add CreateObject<> to instanciate subclasses of the Object base class. Replaces Create<>.
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2005,2006,2007 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 "propagation-delay-model.h"
#include "ns3/random-variable.h"
#include "ns3/default-value.h"
#include "ns3/random-variable-default-value.h"
#include "ns3/mobility-model.h"
namespace ns3 {
enum ModelType
{
RANDOM,
CONSTANT_SPEED
};
static EnumDefaultValue<enum ModelType> g_modelType
("PropagationDelayModelType",
"The type of propagation delay model to use.",
CONSTANT_SPEED, "ConstantSpeed",
RANDOM, "Random",
0, (void*)0);
static NumericDefaultValue<double> g_speed
("PropagationDelayConstantSpeed",
"The speed (m/s) of propagation if a ConstantSpeed propagation delay model is used.",
300000000.0);
static RandomVariableDefaultValue g_random
("PropagationDelayRandomDistribution",
"The delay distribution to use if a Random propagation delay model is used.",
"Uniform:0:1.0");
PropagationDelayModel::~PropagationDelayModel ()
{}
Ptr<PropagationDelayModel>
PropagationDelayModel::CreateDefault (void)
{
switch (g_modelType.GetValue ()) {
case CONSTANT_SPEED:
return CreateObject<ConstantSpeedPropagationDelayModel> (g_speed.GetValue ());
break;
case RANDOM:
return CreateObject<RandomPropagationDelayModel> ();
break;
default:
NS_ASSERT (false);
return 0;
break;
}
}
RandomPropagationDelayModel::RandomPropagationDelayModel ()
: m_variable (g_random.GetCopy ())
{}
RandomPropagationDelayModel::RandomPropagationDelayModel (const RandomVariable &variable)
: m_variable (variable.Copy ())
{}
RandomPropagationDelayModel::~RandomPropagationDelayModel ()
{
delete m_variable;
}
Time
RandomPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const
{
return Seconds (m_variable->GetValue ());
}
ConstantSpeedPropagationDelayModel::ConstantSpeedPropagationDelayModel (double speed)
: m_speed (speed)
{}
Time
ConstantSpeedPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const
{
double distance = a->GetDistanceFrom (b);
double seconds = distance / m_speed;
return Seconds (seconds);
}
void
ConstantSpeedPropagationDelayModel::SetSpeed (double speed)
{
m_speed = speed;
}
double
ConstantSpeedPropagationDelayModel::GetSpeed (void) const
{
return m_speed;
}
} // namespace ns3