/// <summary>
/// Subscribes an action to be executed for every action posted to the channel. Action should be thread safe.
/// Action may be invoked on multiple threads.
/// </summary>
/// <param name="subscriber"></param>
/// <param name="subscriptions"></param>
/// <returns></returns>
private IDisposable SubscribeOnProducerThreads(Action <T> subscriber, ISubscriptionRegistry subscriptions)
{
_subscribers += subscriber;
var unsubscriber = new Unsubscriber <T>(subscriber, this, subscriptions);
subscriptions.RegisterSubscription(unsubscriber);
return(unsubscriber);
}
private IDisposable Subscribe(Action action, ISubscriptionRegistry subscriptionRegistery)
{
Monitor.Enter(syncRoot);
try
{
this.Add(action);
}
finally
{
Monitor.Exit(syncRoot);
}
var subscriptionDisposable = new EventSubscriptionDisposable(action, this, subscriptionRegistery);
subscriptionRegistery.RegisterSubscription(subscriptionDisposable);
return(subscriptionDisposable);
}