public void queueEvent(NSFEvent nsfEvent)
{
lock (eventHandlerMutex)
{
// Do not allow events to be queued if terminating or terminated (i.e. not ready)
if (TerminationStatus != NSFEventHandlerTerminationStatus.EventHandlerReady)
{
return;
}
// Handle special case of terminate event by setting status and queuing a single terminate event.
// Terminate event must be the last event queued to guarantee safe deletion when it is handled.
if (nsfEvent == terminateEvent)
{
if (TerminationStatus == NSFEventHandlerTerminationStatus.EventHandlerReady)
{
TerminationStatus = NSFEventHandlerTerminationStatus.EventHandlerTerminating;
}
}
nsfEvent.Destination = this;
EventThread.queueEvent(nsfEvent, false, LoggingEnabled);
}
}
/// <summary>
/// Handles an event.
/// </summary>
/// <param name="nsfEvent">The event to handle.</param>
/// <returns>Status indicating if the event was handled or not.</returns>
/// <remarks>
/// This method is for use only by the North State Framework's internal logic.
/// It calls the actions associated with the event, if any.
/// </remarks>
public NSFEventStatus handleEvent(NSFEvent nsfEvent)
{
// Handle status changing events
if ((nsfEvent == startEvent))
{
RunStatus = NSFEventHandlerRunStatus.EventHandlerStarted;
}
else if (nsfEvent == stopEvent)
{
RunStatus = NSFEventHandlerRunStatus.EventHandlerStopped;
}
else if (nsfEvent == terminateEvent)
{
TerminationStatus = NSFEventHandlerTerminationStatus.EventHandlerTerminated;
EventThread.removeEventHandler(this);
return NSFEventStatus.NSFEventHandled;
}
// Don't process events if stopped
if (RunStatus == NSFEventHandlerRunStatus.EventHandlerStopped)
{
return NSFEventStatus.NSFEventUnhandled;
}
// Process the event
bool actionsToExecute = false;
lock (eventHandlerMutex)
{
if (eventReactions.ContainsKey(nsfEvent.Id))
{
actionsToExecute = true;
}
}
if (actionsToExecute)
{
eventReactions[nsfEvent.Id].execute(new NSFEventContext(this, nsfEvent));
return NSFEventStatus.NSFEventHandled;
}
else
{
return NSFEventStatus.NSFEventUnhandled;
}
}