关于CIOCPServer类的GetHostName(SOCKET socket)函数移植到vs2010报错的求助！

cqzj70 2012-11-06 04:16:12

我将CIOCPServer类移植到我的网络验证程序中在vs2010就报错
CString CIOCPServer::GetHostName(SOCKET socket)
{
sockaddr_in sockAddr;
memset(&sockAddr, 0, sizeof(sockAddr));

int nSockAddrLen = sizeof(sockAddr);

BOOL bResult = getpeername(socket,(SOCKADDR*)&sockAddr, &nSockAddrLen);

return bResult != INVALID_SOCKET ? inet_ntoa(sockAddr.sin_addr) : "";
}

error C2664: 'ATL::CStringT<BaseType,StringTraits>::CStringT(const VARIANT &)' : cannot convert parameter 1 from 'void' to 'const VARIANT &'

我也知道是由于在VC6.0下用双目运算符不会报错，到了高版本vs2010就报错，特别是这一句return bResult != INVALID_SOCKET ? inet_ntoa(sockAddr.sin_addr) : "";
望哪位达人修改一下，谢谢。

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cqzj70 2012-11-06

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终于找到了原因，属性设多字节OK，只有自己给自己结贴了

基于IOCP完成端口的封装类CIOCPServer工程代码~注释很详细以及相关用法

#include #include #pragma comment(lib,"ws2_32.lib") #include "Buffer.h" #include "CpuUsage.h" #include #include //////////////////////////////////////////////////////////////////// #define NC_CLIENT_CONNECT 0x0001 #define NC_CLIENT_DISCONNECT 0x0002 #define NC_TRANSMIT 0x0003 #define NC_RECEIVE 0x0004 #define NC_RECEIVE_COMPLETE 0x0005 // 完整接收 class CLock { public: CLock(CRITICAL_SECTION& cs, const CString& strFunc) { m_strFunc = strFunc; m_pcs = &cs; Lock(); } ~CLock() { Unlock(); } void Unlock() { LeaveCriticalSection(m_pcs); TRACE(_T("LC %d %s\n") , GetCurrentThreadId() , m_strFunc); } void Lock() { TRACE(_T("EC %d %s\n") , GetCurrentThreadId(), m_strFunc); EnterCriticalSection(m_pcs); } protected: CRITICAL_SECTION* m_pcs; CString m_strFunc; }; enum IOType { IOInitialize, IORead, IOWrite, IOIdle }; class OVERLAPPEDPLUS { public: OVERLAPPED m_ol; IOType m_ioType; OVERLAPPEDPLUS(IOType ioType) { ZeroMemory(this, sizeof(OVERLAPPEDPLUS)); m_ioType = ioType; } }; //lang2.1_3 struct ClientContext //简单分析ClientContext结构体然后回到 SendSelectCommand { SOCKET m_Socket; //套接字 // Store buffers CBuffer m_WriteBuffer; CBuffer m_CompressionBuffer; // 接收到的压缩的数据 CBuffer m_DeCompressionBuffer; // 解压后的数据 CBuffer m_ResendWriteBuffer; // 上次发送的数据包，接收失败时重发时用 int m_Dialog[2]; // 放对话框列表用，第一个int是类型，第二个是CDialog的地址 int m_nTransferProgress; // Input Elements for Winsock WSABUF m_wsaInBuffer; BYTE m_byInBuffer[8192]; // Output elements for Winsock WSABUF m_wsaOutBuffer; HANDLE m_hWriteComplete; // Message counts... purely for example purposes LONG m_nMsgIn; LONG m_nMsgOut; BOOL m_bIsMainSocket; // 是不是主socket ClientContext* m_pWriteContext; ClientContext* m_pReadContext; }; template<> inline UINT AFXAPI HashKey(CString & strGuid) { return HashKey( (LPCTSTR) strGuid); } #include "Mapper.h" typedef void (CALLBACK* NOTIFYPROC)(LPVOID, ClientContext*, UINT nCode); typedef CList ContextList; class CMainFrame; class CIOCPServer { public: void DisconnectAll(); CIOCPServer(); virtual ~CIOCPServer(); NOTIFYPROC m_pNotifyProc; CMainFrame* m_pFrame; bool Initialize(NOTIFYPROC pNotifyProc, CMainFrame* pFrame, int nMaxConnections, int nPort); static unsigned __stdcall ListenThreadProc(LPVOID lpVoid); static unsigned __stdcall ThreadPoolFunc(LPVOID WorkContext); static CRITICAL_SECTION m_cs; void Send(ClientContext* pContext, LPBYTE lpData, UINT nSize); void PostRecv(ClientContext* pContext); bool IsRunning(); void Shutdown(); void ResetConnection(ClientContext* pContext); LONG m_nCurrentThreads; LONG m_nBusyThreads; UINT m_nSendKbps; // 发送即时速度 UINT m_nRecvKbps; // 接受即时速度 UINT m_nMaxConnections; // 最大连接数 protected: void InitializeClientRead(ClientContext* pContext); BOOL AssociateSocketWithCompletionPort(SOCKET device, HANDLE hCompletionPort, DWORD dwCompletionKey); void RemoveStaleClient(ClientContext* pContext, BOOL bGraceful); void MoveToFreePool(ClientContext *pContext); ClientContext* AllocateContext(); LONG m_nWorkerCnt; bool m_bInit; bool m_bDisconnectAll; BYTE m_bPacketFlag[5]; void CloseCompletionPort(); void OnAccept(); bool InitializeIOCP(void); void Stop(); ContextList m_listContexts; ContextList m_listFreePool; WSAEVENT m_hEvent; SOCKET m_socListen; HANDLE m_hKillEvent; HANDLE m_hThread; HANDLE m_hCompletionPort; bool m_bTimeToKill; CCpuUsage m_cpu; LONG m_nKeepLiveTime; // 心跳超时 // Thread Pool Tunables LONG m_nThreadPoolMin; LONG m_nThreadPoolMax; LONG m_nCPULoThreshold; LONG m_nCPUHiThreshold; CString GetHostName(SOCKET socket); void CreateStream(ClientContext* pContext); BEGIN_IO_MSG_MAP() IO_MESSAGE_HANDLER(IORead, OnClientReading) IO_MESSAGE_HANDLER(IOWrite, OnClientWriting) IO_MESSAGE_HANDLER(IOInitialize, OnClientInitializing) END_IO_MSG_MAP() bool OnClientInitializing (ClientContext* pContext, DWORD dwSize = 0); bool OnClientReading (ClientContext* pContext, DWORD dwSize = 0); bool OnClientWriting (ClientContext* pContext, DWORD dwSize = 0); };

此代码http://download.csdn.net/source/1101107 的新版本，修改了一些不过，但udp server还存在问题，发布此代码的目的就是做技术交流，还希望大虾能知道一下小弟。

封装好的io完成端口类，tcp/ip网络通信

IOCP 完全端口网络服务器高效

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