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1 /* |
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2 * Copyright (c) 2004-2006 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 * CMmsViewerOperation |
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16 * |
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17 */ |
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18 |
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19 |
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20 |
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21 // ========== INCLUDE FILES ================================ |
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22 #include <e32std.h> |
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23 |
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24 #include "MmsMtmConst.h" // For logging support |
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25 |
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26 #include "MmsViewerOperation.h" |
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27 |
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28 // ========== EXTERNAL DATA STRUCTURES ===================== |
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29 |
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30 // ========== EXTERNAL FUNCTION PROTOTYPES ================= |
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31 |
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32 // ========== CONSTANTS ==================================== |
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33 |
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34 // ========== MACROS ======================================= |
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35 |
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36 // ========== LOCAL CONSTANTS AND MACROS =================== |
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37 |
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38 // ========== MODULE DATA STRUCTURES ======================= |
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39 |
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40 // ========== LOCAL FUNCTION PROTOTYPES ==================== |
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41 |
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42 // ========== LOCAL FUNCTIONS ============================== |
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43 #ifdef CANCEL_TEST_CODE |
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44 // --------------------------------------------------------- |
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45 // Testing code of Cancel |
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46 // --------------------------------------------------------- |
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47 // |
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48 class CHighOperation : public CActive |
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49 { |
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50 public: |
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51 virtual ~CHighOperation() |
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52 { |
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53 Cancel(); |
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54 } |
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55 |
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56 CHighOperation( CMmsViewerOperation& aObserver, |
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57 TInt aUseRandomCancel ); |
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58 void CompleteSelf(); |
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59 |
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60 /** |
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61 * From CActive |
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62 */ |
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63 void RunL(); |
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64 |
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65 /** |
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66 * From CActive |
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67 */ |
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68 void DoCancel(); |
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69 |
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70 public: |
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71 CMmsViewerOperation& iObserver; |
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72 TInt iUseRandomCancel; |
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73 }; |
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74 |
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75 CHighOperation::CHighOperation( CMmsViewerOperation& aObserver, |
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76 TInt aUseRandomCancel ): |
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77 CActive( EPriorityStandard ), |
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78 iObserver( aObserver ), |
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79 iUseRandomCancel( aUseRandomCancel ) |
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80 { |
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81 CActiveScheduler::Add( this ); |
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82 if ( iUseRandomCancel > 100 ) |
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83 { |
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84 SetPriority( EPriorityStandard + 1); |
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85 } |
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86 if ( iUseRandomCancel < 100 ) |
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87 { |
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88 SetPriority( EPriorityStandard - 1); |
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89 } |
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90 } |
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91 void CHighOperation::CompleteSelf() |
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92 { |
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93 iStatus = KRequestPending; |
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94 TRequestStatus* pStatus = &iStatus; |
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95 SetActive(); |
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96 User::RequestComplete( pStatus, KErrNone ); |
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97 } |
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98 |
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99 void CHighOperation::RunL() |
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100 { |
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101 if ( iUseRandomCancel > 100 ) |
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102 { |
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103 iObserver.Cancel(); |
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104 } |
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105 else |
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106 { |
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107 /*// probability determines frequency |
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108 TTime myTime; |
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109 myTime.HomeTime(); |
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110 TTimeIntervalMicroSeconds micros = myTime.MicroSecondsFrom( 0 ); |
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111 TInt fraction = (TInt)micros.Int64()%99; |
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112 if ( fraction < 0 ) |
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113 fraction = 0 - fraction; |
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114 if ( fraction < iUseRandomCancel ) |
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115 { |
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116 iObserver.Cancel(); |
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117 }*/ |
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118 iObserver.Cancel(); |
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119 } |
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120 |
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121 /*if ( iUseRandomCancel <= 100 ) |
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122 { |
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123 CompleteSelf(); |
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124 }*/ |
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125 } |
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126 |
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127 /** |
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128 * From CActive |
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129 */ |
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130 void CHighOperation::DoCancel() |
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131 { |
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132 } |
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133 |
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134 |
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135 #endif |
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136 |
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137 // ========== MEMBER FUNCTIONS ============================= |
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138 |
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139 // --------------------------------------------------------- |
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140 // CMmsViewerOperation::CMmsViewerOperation |
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141 // |
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142 // Constructor. |
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143 // --------------------------------------------------------- |
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144 // |
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145 CMmsViewerOperation::CMmsViewerOperation( |
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146 MMmsViewerOperationObserver& aObserver, |
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147 CMmsViewerDocument& aDocument, |
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148 RFs& aFs ) : |
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149 CActive( EPriorityStandard ), |
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150 iObserver( aObserver ), |
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151 iDocument( aDocument ), |
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152 iFs( aFs ) |
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153 { |
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154 CActiveScheduler::Add( this ); |
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155 } |
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156 |
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157 |
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158 // --------------------------------------------------------- |
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159 // CMmsViewerOperation::CMmsViewerOperation |
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160 // |
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161 // Destructor. |
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162 // --------------------------------------------------------- |
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163 // |
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164 CMmsViewerOperation::~CMmsViewerOperation() |
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165 { |
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166 #ifdef CANCEL_TEST_CODE |
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167 delete iHighOp; |
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168 #endif |
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169 } |
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170 |
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171 // --------------------------------------------------------- |
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172 // CompleteSelf |
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173 // |
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174 // Sets current operation active and completes it |
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175 // --------------------------------------------------------- |
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176 // |
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177 void CMmsViewerOperation::CompleteSelf( TInt aError ) |
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178 { |
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179 iStatus = KRequestPending; |
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180 SetActive(); |
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181 TRequestStatus* pStatus = &iStatus; |
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182 User::RequestComplete( pStatus, aError ); |
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183 } |
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184 |
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185 // --------------------------------------------------------- |
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186 // SetActiveNoCompleteSelf |
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187 // |
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188 // Sets active but does not complete |
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189 // --------------------------------------------------------- |
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190 // |
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191 void CMmsViewerOperation::SetActiveNoCompleteSelf( ) |
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192 { |
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193 iStatus = KRequestPending; |
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194 SetActive(); |
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195 } |
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196 |
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197 // --------------------------------------------------------- |
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198 // CompleteActiveSelf |
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199 // |
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200 // Completes already active operation |
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201 // --------------------------------------------------------- |
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202 // |
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203 void CMmsViewerOperation::CompleteActiveSelf( TInt aError ) |
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204 { |
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205 LOGTEXT(_L8("MMSE: CMmsViewerOperation::CompleteActiveSelf")); |
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206 // When CActive based operation is completed, User::RequestComplete sets |
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207 // iStatus to KRequestPending. Then User::RequestComplete calls RThread::RequestComplete(), |
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208 // which copies aReason to iStatus. |
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209 // Operation stays active just until RunL() is called. When RunL() is running, |
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210 // operation is no more active. |
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211 // When RunL() is not yet called and operation is still active, we know that |
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212 // operation is NOT completed, if iStatus == KRequestPending. |
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213 // Note also that if operation has been completed by CompleteSelf(), |
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214 // and Cancel is called(), Cancel() 'eats' the active object. RunL() is not more called. |
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215 if ( IsActive() |
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216 && iStatus == KRequestPending ) |
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217 { |
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218 TRequestStatus* pStatus = &iStatus; |
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219 User::RequestComplete( pStatus, aError ); |
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220 } |
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221 } |
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222 |
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223 // --------------------------------------------------------- |
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224 // IsCompleted |
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225 // --------------------------------------------------------- |
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226 // |
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227 TBool CMmsViewerOperation::IsCompleted( ) |
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228 { |
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229 return ( IsActive() && iStatus != KRequestPending ); |
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230 } |
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231 |
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232 // --------------------------------------------------------- |
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233 // IsCompleted |
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234 // --------------------------------------------------------- |
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235 // |
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236 #ifdef CANCEL_TEST_CODE |
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237 void CMmsViewerOperation::LaunchCancelTestL( TInt aUseRandomCancel ) |
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238 { |
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239 if ( !iHighOp ) |
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240 { |
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241 iHighOp = new (ELeave) CHighOperation( *this, aUseRandomCancel ); |
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242 iHighOp->CompleteSelf(); |
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243 } |
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244 } |
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245 |
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246 void CMmsViewerOperation::CancelCancelTest( ) |
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247 { |
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248 if ( iHighOp ) |
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249 iHighOp->Cancel(); |
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250 delete iHighOp; |
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251 iHighOp = NULL; |
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252 } |
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253 |
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254 #endif |
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255 |
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256 |
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257 // EOF |