C++ TDesC::Size方法代码示例

/*sets a specific contact field to a value as determined by its type.
field at aPos in aFields is set to aText*/
void CPerformanceFunctionalityBase::SetFieldL(const TInt aPos, const TDesC& aText)
	{
	CContactItemField &field = (*iFields)[aPos];
	if( field.IsTemplateLabelField() )
		{
		return;
		}

	if( 0 == aText.Size() )
		{
		return;
		}

	switch(field.StorageType())
		{
		case KStorageTypeText:
			field.TextStorage()->SetTextL(aText);
		break;
		case KStorageTypeStore:
			{
			HBufC8 *buf = HBufC8::NewLC(aText.Size());
			TPtr8 tptr8 = buf->Des();
			tptr8.Copy(aText);
			field.StoreStorage()->SetThingL(*buf);
			CleanupStack::PopAndDestroy(buf);
			}
		break;
		case KStorageTypeContactItemId:
			{
			TInt id = 0;
			if( aText.Size() > 0 )
				{
				GetIntFromConfig( KOtherFields, KAgentId, id );
				}
			field.AgentStorage()->SetAgentId(id);
			}
		break;
		case KStorageTypeDateTime:
			{
			if( aText.Size() > 0 )
				{
				TPtrC time;
				GetStringFromConfig( KOtherFields, KFieldTime, time );
				field.DateTimeStorage()->SetTime( TTime(time) );
				}
			else
				{
				field.DateTimeStorage()->SetTime( TTime(0) );
				}
			}
		break;
		default:
			User::Panic(aText,EInvariantFalse);
		break;
		}
	}

/*checks the value of a specific field as determined by it type
returns true if field at aPos in aFields equals aText*/
TBool CPerformanceFunctionalityBase::CompareFieldL(const TInt aPos, const TDesC& aText)
	{
	TBool ret = EFalse;
	const CContactItemField &field = (*iFields)[aPos];

	if(  field.IsTemplateLabelField() )
		{
		return ret;
		}

	if( 0 == aText.Size() && !field.Storage()->IsFull() )
		{
		return ETrue;
		}
	else if( !field.Storage()->IsFull() )
		{
		return EFalse;
		}

	switch( field.StorageType() )
		{
		case KStorageTypeText:
			ret = field.TextStorage()->Text() == aText;
		break;
		case KStorageTypeStore:
			{
			HBufC8 *buf = HBufC8::NewLC(aText.Size());
			TPtr8 tptr8 = buf->Des();
			tptr8.Copy(aText);
			ret = field.StoreStorage()->Thing()->Compare(*buf) == 0;
			CleanupStack::PopAndDestroy(buf);
			}
		break;
		case KStorageTypeContactItemId:
			{
			TInt id = 0;
			GetIntFromConfig( KOtherFields, KAgentId, id );
			ret = field.AgentStorage()->Value() == id;
			}
		break;
		case KStorageTypeDateTime:
			{
			TPtrC time;
			GetStringFromConfig( KOtherFields, KFieldTime, time );
			ret = field.DateTimeStorage()->Time() == TTime(time);
			}
		break;
		default:
			User::Panic(aText,EInvariantFalse);
		break;
		}
	return ret;

	}

/*sets a specific contact field to a value as determined by its type.
field at aPos in aFields is set to aText*/
void CContactsRamTest::SetFieldL(const CContactItemField &aField, const TDesC& aText)
	{
	if( aField.IsTemplateLabelField() )
		{
		return;
		}
		
	if( 0 == aText.Size() )
		{
		return;
		}
	
	switch(aField.StorageType())
		{
		case KStorageTypeText:
			aField.TextStorage()->SetTextL(aText);
		break;
		case KStorageTypeStore:
			{
			HBufC8 *buf = HBufC8::NewLC(aText.Size());
			TPtr8 tptr8 = buf->Des();
			tptr8.Copy(aText);
			aField.StoreStorage()->SetThingL(*buf);
			CleanupStack::PopAndDestroy(buf);
			}
		break;
		case KStorageTypeContactItemId:
			{
			aField.AgentStorage()->SetAgentId( KAgentId );
			}
		break;
		case KStorageTypeDateTime:
			{
			if( aText.Size() > 0 ) 
				{
				aField.DateTimeStorage()->SetTime( TTime(KTime) );
				}
			else
				{
				aField.DateTimeStorage()->SetTime( TTime(0) );
				}
			}
		break;
		default:
			User::Panic(aText,EInvariantFalse);
		break;
		}
	}

void TDesWrite::WriteL(const TDesC& aDes)
	{
	WriteL(aDes.Length());
	if (iDes.Size() & 1) iDes.AppendL('.'); // Pad so the desc is 2-byte aligned
	TPtrC8 ptr((TUint8*)aDes.Ptr(), aDes.Size());
	iDes.AppendL(ptr);
	}

// -----------------------------------------------------------------------------
// CPKIDialog::?member_function
// ?implementation_description
// (other items were commented in a header).
// -----------------------------------------------------------------------------
//    
void CPKIDialog::UserAuthenticationText( 
    const TDesC& aTextToSign,
    const RArray<TCTTokenObjectHandle>& aCertHandleList, 
    TCTTokenObjectHandle& aCertHandle,
    TRequestStatus& aStatus )
    {
    iCurrentOperation = EUserAuthenticationText;
	InitClientStatus( aStatus );

	TInt textSize = aTextToSign.Size();
	TSignInput signInput;
	signInput.iOperation = EUserAuthenticationText;
	signInput.iVariableDataSize = textSize;
	signInput.iCertHandleArrayTotal = aCertHandleList.Count();
	TPckgC<TSignInput> signInputBufPtr( signInput );
	// iSignInputBuf is persistent because further input processing occurs in the AO before
	// calling the notifier.
	iSignInputBuf.Copy( signInputBufPtr );
	const TUint8* textToSignPtr = reinterpret_cast<const TUint8*>( aTextToSign.Ptr() );
	iVariableDataPtr.Set( textToSignPtr, textSize );

	iClientCertInfoHandlePtr = &aCertHandle;

	iRequester->RequestVariableBufferDialog( iSignInputBuf, iVariableDataPtr,
											aCertHandleList, iCertInfoHandleBuf );
    }

// ---------------------------------------------------------
// TCodParser::ParseL()
// ---------------------------------------------------------
//
void TCodParser::ParseL( const TDesC& aBuf, CCodData& aData )
    {
    CLOG(( EParse, 2, _L("-> TCodParser::ParseL") ));
    CDUMP(( EParse, 2, _S("Buf:"), _S("    "), \
        (const TUint8*)aBuf.Ptr(), aBuf.Size() ));
    iError = KErrNone;
    iData = &aData;
    iBuf = &aBuf;
    iCurP = iBuf->Ptr();
    iEndP = iCurP + iBuf->Length();
    CMediaObjectData *mediaObject = CMediaObjectData::NewL();
    // Processing lines (attribute and value) until there is more lines to read.
    while ( AttrLineL(mediaObject) )
        {
        // Some compilers require empty controlled statement block instead of
        // just a semicolon.
        }
    iData->AppendMediaObjectL( mediaObject );   
#ifdef __TEST_COD_LOG
    TPtrC ptr16;
    TPtrC8 ptr8;
    CLOG(( EParse, 3, _L("TCodParser::ParseL data:") ));
    ptr16.Set( aData.Name() );
    CLOG(( EParse, 3, _L("  Name<%S>"), &ptr16 ));
    ptr16.Set( aData.Vendor() );
    CLOG(( EParse, 3, _L("  Vendor<%S>"), &ptr16 ));
    ptr16.Set( aData.Description() );
    CLOG(( EParse, 3, _L("  Desc<%S>"), &ptr16 ));
    CLOG(( EParse, 3, _L("  Size(%d)"), aData.Size() ));
    ptr8.Set( aData.InstallNotify() );
    CLOG(( EParse, 3, _L8("  InstNotif<%S>"), &ptr8 ));
    ptr8.Set( aData.NextUrl() );
    CLOG(( EParse, 3, _L8("  NextUrl<%S>"), &ptr8 ));
    ptr8.Set( aData.NextUrlAtError() );
    CLOG(( EParse, 3, _L8("  NextUrlAtErr<%S>"), &ptr8 ));
    ptr8.Set( aData.InfoUrl() );
    CLOG(( EParse, 3, _L8("  InfoUrl<%S>"), &ptr8 ));
    ptr16.Set( aData.Price() );
    CLOG(( EParse, 3, _L("  Price<%S>"), &ptr16 ));
    ptr8.Set( aData.Icon() );
    CLOG(( EParse, 3, _L8("  Icon<%S>"), &ptr8 ));
#endif /* def __TEST_COD_LOG */

    // NULL data for clarity. These are never used later, but don't keep
    // pointers to objects which are out of reach.
    iBuf = NULL;
    iData = NULL;
    iCurP = NULL;
    iEndP = NULL;
    User::LeaveIfError( iError );
    CLOG(( EParse, 2, _L("<- TCodParser::ParseL") ));
    }

EXPORT_C TInt RSoundPlugIn::Load(const TDesC& aFileName)
/** Loads a new plug-in, replacing the existing one, if any. 

This function always causes a flush of the window server buffer.

@param aFileName The filename of the plug-in DLL to load.
@return KErrNone if the function was successful. KErrNotSupported if the currently 
loaded plug-in could not be unloaded or aFileName does not refer to a loadable plug-in.
@capability WriteDeviceData */
	{
	TInt length=aFileName.Length();
	return WriteReply(&length,sizeof(length),aFileName.Ptr(),aFileName.Size(),EWsClickOpLoad);
	}

// ----------------------------------------------------------------------------
// Sends the command to Widget launcher
// ----------------------------------------------------------------------------
//
static void HandleWidgetCommandL( 
    RApaLsSession& aSession, 
    const TDesC& aWidget,
    const TUid& aUid,
    TUint32 aOperation )
    {
    const TInt size( 2* aWidget.Length() + 3*sizeof( TUint32 ) );
    
    // Message format is <filenameLength><unicode_filename><someintegervalue>
    CApaCommandLine* cmd( CApaCommandLine::NewLC() );
    HBufC8* opaque( HBufC8::NewLC( size ) );
    
    RDesWriteStream stream;
    TPtr8 des( opaque->Des() );
    
    stream.Open( des );
    CleanupClosePushL( stream );
    
    // Generate the command.
    stream.WriteUint32L( aUid.iUid );
    stream.WriteUint32L( aWidget.Length() );
    stream.WriteL( reinterpret_cast< const TUint8* >( aWidget.Ptr() ),
                   aWidget.Size() );
    
    stream.WriteInt32L( aOperation );
    
    CleanupStack::PopAndDestroy( &stream );
    
    // Generate command.
    cmd->SetCommandL( EApaCommandBackgroundAndWithoutViews );
    cmd->SetOpaqueDataL( *opaque );    

    CleanupStack::PopAndDestroy( opaque );
    
    cmd->SetExecutableNameL( KLauncherApp );
    
    User::LeaveIfError( aSession.StartApp( *cmd ) );
    CleanupStack::PopAndDestroy( cmd );
    }

// ---------------------------------------------------------
// TDdParser::ParseL()
// ---------------------------------------------------------
//
void TDdParser::ParseL( const TDesC& aBuf, CCodData& aData, const TBool aIsDd2, TBool& aIsLicenseTag )
    {
    CLOG(( EParse, 2, _L("-> TDdParser::ParseL") ));
    CDUMP(( EParse, 2, _S("Buf:"), _S("    "), \
        (const TUint8*)aBuf.Ptr(), aBuf.Size() ));
    iError = KErrNone;
    iData = &aData;
    // XML Parser expects the buffer contain a BOM and be in
    // network byte order (this is hard-coded into cXmlParser).
    // We already have the buffer converted to UCS-2, native byte order, BOM
    // removed, and this cannot be changed without changing API.
    // So we have to re-add BOM and convert the buffer back to network byte
    // order. This is an annoying a waste, luckily a DD file is small
    // enough not to be significant.
    HBufC* buf = HBufC::NewLC( aBuf.Length() + 1 );
    buf->Des().Append( 0xFFFE );    // Add BOM, little endian as aBuf.
    buf->Des().Append( aBuf );      // Append buffer.
    // Now turn the whole buffer big-endian.
    TUint8* ptr = (TUint8*)buf->Ptr();
    for ( TInt i = 0; i < buf->Size(); i += 2 )
        {
        TUint8 tmp = ptr[i];
        ptr[i] = ptr[i + 1];
        ptr[i + 1] = tmp;
        }
    NW_WBXML_Dictionary_t* dictArray[ 1 ] = 
        { (NW_WBXML_Dictionary_t*)&NW_DdDummy_WBXMLDictionary };
    RNwWbxmlDictionary wbxmlDict;
    User::LeaveIfError( wbxmlDict.Initialize( 1, dictArray ) );
    CleanupClosePushL<RNwWbxmlDictionary>( wbxmlDict );

    NW_TinyDom_Handle_t domHandle;
    NW_Status_t stat;
    CNwDomDocumentNode* docNode = new (ELeave) CNwDomDocumentNode();
    CleanupStack::PushL( docNode );
    docNode->iDocNode = CXML_DOM_DocumentNode_BuildTree
        ( 
        &domHandle, 
        (NW_Byte*)buf->Ptr(), 
        (NW_Int32)buf->Size(), 
        /*encoded=*/NW_FALSE, 
        /*publicID=*/NW_DdDummy_PublicId, 
        /*extTNotStringTable=*/NW_FALSE,
        &stat
        );
    LeaveIfNwErrorL( stat );
    User::LeaveIfNull( docNode->iDocNode ); // Safety code.
    if (!aIsDd2)
	{
	  DocNodeL( docNode->iDocNode );
	}
    else
	{
	  iIsLicenseTag = EFalse;
	  ParseDd2DocNodeL( docNode->iDocNode );
	}
    CleanupStack::PopAndDestroy( 3, buf );  // docNode, close wbxmlDict, buf

#ifdef __TEST_COD_LOG
    TPtrC ptr16;
    TPtrC8 ptr8;
    CLOG(( EParse, 3, _L("TCodParser::ParseL data:") ));
    ptr16.Set( aData.Name() );
    CLOG(( EParse, 3, _L("  Name<%S>"), &ptr16 ));
    ptr16.Set( aData.Vendor() );
    CLOG(( EParse, 3, _L("  Vendor<%S>"), &ptr16 ));
    ptr16.Set( aData.Description() );
    CLOG(( EParse, 3, _L("  Desc<%S>"), &ptr16 ));
    CLOG(( EParse, 3, _L("  Size(%d)"), aData.Size() ));
    ptr8.Set( aData.InstallNotify() );
    CLOG(( EParse, 3, _L8("  InstNotif<%S>"), &ptr8 ));
    ptr8.Set( aData.NextUrl() );
    CLOG(( EParse, 3, _L8("  NextUrl<%S>"), &ptr8 ));
    ptr8.Set( aData.NextUrlAtError() );
    CLOG(( EParse, 3, _L8("  NextUrlAtErr<%S>"), &ptr8 ));
    ptr8.Set( aData.InfoUrl() );
    CLOG(( EParse, 3, _L8("  InfoUrl<%S>"), &ptr8 ));
    ptr16.Set( aData.Price() );
    CLOG(( EParse, 3, _L("  Price<%S>"), &ptr16 ));
    ptr8.Set( aData.Icon() );
    CLOG(( EParse, 3, _L8("  Icon<%S>"), &ptr8 ));

//TODO add logs for OMA 2
#endif /* def __TEST_COD_LOG */
	
	//If there are no media objects present to download, 
    if( !iData->Count() )
    	{
    	User::Leave( KErrCodInvalidDescriptor );	
    	}
    	
    // NULL data for clarity. These are never used later, but don't keep
    // pointers to objects which are out of reach.
    iData = NULL;
    User::LeaveIfError( iError );
    aIsLicenseTag = iIsLicenseTag;
//.........这里部分代码省略.........

// -----------------------------------------------------------------------------
// Write unicode text to file
// -----------------------------------------------------------------------------
//
void CBCTestLogger::WriteToFileL( RFile& aFile, const TDesC& aText )
    {
    TPtrC8 buf( (TUint8*)aText.Ptr(), aText.Size() );
    aFile.Write( buf );    
    }

// ---------------------------------------------------------
// CNSmlDsProvisioningAdapter::StoreAttributesL
// ---------------------------------------------------------
void CNSmlDsProvisioningAdapter::StoreAttributesL( const TDesC& aType )
    {
    _DBG_FILE("CNSmlDsProvisioningAdapter::StoreAttributesL(): begin");
    
    TInt iDataProvElementCount = iProfiles[iProfiles.Count()-1]->iDataProvElement.Count()-1;
	// Leave if aType cannot be assigned
    if( ( aType.Length() > 0 ) &&
        ( iProfiles[iProfiles.Count()-1]->iDataProvElement[iDataProvElementCount]->iRemoteDBUri ) )
        {
        TBool dataProvIdFoundInZ = FALSE;
        TSmlDataProviderId firstDataProvIdFound = 0;
        TSmlDataProviderId uidFound = 0;

        TBool doSearch = ETrue;
        if ( aType.FindF( KXVcardMimeType ) != KErrNotFound )
            {
            if ( IsOperatorProfile( *iProfiles[iProfiles.Count()-1] ) )
                {
                const CNSmlDsProfileElement& profile = *iProfiles[iProfiles.Count()-1];
                StoreOperatorUrlL( *profile.iHostAddress );
                
                // Do not make a search through adapter implementations
                doSearch = EFalse;
                uidFound = OperatorAdapterUid();
                if ( !uidFound )
                    {
                    // If OperatorAdapterUid returns 0, do a search
                    doSearch = ETrue;
                    }
                }
            }
		// look through every implementation adapter until one found
		// which supports MIME type in question
		
		// The first one located in ROM is chosen. If none found in ROM then
		// the first adapter found is chosen.

		HBufC8 *type = HBufC8::NewLC(aType.Size());
		TPtr8 typePtr = type->Des();
		CnvUtfConverter::ConvertFromUnicodeToUtf8( typePtr, aType);

		// get list of dataproviderIds
		RImplInfoPtrArray implArray;
		CleanupStack::PushL( PtrArrCleanupItemRArr( CImplementationInformation, &implArray ) );
		TUid ifUid = { KNSmlDSInterfaceUid };
		REComSession::ListImplementationsL( ifUid, implArray );
		
        if ( doSearch )
            {
            TInt countProviders = implArray.Count();
            for( TInt i = 0; i < countProviders; i++ )
                {
                CImplementationInformation* implInfo = implArray[i];

                RSyncMLDataProvider dataProvider;
                dataProvider.OpenL( iSession, implInfo->ImplementationUid().iUid );
                CleanupClosePushL( dataProvider );

                TInt mimeTypeCount = dataProvider.MimeTypeCount();
                for( TInt j = 0; j < mimeTypeCount; j++ )
                    {
                    HBufC* mimeType = dataProvider.MimeType( j ).AllocLC();
                    TPtrC8 convMimeType = ConvertTo8LC( *mimeType );
                    if( typePtr.Find( convMimeType ) == 0)
                        {
                        // MIME type in question was found
                        uidFound = implInfo->ImplementationUid().iUid;

                        if( firstDataProvIdFound == 0 )
                            {
                            // save the first in case of none found from ROM
                            firstDataProvIdFound = uidFound;
                            }
					
                        // check whether the provider is located in ROM (drive Z)
                        if( implInfo->Drive() == EDriveZ )
                            {
                            dataProvIdFoundInZ = TRUE;
                            }
                        }
				
                    CleanupStack::PopAndDestroy(2); // mimetype, ConvertTo8LC

                    if( uidFound )
                        {
                        break;
                        }
                    }
				
                CleanupStack::PopAndDestroy(); // dataProvider
			
                if ( dataProvIdFoundInZ )
                    {
                    break;
                    }
                else
                    {
//.........这里部分代码省略.........