/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2007 University of Washington
* All rights reserved.
*
* 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/debug.h"
#include "ns3/composite-trace-resolver.h"
#include "queue.h"
NS_DEBUG_COMPONENT_DEFINE ("Queue");
namespace ns3 {
Queue::Queue() :
m_nBytes(0),
m_nTotalReceivedBytes(0),
m_nPackets(0),
m_nTotalReceivedPackets(0),
m_nTotalDroppedBytes(0),
m_nTotalDroppedPackets(0)
{
NS_DEBUG("Queue::Queue ()");
}
Queue::~Queue()
{
NS_DEBUG("Queue::~Queue ()");
}
TraceResolver *
Queue::CreateTraceResolver (TraceContext const &context)
{
CompositeTraceResolver *resolver = new CompositeTraceResolver (context);
resolver->Add ("enqueue", m_traceEnqueue, Queue::ENQUEUE);
resolver->Add ("dequeue", m_traceDequeue, Queue::DEQUEUE);
resolver->Add ("drop", m_traceDrop, Queue::DROP);
return resolver;
}
bool
Queue::Enqueue (const Packet& p)
{
NS_DEBUG("Queue::Enqueue (" << &p << ")");
NS_DEBUG("Queue::Enqueue (): m_traceEnqueue (p)");
m_traceEnqueue (p);
bool retval = DoEnqueue (p);
if (retval)
{
m_nBytes += p.GetSize ();
m_nPackets++;
}
return retval;
}
bool
Queue::Dequeue (Packet &p)
{
NS_DEBUG("Queue::Dequeue (" << &p << ")");
bool retval = DoDequeue (p);
if (retval)
{
m_nBytes -= p.GetSize ();
m_nPackets--;
NS_ASSERT (m_nBytes >= 0);
NS_ASSERT (m_nPackets >= 0);
NS_DEBUG("Queue::Dequeue (): m_traceDequeue (p)");
const Packet packet = p;
m_traceDequeue (packet);
}
return retval;
}
void
Queue::DequeueAll (void)
{
NS_DEBUG("Queue::DequeueAll ()");
NS_ASSERT (!"Don't know what to do with dequeued packets!");
}
uint32_t
Queue::GetNPackets (void)
{
NS_DEBUG("Queue::GetNPackets () <= " << m_nPackets);
return m_nPackets;
}
uint32_t
Queue::GetNBytes (void)
{
NS_DEBUG("Queue::GetNBytes () <= " << m_nBytes);
return m_nBytes;
}
bool
Queue::IsEmpty (void)
{
NS_DEBUG("Queue::IsEmpty () <= " << (m_nPackets == 0));
return m_nPackets == 0;
}
uint32_t
Queue::GetTotalReceivedBytes (void)
{
NS_DEBUG("Queue::GetTotalReceivedBytes () <= " << m_nTotalReceivedBytes);
return m_nTotalReceivedBytes;
}
uint32_t
Queue::GetTotalReceivedPackets (void)
{
NS_DEBUG("Queue::GetTotalReceivedPackets () <= " << m_nTotalReceivedPackets);
return m_nTotalReceivedPackets;
}
uint32_t
Queue:: GetTotalDroppedBytes (void)
{
NS_DEBUG(
"Queue::GetTotalDroppedBytes () <= " << m_nTotalDroppedBytes
);
return m_nTotalDroppedBytes;
}
uint32_t
Queue::GetTotalDroppedPackets (void)
{
NS_DEBUG(
"Queue::GetTotalDroppedPackets () <= " << m_nTotalDroppedPackets);
return m_nTotalDroppedPackets;
}
void
Queue::ResetStatistics (void)
{
NS_DEBUG("Queue::ResetStatistics ()");
m_nTotalReceivedBytes = 0;
m_nTotalReceivedPackets = 0;
m_nTotalDroppedBytes = 0;
m_nTotalDroppedPackets = 0;
}
void
Queue::Drop (const Packet& p)
{
NS_DEBUG("Queue::Drop (" << &p << ")");
m_nTotalDroppedPackets++;
m_nTotalDroppedBytes += p.GetSize ();
NS_DEBUG("Queue::Drop (): m_traceDrop (p)");
m_traceDrop (p);
}
}; // namespace ns3