1 files changed, 65 insertions, 0 deletions
diff --git a/storage/myisammrg/myrg_queue.c b/storage/myisammrg/myrg_queue.c
new file mode 100644
index 00000000000..dfb434d6397
--- /dev/null
+++ b/storage/myisammrg/myrg_queue.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 2000 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; either version 2 of the License, or
+   (at your option) any later version.
+
+   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 */
+
+#include "myrg_def.h"
+
+static int queue_key_cmp(void *keyseg, byte *a, byte *b)
+{
+  MI_INFO *aa=((MYRG_TABLE *)a)->table;
+  MI_INFO *bb=((MYRG_TABLE *)b)->table;
+  uint not_used;
+  int ret= ha_key_cmp((HA_KEYSEG *)keyseg, aa->lastkey, bb->lastkey,
+		       USE_WHOLE_KEY, SEARCH_FIND, &not_used);
+  return ret < 0 ? -1 : ret > 0 ? 1 : 0;
+} /* queue_key_cmp */
+
+
+int _myrg_init_queue(MYRG_INFO *info,int inx,enum ha_rkey_function search_flag)
+{
+  int error=0;
+  QUEUE *q= &(info->by_key);
+
+  if (inx < (int) info->keys)
+  {
+    if (!is_queue_inited(q))
+    {
+      if (init_queue(q,info->tables, 0,
+		     (myisam_readnext_vec[search_flag] == SEARCH_SMALLER),
+		     queue_key_cmp,
+		     info->open_tables->table->s->keyinfo[inx].seg))
+	error=my_errno;
+    }
+    else
+    {
+      if (reinit_queue(q,info->tables, 0,
+		       (myisam_readnext_vec[search_flag] == SEARCH_SMALLER),
+		       queue_key_cmp,
+		       info->open_tables->table->s->keyinfo[inx].seg))
+	error=my_errno;
+    }
+  }
+  return error;
+}
+
+int _myrg_mi_read_record(MI_INFO *info, byte *buf)
+{
+  if (!(*info->read_record)(info,info->lastpos,buf))
+  {
+    info->update|= HA_STATE_AKTIV;		/* Record is read */
+    return 0;
+  }
+  return my_errno;
+}