设置socket缓存的方法
//增加SOCKET缓存{int size = 0;int buf_len = sizeof(int);ACE_OS::getsockopt(icmp_sk, SOL_SOCKET, SO_RCVBUF, (char*)(&size), &buf_len);size = size * 10;ACE_OS::setsockopt(icmp_sk, SOL_SOCKET, SO_RCVBUF, (const char*)(&size), sizeof(int));}