1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0"" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: RMMCScBkupArchiveReadStream implementation |
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15 * |
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16 * |
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17 */ |
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18 |
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19 #include "RMMCScBkupArchiveStreams.h" |
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20 |
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21 // User includes |
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22 #include "MMCScBkupLogger.h" |
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23 #include "CMMCScBkupArchiveDataManager.h" |
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24 |
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25 |
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26 |
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27 |
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28 // ========================= MEMBER FUNCTIONS ================================ |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // RMMCScBkupArchiveBuf::RMMCScBkupArchiveBuf() |
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32 // |
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33 // |
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34 // --------------------------------------------------------------------------- |
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35 RMMCScBkupArchiveBuf::RMMCScBkupArchiveBuf() |
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36 : iADM(NULL) |
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37 { |
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38 } |
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39 |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // RMMCScBkupArchiveBuf::AttachL() |
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43 // |
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44 // |
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45 // --------------------------------------------------------------------------- |
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46 void RMMCScBkupArchiveBuf::AttachL( CMMCScBkupArchiveDataManager& aADM, RFile64& aFile, TInt aPos, TBool aForWrite ) |
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47 { |
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48 //__LOG3("RMMCScBkupArchiveBuf::AttachL() - START - aFile: 0x%08x, aPos: %d, aForWrite: %d", aFile.SubSessionHandle(), aPos, aForWrite); |
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49 |
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50 // Prevent RFileBuf from resetting our file handle |
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51 RFile64 file(aFile); |
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52 RFileBuf::Attach(file, aPos); |
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53 |
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54 // We save the attach pos so that we can update the ADM with the final |
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55 // length of data that was read or written... |
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56 iInfo.Reset(); |
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57 iInfo.SetOffset(aPos); |
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58 |
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59 iWriteMode = aForWrite; |
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60 iADM = &aADM; |
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61 |
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62 //__LOG("RMMCScBkupArchiveBuf::AttachL() - END"); |
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63 } |
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64 |
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65 |
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66 // --------------------------------------------------------------------------- |
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67 // RMMCScBkupArchiveBuf::Close() |
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68 // |
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69 // |
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70 // --------------------------------------------------------------------------- |
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71 EXPORT_C void RMMCScBkupArchiveBuf::Close() |
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72 { |
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73 //__LOG1("RMMCScBkupArchiveBuf::Close() - START - File: 0x%08x", File().SubSessionHandle()); |
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74 |
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75 TRAP_IGNORE(DoSynchL()); |
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76 Detach(); |
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77 Reset(); |
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78 |
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79 //__LOG1("RMMCScBkupArchiveBuf::Close() - END - File: 0x%08x", File().SubSessionHandle()); |
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80 } |
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81 |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // RMMCScBkupArchiveBuf::IsOpen() |
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85 // |
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86 // |
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87 // --------------------------------------------------------------------------- |
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88 TBool RMMCScBkupArchiveBuf::IsOpen() const |
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89 { |
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90 return (File().SubSessionHandle() != KNullHandle); |
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91 } |
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92 |
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93 |
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94 // --------------------------------------------------------------------------- |
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95 // RMMCScBkupArchiveBuf::DoRelease() |
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96 // |
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97 // |
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98 // --------------------------------------------------------------------------- |
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99 void RMMCScBkupArchiveBuf::DoRelease() |
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100 { |
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101 //__LOG1("RMMCScBkupArchiveBuf::DoRelease() - START - File: 0x%08x", File().SubSessionHandle()); |
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102 |
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103 TRAP_IGNORE( UpdateInfoL() ); |
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104 Detach(); |
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105 RFileBuf::DoRelease(); |
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106 |
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107 //__LOG1("RMMCScBkupArchiveBuf::DoRelease() - END - File: 0x%08x", File().SubSessionHandle()); |
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108 } |
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109 |
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110 |
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111 // --------------------------------------------------------------------------- |
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112 // RMMCScBkupArchiveBuf::DoSynchL() |
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113 // |
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114 // |
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115 // --------------------------------------------------------------------------- |
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116 void RMMCScBkupArchiveBuf::DoSynchL() |
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117 { |
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118 //__LOG1("RMMCScBkupArchiveBuf::DoSynchL() - START - File: 0x%08x", File().SubSessionHandle()); |
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119 |
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120 RFileBuf::DoSynchL(); |
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121 UpdateInfoL(); |
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122 |
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123 //__LOG1("RMMCScBkupArchiveBuf::DoSynchL() - END - File: 0x%08x", File().SubSessionHandle()); |
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124 } |
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125 |
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126 |
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127 #ifdef RD_FILE_MANAGER_BACKUP |
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128 // --------------------------------------------------------------------------- |
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129 // RMMCScBkupArchiveBuf::DoWriteL() |
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130 // |
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131 // |
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132 // --------------------------------------------------------------------------- |
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133 void RMMCScBkupArchiveBuf::DoWriteL(const TAny* aPtr,TInt aLength) |
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134 { |
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135 iADM->CalculateCrc(aPtr, aLength); |
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136 RFileBuf::DoWriteL(aPtr, aLength); |
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137 } |
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138 #endif |
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139 |
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140 |
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141 // --------------------------------------------------------------------------- |
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142 // RMMCScBkupArchiveBuf::UpdateInfoL() |
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143 // |
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144 // |
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145 // --------------------------------------------------------------------------- |
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146 void RMMCScBkupArchiveBuf::UpdateInfoL() |
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147 { |
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148 //__LOG1("RMMCScBkupArchiveBuf::UpdateInfoL() - START - File: 0x%08x", File().SubSessionHandle()); |
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149 |
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150 // Update our stats |
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151 if ( iADM && File().SubSessionHandle() != KNullHandle ) |
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152 { |
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153 TStreamPos pos; |
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154 if ( iWriteMode ) |
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155 { |
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156 pos = TellL( MStreamBuf::EWrite ); |
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157 //__LOG("RMMCScBkupArchiveBuf::UpdateInfoL() - write mode..."); |
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158 } |
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159 else |
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160 { |
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161 pos = TellL( MStreamBuf::ERead ); |
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162 //__LOG("RMMCScBkupArchiveBuf::UpdateInfoL() - read mode..."); |
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163 } |
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164 // |
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165 const TInt currentOffset = pos.Offset(); |
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166 const TInt length = currentOffset - iInfo.Offset(); |
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167 |
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168 //__LOG1("RMMCScBkupArchiveBuf::UpdateInfoL() - currentOffset: %8d", currentOffset); |
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169 //__LOG1("RMMCScBkupArchiveBuf::UpdateInfoL() - length: %8d", length); |
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170 iInfo.SetLength( length ); |
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171 |
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172 // Inform ADM of final info |
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173 iADM->SetCurrentVector( iInfo ); |
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174 } |
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175 |
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176 //__LOG1("RMMCScBkupArchiveBuf::UpdateInfoL() - END - File: 0x%08x", File().SubSessionHandle()); |
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177 } |
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178 |
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179 |
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180 |
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181 |
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182 |
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183 |
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184 |
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185 |
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186 |
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187 |
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188 |
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189 // ========================= MEMBER FUNCTIONS ================================ |
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190 |
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191 // --------------------------------------------------------------------------- |
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192 // RMMCScBkupArchiveReadStream::OpenLC() |
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193 // |
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194 // |
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195 // --------------------------------------------------------------------------- |
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196 void RMMCScBkupArchiveReadStream::OpenLC( CMMCScBkupArchiveDataManager& aADM, RFile64& aArchiveFile, TInt aPos ) |
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197 { |
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198 CleanupClosePushL( *this ); |
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199 // |
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200 iSource.AttachL( aADM, aArchiveFile, aPos, EFalse ); |
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201 RReadStream::Attach( &iSource ); |
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202 } |
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203 |
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204 |
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205 // --------------------------------------------------------------------------- |
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206 // RMMCScBkupArchiveReadStream::IsOpen() |
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207 // |
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208 // |
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209 // --------------------------------------------------------------------------- |
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210 TBool RMMCScBkupArchiveReadStream::IsOpen() const |
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211 { |
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212 return iSource.IsOpen(); |
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213 } |
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214 |
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215 |
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216 |
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217 |
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218 |
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219 |
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220 |
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221 |
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222 |
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223 |
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224 |
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225 |
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226 // ========================= MEMBER FUNCTIONS ================================ |
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227 |
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228 // --------------------------------------------------------------------------- |
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229 // RMMCScBkupArchiveWriteStream::OpenLC() |
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230 // |
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231 // |
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232 // --------------------------------------------------------------------------- |
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233 void RMMCScBkupArchiveWriteStream::OpenLC( CMMCScBkupArchiveDataManager& aADM, RFile64& aArchiveFile, TInt aPos ) |
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234 { |
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235 CleanupClosePushL( *this ); |
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236 // |
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237 iSink.AttachL( aADM, aArchiveFile, aPos, ETrue ); |
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238 RWriteStream::Attach( &iSink ); |
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239 } |
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240 |
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241 |
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242 // --------------------------------------------------------------------------- |
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243 // RMMCScBkupArchiveWriteStream::IsOpen() |
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244 // |
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245 // |
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246 // --------------------------------------------------------------------------- |
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247 TBool RMMCScBkupArchiveWriteStream::IsOpen() const |
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248 { |
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249 return iSink.IsOpen(); |
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250 } |
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251 |
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252 |
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253 |
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254 |
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255 |
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256 |
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