1 files changed, 38 insertions, 0 deletions
diff --git a/tools/profiler/gecko/ThreadResponsiveness.h b/tools/profiler/gecko/ThreadResponsiveness.h
new file mode 100644
index 000000000..5454c3c05
--- /dev/null
+++ b/tools/profiler/gecko/ThreadResponsiveness.h
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ThreadResponsiveness_h
+#define ThreadResponsiveness_h
+
+#include "nsISupports.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/TimeStamp.h"
+
+class ThreadProfile;
+class CheckResponsivenessTask;
+
+class ThreadResponsiveness {
+public:
+  explicit ThreadResponsiveness(ThreadProfile *aThreadProfile);
+
+  ~ThreadResponsiveness();
+
+  void Update();
+
+  mozilla::TimeDuration GetUnresponsiveDuration(const mozilla::TimeStamp& now) const {
+    return now - mLastTracerTime;
+  }
+
+  bool HasData() const {
+    return !mLastTracerTime.IsNull();
+  }
+private:
+  ThreadProfile* mThreadProfile;
+  RefPtr<CheckResponsivenessTask> mActiveTracerEvent;
+  mozilla::TimeStamp mLastTracerTime;
+};
+
+#endif
+