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diff --git a/storage/xtradb/include/srv0que.h b/storage/xtradb/include/srv0que.h
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+++ b/storage/xtradb/include/srv0que.h
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+/*****************************************************************************
+
+Copyright (c) 1996, 2009, Innobase Oy. 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 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
+
+*****************************************************************************/
+
+/******************************************************
+Server query execution
+
+Created 6/5/1996 Heikki Tuuri
+*******************************************************/
+
+#ifndef srv0que_h
+#define srv0que_h
+
+#include "univ.i"
+#include "que0types.h"
+
+/**************************************************************************
+Checks if there is work to do in the server task queue. If there is, the
+thread starts processing a task. Before leaving, it again checks the task
+queue and picks a new task if any exists. This is called by a SRV_WORKER
+thread. */
+UNIV_INTERN
+void
+srv_que_task_queue_check(void);
+/*==========================*/
+/**************************************************************************
+Performs round-robin on the server tasks. This is called by a SRV_WORKER
+thread every second or so. */
+UNIV_INTERN
+que_thr_t*
+srv_que_round_robin(
+/*================*/
+				/* out: the new (may be == thr) query thread
+				to run */
+	que_thr_t*	thr);	/* in: query thread */
+/**************************************************************************
+Enqueues a task to server task queue and releases a worker thread, if
+there exists one suspended. */
+UNIV_INTERN
+void
+srv_que_task_enqueue(
+/*=================*/
+	que_thr_t*	thr);	/* in: query thread */
+/**************************************************************************
+Enqueues a task to server task queue and releases a worker thread, if
+there exists one suspended. */
+UNIV_INTERN
+void
+srv_que_task_enqueue_low(
+/*=====================*/
+	que_thr_t*	thr);	/* in: query thread */
+
+#endif
+