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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: This module contains the implementation of CTaskManagerImpl |
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15 * class member functions. |
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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 FILES |
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21 |
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22 #include <s32file.h> |
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23 #include <pathinfo.h> |
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24 |
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25 #include "TaskManagerImpl.h" |
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26 #include "SWInstTask.h" |
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27 |
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28 using namespace SwiUI; |
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29 |
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30 _LIT( KTaskDir, "Tasks\\" ); |
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31 _LIT( KTaskListMatch, "*" ); |
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32 |
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33 const TUint KMaxNumLength = 20; |
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34 |
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35 |
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36 // ============================ MEMBER FUNCTIONS =============================== |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // CTaskManagerImpl::CTaskManagerImpl |
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40 // C++ default constructor can NOT contain any code, that |
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41 // might leave. |
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42 // ----------------------------------------------------------------------------- |
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43 // |
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44 CTaskManagerImpl::CTaskManagerImpl() |
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45 { |
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46 } |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CTaskManagerImpl::ConstructL |
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50 // Symbian 2nd phase constructor can leave. |
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51 // ----------------------------------------------------------------------------- |
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52 // |
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53 void CTaskManagerImpl::ConstructL() |
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54 { |
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55 User::LeaveIfError( iRFs.Connect() ); |
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56 } |
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57 |
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58 // ----------------------------------------------------------------------------- |
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59 // CTaskManagerImpl::NewL |
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60 // Two-phased constructor. |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 CTaskManagerImpl* CTaskManagerImpl::NewL() |
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64 { |
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65 CTaskManagerImpl* self = new( ELeave ) CTaskManagerImpl(); |
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66 CleanupStack::PushL( self ); |
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67 self->ConstructL(); |
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68 CleanupStack::Pop( self ); |
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69 return self; |
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70 } |
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71 |
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72 // Destructor |
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73 CTaskManagerImpl::~CTaskManagerImpl() |
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74 { |
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75 iTaskList.ResetAndDestroy(); |
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76 iRFs.Close(); |
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77 } |
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78 |
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79 // ----------------------------------------------------------------------------- |
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80 // TaskManagerImpl::AddTaskL |
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81 // Adds a task to the task list. |
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82 // (other items were commented in a header). |
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83 // ----------------------------------------------------------------------------- |
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84 // |
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85 void CTaskManagerImpl::AddTaskL( CTask* aTask ) |
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86 { |
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87 iTaskList.Append( aTask ); |
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88 } |
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89 |
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90 // ----------------------------------------------------------------------------- |
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91 // TaskManagerImpl::RemoveTaskL |
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92 // Removes a task from the task list. |
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93 // (other items were commented in a header). |
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94 // ----------------------------------------------------------------------------- |
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95 // |
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96 void CTaskManagerImpl::RemoveTaskL( CTask* aTask ) |
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97 { |
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98 TInt index = iTaskList.Find( aTask ); |
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99 |
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100 if ( aTask->IsPersistent() ) |
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101 { |
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102 RemovePersistentTask( *aTask ); |
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103 } |
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104 |
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105 iTaskList.Remove( index ); |
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106 delete aTask; |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // TaskManagerImpl::FlushTasks |
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111 // Removes tasks from task list without executing them. |
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112 // (other items were commented in a header). |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 void CTaskManagerImpl::FlushTasks() |
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116 { |
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117 while ( iTaskList.Count() ) |
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118 { |
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119 CTask* task = iTaskList[0]; |
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120 iTaskList.Remove( 0 ); |
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121 |
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122 if ( task->IsPersistent() ) |
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123 { |
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124 RemovePersistentTask( *task ); |
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125 } |
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126 |
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127 delete task; |
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128 } |
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129 |
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130 iTaskList.Reset(); |
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131 } |
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132 |
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133 // ----------------------------------------------------------------------------- |
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134 // TaskManagerImpl::ExecutePendingTasksL |
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135 // Executes all pending tasks that are added to the task list within the |
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136 // lifetime of this thread. |
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137 // (other items were commented in a header). |
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138 // ----------------------------------------------------------------------------- |
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139 // |
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140 void CTaskManagerImpl::ExecutePendingTasksL() |
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141 { |
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142 TInt error( KErrNone ); |
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143 |
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144 while ( iTaskList.Count() ) |
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145 { |
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146 CTask* task = iTaskList[0]; |
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147 TRAP( error, task->ExecuteL() ); |
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148 iTaskList.Remove( 0 ); |
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149 |
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150 if ( error == KErrNone && task->IsPersistent() ) |
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151 { |
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152 RemovePersistentTask( *task ); |
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153 } |
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154 |
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155 delete task; |
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156 } |
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157 |
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158 iTaskList.Reset(); |
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159 |
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160 if ( error != KErrNone ) |
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161 { |
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162 User::Leave( error ); |
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163 } |
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164 } |
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165 |
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166 // ----------------------------------------------------------------------------- |
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167 // TaskManagerImpl::ExecuteRecoveryTasksL |
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168 // Executes all tasks from non persistent and persistent memory. |
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169 // (other items were commented in a header). |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 void CTaskManagerImpl::ExecuteRecoveryTasksL() |
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173 { |
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174 TInt error( KErrNone ); |
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175 |
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176 PopulatePersistentTasksL(); |
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177 |
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178 while ( iTaskList.Count() ) |
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179 { |
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180 CTask* task = iTaskList[0]; |
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181 TRAP( error, task->ExecuteL() ); |
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182 iTaskList.Remove( 0 ); |
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183 |
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184 if ( task->IsPersistent() ) |
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185 { |
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186 RemovePersistentTask( *task ); |
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187 } |
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188 |
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189 delete task; |
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190 } |
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191 |
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192 iTaskList.Reset(); |
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193 DeleteTaskFilesL(); |
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194 |
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195 if ( error != KErrNone ) |
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196 { |
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197 User::Leave( error ); |
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198 } |
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199 } |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // TaskManagerImpl::CommitL |
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203 // Writes all persistent tasks from the task list to a persistent storage. |
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204 // (other items were commented in a header). |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 void CTaskManagerImpl::CommitL() |
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208 { |
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209 CreateTaskDirL(); |
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210 |
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211 for ( TInt index = 0; index < iTaskList.Count(); index++ ) |
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212 { |
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213 CTask* task = iTaskList[index]; |
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214 |
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215 // Write to store only if this task is persistent and it has no id |
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216 // (already written) |
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217 if ( task->IsPersistent() && !task->Id() ) |
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218 { |
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219 // Get an id for the task |
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220 TInt id = GetFreeTaskIdL(); |
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221 task->SetId( id ); |
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222 |
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223 // Create stream |
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224 RFileWriteStream stream; |
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225 stream.PushL(); |
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226 TFileName filePath; |
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227 GetTaskFilePath( filePath, id ); |
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228 User::LeaveIfError( stream.Create( iRFs, filePath, EFileWrite ) ); |
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229 |
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230 // Externalize task |
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231 stream.WriteInt32L( task->ImplementationUid().iUid ); |
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232 stream << *task; |
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233 stream.CommitL(); |
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234 CleanupStack::PopAndDestroy(); // stream |
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235 } |
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236 } |
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237 } |
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238 |
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239 // ----------------------------------------------------------------------------- |
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240 // TaskManagerImpl::IncreaseClientCount |
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241 // Increase the count of clients. |
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242 // (other items were commented in a header). |
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243 // ----------------------------------------------------------------------------- |
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244 // |
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245 void CTaskManagerImpl::IncreaseClientCount() |
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246 { |
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247 ++iClientCount; |
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248 } |
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249 |
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250 // ----------------------------------------------------------------------------- |
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251 // TaskManagerImpl::DecreaseClientCount |
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252 // Decrease the count of clients. |
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253 // (other items were commented in a header). |
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254 // ----------------------------------------------------------------------------- |
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255 // |
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256 void CTaskManagerImpl::DecreaseClientCount() |
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257 { |
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258 --iClientCount; |
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259 } |
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260 |
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261 // ----------------------------------------------------------------------------- |
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262 // TaskManagerImpl::CanBeFreed |
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263 // Indicates if no more clients have open instances and memory can be freed. |
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264 // (other items were commented in a header). |
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265 // ----------------------------------------------------------------------------- |
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266 // |
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267 TBool CTaskManagerImpl::CanBeFreed() |
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268 { |
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269 if ( iClientCount > 0 ) |
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270 { |
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271 return EFalse; |
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272 } |
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273 else |
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274 { |
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275 return ETrue; |
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276 } |
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277 } |
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278 |
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279 // ----------------------------------------------------------------------------- |
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280 // TaskManagerImpl::RemovePersistentTask |
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281 // Removes task from persistent storage. |
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282 // (other items were commented in a header). |
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283 // ----------------------------------------------------------------------------- |
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284 // |
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285 void CTaskManagerImpl::RemovePersistentTask( const CTask& aTask ) |
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286 { |
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287 // Remove only if task is committed, i.e. it has an id. |
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288 if ( aTask.Id() ) |
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289 { |
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290 TFileName fileName; |
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291 GetTaskFilePath( fileName, aTask.Id() ); |
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292 iRFs.Delete( fileName ); |
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293 } |
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294 } |
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295 |
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296 // ----------------------------------------------------------------------------- |
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297 // TaskManagerImpl::DeleteTaskFilesL |
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298 // Deletes all tasks from persistent storage. |
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299 // (other items were commented in a header). |
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300 // ----------------------------------------------------------------------------- |
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301 // |
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302 void CTaskManagerImpl::DeleteTaskFilesL() |
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303 { |
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304 TFileName fileMatch; |
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305 GetTaskDir( fileMatch ); |
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306 fileMatch.Append( KTaskListMatch ); |
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307 |
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308 CFileMan* fileMan = CFileMan::NewL( iRFs ); |
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309 fileMan->Delete( fileMatch ); |
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310 delete fileMan; |
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311 } |
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312 |
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313 // ----------------------------------------------------------------------------- |
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314 // TaskManagerImpl::CreateTaskDirL |
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315 // Creates the directory where persistent tasks are stored. |
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316 // (other items were commented in a header). |
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317 // ----------------------------------------------------------------------------- |
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318 // |
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319 void CTaskManagerImpl::CreateTaskDirL() |
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320 { |
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321 TInt drive = 0; |
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322 iRFs.CharToDrive( TParsePtrC( PathInfo::PhoneMemoryRootPath() ).Drive()[0], drive ); |
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323 iRFs.CreatePrivatePath( drive ); |
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324 |
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325 TFileName taskDir; |
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326 GetTaskDir( taskDir ); |
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327 iRFs.MkDir( taskDir ); |
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328 } |
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329 |
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330 // ----------------------------------------------------------------------------- |
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331 // TaskManagerImpl::GetTaskDir |
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332 // Gets the directory where persistent tasks are stored. |
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333 // (other items were commented in a header). |
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334 // ----------------------------------------------------------------------------- |
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335 // |
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336 void CTaskManagerImpl::GetTaskDir( TDes& aFilePath ) |
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337 { |
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338 iRFs.PrivatePath( aFilePath ); |
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339 aFilePath.Insert( 0, TParsePtrC( PathInfo::PhoneMemoryRootPath() ).Drive() ); |
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340 aFilePath.Append( KTaskDir ); |
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341 } |
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342 |
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343 // ----------------------------------------------------------------------------- |
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344 // TaskManagerImpl::GetTaskFilePath |
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345 // Gets the full path to the persistent task file. |
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346 // (other items were commented in a header). |
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347 // ----------------------------------------------------------------------------- |
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348 // |
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349 void CTaskManagerImpl::GetTaskFilePath( TDes& aFilePath, TInt aTaskId ) |
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350 { |
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351 GetTaskDir( aFilePath ); |
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352 aFilePath.AppendNum( aTaskId ); |
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353 } |
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354 |
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355 // ----------------------------------------------------------------------------- |
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356 // TaskManagerImpl::PopulatePersistentTasksL |
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357 // Reads all persistent task from storage and populates the task list. |
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358 // (other items were commented in a header). |
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359 // ----------------------------------------------------------------------------- |
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360 // |
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361 void CTaskManagerImpl::PopulatePersistentTasksL() |
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362 { |
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363 // Get task dir matcher |
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364 HBufC* taskDir = HBufC::NewLC( KMaxFileName ); |
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365 TPtr dirPtr( taskDir->Des() ); |
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366 GetTaskDir( dirPtr ); |
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367 dirPtr.Append( KTaskListMatch ); |
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368 |
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369 // Get dir contents |
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370 CDir* dirList; |
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371 iRFs.GetDir( dirPtr, KEntryAttMaskSupported, ESortByDate, dirList ); |
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372 |
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373 if ( dirList ) |
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374 { |
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375 CleanupStack::PushL( dirList ); |
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376 |
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377 HBufC* taskPath = HBufC::NewLC( KMaxFileName ); |
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378 TPtr pathPtr( taskPath->Des() ); |
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379 GetTaskDir( dirPtr ); |
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380 |
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381 // Go through the list and internalize tasks |
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382 for ( TInt index = 0; index < dirList->Count(); index++ ) |
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383 { |
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384 pathPtr.Copy( dirPtr ); |
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385 pathPtr.Append( (*dirList)[index].iName ); |
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386 |
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387 // Create stream |
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388 RFileReadStream stream; |
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389 stream.PushL(); |
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390 User::LeaveIfError( stream.Open( iRFs, pathPtr, EFileRead ) ); |
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391 |
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392 // Internalize task |
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393 TUid uid; |
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394 uid.iUid = stream.ReadInt32L(); |
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395 CTask* task = CTask::NewL( uid, ETrue ); |
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396 stream >> *task; |
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397 iTaskList.Append( task ); |
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398 CleanupStack::PopAndDestroy(); // stream |
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399 } |
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400 |
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401 CleanupStack::PopAndDestroy( 2, dirList ); |
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402 } |
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403 CleanupStack::PopAndDestroy( taskDir ); |
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404 } |
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405 |
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406 // ----------------------------------------------------------------------------- |
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407 // TaskManagerImpl::GetFreeTaskIdL |
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408 // Gets the next free id that can be assigned to a task. |
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409 // (other items were commented in a header). |
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410 // ----------------------------------------------------------------------------- |
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411 // |
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412 TInt CTaskManagerImpl::GetFreeTaskIdL() |
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413 { |
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414 TInt result( 0 ); |
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415 |
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416 // Get task dir matcher |
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417 HBufC* taskDir = HBufC::NewL( KMaxFileName ); |
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418 TPtr dirPtr( taskDir->Des() ); |
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419 GetTaskDir( dirPtr ); |
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420 dirPtr.Append( KTaskListMatch ); |
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421 |
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422 // Get dir contents |
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423 CDir* dirList; |
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424 iRFs.GetDir( dirPtr, KEntryAttMaskSupported, ESortByDate, dirList ); |
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425 delete taskDir; |
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426 |
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427 if ( dirList ) |
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428 { |
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429 // Find the first free slot |
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430 TInt index( 0 ); |
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431 while ( index < dirList->Count() ) |
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432 { |
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433 TBuf<KMaxNumLength> temp; |
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434 // Make sure that first index is 1 |
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435 temp.Num( index + 1 ); |
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436 if ( TParsePtrC( (*dirList)[index].iName ).Name() != temp ) |
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437 { |
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438 break; |
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439 } |
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440 ++index; |
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441 } |
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442 |
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443 delete dirList; |
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444 // Make sure that the first index is 1 |
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445 result = index + 1; |
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446 } |
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447 |
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448 return result; |
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449 } |
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450 |
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451 // End of File |