<PackageReference Include="System.Reactive" Version="4.3.2" />

Synchronize<TSource>

sealed class Synchronize<TSource> : Producer<TSource, _<TSource>>
namespace System.Reactive.Concurrency { internal sealed class Synchronize<TSource> : Producer<TSource, Synchronize<TSource>._> { internal sealed class _ : IdentitySink<TSource> { private readonly object _gate; public _(Synchronize<TSource> parent, IObserver<TSource> observer) : base(observer) { _gate = (parent._gate ?? new object()); } public override void OnNext(TSource value) { lock (_gate) { ForwardOnNext(value); } } public override void OnError(Exception error) { lock (_gate) { ForwardOnError(error); } } public override void OnCompleted() { lock (_gate) { ForwardOnCompleted(); } } } private readonly IObservable<TSource> _source; private readonly object _gate; public Synchronize(IObservable<TSource> source, object gate) { _source = source; _gate = gate; } public Synchronize(IObservable<TSource> source) { _source = source; } protected override _ CreateSink(IObserver<TSource> observer) { return new _(this, observer); } protected override void Run(_ sink) { sink.Run(_source); } } }