| author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
| Fri, 08 May 2009 08:25:06 +0300 | |
| changeset 8 | 7c90e6132015 |
| parent 0 | dd21522fd290 |
| child 16 | a359256acfc6 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Implementation of CHttpCacheEntry |
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* |
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*/ |
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// INCLUDE FILES |
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#include "HttpCacheEntry.h" |
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#include "HttpCacheEvictionHandler.h" |
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#include "HttpCacheStreamHandler.h" |
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#include "HttpCacheUtil.h" |
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#include <s32file.h> |
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// EXTERNAL DATA STRUCTURES |
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// EXTERNAL FUNCTION PROTOTYPES |
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// CONSTANTS |
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const TInt CHttpCacheEntry::iOffset = _FOFF( CHttpCacheEntry, iSqlQueLink ); |
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// MACROS |
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// LOCAL CONSTANTS AND MACROS |
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// MODULE DATA STRUCTURES |
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// LOCAL FUNCTION PROTOTYPES |
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// FORWARD DECLARATIONS |
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// ============================= LOCAL FUNCTIONS =============================== |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::CHttpCacheEntry |
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// C++ default constructor can NOT contain any code, that |
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// might leave. |
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// ----------------------------------------------------------------------------- |
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// |
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CHttpCacheEntry::CHttpCacheEntry( CHttpCacheEvictionHandler& aEvictionHandler ) |
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: iState( ECacheUninitialized ), |
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iEvictionHandler( &aEvictionHandler ) |
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{
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::ConstructL |
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// Symbian 2nd phase constructor can leave. |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::ConstructL( const TDesC8& aUrl ) |
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{
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iUrl = aUrl.AllocL(); |
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iFileName = KNullDesC().AllocL(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::NewL |
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// Two-phased constructor. |
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// ----------------------------------------------------------------------------- |
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// |
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CHttpCacheEntry* CHttpCacheEntry::NewL( |
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const TDesC8& aUrl, |
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CHttpCacheEvictionHandler& aEvictionHandler ) |
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{
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CHttpCacheEntry* self = new( ELeave ) CHttpCacheEntry( aEvictionHandler ); |
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CleanupStack::PushL( self ); |
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self->ConstructL( aUrl ); |
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CleanupStack::Pop(); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::NewLC |
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// Two-phased constructor. |
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// ----------------------------------------------------------------------------- |
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// |
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CHttpCacheEntry* CHttpCacheEntry::NewLC( |
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const TDesC8& aUrl, |
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CHttpCacheEvictionHandler& aEvictionHandler ) |
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{
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CHttpCacheEntry* self = CHttpCacheEntry::NewL( aUrl, aEvictionHandler ); |
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CleanupStack::PushL( self ); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// Destructor |
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// ----------------------------------------------------------------------------- |
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// |
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CHttpCacheEntry::~CHttpCacheEntry() |
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{
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// Clean up eviction handler |
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if ( iEvictionCandidate && iEvictionHandler ) |
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{
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iEvictionHandler->Remove( *this ); |
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} |
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112 |
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// Close files, this will commit changes |
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if ( iCacheFilesOpened ) |
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{
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iHeaderFile.Close(); |
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iBodyFile.Close(); |
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} |
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119 |
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// Clean up our memory |
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delete iUrl; |
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delete iFileName; |
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delete iCacheBuffer; |
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} |
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125 |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetState |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetState( TCacheEntryState aState ) |
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{
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// Add entry to the eviction table once it gets completed |
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if ( aState == ECacheComplete && !iEvictionCandidate ) |
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{
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// don't add it twice |
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iEvictionHandler->Insert( *this ); |
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iEvictionCandidate = ETrue; |
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} |
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140 |
|
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iState = aState; |
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} |
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143 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetFileNameL |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetFileNameL( const TFileName& aFileName ) |
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{
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delete iFileName; |
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iFileName = NULL; |
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153 |
|
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iFileName = aFileName.AllocL(); |
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} |
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156 |
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157 |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::Accessed |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::Accessed() |
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{
|
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TTime now; |
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now.HomeTime(); |
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iLastAccessed = now.Int64(); |
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168 |
|
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iRef++; |
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170 |
|
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if ( iEvictionCandidate ) |
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{
|
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iEvictionHandler->Accessed( *this ); |
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} |
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175 |
|
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#ifdef __CACHELOG__ |
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_LIT( KAccessFormat, "entry accessed: %d" ); |
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TBuf<100> buf; |
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buf.Format( KAccessFormat, iRef ); |
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HttpCacheUtil::WriteUrlToLog( 0, buf, iUrl->Des() ); |
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#endif // __CACHELOG__ |
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182 |
|
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} |
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184 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetBodySize |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetBodySize( TUint aBodySize ) |
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{
|
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if ( iBodySize && !aBodySize ) |
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{
|
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// Remove from the eviction table, this is no longer a candidate |
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if ( iEvictionCandidate ) |
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{
|
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iEvictionHandler->Remove( *this ); |
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iEvictionCandidate = EFalse; |
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} |
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} |
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iBodySize = aBodySize; |
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} |
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203 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetProtected |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetProtected() |
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{
|
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iProtected = ETrue; |
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iRef = 50; |
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#ifdef __CACHELOG__ |
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HttpCacheUtil::WriteLog( 0, _L( "CHttpCacheEntry::SetProtected - protected item" ) ); |
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#endif |
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} |
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218 |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::Internalize |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CHttpCacheEntry::Internalize( RFileReadStream& aReadStream ) |
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{
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// url length |
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TRAPD( err, |
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TInt len; |
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229 |
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// url length |
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len = aReadStream.ReadInt32L(); |
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delete iUrl; |
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iUrl=NULL; |
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iUrl = HBufC8::NewL( len ); |
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TPtr8 ptr8( iUrl->Des() ); |
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// url |
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aReadStream.ReadL( ptr8, len ); |
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238 |
|
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// filename length |
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len = aReadStream.ReadInt32L(); |
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HBufC* filename = HBufC::NewLC( len ); |
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TPtr ptr( filename->Des() ); |
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// url |
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aReadStream.ReadL( ptr, len ); |
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// |
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SetFileNameL( filename->Des() ); |
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// |
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CleanupStack::PopAndDestroy(); // filename |
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// la |
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TReal64 la; |
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la = aReadStream.ReadReal64L(); |
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iLastAccessed = la; |
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// ref |
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iRef = aReadStream.ReadUint32L(); |
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// size |
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iBodySize = aReadStream.ReadUint32L( ); |
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// size |
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iHeaderSize = aReadStream.ReadUint32L( ); |
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// protected |
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iProtected = aReadStream.ReadInt32L(); |
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// |
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SetState( ECacheComplete ); |
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); // end of TRAPD |
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264 |
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return err; |
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} |
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267 |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::Externalize |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CHttpCacheEntry::Externalize( RFileWriteStream& aWriteStream ) |
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{
|
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TRAPD( err, |
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// url length |
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aWriteStream.WriteInt32L( iUrl->Length() ); |
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// url |
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aWriteStream.WriteL( iUrl->Des() ); |
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// filename length |
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aWriteStream.WriteInt32L( iFileName->Length() ); |
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// filename |
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aWriteStream.WriteL( iFileName->Des() ); |
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// la |
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aWriteStream.WriteReal64L( iLastAccessed ); |
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// ref |
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aWriteStream.WriteUint32L( iRef ); |
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// size |
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aWriteStream.WriteUint32L( iBodySize ); |
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// size |
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aWriteStream.WriteUint32L( iHeaderSize ); |
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// protected |
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aWriteStream.WriteInt32L( iProtected ); |
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); // end of TRAPD |
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295 |
|
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return err; |
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} |
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298 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::Accessed |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::Accessed( TInt64 aLastAccessed, TUint16 aRef ) |
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{
|
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iLastAccessed = aLastAccessed; |
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iRef = aRef; |
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if ( iEvictionCandidate ) |
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{
|
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iEvictionHandler->Accessed( *this ); |
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} |
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312 |
|
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#ifdef __CACHELOG__ |
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_LIT( KAccessFormat, "entry accessed: %d" ); |
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TBuf<100> buf; |
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buf.Format( KAccessFormat, iRef ); |
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HttpCacheUtil::WriteUrlToLog( 0, buf, iUrl->Des() ); |
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#endif // __CACHELOG__ |
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetCacheFilesOpened |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetCacheFilesOpened( TBool aCacheFilesOpened ) |
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{
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// Set our files open flag |
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iCacheFilesOpened = aCacheFilesOpened; |
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::CacheBuffer |
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// NOTE: Cache buffer is created on: |
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// 1. Normal content entrypoint into CacheManager |
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// CacheManager::ReceivedResponseHeadersL -> CacheHandler::ReceivedResponseHeadersL -> |
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// CacheHandler::HandleResponseOkL (calls method - SetCacheBuffer, needed to |
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// accumulate body content on multiple CacheHandler::ReceivedBodyDataL calls) |
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// 2. Multipart content entrypoint into CacheManager |
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// CacheManager::SaveL -> CacheHandler::SaveL -> CacheHandler::SaveBuffer -> |
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// CacheStreamHandler::SaveBodyData (calls this method - CacheBuffer, needed |
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// because cacheBuffer=null and single call made, no accumulation of body data) |
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// ----------------------------------------------------------------------------- |
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// |
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TPtr8 CHttpCacheEntry::CacheBuffer() |
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{
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if ( iCacheBuffer == NULL ) |
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{
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// Create the cache buffer, if needed |
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iCacheBuffer = HBufC8::New( KBufferSize32k ); |
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if ( iCacheBuffer == NULL ) |
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{
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// OOM, return empty cache buffer |
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TPtr8 emptyCacheBuffer( NULL, 0, 0 ); |
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return emptyCacheBuffer; |
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} |
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} |
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return iCacheBuffer->Des(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CHttpCacheEntry::SetCacheBufferL |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpCacheEntry::SetCacheBufferL( TInt aCacheBufferSize ) |
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{
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if ( aCacheBufferSize > 0 && iCacheBuffer == NULL ) |
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{
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iCacheBuffer = HBufC8::NewL( aCacheBufferSize ); |
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} |
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else if ( aCacheBufferSize <= 0 ) |
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{
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delete iCacheBuffer; |
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iCacheBuffer = NULL; |
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} |
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} |
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// End of File |