author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Wed, 12 Sep 2007 11:22:32 +0200 | |
changeset 1493 | 149976da3ab6 |
parent 1475 | 725c9adf19d2 |
parent 1376 | ad7e61edfb9d |
child 1865 | 829dc1815014 |
permissions | -rw-r--r-- |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2005,2006 INRIA |
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* All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
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*/ |
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#include "packet.h" |
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#include "packet-printer.h" |
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#include "ns3/assert.h" |
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namespace ns3 { |
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uint32_t Packet::m_globalUid = 0; |
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Packet::Packet () |
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: m_buffer (), |
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m_metadata (m_globalUid, 0) |
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{ |
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m_globalUid++; |
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} |
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Packet::Packet (uint32_t size) |
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: m_buffer (size), |
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m_metadata (m_globalUid, size) |
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{ |
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m_globalUid++; |
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} |
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Packet::Packet (uint8_t const*buffer, uint32_t size) |
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: m_buffer (), |
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m_metadata (m_globalUid, size) |
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{ |
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m_globalUid++; |
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m_buffer.AddAtStart (size); |
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Buffer::Iterator i = m_buffer.Begin (); |
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i.Write (buffer, size); |
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} |
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Packet::Packet (Buffer buffer, Tags tags, PacketMetadata metadata) |
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: m_buffer (buffer), |
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m_tags (tags), |
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m_metadata (metadata) |
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{} |
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Packet |
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Packet::CreateFragment (uint32_t start, uint32_t length) const |
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{ |
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Buffer buffer = m_buffer.CreateFragment (start, length); |
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NS_ASSERT (m_buffer.GetSize () >= start + length); |
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uint32_t end = m_buffer.GetSize () - (start + length); |
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PacketMetadata metadata = m_metadata.CreateFragment (start, end); |
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return Packet (buffer, m_tags, metadata); |
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} |
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uint32_t |
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Packet::GetSize (void) const |
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{ |
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return m_buffer.GetSize (); |
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} |
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void |
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Packet::AddAtEnd (Packet packet) |
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{ |
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Buffer src = packet.m_buffer.CreateFullCopy (); |
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Buffer dst = m_buffer.CreateFullCopy (); |
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dst.AddAtEnd (src.GetSize ()); |
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Buffer::Iterator destStart = dst.End (); |
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destStart.Prev (src.GetSize ()); |
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destStart.Write (src.Begin (), src.End ()); |
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m_buffer = dst; |
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/** |
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* XXX: we might need to merge the tag list of the |
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* other packet into the current packet. |
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*/ |
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m_metadata.AddAtEnd (packet.m_metadata); |
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} |
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void |
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Packet::AddPaddingAtEnd (uint32_t size) |
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{ |
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m_buffer.AddAtEnd (size); |
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m_metadata.AddPaddingAtEnd (size); |
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} |
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void |
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Packet::RemoveAtEnd (uint32_t size) |
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{ |
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m_buffer.RemoveAtEnd (size); |
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m_metadata.RemoveAtEnd (size); |
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} |
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void |
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Packet::RemoveAtStart (uint32_t size) |
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{ |
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m_buffer.RemoveAtStart (size); |
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m_metadata.RemoveAtStart (size); |
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} |
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void |
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Packet::RemoveAllTags (void) |
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{ |
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m_tags.RemoveAll (); |
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} |
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|
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|
116 |
uint8_t const * |
122
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diff
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|
117 |
Packet::PeekData (void) const |
90
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|
118 |
{ |
150
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|
119 |
return m_buffer.PeekData (); |
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|
120 |
} |
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diff
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|
121 |
|
91
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diff
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|
122 |
uint32_t |
122
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|
123 |
Packet::GetUid (void) const |
91
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|
124 |
{ |
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f882ee7eaccf
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|
125 |
return m_metadata.GetUid (); |
91
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|
126 |
} |
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|
127 |
|
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|
128 |
void |
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|
129 |
Packet::PrintTags (std::ostream &os) const |
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|
130 |
{ |
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|
131 |
m_tags.Print (os, " "); |
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|
132 |
} |
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|
133 |
|
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|
134 |
void |
463
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|
135 |
Packet::Print (std::ostream &os) const |
789
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|
136 |
{ |
1141
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|
137 |
m_metadata.Print (os, m_buffer, PacketPrinter ()); |
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|
138 |
} |
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changeset
|
139 |
|
806
0190f1b49dc8
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changeset
|
140 |
void |
0190f1b49dc8
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diff
changeset
|
141 |
Packet::Print (std::ostream &os, const PacketPrinter &printer) const |
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diff
changeset
|
142 |
{ |
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changeset
|
143 |
m_metadata.Print (os, m_buffer, printer); |
806
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changeset
|
144 |
} |
0190f1b49dc8
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diff
changeset
|
145 |
|
875
4ebee6ceebb5
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diff
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|
146 |
void |
4ebee6ceebb5
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|
147 |
Packet::EnableMetadata (void) |
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|
148 |
{ |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
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diff
changeset
|
149 |
PacketMetadata::Enable (); |
875
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|
150 |
} |
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diff
changeset
|
151 |
|
1138
27245d50e5e0
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|
152 |
Buffer |
1142
ff8f4a2efc6b
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|
153 |
Packet::Serialize (void) const |
1138
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|
154 |
{ |
1144
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|
155 |
Buffer buffer; |
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changeset
|
156 |
uint32_t reserve; |
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changeset
|
157 |
|
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|
158 |
// write metadata |
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changeset
|
159 |
reserve = m_metadata.GetSerializedSize (); |
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|
160 |
buffer.AddAtStart (reserve); |
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|
161 |
m_metadata.Serialize (buffer.Begin (), reserve); |
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changeset
|
162 |
|
6442e000420b
finish packet serialization/deserialization
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changeset
|
163 |
// write tags |
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|
164 |
reserve = m_tags.GetSerializedSize (); |
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|
165 |
buffer.AddAtStart (reserve); |
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changeset
|
166 |
m_tags.Serialize (buffer.Begin (), reserve); |
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changeset
|
167 |
|
6442e000420b
finish packet serialization/deserialization
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changeset
|
168 |
// aggregate byte buffer, metadata, and tags |
6442e000420b
finish packet serialization/deserialization
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changeset
|
169 |
Buffer tmp = m_buffer.CreateFullCopy (); |
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finish packet serialization/deserialization
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changeset
|
170 |
buffer.AddAtStart (tmp.GetSize ()); |
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finish packet serialization/deserialization
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changeset
|
171 |
buffer.Begin ().Write (tmp.Begin (), tmp.End ()); |
6442e000420b
finish packet serialization/deserialization
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changeset
|
172 |
|
1150
fcdda7ef3cee
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diff
changeset
|
173 |
// write byte buffer size. |
fcdda7ef3cee
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
174 |
buffer.AddAtStart (4); |
fcdda7ef3cee
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diff
changeset
|
175 |
buffer.Begin ().WriteU32 (m_buffer.GetSize ()); |
1144
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
176 |
|
1150
fcdda7ef3cee
fix packet serialization/deserialization
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diff
changeset
|
177 |
return buffer; |
1138
27245d50e5e0
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diff
changeset
|
178 |
} |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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diff
changeset
|
179 |
void |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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diff
changeset
|
180 |
Packet::Deserialize (Buffer buffer) |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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diff
changeset
|
181 |
{ |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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diff
changeset
|
182 |
Buffer buf = buffer; |
1144
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
183 |
// read size |
1138
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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parents:
896
diff
changeset
|
184 |
uint32_t packetSize = buf.Begin ().ReadU32 (); |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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parents:
896
diff
changeset
|
185 |
buf.RemoveAtStart (4); |
1144
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
186 |
|
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
187 |
// read buffer. |
1150
fcdda7ef3cee
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diff
changeset
|
188 |
buf.RemoveAtEnd (buf.GetSize () - packetSize); |
1138
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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diff
changeset
|
189 |
m_buffer = buf; |
1144
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
190 |
|
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
191 |
// read tags |
1138
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
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896
diff
changeset
|
192 |
buffer.RemoveAtStart (4 + packetSize); |
1144
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
193 |
uint32_t tagsDeserialized = m_tags.Deserialize (buffer.Begin ()); |
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
194 |
buffer.RemoveAtStart (tagsDeserialized); |
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
195 |
|
6442e000420b
finish packet serialization/deserialization
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diff
changeset
|
196 |
// read metadata |
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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1142
diff
changeset
|
197 |
uint32_t metadataDeserialized = |
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
1142
diff
changeset
|
198 |
m_metadata.Deserialize (buffer.Begin ()); |
6442e000420b
finish packet serialization/deserialization
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
1142
diff
changeset
|
199 |
buffer.RemoveAtStart (metadataDeserialized); |
1138
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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896
diff
changeset
|
200 |
} |
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
896
diff
changeset
|
201 |
|
1360
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
1241
diff
changeset
|
202 |
std::ostream& operator<< (std::ostream& os, const Packet &packet) |
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
203 |
{ |
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
1241
diff
changeset
|
204 |
packet.Print (os); |
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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1241
diff
changeset
|
205 |
return os; |
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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1241
diff
changeset
|
206 |
} |
7686e996bd1d
add operator << for Packet and TraceContext
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
1241
diff
changeset
|
207 |
|
1138
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
208 |
|
27245d50e5e0
use CreateFullCopy and implement Serialize/Deserialize
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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896
diff
changeset
|
209 |
} // namespace ns3 |
772
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
210 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
211 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
212 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
213 |
#ifdef RUN_SELF_TESTS |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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diff
changeset
|
214 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
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463
diff
changeset
|
215 |
#include "ns3/test.h" |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
216 |
#include <string> |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
217 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
218 |
namespace ns3 { |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
219 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
220 |
class PacketTest: public Test { |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
221 |
public: |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
222 |
virtual bool RunTests (void); |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
parents:
463
diff
changeset
|
223 |
PacketTest (); |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
224 |
}; |
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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463
diff
changeset
|
225 |
|
1e4fde8c1249
Add a Packet::AddAtEnd unit test.
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diff
changeset
|
226 |
|
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PacketTest::PacketTest () |
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: Test ("Packet") {} |
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bool |
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PacketTest::RunTests (void) |
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{ |
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bool ok = true; |
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Packet pkt1 (reinterpret_cast<const uint8_t*> ("hello"), 5); |
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Packet pkt2 (reinterpret_cast<const uint8_t*> (" world"), 6); |
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Packet packet; |
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packet.AddAtEnd (pkt1); |
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packet.AddAtEnd (pkt2); |
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if (packet.GetSize () != 11) |
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{ |
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Failure () << "expected size 11, got " << packet.GetSize () << std::endl; |
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ok = false; |
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} |
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std::string msg = std::string (reinterpret_cast<const char *>(packet.PeekData ()), |
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packet.GetSize ()); |
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if (msg != "hello world") |
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{ |
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Failure () << "expected 'hello world', got '" << msg << "'" << std::endl; |
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ok = false; |
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} |
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return ok; |
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} |
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static PacketTest gPacketTest; |
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}; // namespace ns3 |
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#endif /* RUN_SELF_TESTS */ |