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-rw-r--r--storage/maria/ma_rsamepos.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/storage/maria/ma_rsamepos.c b/storage/maria/ma_rsamepos.c
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+++ b/storage/maria/ma_rsamepos.c
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+/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/* read record through position and fix key-position */
+/* As maria_rsame but supply a position */
+
+#include "maria_def.h"
+
+
+/*
+ Read row based on postion
+
+ @param inx If inx >= 0 postion the given index on found row
+
+ @return
+ @retval 0 Ok
+ @retval HA_ERR_KEY_NOT_FOUND Row is deleted
+ @retval HA_ERR_END_OF_FILE End of file
+*/
+
+int maria_rsame_with_pos(MARIA_HA *info, uchar *record, int inx,
+ MARIA_RECORD_POS filepos)
+{
+ DBUG_ENTER("maria_rsame_with_pos");
+ DBUG_PRINT("enter",("index: %d filepos: %ld", inx, (long) filepos));
+
+ if (inx < -1 ||
+ (inx >= 0 && ! maria_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_record)(info, record, filepos))
+ {
+ if (my_errno == HA_ERR_RECORD_DELETED)
+ my_errno=HA_ERR_KEY_NOT_FOUND;
+ DBUG_RETURN(my_errno);
+ }
+ info->cur_row.lastpos= filepos;
+ info->lastinx= inx;
+ if (inx >= 0)
+ {
+ (*info->s->keyinfo[inx].make_key)(info, &info->last_key, (uint) inx,
+ info->lastkey_buff,
+ record, info->cur_row.lastpos,
+ info->cur_row.trid);
+ info->update|=HA_STATE_KEY_CHANGED; /* Don't use indexposition */
+ }
+ DBUG_RETURN(0);
+} /* maria_rsame_pos */