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block-ack-agreement.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2009 MIRKO BANCHI
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: Mirko Banchi <mk.banchi@gmail.com>
19  */
20 #include "block-ack-agreement.h"
21 #include "ns3/log.h"
22 
23 NS_LOG_COMPONENT_DEFINE ("BlockAckAgreement");
24 
25 namespace ns3 {
26 
27 BlockAckAgreement::BlockAckAgreement ()
28  : m_amsduSupported (0),
29  m_blockAckPolicy (1),
30  m_inactivityEvent ()
31 {
32  NS_LOG_FUNCTION (this);
33 }
34 
35 BlockAckAgreement::BlockAckAgreement (Mac48Address peer, uint8_t tid)
36  : m_amsduSupported (0),
37  m_blockAckPolicy (1),
38  m_inactivityEvent ()
39 {
40  NS_LOG_FUNCTION (this << peer << static_cast<uint32_t> (tid));
41  m_tid = tid;
42  m_peer = peer;
43 }
44 
45 BlockAckAgreement::~BlockAckAgreement ()
46 {
47  NS_LOG_FUNCTION (this);
48  m_inactivityEvent.Cancel ();
49 }
50 
51 void
52 BlockAckAgreement::SetBufferSize (uint16_t bufferSize)
53 {
54  NS_LOG_FUNCTION (this << bufferSize);
55  NS_ASSERT (bufferSize <= 1024);
56  NS_ASSERT (bufferSize % 16 == 0);
57  m_bufferSize = bufferSize;
58 }
59 void
60 BlockAckAgreement::SetTimeout (uint16_t timeout)
61 {
62  NS_LOG_FUNCTION (this << timeout);
63  m_timeout = timeout;
64 }
65 void
66 BlockAckAgreement::SetStartingSequence (uint16_t seq)
67 {
68  NS_LOG_FUNCTION (this << seq);
69  NS_ASSERT (seq < 4096);
70  m_startingSeq = seq;
71 }
72 void
73 BlockAckAgreement::SetImmediateBlockAck (void)
74 {
75  NS_LOG_FUNCTION (this);
76  m_blockAckPolicy = 1;
77 }
78 void
79 BlockAckAgreement::SetDelayedBlockAck (void)
80 {
81  NS_LOG_FUNCTION (this);
82  m_blockAckPolicy = 0;
83 }
84 void
85 BlockAckAgreement::SetAmsduSupport (bool supported)
86 {
87  NS_LOG_FUNCTION (this << supported);
88  m_amsduSupported = supported;
89 }
90 
91 uint8_t
92 BlockAckAgreement::GetTid (void) const
93 {
94  NS_LOG_FUNCTION (this);
95  return m_tid;
96 }
97 Mac48Address
98 BlockAckAgreement::GetPeer (void) const
99 {
100  NS_LOG_FUNCTION (this);
101  return m_peer;
102 }
103 uint16_t
104 BlockAckAgreement::GetBufferSize (void) const
105 {
106  NS_LOG_FUNCTION (this);
107  return m_bufferSize;
108 }
109 uint16_t
110 BlockAckAgreement::GetTimeout (void) const
111 {
112  NS_LOG_FUNCTION (this);
113  return m_timeout;
114 }
115 uint16_t
116 BlockAckAgreement::GetStartingSequence (void) const
117 {
118  NS_LOG_FUNCTION (this);
119  return m_startingSeq;
120 }
121 uint16_t
122 BlockAckAgreement::GetStartingSequenceControl (void) const
123 {
124  NS_LOG_FUNCTION (this);
125  uint16_t seqControl = (m_startingSeq << 4) | 0xfff0;
126  return seqControl;
127 }
128 bool
129 BlockAckAgreement::IsImmediateBlockAck (void) const
130 {
131  NS_LOG_FUNCTION (this);
132  return (m_blockAckPolicy == 1);
133 }
134 bool
135 BlockAckAgreement::IsAmsduSupported (void) const
136 {
137  NS_LOG_FUNCTION (this);
138  return (m_amsduSupported == 1) ? true : false;
139 }
140 
141 } // namespace ns3