hpsocket-linux/TcpPackClient.h

/*
 * Copyright: JessMA Open Source (ldcsaa@gmail.com)
 *
 * Author	: Bruce Liang
 * Website	: https://github.com/ldcsaa
 * Project	: https://github.com/ldcsaa/HP-Socket
 * Blog		: http://www.cnblogs.com/ldcsaa
 * Wiki		: http://www.oschina.net/p/hp-socket
 * QQ Group	: 44636872, 75375912
 *
 * 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 "TcpClient.h"
#include "MiscHelper.h"

template<class T> class CTcpPackClientT : public IPackClient, public T
{
	using __super = T;
	using __super::SetLastError;
	using __super::m_itPool;

public:
	using __super::Stop;
	using __super::Wait;
	using __super::GetState;

public:
	virtual BOOL SendPackets(const WSABUF pBuffers[], int iCount)
	{
		int iNewCount = iCount + 1;
		unique_ptr<WSABUF[]> buffers(new WSABUF[iNewCount]);

		DWORD dwHeader;
		if(!::AddPackHeader(pBuffers, iCount, buffers, m_dwMaxPackSize, m_usHeaderFlag, dwHeader))
			return FALSE;

		return __super::SendPackets(buffers.get(), iNewCount);
	}

protected:
	virtual EnHandleResult DoFireReceive(ITcpClient* pSender, const BYTE* pData, int iLength)
	{
		return ParsePack(this, &m_pkInfo, &m_lsBuffer, (CTcpPackClientT*)pSender, m_dwMaxPackSize, m_usHeaderFlag, pData, iLength);
	}

	virtual BOOL BeforeUnpause()
	{
		return (ParsePack(this, &m_pkInfo, &m_lsBuffer, (CTcpPackClientT*)this, m_dwMaxPackSize, m_usHeaderFlag) != HR_ERROR);
	}

	virtual BOOL CheckParams()
	{
		if	((m_dwMaxPackSize > 0 && m_dwMaxPackSize <= TCP_PACK_MAX_SIZE_LIMIT)	&&
			(m_usHeaderFlag >= 0 && m_usHeaderFlag <= TCP_PACK_HEADER_FLAG_LIMIT)	)
			return __super::CheckParams();

		SetLastError(SE_INVALID_PARAM, __FUNCTION__, ERROR_INVALID_PARAMETER);
		return FALSE;
	}

	virtual void Reset()
	{
		m_lsBuffer.Clear();
		m_pkInfo.Reset();

		__super::Reset();
	}

public:
	virtual void SetMaxPackSize		(DWORD dwMaxPackSize)		{ENSURE_HAS_STOPPED(); m_dwMaxPackSize = dwMaxPackSize;}
	virtual void SetPackHeaderFlag	(USHORT usPackHeaderFlag)	{ENSURE_HAS_STOPPED(); m_usHeaderFlag  = usPackHeaderFlag;}
	virtual DWORD GetMaxPackSize	()							{return m_dwMaxPackSize;}
	virtual USHORT GetPackHeaderFlag()							{return m_usHeaderFlag;}

private:
	EnHandleResult DoFireSuperReceive(ITcpClient* pSender, const BYTE* pData, int iLength)
		{return __super::DoFireReceive(pSender, pData, iLength);}

	friend EnHandleResult ParsePack<>	(CTcpPackClientT* pThis, TPackInfo<TItemListEx>* pInfo, TItemListEx* pBuffer, CTcpPackClientT* pSocket,
										DWORD dwMaxPackSize, USHORT usPackHeaderFlag);

public:
	CTcpPackClientT(ITcpClientListener* pListener)
	: T					(pListener)
	, m_dwMaxPackSize	(TCP_PACK_DEFAULT_MAX_SIZE)
	, m_usHeaderFlag	(TCP_PACK_DEFAULT_HEADER_FLAG)
	, m_pkInfo			(nullptr)
	, m_lsBuffer		(m_itPool)
	{

	}

	virtual ~CTcpPackClientT()
	{
		ENSURE_STOP();
	}

private:
	DWORD	m_dwMaxPackSize;
	USHORT	m_usHeaderFlag;

	TPackInfo<TItemListEx>	m_pkInfo;
	TItemListEx				m_lsBuffer;
};

typedef CTcpPackClientT<CTcpClient> CTcpPackClient;

#ifdef _SSL_SUPPORT

#include "SSLClient.h"
typedef CTcpPackClientT<CSSLClient> CSSLPackClient;

#endif