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1 /* |
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2 * Copyright (c) 2003-2005 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: Imps connection manager. |
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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 |
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20 |
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21 |
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22 // INCLUDE FILES |
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23 #include <e32std.h> |
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24 #include "ImpsSendReceive.h" |
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25 #include "impsactiveconnmonitor.h" |
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26 #include "impsutils.h" |
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27 #include "impserrors.h" |
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28 |
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29 |
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30 // CONSTANTS |
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31 |
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32 // MACROS |
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33 #ifndef _DEBUG |
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34 #define _NO_IMPS_LOGGING_ |
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35 #endif |
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36 |
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37 // LOCAL CONSTANTS AND MACROS |
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38 |
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39 // Wait time 8 seconds before IAP re-opened |
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40 const TInt KImpsWaitIAPOpen = 8000000; |
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41 |
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42 |
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43 |
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44 // ================= MEMBER FUNCTIONS ======================= |
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45 |
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46 // C++ default constructor can NOT contain any code, that |
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47 // might leave. |
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48 // |
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49 |
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50 //********************************** |
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51 // CImpsConnManager |
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52 //********************************** |
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53 CImpsConnManager::CImpsConnManager( |
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54 CImpsSendReceive2& aSender, |
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55 TInt aPriority ) |
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56 : CActive( aPriority ), |
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57 iSender( aSender ), |
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58 iState( EImpsNoAP ), |
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59 iCmd( EImpsTransNone ), |
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60 iConnState( EMsgBearerActive ), |
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61 iManager( NULL ), |
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62 iRunL( EFalse ) |
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63 { |
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64 ( void ) iTimer.CreateLocal(); |
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65 // Add this to the scheduler |
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66 CActiveScheduler::Add( this ); |
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67 } |
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68 |
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69 // EPOC default constructor can leave. |
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70 void CImpsConnManager::ConstructL() |
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71 { |
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72 #ifndef _NO_IMPS_LOGGING_ |
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73 CImpsClientLogger::Log( _L( "CImpsConnManager: CONSTRUCTL rel200540.3f cman=%d" ), ( TInt )this ); |
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74 #endif |
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75 iManager = NewMsgConnManagerL( 0 ); |
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76 } |
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77 |
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78 // Two-phased constructor. |
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79 CImpsConnManager* CImpsConnManager::NewL( |
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80 CImpsSendReceive2& aSender, TInt aPriority ) |
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81 { |
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82 CImpsConnManager* self = new ( ELeave ) CImpsConnManager( |
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83 aSender, aPriority ); |
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84 CleanupStack::PushL( self ); |
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85 self->ConstructL(); |
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86 CleanupStack::Pop(); |
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87 return self; |
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88 } |
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89 |
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90 |
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91 // Destructor |
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92 CImpsConnManager::~CImpsConnManager() |
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93 { |
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94 #ifndef _NO_IMPS_LOGGING_ |
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95 CImpsClientLogger::Log( _L( "CImpsConnManager: DESTRUCTOR begins cman=%d" ), ( TInt )this ); |
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96 #endif |
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97 Cancel(); |
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98 iTimer.Close(); |
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99 if ( iManager ) |
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100 { |
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101 iManager->Destroy(); |
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102 } |
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103 |
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104 #ifndef _NO_IMPS_LOGGING_ |
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105 CImpsClientLogger::Log( _L( "CImpsConnManager: DESTRUCTOR ends cman=%d" ), ( TInt )this ); |
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106 #endif |
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107 } |
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108 |
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109 // --------------------------------------------------------- |
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110 // CImpsConnManager::OpenAPL |
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111 // --------------------------------------------------------- |
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112 // |
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113 void CImpsConnManager::OpenAPL( |
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114 TInt aIAP, TBool aDelayed ) |
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115 { |
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116 #ifndef _NO_IMPS_LOGGING_ |
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117 CImpsClientLogger::Log( _L( "CImpsConnManager: OpenAPL iap=%d delay=%d cman=%d" ), |
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118 aIAP, aDelayed, ( TInt )this ); |
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119 #endif |
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120 if ( IsActive () ) |
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121 { |
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122 // Notice: We should not be here |
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123 #ifndef _NO_IMPS_LOGGING_ |
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124 CImpsClientLogger::Log( _L( "CImpsConnManager: BUSY cman=%d ****" ), ( TInt )this ); |
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125 #endif |
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126 User::Leave( KErrNotReady ); |
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127 } |
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128 |
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129 iConnState = EMsgBearerActive; |
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130 |
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131 if ( ( aDelayed || iRunL ) && iCmd != EImpsTransWaitOpen ) |
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132 { |
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133 #ifndef _NO_IMPS_LOGGING_ |
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134 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d OpenAPL extra wait ****" ), ( TInt )this ); |
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135 #endif |
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136 iCmd = EImpsTransWaitOpen; |
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137 iState = EImpsNoAP; |
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138 iIAP = aIAP; |
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139 SetActive(); |
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140 // Give time for Connection Manager |
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141 iTimer.After( iStatus, KImpsWaitIAPOpen ); |
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142 return; |
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143 } |
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144 iCmd = EImpsTransNone; |
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145 #ifndef _NO_IMPS_LOGGING_ |
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146 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls SetAccessPointIDL" ), ( TInt )this ); |
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147 #endif |
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148 iManager->SetAccessPointIDL( aIAP ); |
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149 #ifndef _NO_IMPS_LOGGING_ |
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150 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls RemoveEventSubscriber and AddEventSubscriberL" ), ( TInt )this ); |
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151 #endif |
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152 // Verify that in error cases nothing is left hanging |
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153 iManager->RemoveEventSubscriber( this ); |
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154 iManager->AddEventSubscriberL( this ); |
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155 iStatus = KRequestPending; |
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156 #ifndef _NO_IMPS_LOGGING_ |
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157 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls StartConnection" ), ( TInt )this ); |
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158 #endif |
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159 iManager->StartConnection( iStatus ); |
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160 iCmd = EImpsTransOpenAP; |
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161 iState = EImpsNoAP; |
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162 iIAP = aIAP; |
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163 SetActive(); |
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164 } |
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165 |
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166 // --------------------------------------------------------- |
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167 // CImpsConnManager::CloseAP |
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168 // --------------------------------------------------------- |
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169 // |
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170 void CImpsConnManager::CloseAP( TBool /*aTotalClose*/ ) |
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171 { |
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172 #ifndef _NO_IMPS_LOGGING_ |
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173 CImpsClientLogger::Log( _L( "CImpsConnManager: CloseAP state=%d %d cman=%d" ), |
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174 iState, IsActive(), ( TInt )this ); |
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175 #endif |
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176 |
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177 if ( iState == EImpsNoAP && !IsActive() ) |
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178 { |
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179 #ifndef _NO_IMPS_LOGGING_ |
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180 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d CloseAP already closed" ), ( TInt )this ); |
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181 #endif |
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182 iCmd = EImpsTransNone; |
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183 iConnState = EMsgBearerActive; |
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184 // Engine core waits any kind of response in shut down |
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185 iSender.APStatusEvent( EImpsNoAP, KErrNone, ETrue ); |
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186 #ifndef _NO_IMPS_LOGGING_ |
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187 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d CloseAP ends" ), ( TInt )this ); |
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188 #endif |
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189 return; |
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190 } |
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191 else if ( iState == EImpsNoAP && IsActive() ) |
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192 { |
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193 // Waiting open timer must be cancelled |
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194 if ( iCmd == EImpsTransWaitOpen ) |
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195 { |
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196 // This cancels the timer |
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197 #ifndef _NO_IMPS_LOGGING_ |
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198 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d err: CANCEL ***" ), ( TInt )this ); |
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199 #endif |
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200 Cancel(); |
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201 iCmd = EImpsTransCloseAP; |
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202 iIAP = 0; |
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203 // Now do the trick to go to own RunL and call there appropriate callback. |
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204 ActivateMe(); |
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205 return; |
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206 } |
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207 else if ( iCmd == EImpsTransOpenAP ) |
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208 { |
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209 // Open APL is pending and must be cancelled |
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210 #ifndef _NO_IMPS_LOGGING_ |
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211 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls CancelStartL ****" ), ( TInt )this ); |
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212 #endif |
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213 TRAPD( errx, iManager->CancelStartL() ); |
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214 if ( errx ) |
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215 { |
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216 // Normally this is not needed, but Cancel StartL may leave with |
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217 // KErrAbort if there is no pending request. |
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218 // VERY RARE situation. |
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219 iCmd = EImpsTransNone; |
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220 iSender.APStatusEvent( EImpsNoAP, KErrNone, ETrue ); |
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221 return; |
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222 } |
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223 // Normal case continues in RunL |
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224 #ifndef _NO_IMPS_LOGGING_ |
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225 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d CloseAP ends" ), ( TInt )this ); |
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226 #endif |
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227 return; |
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228 } |
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229 } |
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230 else if ( IsActive() ) // |
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231 { |
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232 // Previous close is not completed. |
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233 #ifndef _NO_IMPS_LOGGING_ |
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234 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d BUSY ***" ), ( TInt )this ); |
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235 #endif |
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236 return; |
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237 } |
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238 iCmd = EImpsTransCloseAP; |
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239 iIAP = 0; |
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240 iStatus = KRequestPending; |
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241 SetActive(); |
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242 // Notice: Rest of activities in RunL and destructor |
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243 #ifndef _NO_IMPS_LOGGING_ |
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244 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls RemoveEventSubscriber" ), ( TInt )this ); |
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245 #endif |
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246 iManager->RemoveEventSubscriber( this ); |
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247 #ifndef _NO_IMPS_LOGGING_ |
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248 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls StopConnection" ), ( TInt )this ); |
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249 #endif |
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250 iManager->StopConnection( iStatus ); |
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251 |
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252 #ifndef _NO_IMPS_LOGGING_ |
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253 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d CloseAP ends" ), ( TInt )this ); |
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254 #endif |
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255 } |
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256 |
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257 |
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258 // --------------------------------------------------------- |
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259 // CImpsConnManager::HandleBearerEventL |
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260 // --------------------------------------------------------- |
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261 // |
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262 void CImpsConnManager::HandleBearerEventL( TBool aIsAuthClose, TMsgBearerEvent aBearerEvent ) |
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263 { |
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264 #ifndef _NO_IMPS_LOGGING_ |
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265 CImpsClientLogger::Log( |
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266 _L( "CImpsConnManager: HandleBearerEventL %d authClose=%d cman=%d" ), aBearerEvent, aIsAuthClose, ( TInt )this ); |
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267 #endif |
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268 iConnState = aBearerEvent; |
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269 if ( IsActive() ) |
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270 { |
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271 // pending open/close, so wait that instead |
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272 #ifndef _NO_IMPS_LOGGING_ |
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273 CImpsClientLogger::Log( |
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274 _L( "CImpsConnManager: HandleBearerEventL SPECIAL cmd=%d cman=%d ***" ), iCmd, ( TInt )this ); |
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275 #endif |
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276 |
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277 /* Notice: |
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278 This is a little bit tricky situation because of Msg ConnManager DLL |
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279 cannot quarantee the right order of events for us! Thus it is |
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280 possible that we first get bearer-event and after that response |
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281 for open/close connection request although the actual order |
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282 is that open/close is first completed and then the bearer event has |
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283 taken a place. |
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284 |
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285 /@ |
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286 \ \ |
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287 ___> \ |
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288 (__O) \ |
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289 (____@) \ |
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290 (____@) \ |
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291 (__o)_ \ |
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292 \ \ |
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293 */ |
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294 |
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295 switch ( iConnState ) |
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296 { |
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297 case EMsgBearerActive: |
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298 iSender.APStatusEvent( EImpsOnline, KErrNone, EFalse ); |
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299 break; |
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300 case EMsgBearerSuspended: |
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301 iSender.APStatusEvent( EImpsOffline, KErrNone, EFalse ); |
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302 break; |
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303 case EMsgBearerLost: |
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304 default: |
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305 { |
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306 // RunL handles rest of the activities |
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307 // when iConnState == EMsgBearerLost. |
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308 break; |
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309 } |
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310 }; |
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311 } |
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312 else // regular case |
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313 { |
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314 switch ( iConnState ) |
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315 { |
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316 case EMsgBearerActive: |
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317 iSender.APStatusEvent( EImpsOnline, KErrNone, EFalse ); |
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318 break; |
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319 case EMsgBearerSuspended: |
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320 iSender.APStatusEvent( EImpsOffline, KErrNone, EFalse ); |
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321 break; |
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322 case EMsgBearerLost: |
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323 default: |
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324 { |
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325 iState = EImpsNoAP; |
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326 iSender.APStatusEvent( EImpsNoAP, KErrNone, EFalse, aIsAuthClose ); |
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327 break; |
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328 } |
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329 } |
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330 }; |
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331 #ifndef _NO_IMPS_LOGGING_ |
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332 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d HandleBearerEventL ends" ), ( TInt )this ); |
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333 #endif |
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334 } |
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335 |
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336 // --------------------------------------------------------- |
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337 // CImpsConnManager::ManagerHandleL |
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338 // --------------------------------------------------------- |
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339 // |
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340 MMsgConnManager& CImpsConnManager::ManagerHandleL() const |
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341 { |
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342 if ( !iManager ) |
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343 { |
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344 User::Leave( KErrBadHandle ); |
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345 } |
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346 return *iManager; |
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347 } |
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348 |
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349 // --------------------------------------------------------- |
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350 // CImpsConnManager::Destroy |
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351 // --------------------------------------------------------- |
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352 // |
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353 void CImpsConnManager::Destroy() |
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354 { |
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355 if ( iManager ) |
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356 { |
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357 iManager->Destroy(); |
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358 } |
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359 iManager = NULL; |
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360 } |
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361 |
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362 // --------------------------------------------------------- |
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363 // CImpsConnManager::RunL |
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364 // --------------------------------------------------------- |
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365 // |
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366 void CImpsConnManager::RunL( ) |
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367 { |
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368 |
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369 #ifndef _NO_IMPS_LOGGING_ |
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370 CImpsClientLogger::Log( _L( "CImpsConnManager: RunL ret=%d cmd=%d state=%d conn=%d cman=%d" ), |
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371 iStatus.Int(), iCmd, iState, iConnState, ( TInt )this ); |
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372 #endif |
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373 |
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374 iRunL = ETrue; |
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375 TInt ret = iStatus.Int(); |
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376 |
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377 // We have delayed and given time for connection manager to work properly |
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378 if ( iCmd == EImpsTransWaitOpen ) |
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379 { |
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380 if ( !ret ) |
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381 { |
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382 TInt errx = KErrNone; |
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383 TRAP( errx, OpenAPL( iIAP, EFalse ) ); |
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384 } |
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385 else |
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386 { |
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387 iState = EImpsNoAP; |
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388 iCmd = EImpsTransNone; |
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389 iSender.APStatusEvent( iState, ret, ETrue ); |
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390 } |
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391 } |
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392 else if ( iCmd == EImpsTransOpenAP ) |
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393 { |
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394 iCmd = EImpsTransNone; |
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395 iState = EImpsNoAP; |
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396 if ( ret == KErrNone ) |
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397 { |
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398 if ( iConnState != EMsgBearerLost ) |
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399 { |
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400 // AP is opened successfully |
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401 iState = EImpsOnline; |
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402 } |
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403 else // iConnState == EMsgBearerLost |
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404 { |
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405 #ifndef _NO_IMPS_LOGGING_ |
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406 CImpsClientLogger::Log( _L( "CImpsConnManager: err: cman=%d iConnState==EMsgBearerLost ****" ), ( TInt )this ); |
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407 #endif |
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408 // Special case where order of events from ConnManager is not valid. |
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409 ret = KImpsErrorNoIAP; |
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410 // KImpsErrorNoIAP error code has a special error handling |
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411 // in CSPSession class. |
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412 } |
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413 } |
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414 iSender.APStatusEvent( iState, ret, ETrue ); |
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415 } |
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416 else if ( iCmd == EImpsTransCloseAP ) |
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417 { |
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418 iCmd = EImpsTransNone; |
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419 iState = EImpsNoAP; |
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420 // Notice that iSender must exist, i.e. DeleteCSP() cancels |
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421 // everything before deleting CSP session entity referred by iSender. |
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422 iSender.APStatusEvent( EImpsNoAP, ret, ETrue ); |
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423 } |
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424 else if ( iCmd == EImpsTransCloseDelay ) |
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425 { |
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426 // This is a special case where this object is used for yielding. |
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427 // Actually it calls CloseAP |
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428 iCmd = EImpsTransNone; |
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429 iSender.CloseTr( ); |
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430 } |
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431 else |
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432 { |
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433 iCmd = EImpsTransNone; |
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434 } |
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435 iRunL = EFalse; |
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436 #ifndef _NO_IMPS_LOGGING_ |
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437 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d RunL ends" ), ( TInt )this ); |
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438 #endif |
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439 } |
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440 |
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441 // --------------------------------------------------------- |
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442 // CImpsConnManager::DoCancel |
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443 // --------------------------------------------------------- |
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444 // |
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445 void CImpsConnManager::DoCancel() |
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446 { |
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447 #ifndef _NO_IMPS_LOGGING_ |
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448 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d DoCancel" ), ( TInt )this ); |
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449 #endif |
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450 TImpsTransCmd orig = iCmd; |
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451 iCmd = EImpsTransNone; |
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452 if ( orig == EImpsTransOpenAP ) |
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453 { |
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454 // cancel |
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455 #ifndef _NO_IMPS_LOGGING_ |
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456 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d calls CancelStartL *****" ), ( TInt )this ); |
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457 #endif |
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458 TInt errx = KErrNone; |
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459 TRAP( errx, iManager->CancelStartL() ); |
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460 } |
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461 else if ( orig == EImpsTransCloseAP ) |
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462 { |
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463 iState = EImpsNoAP; |
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464 } |
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465 // This just waits IAP connection operation to end. |
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466 else if ( iCmd == EImpsTransWaitOpen ) |
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467 { |
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468 iTimer.Cancel(); |
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469 } |
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470 } |
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471 |
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472 TInt CImpsConnManager::ActivateMe( ) |
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473 { |
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474 // This yields the control to the server thread active scheduler |
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475 if ( !IsActive() ) |
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476 { |
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477 iStatus = KRequestPending; |
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478 SetActive(); |
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479 TRequestStatus* s = &iStatus; |
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480 User::RequestComplete( s, KErrNone ); |
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481 return KErrNone; |
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482 } |
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483 else |
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484 { |
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485 #ifndef _NO_IMPS_LOGGING_ |
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486 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d KErrNotReady ****" ), ( TInt )this ); |
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487 #endif |
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488 return KErrNotReady; |
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489 } |
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490 } |
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491 |
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492 TInt CImpsConnManager::StartDelayed( ) |
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493 { |
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494 #ifndef _NO_IMPS_LOGGING_ |
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495 CImpsClientLogger::Log( _L( "CImpsConnManager: cman=%d StartDelayed" ), ( TInt )this ); |
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496 #endif |
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497 iCmd = EImpsTransCloseDelay; |
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498 return ActivateMe(); |
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499 } |
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500 |
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501 |
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502 // End of File |