1 files changed, 42 insertions, 0 deletions
diff --git a/shared/perf.h b/shared/perf.h
new file mode 100644
index 00000000..62473259
--- /dev/null
+++ b/shared/perf.h
@@ -0,0 +1,42 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#include <windows.h>
+#include <sstream>
+
+class Performance
+{
+public:
+    Performance() : resultWasShown(false), startTime(::GetTickCount()) {}
+
+    ~Performance()
+    {
+        if (!resultWasShown)
+            showResult();
+    }
+
+    void showResult()
+    {
+        resultWasShown = true;
+
+        const DWORD currentTime = ::GetTickCount();
+        const DWORD delta = currentTime - startTime;
+        startTime = currentTime;
+
+        std::ostringstream ss;
+        ss << delta << " ms";
+
+        ::MessageBoxA(NULL, ss.str().c_str(), "Timer", 0);
+    }
+
+private:
+    bool resultWasShown;
+    DWORD startTime;
+};
+
+//two macros for quick performance measurements
+#define PERF_START Performance a;
+#define PERF_STOP  a.showResult();