myvtm/Module/include/DeviceCrossHelper.h

#include "stdafx.h"
#ifndef _RVC_DEVICE_CROSS_HELPER_H_
#define _RVC_DEVICE_CROSS_HELPER_H_

#include "ListEntry.h"
#include "SpHelper.h"

#ifndef FIELD_OFFSET
// begin_ntoshvp
//
// Calculate the byte offset of a field in a structure of type type.
//

#define FIELD_OFFSET(type, field)    ((LONG)(LONG_PTR)&(((type *)0)->field))

//
// Calculate the size of a field in a structure of type type, without
// knowing or stating the type of the field.
//
#define RTL_FIELD_SIZE(type, field) (sizeof(((type *)0)->field))

//
// Calculate the size of a structure of type type up through and
// including a field.
//
#define RTL_SIZEOF_THROUGH_FIELD(type, field) \
	(FIELD_OFFSET(type, field) + RTL_FIELD_SIZE(type, field))

// end_ntoshvp

#endif // FIELD_OFFSET

template<typename T>
static inline ErrorCodeEnum SpObject2Blob(T &t, CBlob& out) 
{
	CAutoBuffer buf = SpObject2Buffer<T>(t);
	SpBuffer spbuf;
	if (!spbuf.OpenRead((const char*)&buf[0], buf.GetCount())) {
		return Error_Unexpect;
	}
	out = spbuf.ToBlob();
	return Error_Succeed;
}

template<class T>
static inline ErrorCodeEnum SpBlob2Object(CBlob blob, T &t)
{
	ErrorCodeEnum Error;
	SpBuffer spbuf;
	if (spbuf.OpenRead((const char*)blob.m_pData, blob.m_iLength)) {
		t.Serialize(spbuf);
		Error = Error_Succeed;
	} else {
		Error = Error_Bug;
	}
	return Error;
}

template<class TReq, class TAns>
struct SpReqAnsContextNoAnswer : public SpReqAnsContext<TReq, TAns> 
{
	SpReqAnsContextNoAnswer(CSmartPointer<ITransactionContext> &pTransactionContext)
		: SpReqAnsContext<TReq, TAns>(pTransactionContext) {/*empty for sonar. */}
	ErrorCodeEnum Answer(ErrorCodeEnum Error = Error_Succeed)
	{
		Dbg("here has been override? no way bcz it's parent has no virtual statement.");
		return Error_Duplication;
	}
};

template<class TInfo>
struct SpOnewayCallContextNoAnswer : public SpOnewayCallContext<TInfo>
{

};

class SpPuppetTransactionContext : public ITransactionContext {
public:
	virtual bool IsOneWayCall() { return true; }
	virtual DWORD GetRequestID() { return  0xFFFFFFFF; }
	virtual ErrorCodeEnum GetReceiveBuffer(DWORD &dwMessageID, DWORD &dwMessageSignature, CAutoBuffer &Buffer) {
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum SendAnswer(CAutoBuffer Buffer, bool bEnd=true) {
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum SendAnswer(ErrorCodeEnum eErrorCode, DWORD dwUserError = 0){
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum SendAnswer(ErrorCodeEnum eErrorCode, DWORD dwUserError = 0, CSimpleString str = "") {
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum SetExpireTime(DWORD dwMS){
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum GetExpireTime(DWORD &dwWholeTime,DWORD &dwLeftTime){
		return Error_NotImpl;
	}
	virtual ErrorCodeEnum GetLinkContext(linkContext& curLink)
    {
        return Error_NotImpl;
    }
};

#define DEFINE_TEMP_TRANSACTION() \
	CSmartPointer<ITransactionContext> spTmp; \
	SpPuppetTransactionContext *pTransactionContext = new SpPuppetTransactionContext(); \
	spTmp.Attach(pTransactionContext) 

#define DEFINE_PUPPET_CONTEXT_WITH_TYPE(TReq, TAns) \
	DEFINE_TEMP_TRANSACTION(); \
	SpReqAnsContextNoAnswer<TReq, \
	TAns>::Pointer ctx = new SpReqAnsContextNoAnswer<TReq, \
	TAns>(spTmp)

typedef struct _TC_CONTEXT_CALL_ITEM {
	LIST_ENTRY ListEntry;
	DWORD dwRequestID;
	PVOID Context;
}TC_CONTEXT_CALL_ITEM, *PTC_CONTEXT_CALL_ITEM;

typedef struct _TC_ENTITY_INTERFACE_QUEUE {
	LIST_ENTRY ContextListHead;
	DWORD dwMethodSig;
	DWORD dwSequence;
}TC_ENTITY_INTERFACE_QUEUE, *PTC_ENTITY_INTERFACE_QUEUE;

#define TWHeapAlloc(x) (HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, x))
#define TWHeapFree(x)  (HeapFree(GetProcessHeap(), 0, x))

#endif //_RVC_DEVICE_CROSS_HELPER_H_