1 /* |
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2 * Copyright (c) 2004-2009 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 the License "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 * CJournal implementation |
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16 * |
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17 */ |
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18 |
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19 |
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20 /** |
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21 @file |
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22 @released |
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23 @internalTechnology |
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24 */ |
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25 |
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26 #include "journal.h" |
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27 #include "journalfile.h" |
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28 #include "operationfunctions.h" |
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29 #include "usiflog.h" |
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30 #include <f32file.h> |
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31 |
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32 using namespace Usif; |
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33 |
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34 CJournal* CJournal::NewL(RFs& aFs, RLoader& aLoader, TStsTransactionId aTransactionID, const TDesC& aPath) |
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35 { |
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36 CJournal* self = CJournal::NewLC(aFs, aLoader, aTransactionID, aPath); |
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37 CleanupStack::Pop(self); |
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38 return self; |
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39 } |
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40 |
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41 CJournal* CJournal::NewLC(RFs& aFs, RLoader& aLoader, TStsTransactionId aTransactionID, const TDesC& aPath) |
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42 { |
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43 CJournal* self = new(ELeave) CJournal(aFs, aLoader); |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(aTransactionID, aPath); |
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46 return self; |
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47 } |
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48 |
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49 CJournal::~CJournal() |
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50 { |
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51 iCompletedDrives.Reset(); |
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52 iAllDrives.Reset(); |
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53 iJournalFiles.ResetAndDestroy(); |
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54 } |
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55 |
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56 CJournal::CJournal(RFs& aFs, RLoader& aLoader) : iFs(aFs), iLoader(aLoader) |
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57 { |
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58 } |
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59 |
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60 void CJournal::ConstructL(TStsTransactionId aTransactionID, const TDesC& aPath) |
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61 { |
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62 // construct the generic journal filename (does not include a drive) |
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63 CJournal::CreateJournalFileNameL(aTransactionID, aPath, iJournalFileName); |
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64 // construct the filename for the drives journal (located on the system drive) |
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65 CJournal::CreateDrvFileNameL(aTransactionID, aPath, iDriveArrayFileName); |
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66 InitJournalsL(); |
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67 } |
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68 |
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69 void CJournal::InitJournalsL() |
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70 { |
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71 RefreshDrivesArrayL(); |
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72 |
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73 // attempt to read the journals from all drives |
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74 |
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75 TInt drivesCount(iAllDrives.Count()); |
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76 RBuf journal; |
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77 journal.CreateL(KMaxFileName); |
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78 CleanupClosePushL(journal); |
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79 for (TInt i = 0; i < drivesCount; ++i) |
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80 { |
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81 TDriveUnit drive(iAllDrives[i]); |
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82 journal = drive.Name(); |
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83 journal.Append(iJournalFileName); |
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84 |
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85 // do not load completed drives |
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86 if (iCompletedDrives.Find(drive) != KErrNotFound) |
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87 { |
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88 continue; |
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89 } |
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90 |
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91 CJournalFile* journalFile = NULL; |
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92 TRAPD(err, journalFile = CJournalFile::NewL(iFs, iLoader, journal, iAllDrives[i])); |
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93 |
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94 // ignore error'd drives. These will either not be rolled back, |
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95 // or the user will find out later we can't write or commit to them. |
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96 |
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97 if (err == KErrNone) |
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98 { |
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99 CleanupStack::PushL(journalFile); |
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100 iJournalFiles.AppendL(journalFile); |
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101 CleanupStack::Pop(journalFile); |
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102 } |
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103 } |
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104 CleanupStack::PopAndDestroy(&journal); |
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105 } |
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106 |
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107 TInt CJournal::FindJournalFileIndexL(TInt aDrive) const |
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108 { |
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109 for(TInt index = 0; index < iJournalFiles.Count(); ++index) |
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110 if (iJournalFiles[index]->Drive() == aDrive) |
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111 return index; |
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112 |
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113 return KErrNotFound; |
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114 } |
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115 |
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116 void CJournal::DeleteJournalFilesL() |
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117 { |
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118 // delete all journal files |
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119 for(TInt drive = 0; drive < iJournalFiles.Count(); drive++) |
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120 { |
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121 DeleteJournalFileL(iJournalFiles[drive]->Drive()); |
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122 } |
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123 iJournalFiles.ResetAndDestroy(); |
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124 |
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125 // delete the drive array only after all journals have been completed |
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126 // (committed or rolled back) |
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127 if (iAllDrives.Count() == iCompletedDrives.Count()) |
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128 { |
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129 DeleteDrivesFileL(); |
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130 } |
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131 } |
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132 |
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133 void VerifyDirectoryDeletionErrorL(TInt err) |
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134 { |
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135 if(err != KErrNone && err != KErrNotFound && err != KErrPathNotFound && err != KErrInUse && err != KErrAccessDenied) |
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136 { |
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137 User::Leave(err); |
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138 } |
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139 } |
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140 |
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141 |
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142 void CJournal::DeleteJournalFileL(TInt aDrive, TBool aRecordAllRollbackEvents /* = ETrue */) |
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143 { |
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144 TInt index = FindJournalFileIndexL(aDrive); |
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145 iJournalFiles[index]->Close(); |
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146 TDriveUnit journalDrive(aDrive); |
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147 RBuf journal; |
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148 journal.CreateL(journalDrive.Name(), KMaxFileName); |
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149 CleanupClosePushL(journal); |
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150 journal.Append(iJournalFileName); |
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151 |
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152 User::LeaveIfError(iFs.Delete(journal)); |
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153 |
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154 // record that we have completed this drive |
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155 if (aRecordAllRollbackEvents) |
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156 UpdateDrivesFileL(aDrive); |
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157 |
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158 iCompletedDrives.InsertInOrder(aDrive); |
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159 |
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160 VerifyDirectoryDeletionErrorL(iFs.RmDir(journal)); |
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161 |
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162 CleanupStack::PopAndDestroy(&journal); |
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163 } |
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164 |
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165 void CJournal::DeleteDrivesFileL() |
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166 { |
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167 iCompletedDrives.Reset(); |
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168 TInt err = KErrNone; |
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169 |
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170 err = iFs.Delete(iDriveArrayFileName); |
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171 |
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172 if(err != KErrNone && err != KErrPathNotFound && err != KErrNotFound) |
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173 { |
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174 User::Leave(err); |
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175 } |
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176 |
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177 // try removing the journal path |
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178 TParse directory; |
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179 User::LeaveIfError(directory.SetNoWild(iDriveArrayFileName, NULL, NULL)); |
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180 while(!directory.IsRoot()) |
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181 { |
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182 // try to remove this directory |
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183 TInt err = iFs.RmDir(directory.DriveAndPath()); |
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184 if(err != KErrNone) |
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185 { |
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186 VerifyDirectoryDeletionErrorL(err); |
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187 break; |
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188 } |
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189 User::LeaveIfError(directory.PopDir()); |
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190 } |
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191 } |
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192 |
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193 // This function parses all the drives registered in the main drive file for this transaction. |
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194 // This function also checks which drives have been completed. |
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195 // As a result, two main drive sets: iCompletedDrives and iAllDrives are populated. |
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196 void CJournal::RefreshDrivesArrayL() |
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197 { |
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198 // clear existing journal drive arrays prior to reloading them from file |
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199 iCompletedDrives.Reset(); |
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200 iAllDrives.Reset(); |
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201 |
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202 RFileReadStream journalStream; |
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203 TInt err = journalStream.Open(iFs, iDriveArrayFileName, EFileStream); |
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204 if (err == KErrNotFound || err == KErrPathNotFound) |
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205 return; |
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206 User::LeaveIfError(err); |
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207 |
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208 CleanupClosePushL(journalStream); |
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209 while(ETrue) |
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210 { |
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211 // read the next entry in the drives' file |
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212 TInt drive = 0; |
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213 TRAP(err, drive = journalStream.ReadInt32L()); |
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214 if (err == KErrEof) |
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215 break; |
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216 |
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217 User::LeaveIfError(err); |
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218 |
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219 if(iAllDrives.Find(drive) == KErrNotFound) |
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220 { |
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221 // first instance indicates this drive was part of this |
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222 // transaction |
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223 iAllDrives.InsertInOrder(drive); |
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224 } |
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225 else |
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226 { |
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227 // second instance indicates this drive has been committed |
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228 // or rolled back |
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229 iCompletedDrives.InsertInOrder(drive); |
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230 } |
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231 } |
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232 CleanupStack::PopAndDestroy(&journalStream); |
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233 } |
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234 |
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235 void CJournal::UpdateDrivesFileL(TInt aDrive) |
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236 { |
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237 RFile file; |
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238 CleanupClosePushL(file); |
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239 // try opening the file if it already exists |
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240 TInt err = file.Open(iFs, iDriveArrayFileName, EFileWrite); |
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241 if (err != KErrNone) |
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242 { |
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243 if (err == KErrNotFound || err == KErrPathNotFound) |
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244 { |
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245 err = iFs.MkDirAll(iDriveArrayFileName); |
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246 if(err != KErrNone && err != KErrAlreadyExists) |
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247 { |
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248 User::Leave(err); |
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249 } |
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250 // journal does not exist, try creating one |
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251 User::LeaveIfError(file.Create(iFs, iDriveArrayFileName, EFileWrite)); |
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252 } |
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253 else |
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254 { |
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255 User::Leave(err); |
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256 } |
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257 } |
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258 |
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259 TInt fileSize; |
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260 User::LeaveIfError(file.Size(fileSize)); |
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261 |
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262 // attach to end of file for writing |
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263 RFileWriteStream stream; |
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264 stream.Attach(file, fileSize); |
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265 CleanupStack::Pop(&file); // file ownership |
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266 CleanupClosePushL(stream);// transfered to stream |
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267 stream.WriteInt32L(aDrive); |
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268 CleanupStack::PopAndDestroy(&stream); |
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269 } |
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270 |
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271 void CJournal::StartCommitL() |
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272 { |
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273 DEBUG_PRINTF3(_L("CJournal::StartCommitL() - iJournalFileName %S iDriveArrayFileName %S"), &iJournalFileName, &iDriveArrayFileName); |
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274 // To commit, all drives must exist. No exceptions. |
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275 if (iJournalFiles.Count() != iAllDrives.Count()) |
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276 { |
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277 User::Leave(KErrNotReady); |
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278 } |
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279 |
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280 // none of the drives must yet be completed... |
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281 if (iCompletedDrives.Count() != 0) |
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282 { |
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283 User::Leave(KErrNotSupported); |
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284 } |
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285 |
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286 // synch up all the drives |
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287 TInt drivesCount(iJournalFiles.Count()); |
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288 for (TInt i = 0; i < drivesCount; ++i) |
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289 { |
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290 //Check if Journal drives are present. |
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291 TDriveInfo info; |
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292 if (iFs.Drive(info, iJournalFiles[i]->Drive())!=KErrNone || info.iType==EMediaNotPresent) |
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293 { |
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294 User::Leave(KErrNotReady); |
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295 } |
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296 } |
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297 } |
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298 |
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299 void CJournal::FinishCommitL() |
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300 { |
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301 DEBUG_PRINTF3(_L("CJournal::FinishCommitL() - iJournalFileName %S iDriveArrayFileName %S"), &iJournalFileName, &iDriveArrayFileName); |
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302 DeleteJournalFilesL(); |
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303 |
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304 // return the journal to a state where it can be used again, |
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305 // in the insane event that someone wants to... |
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306 // (I'm looking at you sisregistry) |
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307 iCompletedDrives.Reset(); |
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308 iAllDrives.Reset(); |
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309 } |
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310 |
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311 void CJournal::FinishRollbackL(TInt aDrive, TBool aRecordAllRollbackEvents /* = ETrue */) |
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312 { |
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313 DEBUG_PRINTF4(_L("CJournal::FinishRollbackL() - iJournalFileName %S iDriveArrayFileName %S aDrive %d"), &iJournalFileName, &iDriveArrayFileName, aDrive); |
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314 DeleteJournalFileL(aDrive, aRecordAllRollbackEvents); |
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315 |
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316 if (iCompletedDrives.Count() == iAllDrives.Count()) |
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317 { |
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318 DeleteDrivesFileL(); |
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319 } |
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320 } |
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321 |
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322 // This function verifies whether a journal exists for this drive in this transaction. |
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323 // If it doesn't, then the journal file is created and added to iJournalFiles |
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324 TInt CJournal::PrepareToWriteL(TInt aDrive) |
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325 { |
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326 TInt index = FindJournalFileIndexL(aDrive); |
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327 if (index >= 0) // The journal already exists |
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328 { |
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329 return index; |
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330 } |
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331 |
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332 __ASSERT_ALWAYS(index == KErrNotFound, User::Invariant()); |
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333 // The journal does not exist - we need to create one |
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334 |
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335 TDriveUnit drive(aDrive); |
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336 RBuf journalPath; |
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337 journalPath.CreateL(drive.Name(), KMaxFileName); |
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338 CleanupClosePushL(journalPath); |
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339 journalPath.Append(iJournalFileName); |
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340 |
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341 CJournalFile* journalFile = CJournalFile::NewLC(iFs, iLoader, journalPath, aDrive); |
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342 iJournalFiles.AppendL(journalFile); |
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343 CleanupStack::Pop(journalFile); |
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344 CleanupStack::PopAndDestroy(&journalPath); |
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345 |
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346 UpdateDrivesFileL(aDrive); |
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347 |
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348 User::LeaveIfError(iAllDrives.InsertInOrder(aDrive)); |
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349 |
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350 return iJournalFiles.Count() - 1; // Since we appended the entry, we return the last index |
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351 } |
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352 |
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353 void CJournal::DeleteFilesL(TIntegrityServicesEvent aTypeFilter) |
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354 { |
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355 TInt journalsCount(iJournalFiles.Count()); |
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356 for (TInt i = 0; i < journalsCount; ++i) |
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357 { |
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358 iJournalFiles[i]->JournalOperationL(IntegrityDeleteFileL, aTypeFilter, CIntegrityServices::EFailDeletingFile); |
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359 } |
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360 } |
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361 |
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362 void CJournal::RestoreFilesL(TInt aDrive) |
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363 { |
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364 TInt index = FindJournalFileIndexL(aDrive); |
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365 User::LeaveIfError(index); |
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366 iJournalFiles[index]->JournalOperationL(IntegrityRestoreFileL, ERemovedFile, CIntegrityServices::EFailRestoringFile); |
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367 } |
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368 |
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369 void CJournal::DeleteFilesL(TIntegrityServicesEvent aTypeFilter, TInt aDrive) |
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370 { |
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371 TInt index = FindJournalFileIndexL(aDrive); |
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372 User::LeaveIfError(index); |
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373 iJournalFiles[index]->JournalOperationL(IntegrityDeleteFileL, aTypeFilter, CIntegrityServices::EFailDeletingFile); |
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374 } |
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375 |
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376 void CJournal::WriteJournalEventL(TIntegrityServicesEvent aEvent) |
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377 { |
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378 // write the event to each journal file |
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379 for(TInt index = 0; index < iJournalFiles.Count(); index++) |
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380 { |
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381 iJournalFiles[index]->EventL(aEvent); |
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382 } |
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383 } |
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384 |
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385 void CJournal::WriteJournalEventL(TIntegrityServicesEvent aEvent, TInt aDrive, TBool aSerializeEventToJournal) |
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386 { |
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387 TInt index = FindJournalFileIndexL(aDrive); |
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388 User::LeaveIfError(index); |
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389 iJournalFiles[index]->EventL(aEvent, aSerializeEventToJournal); |
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390 } |
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391 |
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392 void CJournal::AddL(const TDesC& aFileName) |
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393 { |
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394 DEBUG_PRINTF2(_L("CJournal::AddL() - aFileName %S"), &aFileName); |
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395 // write the filename to the journal on the same drive |
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396 TInt drive = CJournalFile::CheckFileNameL(iFs, aFileName); |
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397 TInt index = PrepareToWriteL(drive); |
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398 iJournalFiles[index]->AddL(aFileName); |
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399 } |
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400 |
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401 void CJournal::RemoveL(const TDesC& aFileName, TDes& backupFileName) |
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402 { |
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403 DEBUG_PRINTF2(_L("CJournal::RemoveL() - aFileName %S"), &aFileName); |
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404 // write the filename to the journal on the same drive |
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405 TInt drive = CJournalFile::CheckFileNameL(iFs, aFileName); |
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406 TInt index = PrepareToWriteL(drive); |
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407 iJournalFiles[index]->RemoveL(aFileName, backupFileName); |
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408 } |
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409 |
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410 void CJournal::TemporaryL(const TDesC& aFileName) |
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411 { |
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412 DEBUG_PRINTF2(_L("CJournal::TemporaryL() - aFileName %S"), &aFileName); |
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413 // write the filename to the journal on the same drive |
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414 TInt drive = CJournalFile::CheckFileNameL(iFs, aFileName); |
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415 TInt index = PrepareToWriteL(drive); |
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416 iJournalFiles[index]->TemporaryL(aFileName); |
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417 } |
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418 |
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419 TIntegrityServicesEvent CJournal::LastEventL() const |
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420 { |
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421 TIntegrityServicesEvent lastEvent = ENone; |
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422 // work out the "real" last event |
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423 // journals states may be at different since they cannot all be written |
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424 // to simultaneously |
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425 for(TInt index = 0; index < iJournalFiles.Count(); index++) |
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426 { |
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427 TInt position = iCompletedDrives.Find(iJournalFiles[index]->Drive()); |
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428 |
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429 if(position!=KErrNotFound) |
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430 continue; //don't check completed drives |
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431 |
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432 TIntegrityServicesEvent currentJournalLastEvent = iJournalFiles[index]->LastEvent(); |
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433 if (currentJournalLastEvent >= lastEvent) |
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434 lastEvent = currentJournalLastEvent; |
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435 }//for |
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436 return lastEvent; |
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437 } |
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438 |
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439 TIntegrityServicesEvent CJournal::LastEventL(TInt aDrive) const |
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440 { |
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441 DEBUG_PRINTF2(_L("CJournal::LastEventL() - aDrive %d"), aDrive); |
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442 TInt index = FindJournalFileIndexL(aDrive); |
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443 User::LeaveIfError(index); |
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444 |
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445 return iJournalFiles[index]->LastEvent(); |
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446 } |
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447 |
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448 /*static*/ void CJournal::CreateDrvFileNameL(TStsTransactionId aTransactionID, const TDesC& aPath, TDes& aDrvFileName) |
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449 { |
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450 DEBUG_PRINTF3(_L("CJournal::CreateDrvFileNameL() - aTransactionID %X aPath %S"), aTransactionID, &aPath); |
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451 aDrvFileName = TDriveUnit(::RFs::GetSystemDrive()).Name(); |
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452 aDrvFileName.Append(aPath); |
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453 aDrvFileName.AppendNumUC(static_cast<TUint32>(aTransactionID), EHex); |
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454 aDrvFileName.Append(KExtDelimiter); |
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455 aDrvFileName.Append(KDriveExt); |
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456 } |
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457 |
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458 /*static*/ void CJournal::CreateJournalFileNameL(TStsTransactionId aTransactionID, const TDesC& aPath, TDes& aJournalFileName) |
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459 { |
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460 aJournalFileName.Append(aPath); |
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461 aJournalFileName.AppendNumUC(static_cast<TUint32>(aTransactionID), EHex); |
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462 aJournalFileName.Append(KExtDelimiter); |
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463 aJournalFileName.Append(KJournalExt); |
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464 } |
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465 |
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466 /*static*/ TInt CJournal::RecoverTransactionIdFromDrvFileName(const TDesC& aDrvFileName, TStsTransactionId& aTransactionID) |
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467 { |
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468 TLex lex(aDrvFileName); |
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469 TUint32 tmp; |
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470 TInt result = lex.Val(tmp, EHex); |
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471 aTransactionID = static_cast<TStsTransactionId>(tmp); |
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472 return result; |
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473 } |
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474 |
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475 void CJournal::RollBackDriveL(TInt aDrive, TBool aRecordAllRollbackEvents) |
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476 { |
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477 switch (LastEventL()) |
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478 { |
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479 // Transaction did not complete, rollback required |
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480 case ERemovedFile: |
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481 case EBackupFile: |
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482 case ETempFile: |
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483 case EAddedFile: |
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484 case EAddedFilesRemoved: |
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485 case ERemovedFilesRestored: |
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486 // rollback this individual journal from where it last got to. |
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487 switch (LastEventL(aDrive)) |
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488 { |
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489 case ERemovedFile: |
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490 case EBackupFile: |
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491 case ETempFile: |
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492 case EAddedFile: |
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493 DeleteFilesL(EAddedFile, aDrive); |
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494 |
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495 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailNewFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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496 WriteJournalEventL(EAddedFilesRemoved, aDrive, aRecordAllRollbackEvents); |
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497 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailNewFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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498 |
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499 // fall-through - automatically proceed to the next state, we'll start from EAddedFilesRemoved in case the RestoreFileL has failed |
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500 case EAddedFilesRemoved: |
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501 RestoreFilesL(aDrive); |
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502 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailOldFilesRestored, CIntegrityServices::EBeforeJournal, KNullDesC); |
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503 WriteJournalEventL(ERemovedFilesRestored, aDrive, aRecordAllRollbackEvents); |
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504 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailOldFilesRestored, CIntegrityServices::EAfterJournal, KNullDesC); |
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505 |
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506 // fall-through - automatically proceed to the next state |
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507 case ERemovedFilesRestored: |
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508 DeleteFilesL(ETempFile, aDrive); |
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509 |
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510 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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511 WriteJournalEventL(ETempFilesRemoved, aDrive, aRecordAllRollbackEvents); |
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512 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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513 break; |
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514 |
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515 case ETempFilesRemoved: |
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516 break; |
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517 |
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518 // nothing was done, just delete the journal file |
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519 case ENone: |
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520 break; |
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521 |
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522 // Erk! Bad state, bad state! |
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523 default: |
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524 User::Leave(KErrCorrupt); |
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525 break; |
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526 } |
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527 break; |
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528 |
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529 // Transaction complete, just need to remove the backup |
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530 case ECommitted: |
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531 case EBackupFilesRemoved: |
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532 switch (LastEventL(aDrive)) |
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533 { |
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534 // At least one journal had a complete transaction... |
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535 // roll forwards all journal files. |
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536 case ERemovedFile: |
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537 case EBackupFile: |
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538 case ETempFile: |
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539 case EAddedFile: |
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540 case ECommitted: |
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541 DeleteFilesL(EBackupFile, aDrive); |
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542 |
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543 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailBackupFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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544 WriteJournalEventL(EBackupFilesRemoved, aDrive, aRecordAllRollbackEvents); |
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545 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailBackupFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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546 |
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547 //fall-through - automatically proceed to the next state |
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548 case EBackupFilesRemoved: |
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549 DeleteFilesL(ETempFile, aDrive); |
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550 |
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551 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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552 WriteJournalEventL(ETempFilesRemoved, aDrive, aRecordAllRollbackEvents); |
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553 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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554 break; |
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555 |
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556 case ETempFilesRemoved: |
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557 break; |
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558 |
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559 // nothing was done, just delete the journal file |
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560 case ENone: |
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561 break; |
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562 |
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563 // unknown state |
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564 default: |
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565 User::Leave(KErrCorrupt); |
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566 break; |
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567 } |
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568 break; |
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569 |
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570 case ETempFilesRemoved: |
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571 break; |
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572 |
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573 // nothing was done, just delete the journal file |
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574 case ENone: |
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575 break; |
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576 |
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577 // unknown state |
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578 default: |
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579 User::Leave(KErrCorrupt); |
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580 break; |
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581 } |
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582 |
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583 FinishRollbackL(aDrive, aRecordAllRollbackEvents); |
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584 } |
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585 |
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586 void CJournal::CommitL() |
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587 { |
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588 StartCommitL(); |
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589 |
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590 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailInstallComplete, CIntegrityServices::EBeforeJournal, KNullDesC); |
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591 WriteJournalEventL(ECommitted); |
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592 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailInstallComplete, CIntegrityServices::EAfterJournal, KNullDesC); |
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593 |
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594 DeleteFilesL(EBackupFile); |
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595 |
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596 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailBackupFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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597 WriteJournalEventL(EBackupFilesRemoved); |
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598 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailBackupFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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599 |
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600 DeleteFilesL(ETempFile); |
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601 |
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602 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EBeforeJournal, KNullDesC); |
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603 WriteJournalEventL(ETempFilesRemoved); |
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604 CIntegrityServices::SimulatePowerFailureL(CIntegrityServices::EFailTempFilesRemoved, CIntegrityServices::EAfterJournal, KNullDesC); |
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605 |
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606 FinishCommitL(); |
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607 } |
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608 |
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609 void CJournal::RollBackL(TBool aRecordAllRollbackEvents /*= ETrue*/) |
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610 { |
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611 #ifdef __WINSCW__ |
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612 // For 2 minutes after initial boot, DLLs are not unloaded. If we are doing a |
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613 // rollback, we need to make sure any pending unloadeds are actioned, otherwise a |
|
614 // previously loaded DLL could cause the rollback to fail on windows (on arm it is legal to |
|
615 // delete a loaded DLL/EXE, whilst on windows it is not). |
|
616 RLoader loader; |
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617 TInt r = loader.Connect(); |
|
618 if(r == KErrNone) |
|
619 { |
|
620 (void)loader.CancelLazyDllUnload(); |
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621 loader.Close(); |
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622 } |
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623 #endif |
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624 |
|
625 for(TInt index = 0; index < iJournalFiles.Count(); index++) |
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626 { |
|
627 TDriveUnit drive = iJournalFiles[index]->Drive(); |
|
628 // check to see if this drive has already been completed |
|
629 if(iCompletedDrives.Find(drive) != KErrNotFound) |
|
630 continue; |
|
631 |
|
632 // only attempt to recover writeable drives that are present |
|
633 TDriveInfo info; |
|
634 User::LeaveIfError(iFs.Drive(info, drive)); |
|
635 if (info.iMediaAtt & KMediaAttWriteProtected || info.iType==EMediaNotPresent) |
|
636 continue; |
|
637 |
|
638 TRAPD(err, RollBackDriveL(drive, aRecordAllRollbackEvents)); |
|
639 if(err != KErrNone && err != KErrPathNotFound && err != KErrNotFound |
|
640 && err != KErrNotReady) |
|
641 { |
|
642 // unexpected error |
|
643 User::Leave(err); |
|
644 } |
|
645 } |
|
646 } |
|