1 files changed, 50 insertions, 0 deletions
diff --git a/lldb/tools/lldb-perf/lib/Gauge.h b/lldb/tools/lldb-perf/lib/Gauge.h
new file mode 100644
index 00000000000..7c843368baa
--- /dev/null
+++ b/lldb/tools/lldb-perf/lib/Gauge.h
@@ -0,0 +1,50 @@
+//
+//  Gauge.h
+//  PerfTestDriver
+//
+//  Created by Enrico Granata on 3/7/13.
+//  Copyright (c) 2013 Apple Inc. All rights reserved.
+//
+
+#ifndef PerfTestDriver_Gauge_h
+#define PerfTestDriver_Gauge_h
+
+#include <functional>
+
+namespace lldb { namespace perf
+{
+template <class TASizeType>
+class Gauge
+{
+public:
+    typedef TASizeType SizeType;
+public:
+    Gauge ()
+    {}
+    
+    virtual
+    ~Gauge ()
+    {}
+    
+    virtual void
+    start () = 0;
+    
+    virtual SizeType
+    stop () = 0;
+    
+    virtual  SizeType
+    value () = 0;
+    
+    template <typename F, typename... Args>
+    SizeType
+    gauge (F f,Args... args)
+    {
+        start();
+        f(args...);
+        return stop();
+    }
+
+};
+} }
+
+#endif