/// <summary>
/// Sign up a subscriber to a value's events
/// </summary>
/// <param name="sub"></param>
public void Subscribe(ISubscriber <T> sub)
{
lock (_lock)
{
if (!SubscriberDictionaries.ContainsKey(sub.ValueName))
{
//Add the subscriber to listen for value changes.
SubscriberDictionaries.Add(sub.ValueName, null);
SubscriberDictionaries[sub.ValueName] += sub.OnValueChange;
}
else
{
SubscriberDictionaries[sub.ValueName] += sub.OnValueChange;
}
//Check if there is a default value yet.
if (!CurrentValues.ContainsKey(sub.ValueName))
{
CurrentValues.Add(sub.ValueName, _zeroValue);
}
//Set the value of the subscriber to the default via the built-in publish mechanism.
sub.OnValueChange(this, new PubSubEventArgs <T>(_zeroValue, CurrentValues[sub.ValueName]));
}
}
/// <summary>
/// Unsubscribe a sub from its value's events.
/// </summary>
/// <param name="sub"></param>
public void UnSubscribe(ISubscriber <T> sub)
{
lock (_lock)
{
if (SubscriberDictionaries.ContainsKey(sub.ValueName))
{
SubscriberDictionaries[sub.ValueName] -= sub.OnValueChange;
}
}
}