mDNSWindows/DLLX/TXTRecord.h

/* -*- Mode: C; tab-width: 4 -*-
 *
 * Copyright (c) 2009 Apple Computer, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */



#pragma once

#include "resource.h"       // main symbols

#include "DLLX.h"

#include <vector>

#include <dns_sd.h>





#if defined(_WIN32_WCE) && !defined(_CE_DCOM) && !defined(_CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA)

#error "Single-threaded COM objects are not properly supported on Windows CE platform, such as the Windows Mobile platforms that do not include full DCOM support. Define _CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA to force ATL to support creating single-thread COM object's and allow use of it's single-threaded COM object implementations. The threading model in your rgs file was set to 'Free' as that is the only threading model supported in non DCOM Windows CE platforms."

#endif







// CTXTRecord



class ATL_NO_VTABLE CTXTRecord :

	public CComObjectRootEx<CComSingleThreadModel>,

	public CComCoClass<CTXTRecord, &CLSID_TXTRecord>,

	public IDispatchImpl<ITXTRecord, &IID_ITXTRecord, &LIBID_Bonjour, /*wMajor =*/ 1, /*wMinor =*/ 0>

{

public:

	CTXTRecord()

	:

		m_allocated( FALSE )

	{

	}



DECLARE_REGISTRY_RESOURCEID(IDR_TXTRECORD)





BEGIN_COM_MAP(CTXTRecord)

	COM_INTERFACE_ENTRY(ITXTRecord)

	COM_INTERFACE_ENTRY(IDispatch)

END_COM_MAP()







	DECLARE_PROTECT_FINAL_CONSTRUCT()



	HRESULT FinalConstruct()

	{

		return S_OK;

	}



	void FinalRelease()

	{

		if ( m_allocated )

		{

			TXTRecordDeallocate( &m_tref );

		}

	}



public:



	STDMETHOD(SetValue)(BSTR key, VARIANT value);

	STDMETHOD(RemoveValue)(BSTR key);

	STDMETHOD(ContainsKey)(BSTR key, VARIANT_BOOL* retval);

	STDMETHOD(GetValueForKey)(BSTR key, VARIANT* value);

	STDMETHOD(GetCount)(ULONG* count);

	STDMETHOD(GetKeyAtIndex)(ULONG index, BSTR* retval);

	STDMETHOD(GetValueAtIndex)(ULONG index, VARIANT* retval);



private:



	typedef std::vector< BYTE > ByteArray;

	ByteArray		m_byteArray;

	BOOL			m_allocated;

	TXTRecordRef	m_tref;



public:



	uint16_t

	GetLen()

	{

		return TXTRecordGetLength( &m_tref );

	}



	const void*

	GetBytes()

	{

		return TXTRecordGetBytesPtr( &m_tref );

	}



	void

	SetBytes

		(

		const unsigned char	*	bytes,

		uint16_t				len

		);

};



OBJECT_ENTRY_AUTO(__uuidof(TXTRecord), CTXTRecord)