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1 /* |
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2 * Copyright (c) 2010 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 * Description: |
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13 * This class contains implementation of CFlexTimerEngine. |
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14 * |
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15 */ |
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16 |
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17 // System include files |
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18 // None |
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19 |
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20 // User include files |
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21 #include "flextimerengine.h" |
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22 #include "flextimercontainer.h" |
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23 #include "flextimerwakeuptimer.h" |
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24 #include "OstTraceDefinitions.h" |
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25 #ifdef OST_TRACE_COMPILER_IN_USE |
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26 #include "flextimerengineTraces.h" |
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27 #endif |
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28 |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // NewL |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 EXPORT_C CFlexTimerEngine* CFlexTimerEngine::NewL() |
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35 { |
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36 CFlexTimerEngine* self = new (ELeave) CFlexTimerEngine(); |
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37 CleanupStack::PushL( self ); |
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38 self->ConstructL(); |
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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 // Destructor |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 CFlexTimerEngine::~CFlexTimerEngine() |
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47 { |
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48 OstTrace0( TRACE_INTERNAL, |
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49 CFLEXTIMERENGINE_CFLEXTIMERENGINE, |
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50 "CFlexTimerEngine::~CFlexTimerEngine" ); |
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51 |
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52 delete iFlexTimerContainer; |
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53 delete iWakeUpTimer; |
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54 } |
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55 // --------------------------------------------------------------------------- |
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56 // Add new timer and trap leave. Return Leave code to session. |
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57 // --------------------------------------------------------------------------- |
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58 // |
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59 EXPORT_C TInt CFlexTimerEngine::AddTimer( |
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60 const TTimeIntervalMicroSeconds& aWinStartInterval, |
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61 const TTimeIntervalMicroSeconds& aWinEndInterval, |
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62 TBool aCancelAtSystemTimeChange, |
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63 const MFlexTimerServiceCB* aFlexTimerServiceCB ) |
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64 { |
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65 TRAPD( err, |
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66 iFlexTimerContainer->AddTimerL( aWinStartInterval, |
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67 aWinEndInterval, |
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68 aCancelAtSystemTimeChange, |
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69 aFlexTimerServiceCB ) ); |
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70 |
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71 if ( KErrNone == err ) |
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72 { |
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73 StartTimer(); |
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74 } |
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75 return err; |
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76 } |
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77 // --------------------------------------------------------------------------- |
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78 // Remove timer from container queue and start new wakeup watch timer |
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79 // --------------------------------------------------------------------------- |
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80 // |
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81 EXPORT_C TInt CFlexTimerEngine::CancelTimer( |
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82 const MFlexTimerServiceCB* aFlexTimerServiceCB ) |
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83 { |
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84 TInt error = iFlexTimerContainer->RemoveTimer( aFlexTimerServiceCB ); |
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85 StartTimer(); |
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86 |
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87 return error; |
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88 } |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // Wakeup timer expired, Fire timers according to some algorithm set and |
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92 // restart wakeup timer. |
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93 // --------------------------------------------------------------------------- |
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94 // |
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95 void CFlexTimerEngine::WakeUp() |
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96 { |
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97 OstTrace0( TRACE_INTERNAL, |
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98 CFLEXTIMERENGINE_WAKEUP, |
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99 "CFlexTimerEngine::WakeUp" ); |
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100 |
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101 iFlexTimerContainer->FireTimers( |
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102 CFlexTimerContainer::EFlexTimerAlgorithmLatestPossible ); |
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103 |
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104 StartTimer(); |
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105 } |
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106 // --------------------------------------------------------------------------- |
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107 // System time is changed. Abort all timers that need to be aborted and |
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108 // restart wakeup timer. |
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109 // --------------------------------------------------------------------------- |
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110 // |
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111 void CFlexTimerEngine::SystemTimeChanged() |
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112 { |
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113 OstTrace0( TRACE_INTERNAL, |
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114 CFLEXTIMERENGINE_SYSTEMTIMECHANGED, |
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115 "CFlexTimerEngine::SystemTimeChanged" ); |
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116 |
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117 iFlexTimerContainer->AbortTimersDueToTimeChange( KErrAbort ); |
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118 StartTimer(); |
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119 } |
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120 // --------------------------------------------------------------------------- |
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121 // Private constructor |
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122 // --------------------------------------------------------------------------- |
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123 // |
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124 CFlexTimerEngine::CFlexTimerEngine() : iFlexTimerContainer( NULL ), |
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125 iWakeUpTimer( NULL ) |
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126 { |
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127 OstTrace0( TRACE_INTERNAL, |
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128 DUP_CFLEXTIMERENGINE_CFLEXTIMERENGINE, |
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129 "CFlexTimerEngine::CFlexTimerEngine" ); |
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130 //Nothing to do here |
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131 } |
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132 // --------------------------------------------------------------------------- |
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133 // Private 2nd phase construction |
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134 // --------------------------------------------------------------------------- |
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135 // |
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136 void CFlexTimerEngine::ConstructL() |
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137 { |
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138 iFlexTimerContainer = CFlexTimerContainer::NewL(); |
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139 iWakeUpTimer = CFlexTimerWakeUpTimer::NewL( *this ); |
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140 } |
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141 // --------------------------------------------------------------------------- |
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142 // Stop timer just in case it is already running (e.g. after AddTimer()) |
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143 // and Start new wakeup timer according to current situation in container |
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144 // queues If timeout window has passed fire timers right now. |
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145 // --------------------------------------------------------------------------- |
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146 // |
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147 void CFlexTimerEngine::StartTimer() |
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148 { |
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149 TTimeIntervalMicroSeconds nextTimeout; |
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150 |
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151 // Stop the timer, because, if there are no more pending timeouts, the |
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152 // wake-up timer needs to be stopped. If timeouts are found, the timer is |
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153 // is restarted below. |
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154 iWakeUpTimer->StopTimer(); |
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155 |
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156 if ( iFlexTimerContainer->GetNextTimeout( nextTimeout ) ) |
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157 { |
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158 // If timeout is in the future, timer is started to wake up at that |
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159 // moment. |
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160 if ( nextTimeout > TTimeIntervalMicroSeconds( 0 ) ) |
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161 { |
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162 iWakeUpTimer->StartTimer( nextTimeout ); |
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163 } |
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164 // If timer is due now or in the past, Lets fire those right now. |
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165 else |
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166 { |
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167 WakeUp(); |
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168 } |
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169 } |
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170 // Else no timers, so no need for timeouts. Server is propably about to be |
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171 // deleted. |
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172 } |