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1 /* |
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2 * Copyright (c) 2005-2009 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: MPM ConnMon request handling |
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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 mpmconnmonreqs.cpp |
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20 Mobility Policy Manager ConnMon request handling. |
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21 */ |
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22 |
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23 // INCLUDE FILES |
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24 #include "mpmconnmonreqs.h" |
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25 #include "mpmlogger.h" |
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26 #include "mpmserversession.h" |
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27 #include "mpmiapselection.h" |
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28 |
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29 // ============================= LOCAL FUNCTIONS =============================== |
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30 |
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31 // ============================ MEMBER FUNCTIONS =============================== |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // CMPMConnMonReqs::NewL |
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35 // ----------------------------------------------------------------------------- |
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36 // |
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37 CMPMConnMonReqs* CMPMConnMonReqs::NewL(CMPMConnMonEvents& aParent, |
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38 RConnectionMonitor& aConnMon, |
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39 TUint aConnId, |
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40 CMPMServerSession& aSession ) |
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41 { |
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42 CMPMConnMonReqs* self = new (ELeave) CMPMConnMonReqs( |
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43 aParent, aConnMon, aConnId, aSession ); |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(); |
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46 CleanupStack::Pop(self); |
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47 return self; |
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48 } |
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49 |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // CMPMConnMonReqs::CMPMConnMonReqs |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CMPMConnMonReqs::CMPMConnMonReqs(CMPMConnMonEvents& aParent, |
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56 RConnectionMonitor& aConnMon, |
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57 TUint aConnId, |
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58 CMPMServerSession& aSession ) |
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59 : CActive(CActive::EPriorityStandard), |
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60 iParent(aParent), |
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61 iConnMon(aConnMon), |
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62 iConnId(aConnId), |
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63 iSession(aSession), |
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64 iWlanScanCallback( EWlanScanCallbackNone ), |
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65 iConnectionCount( 0 ) |
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66 { |
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67 } |
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68 |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 // CMPMConnMonReqs::~CMPMConnMonReqs |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 CMPMConnMonReqs::~CMPMConnMonReqs() |
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75 { |
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76 MPMLOGSTRING( "CMPMConnMonReqs::~CMPMConnMonReqs" ) |
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77 Cancel(); |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // CMPMConnMonReqs::ConstructL |
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82 // ----------------------------------------------------------------------------- |
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83 // |
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84 void CMPMConnMonReqs::ConstructL() |
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85 { |
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86 MPMLOGSTRING( "CMPMConnMonReqs::ConstructL" ) |
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87 CActiveScheduler::Add(this); |
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88 } |
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89 |
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90 // ----------------------------------------------------------------------------- |
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91 // CMPMConnMonReqs::AvailableIapsSync |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 void CMPMConnMonReqs::AvailableIapsSync() |
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95 { |
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96 MPMLOGSTRING( "CMPMConnMonReqs::AvailableIapsSync" ) |
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97 iNextState = EGetIapAvailState; |
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98 iLastCancelCode = EConnMonGetPckgAttribute; |
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99 iConnMon.GetPckgAttribute( EBearerIdAll, 0, KIapAvailability, |
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100 iIapBuf, iStatus); |
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101 SetActive(); |
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102 |
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103 // Since CodeScanner does not recognise method IsStarted(), |
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104 // it claims that here is a problem: |
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105 // |
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106 // Problem: Active object called without checking |
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107 // whether it is active or cancelling it first. |
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108 // |
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109 if ( !iActiveSchedulerWait.IsStarted() ) |
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110 { |
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111 iActiveSchedulerWait.Start(); |
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112 } |
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113 } |
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114 |
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115 // ----------------------------------------------------------------------------- |
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116 // CMPMConnMonReqs::RefreshAvailableIAPs |
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117 // ----------------------------------------------------------------------------- |
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118 // |
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119 void CMPMConnMonReqs::RefreshAvailableIAPs( TWlanScanCallback aCallback, |
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120 TInt aForceRefreshIntervalSeconds ) |
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121 { |
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122 MPMLOGSTRING2( "CMPMConnMonReqs::RefreshAvailableIAPs callback %d", aCallback ) |
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123 // set the type of callback to determine afterwards which function to call |
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124 iWlanScanCallback = aCallback; |
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125 iNextState = EScanWLANNetworksState; // Default value |
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126 iLastCancelCode = EConnMonGetPckgAttribute; |
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127 |
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128 TTime time; |
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129 time.UniversalTime(); |
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130 TTimeIntervalSeconds interval( 0 ); |
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131 |
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132 TInt ret( KErrNone ); |
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133 |
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134 // Calculate the elapsed time. |
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135 ret = time.SecondsFrom( iParent.GetIAPRefreshTime(), interval ); |
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136 if ( ret != KErrNone ) |
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137 { |
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138 MPMLOGSTRING2( "CMPMConnMonReqs::RefreshAvailableIAPs interval error %d ", ret ) |
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139 // problem with interval, force iapavailability. |
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140 interval = 0; |
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141 aForceRefreshIntervalSeconds = 0; |
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142 } |
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143 // Default behavior is to query KIapAvailability from ConnMon always |
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144 // or if the availability information has aged at least aForceRefreshIntervalSeconds |
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145 // |
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146 if ( aForceRefreshIntervalSeconds == 0 || |
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147 ( interval.Int() >= aForceRefreshIntervalSeconds ) ) |
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148 { |
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149 // Discard availability notifications from Connection Monitor |
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150 // until MPM initiated WLAN scan request has completed. |
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151 // |
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152 iParent.EnableDiscarding(); |
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153 |
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154 MPMLOGSTRING2( "CMPMConnMonReqs::RefreshAvailableIAPs interval %d, executing scan", |
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155 interval.Int() ) |
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156 iConnMon.GetPckgAttribute( EBearerIdAll, 0, KIapAvailability, |
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157 iIapBuf, iStatus ); |
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158 SetActive(); |
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159 } |
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160 // With consecutive calls we allow MPM to use cached value. |
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161 // |
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162 else |
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163 { |
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164 MPMLOGSTRING2( "CMPMConnMonReqs::RefreshAvailableIAPs interval %d, using cached value", |
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165 interval.Int() ) |
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166 |
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167 // iIapBuf is empty, thus we need a new state. |
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168 iNextState = EScanWLANNetworksStateCached; |
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169 TRequestStatus* statusPtr; |
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170 statusPtr = &iStatus; |
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171 // We can just complete the request. |
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172 SetActive(); |
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173 User::RequestComplete( statusPtr, KErrNone ); |
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174 } |
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175 } |
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176 |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // CMPMConnMonReqs::CompareConnIds |
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180 // ----------------------------------------------------------------------------- |
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181 // |
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182 TBool CMPMConnMonReqs::CompareConnIds( const CMPMConnMonReqs& aReq1, |
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183 const CMPMConnMonReqs& aReq2 ) |
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184 { |
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185 if ( aReq1.iConnId == aReq2.iConnId ) |
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186 { |
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187 return ETrue; |
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188 } |
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189 else |
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190 { |
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191 return EFalse; |
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192 } |
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193 } |
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194 |
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195 // ----------------------------------------------------------------------------- |
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196 // CMPMConnMonReqs::MyCancel() |
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197 // ----------------------------------------------------------------------------- |
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198 // |
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199 void CMPMConnMonReqs::MyCancel() |
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200 { |
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201 // Handle cancellation here. |
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202 MPMLOGSTRING( "CMPMConnMonReqs::MyCancel()" ) |
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203 ASSERT( iNextState != EGetIapAvailState && iNextState != EObsolete ); |
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204 // Allow the availability update when the connmon request completes. |
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205 iNextState = EObsolete; |
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206 } |
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207 |
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208 // ----------------------------------------------------------------------------- |
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209 // CMPMConnMonReqs::ErrorCallbackL() |
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210 // ----------------------------------------------------------------------------- |
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211 // |
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212 void CMPMConnMonReqs::ErrorCallbackL( TInt aStatus ) |
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213 { |
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214 switch ( iNextState ) |
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215 { |
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216 case EGetIapAvailState: |
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217 case EGetConnectionCountState: |
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218 { |
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219 MPMLOGSTRING( "CMPMConnMonReqs::ErrorCallbackL: EGetIapAvailState failed" ) |
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220 if ( iActiveSchedulerWait.IsStarted() ) |
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221 { |
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222 iActiveSchedulerWait.AsyncStop(); |
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223 } |
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224 break; |
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225 } |
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226 case EScanWLANNetworksState: |
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227 case EScanWLANNetworksStateCached: |
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228 { |
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229 MPMLOGSTRING( "CMPMConnMonReqs::ErrorCallbackL: EScanWLANNetworksState failed" ) |
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230 |
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231 // Disable discarding availability notifications from Connection Monitor. |
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232 // |
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233 iParent.DisableDiscarding(); |
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234 |
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235 // check which callback function to use and continue |
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236 // handling the request if possible. |
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237 // |
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238 if( iWlanScanCallback == EWlanScanCallbackChooseIap ) |
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239 { |
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240 iSession.IapSelectionL()->ChooseIapWLANScanCompletedL( aStatus ); |
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241 } |
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242 else if( iWlanScanCallback == EWlanScanCallbackProcessErr ) |
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243 { |
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244 iSession.ProcessErrorWlanScanCompletedL(); |
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245 } |
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246 else if( iWlanScanCallback == EWlanScanCallbackCarrierRejected ) |
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247 { |
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248 // No fresh IAP info available but try to select new IAP |
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249 // based on whatever existing info there is |
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250 // |
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251 iSession.CompleteCarrierRejected(); |
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252 } |
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253 else if( iWlanScanCallback == EWlanScanCallbackSortSnap ) |
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254 { |
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255 // SortSnap was called with old availability information. |
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256 iSession.CompleteServerSortSNAP(); |
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257 } |
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258 else |
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259 { |
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260 MPMLOGSTRING( |
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261 "CMPMConnMonReqs::ErrorCallbackL: iWlanScanCallback EWlanScanCallbackNone" ) |
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262 } |
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263 // reset callback type |
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264 // |
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265 iWlanScanCallback = EWlanScanCallbackNone; |
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266 break; |
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267 } |
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268 case EObsolete: |
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269 MPMLOGSTRING( "CMPMConnMonReqs::ErrorCallbackL: EObsolete" ) |
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270 break; |
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271 } |
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272 } |
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273 |
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274 // ----------------------------------------------------------------------------- |
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275 // CMPMConnMonReqs::RunL |
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276 // ----------------------------------------------------------------------------- |
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277 // |
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278 void CMPMConnMonReqs::RunL() |
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279 { |
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280 MPMLOGSTRING( "CMPMConnMonReqs::RunL" ) |
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281 if ( iStatus != KErrNone ) |
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282 { |
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283 // Nok |
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284 MPMLOGSTRING2( "CMPMConnMonReqs::RunL: \ |
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285 ConnMon request completed with error code = %i", iStatus.Int() ) |
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286 |
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287 // Does nothing if state is obsolete. |
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288 ErrorCallbackL( iStatus.Int() ); |
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289 |
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290 // RemoveReqPtr is safe if "this" doesn't exist |
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291 iParent.RemoveReqPtr( this ); |
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292 delete this; |
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293 } |
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294 else |
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295 { |
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296 // Ok |
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297 switch (iNextState) |
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298 { |
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299 case EGetIapAvailState: |
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300 { |
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301 MPMLOGSTRING( "CMPMConnMonReqs::RunL: EGetIapAvailState" ) |
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302 iParent.SetAvailableIAPs( iIapBuf() ); |
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303 |
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304 if ( iActiveSchedulerWait.IsStarted() ) |
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305 { |
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306 iActiveSchedulerWait.AsyncStop(); |
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307 } |
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308 |
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309 iNextState = EGetConnectionCountState; |
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310 iLastCancelCode = EConnMonGetConnectionCount; |
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311 iConnMon.GetConnectionCount( iConnectionCount, iStatus ); |
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312 SetActive(); |
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313 break; |
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314 } |
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315 case EGetConnectionCountState: |
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316 { |
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317 MPMLOGSTRING( "CMPMConnMonReqs::RunL: EGetConnectionCountState" ) |
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318 MPMLOGSTRING2( "CMPMConnMonReqs::RunL: Connection Count: %i", |
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319 iConnectionCount ) |
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320 iParent.SetConnectionCounter( iConnectionCount ); |
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321 iParent.RemoveReqPtr( this ); |
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322 delete this; |
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323 break; |
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324 } |
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325 case EScanWLANNetworksState: |
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326 case EScanWLANNetworksStateCached: |
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327 { |
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328 MPMLOGSTRING( "CMPMConnMonReqs::RunL: EScanWLANNetworksState and EScanWLANNetworksStateCached" ) |
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329 if ( iNextState == EScanWLANNetworksState ) |
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330 { |
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331 MPMLOGSTRING( "CMPMConnMonReqs::RunL: EScanWLANNetworksState fresh data available from ConnMon" ) |
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332 iParent.SetAvailableIAPs( iIapBuf() ); |
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333 |
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334 // Disable discarding availability notifications from Connection Monitor. |
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335 // |
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336 iParent.DisableDiscarding(); |
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337 |
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338 // Generate event only if we got new iaps from ConnMon. |
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339 // |
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340 if ( iWlanScanCallback == EWlanScanCallbackGenerateEvent ) |
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341 { |
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342 MPMLOGSTRING( "CMPMConnMonReqs::RunL: iWlanScanCallback EWlanScanCallbackGenerateEvent" ) |
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343 // Generate event only if not |
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344 // |
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345 iParent.IapAvailabilityChange(); |
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346 } |
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347 } |
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348 // check which callback function to use |
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349 // |
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350 if( iWlanScanCallback == EWlanScanCallbackChooseIap ) |
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351 { |
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352 iSession.IapSelectionL()->ChooseIapWLANScanCompletedL( iStatus.Int() ); |
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353 } |
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354 else if( iWlanScanCallback == EWlanScanCallbackProcessErr ) |
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355 { |
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356 iSession.ProcessErrorWlanScanCompletedL(); |
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357 } |
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358 else if( iWlanScanCallback == EWlanScanCallbackCarrierRejected ) |
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359 { |
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360 iSession.CompleteCarrierRejected(); |
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361 } |
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362 else if( iWlanScanCallback == EWlanScanCallbackSortSnap ) |
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363 { |
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364 iSession.CompleteServerSortSNAP(); |
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365 } |
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366 else |
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367 { |
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368 MPMLOGSTRING( |
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369 "CMPMConnMonReqs::RunL: iWlanScanCallback default processing" ) |
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370 } |
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371 // reset callback type |
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372 // |
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373 iWlanScanCallback = EWlanScanCallbackNone; |
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374 |
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375 iParent.RemoveReqPtr( this ); |
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376 delete this; |
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377 break; |
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378 } |
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379 case EObsolete: |
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380 iParent.SetAvailableIAPs( iIapBuf() ); |
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381 delete this; |
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382 break; |
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383 default: |
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384 { |
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385 MPMLOGSTRING( "CMPMConnMonReqs::RunL: default" ) |
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386 PanicServer( KErrNotSupported ); |
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387 break; |
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388 } |
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389 } |
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390 } |
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391 } |
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392 |
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393 |
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394 // ----------------------------------------------------------------------------- |
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395 // CMPMConnMonReqs::RunError |
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396 // ----------------------------------------------------------------------------- |
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397 // |
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398 |
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399 TInt CMPMConnMonReqs::RunError( TInt aError ) |
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400 { |
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401 MPMLOGSTRING2( |
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402 "CMPMConnMonReqs::RunError: RunL made a leave with error = %i", |
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403 aError ) |
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404 |
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405 // Disable discarding availability notifications from Connection Monitor. |
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406 // |
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407 iParent.DisableDiscarding(); |
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408 |
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409 // check which callback function was used when leave occurred |
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410 // |
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411 if( iWlanScanCallback == EWlanScanCallbackChooseIap ) |
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412 { |
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413 iSession.ChooseIapComplete( aError, NULL ); |
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414 } |
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415 else if( iWlanScanCallback == EWlanScanCallbackProcessErr ) |
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416 { |
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417 TBMNeededAction neededAction( EPropagateError ); |
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418 iSession.ProcessErrorComplete( KErrNone, &aError, &neededAction ); |
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419 } |
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420 else |
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421 { |
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422 MPMLOGSTRING( |
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423 "CMPMConnMonReqs::RunError: iWlanScanCallback EWlanScanCallbackNone" ) |
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424 } |
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425 |
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426 // We are done |
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427 iParent.RemoveReqPtr( this ); |
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428 delete this; |
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429 |
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430 // Return KErrNone to prevent panic |
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431 return KErrNone; |
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432 } |
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433 |
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434 // ----------------------------------------------------------------------------- |
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435 // CMPMConnMonReqs::DoCancel |
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436 // ----------------------------------------------------------------------------- |
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437 // |
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438 void CMPMConnMonReqs::DoCancel() |
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439 { |
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440 MPMLOGSTRING( "CMPMConnMonReqs::DoCancel" ) |
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441 |
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442 // Disable discarding availability notifications from Connection Monitor. |
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443 // |
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444 iParent.DisableDiscarding(); |
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445 |
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446 iConnMon.CancelAsyncRequest( iLastCancelCode ); |
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447 |
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448 if ( iActiveSchedulerWait.IsStarted() ) |
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449 { |
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450 iActiveSchedulerWait.AsyncStop(); |
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451 } |
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452 } |
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453 |
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454 // End of File |