public ChooseTarget(ChooserBlock <T1, T2, T3> chooserBlock,
int index, Action <TMessage> action)
{
this.chooserBlock = chooserBlock;
this.index = index;
this.action = action;
}
public static Task<int> Choose<T1, T2, T3> (
ISourceBlock<T1> source1, Action<T1> action1,
ISourceBlock<T2> source2, Action<T2> action2,
ISourceBlock<T3> source3, Action<T3> action3,
DataflowBlockOptions dataflowBlockOptions)
{
if (source1 == null)
throw new ArgumentNullException ("source1");
if (source2 == null)
throw new ArgumentNullException ("source2");
if (source3 == null)
throw new ArgumentNullException ("source3");
if (action1 == null)
throw new ArgumentNullException ("action1");
if (action2 == null)
throw new ArgumentNullException ("action2");
if (action3 == null)
throw new ArgumentNullException ("action3");
if (dataflowBlockOptions == null)
throw new ArgumentNullException ("dataflowBlockOptions");
var chooser = new ChooserBlock<T1, T2, T3> (action1, action2, action3, dataflowBlockOptions);
source1.LinkTo (chooser.Target1);
source2.LinkTo (chooser.Target2);
source3.LinkTo (chooser.Target3);
Task.WhenAll (source1.Completion, source2.Completion, source3.Completion)
.ContinueWith (_ => chooser.AllSourcesCompleted ());
return chooser.Completion;
}
