static void PerformSubscribe(object subscriber, string identifier, Type argType, Action <object> callback)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (identifier == null)
{
throw new ArgumentNullException(nameof(identifier));
}
if (callback == null)
{
throw new ArgumentNullException(nameof(callback));
}
var key = new MessageSignature(identifier, argType);
var value = new MessageSubscription(subscriber, callback);
if (Callbacks.ContainsKey(key))
{
Callbacks [key].Add(value);
}
else
{
Callbacks [key] = new List <MessageSubscription> {
value
};
}
}
static void PerformUnsubscribe(object subscriber, string identifier, Type argType)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (identifier == null)
{
throw new ArgumentNullException(nameof(identifier));
}
var key = new MessageSignature(identifier, argType);
if (!Callbacks.ContainsKey(key))
{
return;
}
if (Callbacks [key].Any())
{
var deleted = new List <MessageSubscription> ();
while (Callbacks.TryRemove(key, out deleted))
{
}
}
}
static void PerformSend(string identifier, Type argType, object args)
{
if (identifier == null)
{
throw new ArgumentNullException(nameof(identifier));
}
var key = new MessageSignature(identifier, argType);
if (!Callbacks.ContainsKey(key))
{
return;
}
var actions = Callbacks [key];
if (actions == null || !actions.Any())
{
return;
}
foreach (var action in actions)
{
if (action.Item1.Target != null && actions.Contains(action))
{
action.Item2(args);
}
}
}