author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Sat, 04 Aug 2007 14:10:49 +0200 | |
changeset 1143 | 7da9f7103447 |
parent 1141 | a75fc1741700 |
child 1151 | 527d7b7e25af |
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) 2006,2007 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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#ifndef PACKET_METADATA_H |
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#define PACKET_METADATA_H |
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#include <stdint.h> |
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#include <vector> |
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#include "ns3/callback.h" |
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#include "ns3/assert.h" |
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#include "packet-printer.h" |
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namespace ns3 { |
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class Chunk; |
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class Buffer; |
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/** |
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* \internal |
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* \brief handle packet metadata about packet headers and trailers |
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* |
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* This class is used by the Packet class to record every operation |
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* performed on the packet's buffer. This class also provides |
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* an implementation of the Packet::Print methods which uses |
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* the metadata to analyse the content of the packet's buffer. |
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* |
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* To achieve this, this class maintains a linked list of so-called |
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* "items", each of which represents a header or a trailer, or |
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* payload, or a fragment of any of these. Each item contains a "next" |
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* and a "prev" field which point to the next and previous entries |
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* in the linked list. The PacketMetadata class maintains a pair |
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* of pointers to the head and the tail of the linked list. |
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* |
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* Each entry in the list also maintains: |
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* - its native size (the size it had when it was first added |
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* to the packet) |
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* - its type: identifies what kind of header, what kind of trailer, |
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* if it is payload or not |
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* - the uid of the packet to which it was first added |
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* - the start and end of the area represented by a fragment |
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* if it is one. |
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* |
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* This linked list is flattened in a byte buffer stored in |
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* struct PacketMetadata::Data. Each entry of the linked list is |
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* identified by an offset which identifies the first byte of the |
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* entry from the start of the data buffer. The size of this data |
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* buffer is 2^16-1 bytes maximum which somewhat limits the number |
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* of entries which can be stored in this linked list but it is |
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* quite unlikely to hit this limit in practice. |
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* |
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* Each item of the linked list is a variable-sized byte buffer |
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* made of a number of fields. Some of these fields are stored |
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* as fixed-size 32 bit integers, others as fixed-size 16 bit |
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* integers, and some others as variable-size 32-bit integers. |
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* The variable-size 32 bit integers are stored using the uleb128 |
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* encoding. |
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*/ |
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class PacketMetadata { |
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public: |
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static void Enable (void); |
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static void SetOptOne (bool optOne); |
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inline PacketMetadata (uint32_t uid, uint32_t size); |
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inline PacketMetadata (PacketMetadata const &o); |
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inline PacketMetadata &operator = (PacketMetadata const& o); |
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inline ~PacketMetadata (); |
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template <typename T> |
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void AddHeader (T const &header, uint32_t size); |
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template <typename T> |
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void RemoveHeader (T const &header, uint32_t size); |
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template <typename T> |
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void AddTrailer (T const &trailer, uint32_t size); |
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template <typename T> |
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void RemoveTrailer (T const &trailer, uint32_t size); |
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PacketMetadata CreateFragment (uint32_t start, uint32_t end) const; |
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void AddAtEnd (PacketMetadata const&o); |
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void AddPaddingAtEnd (uint32_t end); |
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void RemoveAtStart (uint32_t start); |
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void RemoveAtEnd (uint32_t end); |
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uint32_t GetUid (void) const; |
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void Print (std::ostream &os, Buffer buffer, PacketPrinter const &printer) const; |
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uint32_t GetSerializedSize (void) const; |
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void Serialize (Buffer::Iterator i, uint32_t size) const; |
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uint32_t Deserialize (Buffer::Iterator i); |
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static void PrintStats (void); |
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private: |
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struct Data { |
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/* number of references to this struct Data instance. */ |
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114 |
uint16_t m_count; |
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115 |
/* size (in bytes) of m_data buffer below */ |
835
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116 |
uint16_t m_size; |
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|
117 |
/* max of the m_used field over all objects which |
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|
118 |
* reference this struct Data instance */ |
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119 |
uint16_t m_dirtyEnd; |
900
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|
120 |
/* variable-sized buffer of bytes */ |
835
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|
121 |
uint8_t m_data[10]; |
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122 |
}; |
900
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|
123 |
/* Note that since the next and prev fields are 16 bit integers |
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|
124 |
and since the value 0xffff is reserved to identify the |
2087082ba3ed
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887
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|
125 |
fact that the end or the start of the list is reached, |
2087082ba3ed
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|
126 |
only a limited number of elements can be stored in |
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|
127 |
a m_data byte buffer. |
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|
128 |
*/ |
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|
129 |
struct SmallItem { |
900
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|
130 |
/* offset (in bytes) from start of m_data buffer |
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|
131 |
to next element in linked list. value is 0xffff |
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132 |
if next element does not exist. |
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|
133 |
stored as a fixed-size 16 bit integer. |
900
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|
134 |
*/ |
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|
135 |
uint16_t next; |
900
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|
136 |
/* offset (in bytes) from start of m_data buffer |
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|
137 |
to previous element in linked list. value is 0xffff |
2087082ba3ed
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diff
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|
138 |
if previous element does not exist. |
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|
139 |
stored as a fixed-size 16 bit integer. |
900
2087082ba3ed
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|
140 |
*/ |
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|
141 |
uint16_t prev; |
900
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|
142 |
/* the high 31 bits of this field identify the |
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|
143 |
type of the header or trailer represented by |
2087082ba3ed
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|
144 |
this item: the value zero represents payload. |
2087082ba3ed
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diff
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|
145 |
If the low bit of this uid is one, an ExtraItem |
2087082ba3ed
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|
146 |
structure follows this SmallItem structure. |
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|
147 |
stored as a variable-size 32 bit integer. |
900
2087082ba3ed
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|
148 |
*/ |
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|
149 |
uint32_t typeUid; |
900
2087082ba3ed
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|
150 |
/* the size (in bytes) of the header or trailer represented |
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|
151 |
by this element. |
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|
152 |
stored as a variable-size 32 bit integer. |
900
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|
153 |
*/ |
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|
154 |
uint32_t size; |
900
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|
155 |
/* this field tries to uniquely identify each header or |
2087082ba3ed
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parents:
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|
156 |
trailer _instance_ while the typeUid field uniquely |
2087082ba3ed
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|
157 |
identifies each header or trailer _type_. This field |
2087082ba3ed
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|
158 |
is used to test whether two items are equal in the sense |
2087082ba3ed
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parents:
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|
159 |
that they represent the same header or trailer instance. |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
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diff
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|
160 |
That equality test is based on the typeUid and chunkUid |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
887
diff
changeset
|
161 |
fields so, the likelyhood that two header instances |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
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diff
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|
162 |
share the same chunkUid _and_ typeUid is very small |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
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diff
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|
163 |
unless they are really representations of the same header |
2087082ba3ed
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|
164 |
instance. |
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|
165 |
stored as a fixed-size 16 bit integer. |
900
2087082ba3ed
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parents:
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|
166 |
*/ |
835
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a new implementation of the PacketHistory API
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|
167 |
uint16_t chunkUid; |
789
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|
168 |
}; |
835
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a new implementation of the PacketHistory API
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|
169 |
struct ExtraItem { |
900
2087082ba3ed
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diff
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|
170 |
/* offset (in bytes) from start of original header to |
2087082ba3ed
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parents:
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diff
changeset
|
171 |
the start of the fragment still present. |
908
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changeset
|
172 |
stored as a variable-size 32 bit integer. |
900
2087082ba3ed
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parents:
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diff
changeset
|
173 |
*/ |
835
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a new implementation of the PacketHistory API
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|
174 |
uint32_t fragmentStart; |
900
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
887
diff
changeset
|
175 |
/* offset (in bytes) from start of original header to |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
887
diff
changeset
|
176 |
the end of the fragment still present. |
908
a8bfc0d02134
add more internal documentation
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parents:
907
diff
changeset
|
177 |
stored as a variable-size 32 bit integer. |
900
2087082ba3ed
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parents:
887
diff
changeset
|
178 |
*/ |
835
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a new implementation of the PacketHistory API
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diff
changeset
|
179 |
uint32_t fragmentEnd; |
900
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
887
diff
changeset
|
180 |
/* the packetUid of the packet in which this header or trailer |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
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parents:
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diff
changeset
|
181 |
was first added. It could be different from the m_packetUid |
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
887
diff
changeset
|
182 |
field if the user has aggregated multiple packets into one. |
908
a8bfc0d02134
add more internal documentation
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parents:
907
diff
changeset
|
183 |
stored as a fixed-size 32 bit integer. |
900
2087082ba3ed
change default pretty printing output format, add doc to metadata data structures
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
887
diff
changeset
|
184 |
*/ |
835
ea5ca71d6c0c
a new implementation of the PacketHistory API
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parents:
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diff
changeset
|
185 |
uint32_t packetUid; |
ea5ca71d6c0c
a new implementation of the PacketHistory API
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|
186 |
}; |
ea5ca71d6c0c
a new implementation of the PacketHistory API
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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changeset
|
187 |
|
957 | 188 |
class DataFreeList : public std::vector<struct Data *> |
189 |
{ |
|
190 |
public: |
|
191 |
~DataFreeList (); |
|
192 |
}; |
|
789
1e19322e9012
merge unfinished packet history code
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
193 |
|
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
194 |
PacketMetadata (); |
862
4add4fe2020f
simplify a bit the small item logic
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
859
diff
changeset
|
195 |
void DoAddHeader (uint32_t uid, uint32_t size); |
4add4fe2020f
simplify a bit the small item logic
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
859
diff
changeset
|
196 |
void DoRemoveHeader (uint32_t uid, uint32_t size); |
4add4fe2020f
simplify a bit the small item logic
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
859
diff
changeset
|
197 |
void DoAddTrailer (uint32_t uid, uint32_t size); |
4add4fe2020f
simplify a bit the small item logic
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
859
diff
changeset
|
198 |
void DoRemoveTrailer (uint32_t uid, uint32_t size); |
794
f30d69393a24
implement ItemList::AddAtEnd
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
792
diff
changeset
|
199 |
|
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
200 |
inline uint16_t AddSmall (const PacketMetadata::SmallItem *item); |
867
e98cde9aae4a
remove atStart arg to AddBig
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
866
diff
changeset
|
201 |
uint16_t AddBig (uint32_t head, uint32_t tail, |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
202 |
const PacketMetadata::SmallItem *item, |
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
203 |
const PacketMetadata::ExtraItem *extraItem); |
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
204 |
void ReplaceTail (PacketMetadata::SmallItem *item, |
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
205 |
PacketMetadata::ExtraItem *extraItem, |
855
6b27e6180fcb
implement ReplaceTail
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
854
diff
changeset
|
206 |
uint32_t available); |
863
768945a45089
Update -> UpdateHead + UpdateTail
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
862
diff
changeset
|
207 |
inline void UpdateHead (uint16_t written); |
768945a45089
Update -> UpdateHead + UpdateTail
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
862
diff
changeset
|
208 |
inline void UpdateTail (uint16_t written); |
870
e335d37541c3
try alternative implementation of AddSmall
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
869
diff
changeset
|
209 |
uint32_t GetUleb128Size (uint32_t value) const; |
868
390916503061
optimize a bit AddHeader
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
867
diff
changeset
|
210 |
uint32_t ReadUleb128 (const uint8_t **pBuffer) const; |
857
6f7593400c82
a few micro-optimizations
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
855
diff
changeset
|
211 |
inline void Append16 (uint16_t value, uint8_t *buffer); |
6f7593400c82
a few micro-optimizations
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
855
diff
changeset
|
212 |
inline bool TryToAppend (uint32_t value, uint8_t **pBuffer, uint8_t *end); |
6f7593400c82
a few micro-optimizations
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
855
diff
changeset
|
213 |
inline bool TryToAppendFast (uint32_t value, uint8_t **pBuffer, uint8_t *end); |
873
2aab1eb32b12
store chunkUid and packetUid as fixed-size fields
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
872
diff
changeset
|
214 |
inline bool TryToAppend32 (uint32_t value, uint8_t **pBuffer, uint8_t *end); |
2aab1eb32b12
store chunkUid and packetUid as fixed-size fields
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
872
diff
changeset
|
215 |
inline bool TryToAppend16 (uint16_t value, uint8_t **pBuffer, uint8_t *end); |
876
850783184c36
add back optimization option
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
874
diff
changeset
|
216 |
void AppendValue (uint32_t value, uint8_t *buffer); |
850783184c36
add back optimization option
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
874
diff
changeset
|
217 |
void AppendValueExtra (uint32_t value, uint8_t *buffer); |
870
e335d37541c3
try alternative implementation of AddSmall
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
869
diff
changeset
|
218 |
inline void Reserve (uint32_t n); |
835
ea5ca71d6c0c
a new implementation of the PacketHistory API
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
834
diff
changeset
|
219 |
void ReserveCopy (uint32_t n); |
907
c67b33c30a8e
test and fix backward printing
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
900
diff
changeset
|
220 |
uint32_t DoPrint (const struct PacketMetadata::SmallItem *item, |
c67b33c30a8e
test and fix backward printing
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
900
diff
changeset
|
221 |
const struct PacketMetadata::ExtraItem *extraItem, |
837
b73b63e84130
implement PacketHistory::Print
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
835
diff
changeset
|
222 |
Buffer data, uint32_t offset, const PacketPrinter &printer, |
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223 |
std::ostream &os) const; |
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224 |
uint32_t GetTotalSize (void) const; |
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225 |
uint32_t ReadItems (uint16_t current, |
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226 |
struct PacketMetadata::SmallItem *item, |
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|
227 |
struct PacketMetadata::ExtraItem *extraItem) const; |
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228 |
|
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229 |
|
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230 |
static struct PacketMetadata::Data *Create (uint32_t size); |
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|
231 |
static void Recycle (struct PacketMetadata::Data *data); |
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|
232 |
static struct PacketMetadata::Data *Allocate (uint32_t n); |
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|
233 |
static void Deallocate (struct PacketMetadata::Data *data); |
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|
234 |
|
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235 |
static DataFreeList m_freeList; |
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|
236 |
static bool m_enable; |
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|
237 |
static uint32_t m_maxSize; |
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|
238 |
static uint16_t m_chunkUid; |
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|
239 |
|
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|
240 |
struct Data *m_data; |
900
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|
241 |
/** |
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|
242 |
head -(next)-> tail |
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|
243 |
^ | |
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|
244 |
\---(prev)---| |
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|
245 |
*/ |
840
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|
246 |
uint16_t m_head; |
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|
247 |
uint16_t m_tail; |
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|
248 |
uint16_t m_used; |
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|
249 |
uint32_t m_packetUid; |
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|
250 |
}; |
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|
251 |
|
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|
252 |
}; // namespace ns3 |
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253 |
|
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|
254 |
namespace ns3 { |
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|
255 |
|
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|
256 |
template <typename T> |
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|
257 |
void |
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PacketHistory -> PacketMetadata
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|
258 |
PacketMetadata::AddHeader (T const &header, uint32_t size) |
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|
259 |
{ |
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|
260 |
DoAddHeader (ChunkRegistry::GetHeaderUid<T> () << 1, size); |
789
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|
261 |
} |
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changeset
|
262 |
|
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|
263 |
template <typename T> |
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|
264 |
void |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
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diff
changeset
|
265 |
PacketMetadata::RemoveHeader (T const &header, uint32_t size) |
789
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|
266 |
{ |
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changeset
|
267 |
DoRemoveHeader (ChunkRegistry::GetHeaderUid<T> () << 1, size); |
789
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parents:
diff
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|
268 |
} |
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parents:
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|
269 |
template <typename T> |
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parents:
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|
270 |
void |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
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parents:
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diff
changeset
|
271 |
PacketMetadata::AddTrailer (T const &trailer, uint32_t size) |
789
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parents:
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|
272 |
{ |
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|
273 |
DoAddTrailer (ChunkRegistry::GetTrailerUid<T> () << 1, size); |
789
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|
274 |
} |
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|
275 |
template <typename T> |
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|
276 |
void |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
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parents:
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diff
changeset
|
277 |
PacketMetadata::RemoveTrailer (T const &trailer, uint32_t size) |
789
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parents:
diff
changeset
|
278 |
{ |
1141
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parents:
1127
diff
changeset
|
279 |
DoRemoveTrailer (ChunkRegistry::GetTrailerUid<T> () << 1, size); |
789
1e19322e9012
merge unfinished packet history code
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parents:
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changeset
|
280 |
} |
1e19322e9012
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parents:
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|
281 |
|
864
0cd573b2a506
make some methods inline
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diff
changeset
|
282 |
|
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
283 |
PacketMetadata::PacketMetadata (uint32_t uid, uint32_t size) |
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
284 |
: m_data (m_data = PacketMetadata::Create (10)), |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
285 |
m_head (0xffff), |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
286 |
m_tail (0xffff), |
0cd573b2a506
make some methods inline
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parents:
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diff
changeset
|
287 |
m_used (0), |
0cd573b2a506
make some methods inline
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parents:
863
diff
changeset
|
288 |
m_packetUid (uid) |
0cd573b2a506
make some methods inline
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parents:
863
diff
changeset
|
289 |
{ |
872
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
290 |
memset (m_data->m_data, 0xff, 4); |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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diff
changeset
|
291 |
if (size > 0) |
0cd573b2a506
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parents:
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diff
changeset
|
292 |
{ |
0cd573b2a506
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diff
changeset
|
293 |
DoAddHeader (0, size); |
0cd573b2a506
make some methods inline
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diff
changeset
|
294 |
} |
0cd573b2a506
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|
295 |
} |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
296 |
PacketMetadata::PacketMetadata (PacketMetadata const &o) |
864
0cd573b2a506
make some methods inline
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parents:
863
diff
changeset
|
297 |
: m_data (o.m_data), |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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diff
changeset
|
298 |
m_head (o.m_head), |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
299 |
m_tail (o.m_tail), |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
300 |
m_used (o.m_used), |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
301 |
m_packetUid (o.m_packetUid) |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
302 |
{ |
872
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
303 |
NS_ASSERT (m_data != 0); |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
304 |
m_data->m_count++; |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
305 |
} |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
306 |
PacketMetadata & |
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
307 |
PacketMetadata::operator = (PacketMetadata const& o) |
864
0cd573b2a506
make some methods inline
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parents:
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diff
changeset
|
308 |
{ |
0cd573b2a506
make some methods inline
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parents:
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diff
changeset
|
309 |
if (m_data == o.m_data) |
0cd573b2a506
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changeset
|
310 |
{ |
0cd573b2a506
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parents:
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diff
changeset
|
311 |
// self assignment |
0cd573b2a506
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parents:
863
diff
changeset
|
312 |
return *this; |
0cd573b2a506
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
313 |
} |
872
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
314 |
NS_ASSERT (m_data != 0); |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
315 |
m_data->m_count--; |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
316 |
if (m_data->m_count == 0) |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
317 |
{ |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
318 |
PacketMetadata::Recycle (m_data); |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
319 |
} |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
320 |
m_data = o.m_data; |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
321 |
m_head = o.m_head; |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
322 |
m_tail = o.m_tail; |
0cd573b2a506
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
323 |
m_used = o.m_used; |
0cd573b2a506
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
324 |
m_packetUid = o.m_packetUid; |
872
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
325 |
NS_ASSERT (m_data != 0); |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
326 |
m_data->m_count++; |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
327 |
return *this; |
0cd573b2a506
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
328 |
} |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
329 |
PacketMetadata::~PacketMetadata () |
864
0cd573b2a506
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parents:
863
diff
changeset
|
330 |
{ |
872
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
331 |
NS_ASSERT (m_data != 0); |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
332 |
m_data->m_count--; |
cd19d2692521
unconditionally set m_data
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
870
diff
changeset
|
333 |
if (m_data->m_count == 0) |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
334 |
{ |
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
335 |
PacketMetadata::Recycle (m_data); |
864
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
336 |
} |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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diff
changeset
|
337 |
} |
0cd573b2a506
make some methods inline
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
863
diff
changeset
|
338 |
|
789
1e19322e9012
merge unfinished packet history code
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
339 |
}; // namespace ns3 |
1e19322e9012
merge unfinished packet history code
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
340 |
|
1e19322e9012
merge unfinished packet history code
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
341 |
|
883
4d2da35c09b0
PacketHistory -> PacketMetadata
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
882
diff
changeset
|
342 |
#endif /* PACKET_METADATA_H */ |