A Discrete-Event Network Simulator
API
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tcp-tx-item.cc
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1/*
2 * Copyright (c) 2018 Natale Patriciello <natale.patriciello@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
18#include "tcp-tx-item.h"
19
20namespace ns3
21{
22
23void
24TcpTxItem::Print(std::ostream& os, Time::Unit unit /* = Time::S */) const
25{
26 bool comma = false;
27 os << "[" << m_startSeq << ";" << m_startSeq + GetSeqSize() << "|" << GetSeqSize() << "]";
28
29 if (m_lost)
30 {
31 os << "[lost]";
32 comma = true;
33 }
34 if (m_retrans)
35 {
36 if (comma)
37 {
38 os << ",";
39 }
40
41 os << "[retrans]";
42 comma = true;
43 }
44 if (m_sacked)
45 {
46 if (comma)
47 {
48 os << ",";
49 }
50 os << "[sacked]";
51 comma = true;
52 }
53 if (comma)
54 {
55 os << ",";
56 }
57 os << "[" << m_lastSent.As(unit) << "]";
58}
59
62{
63 return m_packet && m_packet->GetSize() > 0 ? m_packet->GetSize() : 1;
64}
65
66bool
68{
69 return m_sacked;
70}
71
72bool
74{
75 return m_retrans;
76}
77
80{
81 return m_packet->Copy();
82}
83
86{
87 return m_packet;
88}
89
90const Time&
92{
93 return m_lastSent;
94}
95
98{
99 return m_rateInfo;
100}
101
102} // namespace ns3
uint32_t GetSize() const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:861
Ptr< Packet > Copy() const
performs a COW copy of the packet.
Definition: packet.cc:131
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:77
bool m_sacked
Indicates if the segment has been SACKed.
Definition: tcp-tx-item.h:116
bool m_retrans
Indicates if the segment is retransmitted.
Definition: tcp-tx-item.h:104
SequenceNumber32 m_startSeq
Sequence number of the item (if transmitted)
Definition: tcp-tx-item.h:111
bool IsSacked() const
Is the item sacked?
Definition: tcp-tx-item.cc:67
Time m_lastSent
Timestamp of the time at which the segment has been sent last time.
Definition: tcp-tx-item.h:114
RateInformation m_rateInfo
Rate information of the item.
Definition: tcp-tx-item.h:118
Ptr< const Packet > GetPacket() const
Get the Packet underlying this item.
Definition: tcp-tx-item.cc:85
uint32_t GetSeqSize() const
Get the size in the sequence number space.
Definition: tcp-tx-item.cc:61
Ptr< Packet > GetPacketCopy() const
Get a copy of the Packet underlying this item.
Definition: tcp-tx-item.cc:79
const Time & GetLastSent() const
Get a reference to the time the packet was sent for the last time.
Definition: tcp-tx-item.cc:91
RateInformation & GetRateInformation()
Get (to modify) the Rate Information of this item.
Definition: tcp-tx-item.cc:97
bool m_lost
Indicates if the segment has been lost (RTO)
Definition: tcp-tx-item.h:113
Ptr< Packet > m_packet
Application packet (can be null)
Definition: tcp-tx-item.h:112
bool IsRetrans() const
Is the item retransmitted?
Definition: tcp-tx-item.cc:73
void Print(std::ostream &os, Time::Unit unit=Time::S) const
Print the time.
Definition: tcp-tx-item.cc:24
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:105
TimeWithUnit As(const Unit unit=Time::AUTO) const
Attach a unit to a Time, to facilitate output in a specific unit.
Definition: time.cc:415
Unit
The unit to use to interpret a number representing time.
Definition: nstime.h:111
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Various rate-related information, can be accessed by TcpRateOps.
Definition: tcp-tx-item.h:88