[omniORB] Need to know about omniORBs file descriptor allocation

[Sai-Lai Lo]

Forgot about the close().

Revised:


#define CLOSESOCKET(sock)  do { omni_mutex_lock sync(fds_lock); \
                                close(sock); \
                                FD_CLR(sock,&omniORB::fds); \
                               } while(0)