A Discrete-Event Network Simulator
API
qos-utils.h
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2009 MIRKO BANCHI
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: Mirko Banchi <mk.banchi@gmail.com>
19 */
20
21#ifndef QOS_UTILS_H
22#define QOS_UTILS_H
23
24#include "ns3/ptr.h"
25#include <map>
26
27namespace ns3 {
28
29class Packet;
30class WifiMacHeader;
31class QueueItem;
32class Mac48Address;
33
34typedef std::pair<Mac48Address, uint8_t> WifiAddressTidPair;
35
40{
47 std::size_t operator() (const WifiAddressTidPair& addressTidPair) const;
48};
49
54{
61 std::size_t operator() (const Mac48Address& address) const;
62};
63
70enum AcIndex : uint8_t
71{
73 AC_BE = 0,
75 AC_BK = 1,
77 AC_VI = 2,
79 AC_VO = 3,
86};
87
92class WifiAc
93{
94public:
101 WifiAc (uint8_t lowTid, uint8_t highTid);
107 uint8_t GetLowTid (void) const;
113 uint8_t GetHighTid (void) const;
120 uint8_t GetOtherTid (uint8_t tid) const;
121
122private:
123 uint8_t m_lowTid;
124 uint8_t m_highTid;
125};
126
136bool operator> (enum AcIndex left, enum AcIndex right);
137
147bool operator>= (enum AcIndex left, enum AcIndex right);
148
158bool operator< (enum AcIndex left, enum AcIndex right);
159
169bool operator<= (enum AcIndex left, enum AcIndex right);
170
175extern const std::map<AcIndex, WifiAc> wifiAcList;
176
185AcIndex QosUtilsMapTidToAc (uint8_t tid);
186
198
210uint32_t QosUtilsMapSeqControlToUniqueInteger (uint16_t seqControl, uint16_t endSequence);
211
249bool QosUtilsIsOldPacket (uint16_t startingSeq, uint16_t seqNumber);
250
259uint8_t GetTid (Ptr<const Packet> packet, const WifiMacHeader hdr);
260
305
306} //namespace ns3
307
308#endif /* QOS_UTILS_H */
an EUI-48 address
Definition: mac48-address.h:44
This class stores the pair of TIDs of an Access Category.
Definition: qos-utils.h:93
WifiAc(uint8_t lowTid, uint8_t highTid)
Constructor.
Definition: qos-utils.cc:52
uint8_t GetOtherTid(uint8_t tid) const
Given a TID belonging to this Access Category, get the other TID of this AC.
Definition: qos-utils.cc:71
uint8_t GetLowTid(void) const
Get the TID with lower priority.
Definition: qos-utils.cc:59
uint8_t m_highTid
the TID with higher priority
Definition: qos-utils.h:124
uint8_t GetHighTid(void) const
Get the TID with higher priority.
Definition: qos-utils.cc:65
uint8_t m_lowTid
the TID with lower priority
Definition: qos-utils.h:123
Implements the IEEE 802.11 MAC header.
bool operator>=(const int64x64_t &lhs, const int64x64_t &rhs)
Greater or equal operator.
Definition: int64x64.h:166
bool operator<=(const int64x64_t &lhs, const int64x64_t &rhs)
Less or equal operator.
Definition: int64x64.h:155
bool operator>(const Length &left, const Length &right)
Check if left has a value greater than right.
Definition: length.cc:413
AcIndex QosUtilsMapTidToAc(uint8_t tid)
Maps TID (Traffic ID) to Access classes.
Definition: qos-utils.cc:126
bool QosUtilsIsOldPacket(uint16_t startingSeq, uint16_t seqNumber)
This function checks if packet with sequence number seqNumber is an "old" packet.
Definition: qos-utils.cc:178
uint32_t QosUtilsMapSeqControlToUniqueInteger(uint16_t seqControl, uint16_t endSequence)
Next function is useful to correctly sort buffered packets under block ack.
Definition: qos-utils.cc:167
uint8_t GetTid(Ptr< const Packet > packet, const WifiMacHeader hdr)
This function is useful to get traffic id of different packet types.
Definition: qos-utils.cc:187
uint8_t QosUtilsGetTidForPacket(Ptr< const Packet > packet)
If a QoS tag is attached to the packet, returns a value < 8.
Definition: qos-utils.cc:152
AcIndex
This enumeration defines the Access Categories as an enumeration with values corresponding to the AC ...
Definition: qos-utils.h:71
uint8_t SelectQueueByDSField(Ptr< QueueItem > item)
Determine the TX queue for a given packet.
Definition: qos-utils.cc:253
@ AC_BE_NQOS
Non-QoS.
Definition: qos-utils.h:81
@ AC_BE
Best Effort.
Definition: qos-utils.h:73
@ AC_VO
Voice.
Definition: qos-utils.h:79
@ AC_VI
Video.
Definition: qos-utils.h:77
@ AC_BK
Background.
Definition: qos-utils.h:75
@ AC_UNDEF
Total number of ACs.
Definition: qos-utils.h:85
@ AC_BEACON
Beacon queue.
Definition: qos-utils.h:83
address
Definition: first.py:44
Every class exported by the ns3 library is enclosed in the ns3 namespace.
bool operator<(const EventId &a, const EventId &b)
Definition: event-id.h:176
const std::map< AcIndex, WifiAc > wifiAcList
Map containing the four ACs in increasing order of priority (according to Table 10-1 "UP-to-AC Mappin...
Definition: qos-utils.cc:120
std::pair< Mac48Address, uint8_t > WifiAddressTidPair
(MAC address, TID) pair
Definition: qos-utils.h:32
Function object to compute the hash of a MAC address.
Definition: qos-utils.h:54
std::size_t operator()(const Mac48Address &address) const
Functional operator for MAC address hash computation.
Definition: qos-utils.cc:43
Function object to compute the hash of a (MAC address, TID) pair.
Definition: qos-utils.h:40
std::size_t operator()(const WifiAddressTidPair &addressTidPair) const
Functional operator for (MAC address, TID) hash computation.
Definition: qos-utils.cc:32