int CSndUList::pop(sockaddr*& addr, CPacket& pkt)
{
CGuard listguard(m_ListLock);
if (-1 == m_iLastEntry)
return -1;
// no pop until the next schedulled time
uint64_t ts;
CTimer::rdtsc(ts);
if (ts < m_pHeap[0]->m_llTimeStamp)
return -1;
CUDT* u = m_pHeap[0]->m_pUDT;
remove_(u);
if (!u->m_bConnected || u->m_bBroken)
return -1;
// pack a packet from the socket
if (u->packData(pkt, ts) <= 0)
return -1;
addr = u->m_pPeerAddr;
// insert a new entry, ts is the next processing time
if (ts > 0)
insert_(ts, u);
return 1;
}
DWORD WINAPI CSndQueue::worker(LPVOID param)
#endif
{
CSndQueue* self = (CSndQueue*)param;
CPacket pkt;
while (!self->m_bClosing)
{
uint64_t ts = self->m_pSndUList->getNextProcTime();
if (ts > 0)
{
// wait until next processing time of the first socket on the list
uint64_t currtime;
CTimer::rdtsc(currtime);
if (currtime < ts)
self->m_pTimer->sleepto(ts);
// it is time to process it, pop it out/remove from the list
CUDT* u = self->m_pSndUList->pop();
if ((NULL == u) || !u->m_bConnected || u->m_bBroken)
continue;
// pack a packet from the socket
uint64_t ts;
if (u->packData(pkt, ts) > 0)
self->m_pChannel->sendto(u->m_pPeerAddr, pkt);
// insert a new entry, ts is the next processing time
if (ts > 0)
self->m_pSndUList->insert(ts, u);
}
else
{
// wait here if there is no sockets with data to be sent
#ifndef WIN32
pthread_mutex_lock(&self->m_WindowLock);
if (!self->m_bClosing && (self->m_pSndUList->m_iLastEntry < 0))
pthread_cond_wait(&self->m_WindowCond, &self->m_WindowLock);
pthread_mutex_unlock(&self->m_WindowLock);
#else
WaitForSingleObject(self->m_WindowCond, INFINITE);
#endif
}
}
return NULL;
}