--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/browserutilities/downloadmgr/DownloadMgrServEng/Inc/BuffStorage.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Implements storage functionality in the DownloadManager
+*
+*/
+
+
+
+#ifndef BUFFSTORAGE_H
+#define BUFFSTORAGE_H
+
+// INCLUDES
+#include <e32base.h>
+
+
+// FORWARD DECLARATIONS
+class CHttpDownload;
+class CHttpStorage;
+class RFotaEngineSession;
+class RWriteStream;
+class CDocumentHandler;
+class CBuffStorage;
+
+// CLASS DECLARATION
+
+/**
+* ?one_line_short_description.
+* ?other_description_lines
+*
+* @lib ?library
+* @since Series 60 v2.8
+*/
+
+
+NONSHARABLE_CLASS( CBuffStorage ) : public CActive
+ {
+ public: // Constructors and destructor
+
+
+ /**
+ * Two-phased constructor.
+ */
+ static CBuffStorage* NewL( CHttpStorage* aStorage );
+
+ /**
+ * Destructor.
+ */
+ ~CBuffStorage();
+
+ public: // Interface
+
+ /**
+ * Delets the storage buffers.
+ * @param
+ * @return
+ */
+ void ResetBuffers();
+
+ /**
+ * Persist received chunk
+ * @since Series 60 v2.8
+ * @param aBuf new chunk to be added
+ * @return EFalse if content-length had to be updated.
+ */
+ TBool WriteOutNextBodyDataL( const TDesC8& aBuf );
+
+ /**
+ * If buffering enabled, flush data to disk
+ */
+ void FlushBuffersL();
+
+ /**
+ * Returns buffer size
+ * @since Series 60 v2.8
+ * @param
+ * @return Buffer size.
+ */
+ const TInt& CurrentBufferSize() { return iBufferSize; }
+
+ /**
+ * Clear the error encountered during writing to file
+ * @since Series 60 v2.8
+ * @param
+ * @return Buffer size.
+ */
+ void ClearErrors() { iLastWriteErrorCode = KErrNone; }
+
+
+ protected: // Functions from base classes
+
+
+ private: // From CActive
+
+ /**
+ * Cancels the timer.
+ * @param
+ * @return
+ */
+ void DoCancel();
+
+ /**
+ * Handles an active object’s request completion event.
+ * @param
+ * @return
+ */
+ void RunL();
+
+ /**
+ * Persist received chunk
+ * @since Series 60 v2.8
+ * @param aBuf new chunk to be added
+ * @return EFalse if content-length had to be updated.
+ */
+ void DoBufferingWriteL(const TDesC8& aBuf);
+ void DoNonbufferingWriteL(const TDesC8& aBuf);
+
+ private:
+ /**
+ * C++ default constructor.
+ */
+ CBuffStorage(CHttpStorage*);
+
+ /**
+ * By default Symbian 2nd phase constructor is private.
+ */
+ void ConstructL();
+
+ public: // Data
+
+ friend class CBuffStorage;
+
+
+ protected: // Data
+
+
+ private:
+
+ // Double-buffering
+ HBufC8* iBuff1, *iBuff2;
+ HBufC8* iClientBuffer;
+ TPtr8 *iWritePtr;
+ TInt iBufferSize;
+
+ // For stalling condition handling
+ TInt iLastWriteErrorCode;
+ CActiveSchedulerWait iWait;
+
+ // References to CHttpStorage data
+ RFile*& iFile;
+ TInt32& iDownloadedSize; // How much data actually written to finally
+ TInt32& iBufferedSize; // How much data received over the air (but not necessarily all in file yet)
+
+ TInt& iHttpStorageBufferSize;
+ TInt32& iHttpStorageLength;
+ TBool& iBufferingEnabled;
+ TBool& iProgressiveDownload;
+
+#ifdef __SYNCML_DM_FOTA
+ RWriteStream*& iFotaStream;
+#endif // __SYNCML_DM_FOTA
+
+ };
+
+
+
+
+#endif // BUFFSTORAGE_H
+
+// End of File