author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:33:49 +0200 | |
changeset 2 | 086aae6fc07e |
parent 0 | 5a93021fdf25 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2008 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 "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: A package class for TConnMonId objects. |
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* |
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*/ |
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|
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#include <e32std.h> |
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#include <rconnmon.h> |
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|
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#include "log.h" |
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// ======== MEMBER FUNCTIONS ======== |
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// --------------------------------------------------------------------------- |
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// Construction |
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// data is packed to the following format |
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// |all_data_amount|amount_of_transferring_data_(n)|item0|....|item(n-1) |
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// each item is packed in following format |
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// |size_of_item|item's_data |
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// item's data can be unpacked by MDesSerializer::FromPtr(), implemented by an item's class |
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// --------------------------------------------------------------------------- |
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// |
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ConnMonIdsArrayPckg::ConnMonIdsArrayPckg( const RArray<TConnMonId>& aRef, TUint aBufLen ) |
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{ |
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LOGENTRFN("ConnMonIdsArrayPckg::ConnMonIdsArrayPckg()") |
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|
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const TUint KItemLengthFieldSize = 1; |
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|
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// First 2 elements in buffer will contain the total number of objects and the number of transfered objects |
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TUint currentPosition( 2 ); |
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TInt totalItemCount = aRef.Count(); |
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|
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LOGIT2("ConnMonIdsArrayPckg: buffer size %d, item count %d", aBufLen, totalItemCount) |
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|
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// Create a temporary pointer array table for buffer objects |
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RPointerArray<HBufC> items; |
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// Add items until all added or buffer full |
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for ( TUint i = 0; i < totalItemCount; ++i ) |
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{ |
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const HBufC* item( aRef[i].ToBuf() ); |
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if ( item ) |
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{ |
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// Check if there is room in buffer for the next item |
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if ( ( currentPosition + KItemLengthFieldSize + item->Length() ) > aBufLen ) |
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{ |
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LOGIT4("Buffer full, current position %d, item length %d, buffer size %d, i %d", |
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currentPosition, item->Length(), aBufLen, i) |
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delete item; |
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item = NULL; |
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break; |
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} |
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currentPosition += KItemLengthFieldSize + item->Length(); |
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items.Append( item ); |
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} |
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} |
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|
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// Check that given buffer length (aBufLen) is not smaller than one |
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// item (CConnMonWlanNetwork) + aRef count + items count + item length |
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if ( items.Count() == 0 && totalItemCount > 0 ) |
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{ |
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aBufLen = 2; // aRef.Count(), items.Count() |
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} |
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|
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// Allocate memory for buffer |
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iBuf = HBufC::New( aBufLen ); |
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if ( !iBuf ) |
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{ |
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LOGIT("ConnMonIdsArrayPckg: out of memory error") |
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} |
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else |
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{ |
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// Add total and transferred counts to buffer |
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iBuf->Des().Append( totalItemCount ); // Total amount of objects |
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iBuf->Des().Append( items.Count() ); // Amount of objects in buffer |
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|
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// Add item length and item data to buffer |
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for ( TUint i = 0; i < items.Count(); ++i ) |
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{ |
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iBuf->Des().Append( items[i]->Length() ); |
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iBuf->Des().Append( *items[i] ); |
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} |
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LOGIT1("Used buffer %d", iBuf->Length()) |
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} |
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items.ResetAndDestroy(); |
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|
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LOGEXITFN("ConnMonIdsArrayPckg::ConnMonIdsArrayPckg()") |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Construction |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C ConnMonIdsArrayPckg::ConnMonIdsArrayPckg( TUint aBufSize ) |
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{ |
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iBuf = HBufC::New( aBufSize ); |
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} |
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// --------------------------------------------------------------------------- |
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// Destruction |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C ConnMonIdsArrayPckg::~ConnMonIdsArrayPckg() |
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{ |
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delete iBuf; |
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} |
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// --------------------------------------------------------------------------- |
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// Unpacking |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C void ConnMonIdsArrayPckg::UnpackToL( RArray<TConnMonId>& aRef ) const |
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{ |
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if ( !iBuf || iBuf->Length() < 2 ) |
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{ |
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User::Leave( KErrBadDescriptor ); |
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} |
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|
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TUint index( 0 ); |
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TUint total( (*iBuf)[index++] ); // Amount of data totally to be transferred |
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TUint count( (*iBuf)[index++] ); // Amount of packed data |
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|
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for ( TUint i = 0; i < count; ++i ) |
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{ |
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TUint len( (*iBuf)[index++] ); |
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TPtrC ptr( iBuf->Mid( index, len ) ); |
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User::LeaveIfError( aRef.Append( TConnMonId::FromPtrC( ptr ) ) ); |
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index += len; |
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} |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Getter |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C HBufC* ConnMonIdsArrayPckg::Buf() const |
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{ |
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return iBuf; |
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} |
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|
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// End-of-file |