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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 
22 namespace ns3 {
23 
24 BlockAckAgreement::BlockAckAgreement ()
25  : m_amsduSupported (0),
26  m_blockAckPolicy (1),
27  m_inactivityEvent ()
28 {
29 }
30 
31 BlockAckAgreement::BlockAckAgreement (Mac48Address peer, uint8_t tid)
32  : m_amsduSupported (0),
33  m_blockAckPolicy (1),
34  m_inactivityEvent ()
35 {
36  m_tid = tid;
37  m_peer = peer;
38 }
39 
40 BlockAckAgreement::~BlockAckAgreement ()
41 {
42  m_inactivityEvent.Cancel ();
43 }
44 
45 void
46 BlockAckAgreement::SetBufferSize (uint16_t bufferSize)
47 {
48  NS_ASSERT (bufferSize <= 1024);
49  NS_ASSERT (bufferSize % 16 == 0);
50  m_bufferSize = bufferSize;
51 }
52 void
53 BlockAckAgreement::SetTimeout (uint16_t timeout)
54 {
55  m_timeout = timeout;
56 }
57 void
58 BlockAckAgreement::SetStartingSequence (uint16_t seq)
59 {
60  NS_ASSERT (seq < 4096);
61  m_startingSeq = seq;
62 }
63 void
64 BlockAckAgreement::SetImmediateBlockAck (void)
65 {
66  m_blockAckPolicy = 1;
67 }
68 void
69 BlockAckAgreement::SetDelayedBlockAck (void)
70 {
71  m_blockAckPolicy = 0;
72 }
73 void
74 BlockAckAgreement::SetAmsduSupport (bool supported)
75 {
76  m_amsduSupported = supported;
77 }
78 
79 uint8_t
80 BlockAckAgreement::GetTid (void) const
81 {
82  return m_tid;
83 }
84 Mac48Address
85 BlockAckAgreement::GetPeer (void) const
86 {
87  return m_peer;
88 }
89 uint16_t
90 BlockAckAgreement::GetBufferSize (void) const
91 {
92  return m_bufferSize;
93 }
94 uint16_t
95 BlockAckAgreement::GetTimeout (void) const
96 {
97  return m_timeout;
98 }
99 uint16_t
100 BlockAckAgreement::GetStartingSequence (void) const
101 {
102  return m_startingSeq;
103 }
104 uint16_t
105 BlockAckAgreement::GetStartingSequenceControl (void) const
106 {
107  uint16_t seqControl = (m_startingSeq << 4) | 0xfff0;
108  return seqControl;
109 }
110 bool
111 BlockAckAgreement::IsImmediateBlockAck (void) const
112 {
113  return (m_blockAckPolicy == 1);
114 }
115 bool
116 BlockAckAgreement::IsAmsduSupported (void) const
117 {
118  return (m_amsduSupported == 1) ? true : false;
119 }
120 
121 } // namespace ns3