1 files changed, 60 insertions, 0 deletions
diff --git a/storage/myisam/mi_rrnd.c b/storage/myisam/mi_rrnd.c
new file mode 100644
index 00000000..4e49e792
--- /dev/null
+++ b/storage/myisam/mi_rrnd.c
@@ -0,0 +1,60 @@
+/* Copyright (c) 2000-2002, 2004-2007 MySQL AB
+   Use is subject to license terms
+
+   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 a record with random-access. The position to the record must
+   get by MI_INFO. The next record can be read with pos= MI_POS_ERROR */
+
+
+#include "myisamdef.h"
+
+/*
+	   Read a row based on position.
+	   If filepos= HA_OFFSET_ERROR then read next row
+	   Return values
+	   Returns one of following values:
+	   0 = Ok.
+	   HA_ERR_RECORD_DELETED = Record is deleted.
+	   HA_ERR_END_OF_FILE = EOF.
+*/
+
+int mi_rrnd(MI_INFO *info, uchar *buf, register my_off_t filepos)
+{
+  my_bool skip_deleted_blocks;
+  DBUG_ENTER("mi_rrnd");
+
+  skip_deleted_blocks=0;
+
+  if (filepos == HA_OFFSET_ERROR)
+  {
+    skip_deleted_blocks=1;
+    if (info->lastpos == HA_OFFSET_ERROR)	/* First read ? */
+      filepos= info->s->pack.header_length;	/* Read first record */
+    else
+      filepos= info->nextpos;
+  }
+
+  if (info->once_flags & RRND_PRESERVE_LASTINX)
+    info->once_flags&= ~RRND_PRESERVE_LASTINX;
+  else
+    info->lastinx= -1;                          /* Can't forward or backward */
+  /* Init all but update-flag */
+  info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
+
+  if (info->opt_flag & WRITE_CACHE_USED && flush_io_cache(&info->rec_cache))
+    DBUG_RETURN(my_errno);
+
+  DBUG_RETURN ((*info->s->read_rnd)(info,buf,filepos,skip_deleted_blocks));
+}