A Discrete-Event Network Simulator
API
tcp-tx-item.cc
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2018 Natale Patriciello <natale.patriciello@gmail.com>
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 */
19#include "tcp-tx-item.h"
20
21namespace ns3 {
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 () << "|"
28 << GetSeqSize () << "]";
29
30 if (m_lost)
31 {
32 os << "[lost]";
33 comma = true;
34 }
35 if (m_retrans)
36 {
37 if (comma)
38 {
39 os << ",";
40 }
41
42 os << "[retrans]";
43 comma = true;
44 }
45 if (m_sacked)
46 {
47 if (comma)
48 {
49 os << ",";
50 }
51 os << "[sacked]";
52 comma = true;
53 }
54 if (comma)
55 {
56 os << ",";
57 }
58 os << "[" << m_lastSent.As (unit) << "]";
59}
60
63{
64 return m_packet && m_packet->GetSize () > 0 ? m_packet->GetSize () : 1;
65}
66
67bool
69{
70 return m_sacked;
71}
72
73bool
75{
76 return m_retrans;
77}
78
81{
82 return m_packet->Copy ();
83}
84
87{
88 return m_packet;
89}
90
91const Time &
93{
94 return m_lastSent;
95}
96
99{
100 return m_rateInfo;
101}
102
103
104} // namespace ns3
Ptr< Packet > Copy(void) const
performs a COW copy of the packet.
Definition: packet.cc:121
uint32_t GetSize(void) const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:856
bool m_sacked
Indicates if the segment has been SACKed.
Definition: tcp-tx-item.h:113
RateInformation & GetRateInformation(void)
Get (to modify) the Rate Information of this item.
Definition: tcp-tx-item.cc:98
bool m_retrans
Indicates if the segment is retransmitted.
Definition: tcp-tx-item.h:102
SequenceNumber32 m_startSeq
Sequence number of the item (if transmitted)
Definition: tcp-tx-item.h:109
Time m_lastSent
Timestamp of the time at which the segment has been sent last time.
Definition: tcp-tx-item.h:112
RateInformation m_rateInfo
Rate information of the item.
Definition: tcp-tx-item.h:115
uint32_t GetSeqSize(void) const
Get the size in the sequence number space.
Definition: tcp-tx-item.cc:62
bool IsRetrans(void) const
Is the item retransmitted?
Definition: tcp-tx-item.cc:74
bool IsSacked(void) const
Is the item sacked?
Definition: tcp-tx-item.cc:68
const Time & GetLastSent(void) const
Get a reference to the time the packet was sent for the last time.
Definition: tcp-tx-item.cc:92
Ptr< const Packet > GetPacket(void) const
Get the Packet underlying this item.
Definition: tcp-tx-item.cc:86
Ptr< Packet > GetPacketCopy(void) const
Get a copy of the Packet underlying this item.
Definition: tcp-tx-item.cc:80
bool m_lost
Indicates if the segment has been lost (RTO)
Definition: tcp-tx-item.h:111
Ptr< Packet > m_packet
Application packet (can be null)
Definition: tcp-tx-item.h:110
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:104
Unit
The unit to use to interpret a number representing time.
Definition: nstime.h:110
TimeWithUnit As(const enum Unit unit=Time::AUTO) const
Attach a unit to a Time, to facilitate output in a specific unit.
Definition: time.cc:418
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