u4 mythreadproc(AThread& thread)
{
CommonData *pData = static_cast<CommonData *>(thread.getParameter());
AASSERT(NULL, pData);
u4 id = thread.getId();
thread.setRunning(true);
{
{
ALock lock(pData->m_cs);
pData->m_count++;
}
{
ALock lock(g_ConsoleOutput);
std::cout << "[" << AString::fromU4(thread.getId()) << "," << pData->m_count << "]" << std::flush;
}
AThread::sleep(300);
}
thread.setRunning(false);
return 0;
}
u4 threadProc(AThread& thread)
{
std::cout << "Thread started." << std::endl;
while (!thread.hasFlag(ATHREAD_STOP))
{
if (thread.hasFlag(ATHREAD_PAUSE))
{
//a_Thread paused, wake up to see flag settings
AThread::sleep(500);
}
else
{
u4 *piter = (u4 *)thread.getParameter();
(*piter)++;
AThread::sleep(1000);
}
}
std::cout << "Thread exited." << std::endl;
return 1;
}
u4 AOSContextQueue_IsAvailable::_threadprocWorker(AThread& thread)
{
AOSContextQueue_IsAvailable::QueueWithThread *pThis = dynamic_cast<AOSContextQueue_IsAvailable::QueueWithThread *>(thread.getThis());
AOSContextQueue_IsAvailable *pOwner = dynamic_cast<AOSContextQueue_IsAvailable *>(thread.getParameter());
AASSERT(&thread, pThis);
AASSERT(&thread, pOwner);
timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 0;
thread.setRunning(true);
fd_set sockSet;
while (thread.isRun())
{
try
{
if (pThis->queue.size() > 0)
{
FD_ZERO(&sockSet);
int count = 0;
// Convert to ABasePtrQueue
ABase *p = pThis->queue.useHead();
while (count < FD_SETSIZE && p)
{
AOSContext *pContext = (AOSContext *)p;
FD_SET((SOCKET)pContext->useSocket().getSocketInfo().m_handle, &sockSet);
++count;
p = p->useNext();
}
if (count > 0)
{
int availCount = ::select(count, &sockSet, NULL, NULL, &timeout);
if (availCount > 0)
{
int count2 = 0;
p = pThis->queue.useHead();
while (availCount > 0 && count2 <= count && p)
{
AOSContext *pContext = (AOSContext *)p;
p = p->useNext();
if (FD_ISSET(pContext->useSocket().getSocketInfo().m_handle, &sockSet))
{
pContext->useConnectionFlags().setBit(AOSContext::CONFLAG_ISAVAILABLE_SELECT_SET);
//a_Attempt to read some data to check if it actually has data, if not then connection is closed
size_t bytesRead = AConstant::npos;
try
{
bytesRead = pContext->useSocket().readBlockIntoLookahead();
if (!bytesRead || AConstant::npos == bytesRead)
{
//a_No data to read, socket is closed
pContext->useConnectionFlags().setBit(AOSContext::CONFLAG_IS_SOCKET_CLOSED);
pContext->useEventVisitor().startEvent(ASW("AOSContextQueue_IsAvailable: Detected closed remote socket",58), AEventVisitor::EL_WARN);
pContext->useSocket().close();
{
ALock lock(pThis->sync);
pThis->queue.remove(pContext);
}
pOwner->m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
else if (AConstant::unavail == bytesRead)
{
// Would block, keep waiting
if (pContext->useTimeoutTimer().getInterval() > pOwner->m_NoDataTimeout)
{
AString str;
str.append("AOSContextQueue_IsAvailable: No data (non-blocking) after timeout: ",67);
pContext->useTimeoutTimer().emit(str);
//a_We are done with this request, still no data
pContext->useEventVisitor().startEvent(
str,
(pContext->useConnectionFlags().isSet(AOSContext::CONFLAG_IS_HTTP11_PIPELINING) ? AEventVisitor::EL_EVENT : AEventVisitor::EL_ERROR)
);
{
ALock lock(pThis->sync);
pThis->queue.remove(pContext);
}
pOwner->m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
}
else
{
//a_Add to next queue
pContext->useConnectionFlags().setBit(AOSContext::CONFLAG_ISAVAILABLE_PENDING);
if (pContext->useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
pContext->useEventVisitor().startEvent(ASW("AOSContextQueue_IsAvailable: HTTP header has more data",54), AEventVisitor::EL_DEBUG);
{
ALock lock(pThis->sync);
pThis->queue.remove(pContext);
}
pOwner->m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_PRE_EXECUTE, &pContext);
}
}
catch(AException e)
{
bytesRead = AConstant::npos; //a_Following switch will handle this
ARope rope("AOSContextQueue_IsAvailable: Exception reading from socket",58);
rope.append(e);
pContext->useEventVisitor().addEvent(rope, AEventVisitor::EL_ERROR);
}
--availCount;
}
else
{
//a_Select called on this AOSContext and no data available
if (pContext->useTimeoutTimer().getInterval() > pOwner->m_NoDataTimeout)
{
AString str;
str.append("AOSContextQueue_IsAvailable: No data after timeout: ",52);
pContext->useTimeoutTimer().emit(str);
//a_We are done with this request, still no data
pContext->useEventVisitor().startEvent(
str,
(pContext->useConnectionFlags().isSet(AOSContext::CONFLAG_IS_HTTP11_PIPELINING) ? AEventVisitor::EL_EVENT : AEventVisitor::EL_ERROR)
);
{
ALock lock(pThis->sync);
pThis->queue.remove(pContext);
}
pOwner->m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
}
++count2;
}
AASSERT(pOwner, !availCount);
}
else
{
//a_Nothing has data, flag them all
p = pThis->queue.useHead();
while (p)
{
AOSContext *pContext = (AOSContext *)p;
p = p->useNext();
if (pContext->useTimeoutTimer().getInterval() > pOwner->m_NoDataTimeout)
{
AString str("AOSContextQueue_IsAvailable: No data after timeout: ",52);
pContext->useTimeoutTimer().emit(str);
//a_We are done with this request, still no data
ALock lock(pThis->sync);
pContext->useEventVisitor().startEvent(
str,
(pContext->useConnectionFlags().isSet(AOSContext::CONFLAG_IS_HTTP11_PIPELINING) ? AEventVisitor::EL_EVENT : AEventVisitor::EL_ERROR)
);
pThis->queue.remove(pContext);
pOwner->m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
}
}
}
//a_Sleep between selects, requests in this queue are already slow
AThread::sleep(pOwner->m_LoopDelay);
}
else
AThread::sleep(pOwner->m_EmptyQueueDelay); //a_Nothing in queue, deep sleep
}
catch(AException& e)
{
pOwner->m_Services.useLog().addException(e);
}
catch(std::exception& e)
{
pOwner->m_Services.useLog().addException(e);
}
catch(...)
{
pOwner->m_Services.useLog().add(ASWNL("Unknown exception caught in AOSContextQueue_IsAvailable::threadproc"), ALog::EVENT_EXCEPTION);
}
}
thread.setRunning(false);
return 0;
}
