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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // requesthandler.cpp |
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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 @file |
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20 @InternalComponent |
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21 */ |
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22 |
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23 #include "crequesthandler.h" |
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24 #include "lbsdevloggermacros.h" |
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25 #include "cpositionerq.h" |
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26 #include "psylogging.h" |
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27 #include "psypanic.h" |
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28 #include "mpositioner.h" |
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29 #include "trequestparameters.h" |
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30 #include "tpositionercall.h" |
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31 |
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32 /* |
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33 * CRequestHandler::~CRequestHandler |
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34 * Destructor. |
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35 */ |
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36 CRequestHandler::~CRequestHandler() |
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37 { |
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38 if(iPowerStandByTimer) |
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39 { |
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40 iPowerStandByTimer->Cancel(); |
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41 } |
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42 |
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43 delete iPowerStandByTimer; |
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44 iPowerStandByTimer = NULL; |
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45 } |
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46 |
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47 /** |
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48 @param aModuleId Position module Id |
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49 @param aChannel Channel identifier |
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50 @param aCache A reference to lastknown position cache |
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51 */ |
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52 CRequestHandler::CRequestHandler() |
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53 { |
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54 } |
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55 |
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56 void CRequestHandler::ConstructL() |
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57 { |
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58 LBSLOG(ELogP1, "CRequestHandler::ConstructL()"); |
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59 iPowerStandByTimer = CLbsCallbackTimer::NewL(*this); |
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60 ResetMergedRequest(); |
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61 } |
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62 |
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63 /** |
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64 * Update the request parameters |
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65 * |
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66 * @param aRequest The request to be updated |
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67 * @param aTimeForFix The maximum fix time |
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68 * @param aQuality The requested position info quality |
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69 */ |
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70 void CRequestHandler::BuildUpdateRequest(TLbsLocRequestQuality& aRequest, const TTimeIntervalMicroSeconds& aTimeForFix, |
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71 const TPositionQuality& aQuality) |
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72 { |
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73 aRequest.SetMinHorizontalAccuracy(aQuality.HorizontalAccuracy()); |
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74 aRequest.SetMinVerticalAccuracy(aQuality.VerticalAccuracy()); |
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75 aRequest.SetMaxFixTime(aTimeForFix); |
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76 } |
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77 |
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78 /** |
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79 * Compare the current and merged requests |
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80 * |
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81 * @ret TBool, ETrue if the current and merged requests are not the same |
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82 */ |
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83 TBool CRequestHandler::MergedDifferent() |
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84 { |
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85 TBool different = EFalse; |
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86 |
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87 different = iMergedRequest.RequestQuality().MinHorizontalAccuracy() != |
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88 iCurrentRequest.RequestQuality().MinHorizontalAccuracy(); |
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89 different |= iMergedRequest.RequestQuality().MinVerticalAccuracy() != |
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90 iCurrentRequest.RequestQuality().MinVerticalAccuracy(); |
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91 different |= iMergedRequest.TargetTime() != iCurrentRequest.TargetTime(); |
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92 |
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93 TLbsNetPosMethodInt mergedMethod; |
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94 TLbsNetPosMethodInt currentMethod; |
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95 iMergedRequest.RequestMethod().GetPosMethod(0, mergedMethod); |
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96 iCurrentRequest.RequestMethod().GetPosMethod(0, currentMethod); |
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97 different |= mergedMethod.PosMode() != currentMethod.PosMode(); |
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98 |
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99 return different; |
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100 } |
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101 |
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102 |
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103 /** |
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104 * Cancels the location retrieval if no outstanding requests |
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105 * Does nothing if there are outstanding requests |
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106 * @param aError, reason for cancel |
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107 */ |
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108 void CRequestHandler::CancelRequestL() |
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109 { |
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110 LBSLOG(ELogP1, "CRequestHandler::CancelRequestL()"); |
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111 TActiveClients active; |
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112 if(!(iPositionerQ->IterETrue(active))) |
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113 { |
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114 LBSLOG(ELogP1, "No active clients. Send cancel to manager"); |
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115 TTracking tracking; |
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116 IssueCancel(iPositionerQ->IterETrue(tracking)); |
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117 ResetMergedRequest(); |
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118 } |
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119 LBSLOG(ELogP1, "CPositionerQ::CancelRequestL() end"); |
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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 * Remerges any outstanding requests and Issues either new merged request if any, or issues cancel if none |
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125 * @param aError, reason for cancel |
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126 */ |
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127 void CRequestHandler::ReMergeWithCancelRequestL(TInt aError) |
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128 { |
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129 LBSLOG(ELogP1, "CRequestHandler::ReMergeCancelRequestL()"); |
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130 TActiveClients active; |
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131 if(iPositionerQ->IterETrue(active)) |
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132 { |
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133 LBSLOG(ELogP1, "Active clients"); |
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134 SubmitRequestL(); |
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135 } |
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136 else // no outstanding requests |
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137 { |
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138 LBSLOG(ELogP1, "No active clients"); |
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139 if(aError != KErrTimedOut)// Don't pass to mgr if it's a LS timeout |
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140 { |
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141 LBSLOG(ELogP1, "Send cancel to manager"); |
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142 TTracking tracking; |
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143 IssueCancel(iPositionerQ->IterETrue(tracking)); |
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144 } |
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145 ResetMergedRequest(); |
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146 } |
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147 LBSLOG(ELogP1, "CPositionerQ::ReMergeCancelRequestL() end"); |
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148 } |
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149 |
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150 /** |
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151 * Triggers merging of new request |
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152 * Assumes the new request is now active so will be picked up below |
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153 */ |
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154 void CRequestHandler::SubmitNewRequestL(MPositioner* aNewRequest) |
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155 { |
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156 LBSLOG(ELogP1, "CRequestHandler::SubmitNewRequestL()"); |
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157 TInt newReqIndex = iPositionerQ->Index(*aNewRequest); |
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158 |
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159 TInt error = MergeNewRequest(newReqIndex); |
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160 if(KErrNone == error) |
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161 { |
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162 if(MergedDifferent()) |
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163 { |
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164 IssueMergedRequestL(); |
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165 |
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166 iPowerStandByTimer->Cancel(); |
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167 } |
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168 } |
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169 else |
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170 { |
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171 aNewRequest->UpdateFailed(error); |
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172 } |
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173 } |
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174 |
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175 TInt CRequestHandler::MergeNewRequest(TInt aNewRequest) |
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176 { |
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177 LBSLOG(ELogP1, "CRequestHandler::MergeNewRequest()"); |
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178 TBool active = (iPositionerQ->Positioner(aNewRequest)).IsActive(); |
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179 |
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180 __ASSERT_DEBUG(active, User::Panic(KAdaptationPanicCategory, EPanicNewRequestInactive)); |
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181 |
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182 TTracking tracking; |
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183 TInt error = MergeRequest( (iPositionerQ->Positioner(aNewRequest)).PositionRequestParams(), |
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184 iPositionerQ->IterETrue(tracking), TLbsPositionUpdateRequestBase::EPowerAdviceOn ); |
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185 |
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186 return error; |
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187 } |
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188 |
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189 |
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190 |
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191 /** |
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192 * Triggers merging of existing requests |
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193 */ |
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194 void CRequestHandler::SubmitRequestL() |
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195 { |
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196 LBSLOG(ELogP1, "CRequestHandler::SubmitRequestL()"); |
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197 MergeAllRequests(); |
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198 |
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199 if(MergedDifferent()) |
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200 { |
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201 IssueMergedRequestL(); |
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202 |
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203 iPowerStandByTimer->Cancel(); |
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204 } |
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205 } |
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206 |
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207 /** |
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208 * Merges all active requests |
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209 */ |
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210 void CRequestHandler::MergeAllRequests() |
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211 { |
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212 LBSLOG(ELogP1, "CRequestHandler::MergeAllRequests()"); |
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213 ResetMergedRequest(); |
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214 |
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215 TInt count = iPositionerQ->Count(); |
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216 for(TInt i=0; i<count; i++) |
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217 { |
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218 if((iPositionerQ->Positioner(i)).IsActive()) |
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219 { |
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220 TTracking tracking; |
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221 TInt error = MergeRequest( (iPositionerQ->Positioner(i)).PositionRequestParams(), iPositionerQ->IterETrue(tracking), TLbsPositionUpdateRequestBase::EPowerAdviceOn ); |
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222 __ASSERT_DEBUG(KErrNone == error, User::Panic(KAdaptationPanicCategory, EPanicModeMergeFailed)); |
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223 } |
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224 } |
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225 } |
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226 |
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227 /** |
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228 * |
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229 */ |
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230 void CRequestHandler::WarmDownTimerExpired() |
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231 { |
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232 LBSLOG(ELogP1, "CRequestHandler::WarmDownTimerExpired()"); |
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233 // Iterate positioners. If none active and no warmdown timers running, send a cancel to the manager |
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234 TActiveClients active; |
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235 TWarmingDownClients warmdown; |
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236 TTracking tracking; |
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237 |
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238 if(!iPositionerQ->IterETrue(active) && !iPositionerQ->IterETrue(warmdown)) |
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239 { |
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240 IssueCancel(iPositionerQ->IterETrue(tracking)); |
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241 ResetMergedRequest(); |
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242 } |
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243 } |
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244 |
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245 /** |
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246 * CRequestHandler::NotifyRequestComplete |
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247 * |
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248 * Notifies the request handler that a location fix has been received |
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249 * and recombines any outstanding requests for active positioners. This |
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250 * is because all positioners are held in the queue not just active ones. |
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251 */ |
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252 void CRequestHandler::NotifyRequestComplete() |
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253 { |
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254 LBSLOG(ELogP1, "CRequestHandler::NotifyRequestComplete()"); |
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255 TActiveClients active; |
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256 if(!(iPositionerQ->IterETrue(active))) |
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257 { |
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258 TInactivityTimeout inactivity; |
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259 |
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260 TTimeIntervalMicroSeconds32 timeout = iPositionerQ->IterGreatest(inactivity); |
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261 iPowerStandByTimer->Cancel(); |
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262 iPowerStandByTimer->EventAfter(timeout, EPowerStandByTimerEvent); |
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263 ResetMergedRequest(); |
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264 } |
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265 else |
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266 { |
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267 // If an error occurred sending a request then complete |
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268 // all outstanding clients with the error code |
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269 TRAPD(result, SubmitRequestL()); |
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270 if(result != KErrNone) |
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271 { |
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272 TUpdateFailed call(result); |
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273 iPositionerQ->PositionerIterator(call); |
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274 } |
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275 } |
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276 } |
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277 |
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278 /** |
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279 TimeOutTimerEvent handling |
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280 */ |
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281 void CRequestHandler::TimeOutTimerEvent() |
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282 { |
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283 LBSLOG(ELogP1, "CRequestHandler::TimeOutTimerEvent()"); |
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284 |
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285 iPowerStandByTimer->Cancel(); |
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286 |
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287 TActiveClients active; |
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288 if(!(iPositionerQ->IterETrue(active))) |
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289 { |
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290 // if queue has no active positioners then send advice EPowerAdviceStandby |
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291 TTracking tracking; |
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292 IssueStatus(iPositionerQ->IterETrue(tracking), TLbsPositionUpdateRequestBase::EPowerAdviceStandby); |
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293 } |
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294 } |
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295 |
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296 /** |
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297 TimeOutTimer error handling |
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298 */ |
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299 TInt CRequestHandler::TimeOutTimerError(TInt /*aError*/) |
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300 { |
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301 return KErrNone; |
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302 } |
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303 |
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304 /** |
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305 from MLbsCallbackTimerObserver |
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306 |
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307 @param aTimerId Time event ID to identify two different time events |
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308 */ |
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309 void CRequestHandler::OnTimerEventL(TInt aTimerId) |
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310 { |
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311 switch(aTimerId) |
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312 { |
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313 case EPowerStandByTimerEvent: |
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314 TimeOutTimerEvent(); |
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315 break; |
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316 |
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317 default: |
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318 __ASSERT_DEBUG(0, User::Panic(KAdaptationPanicCategory, KUnknownTimerEventId)); |
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319 } |
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320 } |
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321 /** |
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322 Timer error handling |
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323 |
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324 @param aError Time error code |
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325 @param aTimerId Time event ID to identify two different time events |
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326 */ |
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327 TInt CRequestHandler::OnTimerError(TInt aError, TInt aTimerId) |
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328 { |
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329 switch(aTimerId) |
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330 { |
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331 case EPowerStandByTimerEvent: |
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332 TimeOutTimerError(aError); |
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333 break; |
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334 |
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335 default: |
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336 __ASSERT_DEBUG(0, User::Panic(KAdaptationPanicCategory, KUnknownTimerEventId)); |
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337 } |
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338 return KErrNone; // we have handled the error locally |
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339 } |
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340 |
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341 |