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1 /* |
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2 * Copyright (c) 2006 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 the License "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: Implementation of CHttpCacheEntry |
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15 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 #include "HttpCacheEntry.h" |
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20 #include "HttpCacheEvictionHandler.h" |
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21 #include "HttpCacheStreamHandler.h" |
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22 #include "HttpCacheUtil.h" |
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23 #include <s32file.h> |
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24 |
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25 // EXTERNAL DATA STRUCTURES |
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26 |
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27 // EXTERNAL FUNCTION PROTOTYPES |
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28 |
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29 // CONSTANTS |
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30 const TInt CHttpCacheEntry::iOffset = _FOFF( CHttpCacheEntry, iSlink ); |
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31 |
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32 // MACROS |
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33 |
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34 // LOCAL CONSTANTS AND MACROS |
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35 |
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36 // MODULE DATA STRUCTURES |
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37 |
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38 // LOCAL FUNCTION PROTOTYPES |
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39 |
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40 // FORWARD DECLARATIONS |
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41 |
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42 // ============================= LOCAL FUNCTIONS =============================== |
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43 |
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44 // ============================ MEMBER FUNCTIONS =============================== |
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45 |
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46 // ----------------------------------------------------------------------------- |
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47 // CHttpCacheEntry::CHttpCacheEntry |
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48 // C++ default constructor can NOT contain any code, that |
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49 // might leave. |
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50 // ----------------------------------------------------------------------------- |
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51 // |
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52 CHttpCacheEntry::CHttpCacheEntry( |
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53 CHttpCacheEvictionHandler& aEvictionHandler ) |
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54 : iState( ECacheUninitialized ), |
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55 iEvictionHandler( &aEvictionHandler ) |
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56 { |
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57 } |
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58 |
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59 // ----------------------------------------------------------------------------- |
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60 // CHttpCacheEntry::ConstructL |
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61 // Symbian 2nd phase constructor can leave. |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 void CHttpCacheEntry::ConstructL( |
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65 const TDesC8& aUrl ) |
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66 { |
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67 iUrl = aUrl.AllocL(); |
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68 iFileName = KNullDesC().AllocL(); |
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69 } |
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70 |
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71 // ----------------------------------------------------------------------------- |
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72 // CHttpCacheEntry::NewL |
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73 // Two-phased constructor. |
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74 // ----------------------------------------------------------------------------- |
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75 // |
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76 CHttpCacheEntry* CHttpCacheEntry::NewL( |
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77 const TDesC8& aUrl, |
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78 CHttpCacheEvictionHandler& aEvictionHandler ) |
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79 { |
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80 CHttpCacheEntry* self = new( ELeave ) CHttpCacheEntry( aEvictionHandler ); |
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81 |
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82 CleanupStack::PushL( self ); |
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83 self->ConstructL( aUrl ); |
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84 CleanupStack::Pop(); |
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85 |
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86 return self; |
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87 } |
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88 |
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89 // ----------------------------------------------------------------------------- |
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90 // CHttpCacheEntry::NewLC |
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91 // Two-phased constructor. |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 CHttpCacheEntry* CHttpCacheEntry::NewLC( |
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95 const TDesC8& aUrl, |
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96 CHttpCacheEvictionHandler& aEvictionHandler ) |
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97 { |
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98 CHttpCacheEntry* self = CHttpCacheEntry::NewL( aUrl, aEvictionHandler ); |
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99 CleanupStack::PushL( self ); |
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100 return self; |
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101 } |
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102 |
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103 // Destructor |
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104 CHttpCacheEntry::~CHttpCacheEntry() |
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105 { |
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106 if( iVictim && iEvictionHandler) |
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107 { |
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108 iEvictionHandler->Remove( *this ); |
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109 } |
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110 delete iUrl; |
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111 delete iFileName; |
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112 } |
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113 |
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114 // ----------------------------------------------------------------------------- |
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115 // CHttpCacheEntry::SetState |
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116 // |
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117 // ----------------------------------------------------------------------------- |
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118 // |
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119 void CHttpCacheEntry::SetState( |
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120 TCacheEntryState aState ) |
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121 { |
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122 // add entry to the eviction table once it gets completed |
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123 if( aState == ECacheComplete && !iVictim ) |
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124 { |
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125 // don't add it twice |
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126 iEvictionHandler->Insert( *this ); |
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127 iVictim = ETrue; |
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128 } |
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129 iState = aState; |
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130 } |
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131 |
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132 |
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133 // ----------------------------------------------------------------------------- |
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134 // CHttpCacheEntry::SetFileNameL |
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135 // |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CHttpCacheEntry::SetFileNameL( |
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139 const TFileName& aFileName ) |
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140 { |
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141 delete iFileName; |
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142 iFileName = NULL; |
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143 iFileName = aFileName.AllocL(); |
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144 } |
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145 |
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146 |
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147 // ----------------------------------------------------------------------------- |
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148 // CHttpCacheEntry::Accessed |
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149 // |
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150 // ----------------------------------------------------------------------------- |
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151 // |
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152 void CHttpCacheEntry::Accessed() |
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153 { |
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154 TTime now; |
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155 now.HomeTime(); |
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156 |
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157 iLastAccessed = now.Int64(); |
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158 |
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159 iRef++; |
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160 if( iVictim ) |
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161 { |
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162 iEvictionHandler->Accessed( *this ); |
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163 } |
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164 #ifdef __CACHELOG__ |
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165 _LIT( KAccessFormat, "entry accessed: %d" ); |
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166 TBuf<100> buf; |
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167 buf.Format( KAccessFormat, iRef ); |
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168 HttpCacheUtil::WriteUrlToLog( 0, buf, iUrl->Des() ); |
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169 #endif // __CACHELOG__ |
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170 } |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // CHttpCacheEntry::SetSize |
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174 // |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 void CHttpCacheEntry::SetSize( |
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178 TUint aSize ) |
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179 { |
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180 if( iSize && !aSize ) |
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181 { |
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182 // body removal |
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183 // remove itself from the eviction table. |
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184 // this is no longer a victim |
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185 if( iVictim ) |
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186 { |
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187 iEvictionHandler->Remove( *this ); |
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188 iVictim = EFalse; |
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189 } |
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190 } |
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191 iSize = aSize; |
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192 } |
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193 |
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194 // ----------------------------------------------------------------------------- |
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195 // CHttpCacheEntry::SetProtected |
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196 // |
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197 // ----------------------------------------------------------------------------- |
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198 // |
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199 void CHttpCacheEntry::SetProtected() |
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200 { |
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201 iProtected = ETrue; |
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202 // iRef |
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203 iRef = 50; |
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204 HttpCacheUtil::WriteLog( 0, _L( "protected item" ) ); |
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205 } |
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206 |
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207 // ----------------------------------------------------------------------------- |
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208 // CHttpCacheEntry::Internalize |
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209 // |
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210 // ----------------------------------------------------------------------------- |
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211 // |
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212 TInt CHttpCacheEntry::Internalize( |
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213 RFileReadStream& aReadStream ) |
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214 { |
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215 TRAPD( err, |
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216 TInt len; |
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217 |
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218 // url length |
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219 len = aReadStream.ReadInt32L(); |
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220 delete iUrl; |
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221 iUrl=NULL; |
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222 iUrl = HBufC8::NewL( len ); |
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223 TPtr8 ptr8( iUrl->Des() ); |
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224 // url |
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225 aReadStream.ReadL( ptr8, len ); |
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226 |
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227 // filename length |
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228 len = aReadStream.ReadInt32L(); |
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229 HBufC* filename = HBufC::NewLC( len ); |
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230 TPtr ptr( filename->Des() ); |
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231 // url |
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232 aReadStream.ReadL( ptr, len ); |
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233 // |
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234 SetFileNameL( filename->Des() ); |
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235 // |
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236 CleanupStack::PopAndDestroy(); // filename |
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237 // la |
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238 TReal64 la; |
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239 la = aReadStream.ReadReal64L(); |
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240 iLastAccessed = la; |
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241 // ref |
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242 iRef = aReadStream.ReadUint32L(); |
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243 // size |
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244 iSize = aReadStream.ReadUint32L( ); |
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245 // size |
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246 iHeaderSize = aReadStream.ReadUint32L( ); |
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247 // protected |
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248 iProtected = aReadStream.ReadInt32L(); |
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249 // |
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250 SetState( ECacheComplete ); ); |
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251 return err; |
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252 } |
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253 |
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254 // ----------------------------------------------------------------------------- |
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255 // CHttpCacheEntry::Externalize |
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256 // |
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257 // ----------------------------------------------------------------------------- |
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258 // |
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259 TInt CHttpCacheEntry::Externalize( |
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260 RFileWriteStream& aWriteStream ) |
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261 { |
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262 TRAPD( err, |
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263 // url length |
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264 aWriteStream.WriteInt32L( iUrl->Length() ); |
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265 // url |
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266 aWriteStream.WriteL( iUrl->Des() ); |
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267 // filename length |
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268 aWriteStream.WriteInt32L( iFileName->Length() ); |
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269 // filename |
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270 aWriteStream.WriteL( iFileName->Des() ); |
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271 // la |
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272 aWriteStream.WriteReal64L( iLastAccessed ); |
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273 // ref |
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274 aWriteStream.WriteUint32L( iRef ); |
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275 // size |
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276 aWriteStream.WriteUint32L( iSize ); |
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277 // size |
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278 aWriteStream.WriteUint32L( iHeaderSize ); |
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279 // protected |
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280 aWriteStream.WriteInt32L( iProtected ); ); |
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281 return err; |
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282 } |
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283 |
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284 // ----------------------------------------------------------------------------- |
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285 // CHttpCacheEntry::Accessed |
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286 // |
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287 // ----------------------------------------------------------------------------- |
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288 // |
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289 void CHttpCacheEntry::Accessed(TInt64 aLastAccessed, TUint16 aRef) |
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290 { |
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291 iLastAccessed = aLastAccessed; |
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292 iRef = aRef; |
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293 if( iVictim ) |
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294 { |
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295 iEvictionHandler->Accessed( *this ); |
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296 } |
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297 #ifdef __CACHELOG__ |
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298 _LIT( KAccessFormat, "entry accessed: %d" ); |
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299 TBuf<100> buf; |
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300 buf.Format( KAccessFormat, iRef ); |
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301 HttpCacheUtil::WriteUrlToLog( 0, buf, iUrl->Des() ); |
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302 #endif // __CACHELOG__ |
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303 |
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304 } |
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305 |
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306 // End of File |