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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // LBS Bluetooth GPS Configuration API implementation |
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15 // |
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16 |
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17 #include "lbsbtgpsconfigimpl.h" |
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18 #include <centralrepository.h> |
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19 |
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20 /** LBS Bluetooth GPS Configuration central repository UID |
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21 @internalComponent |
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22 */ |
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23 const TUint32 KLbsBtGpsConfigRepositoryUid = 0x102869C1; |
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24 |
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25 //------------------------------------------------------- |
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26 // CENREP FORMAT |
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27 // |
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28 // key format: 0xAAAABBBB |
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29 // where: |
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30 // AAAA = Device index |
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31 // BBBB = Setting index |
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32 |
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33 const TUint32 KDeviceIndexMask = 0xFFFF0000; |
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34 const TUint32 KDeviceIndexShift = 16; |
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35 |
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36 // Maximum number of devices allowed in the list |
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37 const TUint32 KMaxDevices = 20; |
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38 |
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39 // Index of first device in the list |
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40 const TUint32 KFirstDeviceIndex = 0x0001; |
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41 |
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42 // GENERAL SETTINGS (stored under device index 0000) |
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43 |
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44 // Centrep data version |
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45 //const TUint32 KSettingVersion = 0x00000000; |
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46 |
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47 // Stores the last allocated unique device key |
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48 const TUint32 KSettingLastKey = 0x00000001; |
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49 |
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50 // Stores the number of devices in the list |
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51 const TUint32 KSettingNumDevices = 0x00000002; |
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52 |
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53 // PER-DEVICE SETTINGS (BBBB) |
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54 |
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55 // Unique key identifying the device |
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56 const TUint32 KDeviceSettingKey = 0x0000; |
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57 |
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58 // Device type |
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59 const TUint32 KDeviceSettingType = 0x0001; |
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60 |
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61 // Device bluetooth socket address |
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62 const TUint32 KDeviceSettingSockAddr = 0x0002; |
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63 //------------------------------------------------------- |
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64 |
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65 // Partial key and mask for centrep notifications - notify on all changes |
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66 const TUint32 KNotifyPartialKey = 0x00000000; |
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67 const TUint32 KNotifyMask = 0x00000000; |
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68 |
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69 |
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70 // Number of times to retry if the repository is locked |
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71 const TInt KLockedRetries = 10000; |
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72 |
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73 // Time to wait before retrying if the repository is locked |
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74 const TInt KLockedRetryDelay = 100; |
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75 |
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76 |
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77 /** Static constructor (with observer) |
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78 Creates an instance of the LBS Bluetooth GPS Configuration API implementation, |
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79 specifying a callback to recieve update notifications. |
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80 |
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81 @param aObserver [IN] Observer which will recieve update notifications. |
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82 |
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83 @return A newly constructed CLbsBtGpsConfigImpl object. |
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84 |
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85 @capability LocalServices |
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86 |
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87 @internalComponent |
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88 */ |
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89 CLbsBtGpsConfigImpl* CLbsBtGpsConfigImpl::NewL(MLbsBtGpsConfigObserver* aObserver) |
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90 { |
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91 // Check capabilities first |
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92 RProcess process; |
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93 if (!process.HasCapability(ECapabilityLocalServices)) |
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94 { |
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95 User::Leave(KErrPermissionDenied); |
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96 } |
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97 |
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98 CLbsBtGpsConfigImpl* self = new (ELeave) CLbsBtGpsConfigImpl(aObserver); |
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99 CleanupStack::PushL(self); |
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100 self->ConstructL(); |
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101 CleanupStack::Pop(self); |
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102 return self; |
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103 } |
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104 |
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105 |
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106 /** Destructor |
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107 @internalComponent |
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108 */ |
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109 CLbsBtGpsConfigImpl::~CLbsBtGpsConfigImpl() |
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110 { |
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111 Cancel(); |
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112 delete iRepos; |
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113 } |
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114 |
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115 |
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116 /** Returns the number of devices present in the list |
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117 |
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118 @return Number of devices. |
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119 |
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120 @leave KErrPermissionDenied if the client does not have the required capabilities. |
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121 |
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122 @capability LocalServices |
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123 |
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124 @internalComponent |
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125 */ |
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126 TInt CLbsBtGpsConfigImpl::GetDeviceCount(TInt& aCount) |
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127 { |
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128 // Check capabilities first |
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129 RProcess process; |
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130 if (!process.HasCapability(ECapabilityLocalServices)) |
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131 { |
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132 return KErrPermissionDenied; |
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133 } |
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134 |
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135 TInt err = iRepos->Get(KSettingNumDevices, aCount); |
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136 if (err == KErrNotFound) |
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137 { |
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138 // If the entry is not found, the number of devices is zero. |
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139 // Don't treat this as an error. |
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140 aCount = 0; |
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141 err = KErrNone; |
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142 } |
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143 |
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144 return err; |
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145 } |
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146 |
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147 |
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148 /** Adds a new device at the specified position index within the list |
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149 |
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150 @param aAddress [In] Address of the new device. |
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151 @param aPosition [In] Position in the list at which to add the device, note that any existing entries below this position will be shifted down. |
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152 @param aKey [Out] Recieves the unique key assigned to identify the new device. |
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153 |
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154 Specifying aPosition >= DeviceCount() will result in the device being added to the end of the list. |
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155 |
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156 @return KErrNone if the operation succeeded. |
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157 KErrAlreadyExists if an entry with the same address is already present in the list. |
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158 KErrOverflow if there is no space left to add another entry. |
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159 KErrPermissionDenied if the client does not have the required capabilities. |
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160 |
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161 @capability LocalServices |
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162 @capability WriteDeviceData |
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163 |
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164 @internalComponent |
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165 */ |
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166 TInt CLbsBtGpsConfigImpl::AddDevice(const TBTDevAddr& aAddress, TInt aPosition, TLbsBtGpsEntryKey& aKey) |
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167 { |
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168 // Check capabilities first |
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169 RProcess process; |
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170 if (!process.HasCapability(ECapabilityLocalServices)) |
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171 { |
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172 return KErrPermissionDenied; |
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173 } |
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174 if (!process.HasCapability(ECapabilityWriteDeviceData)) |
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175 { |
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176 return KErrPermissionDenied; |
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177 } |
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178 |
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179 TRAPD(err, AddDeviceL(aAddress, aPosition, aKey)); |
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180 return err; |
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181 } |
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182 |
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183 |
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184 /** Removes a device from the list |
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185 |
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186 @param aKey [In] The key identifying the device. |
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187 |
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188 @return KErrNone if the operation succeeded. |
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189 KErrNotFound if the specified device is not present in the list. |
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190 KErrPermissionDenied if the client does not have the required capabilities. |
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191 |
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192 @capability LocalServices |
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193 @capability WriteDeviceData |
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194 |
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195 @internalComponent |
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196 */ |
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197 TInt CLbsBtGpsConfigImpl::RemoveDevice(TLbsBtGpsEntryKey aKey) |
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198 { |
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199 // Check capabilities first |
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200 RProcess process; |
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201 if (!process.HasCapability(ECapabilityLocalServices)) |
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202 { |
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203 return KErrPermissionDenied; |
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204 } |
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205 if (!process.HasCapability(ECapabilityWriteDeviceData)) |
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206 { |
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207 return KErrPermissionDenied; |
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208 } |
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209 |
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210 TRAPD(err, RemoveDeviceL(aKey)); |
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211 return err; |
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212 } |
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213 |
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214 |
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215 /** Empties the device list, removing all device entries |
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216 |
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217 @return KErrNone if the operation succeeded. |
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218 KErrPermissionDenied if the client does not have the required capabilities. |
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219 |
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220 @capability LocalServices |
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221 @capability WriteDeviceData |
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222 |
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223 @internalComponent |
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224 */ |
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225 TInt CLbsBtGpsConfigImpl::EmptyDeviceList() |
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226 { |
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227 // Check capabilities first |
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228 RProcess process; |
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229 if (!process.HasCapability(ECapabilityLocalServices)) |
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230 { |
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231 return KErrPermissionDenied; |
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232 } |
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233 if (!process.HasCapability(ECapabilityWriteDeviceData)) |
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234 { |
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235 return KErrPermissionDenied; |
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236 } |
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237 |
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238 TRAPD(err, EmptyDeviceListL()); |
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239 return err; |
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240 } |
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241 |
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242 |
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243 /** Reorders a device in the list by specifying a new position index |
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244 |
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245 @param aKey [In] The key identifying the device. |
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246 @param aNewPosition [In] New position index for the device in the list (where 0 indicates the start of the list). |
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247 |
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248 The device identified by the key will assume the specified position in the list, shifting exsiting devices as |
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249 required in order to achieve this. |
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250 |
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251 Specifying aNewPosition = 0 will result in the device being moved to the start of the list. |
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252 Specifying aNewPosition >= DeviceCount() will result in the device being moved to the end of the list. |
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253 |
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254 When a device is moved towards the start of the list, other devices located between the old and new positions |
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255 will be shifted towards the end of the list by one place. For example, starting with a list {A,B,C,D,E}, moving |
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256 device D to position 1 would result in {A,D,B,C,E}. |
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257 |
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258 Similarly, when a device is moved towards the end of the list, other devices located between the old and new |
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259 positions will be shifted towards the start of the list by one place. For example, starting with a list {A,B,C,D,E}, |
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260 moving device B to position 3 would result in {A,C,D,B,E} |
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261 |
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262 @return KErrNone if the operation succeeded. |
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263 ErrNotFound if the specified device is not present in the list. |
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264 KErrPermissionDenied if the client does not have the required capabilities. |
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265 |
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266 @capability LocalServices |
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267 @capability WriteDeviceData |
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268 |
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269 @internalComponent |
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270 */ |
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271 TInt CLbsBtGpsConfigImpl::ReorderDevice(TLbsBtGpsEntryKey aKey, TInt aNewPosition) |
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272 { |
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273 // Check capabilities first |
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274 RProcess process; |
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275 if (!process.HasCapability(ECapabilityLocalServices)) |
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276 { |
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277 return KErrPermissionDenied; |
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278 } |
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279 if (!process.HasCapability(ECapabilityWriteDeviceData)) |
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280 { |
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281 return KErrPermissionDenied; |
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282 } |
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283 |
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284 TRAPD(err, ReorderDeviceL(aKey, aNewPosition)); |
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285 return err; |
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286 } |
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287 |
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288 |
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289 /** Retrieves the list of devices |
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290 |
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291 @param aList [Out] Reference to an empty RPointerArray to populate with device entries from the list. |
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292 |
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293 @leave KErrPermissionDenied if the client does not have the required capabilities. |
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294 |
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295 @capability LocalServices |
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296 |
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297 @internalComponent |
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298 */ |
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299 void CLbsBtGpsConfigImpl::GetDeviceListL(RPointerArray<TLbsBtGpsDeviceInfo>& aList) |
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300 { |
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301 // Check capabilities first |
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302 RProcess process; |
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303 if (!process.HasCapability(ECapabilityLocalServices)) |
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304 { |
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305 User::Leave(KErrPermissionDenied); |
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306 } |
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307 |
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308 // Attempt to start a transaction |
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309 User::LeaveIfError(StartTransactionL(CRepository::EReadTransaction)); |
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310 |
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311 TInt deviceCount; |
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312 User::LeaveIfError(GetDeviceCount(deviceCount)); |
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313 |
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314 for (TInt index=0; index<deviceCount; ++index) |
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315 { |
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316 |
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317 TLbsBtGpsDeviceRecord devRecord; |
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318 |
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319 if (ReadDeviceRecord(index, devRecord) == KErrNone) |
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320 { |
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321 TLbsBtGpsDeviceInfo* devInfo = new (ELeave) TLbsBtGpsDeviceInfo(); |
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322 CleanupStack::PushL(devInfo); |
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323 devInfo->SetKey(devRecord.Key()); |
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324 devInfo->SetAddress(devRecord.SocketAddress().BTAddr()); |
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325 devInfo->SetType(devRecord.Type()); |
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326 aList.Append(devInfo); |
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327 CleanupStack::Pop(devInfo); |
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328 } |
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329 |
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330 } |
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331 |
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332 // End central repository transaction |
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333 User::LeaveIfError(EndTransaction()); |
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334 } |
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335 |
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336 |
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337 /** This methods is reserved for future expansion and should not be used |
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338 |
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339 @param aFunctionNumber Reserved for future expansion |
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340 @param aPtr1 Reserved for future expansion |
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341 @param aPtr2 Reserved for future expansion |
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342 |
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343 @capability LocalServices |
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344 |
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345 @internalComponent |
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346 */ |
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347 TAny* CLbsBtGpsConfigImpl::ExtendedInterface(TInt /*aFunctionNumber*/, TAny* /*aPtr1*/, TAny* /*aPtr2*/) |
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348 { |
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349 return NULL; |
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350 } |
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351 |
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352 |
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353 // ------------------ Internal API methods ------------------ |
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354 |
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355 |
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356 /** Updates the device information for a device in the list |
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357 |
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358 @param aDeviceInfo [In] The updated device info for the specified device. The key should identify an existing device in the list. |
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359 |
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360 @return KErrNone if the operation succeeded. |
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361 KErrNotFound if the specified device is not present in the list. |
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362 KErrPermissionDenied if the client does not have the required capabilities. |
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363 |
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364 @capability LocalServices |
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365 @capability WriteDeviceData |
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366 |
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367 @internalComponent |
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368 */ |
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369 TInt CLbsBtGpsConfigImpl::UpdateDevice(const TLbsBtGpsDeviceRecord& aDeviceRecord) |
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370 { |
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371 // Check capabilities first |
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372 RProcess process; |
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373 if (!process.HasCapability(ECapabilityLocalServices)) |
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374 { |
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375 return KErrPermissionDenied; |
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376 } |
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377 if (!process.HasCapability(ECapabilityWriteDeviceData)) |
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378 { |
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379 return KErrPermissionDenied; |
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380 } |
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381 |
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382 TRAPD(err, UpdateDeviceL(aDeviceRecord)); |
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383 return err; |
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384 } |
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385 |
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386 |
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387 /** Retrieves the list of device records |
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388 |
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389 @param aList [Out] Reference to an empty RPointerArray to populate with device records from the list. |
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390 |
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391 @leave KErrPermissionDenied if the client does not have the required capabilities. |
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392 |
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393 @capability LocalServices |
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394 |
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395 @internalComponent |
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396 */ |
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397 void CLbsBtGpsConfigImpl::GetDeviceRecordListL(RPointerArray<TLbsBtGpsDeviceRecord>& aRecordList) |
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398 { |
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399 // Check capabilities first |
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400 RProcess process; |
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401 if (!process.HasCapability(ECapabilityLocalServices)) |
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402 { |
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403 User::Leave(KErrPermissionDenied); |
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404 } |
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405 |
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406 // Attempt to start a transaction |
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407 User::LeaveIfError(StartTransactionL(CRepository::EReadTransaction)); |
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408 |
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409 // Get the number of devices in the list |
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410 TInt deviceCount; |
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411 User::LeaveIfError(GetDeviceCount(deviceCount)); |
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412 |
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413 for (TInt index=0; index<deviceCount; ++index) |
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414 { |
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415 // Create a new record container |
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416 TLbsBtGpsDeviceRecord* devRecord = new (ELeave) TLbsBtGpsDeviceRecord(); |
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417 CleanupStack::PushL(devRecord); |
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418 |
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419 // Read the record into the container |
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420 User::LeaveIfError(ReadDeviceRecord(index, *devRecord)); |
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421 |
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422 // Add to the passes list |
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423 aRecordList.Append(devRecord); |
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424 |
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425 CleanupStack::Pop(devRecord); |
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426 } |
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427 |
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428 // End central repository transaction |
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429 User::LeaveIfError(EndTransaction()); |
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430 } |
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431 |
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432 |
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433 // ------------------ Protected methods ------------------ |
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434 |
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435 |
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436 /** Active object DoCancel method |
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437 @internalComponent |
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438 */ |
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439 void CLbsBtGpsConfigImpl::DoCancel() |
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440 { |
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441 iRepos->NotifyCancel(KNotifyPartialKey, KNotifyMask); |
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442 } |
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443 |
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444 |
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445 /** Active object RunL method |
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446 @internalComponent |
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447 */ |
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448 void CLbsBtGpsConfigImpl::RunL() |
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449 { |
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450 if (iObserver) |
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451 { |
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452 iObserver->OnDeviceListUpdate(); |
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453 iRepos->NotifyRequest(KNotifyPartialKey, KNotifyMask, iStatus); |
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454 SetActive(); |
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455 } |
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456 } |
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457 |
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458 |
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459 /** Adds a new device at the specified position index within the list - leaving version |
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460 |
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461 @see AddDevice |
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462 |
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463 @internalComponent |
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464 */ |
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465 void CLbsBtGpsConfigImpl::AddDeviceL(const TBTDevAddr& aAddress, TInt aPosition, TLbsBtGpsEntryKey& aKey) |
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466 { |
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467 TInt err; |
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468 TInt index; |
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469 |
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470 aKey = KLbsBtGpsEntryKeyNull; |
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471 |
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472 // Attempt to start a transaction |
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473 User::LeaveIfError(StartTransactionL(CRepository::EReadWriteTransaction)); |
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474 |
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475 // Retrieve the current number of devices in the list |
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476 TInt deviceCount; |
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477 User::LeaveIfError(GetDeviceCount(deviceCount)); |
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478 |
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479 // Check that the desired position is in range, adjust if required |
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480 if (aPosition < 0 || aPosition > deviceCount) |
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481 { |
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482 aPosition = deviceCount; |
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483 } |
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484 |
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485 // Leave if we've reached the maximum number of devices allowed in the list |
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486 if (deviceCount >= KMaxDevices) |
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487 { |
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488 User::Leave(KErrOverflow); |
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489 } |
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490 |
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491 // Device record container |
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492 TLbsBtGpsDeviceRecord devRecord; |
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493 |
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494 // Leave if a device with this address is already present in the list |
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495 for (index=0; index<deviceCount; ++index) |
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496 { |
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497 User::LeaveIfError(ReadDeviceRecord(index, devRecord)); |
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498 |
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499 if (devRecord.SocketAddress().BTAddr() == aAddress) |
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500 { |
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501 // Return the key identifying the existing device |
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502 aKey = devRecord.Key(); |
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503 User::Leave(KErrAlreadyExists); |
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504 } |
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505 } |
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506 |
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507 // Read the last allocated device key |
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508 TInt key; |
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509 err = iRepos->Get(KSettingLastKey, key); |
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510 if (err == KErrNotFound) |
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511 { |
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512 // Value not present in centrep, initialise sequence to NULL key |
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513 key = KLbsBtGpsEntryKeyNull; |
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514 } |
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515 else |
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516 { |
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517 User::LeaveIfError(err); |
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518 } |
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519 |
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520 // Increment to get next available key to assign to the new device |
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521 ++key; |
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522 |
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523 // Write current key |
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524 User::LeaveIfError(iRepos->Set(KSettingLastKey, key)); |
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525 |
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526 // Move all entries following the desired position down one place, starting from the end |
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527 for (index=deviceCount-1; index>=aPosition; --index) |
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528 { |
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529 User::LeaveIfError(MoveDeviceRecord(index, index+1)); |
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530 } |
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531 |
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532 // Build a device record to add to the list |
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533 devRecord.SetKey(key); |
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534 |
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535 TBTSockAddr sockAddr; |
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536 sockAddr.SetBTAddr(aAddress); |
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537 devRecord.SetSocketAddress(sockAddr); |
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538 |
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539 // Set unknown type for new devices |
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540 devRecord.SetType(TLbsBtGpsDeviceInfo::ELbsBtGpsDeviceUnknown); |
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541 |
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542 // Write the new device record at the desired position |
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543 User::LeaveIfError(WriteDeviceRecord(aPosition, devRecord)); |
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544 |
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545 // Increment device counter and write to cenrep |
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546 ++deviceCount; |
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547 User::LeaveIfError(iRepos->Set(KSettingNumDevices, deviceCount)); |
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548 |
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549 // End central repository transaction |
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550 User::LeaveIfError(EndTransaction()); |
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551 |
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552 // Set key to return to client now the transaction has succeeded |
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553 aKey = key; |
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554 } |
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555 |
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556 |
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557 /** Removes a device from the list - leaving version |
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558 |
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559 @see RemoveDevice |
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560 |
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561 @internalComponent |
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562 */ |
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563 void CLbsBtGpsConfigImpl::RemoveDeviceL(TLbsBtGpsEntryKey aKey) |
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564 { |
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565 // Attempt to start a transaction |
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566 User::LeaveIfError(StartTransactionL(CRepository::EReadWriteTransaction)); |
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567 |
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568 // Get the number of devices in the list |
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569 TInt deviceCount; |
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570 User::LeaveIfError(GetDeviceCount(deviceCount)); |
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571 |
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572 // Flag to indicate if we have found the device record yet |
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573 TBool foundDevice = EFalse; |
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574 |
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575 // Device record container |
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576 TLbsBtGpsDeviceRecord devRecord; |
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577 |
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578 // Look for the device record |
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579 for (TInt index=0; index<deviceCount; ++index) |
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580 { |
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581 User::LeaveIfError(ReadDeviceRecord(index, devRecord)); |
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582 |
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583 if (foundDevice) |
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584 { |
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585 // Move following records up one place |
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586 User::LeaveIfError(MoveDeviceRecord(index, index-1)); |
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587 } |
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588 else if (devRecord.Key() == aKey) |
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589 { |
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590 // Found the device record, delete it from cenrep |
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591 foundDevice = ETrue; |
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592 |
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593 TUint32 keyBase = (KFirstDeviceIndex + index) << KDeviceIndexShift; |
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594 TUint32 errKey; |
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595 |
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596 User::LeaveIfError(iRepos->Delete(keyBase, KDeviceIndexMask, errKey)); |
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597 } |
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598 } |
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599 |
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600 if (!foundDevice) |
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601 { |
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602 User::Leave(KErrNotFound); |
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603 } |
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604 |
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605 // Decrement device counter and write to cenrep |
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606 --deviceCount; |
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607 User::LeaveIfError(iRepos->Set(KSettingNumDevices, deviceCount)); |
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608 |
|
609 // End central repository transaction |
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610 User::LeaveIfError(EndTransaction()); |
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611 } |
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612 |
|
613 |
|
614 /** Empties the device list, removing all device entries - leaving version |
|
615 |
|
616 @see EmptyDeviceList |
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617 |
|
618 @internalComponent |
|
619 */ |
|
620 void CLbsBtGpsConfigImpl::EmptyDeviceListL() |
|
621 { |
|
622 // Read last allocated device key as we want to save this |
|
623 TInt key; |
|
624 TInt err = iRepos->Get(KSettingLastKey, key); |
|
625 if (err == KErrNotFound) |
|
626 { |
|
627 // Value not present in centrep, initialise sequence to NULL key |
|
628 key = KLbsBtGpsEntryKeyNull; |
|
629 } |
|
630 else if (err != KErrNone) |
|
631 { |
|
632 User::Leave(err); |
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633 } |
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634 |
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635 // Reset the repository |
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636 User::LeaveIfError(iRepos->Reset()); |
|
637 |
|
638 // Write back last key value |
|
639 User::LeaveIfError(iRepos->Set(KSettingLastKey, key)); |
|
640 } |
|
641 |
|
642 |
|
643 /** Reorders a device in the list by specifying a new position index - leaving version |
|
644 |
|
645 @see ReorderDevice |
|
646 |
|
647 @internalComponent |
|
648 */ |
|
649 void CLbsBtGpsConfigImpl::ReorderDeviceL(TLbsBtGpsEntryKey aKey, TInt aNewPosition) |
|
650 { |
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651 // Attempt to start a transaction |
|
652 User::LeaveIfError(StartTransactionL(CRepository::EReadWriteTransaction)); |
|
653 |
|
654 // Get the number of devices in the list |
|
655 TInt deviceCount; |
|
656 User::LeaveIfError(GetDeviceCount(deviceCount)); |
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657 |
|
658 // Check that the desired position is in range, adjust if required |
|
659 if (aNewPosition < 0 || aNewPosition >= deviceCount) |
|
660 { |
|
661 aNewPosition = deviceCount-1; |
|
662 } |
|
663 |
|
664 // This will store the current position of the device, if found |
|
665 TInt oldPosition = KErrNotFound; |
|
666 |
|
667 // This will store the device record while we move it |
|
668 TLbsBtGpsDeviceRecord devRecord; |
|
669 |
|
670 // Look for the device entry to move |
|
671 TInt index; |
|
672 for (index=0; index<deviceCount; ++index) |
|
673 { |
|
674 User::LeaveIfError(ReadDeviceRecord(index, devRecord)); |
|
675 |
|
676 if (devRecord.Key() == aKey) |
|
677 { |
|
678 // Found the device record |
|
679 oldPosition = index; |
|
680 break; |
|
681 } |
|
682 } |
|
683 |
|
684 // Leave if the device entry to move cannot be found in the list |
|
685 if (oldPosition == KErrNotFound) |
|
686 { |
|
687 User::Leave(KErrNotFound); |
|
688 } |
|
689 |
|
690 // Check if device record needs to be moved |
|
691 if (oldPosition != aNewPosition) |
|
692 { |
|
693 // Delete the record from cenrep |
|
694 TUint32 keyBase = (KFirstDeviceIndex + oldPosition) << KDeviceIndexShift; |
|
695 TUint32 errKey; |
|
696 User::LeaveIfError(iRepos->Delete(keyBase, KDeviceIndexMask, errKey)); |
|
697 |
|
698 if (oldPosition < aNewPosition) |
|
699 { |
|
700 // Moving towards the end of the list - shift intermediate entries up one place |
|
701 for (index = oldPosition + 1; index <= aNewPosition; ++index) |
|
702 { |
|
703 User::LeaveIfError(MoveDeviceRecord(index,index-1)); |
|
704 } |
|
705 } |
|
706 else if (oldPosition > aNewPosition) |
|
707 { |
|
708 // Moving towards the start of the list - shift intermediate entries down one place |
|
709 for (index = oldPosition - 1; index >= aNewPosition; --index) |
|
710 { |
|
711 User::LeaveIfError(MoveDeviceRecord(index,index+1)); |
|
712 } |
|
713 } |
|
714 |
|
715 // Write the record at the new position |
|
716 User::LeaveIfError(WriteDeviceRecord(aNewPosition, devRecord)); |
|
717 } |
|
718 |
|
719 // End central repository transaction |
|
720 User::LeaveIfError(EndTransaction()); |
|
721 } |
|
722 |
|
723 |
|
724 /** Updates the device information for a device in the list - leaving version |
|
725 |
|
726 @see UpdateDevice |
|
727 |
|
728 @internalComponent |
|
729 */ |
|
730 void CLbsBtGpsConfigImpl::UpdateDeviceL(const TLbsBtGpsDeviceRecord& aDeviceRecord) |
|
731 { |
|
732 // Attempt to start a transaction |
|
733 User::LeaveIfError(StartTransactionL(CRepository::EReadWriteTransaction)); |
|
734 |
|
735 // Get the number of devices in the list |
|
736 TInt deviceCount; |
|
737 User::LeaveIfError(GetDeviceCount(deviceCount)); |
|
738 |
|
739 // Flag to indicate if we have found the device record yet |
|
740 TBool foundDevice = EFalse; |
|
741 |
|
742 // Device record container |
|
743 TLbsBtGpsDeviceRecord devRecord; |
|
744 |
|
745 // Look for the device record |
|
746 for (TInt index=0; index<deviceCount; ++index) |
|
747 { |
|
748 User::LeaveIfError(ReadDeviceRecord(index, devRecord)); |
|
749 |
|
750 if (devRecord.Key() == aDeviceRecord.Key()) |
|
751 { |
|
752 // Found the device record, update it with the new one passed in |
|
753 foundDevice = ETrue; |
|
754 User::LeaveIfError(WriteDeviceRecord(index, aDeviceRecord)); |
|
755 break; |
|
756 } |
|
757 } |
|
758 |
|
759 if (!foundDevice) |
|
760 { |
|
761 User::Leave(KErrNotFound); |
|
762 } |
|
763 |
|
764 // End central repository transaction |
|
765 User::LeaveIfError(EndTransaction()); |
|
766 } |
|
767 |
|
768 |
|
769 /** Attempt to start a central repository transaction |
|
770 |
|
771 @return KErrNone if the operation succeeded. |
|
772 |
|
773 @internalComponent |
|
774 */ |
|
775 TInt CLbsBtGpsConfigImpl::StartTransactionL(CRepository::TTransactionMode aMode) |
|
776 { |
|
777 TInt retries = 0; |
|
778 |
|
779 while (ETrue) |
|
780 { |
|
781 // Attempt to start the transaction |
|
782 TInt err = iRepos->StartTransaction(aMode); |
|
783 |
|
784 if (err == KErrNone) |
|
785 { |
|
786 // Transaction started succesfully |
|
787 break; |
|
788 } |
|
789 else if (err == KErrLocked && (retries++ < KLockedRetries)) |
|
790 { |
|
791 // Repository is locked by another client, wait before retrying |
|
792 User::After(TTimeIntervalMicroSeconds32(KLockedRetryDelay)); |
|
793 } |
|
794 else |
|
795 { |
|
796 // Another error occurred, or maximum number of retries reached |
|
797 return err; |
|
798 } |
|
799 } |
|
800 |
|
801 // Make sure the transaction is cancelled if something goes wrong |
|
802 iRepos->CleanupCancelTransactionPushL(); |
|
803 |
|
804 return KErrNone; |
|
805 } |
|
806 |
|
807 |
|
808 /** End (commit) a central repository transaction |
|
809 |
|
810 @return KErrNone if the operation succeeded. |
|
811 |
|
812 @internalComponent |
|
813 */ |
|
814 TInt CLbsBtGpsConfigImpl::EndTransaction() |
|
815 { |
|
816 CleanupStack::Pop(); // CleanupCancelTransaction |
|
817 |
|
818 TUint32 errKey; |
|
819 return iRepos->CommitTransaction(errKey); |
|
820 } |
|
821 |
|
822 |
|
823 /** Read a device record from cenrep by index |
|
824 |
|
825 @param aIndex [In] The index of the device entry to read |
|
826 @param aDeviceInfo [Out] Device info to fill from cenrep |
|
827 |
|
828 StartTransaction should have been called. |
|
829 |
|
830 @internalComponent |
|
831 */ |
|
832 TInt CLbsBtGpsConfigImpl::ReadDeviceRecord(TInt aIndex, TLbsBtGpsDeviceRecord& aDeviceRecord) |
|
833 { |
|
834 TInt err; |
|
835 TUint32 keyBase = (KFirstDeviceIndex + aIndex) << KDeviceIndexShift; |
|
836 |
|
837 TInt deviceKey; |
|
838 err = iRepos->Get(keyBase | KDeviceSettingKey, deviceKey); |
|
839 if (err != KErrNone) |
|
840 { |
|
841 return err; |
|
842 } |
|
843 aDeviceRecord.SetKey(deviceKey); |
|
844 |
|
845 TInt deviceType; |
|
846 err = iRepos->Get(keyBase | KDeviceSettingType, deviceType); |
|
847 if (err != KErrNone) |
|
848 { |
|
849 return err; |
|
850 } |
|
851 aDeviceRecord.SetType(deviceType); |
|
852 |
|
853 TBuf<KMaxSockAddrSize> addressBuffer; |
|
854 err = iRepos->Get(keyBase | KDeviceSettingSockAddr, addressBuffer); |
|
855 if (err != KErrNone) |
|
856 { |
|
857 return err; |
|
858 } |
|
859 TBTSockAddr address; |
|
860 address.Copy(addressBuffer); |
|
861 aDeviceRecord.SetSocketAddress(address); |
|
862 |
|
863 return KErrNone; |
|
864 } |
|
865 |
|
866 |
|
867 /** Write a device record to cenrep by index |
|
868 |
|
869 @param aIndex [In] The index of the device entry to write |
|
870 @param aDeviceInfo [Out] Device info to write to cenrep |
|
871 |
|
872 StartTransaction should have been called. |
|
873 |
|
874 @internalComponent |
|
875 */ |
|
876 TInt CLbsBtGpsConfigImpl::WriteDeviceRecord(TInt aIndex, const TLbsBtGpsDeviceRecord& aDeviceRecord) |
|
877 { |
|
878 TInt err; |
|
879 TUint32 keyBase = (KFirstDeviceIndex + aIndex) << KDeviceIndexShift; |
|
880 |
|
881 TInt deviceKey = aDeviceRecord.Key(); |
|
882 err = iRepos->Set(keyBase | KDeviceSettingKey, deviceKey); |
|
883 if (err != KErrNone) |
|
884 { |
|
885 return err; |
|
886 } |
|
887 |
|
888 TInt deviceType = aDeviceRecord.Type(); |
|
889 err = iRepos->Set(keyBase | KDeviceSettingType, deviceType); |
|
890 if (err != KErrNone) |
|
891 { |
|
892 return err; |
|
893 } |
|
894 |
|
895 TBuf<KMaxSockAddrSize> addressBuffer; |
|
896 addressBuffer.Copy(aDeviceRecord.SocketAddress()); |
|
897 err = iRepos->Set(keyBase | KDeviceSettingSockAddr, addressBuffer); |
|
898 if (err != KErrNone) |
|
899 { |
|
900 return err; |
|
901 } |
|
902 |
|
903 return KErrNone; |
|
904 } |
|
905 |
|
906 |
|
907 /** Move a device record from old to new position |
|
908 |
|
909 @param aOldIndex [In] The current index of the device record in the list |
|
910 @param aOldIndex [In] The new index of the device record in the list |
|
911 |
|
912 StartTransaction should have been called. |
|
913 |
|
914 @internalComponent |
|
915 */ |
|
916 TInt CLbsBtGpsConfigImpl::MoveDeviceRecord(TInt aOldIndex, TInt aNewIndex) |
|
917 { |
|
918 TUint32 oldKeyBase = (KFirstDeviceIndex + aOldIndex) << KDeviceIndexShift; |
|
919 TUint32 newKeyBase = (KFirstDeviceIndex + aNewIndex) << KDeviceIndexShift; |
|
920 TUint32 errKey; |
|
921 |
|
922 return iRepos->Move(oldKeyBase, newKeyBase, KDeviceIndexMask, errKey); |
|
923 } |
|
924 |
|
925 |
|
926 /** Class constructor |
|
927 |
|
928 @param aObserver [IN] Optional observer, which will recieve update notifications. |
|
929 |
|
930 @internalComponent |
|
931 */ |
|
932 CLbsBtGpsConfigImpl::CLbsBtGpsConfigImpl(MLbsBtGpsConfigObserver* aObserver) |
|
933 : CActive(CActive::EPriorityStandard), |
|
934 iObserver(aObserver) |
|
935 { |
|
936 CActiveScheduler::Add(this); |
|
937 } |
|
938 |
|
939 |
|
940 /** Second phase constructor |
|
941 @internalComponent |
|
942 */ |
|
943 void CLbsBtGpsConfigImpl::ConstructL() |
|
944 { |
|
945 iRepos = CRepository::NewL(TUid::Uid(KLbsBtGpsConfigRepositoryUid)); |
|
946 iRepos->NotifyRequest(KNotifyPartialKey, KNotifyMask, iStatus); |
|
947 SetActive(); |
|
948 } |