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flow-id-tag.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2008 INRIA
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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
19  */
20 #include "flow-id-tag.h"
21 #include "ns3/log.h"
22 
23 NS_LOG_COMPONENT_DEFINE ("FlowIdTag");
24 
25 namespace ns3 {
26 
27 NS_OBJECT_ENSURE_REGISTERED (FlowIdTag);
28 
29 TypeId
30 FlowIdTag::GetTypeId (void)
31 {
32  static TypeId tid = TypeId ("ns3::FlowIdTag")
33  .SetParent<Tag> ()
34  .AddConstructor<FlowIdTag> ()
35  ;
36  return tid;
37 }
38 TypeId
39 FlowIdTag::GetInstanceTypeId (void) const
40 {
41  return GetTypeId ();
42 }
43 uint32_t
44 FlowIdTag::GetSerializedSize (void) const
45 {
46  NS_LOG_FUNCTION (this);
47  return 4;
48 }
49 void
50 FlowIdTag::Serialize (TagBuffer buf) const
51 {
52  NS_LOG_FUNCTION (this << &buf);
53  buf.WriteU32 (m_flowId);
54 }
55 void
56 FlowIdTag::Deserialize (TagBuffer buf)
57 {
58  NS_LOG_FUNCTION (this << &buf);
59  m_flowId = buf.ReadU32 ();
60 }
61 void
62 FlowIdTag::Print (std::ostream &os) const
63 {
64  NS_LOG_FUNCTION (this << &os);
65  os << "FlowId=" << m_flowId;
66 }
67 FlowIdTag::FlowIdTag ()
68  : Tag ()
69 {
70  NS_LOG_FUNCTION (this);
71 }
72 
73 FlowIdTag::FlowIdTag (uint32_t id)
74  : Tag (),
75  m_flowId (id)
76 {
77  NS_LOG_FUNCTION (this << id);
78 }
79 
80 void
81 FlowIdTag::SetFlowId (uint32_t id)
82 {
83  NS_LOG_FUNCTION (this << id);
84  m_flowId = id;
85 }
86 uint32_t
87 FlowIdTag::GetFlowId (void) const
88 {
89  NS_LOG_FUNCTION (this);
90  return m_flowId;
91 }
92 
93 uint32_t
94 FlowIdTag::AllocateFlowId (void)
95 {
96  NS_LOG_FUNCTION_NOARGS ();
97  static uint32_t nextFlowId = 1;
98  uint32_t flowId = nextFlowId;
99  nextFlowId++;
100  return flowId;
101 }
102 
103 } // namespace ns3
104