/// <summary>
/// use two thread to read/write stream.
/// this method was testing, no not use to release.
/// </summary>
/// <param name="stream"></param>
/// <param name="destination"></param>
/// <param name="bufferSize"></param>
/// <param name="progressChangedWatcher"></param>
/// <param name="poolSize"></param>
/// <returns></returns>
public static async Task DoubleThreadCopyToAsync(this Stream stream, Stream destination, int bufferSize,
IObserver <long> progressChangedWatcher, int poolSize = 20)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (bufferSize <= 0)
{
throw new ArgumentOutOfRangeException($"{nameof(bufferSize)} must >= 0.");
}
if (progressChangedWatcher == null)
{
throw new ArgumentNullException(nameof(progressChangedWatcher));
}
if (poolSize <= 0)
{
throw new ArgumentOutOfRangeException($"{nameof(poolSize)} must > 0.");
}
using (var copyer = new DoubleThreadStreamCopyer(stream, destination, bufferSize, poolSize, progressChangedWatcher))
await copyer.Start();
}
/// <summary>
/// use two thread to read/write stream.
/// this method was testing, no not use to release.
/// </summary>
/// <param name="stream"></param>
/// <param name="destination"></param>
/// <param name="bufferSize"></param>
/// <param name="progressChangedWatcher"></param>
/// <param name="poolSize"></param>
/// <returns></returns>
public static async Task DoubleThreadCopyToAsync(this Stream stream, Stream destination, int bufferSize,
IObserver<long> progressChangedWatcher, int poolSize = 20)
{
if (stream == null) throw new ArgumentNullException(nameof(stream));
if (destination == null) throw new ArgumentNullException(nameof(destination));
if (bufferSize <= 0) throw new ArgumentOutOfRangeException($"{nameof(bufferSize)} must >= 0.");
if (progressChangedWatcher == null) throw new ArgumentNullException(nameof(progressChangedWatcher));
if (poolSize <= 0) throw new ArgumentOutOfRangeException($"{nameof(poolSize)} must > 0.");
using (var copyer = new DoubleThreadStreamCopyer(stream, destination, bufferSize, poolSize, progressChangedWatcher))
await copyer.Start();
}
