diff --git a/scheduler/periodic-task.cc b/scheduler/periodic-task.cc
new file mode 100644
index 0000000..110c4df
--- /dev/null
+++ b/scheduler/periodic-task.cc
@@ -0,0 +1,48 @@
+/* -*- 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>
+ */
+
+#include "periodic-task.h"
+#include "logging.h"
+#include <utility>
+
+INIT_LOGGER ("Scheduler.PeriodicTask");
+
+PeriodicTask::PeriodicTask(const Callback &callback, const Tag &tag, const SchedulerPtr &scheduler,
+                           IntervalGeneratorPtr generator)
+  : Task(callback, tag, scheduler)
+  , m_generator(generator)
+{
+}
+
+void
+PeriodicTask::run()
+{
+  if (!m_invoked)
+  {
+    m_invoked = true;
+    m_callback();
+
+    if (m_invoked)
+      {
+        // m_invoked getting back if it is rescheduled inside the callback
+        m_scheduler->rescheduleTask(m_tag);
+      }
+  }
+}
+
+void
+PeriodicTask::reset()
+{
+  m_invoked = false;
+  double interval = m_generator->nextInterval();
+  setTv(interval);
+}