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-rw-r--r--src/share/vm/runtime/mutex.hpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/share/vm/runtime/mutex.hpp b/src/share/vm/runtime/mutex.hpp
index ee0ca717b..66a3295c8 100644
--- a/src/share/vm/runtime/mutex.hpp
+++ b/src/share/vm/runtime/mutex.hpp
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -22,6 +22,13 @@
*
*/
+#ifndef SHARE_VM_RUNTIME_MUTEX_HPP
+#define SHARE_VM_RUNTIME_MUTEX_HPP
+
+#include "memory/allocation.hpp"
+#include "runtime/os.hpp"
+#include "utilities/histogram.hpp"
+
// The SplitWord construct allows us to colocate the contention queue
// (cxq) with the lock-byte. The queue elements are ParkEvents, which are
// always aligned on 256-byte addresses - the least significant byte of
@@ -265,3 +272,5 @@ class Mutex : public Monitor { // degenerate Monitor
}
};
+
+#endif // SHARE_VM_RUNTIME_MUTEX_HPP