A Discrete-Event Network Simulator
API
wifi-mac-queue-item.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2005, 2009 INRIA
4  * Copyright (c) 2009 MIRKO BANCHI
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation;
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  *
19  * Authors: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
20  * Mirko Banchi <mk.banchi@gmail.com>
21  * Stefano Avallone <stavallo@unina.it>
22  */
23 
24 #include "ns3/simulator.h"
25 #include "ns3/packet.h"
26 #include "ns3/log.h"
27 #include "wifi-mac-queue-item.h"
28 #include "wifi-mac-trailer.h"
29 
30 namespace ns3 {
31 
32 NS_LOG_COMPONENT_DEFINE ("WifiMacQueueItem");
33 
35  : WifiMacQueueItem (p, header, Simulator::Now ())
36 {
37 }
38 
40  : m_packet (p),
41  m_header (header),
42  m_tstamp (tstamp)
43 {
44 }
45 
47 {
48 }
49 
52 {
53  return m_packet;
54 }
55 
56 const WifiMacHeader&
58 {
59  return m_header;
60 }
61 
64 {
65  return m_header;
66 }
67 
70 {
71  return m_header.GetAddr1 ();
72 }
73 
74 Time
76 {
77  return m_tstamp;
78 }
79 
80 uint32_t
82 {
84 }
85 
86 void
87 WifiMacQueueItem::Print (std::ostream& os) const
88 {
89  os << "size=" << m_packet->GetSize ()
90  << ", to=" << m_header.GetAddr1 ()
91  << ", seqN=" << m_header.GetSequenceNumber ()
92  << ", lifetime=" << (Simulator::Now () - m_tstamp).GetMicroSeconds () << "us";
93  if (m_header.IsQosData ())
94  {
95  os << ", tid=" << +m_header.GetQosTid ();
96  if (m_header.IsQosNoAck ())
97  {
98  os << ", ack=NoAck";
99  }
100  else if (m_header.IsQosAck ())
101  {
102  os << ", ack=NormalAck";
103  }
104  else if (m_header.IsQosBlockAck ())
105  {
106  os << ", ack=BlockAck";
107  }
108  }
109 }
110 
111 std::ostream & operator << (std::ostream &os, const WifiMacQueueItem &item)
112 {
113  item.Print (os);
114  return os;
115 }
116 
117 } //namespace ns3
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:102
Control the scheduling of simulation events.
Definition: simulator.h:68
uint32_t GetSize(void) const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:852
virtual void Print(std::ostream &os) const
Print the item contents.
uint32_t GetSize(void) const
Return the size of the packet stored by this item, including header size and trailer size...
Mac48Address GetAddr1(void) const
Return the address in the Address 1 field.
Time GetTimeStamp(void) const
Get the timestamp included in this item.
static const uint16_t WIFI_MAC_FCS_LENGTH
The length in octects of the IEEE 802.11 MAC FCS field.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:204
Mac48Address GetDestinationAddress(void) const
Return the destination address present in the header.
Ptr< const Packet > m_packet
The packet contained in this queue item.
WifiMacQueueItem stores (const) packets along with their Wifi MAC headers and the time when they were...
const WifiMacHeader & GetHeader(void) const
Get the header stored in this item.
Time m_tstamp
timestamp when the packet arrived at the queue
bool IsQosNoAck(void) const
Return if the QoS ACK policy is No ACK.
uint8_t GetQosTid(void) const
Return the Traffic ID of a QoS header.
WifiMacHeader m_header
Wifi MAC header associated with the packet.
bool IsQosAck(void) const
Return if the QoS ACK policy is Normal ACK.
std::ostream & operator<<(std::ostream &os, const Angles &a)
print a struct Angles to output
Definition: angles.cc:42
Ptr< const Packet > GetPacket(void) const
Get the packet stored in this item.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
uint16_t GetSequenceNumber(void) const
Return the sequence number of the header.
WifiMacQueueItem(Ptr< const Packet > p, const WifiMacHeader &header)
Create a Wifi MAC queue item containing a packet and a Wifi MAC header.
an EUI-48 address
Definition: mac48-address.h:43
static Time Now(void)
Return the current simulation virtual time.
Definition: simulator.cc:193
bool IsQosBlockAck(void) const
Return if the QoS ACK policy is Block ACK.
uint32_t GetSerializedSize(void) const
bool IsQosData(void) const
Return true if the Type is DATA and Subtype is one of the possible values for QoS DATA...
Time Now(void)
create an ns3::Time instance which contains the current simulation time.
Definition: simulator.cc:309
Implements the IEEE 802.11 MAC header.