merge paul's extractor code

1 files changed, 10 insertions, 0 deletions

diff --git a/extractor/time_util.cc b/extractor/time_util.cc
new file mode 100644
index 00000000..e46a0c3d
--- /dev/null
+++ b/extractor/time_util.cc
@@ -0,0 +1,10 @@
+#include "time_util.h"
+
+namespace extractor {
+
+double GetDuration(const Clock::time_point& start_time,
+                   const Clock::time_point& stop_time) {
+  return duration_cast<milliseconds>(stop_time - start_time).count() / 1000.0;
+}
+
+} // namespace extractor