1 /* |
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2 * Copyright (c) 2002-2004 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: Client side of Remote Storage FW API access functions. |
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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 FILES |
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20 #include "rsfwsession.h" |
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21 #include "rsfwinterface.h" |
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22 |
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23 #ifdef __WINS__ |
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24 #include <e32math.h> |
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25 #endif |
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26 |
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27 // CONSTANTS |
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28 |
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29 // Number of message slots to reserve for this client server session. |
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30 // Since we only communicate synchronously here, we never have any |
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31 // outstanding asynchronous requests. |
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32 const TUint KDefaultMessageSlots = 4; |
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33 |
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34 #ifdef __WINS__ |
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35 const TUint KServerMinHeapSize = 0x1000; // 4K |
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36 const TUint KServerMaxHeapSize = 0x100000; // 64K |
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37 #endif |
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38 |
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39 // ============================ MEMBER FUNCTIONS ============================== |
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40 |
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41 // ---------------------------------------------------------------------------- |
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42 // RRsfwSession::RRsfwSession |
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43 // C++ default constructor can NOT contain any code, that |
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44 // might leave. |
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45 // ---------------------------------------------------------------------------- |
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46 // |
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47 EXPORT_C RRsfwSession::RRsfwSession() : RSessionBase() |
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48 { |
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49 } |
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50 |
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51 // ---------------------------------------------------------------------------- |
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52 // RRsfwSession::Connect |
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53 // Connects to the framework by starting the server if neccessary and creating |
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54 // a session. |
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55 // (other items were commented in a header). |
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56 // ---------------------------------------------------------------------------- |
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57 // |
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58 EXPORT_C TInt RRsfwSession::Connect() |
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59 { |
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60 const TInt KTryCount = 3; |
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61 |
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62 TInt err; |
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63 TBool retry; |
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64 TInt i = KTryCount; |
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65 do |
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66 { |
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67 err = StartServer(KRfeServerName); |
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68 if (err == KErrNone) |
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69 { |
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70 err = CreateSession(KRfeServerName, |
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71 Version(), |
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72 KDefaultMessageSlots); |
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73 } |
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74 retry = ((err == KErrNotFound) || (err == KErrServerTerminated)); |
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75 } while (retry && (++i <= KTryCount)); |
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76 |
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77 return err; |
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78 } |
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79 |
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80 // ---------------------------------------------------------------------------- |
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81 // RRsfwSession::Close |
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82 // ---------------------------------------------------------------------------- |
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83 // |
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84 EXPORT_C void RRsfwSession::Close() |
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85 { |
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86 } |
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87 |
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88 // ---------------------------------------------------------------------------- |
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89 // RRsfwSession::Version |
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90 // Returns the version of Remote File Engine |
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91 // (other items were commented in a header). |
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92 // ---------------------------------------------------------------------------- |
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93 // |
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94 EXPORT_C TVersion RRsfwSession::Version() const |
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95 { |
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96 return(TVersion(KRfeMajorVersionNumber, |
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97 KRfeMinorVersionNumber, |
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98 KRfeBuildVersionNumber)); |
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99 } |
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100 |
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101 // ---------------------------------------------------------------------------- |
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102 // RRsfwSession::MoveFids |
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103 // Sends the rename operation to Remote File Engine by putting the parameters |
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104 // into the shared memory chunk, sending the request and reading the result. |
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105 // (other items were commented in a header). |
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106 // ---------------------------------------------------------------------------- |
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107 // |
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108 EXPORT_C TInt RRsfwSession::MoveFids( |
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109 TFid aSourceFid, |
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110 const TDesC& aSourceName, |
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111 TFid aDestFid, |
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112 const TDesC& aDestName, |
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113 TBool aOverWrite) |
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114 { |
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115 |
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116 TRfeRenameInArgs* renameArgs = new TRfeRenameInArgs(); |
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117 if (!renameArgs) |
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118 { |
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119 return KErrNoMemory; |
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120 } |
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121 |
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122 // TRfeRenameInArgs* writePtr = static_cast<TRfeRenameInArgs*>(iWritePtr); |
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123 renameArgs->iOpCode = ERenameReplace; |
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124 |
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125 renameArgs->iFid = aSourceFid; |
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126 renameArgs->iSrcName.Copy(aSourceName); |
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127 renameArgs->iDstFid = aDestFid; |
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128 renameArgs->iDstName.Copy(aDestName); |
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129 renameArgs->iOverWrite = aOverWrite; |
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130 |
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131 TPckg<TRfeRenameInArgs> pckgInArgs(*renameArgs); |
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132 |
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133 TInt result = SendRequest(ERenameReplace, aSourceFid.iVolumeId, |
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134 TIpcArgs(&pckgInArgs)); |
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135 delete renameArgs; |
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136 return result; |
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137 } |
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138 |
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139 // ---------------------------------------------------------------------------- |
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140 // RRsfwSession::SetEntry |
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141 // (other items were commented in a header). |
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142 // ---------------------------------------------------------------------------- |
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143 // |
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144 EXPORT_C TInt RRsfwSession::SetEntry( |
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145 const TFid aFid, |
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146 const TTime& aTime, |
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147 TUint aSetAttMask, |
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148 TUint aClearAttMask) |
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149 { |
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150 TRfeSetAttrInArgs* setEntryArgs = new TRfeSetAttrInArgs(); |
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151 if (!setEntryArgs) |
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152 { |
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153 return KErrNoMemory; |
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154 } |
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155 |
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156 setEntryArgs->iOpCode = ESetAttr; |
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157 setEntryArgs->iFid = aFid; |
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158 |
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159 // default: no change |
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160 setEntryArgs->iAttr.iAtt = 0; |
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161 setEntryArgs->iMask.iAtt = 0; |
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162 |
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163 if (aSetAttMask & KEntryAttReadOnly) |
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164 { |
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165 // Set read-only |
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166 setEntryArgs->iAttr.iAtt |= KEntryAttReadOnly; |
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167 setEntryArgs->iMask.iAtt |= KEntryAttReadOnly; |
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168 } |
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169 if (aClearAttMask & KEntryAttReadOnly) |
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170 { |
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171 // Reset read-only |
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172 setEntryArgs->iMask.iAtt |= KEntryAttReadOnly; |
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173 } |
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174 |
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175 // Setting time |
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176 setEntryArgs->iAttr.iModified = aTime; |
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177 |
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178 // Let's see - we will not want to do anything unless |
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179 // the attributes convey something significant. |
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180 TInt result = KErrNone; |
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181 if (setEntryArgs->iMask.iAtt) |
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182 { |
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183 TPckg<TRfeSetAttrInArgs> pckgInArgs(*setEntryArgs); |
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184 result = SendRequest(ESetAttr, aFid.iVolumeId, TIpcArgs(&pckgInArgs)); |
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185 } |
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186 delete setEntryArgs; |
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187 return result; |
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188 } |
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189 |
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190 // ---------------------------------------------------------------------------- |
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191 // RRsfwSession::FlushCache |
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192 // Flushes the directory cache of a file or directory by putting the parameters |
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193 // into the shared memory chunk and sending the request. |
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194 // (other items were commented in a header). |
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195 // ---------------------------------------------------------------------------- |
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196 // |
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197 EXPORT_C TInt RRsfwSession::FlushCache( |
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198 TFid& aFid) |
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199 { |
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200 TRfeIoctlInArgs* ioctlArgs = new TRfeIoctlInArgs(); |
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201 if (!ioctlArgs) |
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202 { |
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203 return KErrNoMemory; |
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204 } |
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205 |
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206 ioctlArgs->iOpCode = EFsIoctl; |
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207 ioctlArgs->iFid = aFid; |
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208 ioctlArgs->iCmd = ERemoteFsIoctlRefresh; |
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209 ioctlArgs->iLen = 0; |
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210 |
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211 TPckg<TRfeIoctlInArgs> pckgInArgs(*ioctlArgs); |
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212 TInt result = SendRequest(EFsIoctl, aFid.iVolumeId, TIpcArgs(&pckgInArgs)); |
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213 delete ioctlArgs; |
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214 return result; |
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215 } |
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216 |
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217 // ---------------------------------------------------------------------------- |
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218 // RRsfwSession::SetHighCachePriority |
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219 // Sets higher cache priority for a file by putting the parameters |
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220 // into the shared memory chunk and sending the request. |
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221 // This feature is not supported currently. |
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222 // Perhaps will be implemented in near future. |
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223 // (other items were commented in a header). |
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224 // ---------------------------------------------------------------------------- |
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225 // |
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226 EXPORT_C TInt RRsfwSession::SetHighCachePriority(TFid& /* aFid */) |
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227 { |
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228 return KErrNotSupported; |
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229 } |
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230 |
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231 // ---------------------------------------------------------------------------- |
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232 // RRsfwSession::GetAttributes |
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233 // Sends GetAttr operation to Remote File Engine by putting the parameters |
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234 // into the shared memory chunk, sending the request and reading the result. |
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235 // (other items were commented in a header). |
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236 // ---------------------------------------------------------------------------- |
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237 // |
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238 EXPORT_C TInt RRsfwSession::GetAttributes( |
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239 TFid aFileFid, |
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240 TEntry& aAttributes) |
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241 { |
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242 TRfeGetAttrInArgs* getattrArgs = new TRfeGetAttrInArgs(); |
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243 if (!getattrArgs) |
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244 { |
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245 return KErrNoMemory; |
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246 } |
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247 TRfeGetAttrOutArgs* getattrOutArgs = new TRfeGetAttrOutArgs(); |
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248 if (!getattrOutArgs) |
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249 { |
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250 return KErrNoMemory; |
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251 } |
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252 |
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253 getattrArgs->iOpCode = EGetAttr; |
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254 getattrArgs->iFid = aFileFid; |
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255 |
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256 TPckg<TRfeGetAttrInArgs> pckgInArgs(*getattrArgs); |
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257 TPckg<TRfeGetAttrOutArgs> pckgOutArgs(*getattrOutArgs); |
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258 |
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259 TInt result = SendRequest(EGetAttr, aFileFid.iVolumeId, |
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260 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
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261 |
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262 if (result == KErrNone) |
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263 { |
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264 // Note that aAttributes.iType (the entry UID) |
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265 // should only be set for a file whose |
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266 // size is greater than or equal to sizeof(TCheckedUid). |
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267 aAttributes.iAtt = getattrOutArgs->iAttr.iAtt; |
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268 aAttributes.iSize = getattrOutArgs->iAttr.iSize; |
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269 aAttributes.iModified = getattrOutArgs->iAttr.iModified; |
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270 aAttributes.iType = KNullUid; |
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271 } |
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272 |
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273 delete getattrArgs; |
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274 delete getattrOutArgs; |
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275 return result; |
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276 } |
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277 |
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278 // ---------------------------------------------------------------------------- |
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279 // RRsfwSession::OpenByPathL |
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280 // Sends OpenByPath operation to Remote File Engine by putting the parameters |
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281 // into the shared memory chunk, sending the request and reading the result. |
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282 // Remote File Engine returns the path of the cache container file for this fid |
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283 // (other items were commented in a header). |
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284 // ---------------------------------------------------------------------------- |
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285 // |
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286 EXPORT_C TInt RRsfwSession::OpenByPath( |
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287 TFid aFid, |
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288 TDes& aContainerPath, |
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289 TDirEntAttr* aAttributes, |
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290 TBool aTrueOpen) |
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291 { |
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292 TRfeOpenByPathInArgs* openbypathArgs = new TRfeOpenByPathInArgs(); |
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293 if (!openbypathArgs) |
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294 { |
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295 return KErrNoMemory; |
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296 } |
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297 TRfeOpenByPathOutArgs* openbypathOutArgs = new TRfeOpenByPathOutArgs(); |
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298 if (!openbypathOutArgs) |
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299 { |
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300 return KErrNoMemory; |
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301 } |
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302 |
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303 openbypathArgs->iOpCode = EOpenByPath; |
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304 openbypathArgs->iFid = aFid; |
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305 |
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306 // Flag field is used to pass attributes, |
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307 // which indicate which lock should be obtained for the file |
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308 if (aAttributes) |
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309 { |
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310 openbypathArgs->iFlags = aAttributes->iAtt; |
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311 } |
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312 else |
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313 { |
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314 openbypathArgs->iFlags = 0; |
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315 } |
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316 |
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317 // tells whether the file is really opened or do we need it because |
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318 // ReadSection() was called... (in the latter case Symbian File Server |
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319 // does not open the file...) */ |
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320 openbypathArgs->iTrueOpen = aTrueOpen; |
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321 |
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322 TPckg<TRfeOpenByPathInArgs> pckgInArgs(*openbypathArgs); |
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323 TPckg<TRfeOpenByPathOutArgs> pckgOutArgs(*openbypathOutArgs); |
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324 |
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325 TInt result = SendRequest(EOpenByPath, aFid.iVolumeId, TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
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326 |
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327 if (result == KErrNone) |
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328 { |
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329 if (aAttributes) |
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330 { |
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331 *aAttributes = openbypathOutArgs->iAttr; |
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332 } |
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333 // Processing the response |
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334 _LIT(KPathRedundancy, "\\.\\"); |
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335 TInt j = openbypathOutArgs->iPath.Find(KPathRedundancy); |
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336 if (j != KErrNotFound) |
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337 { |
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338 TInt i = openbypathOutArgs->iPath.Length(); |
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339 TInt k; |
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340 for (k = j; k + 2 < i; k++) |
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341 { |
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342 openbypathOutArgs->iPath[k] = |
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343 openbypathOutArgs->iPath[k + 2]; |
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344 } |
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345 openbypathOutArgs->iPath.SetLength(i - 2); |
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346 } |
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347 |
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348 const TInt maximumLength = aContainerPath.MaxLength(); |
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349 if (maximumLength >= openbypathOutArgs->iPath.Length()) |
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350 { |
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351 aContainerPath.Copy(openbypathOutArgs->iPath); |
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352 } |
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353 else |
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354 { |
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355 aContainerPath.Copy( |
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356 openbypathOutArgs->iPath.Left(maximumLength)); |
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357 } |
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358 } |
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359 delete openbypathArgs; |
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360 delete openbypathOutArgs; |
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361 return result; |
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362 } |
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363 |
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364 // ---------------------------------------------------------------------------- |
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365 // RRsfwSession::RfeInit |
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366 // Gets the fid of the root of the mount for Remote File Engine by putting the |
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367 // parameters into the shared memory chunk, sending the request and reading |
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368 // the result. |
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369 // This allows us to get other fids by lookup(). |
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370 // (other items were commented in a header). |
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371 // ---------------------------------------------------------------------------- |
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372 // |
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373 EXPORT_C TInt RRsfwSession::RfeInit(TFid& aRootFid) |
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374 { |
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375 TRfeRootInArgs* rootArgs = new TRfeRootInArgs(); |
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376 if (!rootArgs) |
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377 { |
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378 return KErrNoMemory; |
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379 } |
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380 |
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381 TRfeRootOutArgs* rootOutArgs = new TRfeRootOutArgs(); |
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382 if (!rootOutArgs) |
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383 { |
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384 return KErrNoMemory; |
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385 } |
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386 |
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387 rootArgs->iOpCode = EFsRoot; |
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388 rootArgs->iFid.iVolumeId = 0; |
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389 rootArgs->iFid.iNodeId = 0; |
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390 |
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391 TPckg<TRfeRootInArgs> pckgInArgs(*rootArgs); |
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392 TPckg<TRfeRootOutArgs> pckgOutArgs(*rootOutArgs); |
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393 |
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394 TInt result = SendRequest(EFsRoot, aRootFid.iVolumeId, |
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395 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
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396 |
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397 if (result == KErrNone) |
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398 { |
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399 aRootFid = rootOutArgs->iFid; |
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400 } |
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401 |
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402 delete rootArgs; |
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403 delete rootOutArgs; |
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404 return result; |
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405 } |
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406 |
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407 // ---------------------------------------------------------------------------- |
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408 // RRsfwSession::MakeDirectoryL |
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409 // Sends MkDir operation to Remote File Engine by putting the parameters |
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410 // into the shared memory chunk, sending the request and reading the result. |
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411 // (other items were commented in a header). |
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412 // ---------------------------------------------------------------------------- |
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413 // |
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414 EXPORT_C TInt RRsfwSession::MakeDirectory( |
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415 TFid aParentFid, |
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416 const TDesC& aDirName) |
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417 { |
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418 TRfeMkdirInArgs* mkdirArgs = new TRfeMkdirInArgs(); |
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419 if (!mkdirArgs) |
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420 { |
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421 return KErrNoMemory; |
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422 } |
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423 |
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424 mkdirArgs->iOpCode = EMkDir; |
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425 mkdirArgs->iFid = aParentFid; |
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426 |
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427 mkdirArgs->iEntry.iName.Copy(aDirName); |
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428 mkdirArgs->iEntry.iAttr.iAtt = 0; // not read only |
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429 |
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430 TPckg<TRfeMkdirInArgs> pckgInArgs(*mkdirArgs); |
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431 TInt result = SendRequest(EMkDir, |
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432 aParentFid.iVolumeId, |
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433 TIpcArgs(&pckgInArgs)); |
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434 delete mkdirArgs; |
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435 return result; |
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436 } |
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437 |
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438 // ---------------------------------------------------------------------------- |
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439 // RRsfwSession::RemoveDirectoryL |
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440 // Sends Remove Directory operation to Remote File Engine by putting the |
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441 // parameters into the shared memory chunk, sending the request and reading |
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442 // the result. |
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443 // (other items were commented in a header). |
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444 // ---------------------------------------------------------------------------- |
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445 // |
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446 EXPORT_C TInt RRsfwSession::RemoveDirectory( |
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447 TFid aParentFid, |
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448 const TDesC& aDirName) |
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449 { |
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450 TRfeRmdirInArgs* rmdirArgs = new TRfeRmdirInArgs(); |
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451 if (!rmdirArgs) |
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452 { |
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453 return KErrNoMemory; |
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454 } |
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455 |
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456 rmdirArgs->iOpCode = ERemoveDir; |
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457 rmdirArgs->iFid = aParentFid; |
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458 |
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459 rmdirArgs->iName.Copy(aDirName); |
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460 |
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461 TPckg<TRfeRmdirInArgs> pckgInArgs(*rmdirArgs); |
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462 TInt result = SendRequest(ERemoveDir, |
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463 aParentFid.iVolumeId, |
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464 TIpcArgs(&pckgInArgs)); |
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465 |
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466 delete rmdirArgs; |
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467 return result; |
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468 } |
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469 |
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470 // ---------------------------------------------------------------------------- |
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471 // RRsfwSession::CreateFileL |
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472 // Sends Create File operation to Remote File Engine by putting the parameters |
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473 // into the shared memory chunk, sending the request and reading the result. |
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474 // (other items were commented in a header). |
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475 // ---------------------------------------------------------------------------- |
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476 // |
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477 EXPORT_C TInt RRsfwSession::CreateFile( |
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478 TFid aParentFid, |
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479 const TDesC& aFileName, |
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480 TUint aMode, |
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481 TUint aExcl, |
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482 TFid& aNewFid) |
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483 { |
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484 TRfeCreateInArgs* createArgs = new TRfeCreateInArgs(); |
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485 if (!createArgs) |
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486 { |
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487 return KErrNoMemory; |
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488 } |
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489 |
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490 TRfeCreateOutArgs* createOutArgs = new TRfeCreateOutArgs(); |
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491 if (!createOutArgs) |
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492 { |
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493 return KErrNoMemory; |
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494 } |
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495 |
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496 createArgs->iOpCode = ECreateFile; |
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497 createArgs->iFid = aParentFid; |
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498 |
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499 createArgs->iEntry.iName.Copy(aFileName); |
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500 |
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501 if (aMode & EFileWrite) |
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502 { |
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503 createArgs->iEntry.iAttr.iAtt = 0; |
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504 } |
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505 else |
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506 { |
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507 createArgs->iEntry.iAttr.iAtt = KEntryAttReadOnly; |
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508 } |
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509 createArgs->iEntry.iAttr.iSize = 0; |
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510 createArgs->iEntry.iAttr.iModified = 0; |
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511 |
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512 createArgs->iExcl = aExcl; |
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513 |
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514 TPckg<TRfeCreateInArgs> pckgInArgs(*createArgs); |
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515 TPckg<TRfeCreateOutArgs> pckgOutArgs(*createOutArgs); |
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516 TInt result = SendRequest(ECreateFile, |
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517 aParentFid.iVolumeId, |
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518 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
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519 |
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520 if (result == KErrNone) |
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521 { |
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522 aNewFid = createOutArgs->iFid; |
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523 } |
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524 |
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525 delete createArgs; |
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526 delete createOutArgs; |
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527 return result; |
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528 } |
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529 |
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530 // ---------------------------------------------------------------------------- |
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531 // RRsfwSession::RemoveFileL |
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532 // Sends Remove File operation to Remote File Engine by putting the parameters |
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533 // into the shared memory chunk, sending the request and reading the result. |
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534 // (other items were commented in a header). |
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535 // ---------------------------------------------------------------------------- |
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536 // |
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537 EXPORT_C TInt RRsfwSession::RemoveFile( |
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538 TFid aParentFid, |
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539 const TDesC& aFileName) |
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540 { |
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541 TRfeRemoveInArgs* removeArgs = new TRfeRemoveInArgs(); |
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542 if (!removeArgs) |
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543 { |
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544 return KErrNoMemory; |
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545 } |
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546 |
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547 removeArgs->iOpCode = ERemove; |
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548 removeArgs->iFid = aParentFid; |
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549 |
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550 removeArgs->iName.Copy(aFileName); |
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551 |
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552 TPckg<TRfeRemoveInArgs> pckgInArgs(*removeArgs); |
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553 TInt result = SendRequest(ERemove, |
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554 aParentFid.iVolumeId, |
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555 TIpcArgs(&pckgInArgs)); |
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556 |
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557 delete removeArgs; |
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558 return result; |
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559 } |
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560 |
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561 // ---------------------------------------------------------------------------- |
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562 // RRsfwSession::LookupL |
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563 // Sends Lookup operation to Remote File Engine by putting the parameters |
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564 // into the shared memory chunk, sending the request and reading the result. |
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565 // (other items were commented in a header). |
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566 // ---------------------------------------------------------------------------- |
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567 // |
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568 EXPORT_C TInt RRsfwSession::Lookup( |
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569 TFid aParentFid, |
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570 const TDesC& aName, |
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571 TUint aNodeType, |
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572 TFid& aFid) |
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573 { |
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574 TBool directory = EFalse; |
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575 |
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576 TPtrC peek; |
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577 peek.Set(aName.Right(1)); // the last char |
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578 if ((peek.Length() > 0) && (peek[0] == '\\')) |
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579 { |
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580 directory = ETrue; |
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581 } |
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582 |
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583 TRfeLookupInArgs* lookupArgs = new TRfeLookupInArgs(); |
|
584 if (!lookupArgs) |
|
585 { |
|
586 return KErrNoMemory; |
|
587 } |
|
588 |
|
589 TRfeLookupOutArgs* lookupOutArgs = new TRfeLookupOutArgs(); |
|
590 if (!lookupOutArgs) |
|
591 { |
|
592 return KErrNoMemory; |
|
593 } |
|
594 |
|
595 lookupArgs->iOpCode = ELookUp; |
|
596 lookupArgs->iFid = aParentFid; |
|
597 lookupArgs->iNodeType = aNodeType; |
|
598 |
|
599 lookupArgs->iName.Copy(aName); |
|
600 |
|
601 if (directory) |
|
602 { |
|
603 // We don't want to copy the trailing backslash |
|
604 TInt len = lookupArgs->iName.Length(); |
|
605 lookupArgs->iName.SetLength(len - 1); |
|
606 } |
|
607 |
|
608 TPckg<TRfeLookupInArgs> pckgInArgs(*lookupArgs); |
|
609 TPckg<TRfeLookupOutArgs> pckgOutArgs(*lookupOutArgs); |
|
610 TInt result = SendRequest(ELookUp, |
|
611 aParentFid.iVolumeId, |
|
612 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
|
613 |
|
614 if (result == KErrNone) |
|
615 { |
|
616 aFid = lookupOutArgs->iFid; |
|
617 } |
|
618 |
|
619 if (result == KErrNotFound) |
|
620 { |
|
621 if (directory) |
|
622 { |
|
623 return KErrPathNotFound; |
|
624 } |
|
625 else |
|
626 { |
|
627 return KErrNotFound; |
|
628 } |
|
629 } |
|
630 |
|
631 delete lookupArgs; |
|
632 delete lookupOutArgs; |
|
633 return result; |
|
634 } |
|
635 |
|
636 // ---------------------------------------------------------------------------- |
|
637 // RRsfwSession::CloseFile |
|
638 // Sends Close operation to Remote File Engine by putting the parameters |
|
639 // into the shared memory chunk, sending the request and reading the result. |
|
640 // (other items were commented in a header). |
|
641 // ---------------------------------------------------------------------------- |
|
642 // |
|
643 EXPORT_C void RRsfwSession::CloseFile( |
|
644 const TFid aFid, |
|
645 const TUint aFlags) |
|
646 { |
|
647 // close cannot be called asynchronously in the file server API |
|
648 // and cannot return an error code |
|
649 // so we make a blind request to the server |
|
650 SendReceive(EClose, TIpcArgs(aFid.iVolumeId, aFid.iNodeId, aFlags)); |
|
651 } |
|
652 |
|
653 // ---------------------------------------------------------------------------- |
|
654 // RRsfwSession::FlushL |
|
655 // This "abuses" close operation code. |
|
656 // The file is not really closed by the File Server, |
|
657 // and Remote File Engine only writes the (changed) file back to the |
|
658 // remote server, but does not release a possible write lock. |
|
659 // (other items were commented in a header). |
|
660 // ---------------------------------------------------------------------------- |
|
661 // |
|
662 EXPORT_C TInt RRsfwSession::Flush( |
|
663 const TFid aFid, |
|
664 TInt aFirstByte, |
|
665 TInt aDataLength, |
|
666 TInt aTotalSize) |
|
667 { |
|
668 TRfeFlushInArgs* flushArgs = new TRfeFlushInArgs(); |
|
669 if (!flushArgs) |
|
670 { |
|
671 return KErrNoMemory; |
|
672 } |
|
673 |
|
674 flushArgs->iOpCode = EFlush; |
|
675 flushArgs->iFid = aFid; |
|
676 flushArgs->iFirstByte = aFirstByte; |
|
677 flushArgs->iDataLength = aDataLength; |
|
678 flushArgs->iTotalSize = aTotalSize; |
|
679 |
|
680 TPckg<TRfeFlushInArgs> pckgInArgs(*flushArgs); |
|
681 |
|
682 TInt result = SendRequest(EFlush, aFid.iVolumeId, |
|
683 TIpcArgs(&pckgInArgs)); |
|
684 |
|
685 delete flushArgs; |
|
686 return result; |
|
687 } |
|
688 |
|
689 // ---------------------------------------------------------------------------- |
|
690 // RRsfwSession::Fetch |
|
691 // Sends Fetch operation to Remote File Engine by putting the parameters |
|
692 // into the shared memory chunk, sending the request and reading the result. |
|
693 // Remote File Engine will write data into cache file, which path it knows by |
|
694 // the fid. |
|
695 // (other items were commented in a header). |
|
696 // ---------------------------------------------------------------------------- |
|
697 // |
|
698 EXPORT_C TInt RRsfwSession::Fetch( |
|
699 TFid aFileFid, |
|
700 TInt aFirstByte, |
|
701 TInt aLastByte, |
|
702 TInt& aCachedBytes) |
|
703 { |
|
704 TRfeFetchInArgs* fetchArgs = new TRfeFetchInArgs(); |
|
705 if (!fetchArgs) |
|
706 { |
|
707 return KErrNoMemory; |
|
708 } |
|
709 TRfeFetchOutArgs* fetchOutArgs = new TRfeFetchOutArgs(); |
|
710 if (!fetchOutArgs) |
|
711 { |
|
712 return KErrNoMemory; |
|
713 } |
|
714 |
|
715 fetchArgs->iOpCode = EFetch; |
|
716 fetchArgs->iFid = aFileFid; |
|
717 fetchArgs->iFirstByte = aFirstByte; |
|
718 fetchArgs->iLastByte = aLastByte; |
|
719 |
|
720 TPckg<TRfeFetchInArgs> pckgInArgs(*fetchArgs); |
|
721 TPckg<TRfeFetchOutArgs> pckgOutArgs(*fetchOutArgs); |
|
722 TInt result = SendRequest(EFetch, aFileFid.iVolumeId, |
|
723 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
|
724 |
|
725 if (result == KErrNone) |
|
726 { |
|
727 aCachedBytes = fetchOutArgs->iLastByte; |
|
728 } |
|
729 |
|
730 delete fetchArgs; |
|
731 delete fetchOutArgs; |
|
732 return result; |
|
733 } |
|
734 |
|
735 // ---------------------------------------------------------------------------- |
|
736 // RRsfwSession::FetchData |
|
737 // Sends Fetch operation to Remote File Engine by putting the parameters |
|
738 // into the shared memory chunk, sending the request and reading the result. |
|
739 // Remote File Engine will write data into a temporary cache file, |
|
740 // valid only for the duration of this request. |
|
741 // Note that in this case Remote File Engine will read exactly the requested |
|
742 // amount, so aLastByte is not reset. |
|
743 // (other items were commented in a header). |
|
744 // ---------------------------------------------------------------------------- |
|
745 // |
|
746 EXPORT_C TInt RRsfwSession::FetchData( |
|
747 TFid aFileFid, |
|
748 TInt aFirstByte, |
|
749 TInt aLastByte, |
|
750 TDes& aTempFileName, |
|
751 TBool& aUseTempPath) |
|
752 { |
|
753 TRfeFetchDataInArgs* fetchDataArgs = new TRfeFetchDataInArgs(); |
|
754 if (!fetchDataArgs) |
|
755 { |
|
756 return KErrNoMemory; |
|
757 } |
|
758 |
|
759 TRfeFetchDataOutArgs* fetchDataOutArgs = new TRfeFetchDataOutArgs(); |
|
760 if (!fetchDataOutArgs) |
|
761 { |
|
762 return KErrNoMemory; |
|
763 } |
|
764 |
|
765 fetchDataArgs->iOpCode = EFetchData; |
|
766 fetchDataArgs->iFid = aFileFid; |
|
767 fetchDataArgs->iFirstByte = aFirstByte; |
|
768 fetchDataArgs->iLastByte = aLastByte; |
|
769 |
|
770 TPckg<TRfeFetchDataInArgs> pckgInArgs(*fetchDataArgs); |
|
771 TPckg<TRfeFetchDataOutArgs> pckgOutArgs(*fetchDataOutArgs); |
|
772 TInt result = SendRequest(EFetchData, aFileFid.iVolumeId, |
|
773 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
|
774 |
|
775 if (result == KErrNone) |
|
776 { |
|
777 // Processing the response |
|
778 _LIT(KPathRedundancy, "\\.\\"); |
|
779 TInt j = fetchDataOutArgs->iTempPath.Find(KPathRedundancy); |
|
780 if (j != KErrNotFound) |
|
781 { |
|
782 TInt i = fetchDataOutArgs->iTempPath.Length(); |
|
783 TInt k; |
|
784 for (k = j; k + 2 < i; k++) |
|
785 { |
|
786 fetchDataOutArgs->iTempPath[k] = |
|
787 fetchDataOutArgs->iTempPath[k + 2]; |
|
788 } |
|
789 fetchDataOutArgs->iTempPath.SetLength(i - 2); |
|
790 } |
|
791 |
|
792 const TInt maximumLength = aTempFileName.MaxLength(); |
|
793 if (maximumLength >= fetchDataOutArgs->iTempPath.Length()) |
|
794 { |
|
795 aTempFileName.Copy(fetchDataOutArgs->iTempPath); |
|
796 } |
|
797 else |
|
798 { |
|
799 aTempFileName.Copy( |
|
800 fetchDataOutArgs->iTempPath.Left(maximumLength)); |
|
801 } |
|
802 aUseTempPath = fetchDataOutArgs->iUseTempPath; |
|
803 } |
|
804 delete fetchDataArgs; |
|
805 delete fetchDataOutArgs; |
|
806 return result; |
|
807 } |
|
808 |
|
809 // ---------------------------------------------------------------------------- |
|
810 // RRsfwSession::OkToWriteL |
|
811 // (other items were commented in a header). |
|
812 // ---------------------------------------------------------------------------- |
|
813 // |
|
814 EXPORT_C TInt RRsfwSession::OkToWrite( |
|
815 TFid aFid, |
|
816 TUint aBytes, |
|
817 TBool& aOkToWrite) |
|
818 { |
|
819 TRfeWriteDataInArgs* writedataArgs = new TRfeWriteDataInArgs(); |
|
820 if (!writedataArgs) |
|
821 { |
|
822 return KErrNoMemory; |
|
823 } |
|
824 |
|
825 TRfeWriteDataOutArgs* writedataOutArgs = new TRfeWriteDataOutArgs(); |
|
826 if (!writedataOutArgs) |
|
827 { |
|
828 return KErrNoMemory; |
|
829 } |
|
830 |
|
831 writedataArgs->iOpCode = EOkToWrite; |
|
832 writedataArgs->iFid = aFid; |
|
833 writedataArgs->iBytes = aBytes; |
|
834 |
|
835 TPckg<TRfeWriteDataInArgs> pckgInArgs(*writedataArgs); |
|
836 TPckg<TRfeWriteDataOutArgs> pckgOutArgs(*writedataOutArgs); |
|
837 TInt result = SendRequest(EOkToWrite, aFid.iVolumeId, |
|
838 TIpcArgs(&pckgInArgs, &pckgOutArgs)); |
|
839 |
|
840 if (result == KErrNone) |
|
841 { |
|
842 aOkToWrite = writedataOutArgs->iOkToWrite; |
|
843 } |
|
844 |
|
845 delete writedataArgs; |
|
846 delete writedataOutArgs; |
|
847 return result; |
|
848 } |
|
849 |
|
850 // ---------------------------------------------------------------------------- |
|
851 // RRsfwSession::StartServer |
|
852 // Starts the Remote File Engine if it is not running, uses semaphore to |
|
853 // synchronize startup. |
|
854 // (other items were commented in a header). |
|
855 // ---------------------------------------------------------------------------- |
|
856 // |
|
857 TInt RRsfwSession::StartServer(const TDesC& aServerName) |
|
858 { |
|
859 TFindServer findRfe(aServerName); |
|
860 TFullName name; |
|
861 |
|
862 TInt result = findRfe.Next(name); |
|
863 if (result == KErrNone) |
|
864 { |
|
865 // Server already running |
|
866 return KErrNone; |
|
867 } |
|
868 |
|
869 RSemaphore semaphore; |
|
870 result = semaphore.CreateGlobal(KRfeSemaphoreName, 0); |
|
871 if (result != KErrNone) |
|
872 { |
|
873 return result; |
|
874 } |
|
875 |
|
876 result = CreateServerProcess(aServerName); |
|
877 if (result != KErrNone) |
|
878 { |
|
879 semaphore.Close(); |
|
880 return result; |
|
881 } |
|
882 semaphore.Wait(); |
|
883 semaphore.Close(); |
|
884 |
|
885 return KErrNone; |
|
886 } |
|
887 |
|
888 // ---------------------------------------------------------------------------- |
|
889 // RRsfwSession::CreateServerProcess |
|
890 // Starts the Remote File Engine using name to find the binary |
|
891 // (other items were commented in a header). |
|
892 // ---------------------------------------------------------------------------- |
|
893 // |
|
894 TInt RRsfwSession::CreateServerProcess(const TDesC& aServerName) |
|
895 { |
|
896 // Just load anything that matches with the name |
|
897 const TUidType serverUid(KNullUid, KNullUid, KNullUid); |
|
898 |
|
899 RProcess server; |
|
900 |
|
901 _LIT(KStartCommand, ""); |
|
902 TInt result = server.Create(aServerName, KStartCommand, serverUid); |
|
903 if (result != KErrNone) |
|
904 { |
|
905 return result; |
|
906 } |
|
907 server.Resume(); |
|
908 server.Close(); |
|
909 |
|
910 return KErrNone; |
|
911 } |
|
912 |
|
913 // ---------------------------------------------------------------------------- |
|
914 // RRsfwSession::SendRequest |
|
915 // ---------------------------------------------------------------------------- |
|
916 // |
|
917 TInt RRsfwSession::SendRequest(TInt aOpCode, TInt aDrive, TIpcArgs aArgs) |
|
918 { |
|
919 TInt result = SendReceive(aOpCode, aArgs); |
|
920 if (result == KErrServerTerminated) |
|
921 { |
|
922 // try to restart the server |
|
923 result = Connect(); |
|
924 if (result == KErrNone) |
|
925 { |
|
926 result = SendReceive(aOpCode, aArgs); |
|
927 } |
|
928 } |
|
929 |
|
930 // Disable following codes will fix auto connection of rsfw |
|
931 /* |
|
932 if (result == KErrNotReady) |
|
933 { |
|
934 // try to restore the mount |
|
935 result = SendReceive(EMountByDriveLetter, TIpcArgs(aDrive)); |
|
936 if (result == KErrNone) |
|
937 { |
|
938 result = SendReceive(aOpCode, aArgs); |
|
939 } |
|
940 } |
|
941 */ |
|
942 |
|
943 return result; |
|
944 } |
|
945 |
|
946 // End of File |
|