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1 /* |
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2 * Copyright (c) 2008-2009 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: |
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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 @file |
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20 @internalComponent |
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21 */ |
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22 |
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23 #include "msmmclient.h" |
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24 #include <usb/usblogger.h> |
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25 |
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26 #include <e32cmn.h> |
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27 |
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28 #include "srvdef.h" |
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29 |
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30 #ifdef __FLOG_ACTIVE |
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31 _LIT8(KLogComponent, "UsbHostMsmmClient"); |
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32 #endif |
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33 |
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34 // Costants |
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35 const TInt KConnectRetry = 0x2; |
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36 |
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37 //--------------------------------------------------------------------------- |
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38 // |
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39 // NON-MEMBER FUNCTIONS |
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40 |
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41 static TInt StartServer() |
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42 { |
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43 LOG_STATIC_FUNC_ENTRY |
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44 |
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45 TInt ret = KErrNone; |
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46 |
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47 // Create the server process |
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48 const TUidType serverUid(KNullUid, KNullUid, KMsmmServUid); |
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49 RProcess server; |
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50 _LIT(KNullCommand,""); |
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51 ret = server.Create(KMsmmServerBinaryName, KNullCommand, serverUid); |
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52 |
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53 // Was server process created OK? |
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54 if (KErrNone != ret) |
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55 { |
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56 return ret; |
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57 } |
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58 |
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59 // Set up Rendezvous so that server thread can signal correct startup |
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60 TRequestStatus serverDiedRequestStatus; |
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61 server.Rendezvous(serverDiedRequestStatus); |
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62 |
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63 // Status flag should still be pending as we haven't |
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64 // resumed the server yet! |
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65 if (serverDiedRequestStatus != KRequestPending) |
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66 { |
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67 server.Kill(0); // abort the startup here |
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68 } |
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69 else |
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70 { |
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71 server.Resume(); // start server |
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72 } |
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73 |
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74 User::WaitForRequest(serverDiedRequestStatus); |
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75 |
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76 // determine the reason for the server exit |
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77 TInt exitReason = (EExitPanic == server.ExitType()) ? |
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78 KErrGeneral : serverDiedRequestStatus.Int(); |
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79 server.Close(); |
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80 return exitReason; |
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81 } |
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82 |
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83 //--------------------------------------------------------------------------- |
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84 // RMsmmSession |
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85 // |
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86 // Public member functions |
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87 |
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88 EXPORT_C TInt RMsmmSession::Connect() |
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89 { |
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90 LOG_FUNC |
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91 |
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92 TInt retry = KConnectRetry; // Attempt connect twice then give up |
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93 TInt ret(KErrNone); |
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94 FOREVER |
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95 { |
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96 ret = CreateSession(KMsmmServerName, Version(), KDefaultMessageSlots); |
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97 if ((KErrNotFound != ret) && (KErrServerTerminated != ret)) |
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98 { |
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99 break; |
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100 } |
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101 |
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102 if ((--retry) == 0) |
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103 { |
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104 break; |
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105 } |
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106 |
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107 ret = StartServer(); |
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108 if ((KErrNone != ret) && (KErrAlreadyExists != ret)) |
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109 { |
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110 break; |
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111 } |
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112 } |
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113 |
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114 if (KErrNone != ret) |
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115 { |
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116 LOGTEXT2(_L("Underlying error value = %d"), ret) |
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117 ret = KErrCouldNotConnect; |
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118 } |
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119 |
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120 return ret; |
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121 } |
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122 |
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123 EXPORT_C TInt RMsmmSession::Disconnect() |
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124 { |
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125 LOG_FUNC |
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126 |
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127 Close(); |
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128 return KErrNone; |
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129 } |
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130 |
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131 // Called to provide the version number of the server we require for this API |
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132 EXPORT_C TVersion RMsmmSession::Version() const |
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133 { |
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134 LOG_FUNC |
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135 |
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136 return TVersion(KMsmmServMajorVersionNumber, |
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137 KMsmmServMinorVersionNumber, |
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138 KMsmmServBuildVersionNumber); |
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139 } |
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140 |
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141 EXPORT_C TInt RMsmmSession::AddFunction( |
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142 const TUSBMSDeviceDescription& aDevice, |
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143 TUint8 aInterfaceNumber, TUint32 aInterfaceToken) |
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144 { |
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145 LOG_FUNC |
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146 |
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147 TInt ret(KErrNone); |
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148 |
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149 TIpcArgs usbmsIpcArgs; |
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150 iDevicePkg = aDevice; // Package the device description |
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151 usbmsIpcArgs.Set(0, &iDevicePkg); |
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152 usbmsIpcArgs.Set(1, aInterfaceNumber); |
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153 usbmsIpcArgs.Set(2, aInterfaceToken); |
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154 |
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155 ret = SendReceive(EHostMsmmServerAddFunction, usbmsIpcArgs); |
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156 |
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157 return ret; |
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158 } |
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159 |
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160 EXPORT_C TInt RMsmmSession::RemoveDevice(TUint aDevice) |
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161 { |
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162 LOG_FUNC |
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163 |
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164 TInt ret(KErrNone); |
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165 |
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166 TIpcArgs usbmsIpcArgs(aDevice); |
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167 |
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168 ret = SendReceive(EHostMsmmServerRemoveDevice, usbmsIpcArgs); |
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169 |
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170 return ret; |
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171 } |
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172 |
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173 EXPORT_C TInt RMsmmSession::__DbgFailNext(TInt aCount) |
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174 { |
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175 LOG_FUNC |
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176 |
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177 #ifdef _DEBUG |
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178 return SendReceive(EHostMsmmServerDbgFailNext, TIpcArgs(aCount)); |
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179 #else |
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180 (void)aCount; |
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181 return KErrNone; |
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182 #endif |
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183 } |
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184 |
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185 EXPORT_C TInt RMsmmSession::__DbgAlloc() |
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186 { |
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187 LOG_FUNC |
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188 |
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189 #ifdef _DEBUG |
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190 return SendReceive(EHostMsmmServerDbgAlloc); |
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191 #else |
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192 return KErrNone; |
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193 #endif |
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194 } |
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195 |
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196 // End of file |