37 lines
1.3 KiB
C#
37 lines
1.3 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace SimpleToolkit.Extensions
|
|
{
|
|
public static class StreamExtensions
|
|
{
|
|
public static async Task CopyToAsync(this Stream source, Stream destination, int bufferSize, IProgress<long> progress = null, CancellationToken cancellationToken = default)
|
|
{
|
|
ArgumentNullException.ThrowIfNull(source);
|
|
if (!source.CanRead)
|
|
{
|
|
throw new ArgumentException("Has to be readable", nameof(source));
|
|
}
|
|
ArgumentNullException.ThrowIfNull(destination);
|
|
if (!destination.CanWrite)
|
|
{
|
|
throw new ArgumentException("Has to be writable", nameof(destination));
|
|
}
|
|
ArgumentOutOfRangeException.ThrowIfNegative(bufferSize);
|
|
|
|
var buffer = new byte[bufferSize];
|
|
long totalBytesRead = 0;
|
|
int bytesRead;
|
|
while ((bytesRead = await source.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false)) != 0)
|
|
{
|
|
await destination.WriteAsync(buffer, 0, bytesRead, cancellationToken).ConfigureAwait(false);
|
|
totalBytesRead += bytesRead;
|
|
progress?.Report(totalBytesRead);
|
|
}
|
|
}
|
|
}
|
|
}
|