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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: Base class for sensors |
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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 "csensorbase.h" |
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20 #include "csensorlimitcondition.h" |
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21 #include "csensorrangecondition.h" |
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22 #include "sensorlistener.h" |
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23 #include "logger.h" |
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24 #include <bautils.h> |
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25 #include <barsc.h> |
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26 |
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27 const TUint JavaUpperTimeFor1970 = 14474675; |
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28 const TUint JavaLowerTimeFor1970 = 254771200; |
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29 |
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30 CSensorBase::~CSensorBase() |
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31 { |
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32 JELOG2(ESensor); |
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33 iConditions.ResetAndDestroy(); |
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34 iConditions.Close(); |
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35 Cancel(); |
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36 delete iActiveScheduler; |
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37 iRunnerThread.Close(); |
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38 iMethodArray.Close(); |
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39 } |
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40 CSensorBase::CSensorBase() : CActive(EPriorityHigh), |
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41 iListeningType(0) |
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42 { |
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43 JELOG2(ESensor); |
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44 } |
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45 |
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46 void CSensorBase::ConstructL() |
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47 { |
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48 JELOG2(ESensor); |
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49 User::LeaveIfError(iRunnerThread.Open(RThread().Id())); |
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50 if (!CActiveScheduler::Current()) |
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51 { |
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52 iActiveScheduler = new(ELeave) CActiveScheduler(); |
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53 CActiveScheduler::Install(iActiveScheduler); |
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54 } |
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55 CActiveScheduler::Add(this); |
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56 } |
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57 |
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58 TInt64 CSensorBase::TimeStamp(const TTime& aTime) |
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59 { |
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60 JELOG2(ESensor); |
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61 // Create a TTime object that represents the Java Date |
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62 // 'epoch' time of 00:00, 1 Jan 1970 |
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63 TInt64 javaEpocTimeNum = |
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64 MAKE_TINT64(JavaUpperTimeFor1970, JavaLowerTimeFor1970); |
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65 TTime javaEpochTime(javaEpocTimeNum); |
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66 // Find difference in microseconds between 'epoch' and EPOC |
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67 // date and adjust to milliseconds |
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68 TTimeIntervalMicroSeconds microInterval = |
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69 aTime.MicroSecondsFrom(javaEpochTime); |
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70 TInt64 intervalNum = microInterval.Int64(); |
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71 intervalNum /= 1000; |
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72 return intervalNum; |
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73 } |
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74 |
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75 void CSensorBase::StartServer() |
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76 { |
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77 JELOG2(ESensor); |
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78 CActiveScheduler::Start(); |
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79 } |
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80 |
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81 void CSensorBase::StopServer() |
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82 { |
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83 JELOG2(ESensor); |
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84 TMethod method(TMethod::EStopServer); |
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85 AsyncCallback(method); |
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86 } |
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87 |
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88 int CSensorBase::StartDataListening(SensorData** aData, |
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89 int aBufferSize, |
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90 long aBufferingPeriod, |
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91 bool aTimestampsIncluded, |
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92 bool aValiditiesIncluded, |
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93 bool aIsOneShot) |
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94 { |
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95 JELOG2(ESensor); |
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96 TMethod method(TMethod::EStartDataListening); |
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97 method.SetSensorData(aData); |
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98 method.SetBufferSize(aBufferSize); |
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99 method.SetBufferingPeriod(aBufferingPeriod); |
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100 method.SetTimestampsIncluded(aTimestampsIncluded); |
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101 method.SetValiditiesIncluded(aValiditiesIncluded); |
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102 method.SetIsOneShot(aIsOneShot); |
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103 AsyncCallback(method); |
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104 return KErrNone; |
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105 } |
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106 |
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107 int CSensorBase::StartConditionListening(int aJavaConditionEval) |
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108 { |
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109 JELOG2(ESensor); |
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110 TMethod method(TMethod::EStartConditionListening); |
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111 method.SetJavaConditionEval(aJavaConditionEval); |
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112 AsyncCallback(method); |
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113 return KErrNone; |
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114 } |
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115 |
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116 int CSensorBase::CancelDataListening() |
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117 { |
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118 JELOG2(ESensor); |
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119 TMethod method(TMethod::ECancelDataListening); |
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120 AsyncCallback(method); |
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121 return KErrNone; |
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122 } |
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123 |
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124 int CSensorBase::StopConditionListening() |
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125 { |
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126 JELOG2(ESensor); |
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127 TMethod method(TMethod::EStopConditionListening); |
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128 AsyncCallback(method); |
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129 return KErrNone; |
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130 } |
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131 |
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132 void CSensorBase::CloseChannel() |
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133 { |
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134 JELOG2(ESensor); |
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135 TMethod method(TMethod::ECloseChannel); |
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136 AsyncCallback(method); |
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137 } |
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138 |
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139 void CSensorBase::AsyncCallback(TMethod aMethod) |
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140 { |
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141 JELOG2(ESensor); |
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142 iMethodArray.Append(aMethod); |
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143 |
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144 // If there is old request ongoing, wait it for completion |
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145 if (iMethodArray.Count() > 1) |
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146 { |
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147 return; |
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148 } |
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149 iStatus = KRequestPending; |
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150 TRequestStatus* status = &iStatus; |
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151 SetActive(); |
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152 iRunnerThread.RequestComplete(status, KErrNone); |
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153 } |
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154 |
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155 void CSensorBase::RunL() |
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156 { |
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157 JELOG2(ESensor); |
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158 // RunL should never be running if there is no method in array |
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159 __ASSERT_DEBUG(iMethodArray.Count() > 0, User::Invariant()); |
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160 TMethod method = iMethodArray[0]; |
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161 |
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162 switch (method.GetMethodType()) |
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163 { |
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164 case TMethod::EStartDataListening: |
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165 { |
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166 iData = method.GetSensorData(); |
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167 iBufferSize = method.GetBufferSize(); |
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168 iBufferingPeriod = 1000 * method.GetBufferingPeriod(); |
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169 iIsOneShot = method.GetIsOneShot(); |
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170 iTimestampsIncluded = method.GetTimestampsIncluded(); |
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171 iValiditiesIncluded = method.GetValiditiesIncluded(); |
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172 |
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173 StartDataListeningL(); |
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174 break; |
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175 } |
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176 case TMethod::EStartConditionListening: |
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177 { |
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178 iJavaConditionEval = method.GetJavaConditionEval(); |
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179 StartConditionListeningL(); |
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180 break; |
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181 } |
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182 case TMethod::EStopConditionListening: |
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183 { |
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184 StopConditionListeningL(); |
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185 break; |
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186 } |
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187 case TMethod::ECancelDataListening: |
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188 { |
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189 CancelDataListeningL(); |
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190 break; |
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191 } |
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192 case TMethod::ECloseChannel: |
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193 { |
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194 CloseChannelL(); |
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195 break; |
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196 } |
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197 case TMethod::EStopServer: |
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198 { |
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199 CActiveScheduler::Stop(); |
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200 break; |
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201 } |
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202 case TMethod::ERemoveCondition: |
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203 { |
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204 RemoveConditionL(method.GetConditionToRemove()); |
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205 break; |
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206 } |
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207 default: |
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208 { |
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209 break; |
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210 } |
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211 } |
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212 // If there is still methods left in array, then request new run |
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213 if (iMethodArray.Count() > 1) |
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214 { |
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215 iStatus = KRequestPending; |
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216 TRequestStatus* status = &iStatus; |
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217 SetActive(); |
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218 iRunnerThread.RequestComplete(status, KErrNone); |
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219 } |
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220 iMethodArray.Remove(0); |
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221 } |
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222 |
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223 void CSensorBase::DoCancel() |
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224 { |
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225 JELOG2(ESensor); |
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226 } |
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227 |
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228 TBool CSensorBase::EvaluateConditions(TReal aValue, TInt aChannelId) |
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229 { |
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230 JELOG2(ESensor); |
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231 TReal currentValue = InterpretValue(aValue); |
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232 TBool matched = EFalse; |
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233 TTime time; |
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234 time.UniversalTime(); |
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235 TInt64 javaTime = TimeStamp(time); |
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236 // Condition array is iterated backwards so we can |
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237 // remove matched elements at the same time |
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238 for (TInt i = iConditions.Count() - 1; i >= 0; i--) |
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239 { |
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240 if (iConditions[ i ]->Evaluate(currentValue, aChannelId)) |
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241 { |
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242 matched = ETrue; |
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243 CSensorConditionBase *condition = iConditions[i]; |
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244 iConditions.Remove(i); |
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245 if (iSensorListener) |
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246 { |
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247 iSensorListener->ConditionMet( |
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248 condition, |
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249 condition->GetChannelId(), |
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250 currentValue, |
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251 javaTime); |
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252 } |
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253 delete condition; |
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254 } |
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255 } |
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256 |
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257 // Also send all values separately if we have java side custom conditions |
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258 if (iJavaConditionEval) |
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259 { |
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260 iSensorListener->ConditionMet(0, aChannelId, currentValue, javaTime); |
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261 } |
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262 return matched; |
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263 } |
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264 |
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265 int CSensorBase::AddCondition( |
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266 void** aHandle, |
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267 int aChannelId, |
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268 double aLowerLimit, |
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269 double aUpperLimit, |
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270 int aLowerOp, |
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271 int aUpperOp) |
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272 { |
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273 JELOG2(ESensor); |
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274 TRAPD(err, AddConditionL(aHandle, aChannelId, |
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275 aLowerLimit, aUpperLimit, aLowerOp, aUpperOp)); |
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276 return err; |
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277 } |
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278 |
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279 void CSensorBase::AddConditionL(void** aHandle, int aChannelId, |
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280 double aLowerLimit, double aUpperLimit, int aLowerOp, |
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281 int aUpperOp) |
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282 { |
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283 JELOG2(ESensor); |
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284 CSensorConditionBase* condition; |
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285 if (aUpperOp < 0) |
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286 { |
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287 condition = new(ELeave)CSensorLimitCondition(aChannelId, |
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288 aLowerLimit, aLowerOp); |
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289 } |
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290 else |
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291 { |
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292 condition = new(ELeave)CSensorRangeCondition(aChannelId, |
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293 aLowerLimit, aUpperLimit, aLowerOp, aUpperOp); |
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294 } |
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295 CleanupStack::PushL(condition); |
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296 iConditions.AppendL(condition); |
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297 CleanupStack::Pop(); |
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298 *aHandle = condition; |
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299 } |
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300 |
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301 int CSensorBase::RemoveCondition(void* aHandle) |
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302 { |
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303 JELOG2(ESensor); |
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304 TMethod method(TMethod::ERemoveCondition); |
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305 method.SetConditionToRemove(aHandle); |
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306 AsyncCallback(method); |
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307 return KErrNone; |
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308 } |
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309 |
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310 void CSensorBase::RemoveConditionL( |
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311 void* aHandle) |
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312 { |
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313 JELOG2(ESensor); |
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314 CSensorConditionBase* condition = (CSensorConditionBase*) aHandle; |
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315 TInt index = iConditions.Find(condition); |
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316 if (index < KErrNone) |
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317 { |
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318 return; |
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319 } |
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320 iConditions.Remove(index); |
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321 delete condition; |
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322 } |
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323 |
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324 |