protected override IStream <TOut> CreateOutputStream(SubProcessArgs <TIn, TOut> args)
{
if (this.ExecutionContext is GetDefinitionExecutionContext)
{
var inputStream = new SingleStream <TIn>(new SubNodeWrapper(this), PushObservable.FromSingle(default(TIn), args.Stream.Observable.CancellationToken));
var outputStream = args.SubProcess(inputStream);
// this.ExecutionContext.AddNode(this, outputStream.Observable);
}
Synchronizer synchronizer = new Synchronizer(args.NoParallelisation);
var outputObservable = args.Stream.Observable
.FlatMap((i, ct) =>
{
// TODO: Solve bug here (this operator makes the process freezing))
EventWaitHandle waitHandle = new EventWaitHandle(false, EventResetMode.ManualReset);
var inputStream = new SingleStream <TIn>(new SubNodeWrapper(this), PushObservable.FromSingle(i, waitHandle, ct));
var outputStream = args.SubProcess(inputStream);
// this.ExecutionContext.AddNode(this, outputStream.Observable);
IDisposable awaiter = null;
outputStream.Observable.Subscribe(j => { }, () => awaiter?.Dispose());
return(new DeferredWrapperPushObservable <TOut>(outputStream.Observable, () =>
{
awaiter = synchronizer.WaitBeforeProcess();
waitHandle.Set();
}, null, ct));
});
return(base.CreateUnsortedStream(outputObservable));
}
public SubProcessStreamNode(string name, SubProcessArgs <TIn, TOut> args) : base(name, args)
{
}