Stream.CopyTo - How do I get the sent Bytes?

Question

I try to get the transfer speed at a ftp-upload, but I don\'t know where I should \"get\" it:

Code-Snippet:

FtpWebRequest requ         


        

Answer 1

You already have a CopyStream method, just need to improve performance. BufferedStream is great for this. See below.

I believe You can also improve it further by using the Async methods in .net 4.

public static void CopyStream(Stream input, Stream output, Action totalSent)
{
    BufferedStream inputBuffer = new BufferedStream(input);
    BufferedStream outputBuffer = new BufferedStream(output);
    byte[] buffer = new byte[32768];
    int read;
    int total = 0;
    while ((read = inputBuffer.Read(buffer, 0, buffer.Length)) > 0)
    {
         outputBuffer.Write (buffer, 0, read);
         total += read;
         totalSent(total);
    }
    outputBuffer.Flush();
}