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bandwidth-manager.h
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2007,2008,2009 INRIA, UDcast
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  * Authors: Jahanzeb Farooq <jahanzeb.farooq@sophia.inria.fr>
19  * Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
20  * <amine.ismail@UDcast.com>
21  */
22 
23 #ifndef BANDWIDTH_MANAGER_H
24 #define BANDWIDTH_MANAGER_H
25 
26 #include <stdint.h>
27 #include "wimax-net-device.h"
28 #include "ul-job.h"
29 #include "bs-uplink-scheduler.h"
30 #include "cid.h"
31 
32 /*
33  The same bandwidth manager class serves both for BS and SS though some functions are exclusive to only one of them.
34  */
35 
36 namespace ns3 {
37 
38 class SSRecord;
39 class ServiceFlow;
40 class UlJob;
41 class UplinkScheduler;
42 
54 class BandwidthManager : public Object
55 {
56 public:
57  static TypeId GetTypeId (void);
58  BandwidthManager (Ptr<WimaxNetDevice> device);
59  ~BandwidthManager (void);
60  void DoDispose (void);
61 
62  uint32_t CalculateAllocationSize (const SSRecord *ssRecord, const ServiceFlow *serviceFlow);
63  ServiceFlow* SelectFlowForRequest (uint32_t &bytesToRequest);
64  void SendBandwidthRequest (uint8_t uiuc, uint16_t allocationSize);
65  void ProcessBandwidthRequest (const BandwidthRequestHeader &bwRequestHdr);
66  void SetSubframeRatio (void);
67  uint32_t GetSymbolsPerFrameAllocated (void);
68 private:
69  BandwidthManager (const BandwidthManager &);
70  BandwidthManager& operator= (const BandwidthManager &);
71 
72  Ptr<WimaxNetDevice> m_device;
73  uint16_t m_nrBwReqsSent;
74 };
75 
76 } // namespace ns3
77 
78 #endif /* BANDWIDTH_MANAGER_H */