private void copyStream(FileSystemStream from, FileSystemStream to, byte[] buffer)
{
while (true)
{
var read = from.Read(buffer, 0, buffer.Length);
if (read <= 0)
{
break;
}
to.Write(buffer, 0, read);
}
}
protected internal virtual Task DoWriteAsync(FileSystemStream stream, byte[] buffer, int offset, int count, CancellationToken ct)
{
return(TaskUtils.AsCompletedTask(() => stream.Write(buffer, offset, count)));
}
protected internal virtual Task DoFlushAsync(FileSystemStream stream, CancellationToken cancellationToken)
{
return(TaskUtils.AsCompletedTask(stream.Flush));
}
