author | Craig Dowell <craigdo@ee.washington.edu> |
Thu, 13 Sep 2007 21:36:32 -0700 | |
changeset 1505 | 286ec92f4113 |
parent 1308 | 5c5937a4150d |
child 1828 | 6ab68edddf45 |
child 1866 | e7dbcc4df546 |
permissions | -rw-r--r-- |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2007 University of Washington |
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* All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "ns3/log.h" |
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#include "drop-tail-queue.h" |
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NS_LOG_COMPONENT_DEFINE ("DropTailQueue"); |
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namespace ns3 { |
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const ClassId DropTailQueue::cid = |
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MakeClassId<DropTailQueue> ("DropTailQueue", Queue::iid); |
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DropTailQueue::DropTailQueue () : |
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Queue (), |
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m_packets (), |
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m_maxPackets(DTQ_NPACKETS_MAX_DEFAULT) |
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{ |
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NS_LOG_FUNCTION; |
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} |
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DropTailQueue::~DropTailQueue () |
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{ |
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NS_LOG_FUNCTION; |
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} |
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void |
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DropTailQueue::SetMaxPackets (uint32_t npackets) |
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{ |
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NS_LOG_FUNCTION; |
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NS_LOG_PARAM ("(" << npackets << ")"); |
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m_maxPackets = npackets; |
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} |
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uint32_t |
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DropTailQueue::GetMaxPackets (void) |
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{ |
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NS_LOG_FUNCTION; |
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NS_LOG_LOGIC ("returns " << m_maxPackets); |
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return m_maxPackets; |
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} |
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bool |
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DropTailQueue::DoEnqueue (const Packet& p) |
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{ |
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NS_LOG_FUNCTION; |
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NS_LOG_PARAM ("(" << &p << ")"); |
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if (m_packets.size () >= m_maxPackets) |
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{ |
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NS_LOG_LOGIC ("Queue full -- droppping pkt"); |
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Drop (p); |
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return false; |
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} |
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m_packets.push(p); |
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return true; |
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} |
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bool |
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DropTailQueue::DoDequeue (Packet& p) |
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{ |
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NS_LOG_FUNCTION; |
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NS_LOG_PARAM ("(" << &p << ")"); |
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if (m_packets.empty()) |
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NS_LOG_LOGIC ("Queue empty"); |
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return false; |
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} |
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p = m_packets.front (); |
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m_packets.pop (); |
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NS_LOG_LOGIC ("Popped " << &p); |
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return true; |
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} |
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bool |
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DropTailQueue::DoPeek (Packet& p) |
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{ |
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NS_LOG_FUNCTION; |
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NS_LOG_PARAM ("(" << &p << ")"); |
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if (m_packets.empty()) |
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{ |
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NS_LOG_LOGIC ("Queue empty"); |
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return false; |
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} |
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p = m_packets.front (); |
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return true; |
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} |
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}; // namespace ns3 |