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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.Threading;
namespace System.Reactive.Linq.ObservableImpl
{
class ForEach<TSource>
{
public class _ : IObserver<TSource>
{
private readonly Action<TSource> _onNext;
private readonly Action _done;
private Exception _exception;
private int _stopped;
public _(Action<TSource> onNext, Action done)
{
_onNext = onNext;
_done = done;
_stopped = 0;
}
public Exception Error
{
get { return _exception; }
}
public void OnNext(TSource value)
{
if (_stopped == 0)
{
try
{
_onNext(value);
}
catch (Exception ex)
{
OnError(ex);
}
}
}
public void OnError(Exception error)
{
if (Interlocked.Exchange(ref _stopped, 1) == 0)
{
_exception = error;
_done();
}
}
public void OnCompleted()
{
if (Interlocked.Exchange(ref _stopped, 1) == 0)
{
_done();
}
}
}
public class ForEachImpl : IObserver<TSource>
{
private readonly Action<TSource, int> _onNext;
private readonly Action _done;
private int _index;
private Exception _exception;
private int _stopped;
public ForEachImpl(Action<TSource, int> onNext, Action done)
{
_onNext = onNext;
_done = done;
_index = 0;
_stopped = 0;
}
public Exception Error
{
get { return _exception; }
}
public void OnNext(TSource value)
{
if (_stopped == 0)
{
try
{
_onNext(value, checked(_index++));
}
catch (Exception ex)
{
OnError(ex);
}
}
}
public void OnError(Exception error)
{
if (Interlocked.Exchange(ref _stopped, 1) == 0)
{
_exception = error;
_done();
}
}
public void OnCompleted()
{
if (Interlocked.Exchange(ref _stopped, 1) == 0)
{
_done();
}
}
}
}
}
#endif
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