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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Implementation of MS drive state watcher |
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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 @internalTechnology |
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21 */ |
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22 |
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23 #include "t_ms_main.h" |
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24 #include "cpropertywatch.h" |
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25 #include "cstatemachine.h" |
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26 |
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27 LOCAL_D TInt testedDriveIndex = -1; |
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28 |
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29 /////////////////////////////////////////////////////////////////////////// |
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30 // class CPropertyWatch |
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31 /////////////////////////////////////////////////////////////////////////// |
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32 |
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33 CPropertyWatch* CPropertyWatch::NewLC(TUsbMsDriveState_Subkey aSubkey, CPropertyHandler& aHandler) |
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34 { |
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35 CPropertyWatch* me=new(ELeave) CPropertyWatch(aHandler); |
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36 CleanupStack::PushL(me); |
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37 me->ConstructL(aSubkey); |
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38 return me; |
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39 } |
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40 |
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41 CPropertyWatch::CPropertyWatch(CPropertyHandler& aHandler) |
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42 : CActive(0), iHandler(aHandler) |
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43 {} |
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44 |
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45 void CPropertyWatch::ConstructL(TUsbMsDriveState_Subkey aSubkey) |
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46 { |
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47 User::LeaveIfError(iProperty.Attach(KUsbMsDriveState_Category, aSubkey)); |
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48 CActiveScheduler::Add(this); |
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49 // initial subscription and process current property value |
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50 RunL(); |
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51 } |
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52 |
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53 CPropertyWatch::~CPropertyWatch() |
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54 { |
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55 Cancel(); |
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56 iProperty.Close(); |
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57 } |
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58 |
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59 void CPropertyWatch::DoCancel() |
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60 { |
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61 iProperty.Cancel(); |
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62 } |
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63 |
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64 void CPropertyWatch::RunL() |
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65 { |
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66 // resubscribe before processing new value to prevent missing updates |
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67 iProperty.Subscribe(iStatus); |
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68 iHandler.HandleStatusChange(iProperty); |
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69 SetActive(); |
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70 } |
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71 |
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72 /////////////////////////////////////////////////////////////////////////// |
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73 // class CPropertyHandler |
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74 /////////////////////////////////////////////////////////////////////////// |
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75 |
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76 CPropertyHandler::CPropertyHandler(TInt aDriveNo, CStateMachine& aSm) |
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77 : iDriveNo(aDriveNo) |
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78 , iStateMachine(aSm) |
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79 { |
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80 } |
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81 |
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82 CPropertyHandler::~CPropertyHandler() |
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83 { |
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84 } |
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85 |
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86 /////////////////////////////////////////////////////////////////////////// |
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87 // class CMsDriveStatusHandler |
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88 /////////////////////////////////////////////////////////////////////////// |
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89 |
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90 CMsDriveStatusHandler* |
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91 CMsDriveStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm) |
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92 { |
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93 CMsDriveStatusHandler* self = new (ELeave) CMsDriveStatusHandler(aDriveNo, aSm); |
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94 CleanupStack::PushL(self); |
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95 return self; |
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96 }; |
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97 |
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98 CMsDriveStatusHandler::CMsDriveStatusHandler(TInt aDriveNo, CStateMachine& aSm) |
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99 : CPropertyHandler(aDriveNo, aSm) |
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100 { |
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101 } |
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102 |
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103 void |
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104 CMsDriveStatusHandler::HandleStatusChange(RProperty& aProperty) |
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105 { |
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106 TInt driveStatus = -1; |
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107 TInt currentStatus = iStateMachine.CurrentStateId(); |
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108 TBuf8<16> allDrivesStatus; |
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109 TInt ret = aProperty.Get(allDrivesStatus); |
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110 test.Printf(_L("Property.Get() return value: %d\n"), ret); |
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111 test(ret == KErrNone); |
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112 |
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113 if (testedDriveIndex < 0) |
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114 { |
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115 for(TInt i=0; i<allDrivesStatus.Length()/2; i++) |
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116 { |
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117 if (allDrivesStatus[2*i] == iDriveNo) |
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118 { |
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119 testedDriveIndex = i; |
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120 break; |
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121 } |
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122 } |
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123 } |
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124 |
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125 if (testedDriveIndex < 0) |
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126 { |
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127 test.Printf(_L("Tested drive %d not found\n"), iDriveNo); |
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128 test(EFalse); |
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129 } |
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130 |
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131 driveStatus = allDrivesStatus[2*testedDriveIndex + 1]; |
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132 |
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133 switch (currentStatus) |
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134 { |
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135 case EUsbMsDriveState_Disconnected: |
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136 if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected) |
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137 { |
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138 iStateMachine.MoveTo(EUsbMsDriveState_Connected); |
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139 iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnected); |
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140 } |
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141 else if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnecting) |
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142 { |
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143 test(driveStatus == currentStatus); |
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144 iStateMachine.MoveTo(EUsbMsDriveState_Connecting); |
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145 iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnected); |
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146 } |
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147 else if (iStateMachine.FromStateId() == EUsbMsState_Read) |
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148 { |
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149 CActiveScheduler::Stop(); |
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150 } |
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151 break; |
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152 case EUsbMsDriveState_Connecting: |
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153 if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected) |
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154 { |
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155 iStateMachine.MoveTo(EUsbMsState_Written); |
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156 iStateMachine.SetFromStateId(EUsbMsDriveState_Connecting); |
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157 } |
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158 break; |
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159 case EUsbMsDriveState_Connected: |
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160 if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected) |
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161 { |
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162 test(driveStatus == currentStatus); |
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163 iStateMachine.MoveTo(EUsbMsDriveState_Active); |
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164 iStateMachine.SetFromStateId(EUsbMsDriveState_Connected); |
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165 } |
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166 break; |
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167 case EUsbMsDriveState_Disconnecting: |
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168 if (iStateMachine.FromStateId() == EUsbMsDriveState_Active) |
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169 { |
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170 test(driveStatus == currentStatus); |
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171 iStateMachine.MoveTo(EUsbMsDriveState_Disconnected); |
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172 iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnecting); |
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173 } |
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174 |
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175 break; |
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176 case EUsbMsDriveState_Active: |
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177 if (iStateMachine.FromStateId() == EUsbMsDriveState_Connected) |
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178 { |
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179 test(driveStatus == currentStatus); |
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180 iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting); |
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181 iStateMachine.SetFromStateId(EUsbMsDriveState_Active); |
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182 } |
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183 break; |
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184 case EUsbMsDriveState_Locked: |
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185 iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting); |
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186 break; |
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187 default: |
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188 test.Printf(_L("uninteresting drive status: %d\n"), currentStatus); |
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189 break; |
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190 } |
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191 } |
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192 |
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193 /////////////////////////////////////////////////////////////////////////// |
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194 // class CMsReadStatusHandler |
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195 /////////////////////////////////////////////////////////////////////////// |
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196 |
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197 CMsReadStatusHandler* |
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198 CMsReadStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm) |
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199 { |
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200 CMsReadStatusHandler* self = new (ELeave) CMsReadStatusHandler(aDriveNo, aSm); |
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201 CleanupStack::PushL(self); |
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202 return self; |
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203 }; |
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204 |
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205 CMsReadStatusHandler::CMsReadStatusHandler(TInt aDriveNo, CStateMachine& aSm) |
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206 : CPropertyHandler(aDriveNo, aSm) |
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207 { |
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208 } |
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209 |
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210 void |
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211 CMsReadStatusHandler::HandleStatusChange(RProperty& aProperty) |
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212 { |
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213 TInt currentStatus = iStateMachine.CurrentStateId(); |
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214 TUsbMsBytesTransferred kBytes; |
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215 |
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216 TInt ret = aProperty.Get(kBytes); |
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217 test.Printf(_L("Read Property.Get() return value: %d\n"), ret); |
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218 test(ret == KErrNone); |
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219 |
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220 switch (currentStatus) |
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221 { |
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222 case EUsbMsState_Read: |
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223 if (iStateMachine.FromStateId() == EUsbMsState_Written |
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224 && (1 == kBytes[testedDriveIndex])) |
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225 { |
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226 iStateMachine.MoveTo(EUsbMsDriveState_Disconnected); |
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227 iStateMachine.SetFromStateId(EUsbMsState_Read); |
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228 } |
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229 break; |
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230 case EUsbMsDriveState_Active: |
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231 if (iStateMachine.FromStateId() == EUsbMsDriveState_Connected) |
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232 { |
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233 iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting); |
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234 iStateMachine.SetFromStateId(EUsbMsDriveState_Active); |
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235 } |
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236 break; |
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237 default: |
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238 test.Printf(_L("uninteresting read status: %d\n"), currentStatus); |
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239 break; |
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240 } |
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241 } |
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242 |
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243 /////////////////////////////////////////////////////////////////////////// |
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244 // class CMsWrittenStatusHandler |
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245 /////////////////////////////////////////////////////////////////////////// |
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246 |
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247 CMsWrittenStatusHandler* |
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248 CMsWrittenStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm) |
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249 { |
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250 CMsWrittenStatusHandler* self = new (ELeave) CMsWrittenStatusHandler(aDriveNo, aSm); |
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251 CleanupStack::PushL(self); |
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252 return self; |
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253 }; |
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254 |
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255 CMsWrittenStatusHandler::CMsWrittenStatusHandler(TInt aDriveNo, CStateMachine& aSm) |
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256 : CPropertyHandler(aDriveNo, aSm) |
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257 { |
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258 } |
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259 |
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260 void |
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261 CMsWrittenStatusHandler::HandleStatusChange(RProperty& aProperty) |
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262 { |
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263 TInt currentStatus = iStateMachine.CurrentStateId(); |
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264 TUsbMsBytesTransferred kBytes; |
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265 |
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266 TInt ret = aProperty.Get(kBytes); |
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267 test.Printf(_L("Written Property.Get() return value: %d\n"), ret); |
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268 test(ret == KErrNone); |
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269 test.Printf(_L("Kilobytes written: %d\n"), kBytes[testedDriveIndex]); |
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270 |
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271 switch (currentStatus) |
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272 { |
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273 case EUsbMsState_Written: |
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274 if (iStateMachine.FromStateId() == EUsbMsDriveState_Connecting && |
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275 kBytes[testedDriveIndex] == 1) |
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276 { |
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277 iStateMachine.MoveTo(EUsbMsState_Read); |
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278 iStateMachine.SetFromStateId(EUsbMsState_Written); |
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279 } |
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280 break; |
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281 default: |
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282 test.Printf(_L("uninteresting write status: %d\n"), currentStatus); |
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283 break; |
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284 } |
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285 } |