A Discrete-Event Network Simulator
API
bs-scheduler.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2007,2008 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;
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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: Jahanzeb Farooq <jahanzeb.farooq@sophia.inria.fr>
19  */
20 
21 #include "bs-scheduler.h"
22 #include "ns3/simulator.h"
23 #include "bs-net-device.h"
24 #include "ns3/packet-burst.h"
25 #include "cid.h"
26 #include "wimax-mac-header.h"
27 #include "ss-record.h"
28 #include "wimax-mac-queue.h"
29 #include "ns3/log.h"
30 #include "burst-profile-manager.h"
31 #include "wimax-connection.h"
32 #include "connection-manager.h"
33 #include "ss-manager.h"
34 #include "service-flow.h"
35 #include "service-flow-record.h"
36 #include "service-flow-manager.h"
37 
38 namespace ns3 {
39 
40 NS_LOG_COMPONENT_DEFINE ("BSScheduler");
41 
42 NS_OBJECT_ENSURE_REGISTERED (BSScheduler);
43 
44 TypeId
46 {
47  static TypeId tid = TypeId ("ns3::BSScheduler")
48  .SetParent<Object> ()
49  .SetGroupName("Wimax")
50  // No AddConstructor because this is an abstract class.
51  ;
52  return tid;
53 }
54 
56  : m_downlinkBursts (new std::list<std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > > ())
57 {
58  // m_downlinkBursts is filled by AddDownlinkBurst and emptied by
59  // wimax-bs-net-device::sendBurst and wimax-ss-net-device::sendBurst
60 }
61 
63  : m_downlinkBursts (new std::list<std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > > ())
64 {
65 
66 }
67 
69 {
70  std::list<std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > > *downlinkBursts = m_downlinkBursts;
71  std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > pair;
72  while (downlinkBursts->size ())
73  {
74  pair = downlinkBursts->front ();
75  pair.second = 0;
76  delete pair.first;
77  }
78  SetBs (0);
79  delete m_downlinkBursts;
80  m_downlinkBursts = 0;
81 }
82 
83 void
85 {
86  m_bs = bs;
87 }
88 
90 {
91  return m_bs;
92 }
93 
94 bool
96  int availableSymbols,
97  WimaxPhy::ModulationType modulationType)
98 {
99  NS_LOG_INFO ("BS Scheduler, CheckForFragmentation");
100  if (connection->GetType () != Cid::TRANSPORT)
101  {
102  NS_LOG_INFO ("\t No Transport connction, Fragmentation IS NOT possible");
103  return false;
104  }
105  uint32_t availableByte = GetBs ()->GetPhy ()->
106  GetNrBytes (availableSymbols, modulationType);
107 
108  uint32_t headerSize = connection->GetQueue ()->GetFirstPacketHdrSize (
110  NS_LOG_INFO ("\t availableByte = " << availableByte <<
111  " headerSize = " << headerSize);
112 
113  if (availableByte > headerSize)
114  {
115  NS_LOG_INFO ("\t Fragmentation IS possible");
116  return true;
117  }
118  else
119  {
120  NS_LOG_INFO ("\t Fragmentation IS NOT possible");
121  return false;
122  }
123 }
124 } // namespace ns3
static TypeId GetTypeId(void)
Get the type ID.
Definition: bs-scheduler.cc:45
virtual void SetBs(Ptr< BaseStationNetDevice > bs)
Set the base station.
Definition: bs-scheduler.cc:84
virtual Ptr< BaseStationNetDevice > GetBs(void)
Get the base station.
Definition: bs-scheduler.cc:89
Ptr< BaseStationNetDevice > m_bs
base station
Definition: bs-scheduler.h:127
std::list< std::pair< OfdmDlMapIe *, Ptr< PacketBurst > > > * m_downlinkBursts
down link bursts
Definition: bs-scheduler.h:128
bool CheckForFragmentation(Ptr< WimaxConnection > connection, int availableSymbols, WimaxPhy::ModulationType modulationType)
Check if the packet fragmentation is possible for transport connection.
Definition: bs-scheduler.cc:95
@ TRANSPORT
Definition: cid.h:47
A base class which provides memory management and object aggregation.
Definition: object.h:88
This class implements the OFDM DL-MAP information element as described by "IEEE Standard for Local an...
this class implement a burst as a list of packets
Definition: packet-burst.h:36
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:74
a unique identifier for an interface.
Definition: type-id.h:59
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:922
ModulationType
ModulationType enumeration.
Definition: wimax-phy.h:52
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:281
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:45
Every class exported by the ns3 library is enclosed in the ns3 namespace.
#define list