Method that returns number of bytes available in TCP/IP socket

socket.Available does not work. Why?

Instead of size I need to use socket.Available. But it does not work. So I need a method that returns the number of bytes in socket.

void Receive(Socket socket, byte[] buffer, int offset, int size)
{
    //int sockAvail = socket.Available;  Here socke开发者_StackOverflow中文版t.Available always asigns 0 to sockAvail
    int received = 0;

    do
    {
       try
       {
          received += socket.Receive(buffer, offset + received, size - received, SocketFlags.None);
       }
       catch (Exception e) 
       { 
          Console.WriteLine(e.Message); 
       }

    } while (received < size);

    MessageBox.Show(socket.Available.ToString());
 }

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Pass MSG_PEEK to recv().

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Socket.Available has to be called before the receive() into the buffer, otherwise it's always 0.

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socket.Available is for blocking sockets. With asynchronous reads, you just read what you can and then go back into a select to be told when it's ok to read more.

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It does work. It just doesn't meet your expectations. Your expectations are wrong. Adjust them.