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1 /* |
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2 * Copyright (c) 2008 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: process monitor. |
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15 * |
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16 */ |
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17 |
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18 #include "hsprocessmonitor.h" |
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19 |
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20 // ========================= MEMBER FUNCTIONS ================================== |
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21 |
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22 // ----------------------------------------------------------------------------- |
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23 // CHsProcessMonitor::NewL() |
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24 // Two-phased constructor |
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25 // ----------------------------------------------------------------------------- |
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26 CHsProcessMonitor* CHsProcessMonitor::NewL( const TInt iProcessId, |
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27 MHsProcessMonitorObserver& aObserver ) |
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28 { |
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29 CHsProcessMonitor* self = new ( ELeave ) CHsProcessMonitor( iProcessId, |
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30 aObserver ); |
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31 CleanupStack::PushL( self ); |
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32 self->ConstructL(); |
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33 CleanupStack::Pop( self ); |
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34 return self; |
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35 } |
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36 |
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37 // ----------------------------------------------------------------------------- |
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38 // CHsProcessMonitor::~CHsProcessMonitor() |
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39 // Destructor. |
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40 // ----------------------------------------------------------------------------- |
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41 // |
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42 CHsProcessMonitor::~CHsProcessMonitor() |
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43 { |
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44 Cancel(); |
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45 SecureProcessHandleAsClosed(); |
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46 iProcessId = KErrNotFound; |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CHsProcessMonitor::AttachMonitor() |
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51 // Attach monitor |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 TInt CHsProcessMonitor::AttachMonitor() |
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55 { |
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56 SecureProcessHandleAsClosed(); |
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57 |
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58 TInt error = iProcess.Open( iProcessId, EOwnerProcess ); |
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59 |
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60 if( error == KErrNone ) |
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61 { |
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62 iProcessHandleOpen = ETrue; |
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63 } |
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64 |
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65 return error; |
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66 } |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // CHsProcessMonitor::StartMonitor() |
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70 // Start monitor |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 TInt CHsProcessMonitor::StartMonitor() |
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74 { |
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75 TInt error = KErrNone; |
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76 |
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77 if( !iProcessHandleOpen ) |
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78 { |
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79 error = AttachMonitor(); |
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80 } |
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81 |
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82 if( error == KErrNone ) |
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83 { |
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84 iProcess.Logon( iStatus ); |
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85 SetActive(); |
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86 } |
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87 |
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88 return error; |
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89 } |
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90 |
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91 // ----------------------------------------------------------------------------- |
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92 // CHsProcessMonitor::CHsProcessMonitor() |
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93 // C++ default constructor can NOT contain any code, that might leave. |
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94 // ----------------------------------------------------------------------------- |
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95 CHsProcessMonitor::CHsProcessMonitor( const TInt aProcessId, |
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96 MHsProcessMonitorObserver& aObserver ) : |
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97 CActive( EPriorityStandard ), |
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98 iProcessId( aProcessId ), |
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99 iObserver( aObserver ), |
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100 iProcessHandleOpen( EFalse ) |
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101 { |
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102 CActiveScheduler::Add( this ); |
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103 } |
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104 |
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105 // ----------------------------------------------------------------------------- |
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106 // CHsProcessMonitor::ConstructL() |
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107 // Symbian 2nd phase constructor can leave. |
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108 // ----------------------------------------------------------------------------- |
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109 // |
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110 void CHsProcessMonitor::ConstructL() |
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111 { |
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112 } |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // CHsProcessMonitor::RunL |
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116 // ----------------------------------------------------------------------------- |
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117 // |
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118 void CHsProcessMonitor::RunL() |
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119 { |
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120 iProcess.LogonCancel( iStatus ); |
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121 |
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122 const TInt error = iStatus.Int(); |
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123 |
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124 if( error == KErrCancel ) |
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125 { |
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126 } |
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127 else if( error == KErrNoMemory ) |
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128 { |
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129 User::Leave( KErrNoMemory ); |
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130 } |
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131 else |
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132 { |
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133 const TExitType exitType = iProcess.ExitType(); |
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134 if( exitType == EExitPending ) |
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135 { |
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136 User::LeaveIfError( StartMonitor() ); |
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137 } |
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138 else |
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139 { |
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140 iObserver.ProcessEnded( exitType, |
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141 iProcess.ExitReason(), |
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142 iProcess.ExitCategory() ); |
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143 } |
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144 } |
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145 } |
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146 |
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147 // ----------------------------------------------------------------------------- |
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148 // CHsProcessMonitor::DoCancel() |
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149 // From CActive. |
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150 // ----------------------------------------------------------------------------- |
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151 // |
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152 void CHsProcessMonitor::DoCancel() |
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153 { |
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154 iProcess.LogonCancel( iStatus ); |
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155 } |
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156 |
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157 // ----------------------------------------------------------------------------- |
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158 // CHsProcessMonitor::RunError() |
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159 // From CActive. |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 TInt CHsProcessMonitor::RunError( TInt aError ) |
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163 { |
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164 iObserver.ProcessMonitoringError( aError ); |
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165 |
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166 // Observer will handle error. Return green light. |
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167 return KErrNone; |
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168 } |
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169 |
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170 // ----------------------------------------------------------------------------- |
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171 // CHsProcessMonitor::SecureProcessHandleAsClosed() |
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172 // Close process handle if open |
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173 // ----------------------------------------------------------------------------- |
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174 // |
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175 void CHsProcessMonitor::SecureProcessHandleAsClosed() |
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176 { |
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177 if( iProcessHandleOpen ) |
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178 { |
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179 iProcess.Close(); |
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180 iProcessHandleOpen = EFalse; |
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181 } |
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182 } |
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183 |
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184 // End of File |