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 
26 namespace ns3 {
27 
28 class Packet;
29 class WifiMacHeader;
30 class QueueItem;
32 
33 typedef std::pair<Mac48Address, uint8_t> WifiAddressTidPair;
34 
39 {
40  std::size_t operator() (const WifiAddressTidPair& addressTidPair) const;
41 };
42 
47 {
48  std::size_t operator() (const Mac48Address& address) const;
49 };
50 
57 enum AcIndex
58 {
60  AC_BE = 0,
62  AC_BK = 1,
64  AC_VI = 2,
66  AC_VO = 3,
70 };
71 
80 AcIndex QosUtilsMapTidToAc (uint8_t tid);
81 
92 uint8_t QosUtilsGetTidForPacket (Ptr<const Packet> packet);
93 
105 uint32_t QosUtilsMapSeqControlToUniqueInteger (uint16_t seqControl, uint16_t endSequence);
106 
144 bool QosUtilsIsOldPacket (uint16_t startingSeq, uint16_t seqNumber);
145 
155 uint8_t GetTid (Ptr<const Packet> packet, const WifiMacHeader hdr);
156 
200 uint8_t SelectQueueByDSField (Ptr<QueueItem> item);
201 
202 } //namespace ns3
203 
204 #endif /* QOS_UTILS_H */
std::pair< Mac48Address, uint8_t > WifiAddressTidPair
(MAC address, TID) pair
Definition: qos-utils.h:31
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:105
Video.
Definition: qos-utils.h:64
Voice.
Definition: qos-utils.h:66
Best Effort.
Definition: qos-utils.h:60
uint8_t QosUtilsGetTidForPacket(Ptr< const Packet > packet)
If a QoS tag is attached to the packet, returns a value < 8.
Definition: qos-utils.cc:79
Background.
Definition: qos-utils.h:62
Function object to compute the hash of a (MAC address, TID) pair.
Definition: qos-utils.h:38
AcIndex QosUtilsMapTidToAc(uint8_t tid)
Maps TID (Traffic ID) to Access classes.
Definition: qos-utils.cc:53
Every class exported by the ns3 library is enclosed in the ns3 namespace.
address
Definition: first.py:44
uint8_t SelectQueueByDSField(Ptr< QueueItem > item)
Determine the TX queue for a given packet.
Definition: qos-utils.cc:185
an EUI-48 address
Definition: mac48-address.h:43
uint8_t GetTid(Ptr< const Packet > packet, const WifiMacHeader hdr)
Extraction operator for TypeId.
Definition: qos-utils.cc:120
Function object to compute the hash of a MAC address.
Definition: qos-utils.h:46
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:94
std::size_t operator()(const WifiAddressTidPair &addressTidPair) const
Definition: qos-utils.cc:32
Total number of ACs.
Definition: qos-utils.h:68
std::size_t operator()(const Mac48Address &address) const
Definition: qos-utils.cc:43
AcIndex
This enumeration defines the Access Categories as an enumeration with values corresponding to the AC ...
Definition: qos-utils.h:57