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1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test\active\t_asyc.cpp |
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15 // Overview: |
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16 // Exercise the priority mechanism of active objects whereby active |
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17 // objects are run in the priority order. |
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18 // API Information: |
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19 // CAsyncOneShot, CActiveScheduler. |
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20 // Details: |
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21 // - Install active scheduler. |
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22 // - Create active objects of different priorities and verify their RunL |
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23 // is called in the priority order. |
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24 // - Verify that a very low priority active object will not get the chance |
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25 // to run if a higher priority object keeps rescheduling itself or a |
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26 // higher priority object stops the active scheduler. |
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27 // Platforms/Drives/Compatibility: |
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28 // All. |
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29 // Assumptions/Requirement/Pre-requisites: |
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30 // Failures and causes: |
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31 // Base Port information: |
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32 // |
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33 // |
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34 |
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35 #include <e32test.h> |
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36 |
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37 enum {ETopPriority=1000,EMiddlePriority=900,ELatePriority=800}; |
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38 |
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39 const TInt KIToldYouSo=666; |
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40 |
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41 class CMyActiveScheduler : public CActiveScheduler |
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42 { |
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43 public: |
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44 virtual void Error(TInt anError) const; |
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45 }; |
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46 |
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47 LOCAL_D RTest test(_L("T_ASYC")); |
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48 |
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49 void CMyActiveScheduler::Error(TInt anError) const |
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50 // |
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51 // Called if any Run() method leaves. |
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52 // |
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53 { |
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54 |
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55 test.Panic(anError,_L("CMyActiveScheduler::Error")); |
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56 } |
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57 |
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58 class CMyMultiShot : public CAsyncOneShot |
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59 { |
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60 public: |
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61 static CMyMultiShot* NewL(TInt aPriority,const TDesC& aMessage,TInt aCount); |
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62 void RunL(); |
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63 CMyMultiShot(TInt aPriority,const TDesC& aMessage,TInt aCount); |
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64 private: |
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65 TInt iCountRemaining; |
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66 TPtrC iMessage; |
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67 }; |
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68 |
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69 class CShouldNeverRun : public CAsyncOneShot |
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70 { |
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71 public: |
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72 void RunL(); |
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73 static CShouldNeverRun* NewL(); |
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74 CShouldNeverRun(); |
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75 }; |
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76 |
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77 class CStopTheScheduler : public CAsyncOneShot |
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78 { |
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79 public: |
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80 CStopTheScheduler(TInt aPriority); |
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81 static CStopTheScheduler* NewL(TInt aPriority); |
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82 void RunL(); |
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83 }; |
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84 |
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85 CMyMultiShot* CMyMultiShot::NewL(TInt aPriority,const TDesC& aMessage,TInt aCount) |
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86 { |
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87 return new(ELeave)CMyMultiShot(aPriority,aMessage,aCount); |
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88 } |
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89 |
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90 CMyMultiShot::CMyMultiShot(TInt aPriority,const TDesC& aMessage,TInt aCount) |
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91 :CAsyncOneShot(aPriority),iMessage(aMessage) |
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92 { |
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93 iCountRemaining=aCount; |
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94 } |
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95 |
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96 void CMyMultiShot::RunL() |
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97 { |
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98 if (iCountRemaining--) |
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99 { |
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100 test.Printf(_L("%S,%d\n\r"),&iMessage,iCountRemaining); |
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101 Call(); |
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102 } |
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103 } |
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104 CShouldNeverRun* CShouldNeverRun::NewL() |
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105 { |
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106 return new(ELeave)CShouldNeverRun; |
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107 } |
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108 |
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109 CShouldNeverRun::CShouldNeverRun() |
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110 :CAsyncOneShot(KMinTInt) |
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111 { |
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112 } |
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113 |
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114 void CShouldNeverRun::RunL() |
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115 { |
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116 User::Panic(_L("CShouldNeverRun"),KIToldYouSo); |
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117 } |
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118 |
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119 CStopTheScheduler* CStopTheScheduler::NewL(TInt aPriority) |
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120 { |
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121 return new(ELeave)CStopTheScheduler(aPriority); |
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122 } |
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123 |
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124 CStopTheScheduler::CStopTheScheduler(TInt aPriority) |
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125 :CAsyncOneShot(aPriority) |
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126 { |
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127 } |
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128 |
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129 void CStopTheScheduler::RunL() |
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130 { |
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131 CActiveScheduler::Stop(); |
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132 } |
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133 |
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134 GLDEF_C TInt E32Main() |
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135 // |
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136 // Test idle objects. |
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137 // |
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138 { |
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139 test.Title(); |
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140 test.Start(_L("Testing idle object cancellation")); |
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141 // |
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142 CMyActiveScheduler* pR=new CMyActiveScheduler; |
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143 test(pR!=NULL); |
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144 CActiveScheduler::Install(pR); |
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145 // |
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146 CShouldNeverRun* pn=CShouldNeverRun::NewL(); |
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147 pn->Call(); |
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148 |
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149 CStopTheScheduler* ps=CStopTheScheduler::NewL(ELatePriority); |
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150 ps->Call(); |
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151 |
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152 CMyMultiShot* multiShot1=CMyMultiShot::NewL(EMiddlePriority,_L("Call Ten times"),10); |
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153 multiShot1->Call(); |
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154 |
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155 CMyMultiShot* multiShot2=CMyMultiShot::NewL(ETopPriority,_L("Call five times"),5); |
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156 multiShot2->Call(); |
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157 |
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158 CActiveScheduler::Start(); |
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159 // |
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160 test.End(); |
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161 return(0); |
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162 } |
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163 |