diff --git a/scheduler/task.cc b/scheduler/task.cc
new file mode 100644
index 0000000..980df48
--- /dev/null
+++ b/scheduler/task.cc
@@ -0,0 +1,67 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "task.h"
+#include "scheduler.h"
+
+void
+eventCallback(evutil_socket_t fd, short what, void *arg)
+{
+  Task *task = static_cast<Task *>(arg);
+  task->run();
+  task = NULL;
+}
+
+Task::Task(const Callback &callback, const Tag &tag, const SchedulerPtr &scheduler)
+     : m_callback(callback)
+     , m_tag(tag)
+     , m_scheduler(scheduler)
+     , m_invoked(false)
+     , m_event(NULL)
+     , m_tv(NULL)
+{
+  m_event = evtimer_new(scheduler->base(), eventCallback, this);
+  m_tv = new timeval;
+}
+
+Task::~Task()
+{
+  if (m_event != NULL)
+  {
+    event_free(m_event);
+    m_event = NULL;
+  }
+
+  if (m_tv != NULL)
+  {
+    delete m_tv;
+    m_tv = NULL;
+  }
+}
+
+void
+Task::setTv(double delay)
+{
+  double intPart, fraction;
+  fraction = modf(abs(delay), &intPart);
+  m_tv->tv_sec = static_cast<int>(intPart);
+  m_tv->tv_usec = static_cast<int>((fraction * 1000000));
+}