A Discrete-Event Network Simulator
API
seq-ts-echo-header.cc
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1/*
2 * Copyright (c) 2009 INRIA
3 * Copyright (c) 2016 Universita' di Firenze (added echo fields)
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: Tommaso Pecorella <tommaso.pecorella@unifi.it>
19 */
20
21#include "seq-ts-echo-header.h"
22
23#include "ns3/assert.h"
24#include "ns3/header.h"
25#include "ns3/log.h"
26#include "ns3/simulator.h"
27
28namespace ns3
29{
30
31NS_LOG_COMPONENT_DEFINE("SeqTsEchoHeader");
32
33NS_OBJECT_ENSURE_REGISTERED(SeqTsEchoHeader);
34
36 : m_seq(0),
37 m_tsValue(Simulator::Now()),
38 m_tsEchoReply(Seconds(0))
39{
40 NS_LOG_FUNCTION(this);
41}
42
43void
45{
46 NS_LOG_FUNCTION(this << seq);
47 m_seq = seq;
48}
49
52{
53 NS_LOG_FUNCTION(this);
54 return m_seq;
55}
56
57void
59{
60 NS_LOG_FUNCTION(this << ts);
61 m_tsValue = ts;
62}
63
64Time
66{
67 NS_LOG_FUNCTION(this);
68 return m_tsValue;
69}
70
71void
73{
74 NS_LOG_FUNCTION(this << ts);
75 m_tsEchoReply = ts;
76}
77
78Time
80{
81 NS_LOG_FUNCTION(this);
82 return m_tsEchoReply;
83}
84
87{
88 static TypeId tid = TypeId("ns3::SeqTsEchoHeader")
90 .SetGroupName("Applications")
91 .AddConstructor<SeqTsEchoHeader>();
92 return tid;
93}
94
97{
98 return GetTypeId();
99}
100
101void
102SeqTsEchoHeader::Print(std::ostream& os) const
103{
104 NS_LOG_FUNCTION(this << &os);
105 os << "(seq=" << m_seq << " Tx time=" << m_tsValue.As(Time::S)
106 << " Rx time=" << m_tsEchoReply.As(Time::S) << ")";
107}
108
111{
112 NS_LOG_FUNCTION(this);
113 return 4 + 8 + 8;
114}
115
116void
118{
119 NS_LOG_FUNCTION(this << &start);
124}
125
128{
129 NS_LOG_FUNCTION(this << &start);
131 m_seq = i.ReadNtohU32();
132 m_tsValue = TimeStep(i.ReadNtohU64());
133 m_tsEchoReply = TimeStep(i.ReadNtohU64());
134 return GetSerializedSize();
135}
136
137} // namespace ns3
iterator in a Buffer instance
Definition: buffer.h:100
void WriteHtonU64(uint64_t data)
Definition: buffer.cc:937
uint64_t ReadNtohU64()
Definition: buffer.cc:1044
uint32_t ReadNtohU32()
Definition: buffer.h:978
void WriteHtonU32(uint32_t data)
Definition: buffer.h:933
Protocol header serialization and deserialization.
Definition: header.h:44
Packet header to carry sequence number and two timestamps.
Time m_tsEchoReply
Receiver's timestamp.
Time m_tsValue
Sender's timestamp.
void SetTsValue(Time ts)
Set the sender's time value.
uint32_t GetSerializedSize() const override
TypeId GetInstanceTypeId() const override
Get the most derived TypeId for this Object.
uint32_t GetSeq() const
uint32_t m_seq
Sequence number.
void SetSeq(uint32_t seq)
void Serialize(Buffer::Iterator start) const override
static TypeId GetTypeId()
Get the type ID.
uint32_t Deserialize(Buffer::Iterator start) override
void SetTsEchoReply(Time ts)
Upon SeqTsEchoHeader reception, the host answers via echoing back the received timestamp.
void Print(std::ostream &os) const override
Control the scheduling of simulation events.
Definition: simulator.h:68
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:417
@ S
second
Definition: nstime.h:116
int64_t GetTimeStep() const
Get the raw time value, in the current resolution unit.
Definition: nstime.h:444
a unique identifier for an interface.
Definition: type-id.h:60
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:935
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:46
Time Now()
create an ns3::Time instance which contains the current simulation time.
Definition: simulator.cc:296
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1336
Every class exported by the ns3 library is enclosed in the ns3 namespace.
def start()
Definition: core.py:1864