internal void RegisterChild(IDataflowDependency childMeta, bool allowDuplicate)
{
var child = childMeta.Unwrap();
if (m_children.Any(cm => object.ReferenceEquals(cm.Unwrap(), child)))
{
if (allowDuplicate)
{
LogHelper.Logger.DebugFormat("Duplicate child registration ignored in {0}: {1}", this.FullName, childMeta.DisplayName);
return;
}
else
{
throw new ArgumentException("Duplicate child to register in " + this.FullName);
}
}
m_children = m_children.Add(childMeta);
if (!m_completionTask.IsValueCreated)
{
//eagerly initialize completion task
//would look better if Lazy<T> provides an EagerEvaluate() method
var t = m_completionTask.Value;
}
}
