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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: Timer class |
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15 * |
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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 #include "WimTimer.h" |
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22 #include "WimConsts.h" |
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23 #include "WimTrace.h" |
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24 |
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25 |
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26 // ============================ MEMBER FUNCTIONS =============================== |
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27 |
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28 // ----------------------------------------------------------------------------- |
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29 // CWimTimer::NewL |
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30 // Two-phased constructor. |
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31 // ----------------------------------------------------------------------------- |
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32 // |
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33 CWimTimer* CWimTimer::NewL( MWimTimerListener* aTimerListener ) |
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34 { |
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35 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::NewL | Begin")); |
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36 CWimTimer *self = new( ELeave ) CWimTimer; |
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37 CleanupStack::PushL( self ); |
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38 self->ConstructL( aTimerListener ); |
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39 CleanupStack::Pop( self ); |
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40 return self; |
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41 } |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // CWimTimer::CWimTimer |
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45 // C++ default constructor can NOT contain any code, that |
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46 // might leave. |
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47 // ----------------------------------------------------------------------------- |
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48 // |
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49 CWimTimer::CWimTimer() : CActive( EPriorityStandard ), iHeartBeatCount( 0 ) |
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50 { |
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51 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::CWimTimer | Begin")); |
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52 } |
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53 |
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54 // Destructor |
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55 CWimTimer::~CWimTimer() |
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56 { |
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57 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::~CWimTimer | Begin")); |
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58 Cancel(); |
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59 iTimer.Close(); |
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60 delete iHeartbeat; |
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61 } |
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62 |
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63 // ----------------------------------------------------------------------------- |
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64 // CWimTimer::ConstructL |
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65 // Symbian 2nd phase constructor can leave. |
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66 // ----------------------------------------------------------------------------- |
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67 // |
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68 void CWimTimer::ConstructL( MWimTimerListener* aTimerListener ) |
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69 { |
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70 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::ConstructL | Begin")); |
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71 User::LeaveIfError( iTimer.CreateLocal() ); |
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72 iTimerListener = aTimerListener; |
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73 CActiveScheduler::Add( this ); |
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74 iDelay = 0; |
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75 iHeartbeat = CHeartbeat::NewL( 0 ); // neutral priority |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CWimTimer::SetCloseAfter |
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80 // Set timeout of timer, delay given in seconds |
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81 // ----------------------------------------------------------------------------- |
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82 // |
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83 void CWimTimer::SetCloseAfter( const RMessage2& aMessage ) |
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84 { |
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85 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::SetCloseAfter | Begin")); |
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86 TInt closeAfter = aMessage.Int0(); |
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87 |
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88 // Check that given value is in limits |
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89 if ( closeAfter < KWimNoTimeout || closeAfter > KWimTimeoutMax ) |
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90 { |
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91 aMessage.Complete( KErrArgument ); |
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92 } |
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93 else // Value is OK, set timer |
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94 { |
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95 DoSetCloseAfter( closeAfter ); |
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96 aMessage.Complete( KErrNone ); |
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97 } |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // CWimTimer::SetCloseAfter |
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102 // Set timeout of timer, delay given in seconds |
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103 // ----------------------------------------------------------------------------- |
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104 // |
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105 void CWimTimer::DoSetCloseAfter( TInt aCloseAfter ) |
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106 { |
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107 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::DoSetCloseAfter | Begin")); |
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108 if ( IsActive() ) // Timeout already set, cancel |
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109 { |
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110 Cancel(); |
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111 } |
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112 if ( aCloseAfter == KWimNoTimeout ) // No timeout, cancel timer |
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113 { |
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114 Cancel(); |
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115 iDelay = KWimNoTimeout; |
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116 } |
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117 else |
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118 { |
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119 iDelay = aCloseAfter * 1000 * 1000; // Timer takes delay in microseconds |
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120 iTimer.After( iStatus, iDelay ); |
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121 SetActive(); |
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122 StartHeartBeat(); |
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123 } |
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124 } |
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125 // ----------------------------------------------------------------------------- |
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126 // CWimTimer::GetCloseAfterL |
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127 // Return delay given in SetCloseAfter in seconds |
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128 // If no timeout is set return -1 (KWimNoTimeout) |
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129 // ----------------------------------------------------------------------------- |
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130 // |
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131 void CWimTimer::GetCloseAfterL( const RMessage2& aMessage ) const |
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132 { |
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133 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::Delay | Begin")); |
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134 |
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135 TInt delay = 0; |
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136 |
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137 if ( iDelay.Int() == KWimNoTimeout ) |
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138 { |
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139 delay = KWimNoTimeout; |
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140 } |
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141 else |
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142 { |
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143 // Timer takes delay in microseconds |
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144 delay = iDelay.Int() / ( 1000 * 1000 ); |
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145 } |
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146 |
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147 TPckgBuf<TInt> closeAfterPckg( delay ); |
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148 aMessage.WriteL( 0, closeAfterPckg ); |
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149 aMessage.Complete( KErrNone ); |
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150 } |
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151 |
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152 // ----------------------------------------------------------------------------- |
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153 // CWimTimer::RunL() |
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154 // Handles an active object’s request completion event |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 void CWimTimer::RunL() |
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158 { |
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159 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::RunL | Begin")); |
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160 if ( iTimerListener ) |
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161 { |
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162 iTimerListener->TimerExpired(); |
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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 // CWimTimer::DoCancel |
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168 // Cancellation of an outstanding request |
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169 // ----------------------------------------------------------------------------- |
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170 // |
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171 void CWimTimer::DoCancel() |
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172 { |
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173 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::DoCancel | Begin")); |
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174 iTimer.Cancel(); |
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175 iHeartbeat->Cancel(); |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // CWimTimer::ResetTimer |
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180 // Resets active timer. |
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181 // ----------------------------------------------------------------------------- |
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182 // |
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183 void CWimTimer::ResetTimer() |
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184 { |
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185 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::ResetTimer | Begin")); |
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186 if ( IsActive() ) |
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187 { |
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188 Cancel(); |
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189 iTimer.After( iStatus, iDelay ); |
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190 SetActive(); |
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191 iHeartbeat->Cancel(); |
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192 StartHeartBeat(); |
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193 } |
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194 } |
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195 |
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196 // ----------------------------------------------------------------------------- |
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197 // CWimTimer::TimeRemainingL |
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198 // Returns remaining time of the timer in seconds. If timer has no timeout |
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199 // then KWimNoTimeout (-1) is returned. |
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200 // ----------------------------------------------------------------------------- |
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201 // |
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202 void CWimTimer::TimeRemainingL( const RMessage2& aMessage ) const |
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203 { |
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204 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::TimeRemainingL | Begin")); |
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205 |
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206 TInt timeRemaining; |
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207 |
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208 if ( iDelay.Int() == KWimNoTimeout ) |
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209 { |
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210 timeRemaining = KWimNoTimeout; |
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211 } |
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212 else |
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213 { |
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214 // Timer takes delay in microseconds |
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215 TInt delay = iDelay.Int() / ( 1000 * 1000 ); |
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216 timeRemaining = delay - iHeartBeatCount; |
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217 } |
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218 |
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219 TPckgBuf<TInt> timeRemainingPckg( timeRemaining ); |
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220 aMessage.WriteL( 0, timeRemainingPckg ); |
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221 aMessage.Complete( KErrNone ); |
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222 } |
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223 |
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224 // ----------------------------------------------------------------------------- |
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225 // CWimTimer::TimeRemaining |
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226 // Used inside wimserver |
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227 // ----------------------------------------------------------------------------- |
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228 // |
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229 TInt CWimTimer::TimeRemaining() const |
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230 { |
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231 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::TimeRemaining | Begin")); |
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232 |
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233 TInt timeRemaining; |
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234 |
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235 if ( iDelay.Int() == KWimNoTimeout ) |
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236 { |
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237 timeRemaining = KWimNoTimeout; |
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238 } |
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239 else |
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240 { |
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241 // Timer takes delay in microseconds |
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242 TInt delay = iDelay.Int() / ( 1000 * 1000 ); |
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243 timeRemaining = delay - iHeartBeatCount; |
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244 } |
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245 |
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246 return timeRemaining; |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CWimTimer::StartHeartBeat |
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251 // Start heart beating |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 void CWimTimer::StartHeartBeat() |
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255 { |
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256 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::StartHeartBeat | Begin")); |
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257 iHeartbeat->Start( ETwelveOClock, this ); // 1 second intervals |
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258 } |
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259 |
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260 // ----------------------------------------------------------------------------- |
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261 // CWimTimer::Beat |
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262 // Beat has occurred, increase counter |
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263 // ----------------------------------------------------------------------------- |
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264 // |
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265 void CWimTimer::Beat() |
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266 { |
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267 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::Beat | Begin")); |
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268 iHeartBeatCount++; |
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269 } |
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270 |
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271 // ----------------------------------------------------------------------------- |
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272 // CWimTimer::Synchronize |
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273 // Synchronize the timer. |
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274 // ----------------------------------------------------------------------------- |
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275 // |
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276 void CWimTimer::Synchronize() |
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277 { |
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278 _WIMTRACE(_L("WIM | WIMServer | CWimTimer::Synchronize | Begin")); |
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279 } |
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280 |
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281 // End of File |