A Discrete-Event Network Simulator
API
block-ack-cache.h
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2010 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 
21 #ifndef BLOCK_ACK_CACHE_H
22 #define BLOCK_ACK_CACHE_H
23 
24 #include <stdint.h>
25 
26 namespace ns3 {
27 
28 class WifiMacHeader;
29 class CtrlBAckResponseHeader;
30 
37 {
38 public:
39  void Init (uint16_t winStart, uint16_t winSize);
40 
41  void UpdateWithMpdu (const WifiMacHeader *hdr);
42  void UpdateWithBlockAckReq (uint16_t startingSeq);
48  uint16_t GetWinStart (void);
49 
50  void FillBlockAckBitmap (CtrlBAckResponseHeader *blockAckHeader);
51 
52 
53 private:
54  void ResetPortionOfBitmap (uint16_t start, uint16_t end);
55  bool IsInWindow (uint16_t seq);
56 
57  uint16_t m_winStart;
58  uint8_t m_winSize;
59  uint16_t m_winEnd;
60 
61  uint16_t m_bitmap[4096];
62 };
63 
64 } //namespace ns3
65 
66 #endif /* BLOCK_ACK_CACHE_H */
void ResetPortionOfBitmap(uint16_t start, uint16_t end)
bool IsInWindow(uint16_t seq)
def start()
Definition: core.py:1482
void UpdateWithBlockAckReq(uint16_t startingSeq)
void Init(uint16_t winStart, uint16_t winSize)
void UpdateWithMpdu(const WifiMacHeader *hdr)
Headers for Block ack response.
Definition: ctrl-headers.h:186
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void FillBlockAckBitmap(CtrlBAckResponseHeader *blockAckHeader)
uint16_t GetWinStart(void)
When an A-MPDU is received, the window start may change to a new value depending on the sequence numb...
uint16_t m_bitmap[4096]
Implements the IEEE 802.11 MAC header.