Windows TCP套接字recv延迟

@H_502_12@

如何让windows tcp socket正常工作(没有延迟)？@H_502_12@

PS：我玩过TCP_NODELAY& TcpAckFrequency已经. Wireshark显示一切正常.所以我认为这是一些Windows优化,应该关闭.@H_502_12@

读 – @H_502_12@

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int WMaster::DataRead(void)
{
if (!open_ok)  return 0;
if (!checkSocket())
{
    PrintErrNo();
    return 0;
}
iResult = recv(ConnectSocket,(char *)inpuT_Buff,sizeof(inpuT_Buff),0);

nError=WSAGetLastError();
if(nError==0) return iResult;
if(nError==WSAEWOULDBLOCK) return iResult;

PrintErrNo();
return 0;
}

初始化-@H_502_12@

@H_502_12@

ConnectSocket = INVALID_SOCKET;

iResult = WSAStartup(MAKEWORD(2,2),&wsaData);
ConnectSocket = socket(AF_INET,SOCK_STREAM,IPPROTO_TCp);
ZeroMemory(&clientservice,sizeof(clientservicE));
clientservice.sin_family = AF_INET;
clientservice.sin_addr.s_addr = inet_addr( deviceName.tolatin1().constData() );
clientservice.sin_port = htons( port);

iResult = setsockopt(ConnectSocket,IPPROTO_TCP,TCP_NODELAY,(char *) &flag,sizeof (int));

u_long iMode=1;
iResult=ioctlsocket(ConnectSocket,FIONBIO,&iModE);

iResult = ::connect( ConnectSocket,(SOCKADDR*) &clientservice,sizeof(clientservicE) );

checkSocket – @H_502_12@

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bool WMaster::checkSocket(void)
{
socklen_t len = sizeof (int);
int retval = getsockopt (ConnectSocket,SOL_SOCKET,SO_ERROR,(char*)(&valopt),&len );
if (retval!=0)
{
   open_ok=false;
   return false;
};
return true;
}