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1 /* |
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2 * Copyright (c) 2002 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: Session to AknIconServer. |
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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 FILES |
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21 |
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22 #include <e32std.h> |
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23 |
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24 #include "AknIconSrvSession.h" |
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25 #include "AknIconSrv.h" |
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26 #include "AknIconPanic.h" |
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27 #include "AknIconSrvIconItem.h" |
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28 #include "AknIconTraces.h" |
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29 |
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30 |
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31 // CONSTANTS |
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32 |
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33 const TInt KIconItemArrayGranularity = 4; |
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34 const TInt KPreservedItemArrayGranularity = 1; |
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35 |
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36 // ================= MEMBER FUNCTIONS ========================================== |
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37 |
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38 CAknIconSrvSession::CAknIconSrvSession() : |
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39 CSession2(), |
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40 iIconItems( KIconItemArrayGranularity ), |
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41 iPreservedItems( KPreservedItemArrayGranularity ), |
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42 iClientPanicCode(EBadServerRequest) |
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43 { |
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44 } |
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45 |
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46 CAknIconSrvSession::~CAknIconSrvSession() |
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47 { |
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48 // Cleanup all icons and preserved icon data items referred by the session |
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49 // that were not freed normally, for example due to a client thread panic. |
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50 |
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51 TInt count = iIconItems.Count(); |
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52 |
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53 for ( TInt i = 0 ; i < count ; i++ ) |
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54 { |
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55 Server()->CleanupSessionIconItem( iIconItems[i] ); |
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56 } |
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57 |
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58 count = iPreservedItems.Count(); |
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59 |
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60 for ( TInt j = 0 ; j < count ; j++ ) |
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61 { |
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62 Server()->CleanupSessionPreservedItem( iPreservedItems[j] ); |
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63 } |
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64 |
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65 iIconItems.Close(); |
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66 iPreservedItems.Close(); |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // CAknIconSrvSession::DispatchMessageL() |
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71 // ----------------------------------------------------------------------------- |
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72 |
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73 TInt CAknIconSrvSession::DispatchMessageL( const RMessage2& aMessage ) |
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74 { |
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75 // Debug heap testing. |
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76 #ifdef _DEBUG |
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77 if ( iDbgHeapFailNextCount ) |
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78 { |
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79 __UHEAP_FAILNEXT( iDbgHeapFailNextCount ); |
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80 iDbgHeapFailNextCount++; |
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81 } |
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82 #endif // _DEBUG |
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83 |
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84 TInt ret = KErrNone; |
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85 |
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86 switch ( aMessage.Function() ) |
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87 { |
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88 case ERetrieveOrCreateSharedIcon: |
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89 { |
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90 // Append and remove a dummy element to prevent memory allocation |
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91 // failure when the real item is appended. |
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92 TAknIconSrvSessionIconItem dummy; |
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93 User::LeaveIfError( iIconItems.Append( dummy ) ); |
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94 iIconItems.Remove( iIconItems.Count() - 1 ); |
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95 |
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96 const CAknIconSrvIconItem* item = |
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97 Server()->RetrieveOrCreateSharedIconL(); |
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98 |
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99 TInt users = ( item->iMaskId < 0 ? 1 : 2 ); |
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100 |
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101 // Append in here cannot fail now because of the operation done above. |
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102 ModifyUserCount( item, users ); // bitmap and optionally mask |
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103 break; |
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104 } |
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105 |
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106 case EFreeBitmap: |
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107 { |
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108 const CAknIconSrvIconItem* item = Server()->FreeBitmapL(); |
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109 ModifyUserCount( item, -1 ); |
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110 break; |
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111 } |
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112 |
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113 case EGetContentDimensions: |
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114 { |
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115 Server()->GetContentDimensionsL(); |
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116 break; |
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117 } |
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118 |
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119 case EPreserveIconData: |
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120 { |
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121 // Append and remove a dummy element to prevent memory allocation |
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122 // failure when the real item is appended. |
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123 TAknIconSrvSessionPreservedItem dummy; |
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124 User::LeaveIfError( iPreservedItems.Append( dummy ) ); |
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125 iPreservedItems.Remove( iPreservedItems.Count() - 1 ); |
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126 |
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127 const CAknIconDataItem* item = Server()->PreserveIconDataL(); |
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128 ModifyUserCount( item, 1 ); |
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129 break; |
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130 } |
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131 |
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132 case EDestroyIconData: |
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133 { |
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134 const CAknIconDataItem* item = Server()->UnpreserveIconDataL(); |
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135 ModifyUserCount( item, -1 ); |
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136 break; |
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137 } |
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138 |
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139 case EGetInitData: |
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140 { |
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141 TAknIconInitData data; |
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142 Server()->GetInitData( data ); |
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143 TPckgC<TAknIconInitData> retPack( data ); |
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144 aMessage.WriteL( 0, retPack ); |
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145 break; |
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146 } |
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147 |
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148 case EAknIconServRequestEnableCache: |
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149 { |
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150 if (aMessage.HasCapability(ECapabilityWriteDeviceData)) |
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151 Server()->EnableCache( aMessage.Int0() ); |
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152 else |
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153 ret = KErrPermissionDenied; |
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154 break; |
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155 } |
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156 |
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157 // Debug heap testing. |
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158 #ifdef _DEBUG |
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159 case EServerHeapMark: |
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160 { |
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161 __UHEAP_MARK; |
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162 break; |
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163 } |
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164 |
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165 case EServerHeapMarkEnd: |
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166 { |
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167 __UHEAP_MARKEND; |
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168 break; |
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169 } |
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170 |
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171 case EServerHeapFailNext: |
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172 { |
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173 iDbgHeapFailNextCount = 0; |
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174 __UHEAP_FAILNEXT( aMessage.Int0() ); |
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175 break; |
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176 } |
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177 |
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178 case EServerHeapFailNextIncreasing: |
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179 { |
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180 iDbgHeapFailNextCount = aMessage.Int0(); |
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181 break; |
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182 } |
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183 |
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184 case EServerHeapReset: |
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185 { |
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186 iDbgHeapFailNextCount = 0; |
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187 __UHEAP_RESET; |
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188 break; |
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189 } |
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190 |
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191 case EServerResetDynamicallyChangingAllocations: |
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192 { |
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193 Server()->ResetDynamicallyChangingAllocations(); |
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194 break; |
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195 } |
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196 |
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197 case EServerHeapUsed: |
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198 { |
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199 TInt heapUsed; |
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200 User::AllocSize( heapUsed ); |
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201 ret = heapUsed; |
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202 break; |
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203 } |
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204 |
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205 case EServerSetPreferredIconDisplayMode: |
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206 { |
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207 Server()->SetPreferredIconDisplayMode( (TDisplayMode)aMessage.Int0() ); |
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208 break; |
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209 } |
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210 |
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211 #endif // _DEBUG |
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212 |
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213 default: |
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214 { |
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215 // PanicClient( aMessage, EBadServerRequest ); |
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216 // If we dont call Leave here, Server crashes.. |
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217 // Fixed it as a part of error fix JJUN-78QCL6 |
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218 User::Leave(KAknIconSrvCodePanicClient); |
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219 break; |
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220 } |
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221 } |
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222 |
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223 return ret; |
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224 } |
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225 |
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226 // ----------------------------------------------------------------------------- |
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227 // CAknIconSrvSession::ServiceL() |
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228 // ----------------------------------------------------------------------------- |
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229 |
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230 void CAknIconSrvSession::ServiceL(const RMessage2& aMessage) |
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231 { |
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232 TInt ret = KErrNone; |
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233 |
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234 TInt opCode = aMessage.Function(); |
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235 |
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236 // File handles are transfered to server side with these opCodes. |
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237 if ( opCode == ERetrieveOrCreateSharedIcon || |
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238 opCode == EGetContentDimensions || |
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239 opCode == EPreserveIconData ) |
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240 { |
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241 if ( aMessage.Int2() ) |
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242 { |
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243 User::LeaveIfError( |
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244 iAdoptedFile.AdoptFromClient( aMessage, 2, 3 ) ); |
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245 } |
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246 } |
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247 |
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248 TRAPD( err, |
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249 { |
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250 ret = DispatchMessageL( aMessage ); |
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251 } ); |
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252 |
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253 iAdoptedFile.Close(); |
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254 |
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255 #ifdef __AKNICON_TRACES |
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256 if (err != KErrNone) |
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257 { |
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258 RDebug::Print( _L("CAknIconSrvSession: %x DispatchMessageL leaved: %d"), this, err ); |
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259 } |
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260 #endif |
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261 |
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262 // Don't complete message if client panicked |
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263 if (err != KAknIconSrvCodePanicClient) |
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264 { |
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265 // If the service routine leaved, return the leave reason. |
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266 // Otherwise, return its return code. |
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267 |
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268 aMessage.Complete( err != KErrNone ? err : ret ); |
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269 } |
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270 else |
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271 { |
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272 if (aMessage.IsNull() == EFalse) |
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273 { |
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274 PanicClient( aMessage, iClientPanicCode ); |
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275 } |
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276 User::Leave(KAknIconSrvCodePanicClient); |
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277 } |
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278 } |
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279 |
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280 // ----------------------------------------------------------------------------- |
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281 // CAknIconSrvSession::PanicClient() |
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282 // ----------------------------------------------------------------------------- |
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283 |
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284 void CAknIconSrvSession::PanicClient( const RMessage2& aMessage, TAknIconPanic aPanic ) const |
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285 { |
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286 aMessage.Panic( KAknIconPanicCategory, aPanic ); |
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287 } |
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288 |
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289 // ----------------------------------------------------------------------------- |
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290 // CAknIconSrvSession::ModifyUserCount() |
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291 // ----------------------------------------------------------------------------- |
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292 // |
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293 void CAknIconSrvSession::ModifyUserCount( |
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294 const CAknIconSrvIconItem* aItem, |
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295 TInt aCount ) |
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296 { |
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297 TAknIconSrvSessionIconItem newItem = { aItem, aCount }; |
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298 TInt index = iIconItems.FindInOrder( |
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299 newItem, TAknIconSrvSessionIconItem::LinearOrder ); |
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300 |
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301 if ( index >= 0 ) |
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302 { |
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303 TAknIconSrvSessionIconItem& sessionItem = iIconItems[index]; |
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304 // session's user count for this icon |
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305 sessionItem.iUserCount += aCount; |
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306 |
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307 if ( sessionItem.iUserCount == 0 ) |
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308 { |
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309 iIconItems.Remove( index ); |
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310 } |
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311 return; |
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312 } |
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313 |
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314 // If not found, it must be a new item, |
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315 // and then the user count should be increasing. |
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316 __ASSERT_ALWAYS( aCount > 0, User::Invariant() ); |
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317 |
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318 // Cannot fail at this stage, see caller function. |
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319 iIconItems.InsertInOrder(newItem, TAknIconSrvSessionIconItem::LinearOrder ); |
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320 } |
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321 |
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322 // ----------------------------------------------------------------------------- |
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323 // CAknIconSrvSession::ModifyUserCount() |
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324 // ----------------------------------------------------------------------------- |
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325 // |
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326 void CAknIconSrvSession::ModifyUserCount( |
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327 const CAknIconDataItem* aItem, |
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328 TInt aCount ) |
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329 { |
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330 TInt count = iPreservedItems.Count(); |
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331 |
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332 for ( TInt i = 0 ; i < count ; i++ ) |
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333 { |
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334 TAknIconSrvSessionPreservedItem& sessionItem = iPreservedItems[i]; |
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335 if ( sessionItem.iDataItem == aItem ) |
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336 { |
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337 // session's user count for this icon |
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338 sessionItem.iUserCount += aCount; |
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339 |
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340 if ( sessionItem.iUserCount == 0 ) |
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341 { |
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342 iPreservedItems.Remove( i ); |
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343 } |
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344 return; |
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345 } |
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346 } |
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347 |
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348 // If not found, it must be a new item, |
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349 // and then the user count should be increasing. |
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350 __ASSERT_ALWAYS( aCount > 0, User::Invariant() ); |
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351 |
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352 TAknIconSrvSessionPreservedItem newItem = { aItem, aCount }; |
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353 // Cannot fail at this stage, see caller function. |
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354 iPreservedItems.Append( newItem ); |
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355 } |
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356 |
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357 // ----------------------------------------------------------------------------- |
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358 // CAknIconSrvSession::AdoptedFileHandle() |
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359 // ----------------------------------------------------------------------------- |
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360 // |
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361 RFile& CAknIconSrvSession::AdoptedFileHandle() |
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362 { |
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363 return iAdoptedFile; |
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364 } |
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365 |
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366 |
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367 // End of File |