Newbie: The best way to detect the end of a data stream...

[Phillip Hodges]

Hello all.. I am trying to construct a way of extracting data from a network stream. However I am running into a small problem. I am using regex to detect a pair of return & newlines "\r\n\r\n". However some of the messages received have "\r\n\r\n" in the middle of the stream. So some of the messages are cut off halfway. byte[] ami_response_buffer = new byte[ami_buffer_size]; MemoryStream ami_memory_stream = new MemoryStream(); string ami_response = ""; int ami_bytes_read = 0; do { ami_bytes_read = ami_client_stream.Read(ami_response_buffer, 0, ami_buffer_size); ami_memory_stream.Write(ami_response_buffer, 0, ami_bytes_read); ami_response = Encoding.ASCII.GetString(ami_memory_stream.GetBuffer()); // Check for end of message if (Regex.Match(ami_response, "\r\n\r\n", RegexOptions.IgnoreCase).Success) { ami_bytes_read = 0; } } while (ami_bytes_read > 0); return ami_response; What is the best way to detect the end of a data stream? Thanks in advance... Phil

"Rules are for the obedience of fools and the guidance of wise men"

[Nader Elshehabi]

Hello keep reading until NetworkStream.DataAvailable becomes false.

Regards:rose:

[Scott Dorman]

I'm assuming that "\r\n\r\n" is the marker you are trying to use to indicate the end of the stream. You would want to do something like this:

string ami_response = "";

// Check to see if this NetworkStream is readable.
if (ami_client_stream.CanRead)
{
byte[] ami_response_buffer = new byte[ami_buffer_size];
MemoryStream ami_memory_stream = new MemoryStream();
int ami_bytes_read = 0;

myCompleteMessage = new StringBuilder();

// Incoming message may be larger than the buffer size.
do
{
     ami\_bytes\_read = ami\_client\_stream.Read(ami\_response\_buffer, 0, ami\_response\_buffer.Length);
     myCompleteMessage.AppendFormat("{0}", Encoding.ASCII.GetString(ami\_response\_buffer, 0, ami\_bytes\_read));
                     
}
while (ami\_client\_stream.DataAvailable);

ami\_response = myCompleteMessage.ToString();

}

return ami_response;