我的目的是连接tcp服务器 ，tcp要求是非阻塞的，然后循环判断有没有服务器的数据，如果有的话就处理。现在的现象是连接到服务器之后能正常通信，但是过了几十秒之后，服务器发送消息就接收不到了。还有就是反复接收服务器消息大概10几次之后 整个程序就卡死在sl_Recv（）这里，下面是主要的代码，大家帮我看看谢谢了。
int BsdTcpClient(unsigned short usPort)
{
sAddr.sin_family = SL_AF_INET;
sAddr.sin_port = sl_Htons((unsigned short)usPort);
sAddr.sin_addr.s_addr = sl_Htonl((unsigned int)severip);
iAddrSize = sizeof(SlSockAddrIn_t);
SlSockNonblocking_t enableOption;
enableOption.NonblockingEnabled = 1;
// creating a TCP socket
iSockID = sl_Socket(SL_AF_INET,SL_SOCK_STREAM, 0);
if( iSockID < 0 )
{
//ASSERT_ON_ERROR(SOCKET_CREATE_ERROR);
printf("SOCKET_CREATE_ERROR\n");
}
printf("iSockID : %d\n" ,iSockID);
// connecting to TCP server
iStatus = sl_Connect(iSockID, ( SlSockAddr_t *)&sAddr, iAddrSize);
if( iStatus < 0 )
{
// error
sl_Close(iSockID);
//ASSERT_ON_ERROR(CONNECT_ERROR);
printf("CONNECT_ERROR\n");
}
iStatus = sl_SetSockOpt(iSockID, SL_SOL_SOCKET, SL_SO_NONBLOCKING,
(_u8 *)&enableOption, sizeof(enableOption));
if( iSockID < 0 )
{
printf("udp noblock error\n");
}
MAP_UtilsDelay(80000000);
printf("connect tcp sever success\n");
return SUCCESS;
}
int main()
{
iStatus = sl_Recv(iNewSockID, tcpbuf, sizeof(tcpbuf), 0);
if(iStatus < 0)
{
//printf("2");
}
else if(iStatus == 0)
{
}
else
{
printf("recv sever message\n");
for(i=0 ;i<iStatus ;i++)
{
printf("0x%02x ",tcpbuf[i]);
}
}
}