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1 // Copyright (c) 2006-2009 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 "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 // |
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15 |
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16 #include <mtp/cmtpdataproviderplugin.h> |
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17 #include <mtp/mmtpdataproviderframework.h> |
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18 #include <mtp/mtpprotocolconstants.h> |
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19 #include <mtp/mtpdataproviderapitypes.h> |
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20 |
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21 #include "cmtpdataprovider.h" |
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22 #include "cmtpdataprovidercontroller.h" |
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23 #include "cmtpframeworkconfig.h" |
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24 #include "cmtpstoragemgr.h" |
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25 #include "cmtpobjectmgr.h" |
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26 #include "cmtpstoragewatcher.h" |
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27 #include "rmtpdevicedpsingletons.h" |
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28 #include "cmtpdevicedpconfigmgr.h" |
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29 |
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30 |
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31 // Class constants. |
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32 __FLOG_STMT(_LIT8(KComponent,"StorageWatcher");) |
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33 static const TBool KAllDrives(ETrue); |
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34 static const TBool KAvailableDrives(EFalse); |
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35 |
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36 const TInt KFolderExclusionGranularity = 8; |
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37 |
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38 /** |
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39 MTP system storage watcher factory method. |
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40 @return A pointer to an MTP system storage watcher object. Ownership IS |
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41 transfered. |
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42 @leave One of the system wide error codes, if a processing failure occurs. |
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43 */ |
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44 CMTPStorageWatcher* CMTPStorageWatcher::NewL(MMTPDataProviderFramework& aFramework) |
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45 { |
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46 CMTPStorageWatcher* self = new (ELeave) CMTPStorageWatcher(aFramework); |
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47 CleanupStack::PushL(self); |
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48 self->ConstructL(); |
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49 CleanupStack::Pop(self); |
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50 return self; |
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51 } |
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52 |
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53 /** |
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54 Destructor. |
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55 */ |
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56 CMTPStorageWatcher::~CMTPStorageWatcher() |
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57 { |
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58 __FLOG(_L8("~CMTPStorageWatcher - Entry")); |
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59 Cancel(); |
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60 delete iFolderExclusionList; |
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61 iDpSingletons.Close(); |
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62 iDrivesExcluded.Close(); |
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63 iFrameworkSingletons.Close(); |
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64 __FLOG(_L8("~CMTPStorageWatcher - Exit")); |
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65 __FLOG_CLOSE; |
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66 } |
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67 |
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68 void CMTPStorageWatcher::EnumerateStoragesL() |
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69 { |
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70 __FLOG(_L8("EnumerateStoragesL - Entry")); |
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71 |
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72 //Use Hash to replace it |
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73 AppendFolderExclusionListL(); |
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74 |
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75 // Retrieve the drive exclusion list. |
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76 iFrameworkSingletons.FrameworkConfig().GetValueL(CMTPFrameworkConfig::EExcludedStorageDrives, iDrivesExcluded); |
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77 iDrivesExcluded.Sort(); |
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78 |
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79 // Claim system storages ownership. |
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80 CMTPStorageMgr& mgr(iFrameworkSingletons.StorageMgr()); |
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81 mgr.SetFrameworkId(iFramework.DataProviderId()); |
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82 |
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83 /* |
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84 Enumerate the initial drive set. |
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85 |
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86 1. Enumerate each known drive as a physical storage. |
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87 */ |
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88 iDrivesConfig = DriveConfigurationL(KAllDrives); |
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89 CMTPStorageMetaData* storage = CMTPStorageMetaData::NewLC(); |
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90 storage->SetUint(CMTPStorageMetaData::EStorageSystemType, CMTPStorageMetaData::ESystemTypeDefaultFileSystem); |
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91 _LIT(KSuidTemplate, "?:"); |
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92 RBuf suid; |
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93 suid.CleanupClosePushL(); |
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94 suid.Assign((KSuidTemplate().AllocL())); |
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95 |
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96 for (TInt drive(0); (drive < KMaxDrives); drive++) |
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97 { |
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98 const TUint32 mask(1 << drive); |
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99 if (iDrivesConfig & mask) |
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100 { |
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101 TChar driveChar; |
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102 User::LeaveIfError(iFramework.Fs().DriveToChar(drive, driveChar)); |
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103 suid[0] = driveChar; |
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104 storage->SetDesCL(CMTPStorageMetaData::EStorageSuid, suid); |
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105 |
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106 TUint32 id(mgr.AllocatePhysicalStorageIdL(iFramework.DataProviderId(), *storage)); |
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107 mgr.SetDriveMappingL(static_cast<TDriveNumber>(drive), id); |
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108 } |
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109 } |
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110 |
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111 CleanupStack::PopAndDestroy(&suid); |
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112 CleanupStack::PopAndDestroy(storage); |
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113 |
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114 /* |
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115 2. If so configured, enumerate a single logical storage for each of |
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116 the available drives. |
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117 */ |
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118 if (iAllocateLogicalStorages) |
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119 { |
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120 iDrivesConfig = DriveConfigurationL(KAvailableDrives); |
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121 |
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122 for (TInt drive(0); (drive < KMaxDrives); drive++) |
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123 { |
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124 const TUint32 mask(1 << drive); |
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125 if (iDrivesConfig & mask) |
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126 { |
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127 StorageAvailableL(static_cast<TDriveNumber>(drive)); |
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128 } |
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129 } |
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130 } |
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131 |
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132 // Set the default storage. |
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133 TUint defaultDrive; |
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134 iFrameworkSingletons.FrameworkConfig().GetValueL(CMTPFrameworkConfig::EDefaultStorageDrive, defaultDrive); |
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135 |
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136 if ( defaultDrive <= EDriveZ ) |
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137 { |
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138 // Default drive is specified by drive number.. retrieve from manager.. |
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139 if (iAllocateLogicalStorages) |
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140 { |
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141 mgr.SetDefaultStorageId(mgr.FrameworkStorageId(static_cast<TDriveNumber>(defaultDrive))); |
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142 } |
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143 else |
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144 { |
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145 mgr.SetDefaultStorageId(mgr.PhysicalStorageId(static_cast<TDriveNumber>(defaultDrive))); |
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146 } |
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147 } |
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148 else |
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149 { |
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150 // Default drive is specified by storage number |
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151 mgr.SetDefaultStorageId(defaultDrive); |
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152 } |
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153 |
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154 __FLOG(_L8("EnumerateStoragesL - Exit")); |
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155 } |
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156 |
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157 /** |
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158 Initiates storage change notice subscription. |
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159 */ |
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160 void CMTPStorageWatcher::Start() |
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161 { |
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162 __FLOG(_L8("Start - Entry")); |
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163 if (!(iState & EStarted)) |
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164 { |
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165 __FLOG(_L8("Starting RFs notifier")); |
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166 TRequestStatus* status(&iStatus); |
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167 User::RequestComplete(status, KErrNone); |
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168 SetActive(); |
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169 iState |= EStarted; |
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170 } |
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171 __FLOG(_L8("Start - Exit")); |
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172 } |
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173 |
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174 void CMTPStorageWatcher::DoCancel() |
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175 { |
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176 __FLOG(_L8("DoCancel - Entry")); |
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177 __FLOG(_L8("Stopping RFs notifier")); |
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178 iFrameworkSingletons.Fs().NotifyChangeCancel(); |
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179 iState &= (!EStarted); |
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180 __FLOG(_L8("DoCancel - Exit")); |
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181 } |
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182 |
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183 /** |
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184 Append all DPs folder exclusion list strings in Device DP |
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185 */ |
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186 void CMTPStorageWatcher::AppendFolderExclusionListL() |
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187 { |
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188 CDesCArraySeg* folderExclusionSets = new (ELeave) CDesCArraySeg(KFolderExclusionGranularity); |
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189 CleanupStack::PushL(folderExclusionSets); |
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190 CMTPDataProviderController& dps(iFrameworkSingletons.DpController()); |
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191 TUint currentDpIndex = 0, count = dps.Count(); |
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192 while (currentDpIndex < count) |
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193 { |
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194 CMTPDataProvider& dp(dps.DataProviderByIndexL(currentDpIndex)); |
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195 if(KMTPImplementationUidDeviceDp != dp.ImplementationUid().iUid) |
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196 { |
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197 folderExclusionSets->Reset(); |
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198 dp.Plugin().SupportedL(EFolderExclusionSets,*folderExclusionSets); |
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199 for(TInt i = 0; i < folderExclusionSets->Count(); ++i) |
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200 { |
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201 TPtrC16 excludedFolder = (*folderExclusionSets)[i]; |
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202 iFolderExclusionList->AppendL(excludedFolder); |
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203 } |
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204 } |
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205 currentDpIndex++; |
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206 } |
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207 CleanupStack::PopAndDestroy(folderExclusionSets); |
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208 } |
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209 |
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210 /** |
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211 Handles leaves occurring in RunL. |
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212 @param aError leave error code |
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213 @return KErrNone |
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214 */ |
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215 #ifdef __FLOG_ACTIVE |
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216 TInt CMTPStorageWatcher::RunError(TInt aError) |
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217 #else |
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218 TInt CMTPStorageWatcher::RunError(TInt /*aError*/) |
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219 #endif |
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220 { |
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221 __FLOG(_L8("RunError - Entry")); |
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222 __FLOG_VA((_L8("Error = %d"), aError)); |
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223 |
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224 // Ignore the error, meaning that the storages may not be accurately accounted for |
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225 RequestNotification(); |
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226 |
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227 __FLOG(_L8("RunError - Exit")); |
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228 return KErrNone; |
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229 } |
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230 |
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231 void CMTPStorageWatcher::RunL() |
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232 { |
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233 __FLOG(_L8("RunL - Entry")); |
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234 const TUint32 previous(iDrivesConfig); |
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235 const TUint32 current(DriveConfigurationL(KAvailableDrives)); |
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236 if (current != previous) |
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237 { |
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238 const TUint32 changed(current ^ previous); |
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239 const TUint32 added(changed & current); |
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240 const TUint32 removed(changed & previous); |
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241 TInt i(KMaxDrives); |
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242 while (i--) |
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243 { |
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244 const TUint32 mask(1 << i); |
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245 if (added & mask) |
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246 { |
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247 StorageAvailableL(static_cast<TDriveNumber>(i)); |
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248 } |
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249 else if (removed & mask) |
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250 { |
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251 StorageUnavailableL(static_cast<TDriveNumber>(i)); |
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252 } |
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253 } |
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254 } |
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255 iDrivesConfig = current; |
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256 RequestNotification(); |
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257 __FLOG(_L8("RunL - Exit")); |
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258 } |
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259 |
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260 /** |
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261 Constructor. |
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262 @param aConnectionMgr The MTP connection manager interface. |
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263 */ |
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264 CMTPStorageWatcher::CMTPStorageWatcher(MMTPDataProviderFramework& aFramework) : |
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265 CActive(EPriorityStandard), |
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266 iFramework(aFramework) |
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267 { |
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268 CActiveScheduler::Add(this); |
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269 } |
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270 |
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271 /** |
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272 Second phase constructor. |
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273 */ |
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274 void CMTPStorageWatcher::ConstructL() |
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275 { |
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276 __FLOG_OPEN(KMTPSubsystem, KComponent); |
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277 __FLOG(_L8("ConstructL - Entry")); |
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278 iFrameworkSingletons.OpenL(); |
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279 iFrameworkSingletons.FrameworkConfig().GetValueL(CMTPFrameworkConfig::ELogicalStorageIdsAllocationEnable, iAllocateLogicalStorages); |
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280 |
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281 RMTPDeviceDpSingletons devSingletons; |
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282 devSingletons.OpenL(iFramework); |
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283 CleanupClosePushL(devSingletons); |
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284 |
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285 iDpSingletons.OpenL(iFramework); |
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286 iFolderExclusionList = devSingletons.ConfigMgr().GetArrayValueL(CMTPDeviceDpConfigMgr::EFolderExclusionList); |
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287 CleanupStack::PopAndDestroy(&devSingletons); |
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288 __FLOG(_L8("ConstructL - Exit")); |
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289 } |
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290 |
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291 TUint32 CMTPStorageWatcher::DriveConfigurationL(TBool aAllDrives) const |
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292 { |
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293 __FLOG(_L8("DriveConfigurationL - Entry")); |
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294 TUint32 config(0); |
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295 TDriveList drives; |
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296 RFs& fs(iFrameworkSingletons.Fs()); |
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297 User::LeaveIfError(fs.DriveList(drives)); |
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298 TInt i(KMaxDrives); |
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299 while (i--) |
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300 { |
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301 __FLOG_VA((_L8("Drive number %d, available = 0x%02d"), i, drives [i])); |
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302 if ((drives[i]) && |
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303 (!Excluded(static_cast<TDriveNumber>(i)))) |
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304 { |
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305 TDriveInfo info; |
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306 User::LeaveIfError(fs.Drive(info, i)); |
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307 if ((info.iType != EMediaNotPresent) || (aAllDrives)) |
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308 { |
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309 TVolumeInfo volumeInfo; |
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310 if(KErrNone == fs.Volume(volumeInfo,i)) |
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311 { |
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312 config |= (1 << i); |
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313 } |
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314 } |
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315 } |
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316 } |
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317 __FLOG_VA((_L8("Drives list = 0x%08X, AllDrives = %d"), config, aAllDrives)); |
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318 __FLOG(_L8("DriveConfigurationL - Exit")); |
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319 return config; |
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320 } |
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321 |
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322 TBool CMTPStorageWatcher::Excluded(TDriveNumber aDriveNumber) const |
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323 { |
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324 __FLOG(_L8("Excluded - Entry")); |
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325 TBool ret(iDrivesExcluded.FindInOrder(aDriveNumber) != KErrNotFound); |
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326 __FLOG_VA((_L8("Drive = %d, excluded = %d"), aDriveNumber, ret)); |
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327 __FLOG(_L8("Excluded - Exit")); |
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328 return ret; |
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329 } |
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330 |
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331 void CMTPStorageWatcher::RequestNotification() |
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332 { |
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333 __FLOG(_L8("RequestNotification - Entry")); |
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334 _LIT(KPath, "?:\\.."); |
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335 iFrameworkSingletons.Fs().NotifyChange(ENotifyEntry, iStatus, KPath); |
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336 SetActive(); |
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337 __FLOG(_L8("RequestNotification - Exit")); |
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338 } |
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339 |
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340 void CMTPStorageWatcher::SendEventL(TUint16 aEvent, TUint32 aStorageId) |
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341 { |
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342 __FLOG(_L8("SendEventL - Entry")); |
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343 if (iState & EStarted) |
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344 { |
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345 __FLOG_VA((_L8("Sending event 0x%04X for StorageID 0x%08X"), aEvent, aStorageId)); |
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346 iEvent.Reset(); |
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347 iEvent.SetUint16(TMTPTypeEvent::EEventCode, aEvent); |
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348 iEvent.SetUint32(TMTPTypeEvent::EEventSessionID, KMTPSessionAll); |
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349 iEvent.SetUint32(TMTPTypeEvent::EEventTransactionID, KMTPTransactionIdNone); |
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350 iEvent.SetUint32(TMTPTypeEvent::EEventParameter1, aStorageId); |
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351 iFramework.SendEventL(iEvent); |
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352 } |
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353 __FLOG(_L8("SendEventL - Exit")); |
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354 } |
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355 |
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356 /** |
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357 Configures the specified drive as an available MTP storage. |
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358 @param aDriveNumber The Symbian OS file system drive number. |
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359 @leave One of the system wide error codes, if a processing failure occurs. |
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360 */ |
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361 void CMTPStorageWatcher::StorageAvailableL(TDriveNumber aDriveNumber) |
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362 { |
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363 __FLOG(_L8("StorageAvailableL - Entry")); |
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364 __FLOG_VA((_L8("Drive = %d is available."), aDriveNumber)); |
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365 CMTPStorageMgr& mgr(iFrameworkSingletons.StorageMgr()); |
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366 TInt32 physical(mgr.PhysicalStorageId(aDriveNumber)); |
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367 _LIT(KSuidTemplate, "?:"); |
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368 // Generate the storage SUID as the drive root folder. |
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369 RBuf suid; |
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370 suid.CleanupClosePushL(); |
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371 suid.Assign((KSuidTemplate().AllocL())); |
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372 TChar driveChar; |
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373 User::LeaveIfError(iFramework.Fs().DriveToChar(aDriveNumber, driveChar)); |
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374 driveChar.LowerCase(); |
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375 suid[0] = driveChar; |
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376 // Create the storage meta-data. |
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377 CMTPStorageMetaData* storage = CMTPStorageMetaData::NewLC(); |
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378 storage->SetUint(CMTPStorageMetaData::EStorageSystemType, CMTPStorageMetaData::ESystemTypeDefaultFileSystem); |
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379 storage->SetDesCL(CMTPStorageMetaData::EStorageSuid, suid); |
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380 if(physical == KErrNotFound) |
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381 { |
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382 TUint32 id(mgr.AllocatePhysicalStorageIdL(iFramework.DataProviderId(), *storage)); |
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383 mgr.SetDriveMappingL(aDriveNumber, id); |
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384 } |
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385 physical = mgr.PhysicalStorageId(aDriveNumber); |
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386 |
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387 User::LeaveIfError(physical); |
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388 TUint32 logical(physical); |
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389 |
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390 // If configured to do so, assign a logical storage ID mapping. |
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391 if (iAllocateLogicalStorages) |
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392 { |
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393 __FLOG(_L8("Assigning local storage ID mapping")); |
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394 |
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395 // Try to read from resource file to use a specified root dir path, if available. |
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396 RBuf rootDirPath; |
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397 rootDirPath.CreateL(KMaxFileName); |
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398 rootDirPath.CleanupClosePushL(); |
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399 RMTPDeviceDpSingletons devSingletons; |
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400 devSingletons.OpenL(iFramework); |
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401 CleanupClosePushL(devSingletons); |
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402 TRAPD(resError, devSingletons.ConfigMgr().GetRootDirPathL(aDriveNumber, rootDirPath)); |
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403 __FLOG_VA((_L8("ResError = %d"), resError)); |
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404 if ((KErrNone == resError) && (0 < rootDirPath.Length())) |
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405 { |
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406 __FLOG(_L8("Reading resource file succeeded")); |
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407 // If there is a root directory information in rss file then check the directory exist or not. |
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408 // If not exists, then create it. |
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409 // Before doing anything, delete the leading and trailing white space. |
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410 rootDirPath.Trim(); |
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411 TBuf<KMaxFileName> buffer; |
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412 buffer.Append(driveChar); |
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413 _LIT(KSeperator,":"); |
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414 buffer.Append(KSeperator); |
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415 buffer.Append(rootDirPath); |
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416 TInt error = iFramework.Fs().MkDir(buffer); |
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417 suid.Close(); |
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418 _LIT(KSuidTemplate, "?:\\"); |
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419 suid.Assign((KSuidTemplate().AllocL())); |
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420 driveChar.LowerCase(); |
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421 suid[0] = driveChar; |
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422 |
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423 if ((KErrNone == error) || (KErrAlreadyExists == error)) |
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424 { |
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425 __FLOG(_L8("Overwriting SUID to specified root dir path from resource file")); |
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426 //if dir already existed or created, make that as root directory |
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427 suid.ReAllocL(buffer.Length()); |
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428 suid = buffer; |
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429 } |
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430 } |
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431 CleanupStack::PopAndDestroy(&devSingletons); |
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432 CleanupStack::PopAndDestroy(&rootDirPath); |
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433 |
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434 // Set up folder exclusion list |
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435 CDesCArraySeg* storageExclusions = new (ELeave) CDesCArraySeg(KFolderExclusionGranularity); |
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436 CleanupStack::PushL(storageExclusions); |
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437 TInt excludedFolderCount = iFolderExclusionList->Count(); |
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438 |
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439 for (TInt i = 0; i < excludedFolderCount; ++i) |
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440 { |
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441 TPtrC16 excludedFolder = (*iFolderExclusionList)[i]; |
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442 |
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443 if (excludedFolder[0] == '?' || |
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444 excludedFolder[0] == '*' || |
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445 excludedFolder[0] == suid[0]) |
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446 { |
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447 storageExclusions->AppendL(excludedFolder); |
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448 } |
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449 } |
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450 for ( TInt i=0; i<storageExclusions->Count();++i) |
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451 { |
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452 HBufC16* temp = static_cast<TPtrC16>((*storageExclusions)[i]).AllocL(); |
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453 TPtr16 tempptr(temp->Des()); |
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454 tempptr[0] = suid[0]; |
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455 storage->SetHashPath(tempptr,i); |
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456 delete temp; |
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457 } |
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458 |
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459 storage->SetDesCL(CMTPStorageMetaData::EStorageSuid, suid); |
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460 storage->SetDesCArrayL(CMTPStorageMetaData::EExcludedAreas, *storageExclusions); |
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461 CleanupStack::PopAndDestroy(storageExclusions); |
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462 |
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463 // Create the logical StorageID and drive mapping. |
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464 logical = mgr.AllocateLogicalStorageIdL(iFramework.DataProviderId(), physical, *storage); |
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465 mgr.SetDriveMappingL(aDriveNumber, logical); |
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466 |
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467 __FLOG_VA((_L8("Drive = %d mapped as storage 0x%08X"), aDriveNumber, logical)); |
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468 } |
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469 |
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470 CleanupStack::PopAndDestroy(storage); |
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471 CleanupStack::PopAndDestroy(&suid); |
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472 |
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473 // Notify the active data providers. |
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474 if (iState & EStarted) |
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475 { |
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476 TMTPNotificationParamsStorageChange params = {physical}; |
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477 iFrameworkSingletons.DpController().NotifyDataProvidersL(EMTPStorageAdded, static_cast<TAny*>(¶ms)); |
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478 } |
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479 |
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480 // Notify any connected Initiator(s). |
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481 if (iAllocateLogicalStorages) |
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482 { |
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483 SendEventL(EMTPEventCodeStoreAdded, logical); |
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484 } |
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485 |
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486 __FLOG(_L8("StorageAvailableL - Exit")); |
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487 } |
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488 |
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489 /** |
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490 Configures the specified drive as an unavailable MTP storage. |
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491 @param aDriveNumber The Symbian OS file system drive number. |
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492 @leave One of the system wide error codes, if a processing failure occurs. |
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493 */ |
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494 void CMTPStorageWatcher::StorageUnavailableL(TDriveNumber aDriveNumber) |
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495 { |
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496 __FLOG(_L8("StorageUnavailableL - Entry")); |
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497 __FLOG_VA((_L8("Drive = %d is unavailable."), aDriveNumber)); |
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498 CMTPStorageMgr& mgr(iFrameworkSingletons.StorageMgr()); |
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499 TInt32 physical(mgr.PhysicalStorageId(aDriveNumber)); |
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500 User::LeaveIfError(physical); |
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501 TUint32 logical(0); |
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502 |
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503 // If configured to do so, assign a logical storage ID mapping. |
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504 if (iAllocateLogicalStorages) |
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505 { |
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506 logical = mgr.FrameworkStorageId(aDriveNumber); |
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507 |
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508 // Deassign the logical storage ID mapping. |
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509 mgr.DeallocateLogicalStorageIds(iFramework.DataProviderId(), physical); |
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510 mgr.SetDriveMappingL(aDriveNumber, physical); |
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511 __FLOG_VA((_L8("Drive = %d unmapped as storage 0x%08X"), aDriveNumber, logical)); |
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512 } |
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513 |
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514 // Notify the active data providers. |
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515 TMTPNotificationParamsStorageChange params = {physical}; |
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516 iFrameworkSingletons.DpController().NotifyDataProvidersL(EMTPStorageRemoved, static_cast<TAny*>(¶ms)); |
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517 |
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518 // Notify any connected Initiator(s). |
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519 if (iAllocateLogicalStorages) |
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520 { |
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521 SendEventL(EMTPEventCodeStoreRemoved, logical); |
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522 } |
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523 __FLOG(_L8("StorageUnavailableL - Exit")); |
|
524 } |