Exemplo n.º 1
0
//  Push event into active queue
bool EventManager::VQueueEvent( const IEventPtr& pEvent )
   {
   ENG_ASSERT( m_ActiveQueue >= 0 );
   ENG_ASSERT( m_ActiveQueue < EVENTMANAGER_NUM_QUEUES );
   auto mapIt = m_EventListeners.find( pEvent->VGetEventType() );
   // If no one is listening, abort
   if( mapIt == m_EventListeners.end() || !mapIt->second.size() )
      {
      return false;
      }
   
   m_EventQueues[m_ActiveQueue].push_back( pEvent );
   return true;
   }
Exemplo n.º 2
0
// Make all listeners process the event right now instead of add the event into queue
bool EventManager::VTriggerEvent( IEventPtr pEvent ) const
   {
   auto mapIt = m_EventListeners.find( pEvent->VGetEventType() );
   // corresponding listing list is not exist
   if( mapIt == m_EventListeners.end() )
      {
      return false;
      }
   auto eventListenerList = mapIt->second;
   bool processed = false;
   for( auto listIt = eventListenerList.begin(); listIt != eventListenerList.end(); ++listIt )
      {
      EventListenerDelegate listener = (*listIt);
      // trigger event
      listener( pEvent );
      processed = true;
      }
   return processed;
   }
Exemplo n.º 3
0
bool EventManager::VUpdate( unsigned long maxMs ) 
   {
   unsigned long currMs = (unsigned long) ( GetGlobalTimer()->GetTime() * 1000.0 );
   unsigned long targetMs = ( maxMs == kINFINITE )? kINFINITE: currMs + maxMs;

	// swap active queues and clear the new queue after the swap
    int queueToProcess = m_ActiveQueue;
	m_ActiveQueue = (m_ActiveQueue + 1) % EVENTMANAGER_NUM_QUEUES;
	m_EventQueues[m_ActiveQueue].clear();

   std::string s( ( "EventLoop", "Processing Event Queue " +
      ToStr( queueToProcess ) + "; " +
      ToStr( ( unsigned long ) m_EventQueues[ queueToProcess ].size() )
      + " events to process" ) ); \
      Logger::Log( "EventLoop", s, NULL, NULL, 0 ); \
   /*ENG_LOG("EventLoop", "Processing Event Queue " + 
            ToStr(queueToProcess) + "; " + 
            ToStr((unsigned long)m_EventQueues[queueToProcess].size()) 
            + " events to process");*/

	// Process the queue
	while ( !m_EventQueues[queueToProcess].empty() )
	   {
      // pop the front of the queue
		IEventPtr pEvent = m_EventQueues[queueToProcess].front();
      m_EventQueues[queueToProcess].pop_front();
      ENG_LOG( "EventLoop", "\t\tProcessing Event " + std::string( pEvent->GetName() ) );

		const EventType& eventType = pEvent->VGetEventType();

      // find all the delegate functions registered for this event
		auto findIt = m_EventListeners.find(eventType);
		if (findIt != m_EventListeners.end())
		   {
			const EventListenerList& eventListeners = findIt->second;
         ENG_LOG("EventLoop", "\t\tFound " + ToStr((unsigned long)eventListeners.size()) + " delegates");

         // call each listener
			for (auto it = eventListeners.begin(); it != eventListeners.end(); ++it)
			   {
            EventListenerDelegate listener = (*it);
            ENG_LOG("EventLoop", "\t\tSending event " + std::string(pEvent->GetName()) + " to delegate");
				listener(pEvent);
			   }
		   }

        // check to see if time ran out
		currMs = (unsigned long) ( GetGlobalTimer()->GetTime() * 1000.0 );
		if ( targetMs != IEventManager::kINFINITE && currMs >= targetMs )
         {
         ENG_LOG("EventLoop", "Aborting event processing; time ran out");
		   break;
         }
	   }
	
	// If we couldn't process all of the events, push the remaining events to the new active queue.
	// Note: To preserve sequencing, go back-to-front, inserting them at the head of the active queue
	bool queueFlushed = ( m_EventQueues[queueToProcess].empty() );
	if ( !queueFlushed )
	   {
		while (!m_EventQueues[queueToProcess].empty())
		   {
			IEventPtr pEvent = m_EventQueues[queueToProcess].back();
			m_EventQueues[queueToProcess].pop_back();
			m_EventQueues[m_ActiveQueue].push_front(pEvent);
		   }
	   }
	
	return queueFlushed;
   }