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diff --git a/storage/perfschema/cursor_by_host.h b/storage/perfschema/cursor_by_host.h
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+/* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License, version 2.0,
+  as published by the Free Software Foundation.
+
+  This program is also distributed with certain software (including
+  but not limited to OpenSSL) that is licensed under separate terms,
+  as designated in a particular file or component or in included license
+  documentation.  The authors of MySQL hereby grant you an additional
+  permission to link the program and your derivative works with the
+  separately licensed software that they have included with MySQL.
+
+  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, version 2.0, 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 */
+
+#ifndef CURSOR_BY_HOST_H
+#define CURSOR_BY_HOST_H
+
+/**
+  @file storage/perfschema/cursor_by_host.h
+  Cursor CURSOR_BY_HOST (declarations).
+*/
+
+#include "pfs_engine_table.h"
+#include "pfs_host.h"
+#include "table_helper.h"
+
+/**
+  @addtogroup Performance_schema_tables
+  @{
+*/
+
+/** Cursor CURSOR_BY_HOST. */
+class cursor_by_host : public PFS_engine_table
+{
+public:
+  static ha_rows get_row_count();
+
+  virtual int rnd_next();
+  virtual int rnd_pos(const void *pos);
+  virtual void reset_position(void);
+
+protected:
+  cursor_by_host(const PFS_engine_table_share *share);
+
+public:
+  ~cursor_by_host()
+  {}
+
+protected:
+  virtual void make_row(PFS_host *host)= 0;
+
+private:
+  /** Current position. */
+  PFS_simple_index m_pos;
+  /** Next position. */
+  PFS_simple_index m_next_pos;
+};
+
+/** @} */
+#endif