author | Timo Bingmann <tbns@idlebox.net> |
Mon, 30 Nov 2009 18:20:30 +0100 | |
changeset 5819 | 514ec98954ab |
parent 5189 | 8fcdf87a790a |
child 5820 | 1c02054740eb |
permissions | -rw-r--r-- |
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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2005,2006 INRIA |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
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*/ |
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#include "wifi-phy-state-helper.h" |
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#include "ns3/log.h" |
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#include "ns3/simulator.h" |
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#include "ns3/trace-source-accessor.h" |
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NS_LOG_COMPONENT_DEFINE ("WifiPhyStateHelper"); |
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namespace ns3 { |
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NS_OBJECT_ENSURE_REGISTERED (WifiPhyStateHelper); |
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TypeId |
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WifiPhyStateHelper::GetTypeId (void) |
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{ |
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static TypeId tid = TypeId ("ns3::WifiPhyStateHelper") |
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.SetParent<Object> () |
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.AddConstructor<WifiPhyStateHelper> () |
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.AddTraceSource ("State", |
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"The state of the PHY layer", |
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MakeTraceSourceAccessor (&WifiPhyStateHelper::m_stateLogger)) |
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.AddTraceSource ("RxOk", |
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"A packet has been received successfully.", |
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MakeTraceSourceAccessor (&WifiPhyStateHelper::m_rxOkTrace)) |
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.AddTraceSource ("RxError", |
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"A packet has been received unsuccessfully.", |
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MakeTraceSourceAccessor (&WifiPhyStateHelper::m_rxErrorTrace)) |
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.AddTraceSource ("Tx", "Packet transmission is starting.", |
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MakeTraceSourceAccessor (&WifiPhyStateHelper::m_txTrace)) |
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; |
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return tid; |
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} |
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|
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WifiPhyStateHelper::WifiPhyStateHelper () |
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: m_syncing (false), |
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m_endTx (Seconds (0)), |
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m_endSync (Seconds (0)), |
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m_endCcaBusy (Seconds (0)), |
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m_endSwitching (Seconds (0)), |
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m_startTx (Seconds (0)), |
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m_startSync (Seconds (0)), |
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m_startCcaBusy (Seconds (0)), |
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m_startSwitching (Seconds (0)), |
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m_previousStateChangeTime (Seconds (0)) |
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{ |
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NS_LOG_FUNCTION (this); |
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} |
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void |
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WifiPhyStateHelper::SetReceiveOkCallback (WifiPhy::SyncOkCallback callback) |
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{ |
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m_syncOkCallback = callback; |
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} |
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void |
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WifiPhyStateHelper::SetReceiveErrorCallback (WifiPhy::SyncErrorCallback callback) |
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{ |
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m_syncErrorCallback = callback; |
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} |
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void |
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WifiPhyStateHelper::RegisterListener (WifiPhyListener *listener) |
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{ |
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m_listeners.push_back (listener); |
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} |
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bool |
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WifiPhyStateHelper::IsStateCcaBusy (void) |
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{ |
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return GetState () == WifiPhy::CCA_BUSY; |
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} |
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bool |
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WifiPhyStateHelper::IsStateIdle (void) |
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{ |
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return (GetState () == WifiPhy::IDLE); |
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} |
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bool |
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WifiPhyStateHelper::IsStateBusy (void) |
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{ |
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return (GetState () != WifiPhy::IDLE); |
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} |
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bool |
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WifiPhyStateHelper::IsStateSync (void) |
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{ |
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return (GetState () == WifiPhy::SYNC); |
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} |
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bool |
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WifiPhyStateHelper::IsStateTx (void) |
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{ |
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return (GetState () == WifiPhy::TX); |
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} |
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bool |
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WifiPhyStateHelper::IsStateSwitching (void) |
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{ |
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return (GetState () == WifiPhy::SWITCHING); |
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} |
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Time |
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WifiPhyStateHelper::GetStateDuration (void) |
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parents:
diff
changeset
|
119 |
{ |
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parents:
diff
changeset
|
120 |
return Simulator::Now () - m_previousStateChangeTime; |
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parents:
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changeset
|
121 |
} |
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parents:
diff
changeset
|
122 |
|
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parents:
diff
changeset
|
123 |
Time |
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parents:
diff
changeset
|
124 |
WifiPhyStateHelper::GetDelayUntilIdle (void) |
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parents:
diff
changeset
|
125 |
{ |
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parents:
diff
changeset
|
126 |
Time retval; |
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parents:
diff
changeset
|
127 |
|
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parents:
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changeset
|
128 |
switch (GetState ()) { |
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parents:
diff
changeset
|
129 |
case WifiPhy::SYNC: |
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|
130 |
retval = m_endSync - Simulator::Now (); |
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parents:
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changeset
|
131 |
break; |
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parents:
diff
changeset
|
132 |
case WifiPhy::TX: |
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|
133 |
retval = m_endTx - Simulator::Now (); |
44645cec42f2
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parents:
diff
changeset
|
134 |
break; |
44645cec42f2
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parents:
diff
changeset
|
135 |
case WifiPhy::CCA_BUSY: |
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parents:
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changeset
|
136 |
retval = m_endCcaBusy - Simulator::Now (); |
44645cec42f2
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parents:
diff
changeset
|
137 |
break; |
5189 | 138 |
case WifiPhy::SWITCHING: |
139 |
retval = m_endSwitching - Simulator::Now (); |
|
140 |
break; |
|
3897
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changeset
|
141 |
case WifiPhy::IDLE: |
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|
142 |
retval = Seconds (0); |
44645cec42f2
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parents:
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changeset
|
143 |
break; |
44645cec42f2
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parents:
diff
changeset
|
144 |
default: |
44645cec42f2
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parents:
diff
changeset
|
145 |
NS_ASSERT (false); |
44645cec42f2
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parents:
diff
changeset
|
146 |
// NOTREACHED |
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changeset
|
147 |
retval = Seconds (0); |
44645cec42f2
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parents:
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changeset
|
148 |
break; |
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parents:
diff
changeset
|
149 |
} |
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parents:
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changeset
|
150 |
retval = Max (retval, Seconds (0)); |
44645cec42f2
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parents:
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changeset
|
151 |
return retval; |
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changeset
|
152 |
} |
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parents:
diff
changeset
|
153 |
|
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parents:
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changeset
|
154 |
Time |
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parents:
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changeset
|
155 |
WifiPhyStateHelper::GetLastRxStartTime (void) const |
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parents:
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changeset
|
156 |
{ |
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parents:
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changeset
|
157 |
return m_startSync; |
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parents:
diff
changeset
|
158 |
} |
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parents:
diff
changeset
|
159 |
|
5819
514ec98954ab
Wifi code cleanup: Correcting various const keyword ordering and removing superfluous (boolean)?true:false.
Timo Bingmann <tbns@idlebox.net>
parents:
5189
diff
changeset
|
160 |
const char * |
3897
44645cec42f2
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parents:
diff
changeset
|
161 |
WifiPhyStateHelper::StateToString (enum WifiPhy::State state) |
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parents:
diff
changeset
|
162 |
{ |
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parents:
diff
changeset
|
163 |
switch (state) { |
44645cec42f2
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parents:
diff
changeset
|
164 |
case WifiPhy::TX: |
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parents:
diff
changeset
|
165 |
return "TX"; |
44645cec42f2
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parents:
diff
changeset
|
166 |
break; |
44645cec42f2
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parents:
diff
changeset
|
167 |
case WifiPhy::CCA_BUSY: |
44645cec42f2
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parents:
diff
changeset
|
168 |
return "CCA_BUSY"; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
169 |
break; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
170 |
case WifiPhy::IDLE: |
44645cec42f2
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parents:
diff
changeset
|
171 |
return "IDLE"; |
44645cec42f2
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parents:
diff
changeset
|
172 |
break; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
173 |
case WifiPhy::SYNC: |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
174 |
return "SYNC"; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
175 |
break; |
5189 | 176 |
case WifiPhy::SWITCHING: |
177 |
return "SWITCHING"; |
|
178 |
break; |
|
3897
44645cec42f2
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parents:
diff
changeset
|
179 |
default: |
44645cec42f2
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parents:
diff
changeset
|
180 |
NS_ASSERT (false); |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
181 |
// quiet compiler |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
182 |
return "INVALID"; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
183 |
break; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
184 |
} |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
185 |
} |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
186 |
|
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
187 |
enum WifiPhy::State |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
188 |
WifiPhyStateHelper::GetState (void) |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
189 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
190 |
if (m_endTx > Simulator::Now ()) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
191 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
192 |
return WifiPhy::TX; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
193 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
194 |
else if (m_syncing) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
195 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
196 |
return WifiPhy::SYNC; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
197 |
} |
5189 | 198 |
else if (m_endSwitching > Simulator::Now ()) |
199 |
{ |
|
200 |
return WifiPhy::SWITCHING; |
|
201 |
} |
|
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
202 |
else if (m_endCcaBusy > Simulator::Now ()) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
203 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
204 |
return WifiPhy::CCA_BUSY; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
205 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
206 |
else |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
207 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
208 |
return WifiPhy::IDLE; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
209 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
210 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
211 |
|
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
212 |
|
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
213 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
214 |
WifiPhyStateHelper::NotifyTxStart (Time duration) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
215 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
216 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
217 |
(*i)->NotifyTxStart (duration); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
218 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
219 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
220 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
221 |
WifiPhyStateHelper::NotifySyncStart (Time duration) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
222 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
223 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
224 |
(*i)->NotifyRxStart (duration); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
225 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
226 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
227 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
228 |
WifiPhyStateHelper::NotifySyncEndOk (void) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
229 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
230 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
231 |
(*i)->NotifyRxEndOk (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
232 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
233 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
234 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
235 |
WifiPhyStateHelper::NotifySyncEndError (void) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
236 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
237 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
238 |
(*i)->NotifyRxEndError (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
239 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
240 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
241 |
void |
3905
99c9346b5d71
split interference calculation from YansWifiPhy. Move them to InterferenceHelper
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
3900
diff
changeset
|
242 |
WifiPhyStateHelper::NotifyMaybeCcaBusyStart (Time duration) |
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
243 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
244 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
3905
99c9346b5d71
split interference calculation from YansWifiPhy. Move them to InterferenceHelper
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
3900
diff
changeset
|
245 |
(*i)->NotifyMaybeCcaBusyStart (duration); |
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
246 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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|
247 |
} |
5189 | 248 |
void |
249 |
WifiPhyStateHelper::NotifySwitchingStart (Time duration) |
|
250 |
{ |
|
251 |
for (Listeners::const_iterator i = m_listeners.begin (); i != m_listeners.end (); i++) { |
|
252 |
(*i)->NotifySwitchingStart (duration); |
|
253 |
} |
|
254 |
} |
|
3897
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parents:
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changeset
|
255 |
|
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parents:
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|
256 |
void |
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parents:
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changeset
|
257 |
WifiPhyStateHelper::LogPreviousIdleAndCcaBusyStates (void) |
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parents:
diff
changeset
|
258 |
{ |
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parents:
diff
changeset
|
259 |
Time now = Simulator::Now (); |
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parents:
diff
changeset
|
260 |
Time idleStart = Max (m_endCcaBusy, m_endSync); |
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parents:
diff
changeset
|
261 |
idleStart = Max (idleStart, m_endTx); |
5189 | 262 |
idleStart = Max (idleStart, m_endSwitching); |
3897
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parents:
diff
changeset
|
263 |
NS_ASSERT (idleStart <= now); |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
264 |
if (m_endCcaBusy > m_endSync && |
5189 | 265 |
m_endCcaBusy > m_endSwitching && |
3897
44645cec42f2
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parents:
diff
changeset
|
266 |
m_endCcaBusy > m_endTx) { |
44645cec42f2
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parents:
diff
changeset
|
267 |
Time ccaBusyStart = Max (m_endTx, m_endSync); |
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parents:
diff
changeset
|
268 |
ccaBusyStart = Max (ccaBusyStart, m_startCcaBusy); |
5189 | 269 |
ccaBusyStart = Max (ccaBusyStart, m_endSwitching); |
3897
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parents:
diff
changeset
|
270 |
m_stateLogger (ccaBusyStart, idleStart - ccaBusyStart, WifiPhy::CCA_BUSY); |
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parents:
diff
changeset
|
271 |
} |
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parents:
diff
changeset
|
272 |
m_stateLogger (idleStart, now - idleStart, WifiPhy::IDLE); |
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parents:
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changeset
|
273 |
} |
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parents:
diff
changeset
|
274 |
|
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parents:
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changeset
|
275 |
void |
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parents:
diff
changeset
|
276 |
WifiPhyStateHelper::SwitchToTx (Time txDuration, Ptr<const Packet> packet, WifiMode txMode, |
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parents:
diff
changeset
|
277 |
WifiPreamble preamble, uint8_t txPower) |
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parents:
diff
changeset
|
278 |
{ |
44645cec42f2
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parents:
diff
changeset
|
279 |
m_txTrace (packet, txMode, preamble, txPower); |
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parents:
diff
changeset
|
280 |
NotifyTxStart (txDuration); |
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parents:
diff
changeset
|
281 |
Time now = Simulator::Now (); |
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parents:
diff
changeset
|
282 |
switch (GetState ()) { |
44645cec42f2
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parents:
diff
changeset
|
283 |
case WifiPhy::SYNC: |
44645cec42f2
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parents:
diff
changeset
|
284 |
/* The packet which is being received as well |
44645cec42f2
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parents:
diff
changeset
|
285 |
* as its endSync event are cancelled by the caller. |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
286 |
*/ |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
287 |
m_syncing = false; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
288 |
m_stateLogger (m_startSync, now - m_startSync, WifiPhy::SYNC); |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
289 |
m_endSync = now; |
44645cec42f2
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parents:
diff
changeset
|
290 |
break; |
44645cec42f2
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parents:
diff
changeset
|
291 |
case WifiPhy::CCA_BUSY: { |
44645cec42f2
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parents:
diff
changeset
|
292 |
Time ccaStart = Max (m_endSync, m_endTx); |
44645cec42f2
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parents:
diff
changeset
|
293 |
ccaStart = Max (ccaStart, m_startCcaBusy); |
5189 | 294 |
ccaStart = Max (ccaStart, m_endSwitching); |
3897
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
295 |
m_stateLogger (ccaStart, now - ccaStart, WifiPhy::CCA_BUSY); |
44645cec42f2
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parents:
diff
changeset
|
296 |
} break; |
44645cec42f2
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parents:
diff
changeset
|
297 |
case WifiPhy::IDLE: |
44645cec42f2
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parents:
diff
changeset
|
298 |
LogPreviousIdleAndCcaBusyStates (); |
44645cec42f2
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parents:
diff
changeset
|
299 |
break; |
5189 | 300 |
case WifiPhy::SWITCHING: |
3897
44645cec42f2
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parents:
diff
changeset
|
301 |
default: |
44645cec42f2
split state management in a helper class
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parents:
diff
changeset
|
302 |
NS_ASSERT (false); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
303 |
break; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
304 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
305 |
m_stateLogger (now, txDuration, WifiPhy::TX); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
306 |
m_previousStateChangeTime = now; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
307 |
m_endTx = now + txDuration; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
308 |
m_startTx = now; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
309 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
310 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
311 |
WifiPhyStateHelper::SwitchToSync (Time rxDuration) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
312 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
313 |
NS_ASSERT (IsStateIdle () || IsStateCcaBusy ()); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
314 |
NS_ASSERT (!m_syncing); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
315 |
NotifySyncStart (rxDuration); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
316 |
Time now = Simulator::Now (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
317 |
switch (GetState ()) { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
318 |
case WifiPhy::IDLE: |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
319 |
LogPreviousIdleAndCcaBusyStates (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
320 |
break; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
321 |
case WifiPhy::CCA_BUSY: { |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
322 |
Time ccaStart = Max (m_endSync, m_endTx); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
323 |
ccaStart = Max (ccaStart, m_startCcaBusy); |
5189 | 324 |
ccaStart = Max (ccaStart, m_endSwitching); |
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
325 |
m_stateLogger (ccaStart, now - ccaStart, WifiPhy::CCA_BUSY); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
326 |
} break; |
5189 | 327 |
case WifiPhy::SWITCHING: |
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
328 |
case WifiPhy::SYNC: |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
329 |
case WifiPhy::TX: |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
330 |
NS_ASSERT (false); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
331 |
break; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
332 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
333 |
m_previousStateChangeTime = now; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
334 |
m_syncing = true; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
335 |
m_startSync = now; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
336 |
m_endSync = now + rxDuration; |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
337 |
NS_ASSERT (IsStateSync ()); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
338 |
} |
5189 | 339 |
|
340 |
void |
|
341 |
WifiPhyStateHelper::SwitchToChannelSwitching (Time switchingDuration) |
|
342 |
{ |
|
343 |
NotifySwitchingStart (switchingDuration); |
|
344 |
Time now = Simulator::Now (); |
|
345 |
switch (GetState ()) { |
|
346 |
case WifiPhy::SYNC: |
|
347 |
/* The packet which is being received as well |
|
348 |
* as its endSync event are cancelled by the caller. |
|
349 |
*/ |
|
350 |
m_syncing = false; |
|
351 |
m_stateLogger (m_startSync, now - m_startSync, WifiPhy::SYNC); |
|
352 |
m_endSync = now; |
|
353 |
break; |
|
354 |
case WifiPhy::CCA_BUSY: { |
|
355 |
Time ccaStart = Max (m_endSync, m_endTx); |
|
356 |
ccaStart = Max (ccaStart, m_startCcaBusy); |
|
357 |
ccaStart = Max (ccaStart, m_endSwitching); |
|
358 |
m_stateLogger (ccaStart, now - ccaStart, WifiPhy::CCA_BUSY); |
|
359 |
} break; |
|
360 |
case WifiPhy::IDLE: |
|
361 |
LogPreviousIdleAndCcaBusyStates (); |
|
362 |
break; |
|
363 |
case WifiPhy::TX: |
|
364 |
case WifiPhy::SWITCHING: |
|
365 |
default: |
|
366 |
NS_ASSERT (false); |
|
367 |
break; |
|
368 |
} |
|
369 |
||
370 |
if (now < m_endCcaBusy) |
|
371 |
{ |
|
372 |
m_endCcaBusy = now; |
|
373 |
} |
|
374 |
||
375 |
m_stateLogger (now, switchingDuration, WifiPhy::SWITCHING); |
|
376 |
m_previousStateChangeTime = now; |
|
377 |
m_startSwitching = now; |
|
378 |
m_endSwitching = now + switchingDuration; |
|
379 |
NS_ASSERT (IsStateSwitching ()); |
|
380 |
} |
|
381 |
||
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
382 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
383 |
WifiPhyStateHelper::SwitchFromSyncEndOk (Ptr<Packet> packet, double snr, WifiMode mode, enum WifiPreamble preamble) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
384 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
385 |
m_rxOkTrace (packet, snr, mode, preamble); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
386 |
NotifySyncEndOk (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
387 |
DoSwitchFromSync (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
388 |
if (!m_syncOkCallback.IsNull ()) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
389 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
390 |
m_syncOkCallback (packet, snr, mode, preamble); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
391 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
392 |
|
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
393 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
394 |
void |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
395 |
WifiPhyStateHelper::SwitchFromSyncEndError (Ptr<const Packet> packet, double snr) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
396 |
{ |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
397 |
m_rxErrorTrace (packet, snr); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
398 |
NotifySyncEndError (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
399 |
DoSwitchFromSync (); |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
400 |
if (!m_syncErrorCallback.IsNull ()) |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
401 |
{ |
3899 | 402 |
m_syncErrorCallback (packet, snr); |
3897
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
403 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
404 |
} |
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
405 |
|
44645cec42f2
split state management in a helper class
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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406 |
void |
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407 |
WifiPhyStateHelper::DoSwitchFromSync (void) |
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parents:
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|
408 |
{ |
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parents:
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|
409 |
NS_ASSERT (IsStateSync ()); |
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parents:
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|
410 |
NS_ASSERT (m_syncing); |
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parents:
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changeset
|
411 |
|
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parents:
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|
412 |
Time now = Simulator::Now (); |
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parents:
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|
413 |
m_stateLogger (m_startSync, now - m_startSync, WifiPhy::SYNC); |
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parents:
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changeset
|
414 |
m_previousStateChangeTime = now; |
44645cec42f2
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parents:
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|
415 |
m_syncing = false; |
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
416 |
|
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parents:
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changeset
|
417 |
NS_ASSERT (IsStateIdle () || IsStateCcaBusy ()); |
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parents:
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|
418 |
} |
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parents:
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changeset
|
419 |
void |
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parents:
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changeset
|
420 |
WifiPhyStateHelper::SwitchMaybeToCcaBusy (Time duration) |
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parents:
diff
changeset
|
421 |
{ |
3905
99c9346b5d71
split interference calculation from YansWifiPhy. Move them to InterferenceHelper
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
3900
diff
changeset
|
422 |
NotifyMaybeCcaBusyStart (duration); |
3897
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parents:
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changeset
|
423 |
Time now = Simulator::Now (); |
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parents:
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changeset
|
424 |
switch (GetState ()) { |
5189 | 425 |
case WifiPhy::SWITCHING: |
426 |
break; |
|
3897
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parents:
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changeset
|
427 |
case WifiPhy::IDLE: |
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parents:
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|
428 |
LogPreviousIdleAndCcaBusyStates (); |
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parents:
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changeset
|
429 |
break; |
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parents:
diff
changeset
|
430 |
case WifiPhy::CCA_BUSY: |
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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changeset
|
431 |
break; |
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
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changeset
|
432 |
case WifiPhy::SYNC: |
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parents:
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changeset
|
433 |
break; |
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parents:
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changeset
|
434 |
case WifiPhy::TX: |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
435 |
break; |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
436 |
} |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
437 |
m_startCcaBusy = now; |
3905
99c9346b5d71
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
3900
diff
changeset
|
438 |
m_endCcaBusy = std::max (m_endCcaBusy, now + duration); |
3897
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
439 |
} |
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
440 |
|
44645cec42f2
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
441 |
} // namespace ns3 |