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using System.IO;
using System.Threading;
using System;
namespace MediaBrowser.Controller.IO
{
public static class StreamHelper
{
public static void CopyTo(Stream source, Stream destination, int bufferSize, CancellationToken cancellationToken)
{
CopyTo(source, destination, bufferSize, null, cancellationToken);
}
public static void CopyTo(Stream source, Stream destination, int bufferSize, Action onStarted, CancellationToken cancellationToken)
{
byte[] buffer = new byte[bufferSize];
int read;
while ((read = source.Read(buffer, 0, buffer.Length)) != 0)
{
cancellationToken.ThrowIfCancellationRequested();
destination.Write(buffer, 0, read);
if (onStarted != null)
{
onStarted();
onStarted = null;
}
}
}
}
}
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