Esempio n. 1
0
        public int selectEx(ref UDTSOCKET[] fds, ref UDTSOCKET[] readfds, ref UDTSOCKET[] writefds, ref UDTSOCKET[] exceptfds, Int64 msTimeOut)
        {
            Int64 entertime = CClock.getTime();

            Int64 to;
            if (msTimeOut >= 0)
                to = msTimeOut * 1000;
            else
                to = 0xFFFFFFFFFFFFFFFF;

            // initialize results
            int count = 0;
            if (null != readfds)
                readfds.clear();
            if (null != writefds)
                writefds.clear();
            if (null != exceptfds)
                exceptfds.clear();

            do
            {
                //for (vector<UDTSOCKET>::const_iterator i = fds.begin(); i != fds.end(); ++ i)
                foreach (UDTSOCKET i in fds)
                {
                    UdtSocket s = locate(i);

                    if ((null == s) || s.m_pUDT.m_bBroken || (s.m_Status == UDTSTATUS.CLOSED))
                    {
                        if (null != exceptfds)
                        {
                            exceptfds.push_back(i);
                            ++count;
                        }
                        continue;
                    }

                    if (null != readfds)
                    {
                        if ((s.m_pUDT.m_bConnected && (s.m_pUDT.m_pRcvBuffer.getRcvDataSize() > 0) && ((s.m_pUDT.m_iSockType == UDT_STREAM) || (s.m_pUDT.m_pRcvBuffer.getRcvMsgNum() > 0)))
                           || (s.m_pUDT.m_bListening && (s.m_pQueuedSockets.size() > 0)))
                        {
                            readfds.push_back(s.m_SocketID);
                            ++count;
                        }
                    }

                    if (null != writefds)
                    {
                        if (s.m_pUDT.m_bConnected && (s.m_pUDT.m_pSndBuffer.getCurrBufSize() < s.m_pUDT.m_iSndBufSize))
                        {
                            writefds.push_back(s.m_SocketID);
                            ++count;
                        }
                    }
                }

                if (count > 0)
                    break;

                CClock.waitForEvent();
            } while (to > CClock.getTime() - entertime);

            return count;
        }