70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
|
|
/*
|
|
* Copyright (c) 2007 INRIA
|
|
*
|
|
* 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
|
|
*/
|
|
#include "watchdog.h"
|
|
#include "log.h"
|
|
|
|
NS_LOG_COMPONENT_DEFINE ("Watchdog");
|
|
|
|
namespace ns3 {
|
|
|
|
Watchdog::Watchdog ()
|
|
: m_impl (0),
|
|
m_event (),
|
|
m_end (MicroSeconds (0))
|
|
{
|
|
NS_LOG_FUNCTION_NOARGS ();
|
|
}
|
|
|
|
Watchdog::~Watchdog ()
|
|
{
|
|
NS_LOG_FUNCTION (this);
|
|
delete m_impl;
|
|
}
|
|
|
|
void
|
|
Watchdog::Ping (Time delay)
|
|
{
|
|
NS_LOG_FUNCTION (this << delay);
|
|
Time end = Simulator::Now () + delay;
|
|
m_end = std::max (m_end, end);
|
|
if (m_event.IsRunning ())
|
|
{
|
|
return;
|
|
}
|
|
m_event = Simulator::Schedule (m_end - Now (), &Watchdog::Expire, this);
|
|
}
|
|
|
|
void
|
|
Watchdog::Expire (void)
|
|
{
|
|
NS_LOG_FUNCTION (this);
|
|
if (m_end == Simulator::Now ())
|
|
{
|
|
m_impl->Invoke ();
|
|
}
|
|
else
|
|
{
|
|
m_event = Simulator::Schedule (m_end - Now (), &Watchdog::Expire, this);
|
|
}
|
|
}
|
|
|
|
} // namespace ns3
|
|
|