1 files changed, 53 insertions, 0 deletions
diff --git a/lldb/tools/lldb-perf/lib/MemoryGauge.h b/lldb/tools/lldb-perf/lib/MemoryGauge.h
new file mode 100644
index 00000000000..272b9969b8c
--- /dev/null
+++ b/lldb/tools/lldb-perf/lib/MemoryGauge.h
@@ -0,0 +1,53 @@
+//
+//  MemoryGauge.h
+//  PerfTestDriver
+//
+//  Created by Enrico Granata on 3/6/13.
+//  Copyright (c) 2013 Apple Inc. All rights reserved.
+//
+
+#ifndef __PerfTestDriver__MemoryGauge__
+#define __PerfTestDriver__MemoryGauge__
+
+#include "Gauge.h"
+
+#include <mach/task_info.h>
+
+namespace lldb { namespace perf
+{
+class MemoryGauge : public Gauge<mach_vm_size_t>
+{
+private:
+    enum class State
+    {
+        eMSNeverUsed,
+        eMSCounting,
+        eMSStopped
+    };
+    
+    SizeType
+    now ();
+    
+    SizeType m_start;
+    State m_state;
+    SizeType m_value;
+
+public:
+    MemoryGauge ();
+    
+    virtual
+    ~MemoryGauge ()
+    {}
+    
+    void
+    start ();
+    
+    SizeType
+    stop ();
+    
+    SizeType
+    value ();
+};
+} }
+
+#endif /* defined(__PerfTestDriver__MemoryGauge__) */