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1 // Copyright (c) 1997-2009 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 /** |
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17 @internalTechnology |
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18 */ |
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19 |
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20 #ifndef BACKUP_H |
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21 #define BACKUP_H |
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22 |
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23 #include <e32base.h> |
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24 #include <f32file.h> |
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25 #include <e32property.h> |
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26 #include <connect/abclient.h> |
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27 #include "sessnotf.h" |
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28 #include "srvrepos.h" |
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29 |
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30 using namespace conn ; |
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31 |
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32 const TUint KArbitraryNumber = 1024 ; |
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33 const TUint32 KBackupStreamVersion = 1 ; |
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34 |
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35 // Bitfield representing backup stream features present in the |
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36 // incoming backup stream. |
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37 enum TBackupExtensions |
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38 { |
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39 ENoBackupExtensions = 0x00000000, |
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40 EDeletedKeysSupported = 0x00000001, |
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41 }; |
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42 |
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43 // Backup stream extension features supported by this version of central |
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44 // repository backup/restore - OR together bitwise values defined in |
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45 // TBackupExtensions to get correct value! |
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46 const TUint32 KBackupExtensionsSupported = EDeletedKeysSupported ; |
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47 |
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48 class TRepositoryBackupStreamHeader |
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49 { |
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50 public : |
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51 inline TRepositoryBackupStreamHeader(TStreamId aIndexStreamId) ; |
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52 inline TRepositoryBackupStreamHeader(); |
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53 inline void ExternalizeL(RWriteStream& aStream) const; |
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54 inline void InternalizeL(RReadStream& aStream); |
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55 inline TUid getUid(); |
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56 inline TStreamId getIndexStreamId() ; |
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57 inline TUint32 getVersion(); |
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58 inline TUint32 getBackupExtensionsSupported(); |
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59 |
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60 private : |
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61 TUid iBackupStreamUid ; |
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62 TUint32 iBackupStreamVersion ; |
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63 TStreamId iIndexStreamId ; |
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64 TUint32 iBackupExtensionsSupported ; |
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65 |
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66 // Reserved for future expansion |
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67 TUint32 iReserved1 ; |
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68 TUint32 iReserved2 ; |
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69 TUint32 iReserved3 ; |
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70 TUint32 iReserved4 ; |
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71 }; |
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72 |
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73 // |
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74 // Backup stream index class - Used to hold association between a UID (in |
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75 // our case the UID of a repository) and a stream ID - Can't use CStreamDictionary |
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76 // because that only lets you retrieve stream IDs by a (previously known) UID rather |
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77 // than iterate through its contents retrieving UID/StreamID pairs... |
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78 // |
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79 |
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80 class TRepositoryBackupStreamIndexElement |
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81 { |
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82 |
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83 public : |
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84 inline void Set (TUid aUid, TStreamId aSettingsStream, TStreamId aDeletedSettingsStream = KNullStreamIdValue) ; |
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85 inline void SetDeletedSettingsStream (TStreamId aDeletedSettingsStream) ; |
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86 inline void Get (TUid& aUid, TStreamId& aSettingsStreamId, TStreamId& aDeletedSettingsStreamId) ; |
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87 inline void GetDeletedSettingsStream (TStreamId& aDeletedSettingsStream) ; |
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88 inline void ExternalizeL(RWriteStream& aStream) const; |
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89 inline void InternalizeL(RReadStream& aStream, TUint32 aBackupStreamExtensions = ENoBackupExtensions); |
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90 |
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91 private: |
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92 TUid iUid ; |
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93 TStreamId iSettingsStream ; |
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94 TStreamId iDeletedSettingsStream ; |
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95 }; |
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96 |
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97 class CRepositoryBackupStreamIndex : public CBase |
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98 { |
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99 public: |
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100 inline static CRepositoryBackupStreamIndex* NewL() ; |
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101 inline static CRepositoryBackupStreamIndex* NewLC(); |
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102 inline ~CRepositoryBackupStreamIndex(); |
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103 inline void Close(void) ; |
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104 |
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105 void AddL(TUid aUid, TStreamId aSettingStreamId, TStreamId aDeletedSettingsStreamId) ; |
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106 TInt GetNext(TUid& aUid, TStreamId& aSettingsStreamId, TStreamId& aDeletedSettingsStreamId) ; |
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107 inline void Reset(); |
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108 inline void ExternalizeL(RWriteStream& aStream) const; |
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109 inline void InternalizeL(RReadStream& aStream, TUint32 aBackupStreamExtensions = ENoBackupExtensions); |
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110 |
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111 private: |
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112 inline CRepositoryBackupStreamIndex(){} ; |
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113 |
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114 private: |
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115 TInt iIndex ; |
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116 RArray<TRepositoryBackupStreamIndexElement> iStreamIndex ; |
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117 }; |
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118 |
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119 |
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120 enum TRepositoryBackupState |
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121 { |
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122 ENoBackupActivty, |
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123 EBackupInProgress, |
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124 ERestoreInProgress |
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125 }; |
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126 |
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127 // |
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128 // Backup client class. |
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129 // |
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130 // Has Active object functionality to monitor the state of the publish and subscribe |
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131 // flags associated with backup and restore and also implements MActiveBackupDataClient |
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132 // to perform active backup according to the "proxy data holder" model. |
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133 // |
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134 class CRepositoryBackupClient : public CActive, public MActiveBackupDataClient |
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135 { |
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136 public: |
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137 static CRepositoryBackupClient* NewL(RFs& aFs); |
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138 static CRepositoryBackupClient* NewLC(RFs& aFs); |
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139 inline static TRepositoryBackupState GetBackupStatus(void) {return iBackupStatus;} ; |
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140 |
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141 CRepositoryBackupClient(RFs& aFs); |
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142 ~CRepositoryBackupClient(); |
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143 void ConstructL(); |
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144 void StartL(); |
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145 void NotifyChange(); |
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146 |
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147 // Implementations of virtual functions inherited from MActiveBackupDataClient |
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148 void AllSnapshotsSuppliedL(); |
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149 void ReceiveSnapshotDataL(TDriveNumber aDrive, TDesC8& aBuffer, TBool aLastSection); |
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150 TUint GetExpectedDataSize(TDriveNumber aDrive); |
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151 void GetSnapshotDataL(TDriveNumber aDrive, TPtr8& aBuffer, TBool& aFinished); |
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152 void InitialiseGetBackupDataL(TDriveNumber aDrive); |
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153 void GetBackupDataSectionL(TPtr8& aBuffer, TBool& aFinished); |
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154 |
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155 void InitialiseGetProxyBackupDataL(TSecureId aSID, TDriveNumber aDrive) ; |
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156 void InitialiseRestoreProxyBaseDataL(TSecureId aSID, TDriveNumber aDrive) ; |
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157 |
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158 void InitialiseRestoreBaseDataL(TDriveNumber aDrive); |
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159 void RestoreBaseDataSectionL(TDesC8& aBuffer, TBool aFinished); |
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160 void InitialiseRestoreIncrementDataL(TDriveNumber aDrive); |
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161 void RestoreIncrementDataSectionL(TDesC8& aBuffer, TBool aFinished); |
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162 void RestoreComplete(TDriveNumber aDrive); |
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163 |
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164 void TerminateMultiStageOperation(); |
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165 TUint GetDataChecksum(TDriveNumber aDrive); |
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166 void CompleteOwnerIdLookupTableL(); |
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167 |
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168 private: |
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169 // Usual active object stuff |
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170 void RunL() ; |
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171 void DoCancel() ; |
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172 TInt RunError(TInt aError) ; |
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173 |
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174 void TestBURstatusL(void) ; |
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175 |
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176 // Leaving version of RestoreComplete to make it a bit easier |
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177 // for us to handle cleanup... |
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178 void RestoreCompleteL(); |
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179 |
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180 private: |
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181 enum TBackupDirectoryScan |
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182 { |
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183 EScanRom, |
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184 EScanInstall, |
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185 EScanPersist |
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186 }; |
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187 |
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188 private: |
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189 // Used to open a repository for backup and/or restore |
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190 CServerRepository* iRepository ; |
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191 |
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192 CSessionNotifier* iNotifier ; |
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193 |
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194 // Used to subscribe to Backup/Restore flag |
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195 RProperty iBackupRestoreProperty ; |
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196 |
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197 // File server session used to get directory listings |
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198 RFs& iFs; |
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199 RFile iFile ; |
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200 |
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201 // Secure ID being restored |
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202 TSecureId iSid ; |
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203 |
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204 // Active backup client to register with BUR engine |
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205 CActiveBackupClient* iActiveBackupClient ; |
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206 |
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207 TBool iRomScanDone; |
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208 // Current state (backup in proress, restore in progress, etc, etc, etc) |
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209 static TRepositoryBackupState iBackupStatus ; |
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210 |
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211 // Features supported by Backup Stream |
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212 TUint32 iBackupExtensionsSupported ; |
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213 }; |
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214 |
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215 |
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216 #include "backup.inl" |
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217 |
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218 #endif // BACKUP_H |