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STUN Client

, 20 Apr 2007 CPOL
STUN client C# implementation with sample application
Stun.zip
Stun
Net
docs
dns
dns_records.jpg
dns_records.vsd
Net
_junk
_Obsolete
_Stuff
AUTH
bin
Release
LumiSoft.Net.dll
Data
Dns
Client
FTP
Client
Server
HTTP
Server
ICMP
IMAP
Client
Server
IO
Log
LumiSoft.Net
Mime
vCard
Net.csproj.user
Net.suo
NNTP
Client
POP3
Client
Server
SDP
ServersCore
SIP
Client
Message
Proxy
Stack
SMTP
Client
Server
STUN
Client
Message
STUN_Client_app
STUN_Client_app.suo
STUN_Client_app
bin
Debug
LumiSoft.Net.dll
STUN_Client_app.exe
STUN_Client_app.vshost.exe
dep
LumiSoft.Net.dll
Properties
Settings.settings
using System;
using System.IO;
using System.Collections.Generic;
using System.Text;

namespace LumiSoft.Net
{   
    /// <summary>
    /// Implements buffered writer for socket.
    /// </summary>
    public class SocketBufferedWriter
    {
        private SocketEx     m_pSocket           = null;
        private int          m_BufferSize        = 8000;
        private byte[]       m_Buffer            = null;
        private int          m_AvailableInBuffer = 0;

        /// <summary>
        /// Default constructor.
        /// </summary>
        /// <param name="socket">Socket where to write data.</param>
        public SocketBufferedWriter(SocketEx socket)
        {
            m_pSocket = socket;

            m_Buffer = new byte[m_BufferSize];
        }


        #region method Flush

        /// <summary>
        /// Forces to send all data in buffer to destination host.
        /// </summary>
        public void Flush()
        {            
            if(m_AvailableInBuffer > 0){
                m_pSocket.Write(m_Buffer,0,m_AvailableInBuffer);
                m_AvailableInBuffer = 0;
            }
        }

        #endregion

        #region method Write

        /// <summary>
        /// Queues specified data to write buffer. If write buffer is full, buffered data will be sent to detination host.
        /// </summary>
        /// <param name="data">Data to queue.</param>
        public void Write(string data)
        {
            Write(System.Text.Encoding.UTF8.GetBytes(data));
        }

        /// <summary>
        /// Queues specified data to write buffer. If write buffer is full, buffered data will be sent to detination host.
        /// </summary>
        /// <param name="data">Data to queue.</param>
        public void Write(byte[] data)
        {
            // There is no room to accomodate data to buffer
            if((m_AvailableInBuffer + data.Length) > m_BufferSize){
                // Send buffer data
                m_pSocket.Write(m_Buffer,0,m_AvailableInBuffer);
                m_AvailableInBuffer = 0;

                // Store new data to buffer
                if(data.Length < m_BufferSize){
                    Array.Copy(data,m_Buffer,data.Length);
                    m_AvailableInBuffer = data.Length;
                }
                // Buffer is smaller than data, send it directly
                else{
                    m_pSocket.Write(data);
                }
            }
            // Store data to buffer
            else{
                Array.Copy(data,0,m_Buffer,m_AvailableInBuffer,data.Length);
                m_AvailableInBuffer += data.Length;
            }
        }

        #endregion

    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Ivar Lumi

Estonia Estonia
No Biography provided

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