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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#if !NO_PERF
using System;
using System.Reactive.Concurrency;
namespace System.Reactive.Linq.ObservableImpl
{
class DelaySubscription<TSource> : Producer<TSource>
{
private readonly IObservable<TSource> _source;
private readonly DateTimeOffset? _dueTimeA;
private readonly TimeSpan? _dueTimeR;
private readonly IScheduler _scheduler;
public DelaySubscription(IObservable<TSource> source, DateTimeOffset dueTime, IScheduler scheduler)
{
_source = source;
_dueTimeA = dueTime;
_scheduler = scheduler;
}
public DelaySubscription(IObservable<TSource> source, TimeSpan dueTime, IScheduler scheduler)
{
_source = source;
_dueTimeR = dueTime;
_scheduler = scheduler;
}
protected override IDisposable Run(IObserver<TSource> observer, IDisposable cancel, Action<IDisposable> setSink)
{
var sink = new _(observer, cancel);
setSink(sink);
if (_dueTimeA.HasValue)
{
return _scheduler.Schedule(sink, _dueTimeA.Value, Subscribe);
}
else
{
return _scheduler.Schedule(sink, _dueTimeR.Value, Subscribe);
}
}
private IDisposable Subscribe(IScheduler _, _ sink)
{
return _source.SubscribeSafe(sink);
}
class _ : Sink<TSource>, IObserver<TSource>
{
public _(IObserver<TSource> observer, IDisposable cancel)
: base(observer, cancel)
{
}
public void OnNext(TSource value)
{
base._observer.OnNext(value);
}
public void OnError(Exception error)
{
base._observer.OnError(error);
base.Dispose();
}
public void OnCompleted()
{
base._observer.OnCompleted();
base.Dispose();
}
}
}
}
#endif
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