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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 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
maria_rsame_with_pos(MARIA_HA * info,uchar * record,int inx,MARIA_RECORD_POS filepos)33 int maria_rsame_with_pos(MARIA_HA *info, uchar *record, int inx,
34 MARIA_RECORD_POS filepos)
35 {
36 DBUG_ENTER("maria_rsame_with_pos");
37 DBUG_PRINT("enter",("index: %d filepos: %ld", inx, (long) filepos));
38
39 if (inx < -1 ||
40 (inx >= 0 && ! maria_is_key_active(info->s->state.key_map, inx)))
41 {
42 DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
43 }
44
45 info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
46 if ((*info->s->read_record)(info, record, filepos))
47 {
48 if (my_errno == HA_ERR_RECORD_DELETED)
49 my_errno=HA_ERR_KEY_NOT_FOUND;
50 DBUG_RETURN(my_errno);
51 }
52 info->cur_row.lastpos= filepos;
53 info->lastinx= inx;
54 if (inx >= 0)
55 {
56 (*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 info->update|=HA_STATE_KEY_CHANGED; /* Don't use indexposition */
61 }
62 DBUG_RETURN(0);
63 } /* maria_rsame_pos */
64