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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 * Contributors: |
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13 * |
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14 * Description: AlfSynchronizer waits for synchronization to complete |
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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 #include "alfsynchronizer.h" |
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20 #include "alfrenderstageutils.h" |
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21 |
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22 // Timeout in microseconds - 500 ms. |
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23 const TInt KAlfSyncTimeout = 500000; |
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24 |
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25 // -------------------------------------------------------------------------- |
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26 // CAlfSynchronizer::NewL |
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27 // -------------------------------------------------------------------------- |
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28 // |
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29 CAlfSynchronizer* CAlfSynchronizer::NewL() |
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30 { |
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31 CAlfSynchronizer* self = new (ELeave) CAlfSynchronizer; |
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32 CleanupStack::PushL(self); |
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33 self->ConstructL(); |
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34 CleanupStack::Pop(self); |
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35 return self; |
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36 } |
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37 |
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38 // -------------------------------------------------------------------------- |
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39 // CAlfSynchronizer::~CAlfSynchronizer |
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40 // -------------------------------------------------------------------------- |
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41 // |
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42 CAlfSynchronizer::~CAlfSynchronizer() |
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43 { |
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44 Cancel(); |
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45 |
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46 iProperty.Close(); |
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47 |
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48 delete iWait; |
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49 delete iTimeout; |
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50 } |
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51 |
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52 // -------------------------------------------------------------------------- |
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53 // CAlfSynchronizer::Start |
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54 // -------------------------------------------------------------------------- |
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55 // |
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56 void CAlfSynchronizer::Start(TInt aId) |
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57 { |
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58 iProperty.Subscribe( iStatus ); |
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59 SetActive(); |
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60 |
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61 TInt value = 0; |
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62 iProperty.Get(value); |
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63 |
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64 if ( value != aId ) |
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65 { |
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66 // Launch timeout AO in case there happens to be deadlock in coretoolkit etc. |
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67 iTimeout->Start( KAlfSyncTimeout, KAlfSyncTimeout, |
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68 TCallBack( CallbackSyncTimeout, this ) ); |
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69 |
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70 // Start wait |
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71 iSynchId = aId; |
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72 iWait->Start(); |
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73 } |
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74 } |
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75 |
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76 // -------------------------------------------------------------------------- |
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77 // CAlfSynchronizer::RunL |
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78 // -------------------------------------------------------------------------- |
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79 // |
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80 void CAlfSynchronizer::RunL() |
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81 { |
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82 if ( !iAsyncStopDone && iStatus.Int() == KErrNone ) |
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83 { |
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84 iProperty.Subscribe( iStatus ); |
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85 SetActive(); |
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86 } |
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87 |
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88 TInt value = 0; |
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89 iProperty.Get(value); |
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90 |
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91 if ( !iAsyncStopDone && value == iSynchId ) |
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92 { |
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93 iWait->AsyncStop(); |
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94 iAsyncStopDone = ETrue; |
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95 } |
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96 } |
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97 |
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98 // -------------------------------------------------------------------------- |
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99 // CAlfSynchronizer::CallbackSyncTimeout |
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100 // -------------------------------------------------------------------------- |
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101 // |
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102 TInt CAlfSynchronizer::CallbackSyncTimeout( TAny* aPtr ) |
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103 { |
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104 ((CAlfSynchronizer*)aPtr)->DoCallbackSyncTimeout(); |
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105 return KErrNone; |
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106 } |
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107 |
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108 // -------------------------------------------------------------------------- |
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109 // CAlfSynchronizer::DoCallbackSyncTimeout |
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110 // -------------------------------------------------------------------------- |
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111 // |
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112 void CAlfSynchronizer::DoCallbackSyncTimeout() |
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113 { |
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114 iTimeout->Cancel(); |
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115 |
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116 if (!iAsyncStopDone) |
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117 { |
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118 iWait->AsyncStop(); |
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119 iAsyncStopDone = ETrue; |
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120 } |
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121 } |
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122 |
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123 // -------------------------------------------------------------------------- |
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124 // CAlfSynchronizer::DoCancel |
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125 // -------------------------------------------------------------------------- |
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126 // |
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127 void CAlfSynchronizer::DoCancel() |
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128 { |
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129 iProperty.Cancel(); |
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130 } |
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131 |
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132 // -------------------------------------------------------------------------- |
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133 // CAlfSynchronizer::CAlfSynchronizer |
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134 // -------------------------------------------------------------------------- |
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135 // |
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136 CAlfSynchronizer::CAlfSynchronizer() |
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137 : CActive( EPriorityHigh ) |
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138 { |
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139 CActiveScheduler::Add(this); |
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140 } |
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141 |
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142 // -------------------------------------------------------------------------- |
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143 // CAlfSynchronizer::ConstructL |
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144 // -------------------------------------------------------------------------- |
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145 // |
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146 void CAlfSynchronizer::ConstructL() |
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147 { |
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148 User::LeaveIfError( iProperty.Attach( KAlfPSUidSynchronizer, KAlfPSKeySynchronizer ) ); |
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149 |
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150 iWait = new (ELeave) CActiveSchedulerWait; |
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151 |
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152 iTimeout = CPeriodic::NewL( CActive::EPriorityHigh ); |
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153 } |