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#include "k2l-type.h"
#include "K2LIPC.h"
#include "IPCFlowDecoder.h"
#include "Ipc.h"
#include <string.h>
//-----------------------------------------------------------------------------
class CIpcListener : public IIPCListener
{
public:
CIpcListener() : messageCallback(0)
, errorCallback(0)
, messageLostCallback(0)
{
}
virtual ~CIpcListener() {}
virtual void OnMessage(IIpc* pIpc, BYTE channel, BYTE errorCode, BYTE* pPacket, int nLen)
{
if (messageCallback)
{
messageCallback(pIpc, channel, errorCode, pPacket, nLen);
}
}
virtual void OnError(IIpc* pIpc)
{
if (errorCallback)
{
errorCallback(pIpc);
}
}
virtual void OnMessageLost(IIpc* pIpc)
{
if (messageLostCallback)
{
messageLostCallback(pIpc);
}
}
FCT_OnMessageEvent messageCallback;
FCT_OnEvent errorCallback;
FCT_OnEvent messageLostCallback;
};
//-----------------------------------------------------------------------------
CIpc::CIpc() : m_pResultBuffer(0)
, m_nResultLen(0)
, m_pIpcListener(0)
, m_pFlowDecoder(NULL)
{
}
//-----------------------------------------------------------------------------
CIpc::~CIpc()
{
}
//-----------------------------------------------------------------------------
IIPCListener* CIpc::GetListener()
{
return m_pIpcListener;
}
//-----------------------------------------------------------------------------
int CIpc::Init(IIPCListener* pListener)
{
CSafeLock safeLock(&m_lock);
m_pFlowDecoder = new CIPCFlowDecoder(this);
m_pIpcListener = pListener;
return 0;
}
//-----------------------------------------------------------------------------
int CIpc::Deinit()
{
CSafeLock safeLock(&m_lock);
m_pIpcListener = NULL;
delete m_pFlowDecoder;
m_pFlowDecoder = NULL;
return 0;
}
//-----------------------------------------------------------------------------
void CIpc::Decode(BYTE* pBuffer, DWORD nLen)
{
CSafeLock safeLock(&m_lock);
if (m_pFlowDecoder)
m_pFlowDecoder->DecodeFlow(pBuffer, nLen);
}
//-----------------------------------------------------------------------------
int CIpc::FormatRequest(BYTE channel, BYTE ifaceId, BYTE funId, DWORD dwSenderID, const BYTE *pData, DWORD dataLen, BYTE* pResult, int nResultLen, int* nResultLenNeeded)
{
int nRet = -1;
if (!nResultLenNeeded)
return -1;
*nResultLenNeeded = 0;
int nTotalLength = sizeof(CIpcPacket) + sizeof(CRequest) + dataLen;
if (nTotalLength <= nResultLen)
{
if ((dataLen & 1) == 0 && pResult)
{
BYTE* buffer = pResult;
memset(buffer, 0, nTotalLength);
CIpcPacket* pIpcPacket = reinterpret_cast<CIpcPacket*>(buffer);
CRequest* pRequest = reinterpret_cast<CRequest*>(pIpcPacket + 1);
pIpcPacket->m_head = 0x04;
pIpcPacket->m_channel = channel;
pIpcPacket->m_length = sizeof(CRequest) + dataLen;
pRequest->m_interface = ifaceId;
pRequest->m_function = funId;
if (pData != NULL && dataLen > 0)
{
memcpy(reinterpret_cast<BYTE*>(pRequest + 1), pData, dataLen);
}
pRequest->m_requestId = dwSenderID;
BYTE checkSum = 0;
for (int i = 0; i < sizeof(CIpcPacket) - 1; i++)
{
checkSum += buffer[i];
}
pIpcPacket->m_hdrCrc = checkSum;
nRet = nTotalLength;
}
else
{
nRet = -1;
}
}
else
{
nRet = -1;
*nResultLenNeeded = nTotalLength;
}
return nRet;
}
//-----------------------------------------------------------------------------
void CIpc::OnPacket(CIpcPacket* pPacket)
{
if (!m_pIpcListener)
return;
BYTE* pBuffer = (BYTE*)(pPacket + 1);
m_pIpcListener->OnMessage(this, pPacket->m_channel, pPacket->m_errorCode, pBuffer, pPacket->m_length);
}
//-----------------------------------------------------------------------------
IIPCListener* CIpc::CreateListener(FCT_OnMessageEvent callback, FCT_OnEvent error, FCT_OnEvent overflow)
{
CIpcListener* pListener = new CIpcListener;
pListener->messageCallback = callback;
pListener->errorCallback = error;
pListener->messageLostCallback = overflow;
return pListener;
}
//-----------------------------------------------------------------------------
void CIpc::DestroyListener()
{
delete m_pIpcListener;
m_pIpcListener = NULL;
}
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