Drizzled Public API Documentation

hp_rsame.cc
1 /* Copyright (C) 2000-2002 MySQL 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 St, Fifth Floor, Boston, MA 02110-1301 USA */
15 
16 /* re-read current record */
17 
18 #include "heap_priv.h"
19 #include <drizzled/error_t.h>
20 
21  /* If inx != -1 the new record is read according to index
22  (for next/prev). Record must in this case point to last record
23  Returncodes:
24  0 = Ok.
25  HA_ERR_RECORD_DELETED = Record was removed
26  HA_ERR_KEY_NOT_FOUND = Record not found with key
27  */
28 
29 int heap_rsame(register HP_INFO *info, unsigned char *record, int inx)
30 {
31  HP_SHARE *share= info->getShare();
32 
33  test_active(info);
34  if (get_chunk_status(&share->recordspace, info->current_ptr) == CHUNK_STATUS_ACTIVE)
35  {
36  if (inx < -1 || inx >= (int) share->keys)
37  {
38  return(errno= drizzled::HA_ERR_WRONG_INDEX);
39  }
40  else if (inx != -1)
41  {
42  info->lastinx=inx;
43  hp_make_key(share->keydef + inx, &info->lastkey[0], record);
44  if (!hp_search(info, share->keydef + inx, &info->lastkey[0], 3))
45  {
46  info->update=0;
47  return(errno);
48  }
49  }
50  hp_extract_record(share, record, info->current_ptr);
51  return(0);
52  }
53  info->update=0;
54 
55  return(errno= drizzled::HA_ERR_RECORD_DELETED);
56 }