--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/radioutility/presetutility/src/cenrepbookkeeping.cpp Tue Aug 31 15:43:02 2010 +0300
@@ -0,0 +1,281 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+*
+*
+*/
+
+#include <s32mem.h> // RWriteStream, RReadStream
+
+#include "cenrepbookkeeping.h"
+#include "trace.h"
+
+
+const TUint8 KNbrOfBitsPerByte = 8;
+
+
+#define BITSPERLWORD ( sizeof(iBookKeepingData.iUsedIndexLWords[0]) * KNbrOfBitsPerByte)
+
+
+// ============= MEMBER FUNCTIONS ==============
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CCenrepBookKeeping::CCenrepBookKeeping()
+ {
+ FUNC_LOG;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CCenrepBookKeeping::~CCenrepBookKeeping()
+ {
+ FUNC_LOG;
+ Clear();
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCenrepBookKeeping::PresetCount() const
+ {
+ FUNC_LOG;
+ return iBookKeepingData.iCount;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCenrepBookKeeping::FirstIndex() const
+ {
+ FUNC_LOG;
+ TInt retIndex( KErrGeneral );
+ TUint32 bitMask( 0 );
+ for ( TInt lwordOffset = 0; ; ++lwordOffset)
+ {
+ if ( 0 !=iBookKeepingData.iUsedIndexLWords[lwordOffset] )
+ {
+ bitMask = 1;
+ for ( TUint8 bitOffset( 0 ); BITSPERLWORD > bitOffset; ++bitOffset )
+ {
+ if ( KMaxNumberOfPresetStations <= ( ( BITSPERLWORD * lwordOffset ) + bitOffset ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( 0 != ( iBookKeepingData.iUsedIndexLWords[lwordOffset] & bitMask) )
+ {
+ retIndex = ( BITSPERLWORD * lwordOffset ) + bitOffset;
+ break;
+ }
+ bitMask = bitMask << 1;
+ }
+ }
+ else if ( KMaxNumberOfPresetStations < ( BITSPERLWORD * (lwordOffset + 1) ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( KErrGeneral != retIndex )
+ {
+ break;
+ }
+ }
+ INFO_1( "retIndex: %i", retIndex );
+ return retIndex;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCenrepBookKeeping::NextIndex( TInt aFromIndex )
+ {
+ FUNC_LOG;
+ TInt retIndex( KErrGeneral );
+ TInt startIndex( aFromIndex + 1 );
+ TUint32 bitMask( 0 );
+ TUint8 bitOffset( 0 );
+ for ( TInt lwordOffset(startIndex/BITSPERLWORD); ; ++lwordOffset)
+ {
+ if ( lwordOffset == (startIndex/BITSPERLWORD) )
+ {
+ bitMask = 1 << (startIndex%BITSPERLWORD);
+ bitOffset = (startIndex%BITSPERLWORD);
+ }
+ else
+ {
+ bitMask = 1;
+ bitOffset = 0;
+ }
+ if ( 0 !=iBookKeepingData.iUsedIndexLWords[lwordOffset] )
+ {
+ for ( ; BITSPERLWORD > bitOffset; ++bitOffset )
+ {
+ if ( KMaxNumberOfPresetStations <= ( ( BITSPERLWORD * lwordOffset ) + bitOffset ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( 0 != ( iBookKeepingData.iUsedIndexLWords[lwordOffset] & bitMask) )
+ {
+ retIndex = ( BITSPERLWORD * lwordOffset ) + bitOffset;
+ break;
+ }
+ bitMask = bitMask << 1;
+ }
+ }
+ else if ( KMaxNumberOfPresetStations < ( BITSPERLWORD * (lwordOffset + 1) ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( KErrGeneral != retIndex )
+ {
+ break;
+ }
+ }
+ INFO_1( "retIndex: %i", retIndex );
+ return retIndex;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CCenrepBookKeeping::AddIndex( const TInt aIndex )
+ {
+ FUNC_LOG;
+ if (
+ ( KMaxNumberOfPresetStations >iBookKeepingData.iCount ) &&
+ ( !IsIndexUsed( aIndex ) )
+ )
+ {
+ TInt lwordOffset(aIndex/BITSPERLWORD);
+ TUint bitOffset( (aIndex%BITSPERLWORD) );
+ TUint32 bitMask( 1 );
+ bitMask = bitMask << bitOffset;
+ iBookKeepingData.iUsedIndexLWords[lwordOffset] |= bitMask;
+ ++iBookKeepingData.iCount;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CCenrepBookKeeping::RemoveIndex( const TInt aIndex )
+ {
+ FUNC_LOG;
+ if (
+ ( 0 <iBookKeepingData.iCount ) &&
+ ( IsIndexUsed( aIndex ) )
+ )
+ {
+ TInt lwordOffset(aIndex/BITSPERLWORD);
+ TUint bitOffset( (aIndex%BITSPERLWORD) );
+ TUint32 bitMask( 1 );
+ bitMask = bitMask << bitOffset;
+ bitMask = ~bitMask;
+ iBookKeepingData.iUsedIndexLWords[lwordOffset] &= bitMask;
+ --iBookKeepingData.iCount;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CCenrepBookKeeping::Clear()
+ {
+ FUNC_LOG;
+ for ( TInt lwordOffset(0); LENGTHOFUSEDINDEXLWORDSARRAY > lwordOffset; ++lwordOffset)
+ {
+ iBookKeepingData.iUsedIndexLWords[lwordOffset] = 0;
+ }
+ iBookKeepingData.iCount = 0;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCenrepBookKeeping::FindUnusedIndex() const
+ {
+ FUNC_LOG;
+ TInt retIndex( KErrGeneral );
+ TUint32 bitMask( 0 );
+ for ( TInt lwordOffset = 0; ; ++lwordOffset)
+ {
+ if ( 0xFFFFFFFF !=iBookKeepingData.iUsedIndexLWords[lwordOffset] )
+ {
+ bitMask = 1;
+ for ( TUint8 bitOffset = 0; BITSPERLWORD > bitOffset; ++bitOffset )
+ {
+ if ( KMaxNumberOfPresetStations <= ( ( BITSPERLWORD * lwordOffset ) + bitOffset ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( 0 == ( iBookKeepingData.iUsedIndexLWords[lwordOffset] & bitMask) )
+ {
+ retIndex = ( BITSPERLWORD * lwordOffset ) + bitOffset;
+ break;
+ }
+ bitMask = bitMask << 1;
+ }
+ }
+ else if ( KMaxNumberOfPresetStations < ( BITSPERLWORD * (lwordOffset + 1) ) )
+ {
+ retIndex = KErrNotFound;
+ break;
+ }
+ if ( KErrGeneral != retIndex )
+ {
+ break;
+ }
+ }
+ INFO_1( "retIndex: %i", retIndex );
+ return retIndex;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TBool CCenrepBookKeeping::IsIndexUsed( const TInt aIndex )
+ {
+ FUNC_LOG;
+ TInt lwordOffset(aIndex/BITSPERLWORD);
+ TUint bitOffset( (aIndex%BITSPERLWORD) );
+ TUint32 bitMask( 1 );
+ bitMask = bitMask << bitOffset;
+ return ( iBookKeepingData.iUsedIndexLWords[lwordOffset] & bitMask);
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TPtr8 CCenrepBookKeeping::BookKeepingData()
+ {
+ TPtr8 bookKeepingData( (TUint8*)&iBookKeepingData, sizeof( iBookKeepingData ), sizeof( iBookKeepingData ) );
+ return bookKeepingData;
+ }