is free software; you can redistribute it and/or modify
4 : it under the terms of the GNU General Public License as published by
5 : the Free Software Foundation; version 2 of the License.
6 :
7 : This program is distributed in the hope that it will be useful,
8 : but WITHOUT ANY WARRANTY; without even the implied warranty of
9 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 : GNU General Public License for more details.
11 :
12 : You should have received a copy of the GNU General Public License
13 : along with this program; if not, write to the Free Software
14 : Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
15 :
16 : /* read record through position and fix key-position */
17 : /* As maria_rsame but supply a position */
18 :
19 : #include "maria_def.h"
20 :
21 :
22 : /*
23 : Read row based on postion
24 :
25 : @param inx If inx >= 0 postion the given index on found row
26 :
27 : @return
28 : @retval 0 Ok
29 : @retval HA_ERR_KEY_NOT_FOUND Row is deleted
30 : @retval HA_ERR_END_OF_FILE End of file
31 : */
32 :
33 : int maria_rsame_with_pos(MARIA_HA *info, uchar *record, int inx,
34 : MARIA_RECORD_POS filepos)
35 162 : {
36 162 : DBUG_ENTER("maria_rsame_with_pos");
37 162 : DBUG_PRINT("enter",("index: %d filepos: %ld", inx, (long) filepos));
38 :
39 162 : if (inx < -1 ||
40 : (inx >= 0 && ! maria_is_key_active(info->s->state.key_map, inx)))
41 : {
42 0 : DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
43 : }
44 :
45 162 : info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
46 162 : if ((*info->s->read_record)(info, record, filepos))
47 : {
48 0 : if (my_errno == HA_ERR_RECORD_DELETED)
49 0 : my_errno=HA_ERR_KEY_NOT_FOUND;
50 0 : DBUG_RETURN(my_errno);
51 : }
52 162 : info->cur_row.lastpos= filepos;
53 162 : info->lastinx= inx;
54 162 : if (inx >= 0)
55 : {
56 162 : (*info->s->keyinfo[inx].make_key)(info, &info->last_key, (uint) inx,
57 : info->lastkey_buff,
58 : record, info->cur_row.lastpos,
59 : info->cur_row.trid);
60 162 : info->update|=HA_STATE_KEY_CHANGED; /* Don't use indexposition */
61 : }
62 162 : DBUG_RETURN(0);
63 : } /* maria_rsame_pos */
|