diff --git a/scheduler/one-time-task.h b/scheduler/one-time-task.h
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+++ b/scheduler/one-time-task.h
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ *                     Zhenkai Zhu
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef ONE_TIME_TASK_H
+#define ONE_TIME_TASK_H
+
+#include "task.h"
+
+class OneTimeTask : public Task
+{
+public:
+  OneTimeTask(const Callback &callback, const Tag &tag, const SchedulerPtr &scheduler, double delay);
+  virtual ~OneTimeTask(){}
+
+  // invoke callback and mark self as invoked and deregister self from scheduler
+  virtual void
+  run() _OVERRIDE;
+
+  // after reset, the task is marked as un-invoked and can be add to scheduler again, with same delay
+  // if not invoked yet, no effect
+  virtual void
+  reset() _OVERRIDE;
+
+private:
+  // this is to deregister itself from scheduler automatically after invoke
+  void
+  deregisterSelf();
+};
+
+
+#endif // EVENT_SCHEDULER_H