/* Copyright (C) 2000-2001, 2005 MySQL AB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* read record through position and fix key-position */ /* As mi_rsame but supply a position */ #include "myisamdef.h" #include /* ** If inx >= 0 update index pointer ** Returns one of the following values: ** 0 = Ok. ** HA_ERR_KEY_NOT_FOUND = Row is deleted ** HA_ERR_END_OF_FILE = End of file */ int mi_rsame_with_pos(MI_INFO *info, unsigned char *record, int inx, my_off_t filepos) { if (inx < -1 || (inx >= 0 && ! mi_is_key_active(info->s->state.key_map, inx))) { 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; 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 */ } return(0); } /* mi_rsame_pos */