1 files changed, 69 insertions, 0 deletions
diff --git a/runtimes/contrib/xtrace/src/event_recorder.h b/runtimes/contrib/xtrace/src/event_recorder.h
new file mode 100644
index 000000000..9cc992178
--- /dev/null
+++ b/runtimes/contrib/xtrace/src/event_recorder.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __EVENT_RECORDER_H__
+#define __EVENT_RECORDER_H__
+
+#include <map>
+#include <memory>
+
+#include <ostream>
+
+struct Event
+{
+  std::string name;
+  std::string ph; /* REQUIRED */
+  std::string ts; /* REQUIRED */
+};
+
+struct DurationEvent : public Event
+{
+  // TO BE FILLED
+};
+
+struct CounterEvent : public Event
+{
+  std::map<std::string, std::string> values;
+};
+
+//
+// Record Event as Chrome Trace Event File Format
+//
+// Refrence: https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/edit
+//
+class EventRecorder
+{
+public:
+  EventRecorder(std::ostream &os) : _os(os)
+  {
+    // DO NOTHING
+  }
+
+public:
+  void init();
+
+public:
+  void emit(const DurationEvent &evt);
+  void emit(const CounterEvent &evt);
+
+public:
+  void fini();
+
+private:
+  std::ostream &_os;
+};
+
+#endif // __EVENT_RECORDER_H__