/// <summary>
/// When the timer fires, check for the state of the adapter; if running
/// raise a new simulated event
/// </summary>
/// <param name="state"></param>
private void RaiseEvent(object state)
{
// Ensure that the adapter is in the running state. If we're
// shutting down, kill the timer and signal Stopped()
if (AdapterState.Stopping == AdapterState)
{
myTimer.Dispose();
Stopped();
}
if (AdapterState.Running != AdapterState)
{
return;
}
// Allocate a point event to hold the data for the incoming message.
// If the event could not be allocated, exit the function
lock (lockObj)
{
PointEvent <TPayload> currEvent = CreateInsertEvent();
if (currEvent == null)
{
return;
}
currEvent.StartTime = DateTime.Now;
// Create a payload object, and fill with values if we have a
// an initializer defined
currEvent.Payload = (TPayload)Activator.CreateInstance(typeof(TPayload));
if (init != null)
{
init.FillValues(currEvent.Payload);
}
if (trace.ShouldLog(TraceEventType.Verbose))
{
trace.LogMsg(TraceEventType.Verbose, "INSERT - {0}",
currEvent.FormatEventForDisplay(false));
}
// If the event cannot be enqueued, release the memory and signal that
// the adapter is ready to process more events (via. Ready())
if (EnqueueOperationResult.Full == Enqueue(ref currEvent))
{
ReleaseEvent(ref currEvent);
Ready();
}
}
// The next event will be raised at now + event period ms, plus a
// random offset
int nextEventInterval = config.EventPeriod +
rand.Next(config.EventPeriodRandomOffset);
myTimer.Change(nextEventInterval, nextEventInterval);
}
/// <summary>
/// Main worker thread function responsible for dequeueing events and
/// posting them to the output stream.
/// </summary>
private void ConsumeEvents()
{
PointEvent currentEvent = default(PointEvent);
try
{
while (true)
{
if (AdapterState.Stopping == AdapterState)
{
Stopped();
return;
}
// Dequeue the event. If the dequeue fails, then the adapter state is suspended
// or stopping. Assume the former and call Ready() to indicate
// readiness to be resumed, and exit the thread.
if (DequeueOperationResult.Empty == Dequeue(out currentEvent))
{
Ready();
return;
}
string writeMsg = String.Empty;
if (currentEvent.EventKind == EventKind.Insert)
{
writeMsg = currentEvent.FormatEventForDisplay(eventType,
!config.SingleLine);
}
else if (currentEvent.EventKind == EventKind.Cti)
{
writeMsg = String.Format("CTI - {0}",
currentEvent.StartTime.ToString("hh:mm:ss.fff"));
}
if (config.Target == TraceTarget.Console)
{
Console.WriteLine(writeMsg);
}
else if (config.Target == TraceTarget.Debug)
{
Debug.Write(writeMsg);
}
// Every received event needs to be released.
ReleaseEvent(ref currentEvent);
}
}
catch (Exception e)
{
trace.LogException(e, "Error in console adapter dequeue");
}
}