1 /* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

     2 /*

     3  * Copyright (c) 2005,2006,2007 INRIA

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License version 2 as 

     7  * published by the Free Software Foundation;

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  *

    18  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

    19  */

    20 #include "propagation-delay-model.h"

    21 #include "ns3/random-variable.h"

    22 #include "ns3/mobility-model.h"

    23 #include "ns3/double.h"

    24 

    25 namespace ns3 {

    26 

    27 NS_OBJECT_ENSURE_REGISTERED (PropagationDelayModel);

    28 

    29 TypeId 

    30 PropagationDelayModel::GetTypeId (void)

    31 {

    32   static TypeId tid = TypeId ("ns3::PropagationDelayModel")

    33     .SetParent<Object> ()

    34     ;

    35   return tid;

    36 }

    37 

    38 PropagationDelayModel::~PropagationDelayModel ()

    39 {}

    40 

    41 NS_OBJECT_ENSURE_REGISTERED (RandomPropagationDelayModel);

    42 

    43 TypeId 

    44 RandomPropagationDelayModel::GetTypeId (void)

    45 {

    46   static TypeId tid = TypeId ("ns3::RandomPropagationDelayModel")

    47     .SetParent<PropagationDelayModel> ()

    48     .AddConstructor<RandomPropagationDelayModel> ()

    49     .AddAttribute ("Variable",

    50                    "The random variable which generates random delays (s).",

    51                    RandomVariableValue (UniformVariable (0.0, 1.0)),

    52                    MakeRandomVariableAccessor (&RandomPropagationDelayModel::m_variable),

    53                    MakeRandomVariableChecker ())

    54     ;

    55   return tid;

    56 }

    57 

    58 RandomPropagationDelayModel::RandomPropagationDelayModel ()

    59 {}

    60 RandomPropagationDelayModel::~RandomPropagationDelayModel ()

    61 {}

    62 Time 

    63 RandomPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const

    64 {

    65   return Seconds (m_variable.GetValue ());

    66 }

    67 

    68 NS_OBJECT_ENSURE_REGISTERED (ConstantSpeedPropagationDelayModel);

    69 

    70 TypeId

    71 ConstantSpeedPropagationDelayModel::GetTypeId (void)

    72 {

    73   static TypeId tid = TypeId ("ns3::ConstantSpeedPropagationDelayModel")

    74     .SetParent<PropagationDelayModel> ()

    75     .AddConstructor<ConstantSpeedPropagationDelayModel> ()

    76     .AddAttribute ("Speed", "The speed (m/s)",

    77                    DoubleValue (300000000.0),

    78                    MakeDoubleAccessor (&ConstantSpeedPropagationDelayModel::m_speed),

    79                    MakeDoubleChecker<double> ())

    80     ;

    81   return tid;

    82 }

    83 

    84 ConstantSpeedPropagationDelayModel::ConstantSpeedPropagationDelayModel ()

    85 {}

    86 Time 

    87 ConstantSpeedPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const

    88 {

    89   double distance = a->GetDistanceFrom (b);

    90   double seconds = distance / m_speed;

    91   return Seconds (seconds);

    92 }

    93 void 

    94 ConstantSpeedPropagationDelayModel::SetSpeed (double speed)

    95 {

    96   m_speed = speed;

    97 }

    98 double 

    99 ConstantSpeedPropagationDelayModel::GetSpeed (void) const

   100 {

   101   return m_speed;

   102 }

   103 

   104 } // namespace ns3