int mi_rsame_with_pos(MI_INFO *info, uchar *record, int inx, my_off_t filepos)
{
DBUG_ENTER("mi_rsame_with_pos");
DBUG_PRINT("enter",("index: %d filepos: %ld", inx, (long) filepos));
if (inx < -1 ||
(inx >= 0 && ! mi_is_key_active(info->s->state.key_map, inx)))
{
DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
}
info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
if ((*info->s->read_rnd)(info,record,filepos,0))
{
if (my_errno == HA_ERR_RECORD_DELETED)
my_errno=HA_ERR_KEY_NOT_FOUND;
DBUG_RETURN(my_errno);
}
info->lastpos=filepos;
info->lastinx=inx;
if (inx >= 0)
{
info->lastkey_length=_mi_make_key(info,(uint) inx,info->lastkey,record,
info->lastpos);
info->update|=HA_STATE_KEY_CHANGED; /* Don't use indexposition */
}
DBUG_RETURN(0);
} /* mi_rsame_pos */
int mi_rsame(MI_INFO *info, uchar *record, int inx)
{
DBUG_ENTER("mi_rsame");
if (inx != -1 && ! mi_is_key_active(info->s->state.key_map, inx))
{
set_my_errno(HA_ERR_WRONG_INDEX);
DBUG_RETURN(HA_ERR_WRONG_INDEX);
}
if (info->lastpos == HA_OFFSET_ERROR || info->update & HA_STATE_DELETED)
{
set_my_errno(HA_ERR_KEY_NOT_FOUND);
DBUG_RETURN(HA_ERR_KEY_NOT_FOUND); /* No current record */
}
info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
/* Read row from data file */
if (fast_mi_readinfo(info))
DBUG_RETURN(my_errno());
if (inx >= 0)
{
info->lastinx=inx;
info->lastkey_length=_mi_make_key(info,(uint) inx,info->lastkey,record,
info->lastpos);
if (info->s->concurrent_insert)
mysql_rwlock_rdlock(&info->s->key_root_lock[inx]);
(void) _mi_search(info,info->s->keyinfo+inx,info->lastkey, USE_WHOLE_KEY,
SEARCH_SAME,
info->s->state.key_root[inx]);
if (info->s->concurrent_insert)
mysql_rwlock_unlock(&info->s->key_root_lock[inx]);
}
if (!(*info->read_record)(info,info->lastpos,record))
DBUG_RETURN(0);
if (my_errno() == HA_ERR_RECORD_DELETED)
set_my_errno(HA_ERR_KEY_NOT_FOUND);
DBUG_RETURN(my_errno());
} /* mi_rsame */
