115 lines
2.5 KiB
C++
115 lines
2.5 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2007 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "watchdog.h"
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namespace ns3 {
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Watchdog::Watchdog ()
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: m_impl (0),
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m_event (),
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m_end (MicroSeconds (0))
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{}
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Watchdog::~Watchdog ()
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{
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delete m_impl;
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}
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void
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Watchdog::Ping (Time delay)
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{
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Time end = Simulator::Now () + delay;
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m_end = std::max (m_end, end);
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if (m_event.IsRunning ())
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{
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return;
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}
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m_event = Simulator::Schedule (m_end - Now (), &Watchdog::Expire, this);
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}
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void
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Watchdog::Expire (void)
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{
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if (m_end == Simulator::Now ())
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{
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m_impl->Invoke ();
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}
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else
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{
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m_event = Simulator::Schedule (m_end - Now (), &Watchdog::Expire, this);
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}
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}
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} // namespace ns3
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#ifdef RUN_SELF_TESTS
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#include "ns3/test.h"
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namespace ns3 {
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class WatchdogTests : public Test
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{
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public:
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WatchdogTests ();
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virtual bool RunTests (void);
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private:
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void Expire (Time expected);
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bool m_error;
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};
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WatchdogTests::WatchdogTests ()
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: Test ("Watchdog")
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{}
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void
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WatchdogTests::Expire (Time expected)
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{
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bool result = true;
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NS_TEST_ASSERT_EQUAL (Simulator::Now (), expected);
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m_error = !result;
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}
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bool
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WatchdogTests::RunTests (void)
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{
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bool result = true;
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m_error = false;
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Watchdog watchdog;
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watchdog.SetFunction (&WatchdogTests::Expire, this);
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watchdog.SetArguments (MicroSeconds (40));
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watchdog.Ping (MicroSeconds (10));
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Simulator::Schedule (MicroSeconds (5), &Watchdog::Ping, &watchdog, MicroSeconds (20));
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Simulator::Schedule (MicroSeconds (20), &Watchdog::Ping, &watchdog, MicroSeconds (2));
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Simulator::Schedule (MicroSeconds (23), &Watchdog::Ping, &watchdog, MicroSeconds (17));
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Simulator::Run ();
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NS_TEST_ASSERT (!m_error);
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Simulator::Destroy ();
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return result;
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}
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static WatchdogTests g_watchdogTests;
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} // namespace ns3
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#endif /* RUN_SELF_TESTS */
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