1 files changed, 84 insertions, 0 deletions
diff --git a/lldb/tools/lldb-perf/lib/Metric.cpp b/lldb/tools/lldb-perf/lib/Metric.cpp
new file mode 100644
index 00000000000..885413fc65a
--- /dev/null
+++ b/lldb/tools/lldb-perf/lib/Metric.cpp
@@ -0,0 +1,84 @@
+//
+//  Metric.cpp
+//  PerfTestDriver
+//
+//  Created by Enrico Granata on 3/7/13.
+//  Copyright (c) 2013 Apple Inc. All rights reserved.
+//
+
+#include "Metric.h"
+
+#include "CFCMutableArray.h"
+#include "CFCMutableDictionary.h"
+#include "CFCString.h"
+
+using namespace lldb::perf;
+
+template <class T>
+Metric<T>::Metric () : Metric ("")
+{}
+
+template <class T>
+Metric<T>::Metric (const char* n) :
+m_name(n ? n : ""),
+m_dataset ()
+{}
+
+template <class T>
+void
+Metric<T>::append (T v)
+{
+    m_dataset.push_back(v);
+}
+
+template <class T>
+size_t
+Metric<T>::count ()
+{
+    return m_dataset.size();
+}
+
+template <class T>
+T
+Metric<T>::sum ()
+{
+    T sum = 0;
+    for (auto v : m_dataset)
+        sum += v;
+    return sum;
+}
+
+template <class T>
+T
+Metric<T>::average ()
+{
+    return sum()/count();
+}
+
+template <class T>
+const char*
+Metric<T>::name ()
+{
+    return m_name.c_str();
+}
+
+template <class T>
+void Metric<T>::WriteImpl (CFCMutableArray& parent, identity<double>)
+{
+    CFCMutableDictionary dict;
+    dict.AddValueCString(CFCString("name").get(),m_name.c_str(), true);
+    dict.AddValueDouble(CFCString("value").get(),this->average(), true);
+    parent.AppendValue(dict.get(), true);
+}
+
+template <class T>
+void Metric<T>::WriteImpl (CFCMutableArray& parent, identity<mach_vm_size_t>)
+{
+    CFCMutableDictionary dict;
+    dict.AddValueCString(CFCString("name").get(),m_name.c_str(), true);
+    dict.AddValueUInt64(CFCString("value").get(),this->average(), true);
+    parent.AppendValue(dict.get(), true);
+}
+
+template class lldb::perf::Metric<double>;
+template class lldb::perf::Metric<mach_vm_size_t>;