synchronizer.cc

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/*
 * Copyright (c) 2008 University of Washington
 *
 * 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
 */
 
#include "synchronizer.h"
 
#include "log.h"
 
namespace ns3
{
 
NS_LOG_COMPONENT_DEFINE("Synchronizer");
 
NS_OBJECT_ENSURE_REGISTERED(Synchronizer);
 
TypeId
Synchronizer::GetTypeId()
{
    static TypeId tid = TypeId("ns3::Synchronizer").SetParent<Object>().SetGroupName("Core");
    return tid;
}
 
Synchronizer::Synchronizer()
    : m_realtimeOriginNano(0),
      m_simOriginNano(0)
{
    NS_LOG_FUNCTION(this);
}
 
Synchronizer::~Synchronizer()
{
    NS_LOG_FUNCTION(this);
}
 
bool
Synchronizer::Realtime()
{
    NS_LOG_FUNCTION(this);
    return DoRealtime();
}
 
uint64_t
Synchronizer::GetCurrentRealtime()
{
    NS_LOG_FUNCTION(this);
    return NanosecondToTimeStep(DoGetCurrentRealtime());
}
 
void
Synchronizer::SetOrigin(uint64_t ts)
{
    NS_LOG_FUNCTION(this << ts);
    m_simOriginNano = TimeStepToNanosecond(ts);
    DoSetOrigin(m_simOriginNano);
}
 
uint64_t
Synchronizer::GetOrigin()
{
    NS_LOG_FUNCTION(this);
    return NanosecondToTimeStep(m_simOriginNano);
}
 
int64_t
Synchronizer::GetDrift(uint64_t ts)
{
    NS_LOG_FUNCTION(this << ts);
    int64_t tDrift = DoGetDrift(TimeStepToNanosecond(ts));
 
    if (tDrift < 0)
    {
        return -static_cast<int64_t>(NanosecondToTimeStep(-tDrift));
    }
    else
    {
        return static_cast<int64_t>(NanosecondToTimeStep(tDrift));
    }
}
 
bool
Synchronizer::Synchronize(uint64_t tsCurrent, uint64_t tsDelay)
{
    NS_LOG_FUNCTION(this << tsCurrent << tsDelay);
    return DoSynchronize(TimeStepToNanosecond(tsCurrent), TimeStepToNanosecond(tsDelay));
}
 
void
Synchronizer::Signal()
{
    NS_LOG_FUNCTION(this);
    DoSignal();
}
 
void
Synchronizer::SetCondition(bool cond)
{
    NS_LOG_FUNCTION(this << cond);
    DoSetCondition(cond);
}
 
void
Synchronizer::EventStart()
{
    NS_LOG_FUNCTION(this);
    DoEventStart();
}
 
uint64_t
Synchronizer::EventEnd()
{
    NS_LOG_FUNCTION(this);
    return NanosecondToTimeStep(DoEventEnd());
}
 
uint64_t
Synchronizer::TimeStepToNanosecond(uint64_t ts)
{
    NS_LOG_FUNCTION(this << ts);
    return TimeStep(ts).GetNanoSeconds();
}
 
uint64_t
Synchronizer::NanosecondToTimeStep(uint64_t ns)
{
    NS_LOG_FUNCTION(this << ns);
    return NanoSeconds(ns).GetTimeStep();
}
 
} // namespace ns3