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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Threading;
namespace System.ComponentModel.Composition.ReflectionModel
{
internal sealed class DisposableReflectionComposablePart : ReflectionComposablePart, IDisposable
{
private volatile int _isDisposed;
public DisposableReflectionComposablePart(ReflectionComposablePartDefinition definition)
: base(definition)
{
}
protected override void ReleaseInstanceIfNecessary(object? instance)
{
if (instance is IDisposable disposable)
{
disposable.Dispose();
}
}
protected override void EnsureRunning()
{
base.EnsureRunning();
if (_isDisposed == 1)
{
throw ExceptionBuilder.CreateObjectDisposed(this);
}
}
void IDisposable.Dispose()
{
if (Interlocked.CompareExchange(ref _isDisposed, 1, 0) == 0)
{
ReleaseInstanceIfNecessary(CachedInstance);
}
}
}
}
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