private void CheckTopics()
{
if (Interlocked.Exchange(ref _gcRunning, 1) == 1)
{
return;
}
foreach (var pair in Topics)
{
if (pair.Value.IsExpired)
{
// Only remove the topic if it's expired and we changed the state to dead
if (Interlocked.CompareExchange(ref pair.Value.State,
Topic.TopicState.Dead,
Topic.TopicState.NoSubscriptions) == Topic.TopicState.NoSubscriptions)
{
Topic topic;
Topics.TryRemove(pair.Key, out topic);
_stringMinifier.RemoveUnminified(pair.Key);
Trace.TraceInformation("RemoveTopic(" + pair.Key + ")");
}
}
}
Interlocked.Exchange(ref _gcRunning, 0);
}
private void DestroyTopicCore(string key, Topic topic)
{
Topics.TryRemove(key);
_stringMinifier.RemoveUnminified(key);
Counters.MessageBusTopicsCurrent.Decrement();
Trace.TraceInformation("RemoveTopic(" + key + ")");
if (AfterTopicGarbageCollected != null)
{
AfterTopicGarbageCollected(key, topic);
}
}
