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1 /* |
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2 * Copyright (c) 2002 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: |
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15 * Implementation for the CDosServer class |
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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 #include <e32svr.h> |
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21 #include <f32file.h> |
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22 #include "dosserver.h" |
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23 #include "doseventmanager.h" |
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24 #include "dosfactorybase.h" |
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25 #include "dossession.h" |
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26 #include "dos_debug.h" |
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27 #include <data_caging_path_literals.hrh> |
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28 |
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29 /******************************************************* |
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30 * DEFINITION OF THE DSY TO BE USED BY THIS DOS SERVER * |
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31 ********************************************************/ |
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32 |
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33 // This file tells the name of the DSY -module to be loaded. |
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34 _LIT(KDosServerIniFile,"Z:\\private\\101f6efa\\DosServer.ini"); |
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35 |
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36 // The path where the DSY-module binary must recide. This is hardcoded for |
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37 // security reasons. |
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38 _LIT(KDSYBinaryLocDrive, "z:"); |
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39 |
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40 // |
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41 // --------------------------------------------------------- |
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42 // CDosServer Constructor |
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43 // --------------------------------------------------------- |
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44 // |
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45 CDosServer::CDosServer() |
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46 : CPolicyServer( CActive::EPriorityStandard, KDosServerPolicy ) |
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47 { |
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48 iSessionCount=0; |
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49 iContainerIx = NULL; |
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50 iDosFactory = NULL; |
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51 iLibLoaded = EFalse; |
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52 iCurrentFreeDiskSpaceRequest = NULL; |
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53 } |
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54 |
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55 |
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56 // |
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57 // --------------------------------------------------------- |
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58 // CDosServer Desctructor |
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59 // --------------------------------------------------------- |
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60 // |
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61 CDosServer::~CDosServer() |
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62 { |
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63 COM_TRACE_( "[DOSSERVER]\t CDosServer::~CDosServer()" ); |
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64 |
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65 // Delete our own stuff |
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66 delete iEventManager; |
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67 |
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68 //We delete here all the open Sessions |
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69 //This is done also by ~CServer but we do it here because it must be done before |
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70 //deleting iContainerIx since iContainerIx will try to delete the CObjects that are |
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71 //referenced by the Session's containers |
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72 |
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73 CDosSession* session=NULL; |
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74 iSessionIter.SetToFirst(); |
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75 while((session = (CDosSession*)(iSessionIter++)) != NULL) |
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76 { |
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77 delete session; |
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78 } |
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79 |
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80 if ( iFileSystemNotifier ) |
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81 { |
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82 COM_TRACE_( "CDosServer::~CDosServer(), deleting iFileSytemNotifier" ); |
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83 iFileSystemNotifier->Cancel(); |
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84 delete iFileSystemNotifier; |
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85 } |
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86 delete iDosFactory; |
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87 delete iContainerIx; |
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88 |
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89 COM_TRACE_( "[DOSSERVER]\t CDosServer::~CDosServer() - end" ); |
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90 |
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91 //Check if RLibrary::Load() has been called |
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92 if (iLibLoaded) |
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93 { |
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94 iLib.Close(); |
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95 iLibLoaded = EFalse; |
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96 } |
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97 |
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98 if ( iSaeThread ) |
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99 { |
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100 delete iSaeThread; |
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101 } |
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102 } |
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103 |
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104 // |
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105 // --------------------------------------------------------- |
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106 // CDosServer::ConstructL |
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107 // --------------------------------------------------------- |
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108 // |
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109 |
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110 void CDosServer::ConstructL() |
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111 { |
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112 User::RenameThread(KDosServerName); |
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113 // set this as a system thread so if it crashes the phone will restart |
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114 User::SetCritical(User::ESystemCritical); |
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115 COM_TRACE_( "CDosServer::ConstructL(), creating iFileSytemNotifier" ); |
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116 iFileSystemNotifier = CSharedDataFileSystemNotifier::NewL(*this); |
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117 |
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118 iEventManager = CDosEventManager::NewL(); |
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119 LoadDsyModuleL(); |
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120 iContainerIx = CObjectConIx::NewL(); |
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121 |
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122 StartL(KDosServerName); |
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123 |
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124 iSaeThread = CSaeThread::NewL(); |
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125 iSaeThread->StartThreadL(); |
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126 } |
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127 |
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128 // |
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129 // --------------------------------------------------------- |
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130 // CDosServer::NewL |
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131 // --------------------------------------------------------- |
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132 // |
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133 CDosServer* CDosServer::NewL() |
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134 { |
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135 CDosServer* self=new(ELeave) CDosServer; |
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136 CleanupStack::PushL(self); |
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137 self->ConstructL(); |
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138 CleanupStack::Pop(); |
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139 |
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140 return self; |
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141 } |
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142 |
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143 // |
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144 // --------------------------------------------------------- |
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145 // CDosServer::LoadDsyModuleL |
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146 // --------------------------------------------------------- |
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147 // |
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148 |
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149 void CDosServer::LoadDsyModuleL() |
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150 { |
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151 COM_TRACE_( "[DOSSERVER]\t CDosServer::LoadDsyModuleL()" ); |
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152 |
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153 //Finding out the name of the Dsy file. |
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154 RFs fs; |
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155 RFile file; |
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156 |
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157 User::LeaveIfError(fs.Connect()); |
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158 CleanupClosePushL(fs); |
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159 |
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160 COM_TRACE_( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() - fs connected" ); |
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161 |
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162 COM_TRACE_( "[DOSSERVER]\t Opening file: Z:\\system\\data\\DosServer.ini" ); |
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163 COM_TRACE_( "[DOSSERVER]\t error occurs if above file is missing from build!" ); |
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164 |
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165 User::LeaveIfError(file.Open(fs,KDosServerIniFile,EFileRead)); |
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166 CleanupClosePushL(file); |
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167 |
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168 COM_TRACE_( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() - file opened" ); |
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169 |
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170 TBuf8<KMaxFileName> rawFileName; |
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171 |
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172 User::LeaveIfError(file.Read(rawFileName)); |
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173 |
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174 CleanupStack::PopAndDestroy(2); //fs and file are closed |
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175 |
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176 COM_TRACE_( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() - file readed" ); |
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177 |
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178 HBufC* unicodeFileName = HBufC::NewLC(rawFileName.Length()); |
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179 TPtr fileNamePtr(unicodeFileName->Des()); |
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180 fileNamePtr.Copy(rawFileName); |
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181 |
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182 COM_TRACE_1( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() - name: %S", unicodeFileName ); |
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183 |
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184 //Loading of the Dsy module |
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185 TLibraryFunction entryPoint; |
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186 |
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187 // Check for data caging support; |
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188 // Template parameter defines the maximum length for descriptor. |
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189 // After copy the length is set to same as the copied descriptor. |
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190 TBuf<128> dsyBinaryLoc(KDC_SHARED_LIB_DIR); |
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191 dsyBinaryLoc.Insert(0, KDSYBinaryLocDrive); |
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192 |
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193 #ifdef _DEBUG // Trace used binary path. |
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194 HBufC* dsyFileName = HBufC::NewLC(dsyBinaryLoc.Length()); |
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195 TPtr fNPtr(dsyFileName->Des()); |
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196 fNPtr.Copy(dsyBinaryLoc); |
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197 |
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198 COM_TRACE_1( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() - bin path: %S", dsyFileName ); |
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199 CleanupStack::PopAndDestroy(); //dsyFileName |
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200 #endif |
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201 User::LeaveIfError(iLib.Load(fileNamePtr, dsyBinaryLoc)); |
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202 |
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203 iLibLoaded = ETrue; //RLibrary::Load() has been called |
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204 entryPoint = iLib.Lookup(1); //Polymorphic DLL only 1 entry point. |
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205 iDosFactory = (CDosFactoryBase *)entryPoint(); |
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206 iDosFactory->iEventManager = CONST_CAST(CDosEventManager*,iEventManager); |
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207 CleanupStack::PopAndDestroy(); //unicodeFileName |
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208 |
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209 COM_TRACE_( "[DOSSERVER]\t CDosServer::LoadDsyModuleL() completed" ); |
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210 } |
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211 |
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212 |
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213 // |
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214 // --------------------------------------------------------- |
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215 // CDosServer::RunError |
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216 // --------------------------------------------------------- |
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217 // |
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218 TInt CDosServer::RunError(TInt aError) |
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219 { |
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220 // |
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221 // Handles an error from CDosSession::ServiceL() |
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222 // Report the error to the client |
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223 // |
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224 COM_TRACE_1( "[DOSSERVER]\t CDosServer::RunError() error: %d", aError ); |
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225 |
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226 Message().Complete(aError); |
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227 ReStart(); |
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228 return KErrNone; // handled the error fully |
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229 } |
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230 |
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231 // |
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232 // --------------------------------------------------------- |
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233 // CDosServer::NewSessionL |
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234 // --------------------------------------------------------- |
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235 // |
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236 |
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237 CSession2* CDosServer::NewSessionL(const TVersion&) const |
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238 { |
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239 COM_TRACE_( "CDosServer::NewSessionL()" ); |
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240 // |
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241 // Create a new client session. |
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242 // |
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243 return new(ELeave) CDosSession(); |
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244 } |
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245 |
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246 CSession2* CDosServer::NewSessionL(const TVersion& aVersion, const RMessage2& /*aMessage*/) const |
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247 { |
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248 return NewSessionL(aVersion); |
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249 } |
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250 // |
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251 // --------------------------------------------------------- |
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252 // CDosServer::AddSession |
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253 // --------------------------------------------------------- |
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254 // |
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255 |
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256 void CDosServer::AddSession() |
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257 { |
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258 // |
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259 // A new session is being created |
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260 // |
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261 ++iSessionCount; |
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262 COM_TRACE_1( "[DOSSERVER]\t ** CDosServer - Add session, count: %d", iSessionCount ); |
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263 } |
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264 |
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265 // |
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266 // --------------------------------------------------------- |
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267 // CDosServer::DropSession |
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268 // --------------------------------------------------------- |
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269 // |
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270 |
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271 void CDosServer::DropSession() |
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272 { |
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273 // |
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274 // A session is being destroyed |
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275 // |
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276 iSessionCount--; |
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277 COM_TRACE_1( "[DOSSERVER]\t ** CDosServer - Drop session, count: %d", iSessionCount ); |
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278 } |
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279 |
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280 // |
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281 // --------------------------------------------------------- |
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282 // CDosServer::ThreadStart |
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283 // |
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284 // It Starts the Server's Thread and the Server |
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285 // --------------------------------------------------------- |
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286 // |
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287 |
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288 EXPORT_C TInt CDosServer::ThreadStart( CDosServer::TSignal& /*aSignal*/ ) |
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289 { |
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290 // Get thread that started us |
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291 __UHEAP_MARK; |
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292 TInt err(KErrNone); |
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293 |
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294 CTrapCleanup* cleanup = NULL; |
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295 CActiveScheduler* scheduler = NULL; |
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296 CDosServer* server = NULL; |
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297 TInt srvErr=KErrNoMemory; |
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298 |
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299 cleanup = CTrapCleanup::New(); |
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300 scheduler = new CActiveScheduler; |
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301 |
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302 if ( cleanup && scheduler ) |
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303 { |
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304 CActiveScheduler::Install( scheduler ); |
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305 TRAP(srvErr, server = CDosServer::NewL()); // adds server in scheduler |
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306 } |
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307 |
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308 if ( !cleanup || !scheduler || srvErr!=KErrNone ) |
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309 { |
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310 if ( scheduler ) |
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311 { |
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312 delete scheduler; |
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313 scheduler = NULL; |
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314 } |
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315 if ( server ) |
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316 { |
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317 delete server; |
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318 server = NULL; |
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319 } |
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320 if ( cleanup ) |
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321 { |
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322 delete cleanup; |
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323 cleanup = NULL; |
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324 } |
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325 err = srvErr; |
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326 } |
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327 |
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328 // signal that we've started |
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329 COM_TRACE_( "CDosServer::ThreadStart - calling SignalClient()" ); |
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330 SignalClient(); |
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331 |
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332 if ( err == KErrNone ) |
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333 { |
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334 // start fielding requests from clients |
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335 CActiveScheduler::Start(); |
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336 |
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337 // comes here if server gets shut down |
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338 |
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339 delete scheduler; |
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340 scheduler = NULL; |
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341 delete server; |
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342 server = NULL; |
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343 delete cleanup; |
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344 cleanup = NULL; |
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345 } |
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346 |
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347 // thread/process exit |
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348 __UHEAP_MARKEND; |
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349 return err; |
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350 } |
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351 |
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352 // |
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353 // --------------------------------------------------------- |
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354 // CDosServer::SignalClient |
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355 // |
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356 // Signal client we've started. |
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357 // --------------------------------------------------------- |
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358 // |
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359 void CDosServer::SignalClient() |
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360 { |
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361 COM_TRACE_( "[DOSSERVER]\t CDosServer::SignalClient() called" ); |
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362 RSemaphore startupSemaphore; |
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363 if ( startupSemaphore.OpenGlobal( KServerStartupSemaphoreName ) == KErrNone ) |
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364 { |
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365 //Signal the client:The server might have started up successfully or not |
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366 startupSemaphore.Signal(); |
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367 COM_TRACE_( "[DOSSERVER]\t CDosServer::SignalClient() semaphore signalled" ); |
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368 } |
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369 |
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370 startupSemaphore.Close(); |
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371 COM_TRACE_( "[DOSSERVER]\t CDosServer::SignalClient() semaphore closed" ); |
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372 |
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373 // No point to return any error; |
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374 // if signal client fails, startup will freeze anyway. |
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375 } |
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376 |
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377 // |
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378 // RMessage::Panic() also completes the message. This is: |
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379 // (a) important for efficient cleanup within the kernel |
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380 // (b) a problem if the message is completed a second time |
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381 // |
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382 void PanicClient(const RMessage2& aMessage,TDosPanic aPanic) |
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383 { |
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384 COM_TRACE_( "[DOSSERVER]\t CDosServer::RMessage::PanicClient() called" ); |
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385 |
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386 aMessage.Panic(KDosServerName,aPanic); |
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387 } |
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388 |
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389 // |
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390 // --------------------------------------------------------- |
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391 // CDosServer::CurrentDiskFreeSpace |
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392 // |
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393 // Returns current disk space |
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394 // --------------------------------------------------------- |
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395 // |
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396 TInt* CDosServer::CurrentFreeDiskSpaceRequest() |
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397 { |
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398 COM_TRACE_( "CDosServer::CurrentFreeDiskSpaceRequest()" ); |
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399 return iCurrentFreeDiskSpaceRequest; |
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400 } |
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401 |
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402 // |
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403 // --------------------------------------------------------- |
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404 // CDosServer::SetCurrentFreeDiskSpace |
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405 // |
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406 // Sets new current disk space |
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407 // --------------------------------------------------------- |
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408 // |
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409 void CDosServer::SetCurrentFreeDiskSpaceRequest(TInt* diskSpace) |
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410 { |
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411 COM_TRACE_( "CDosServer::SetCurrentFreeDiskSpaceRequest()" ); |
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412 iCurrentFreeDiskSpaceRequest = diskSpace; |
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413 } |
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414 |