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1 /* |
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2 * Copyright (c) 2007 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: This class is a handle to server-side landmark name index |
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15 * |
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16 * |
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17 */ |
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18 |
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19 |
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20 #include <e32base.h> |
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21 #include <s32mem.h> |
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22 #include <epos_poslmservercommon.h> |
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23 |
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24 #include "EPos_RPosLmLocalAccessSubsession.h" |
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25 #include "epos_rposlmlocalnameindex.h" |
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26 |
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27 const TInt KInitialBufferSize = 8 * 1024; // 8K |
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28 |
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29 // ================= MEMBER FUNCTIONS ======================= |
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30 |
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31 //-------------------------------------------------------------------- |
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32 // RPosLmLocalNameIndex::CIndexItem |
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33 //-------------------------------------------------------------------- |
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34 // |
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35 RPosLmLocalNameIndex::CIndexItem::CIndexItem() |
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36 : iId ( KPosLmNullItemId ) |
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37 { |
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38 } |
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39 |
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40 RPosLmLocalNameIndex::CIndexItem::~CIndexItem() |
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41 { |
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42 delete iName; |
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43 } |
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44 |
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45 RPosLmLocalNameIndex::CIndexItem* RPosLmLocalNameIndex::CIndexItem::NewL( |
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46 TPosLmItemId aId, const TDesC& aName ) |
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47 { |
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48 CIndexItem* self = new (ELeave) CIndexItem; |
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49 self->iId = aId; |
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50 self->iName = aName.AllocL(); |
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51 return self; |
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52 } |
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53 |
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54 RPosLmLocalNameIndex::CIndexItem* RPosLmLocalNameIndex::CIndexItem::NewL( |
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55 RReadStream& aStream ) |
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56 { |
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57 CIndexItem* self = new (ELeave) CIndexItem; |
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58 CleanupStack::PushL( self ); |
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59 |
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60 self->iId = aStream.ReadUint32L(); |
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61 TUint32 len = aStream.ReadUint32L(); |
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62 self->iName = HBufC::NewL( len ); |
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63 TPtr ptr = self->iName->Des(); |
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64 aStream.ReadL( ptr, len ); |
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65 |
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66 CleanupStack::Pop( self ); |
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67 return self; |
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68 } |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 RPosLmLocalNameIndex::RPosLmLocalNameIndex( RPosLmLocalAccessSubsession& aSession ) |
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74 : iSession( aSession ), iBuffer( NULL ) |
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75 { |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 TInt RPosLmLocalNameIndex::Open() |
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82 { |
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83 iBuffer = HBufC8::New( KInitialBufferSize ); |
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84 if ( !iBuffer ) |
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85 { |
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86 return KErrNoMemory; |
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87 } |
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88 return iSession.SendReceive( EPosLmServerOpenNameIndex ); |
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89 } |
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90 |
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91 // ----------------------------------------------------------------------------- |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 void RPosLmLocalNameIndex::Close() |
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95 { |
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96 iSession.SendReceive( EPosLmServerCloseNameIndex ); |
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97 delete iBuffer; |
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98 iBuffer = NULL; |
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99 } |
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100 |
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101 // ----------------------------------------------------------------------------- |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 EXPORT_C TInt RPosLmLocalNameIndex::Count() const |
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105 { |
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106 TInt result = iSession.SendReceive( EPosLmServerNameIndexStatus ); |
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107 if ( result >= 0 ) |
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108 return result; |
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109 else |
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110 return 0; |
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111 } |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // ----------------------------------------------------------------------------- |
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115 // |
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116 EXPORT_C TInt RPosLmLocalNameIndex::Status() const |
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117 { |
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118 TInt result = iSession.SendReceive( EPosLmServerNameIndexStatus ); |
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119 if ( result < 0 ) |
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120 return result; |
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121 else |
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122 return KErrNone; |
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123 } |
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124 |
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125 // ----------------------------------------------------------------------------- |
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126 // ----------------------------------------------------------------------------- |
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127 // |
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128 EXPORT_C TInt RPosLmLocalNameIndex::ReadSortedIds( |
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129 TPosLmItemId* aIdArray, TInt aStartPos, TInt aCount, TInt& aRemainder ) |
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130 { |
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131 TPosLmServerReadArrayParam param; |
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132 param.iFirst = aStartPos; |
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133 param.iCount = aCount; |
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134 |
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135 TPckg<TPosLmServerReadArrayParam> pack( param ); |
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136 TPtr8 data( (TUint8*) aIdArray, sizeof( TPosLmItemId ) * aCount ); |
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137 TInt err = iSession.SendReceive( EPosLmServerReadSortedIds, TIpcArgs( &pack, &data )); |
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138 if ( err >= 0 ) |
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139 { |
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140 aRemainder = param.iRemainder; |
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141 return param.iActualCount; |
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142 } |
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143 else |
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144 { |
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145 return err; |
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146 } |
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147 } |
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148 |
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149 // ----------------------------------------------------------------------------- |
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150 // ----------------------------------------------------------------------------- |
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151 // |
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152 void RPosLmLocalNameIndex::AddL( const CPosLandmark& aLandmark ) |
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153 { |
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154 RPointerArray<CPosLandmark> landmarks; // does not own items |
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155 CleanupClosePushL( landmarks ); |
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156 |
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157 landmarks.AppendL( &aLandmark ); |
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158 AddL( landmarks ); |
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159 |
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160 CleanupStack::PopAndDestroy( &landmarks ); |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // ----------------------------------------------------------------------------- |
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165 // |
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166 void RPosLmLocalNameIndex::AddL( RPointerArray<CPosLandmark>& aLandmarks ) |
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167 { |
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168 SendLandmarkDataL( EPosLmServerAddLandmarks, aLandmarks ); |
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169 } |
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170 |
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171 // ----------------------------------------------------------------------------- |
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172 // ----------------------------------------------------------------------------- |
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173 // |
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174 void RPosLmLocalNameIndex::UpdateL( const CPosLandmark& aLandmark ) |
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175 { |
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176 RPointerArray<CPosLandmark> landmarks; // does not own items |
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177 CleanupClosePushL( landmarks ); |
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178 |
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179 landmarks.AppendL( &aLandmark ); |
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180 UpdateL( landmarks ); |
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181 |
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182 CleanupStack::PopAndDestroy( &landmarks ); |
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183 } |
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184 |
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185 // ----------------------------------------------------------------------------- |
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186 // ----------------------------------------------------------------------------- |
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187 // |
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188 void RPosLmLocalNameIndex::UpdateL( RPointerArray<CPosLandmark>& aLandmarks ) |
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189 { |
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190 SendLandmarkDataL( EPosLmServerUpdateLandmarks, aLandmarks ); |
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191 } |
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192 |
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193 |
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194 // ----------------------------------------------------------------------------- |
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195 // Server does not necessarily return all requested items at once |
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196 // it depends on size of actual data. Client will need to repeat request |
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197 // to get all needed landmarks. |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 EXPORT_C void RPosLmLocalNameIndex::ReadSortedLandmarksL( |
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201 TInt aFirst, TInt aCount, |
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202 RPointerArray<CIndexItem>& aLandmarks, |
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203 TInt& aRemainder) |
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204 { |
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205 TPosLmServerReadArrayParam params; |
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206 params.iFirst = aFirst; |
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207 params.iCount = aCount; |
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208 params.iActualCount = 0; |
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209 params.iRemainder = 0; |
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210 params.iMinBufferNeeded = 0; |
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211 TPckg<TPosLmServerReadArrayParam> packParams( params ); |
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212 |
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213 TPtr8 buf = iBuffer->Des(); |
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214 buf.SetMax(); |
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215 |
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216 User::LeaveIfError( iSession.SendReceive( |
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217 EPosLmServerReadNameIndex, TIpcArgs( &packParams, &buf ) ) ); |
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218 |
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219 if ( params.iActualCount ) |
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220 { |
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221 RDesReadStream readStream; |
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222 readStream.Open( *iBuffer ); |
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223 CleanupClosePushL( readStream ); |
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224 |
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225 for ( TInt i = 0; i < params.iActualCount; i++ ) |
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226 { |
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227 CIndexItem* item = CIndexItem::NewL( readStream ); |
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228 CleanupStack::PushL( item ); |
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229 aLandmarks.AppendL( item ); |
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230 CleanupStack::Pop( item ); |
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231 } |
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232 CleanupStack::PopAndDestroy( &readStream ); |
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233 } |
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234 |
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235 // check if server requests bigger buffer for next landmark |
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236 if ( params.iMinBufferNeeded > 0 ) |
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237 { |
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238 iBuffer = iBuffer->ReAllocL(iBuffer->Length() + params.iMinBufferNeeded ); |
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239 } |
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240 |
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241 aRemainder = params.iRemainder; |
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242 } |
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243 |
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244 // ----------------------------------------------------------------------------- |
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245 // ----------------------------------------------------------------------------- |
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246 // |
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247 void RPosLmLocalNameIndex::RemoveL( TPosLmItemId aLmid ) |
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248 { |
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249 RArray<TPosLmItemId> ids; |
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250 CleanupClosePushL( ids ); |
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251 |
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252 ids.AppendL( aLmid ); |
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253 RemoveL( ids ); |
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254 |
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255 CleanupStack::PopAndDestroy( &ids ); |
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256 } |
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257 |
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258 // ----------------------------------------------------------------------------- |
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259 // ----------------------------------------------------------------------------- |
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260 // |
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261 void RPosLmLocalNameIndex::RemoveL( RArray<TPosLmItemId>& aLmids ) |
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262 { |
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263 TInt lmCount = aLmids.Count(); |
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264 if ( lmCount < 1 ) |
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265 return; |
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266 |
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267 TPosLmItemId* ids = new (ELeave) TPosLmItemId[ lmCount ]; |
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268 |
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269 for ( TUint32 i = 0; i < lmCount; i++ ) |
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270 { |
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271 *(ids + i) = aLmids[i]; |
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272 } |
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273 |
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274 TPtrC8 idsDes( reinterpret_cast<const TUint8*>( ids ), sizeof( TPosLmItemId ) * lmCount ); |
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275 |
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276 TInt err = iSession.SendReceive( EPosLmServerUpdateNameIndex, |
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277 TIpcArgs( EPosLmServerRemoveLandmarks, &idsDes ) ); |
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278 delete ids; |
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279 User::LeaveIfError( err ); |
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280 } |
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281 |
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282 |
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283 // ----------------------------------------------------------------------------- |
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284 // ----------------------------------------------------------------------------- |
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285 // |
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286 TInt RPosLmLocalNameIndex::BeginTransaction() |
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287 { |
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288 return iSession.SendReceive( |
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289 EPosLmServerIndexTransaction, TIpcArgs( EPosLmServerTransactionStart ) ); |
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290 } |
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291 |
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292 // ----------------------------------------------------------------------------- |
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293 // ----------------------------------------------------------------------------- |
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294 // |
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295 TInt RPosLmLocalNameIndex::CommitTransaction() |
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296 { |
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297 return iSession.SendReceive( |
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298 EPosLmServerIndexTransaction, TIpcArgs( EPosLmServerTransactionCommit ) ); |
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299 } |
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300 |
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301 // ----------------------------------------------------------------------------- |
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302 // ----------------------------------------------------------------------------- |
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303 // |
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304 TInt RPosLmLocalNameIndex::RollbackTransaction() |
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305 { |
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306 return iSession.SendReceive( |
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307 EPosLmServerIndexTransaction, TIpcArgs( EPosLmServerTransactionRollback ) ); |
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308 } |
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309 |
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310 // ----------------------------------------------------------------------------- |
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311 // ----------------------------------------------------------------------------- |
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312 // |
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313 TInt RPosLmLocalNameIndex::CalculateLandmarkBasicDataSize( |
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314 RPointerArray<CPosLandmark>& aLandmarks ) |
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315 { |
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316 TInt dataSize = 0; |
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317 for (int i = 0; i < aLandmarks.Count(); ++i) |
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318 { |
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319 TPtrC name; |
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320 aLandmarks[i]->GetLandmarkName( name ); |
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321 dataSize += name.Size() |
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322 + sizeof( TPosLmItemId ) |
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323 + sizeof( TInt32 ); // + ID + name length |
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324 } |
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325 return dataSize + sizeof( TInt32 ); // + total count |
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326 } |
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327 |
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328 // ----------------------------------------------------------------------------- |
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329 // ----------------------------------------------------------------------------- |
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330 // |
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331 void RPosLmLocalNameIndex::SendLandmarkDataL( |
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332 TInt aFunction, |
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333 RPointerArray<CPosLandmark>& aLandmarks ) |
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334 { |
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335 if ( aLandmarks.Count() < 1 ) |
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336 return; |
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337 |
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338 TInt dataSize = CalculateLandmarkBasicDataSize( aLandmarks ); |
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339 |
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340 CBufFlat* lmBuffer = CBufFlat::NewL( dataSize ); |
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341 CleanupStack::PushL( lmBuffer ); |
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342 |
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343 RBufWriteStream writeStream; |
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344 writeStream.Open( *lmBuffer ); |
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345 CleanupClosePushL( writeStream ); |
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346 |
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347 writeStream.WriteInt32L( aLandmarks.Count() ); |
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348 |
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349 for ( TInt i = 0; i < aLandmarks.Count(); i++ ) |
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350 { |
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351 TPtrC name; |
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352 aLandmarks[i]->GetLandmarkName( name ); |
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353 |
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354 writeStream.WriteInt32L( aLandmarks[i]->LandmarkId() ); |
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355 writeStream.WriteInt32L( name.Length() ); |
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356 writeStream.WriteL( name ); |
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357 } |
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358 writeStream.CommitL(); |
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359 CleanupStack::PopAndDestroy( &writeStream ); |
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360 |
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361 TPtr8 lmBufferPtr( lmBuffer->Ptr( 0 ) ); |
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362 User::LeaveIfError( iSession.SendReceive( |
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363 EPosLmServerUpdateNameIndex, |
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364 TIpcArgs( aFunction, &lmBufferPtr ) ) ); |
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365 |
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366 CleanupStack::PopAndDestroy( lmBuffer ); |
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367 } |