UDT linux下关闭链接耗时过长

悬赏园豆：100 [待解决问题]

不知道使用UDT的人多不多，很大可能会石沉大海啊

=========================================================
我在使用UDT库的时候，linux下正常关闭一个连接耗时要300ms，Windows下耗时只要十几毫秒，跟踪到代码是在core.cpp中的
“
void CUDT::close()
{
if (!m_bOpened)
return;

if (0 != m_Linger.l_onoff)
{
uint64_t entertime = CTimer::getTime();

// 就是这个while循环耗时很长
while (!m_bBroken && m_bConnected && (m_pSndBuffer->getCurrBufSize() > 0) && (CTimer::getTime() - entertime < m_Linger.l_linger * 1000000ULL))
{
// linger has been checked by previous close() call and has expired
if (m_ullLingerExpiration >= entertime)
break;

     if (!m_bSynSending)
     {
        // if this socket enables asynchronous sending, return immediately and let GC to close it later
        if (0 == m_ullLingerExpiration)
           m_ullLingerExpiration = entertime + m_Linger.l_linger * 1000000ULL;

        return;
     }

     #ifndef WIN32
        timespec ts;
        ts.tv_sec = 0;
        ts.tv_nsec = 1000000;
        nanosleep(&ts, NULL);
     #else
        Sleep(1);
     #endif
  }

}

.................................

}
”
===================================================================
有没有对UDT协议熟悉的好友帮忙看看

UDT