1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: respository of remote Bluetooth devices. |
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15 * |
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16 */ |
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17 |
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18 #include "btdevrepositoryimpl.h" |
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19 #include <e32property.h> |
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20 #include <bt_subscribe.h> |
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21 #include <btservices/btdevrepository.h> |
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22 #include "btserviceutilconsts.h" |
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23 |
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24 // --------------------------------------------------------------------------- |
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25 // Tells if two CBTDevice instances are for the same remote device |
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26 // --------------------------------------------------------------------------- |
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27 // |
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28 TBool CompareDeviceByAddress( const CBTDevice& aDevA, const CBTDevice& aDevB ) |
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29 { |
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30 return aDevA.BDAddr() == aDevB.BDAddr(); |
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31 } |
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32 |
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33 // --------------------------------------------------------------------------- |
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34 // Tells if these two instances are for the same remote device |
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35 // --------------------------------------------------------------------------- |
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36 // |
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37 TBool MatchDeviceAddress(const TBTDevAddr* aAddr, const CBTDevice& aDev) |
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38 { |
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39 return *aAddr == aDev.BDAddr(); |
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40 } |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // Tells if these two instances are for the same remote device |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 TBool MatchDeviceAddress(const TBTDevAddr* aAddr, const CBtDevExtension& aDev) |
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47 { |
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48 return *aAddr == aDev.Device().BDAddr(); |
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49 } |
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50 |
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51 // ======== MEMBER FUNCTIONS ======== |
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52 |
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53 // --------------------------------------------------------------------------- |
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54 // C++ default constructor |
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55 // --------------------------------------------------------------------------- |
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56 // |
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57 CBtDevRepositoryImpl::CBtDevRepositoryImpl() |
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58 { |
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59 } |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // Symbian 2nd-phase constructor |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 void CBtDevRepositoryImpl::ConstructL() |
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66 { |
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67 // connect to registry |
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68 User::LeaveIfError( iBTRegServ.Connect() ); |
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69 User::LeaveIfError( iBTRegistry.Open( iBTRegServ ) ); |
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70 iRegistryActive = CBtSimpleActive::NewL( |
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71 *this, BtServiceUtil::ECreateRemoteDeviceViewRequest ); |
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72 // Start to get the list of devices from registry. |
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73 CreateRemoteDeviceView(); |
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74 |
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75 User::LeaveIfError( iBtRegistryKey.Attach( |
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76 KPropertyUidBluetoothCategory, |
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77 KPropertyKeyBluetoothGetRegistryTableChange ) ); |
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78 |
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79 iRegistryKeyActive = CBtSimpleActive::NewL( *this, BtServiceUtil::ERegistryPubSubWatcher ); |
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80 iBtRegistryKey.Subscribe( iRegistryKeyActive->RequestStatus() ); |
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81 iRegistryKeyActive->GoActive(); |
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82 iBtengConn = CBTEngConnMan::NewL( this ); |
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83 } |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // NewL |
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87 // --------------------------------------------------------------------------- |
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88 // |
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89 CBtDevRepositoryImpl* CBtDevRepositoryImpl::NewL() |
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90 { |
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91 CBtDevRepositoryImpl* self = NULL; |
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92 self = new (ELeave) CBtDevRepositoryImpl(); |
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93 CleanupStack::PushL( self ); |
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94 self->ConstructL(); |
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95 CleanupStack::Pop( self ); |
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96 return self; |
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97 } |
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98 |
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99 // --------------------------------------------------------------------------- |
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100 // Destructor |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 CBtDevRepositoryImpl::~CBtDevRepositoryImpl() |
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104 { |
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105 iObservers.Close(); |
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106 delete iBtengConn; |
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107 delete iRegistryActive; |
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108 delete iRegRespRemoteDevices; |
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109 iDevices.ResetAndDestroy(); |
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110 iDevices.Close(); |
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111 iBTRegistry.Close(); |
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112 iBTRegServ.Close(); |
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113 delete iRegistryKeyActive; |
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114 iBtRegistryKey.Close(); |
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115 } |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // AddObserverL |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 void CBtDevRepositoryImpl::AddObserverL( MBtDevRepositoryObserver* aObserver ) |
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122 { |
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123 // Do not allow null pointer. |
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124 if ( aObserver ) |
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125 { |
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126 iObservers.AppendL( aObserver ); |
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127 } |
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128 } |
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129 |
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130 // --------------------------------------------------------------------------- |
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131 // RemoveObserver |
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132 // --------------------------------------------------------------------------- |
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133 // |
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134 void CBtDevRepositoryImpl::RemoveObserver( MBtDevRepositoryObserver* aObserver ) |
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135 { |
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136 TInt i = iObservers.Find( aObserver ); |
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137 if ( i >= 0 ) |
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138 { |
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139 iObservers.Remove( i ); |
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140 } |
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141 } |
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142 |
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143 // --------------------------------------------------------------------------- |
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144 // IsInitialized |
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145 // --------------------------------------------------------------------------- |
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146 // |
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147 TBool CBtDevRepositoryImpl::IsInitialized() const |
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148 { |
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149 return iInitialized; |
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150 } |
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151 |
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152 // --------------------------------------------------------------------------- |
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153 // AllDevices |
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154 // --------------------------------------------------------------------------- |
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155 // |
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156 const RDevExtensionArray& CBtDevRepositoryImpl::AllDevices() const |
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157 { |
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158 return iDevices; |
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159 } |
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160 |
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161 // --------------------------------------------------------------------------- |
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162 // Device |
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163 // --------------------------------------------------------------------------- |
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164 // |
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165 const CBtDevExtension* CBtDevRepositoryImpl::Device( |
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166 const TBTDevAddr& aAddr ) const |
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167 { |
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168 TInt pos = iDevices.Find( aAddr, MatchDeviceAddress); |
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169 if ( pos > -1 ) |
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170 { |
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171 return iDevices[pos]; |
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172 } |
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173 return NULL; |
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174 } |
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175 |
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176 // --------------------------------------------------------------------------- |
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177 // ReInitialize |
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178 // --------------------------------------------------------------------------- |
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179 // |
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180 void CBtDevRepositoryImpl::ReInitialize() |
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181 { |
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182 iInitialized = EFalse; |
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183 if ( !iRegistryActive->IsActive() ) |
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184 { |
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185 CreateRemoteDeviceView(); |
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186 } |
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187 else |
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188 { |
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189 // This counter-increasing |
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190 // will force to re-create a registry view later. |
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191 ++iNotHandledRegEventCounter; |
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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 // From class MBtSimpleActiveObserver. |
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197 // Checks if there is an authentication result. |
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198 // --------------------------------------------------------------------------- |
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199 // |
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200 void CBtDevRepositoryImpl::RequestCompletedL( CBtSimpleActive* aActive, TInt aStatus ) |
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201 { |
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202 if ( aActive->RequestId() == BtServiceUtil::ECreateRemoteDeviceViewRequest ) |
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203 { |
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204 HandleCreateRemoteDeviceViewCompletedL( aStatus ); |
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205 } |
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206 else if ( aActive->RequestId() == BtServiceUtil::EGetRemoteDevicesRequest ) |
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207 { |
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208 HandleGetRemoteDevicesCompletedL( aStatus ); |
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209 } |
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210 else if ( aActive->RequestId() == BtServiceUtil::ERegistryPubSubWatcher ) |
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211 { |
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212 TInt myChangedTable; |
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213 iBtRegistryKey.Subscribe( aActive->RequestStatus() ); |
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214 aActive->GoActive(); |
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215 TInt err = iBtRegistryKey.Get( myChangedTable ); |
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216 if( !err && myChangedTable == KRegistryChangeRemoteTable ) |
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217 { |
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218 if ( !iRegistryActive->IsActive() ) |
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219 { |
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220 CreateRemoteDeviceView(); |
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221 } |
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222 else |
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223 { |
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224 iNotHandledRegEventCounter++; |
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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 // --------------------------------------------------------------------------- |
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231 // From class MBtSimpleActiveObserver. |
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232 // Checks if there is an authentication result. |
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233 // --------------------------------------------------------------------------- |
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234 // |
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235 void CBtDevRepositoryImpl::CancelRequest( TInt aRequestId ) |
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236 { |
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237 if ( aRequestId == BtServiceUtil::ECreateRemoteDeviceViewRequest ) |
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238 { |
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239 iBTRegistry.CancelRequest(iRegistryActive->RequestStatus()); |
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240 } |
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241 else if ( aRequestId == BtServiceUtil::EGetRemoteDevicesRequest ) |
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242 { |
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243 iRegRespRemoteDevices->Cancel(); |
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244 } |
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245 else if ( aRequestId == BtServiceUtil::ERegistryPubSubWatcher ) |
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246 { |
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247 iBtRegistryKey.Cancel(); |
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248 } |
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249 } |
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250 |
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251 // --------------------------------------------------------------------------- |
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252 // From class MBtSimpleActiveObserver. |
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253 // --------------------------------------------------------------------------- |
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254 // |
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255 void CBtDevRepositoryImpl::HandleError( CBtSimpleActive* aActive, TInt aError ) |
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256 { |
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257 (void) aError; |
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258 if ( aActive->RequestId() == BtServiceUtil::ECreateRemoteDeviceViewRequest || |
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259 aActive->RequestId() == BtServiceUtil::EGetRemoteDevicesRequest ) |
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260 {// leave happened in registry operation, delete registry response: |
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261 delete iRegRespRemoteDevices; |
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262 iRegRespRemoteDevices = NULL; |
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263 } |
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264 } |
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265 |
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266 // --------------------------------------------------------------------------- |
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267 // From class MBTEngConnObserver. |
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268 // --------------------------------------------------------------------------- |
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269 // |
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270 void CBtDevRepositoryImpl::ConnectComplete( TBTDevAddr& aAddr, TInt aErr, |
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271 RBTDevAddrArray* aConflicts) |
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272 { |
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273 // connection is single profile based, to make sure getting the correct status, |
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274 // we always retrieve it from btengconnman: |
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275 (void)aConflicts; |
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276 (void) aErr; |
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277 TInt pos = iDevices.Find( aAddr, MatchDeviceAddress ); |
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278 if ( pos > -1 ) |
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279 { |
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280 TBTEngConnectionStatus old = iDevices[pos]->ServiceConnectionStatus(); |
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281 TBTEngConnectionStatus status = EBTEngNotConnected; |
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282 // error returned from the call is treated as not connected. |
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283 (void) iBtengConn->IsConnected( aAddr, status ); |
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284 iDevices[pos]->SetServiceConnectionStatus( status ); |
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285 |
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286 if ( old != status && |
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287 ( status == EBTEngConnected || |
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288 status == EBTEngNotConnected ) ) |
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289 { |
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290 for ( TInt i = 0; i < iObservers.Count(); ++i ) |
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291 { |
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292 iObservers[i]->ServiceConnectionChanged( |
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293 *(iDevices[pos]), status == EBTEngConnected ); |
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294 } |
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295 } |
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296 } |
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297 } |
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298 |
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299 // --------------------------------------------------------------------------- |
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300 // From class MBTEngConnObserver. |
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301 // --------------------------------------------------------------------------- |
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302 // |
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303 void CBtDevRepositoryImpl::DisconnectComplete( TBTDevAddr& aAddr, TInt aErr ) |
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304 { |
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305 // unified handling for connections status events: |
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306 ConnectComplete( aAddr, aErr, NULL); |
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307 } |
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308 |
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309 // --------------------------------------------------------------------------- |
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310 // issue creating a remote device view from the registry |
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311 // --------------------------------------------------------------------------- |
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312 // |
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313 void CBtDevRepositoryImpl::CreateRemoteDeviceView() |
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314 { |
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315 iNotHandledRegEventCounter = 0; |
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316 (void) iBTRegistry.CloseView(); |
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317 TBTRegistrySearch searchPattern; |
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318 searchPattern.FindAll(); |
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319 iRegistryActive->SetRequestId( BtServiceUtil::ECreateRemoteDeviceViewRequest ); |
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320 iBTRegistry.CreateView( searchPattern, iRegistryActive->iStatus ); |
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321 iRegistryActive->GoActive(); |
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322 } |
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323 |
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324 // --------------------------------------------------------------------------- |
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325 // gets the paired devices from the view created by CreatePairedDevicesView |
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326 // --------------------------------------------------------------------------- |
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327 // |
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328 void CBtDevRepositoryImpl::GetRemoteDevicesL() |
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329 { |
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330 delete iRegRespRemoteDevices; |
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331 iRegRespRemoteDevices = NULL; |
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332 iRegRespRemoteDevices = CBTRegistryResponse::NewL( iBTRegistry ); |
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333 iRegistryActive->SetRequestId( BtServiceUtil::EGetRemoteDevicesRequest ); |
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334 iRegRespRemoteDevices->Start( iRegistryActive->iStatus ); |
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335 iRegistryActive->GoActive(); |
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336 } |
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337 |
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338 // --------------------------------------------------------------------------- |
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339 // re-create a paired device view if registry was changed during the previous |
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340 // operation. otherwise if the view is not empty, get the remote devices. |
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341 // --------------------------------------------------------------------------- |
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342 // |
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343 void CBtDevRepositoryImpl::HandleCreateRemoteDeviceViewCompletedL( TInt aStatus ) |
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344 { |
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345 // aStatus may indicate the number of devices from registry. |
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346 // However, our algorithm does not rely on this return error |
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347 // for implementation simplicity. |
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348 (void) aStatus; |
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349 if (iNotHandledRegEventCounter) |
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350 { // more registry change detected, create paired device view again: |
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351 CreateRemoteDeviceView( ); |
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352 } |
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353 else |
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354 { |
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355 GetRemoteDevicesL( ); |
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356 } |
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357 } |
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358 |
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359 // --------------------------------------------------------------------------- |
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360 // update remote device list. if registry was changed, create a new view. |
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361 // otherwise inform client for any changes. |
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362 // --------------------------------------------------------------------------- |
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363 // |
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364 void CBtDevRepositoryImpl::HandleGetRemoteDevicesCompletedL( TInt aStatus ) |
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365 { |
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366 // aStatus may indicate the number of devices from registry. |
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367 // However, our algorithm does not rely on this return error. |
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368 (void) aStatus; |
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369 if (iNotHandledRegEventCounter) |
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370 { // more registry change detected, create paired device view again: |
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371 CreateRemoteDeviceView( ); |
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372 return; |
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373 } |
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374 |
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375 UpdateRemoteDeviceRepositoryL(); |
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376 if ( !iInitialized ) |
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377 { |
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378 iInitialized = ETrue; |
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379 // The first time we have got the device lists from registry, |
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380 // Get the connections statuses of these devices from bteng. |
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381 for ( TInt i = iDevices.Count() - 1; i > -1; --i ) |
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382 { |
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383 TBTEngConnectionStatus status = EBTEngNotConnected; |
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384 // error returned from the call is treated as not connected. |
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385 (void) iBtengConn->IsConnected( iDevices[i]->Addr(), status ); |
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386 iDevices[i]->SetServiceConnectionStatus( status ); |
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387 } |
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388 for ( TInt i = 0; i < iObservers.Count(); ++i ) |
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389 { |
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390 iObservers[i]->RepositoryInitialized(); |
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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 // --------------------------------------------------------------------------- |
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396 // update remote devices in local array with the latest data |
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397 // --------------------------------------------------------------------------- |
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398 // |
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399 void CBtDevRepositoryImpl::UpdateRemoteDeviceRepositoryL() |
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400 { |
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401 TIdentityRelation<CBTDevice> addrComp( CompareDeviceByAddress ); |
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402 RBTDeviceArray& devsFromReg = iRegRespRemoteDevices->Results(); |
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403 for ( TInt i = iDevices.Count() - 1; i > -1; --i ) |
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404 { |
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405 TInt pos = devsFromReg.Find( &(iDevices[i]->Device()), addrComp ); |
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406 if ( pos > KErrNotFound ) |
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407 { |
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408 // Device is found in registry, check if its properties have been changed |
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409 TUint similarity = devsFromReg[pos]->CompareTo( iDevices[i]->Device() ); |
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410 TBool changed = EFalse; |
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411 if ( similarity != |
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412 ( CBTDevice::EAllNameProperties | |
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413 TBTNamelessDevice::EAllNamelessProperties) ) |
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414 { |
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415 // This device was updated in registry. |
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416 // move its ownership to local store |
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417 iDevices[i]->SetDeviceL( devsFromReg[pos] ); |
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418 changed = ETrue; |
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419 } |
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420 else |
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421 { |
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422 // This device has no update: |
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423 delete devsFromReg[pos]; |
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424 } |
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425 // either the instance at pos has been moved or deleted. |
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426 devsFromReg.Remove( pos ); |
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427 if ( iInitialized && changed ) |
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428 { |
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429 for ( TInt counter = 0; counter < iObservers.Count(); ++counter ) |
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430 { |
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431 iObservers[counter]->ChangedInRegistry( *iDevices[i], similarity ); |
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432 } |
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433 } |
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434 } |
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435 else |
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436 { |
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437 // This device was deleted from registry. |
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438 // Free it from the local store before informing client. |
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439 TBTDevAddr addr = iDevices[i]->Addr(); |
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440 delete iDevices[i]; |
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441 iDevices.Remove( i ); |
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442 if ( iInitialized ) |
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443 { |
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444 for ( TInt counter = 0; counter < iObservers.Count(); ++counter ) |
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445 { |
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446 iObservers[counter]->DeletedFromRegistry( addr ); |
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447 } |
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448 } |
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449 } |
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450 } |
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451 |
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452 // Remaining devices in iRegRespRemoteDevices are new devices: |
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453 for ( TInt i = devsFromReg.Count()- 1; i > -1 ; --i ) |
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454 { |
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455 CBtDevExtension* devExt = CBtDevExtension::NewLC( devsFromReg[i] ); |
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456 iDevices.AppendL( devExt ); |
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457 CleanupStack::Pop( devExt ); |
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458 devsFromReg.Remove( i ); |
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459 if ( iInitialized ) |
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460 { |
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461 for ( TInt counter = 0; counter < iObservers.Count(); ++counter ) |
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462 { |
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463 iObservers[counter]->AddedToRegistry( *devExt ); |
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464 } |
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465 } |
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466 } |
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467 // the devices in devsFromReg was either deleted, or moved. |
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468 delete iRegRespRemoteDevices; |
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469 iRegRespRemoteDevices = NULL; |
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470 } |
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