1 files changed, 64 insertions, 0 deletions
diff --git a/tools/lldb-perf/lib/Gauge.h b/tools/lldb-perf/lib/Gauge.h
new file mode 100644
index 0000000000000..fc5c444a38b83
--- /dev/null
+++ b/tools/lldb-perf/lib/Gauge.h
@@ -0,0 +1,64 @@
+//===-- Gauge.h -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PerfTestDriver_Gauge_h
+#define PerfTestDriver_Gauge_h
+
+#include <functional>
+#include <string>
+
+#include "Results.h"
+
+namespace lldb_perf {
+
+template <class T>
+class Gauge
+{
+public:
+    typedef T ValueType;
+
+    Gauge ()
+    {}
+    
+    virtual
+    ~Gauge ()
+    {}
+    
+    virtual void
+    Start () = 0;
+    
+    virtual ValueType
+    Stop () = 0;
+
+    virtual ValueType
+    GetStartValue () const = 0;
+
+    virtual ValueType
+    GetStopValue () const = 0;
+
+    virtual ValueType
+    GetDeltaValue () const = 0;
+
+};
+
+template <class T>
+Results::ResultSP GetResult (const char *description, T value);
+
+template <>
+Results::ResultSP GetResult (const char *description, double value);
+
+template <>
+Results::ResultSP GetResult (const char *description, uint64_t value);
+
+template <>
+Results::ResultSP GetResult (const char *description, std::string value);
+
+}
+
+#endif