TCP超时设置的客户端重发5次

代码

bool AsioAsyncTcpClient::SendDataTcp(string msg)
{
	bool re = false;
	int sendcnt = 5;
	int nNetTimeout=500;//ms
	uint8_t readbuf[1024];
	SOCKADDR_IN addrSrv;
	addrSrv.sin_family = AF_INET;
	addrSrv.sin_port = htons(port);
	addrSrv.sin_addr.S_un.S_addr = inet_addr(ip.c_str());
	do 
	{

		//创建套接字
		SOCKET sockClient = socket(AF_INET, SOCK_STREAM, 0);
		if (SOCKET_ERROR == sockClient){
			//printf("Socket() error:%d", WSAGetLastError());
			re = false;
		}
		int nZero = 0;
		setsockopt(sockClient, SOL_SOCKET, SO_RCVTIMEO, (char *)&nNetTimeout, sizeof(int));
		if (!re&&connect(sockClient, (struct  sockaddr*)&addrSrv, sizeof(addrSrv)) == INVALID_SOCKET){
			//printf("Connect failed:%d", WSAGetLastError());
			re = false;
		}



		if (!re && msg.size() == send(sockClient, msg.c_str(), msg.size(), 0))
		{
			memset(readbuf, 0, 1024);
			int relen = recv(sockClient, (char*)readbuf, 1024, 0);
			if (relen == 27 && readbuf[0] == 0xaa && readbuf[1] == 0xaa && readbuf[25] == 0xee && readbuf[26] == 0xee)
			{
				//aaaa460000001101aae40701040c250300000b00000c0dc2aaeeee
				re = true;
			}
			else
			{
				WriteDataLog::TransferLog(string((char*)readbuf,relen), 1);
			}
		}
		closesocket(sockClient);

	} while (!re && --sendcnt>0);
	
	if (!re)
	{
		WriteDataLog::TransferLog("send fail   ");
		WriteDataLog::TransferLog(msg,1);
	}
	return re;

	
}