A Discrete-Event Network Simulator
API
dynamic-queue-limits.h
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2016 Universita' degli Studi di Napoli Federico II
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 * Authors: Pasquale Imputato <p.imputato@gmail.com>
19 * Stefano Avallone <stefano.avallone@unina.it>
20 *
21 * This code is a port of the dynamic queue limits library implemented
22 * in the Linux kernel by
23 * Author: Tom Herbert <therbert@google.com>
24 */
25
26#ifndef DYNAMIC_QUEUE_LIMITS_H
27#define DYNAMIC_QUEUE_LIMITS_H
28
29#include "queue-limits.h"
30#include "ns3/nstime.h"
31#include "ns3/traced-value.h"
32#include <limits.h>
33
34namespace ns3 {
35
64public:
69 static TypeId GetTypeId (void);
70
72 virtual ~DynamicQueueLimits ();
73
74 virtual void Reset ();
75 virtual void Completed (uint32_t count);
76 virtual int32_t Available () const;
77 virtual void Queued (uint32_t count);
78
79private:
88
89 // Fields accessed in enqueue path
93
94 // Fields accessed only by completion path
97
101
104
105 // Configuration
109};
110
111} // namespace ns3
112
113#endif /* DYNAMIC_QUEUE_LIMITS_H */
#define max(a, b)
Definition: 80211b.c:43
DynamicQueueLimits would be used in conjunction with a producer/consumer type queue (possibly a netde...
uint32_t m_adjLimit
limit + num_completed
uint32_t m_numCompleted
Total ever completed.
static TypeId GetTypeId(void)
Get the type ID.
Time m_slackStartTime
Time slacks seen.
uint32_t m_numQueued
Total ever queued.
uint32_t m_prevOvlimit
Previous over limit.
uint32_t m_minLimit
Minimum limit.
Time m_slackHoldTime
Time to measure slack.
virtual int32_t Available() const
Available is called from NotifyTransmittedBytes to calculate the number of bytes that can be passed a...
uint32_t m_prevNumQueued
Previous queue total.
virtual void Queued(uint32_t count)
Record the number of bytes queued.
virtual void Reset()
Reset queue limits state.
uint32_t m_lastObjCnt
Count at last queuing.
uint32_t m_prevLastObjCnt
Previous queuing cnt.
int32_t Posdiff(int32_t a, int32_t b)
Calculates the difference between the two operators and returns the number if positive,...
uint32_t m_lowestSlack
Lowest slack found.
TracedValue< uint32_t > m_limit
Current limit.
uint32_t m_maxLimit
Max limit.
virtual void Completed(uint32_t count)
Record number of completed bytes and recalculate the limit.
Abstract base class for NetDevice queue length controller.
Definition: queue-limits.h:43
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:104
a unique identifier for an interface.
Definition: type-id.h:59
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1245
Every class exported by the ns3 library is enclosed in the ns3 namespace.