/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright 2007 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 "ns3/log.h"
#include "ns3/ipv4-address.h"
#include "ns3/nstime.h"
#include "ns3/inet-socket-address.h"
#include "ns3/socket.h"
#include "ns3/simulator.h"
#include "ns3/socket-factory.h"
#include "ns3/packet.h"
#include "ns3/uinteger.h"
#include "udp-echo-client.h"
namespace ns3 {
NS_LOG_COMPONENT_DEFINE ("UdpEchoClientApplication");
NS_OBJECT_ENSURE_REGISTERED (UdpEchoClient);
TypeId
UdpEchoClient::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::UdpEchoClient")
.SetParent<Application> ()
.AddConstructor<UdpEchoClient> ()
.AddAttribute ("MaxPackets", "XXX",
UintegerValue (100),
MakeUintegerAccessor (&UdpEchoClient::m_count),
MakeUintegerChecker<uint32_t> ())
.AddAttribute ("Interval", "XXX",
TimeValue (Seconds (1.0)),
MakeTimeAccessor (&UdpEchoClient::m_interval),
MakeTimeChecker ())
.AddAttribute ("RemoteIpv4", "XXX",
Ipv4AddressValue (),
MakeIpv4AddressAccessor (&UdpEchoClient::m_peerAddress),
MakeIpv4AddressChecker ())
.AddAttribute ("RemotePort", "XXX",
UintegerValue (0),
MakeUintegerAccessor (&UdpEchoClient::m_peerPort),
MakeUintegerChecker<uint16_t> ())
.AddAttribute ("PacketSize", "Size of packets generated",
UintegerValue (100),
MakeUintegerAccessor (&UdpEchoClient::m_size),
MakeUintegerChecker<uint32_t> ())
;
return tid;
}
UdpEchoClient::UdpEchoClient ()
{
NS_LOG_FUNCTION_NOARGS ();
m_sent = 0;
m_socket = 0;
m_sendEvent = EventId ();
}
UdpEchoClient::~UdpEchoClient()
{
NS_LOG_FUNCTION_NOARGS ();
}
void
UdpEchoClient::SetRemote (Ipv4Address ip, uint16_t port)
{
m_peerAddress = ip;
m_peerPort = port;
}
void
UdpEchoClient::DoDispose (void)
{
NS_LOG_FUNCTION_NOARGS ();
Application::DoDispose ();
}
void
UdpEchoClient::StartApplication (void)
{
NS_LOG_FUNCTION_NOARGS ();
if (!m_socket)
{
TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
m_socket = Socket::CreateSocket (GetNode(), tid);
m_socket->Bind ();
m_socket->Connect (InetSocketAddress (m_peerAddress, m_peerPort));
}
m_socket->SetRecvCallback(MakeCallback(&UdpEchoClient::HandleRead, this));
ScheduleTransmit (Seconds(0.));
}
void
UdpEchoClient::StopApplication ()
{
NS_LOG_FUNCTION_NOARGS ();
if (!m_socket)
{
m_socket->SetRecvCallback(MakeNullCallback<void, Ptr<Socket> > ());
}
Simulator::Cancel(m_sendEvent);
}
void
UdpEchoClient::ScheduleTransmit (Time dt)
{
NS_LOG_FUNCTION_NOARGS ();
m_sendEvent = Simulator::Schedule(dt, &UdpEchoClient::Send, this);
}
void
UdpEchoClient::Send (void)
{
NS_LOG_FUNCTION_NOARGS ();
NS_ASSERT (m_sendEvent.IsExpired ());
Ptr<Packet> p = Create<Packet> (m_size);
m_socket->Send (p);
++m_sent;
NS_LOG_INFO ("Sent " << m_size << " bytes to " << m_peerAddress);
if (m_sent < m_count)
{
ScheduleTransmit (m_interval);
}
}
void
UdpEchoClient::HandleRead (Ptr<Socket> socket)
{
NS_LOG_FUNCTION (this << socket);
Ptr<Packet> packet;
while (packet = socket->Recv ())
{
SocketRxAddressTag tag;
bool found = packet->PeekTag (tag);
NS_ASSERT (found);
Address from = tag.GetAddress ();
packet->RemoveTag (tag);
if (InetSocketAddress::IsMatchingType (from))
{
InetSocketAddress address = InetSocketAddress::ConvertFrom (from);
NS_LOG_INFO ("Received " << packet->GetSize() << " bytes from " <<
address.GetIpv4());
}
}
}
} // Namespace ns3