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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Copies signals changes between network and local media |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifdef PRJ_USE_NETWORK_STUBS |
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20 #include <c32comm_stub.h> |
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21 #else |
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22 #include <d32comm.h> |
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23 #endif |
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24 #include "DunTransporter.h" |
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25 #include "DunSignalCopy.h" |
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26 #include "DunDebug.h" |
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27 |
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28 const TUint KDunSixLowestBitsMask = 0x3F; // Symbian magic |
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29 |
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30 // ======== MEMBER FUNCTIONS ======== |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // Two-phased constructor. |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 CDunSignalCopy* CDunSignalCopy::NewL() |
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37 { |
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38 CDunSignalCopy* self = new (ELeave) CDunSignalCopy(); |
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39 CleanupStack::PushL( self ); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop( self ); |
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42 return self; |
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43 } |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // Destructor |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CDunSignalCopy::~CDunSignalCopy() |
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50 { |
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51 FTRACE(FPrint( _L("CDunSignalCopy::~CDunSignalCopy()") )); |
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52 ResetData(); |
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53 FTRACE(FPrint( _L("CDunSignalCopy::~CDunSignalCopy() complete") )); |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // Resets data to initial values |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 void CDunSignalCopy::ResetData() |
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61 { |
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62 FTRACE(FPrint( _L("CDunSignalCopy::ResetData()") )); |
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63 // APIs affecting this: |
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64 // IssueRequest() |
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65 Stop(); |
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66 // AddCallback() |
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67 iCallbacks.Close(); |
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68 // AddWriteReadyCallback() |
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69 iERCallbacks.Close(); |
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70 // Internal |
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71 Initialize(); |
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72 FTRACE(FPrint( _L("CDunSignalCopy::ResetData() complete") )); |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Adds callback for line status change controlling |
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77 // The callback will be called when RunL error is detected |
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78 // --------------------------------------------------------------------------- |
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79 // |
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80 TInt CDunSignalCopy::AddCallback( MDunConnMon* aCallback ) |
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81 { |
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82 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback()" ) )); |
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83 if ( !aCallback ) |
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84 { |
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85 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (aCallback) not initialized!" ) )); |
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86 return KErrGeneral; |
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87 } |
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88 TInt retTemp = iCallbacks.Find( aCallback ); |
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89 if ( retTemp != KErrNotFound ) |
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90 { |
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91 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (already exists) complete" ) )); |
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92 return KErrAlreadyExists; |
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93 } |
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94 retTemp = iCallbacks.Append( aCallback ); |
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95 if ( retTemp != KErrNone ) |
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96 { |
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97 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (append failed!) complete" ) )); |
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98 return retTemp; |
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99 } |
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100 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() complete" ) )); |
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101 return KErrNone; |
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102 } |
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103 |
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104 // --------------------------------------------------------------------------- |
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105 // Adds callback for endpoint readiness |
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106 // The callback will be called when the endpoint is ready or not ready |
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107 // --------------------------------------------------------------------------- |
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108 // |
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109 TInt CDunSignalCopy::AddEndpointReadyCallback( MDunEndpointReady* aERCallback ) |
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110 { |
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111 FTRACE(FPrint( _L("CDunSignalCopy::AddEndpointReadyCallback()" ) )); |
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112 if ( !aERCallback ) |
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113 { |
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114 FTRACE(FPrint( _L("CDunSignalCopy::AddEndpointReadyCallback() (aERCallback) not initialized!" ) )); |
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115 return KErrGeneral; |
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116 } |
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117 TInt retTemp = iERCallbacks.Find( aERCallback ); |
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118 if ( retTemp != KErrNotFound ) |
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119 { |
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120 FTRACE(FPrint( _L("CDunSignalCopy::AddEndpointReadyCallback() (already exists) complete" ) )); |
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121 return KErrAlreadyExists; |
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122 } |
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123 retTemp = iERCallbacks.Append( aERCallback ); |
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124 if ( retTemp != KErrNone ) |
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125 { |
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126 FTRACE(FPrint( _L("CDunSignalCopy::AddEndpointReadyCallback() (append failed!) complete" ) )); |
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127 return retTemp; |
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128 } |
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129 FTRACE(FPrint( _L("CDunSignalCopy::AddEndpointReadyCallback() complete" ) )); |
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130 return KErrNone; |
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131 } |
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132 |
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133 // --------------------------------------------------------------------------- |
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134 // Sets media to use for this endpoint monitor |
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135 // --------------------------------------------------------------------------- |
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136 // |
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137 TInt CDunSignalCopy::SetMedia( RComm* aComm, |
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138 RComm* aNetwork, |
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139 TDunStreamType aStreamType ) |
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140 { |
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141 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia()" ))); |
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142 if ( !aNetwork ) |
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143 { |
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144 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (aComm) not initialized!" ))); |
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145 return KErrGeneral; |
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146 } |
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147 RComm* comm = NULL; |
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148 if ( aStreamType == EDunStreamTypeUpstream ) |
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149 { |
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150 iContextInUse = EDunMediaContextLocal; |
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151 comm = aComm; |
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152 } |
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153 else if ( aStreamType == EDunStreamTypeDownstream ) |
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154 { |
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155 iContextInUse = EDunMediaContextNetwork; |
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156 comm = aNetwork; |
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157 } |
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158 else |
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159 { |
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160 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (aStreamtype) not initialized!" ))); |
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161 return KErrGeneral; |
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162 } |
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163 // No possibility to do iUtility->GetLocalId() here as aComm is not yet |
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164 // in channel data; use aComm directly |
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165 TCommCaps2 caps; |
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166 comm->Caps( caps ); |
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167 if ( !(caps().iNotificationCaps & KNotifySignalsChangeSupported) ) |
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168 { |
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169 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (RComm) (not supported) complete" ))); |
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170 return KErrNotSupported; |
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171 } |
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172 iComm = aComm; |
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173 iNetwork = aNetwork; |
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174 iStreamType = aStreamType; |
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175 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (RComm) complete" ))); |
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176 return KErrNone; |
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177 } |
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178 |
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179 // --------------------------------------------------------------------------- |
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180 // Issues request to start monitoring the endpoint for line status change |
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181 // --------------------------------------------------------------------------- |
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182 // |
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183 TInt CDunSignalCopy::IssueRequest() |
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184 { |
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185 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest()" ))); |
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186 if ( iSignalCopyState != EDunStateIdle ) |
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187 { |
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188 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() (not ready) complete" ) )); |
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189 return KErrNotReady; |
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190 } |
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191 RComm* comm = NULL; |
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192 if ( iStreamType == EDunStreamTypeUpstream ) |
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193 { |
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194 iListenSignals = KSignalDCEInputs; |
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195 comm = iComm; |
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196 } |
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197 else if ( iStreamType == EDunStreamTypeDownstream ) |
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198 { |
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199 iListenSignals = KSignalDTEInputs; |
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200 comm = iNetwork; |
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201 } |
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202 else |
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203 { |
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204 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() (ERROR) complete" ) )); |
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205 return KErrGeneral; |
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206 } |
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207 TUint currentSignals = comm->Signals( iListenSignals ); |
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208 TUint oldSignalsLow = iSignals & KDunSixLowestBitsMask; |
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209 TUint newSignalsLow = currentSignals & KDunSixLowestBitsMask; |
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210 TUint oldSignalsHigh = oldSignalsLow * KSignalChanged; |
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211 TUint newSignalsHigh = newSignalsLow * KSignalChanged; |
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212 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() oldSignalsLow=0x%08X" ), oldSignalsLow )); |
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213 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() newSignalsLow=0x%08X" ), newSignalsLow )); |
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214 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() oldSignalsHigh=0x%08X" ), oldSignalsHigh )); |
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215 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() newSignalsHigh=0x%08X" ), newSignalsHigh )); |
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216 if ( newSignalsLow != oldSignalsLow ) |
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217 { |
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218 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() signals already set..." ) )); |
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219 iSignals = newSignalsLow | (oldSignalsHigh ^ newSignalsHigh); |
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220 ManageSignalChange(); |
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221 } |
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222 else |
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223 { |
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224 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() start waiting for change..." ) )); |
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225 iStatus = KRequestPending; |
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226 comm->NotifySignalChange( iStatus, iSignals, iListenSignals ); |
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227 SetActive(); |
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228 iSignalCopyState = EDunStateSignalCopy; |
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229 } |
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230 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() complete" ))); |
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231 return KErrNone; |
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232 } |
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233 |
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234 // --------------------------------------------------------------------------- |
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235 // Stops monitoring the endpoint for line status change |
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236 // --------------------------------------------------------------------------- |
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237 // |
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238 TInt CDunSignalCopy::Stop() |
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239 { |
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240 FTRACE(FPrint( _L("CDunSignalCopy::Stop()" ))); |
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241 if ( iSignalCopyState != EDunStateSignalCopy ) |
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242 { |
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243 FTRACE(FPrint( _L("CDunSignalCopy::Stop() (not ready) complete" ))); |
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244 return KErrNotReady; |
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245 } |
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246 if ( iStreamType == EDunStreamTypeUpstream ) |
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247 { |
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248 iComm->NotifySignalChangeCancel(); |
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249 } |
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250 else if ( iStreamType == EDunStreamTypeDownstream ) |
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251 { |
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252 iNetwork->NotifySignalChangeCancel(); |
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253 } |
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254 else |
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255 { |
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256 FTRACE(FPrint( _L("CDunSignalCopy::Stop() (ERROR) complete" ))); |
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257 return KErrGeneral; |
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258 } |
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259 Cancel(); |
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260 iSignalCopyState = EDunStateIdle; |
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261 FTRACE(FPrint( _L("CDunSignalCopy::Stop() complete" ))); |
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262 return KErrNone; |
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263 } |
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264 |
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265 // --------------------------------------------------------------------------- |
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266 // CDunSignalCopy::CDunSignalCopy |
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267 // --------------------------------------------------------------------------- |
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268 // |
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269 CDunSignalCopy::CDunSignalCopy() : |
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270 CActive( EPriorityHigh ) |
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271 { |
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272 Initialize(); |
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273 } |
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274 |
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275 // --------------------------------------------------------------------------- |
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276 // CDunSignalCopy::ConstructL |
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277 // --------------------------------------------------------------------------- |
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278 // |
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279 void CDunSignalCopy::ConstructL() |
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280 { |
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281 FTRACE(FPrint( _L("CDunSignalCopy::ConstructL()" ) )); |
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282 CActiveScheduler::Add( this ); |
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283 FTRACE(FPrint( _L("CDunSignalCopy::ConstructL() complete" ) )); |
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284 } |
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285 |
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286 // --------------------------------------------------------------------------- |
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287 // Initializes this class |
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288 // --------------------------------------------------------------------------- |
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289 // |
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290 void CDunSignalCopy::Initialize() |
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291 { |
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292 FTRACE(FPrint( _L("CDunSignalCopy::Initialize()" ) )); |
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293 iContextInUse = EDunMediaContextUndefined; |
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294 iStreamType = EDunStreamTypeUndefined; |
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295 iSignalCopyState = EDunStateIdle; |
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296 iListenSignals = 0; |
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297 iSignals = 0; |
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298 iNetwork = NULL; |
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299 iComm = NULL; |
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300 FTRACE(FPrint( _L("CDunSignalCopy::Initialize() complete" ) )); |
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301 } |
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302 |
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303 // --------------------------------------------------------------------------- |
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304 // Manages signal changes |
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305 // --------------------------------------------------------------------------- |
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306 // |
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307 void CDunSignalCopy::ManageSignalChange() |
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308 { |
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309 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChange()" ) )); |
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310 |
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311 if ( iStreamType == EDunStreamTypeUpstream ) |
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312 { |
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313 // Manage upstream case |
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314 ManageSignalChangeUpstream(); |
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315 } |
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316 else // iStreamType == EDunStreamTypeDownstream |
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317 { |
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318 // Manage downstream case |
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319 ManageSignalChangeDownstream(); |
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320 } |
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321 |
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322 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChange() complete" ) )); |
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323 } |
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324 |
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325 // --------------------------------------------------------------------------- |
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326 // Manages upstream signal changes |
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327 // --------------------------------------------------------------------------- |
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328 // |
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329 void CDunSignalCopy::ManageSignalChangeUpstream() |
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330 { |
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331 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream()" ) )); |
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332 // For upstream the following signals are set for local media: |
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333 // KSignalDCEInputs = KSignalRTS | KSignalDTR |
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334 if ( iSignals & KRTSChanged ) |
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335 { |
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336 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() checking RTS..." ) )); |
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337 if ( iSignals & KSignalRTS ) // RTS changed to high |
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338 { |
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339 ReportEndpointReady( ETrue ); |
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340 ChangeUpstreamSignal( KSignalRTS, 0 ); |
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341 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() RTS changed high" ) )); |
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342 } |
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343 else // RTS changed to low |
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344 { |
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345 ReportEndpointReady( EFalse ); |
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346 ChangeUpstreamSignal( 0, KSignalRTS ); |
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347 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() RTS changed low" ) )); |
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348 } |
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349 } |
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350 if ( iSignals & KDTRChanged ) |
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351 { |
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352 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() checking DTR..." ) )); |
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353 if ( iSignals & KSignalDTR ) // DTR changed to high |
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354 { |
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355 ChangeUpstreamSignal( KSignalDTR, 0 ); |
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356 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() DTR changed high" ) )); |
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357 } |
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358 else // DTR changed to low |
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359 { |
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360 ChangeUpstreamSignal( 0, KSignalDTR ); |
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361 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() DTR changed low" ) )); |
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362 } |
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363 } |
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364 IssueRequest(); |
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365 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() complete" ) )); |
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366 } |
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367 |
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368 // --------------------------------------------------------------------------- |
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369 // Manages downstream signal changes |
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370 // --------------------------------------------------------------------------- |
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371 // |
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372 void CDunSignalCopy::ManageSignalChangeDownstream() |
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373 { |
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374 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream()" ) )); |
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375 // For downstream the following signals are set for network: |
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376 // KSignalDTEInputs = KSignalCTS | KSignalDSR | KSignalDCD | KSignalRNG |
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377 if ( iSignals & KCTSChanged ) |
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378 { |
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379 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking CTS..." ) )); |
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380 if ( iSignals & KSignalCTS ) // CTS changed to high or initially high |
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381 { |
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382 ChangeDownstreamSignal( KSignalCTS, 0 ); |
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383 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() CTS changed high" ) )); |
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384 } |
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385 else // CTS changed to low |
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386 { |
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387 ChangeDownstreamSignal( 0, KSignalCTS ); |
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388 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() CTS changed low" ) )); |
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389 } |
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390 } |
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391 if ( iSignals & KDSRChanged ) |
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392 { |
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393 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking DSR..." ) )); |
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394 if ( iSignals & KSignalDSR ) // DSR changed to high |
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395 { |
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396 ChangeDownstreamSignal( KSignalDSR, 0 ); |
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397 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DSR changed high" ) )); |
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398 } |
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399 else // DSR changed to low |
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400 { |
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401 ChangeDownstreamSignal( 0, KSignalDSR ); |
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402 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DSR changed low" ) )); |
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403 } |
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404 } |
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405 if ( iSignals & KDCDChanged ) |
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406 { |
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407 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking DCD..." ) )); |
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408 if ( iSignals & KSignalDCD ) // DCD changed to high |
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409 { |
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410 ChangeDownstreamSignal( KSignalDCD, 0 ); |
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411 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DCD changed high" ) )); |
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412 } |
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413 else // DCD changed to low |
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414 { |
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415 ChangeDownstreamSignal( 0, KSignalDCD ); |
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416 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DCD changed low" ) )); |
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417 } |
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418 } |
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419 if ( iSignals & KRNGChanged ) |
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420 { |
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421 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking RNG..." ) )); |
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422 if ( iSignals & KSignalRNG ) // RNG changed to high |
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423 { |
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424 ChangeDownstreamSignal( KSignalRNG, 0 ); |
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425 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() RNG changed high" ) )); |
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426 } |
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427 else // RNG changed to low |
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428 { |
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429 ChangeDownstreamSignal( 0, KSignalRNG ); |
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430 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() RNG changed low" ) )); |
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431 } |
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432 } |
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433 IssueRequest(); |
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434 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() complete" ) )); |
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435 } |
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436 |
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437 // --------------------------------------------------------------------------- |
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438 // Changes upstream signal |
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439 // --------------------------------------------------------------------------- |
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440 // |
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441 void CDunSignalCopy::ChangeUpstreamSignal( TUint aSetMask, TUint aClearMask ) |
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442 { |
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443 FTRACE(FPrint( _L("CDunSignalCopy::ChangeUpstreamSignal()" ) )); |
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444 if ( iNetwork ) |
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445 { |
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446 iNetwork->SetSignals( aSetMask, aClearMask ); |
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447 } |
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448 // Add other cases here if necessary |
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449 FTRACE(FPrint( _L("CDunSignalCopy::ChangeUpstreamSignal() complete" ) )); |
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450 } |
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451 |
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452 // --------------------------------------------------------------------------- |
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453 // Changes downstream signal |
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454 // --------------------------------------------------------------------------- |
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455 // |
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456 void CDunSignalCopy::ChangeDownstreamSignal( TUint aSetMask, TUint aClearMask ) |
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457 { |
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458 FTRACE(FPrint( _L("CDunSignalCopy::ChangeDownstreamSignal()" ) )); |
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459 if ( iComm ) |
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460 { |
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461 iComm->SetSignals( aSetMask, aClearMask ); |
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462 } |
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463 // Add other cases here if necessary |
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464 FTRACE(FPrint( _L("CDunSignalCopy::ChangeDownstreamSignal() complete" ) )); |
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465 } |
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466 |
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467 // --------------------------------------------------------------------------- |
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468 // Reports endpoint ready or not ready |
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469 // --------------------------------------------------------------------------- |
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470 // |
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471 void CDunSignalCopy::ReportEndpointReady( TBool aReady ) |
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472 { |
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473 FTRACE(FPrint( _L("CDunSignalCopy::ReportEndpointReady()" ) )); |
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474 TInt count = iERCallbacks.Count(); |
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475 for ( TInt i=0; i<count; i++ ) |
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476 { |
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477 if ( aReady ) |
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478 { |
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479 iERCallbacks[i]->NotifyEndpointReady(); |
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480 } |
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481 else // not ready |
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482 { |
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483 iERCallbacks[i]->NotifyEndpointNotReady(); |
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484 } |
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485 } |
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486 FTRACE(FPrint( _L("CDunSignalCopy::ReportEndpointReady() complete" ) )); |
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487 } |
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488 |
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489 // --------------------------------------------------------------------------- |
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490 // From class CActive. |
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491 // Gets called when line status changes |
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492 // --------------------------------------------------------------------------- |
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493 // |
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494 void CDunSignalCopy::RunL() |
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495 { |
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496 FTRACE(FPrint( _L("CDunSignalCopy::RunL()" ) )); |
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497 iSignalCopyState = EDunStateIdle; |
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498 TInt retTemp = iStatus.Int(); |
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499 if ( retTemp != KErrNone ) |
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500 { |
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501 FTRACE(FPrint( _L("CDunSignalCopy::RunL() (failed) complete (%d)"), retTemp)); |
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502 TInt i; |
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503 TInt count = iCallbacks.Count(); |
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504 TDunConnectionReason connReason; |
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505 connReason.iReasonType = EDunReasonTypeRunL; |
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506 connReason.iContext = iContextInUse; |
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507 connReason.iSignalType = 0; |
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508 connReason.iSignalHigh = EFalse; |
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509 connReason.iDirection = EDunDirectionUndefined; |
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510 connReason.iErrorCode = retTemp; |
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511 for ( i=0; i<count; i++ ) |
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512 { |
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513 TRAP_IGNORE( |
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514 iCallbacks[i]->NotifyProgressChangeL( iComm, connReason ) ); |
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515 } |
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516 return; |
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517 } |
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518 FTRACE(FPrint( _L("CDunSignalCopy::RunL() managing signal 0x%08X" ), iSignals )); |
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519 ManageSignalChange(); |
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520 FTRACE(FPrint( _L("CDunSignalCopy::RunL() complete" ) )); |
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521 } |
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522 |
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523 // --------------------------------------------------------------------------- |
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524 // From class CActive. |
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525 // Gets called on cancel |
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526 // --------------------------------------------------------------------------- |
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527 // |
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528 void CDunSignalCopy::DoCancel() |
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529 { |
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530 } |