/// <summary>
/// Starts flow processing.
/// </summary>
internal void Start()
{
// Move processing to thread pool.
AutoResetEvent startLock = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(new WaitCallback(delegate(object state){
lock (m_pLock){
startLock.Set();
// TCP / TLS client, connect to remote end point.
if (!m_IsServer && m_Transport != SIP_Transport.UDP)
{
try{
TCP_Client client = new TCP_Client();
client.Connect(m_pLocalEP, m_pRemoteEP, m_Transport == SIP_Transport.TLS);
m_pTcpSession = client;
BeginReadHeader();
}
catch {
Dispose();
}
}
}
}));
startLock.WaitOne();
startLock.Close();
}
/// <summary>
/// Server TCP,TLS constructor.
/// </summary>
/// <param name="stack">Owner stack.</param>
/// <param name="session">TCP session.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>stack</b> or <b>session</b> is null reference.</exception>
internal SIP_Flow(SIP_Stack stack, TCP_ServerSession session)
{
if (stack == null)
{
throw new ArgumentNullException("stack");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
m_pStack = stack;
m_pTcpSession = session;
m_IsServer = true;
m_pLocalEP = session.LocalEndPoint;
m_pRemoteEP = session.RemoteEndPoint;
m_Transport = session.IsSecureConnection ? SIP_Transport.TLS : SIP_Transport.TCP;
m_CreateTime = DateTime.Now;
m_LastActivity = DateTime.Now;
m_ID = m_pLocalEP.ToString() + "-" + m_pRemoteEP.ToString() + "-" + m_Transport;
m_pMessage = new MemoryStream();
// Dispose flow when TCP server session closed.
session.Disposed += new EventHandler(delegate(object s, EventArgs e){
Dispose();
});
BeginReadHeader();
}
/// <summary>
/// Server TCP,TLS constructor.
/// </summary>
/// <param name="stack">Owner stack.</param>
/// <param name="session">TCP session.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>stack</b> or <b>session</b> is null reference.</exception>
internal SIP_Flow(SIP_Stack stack, TCP_Session session)
{
if (stack == null)
{
throw new ArgumentNullException("stack");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
m_pStack = stack;
m_pTcpSession = session;
m_IsServer = true;
m_pLocalEP = session.LocalEndPoint;
m_pRemoteEP = session.RemoteEndPoint;
m_Transport = session.IsSecureConnection ? SIP_Transport.TLS : SIP_Transport.TCP;
m_CreateTime = DateTime.Now;
m_LastActivity = DateTime.Now;
m_ID = m_pLocalEP + "-" + m_pRemoteEP + "-" + m_Transport;
m_pMessage = new MemoryStream();
BeginReadHeader();
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
public void Dispose()
{
lock (m_pLock){
if (m_IsDisposed)
{
return;
}
OnDisposing();
m_IsDisposed = true;
if (m_pTcpSession != null)
{
m_pTcpSession.Dispose();
m_pTcpSession = null;
}
m_pMessage = null;
if (m_pKeepAliveTimer != null)
{
m_pKeepAliveTimer.Dispose();
m_pKeepAliveTimer = null;
}
}
}
/// <summary>
/// Starts flow processing.
/// </summary>
internal void Start()
{
// Move processing to thread pool.
AutoResetEvent startLock = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(delegate
{
lock (m_pLock)
{
startLock.Set();
// TCP / TLS client, connect to remote end point.
if (!m_IsServer && m_Transport != SIP_Transport.UDP)
{
try
{
TCP_Client client = new TCP_Client();
client.Connect(m_pLocalEP,
m_pRemoteEP,
m_Transport == SIP_Transport.TLS);
m_pTcpSession = client;
BeginReadHeader();
}
catch
{
Dispose();
}
}
}
});
startLock.WaitOne();
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
public void Dispose()
{
lock (m_pLock)
{
if (m_IsDisposed)
{
return;
}
OnDisposing();
m_IsDisposed = true;
if (m_pTcpSession != null)
{
m_pTcpSession.Dispose();
m_pTcpSession = null;
}
m_pMessage = null;
if (m_pKeepAliveTimer != null)
{
m_pKeepAliveTimer.Dispose();
m_pKeepAliveTimer = null;
}
}
}
/// <summary>
/// Server TCP,TLS constructor.
/// </summary>
/// <param name="stack">Owner stack.</param>
/// <param name="session">TCP session.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>stack</b> or <b>session</b> is null reference.</exception>
internal SIP_Flow(SIP_Stack stack, TCP_Session session)
{
if (stack == null)
{
throw new ArgumentNullException("stack");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
m_pStack = stack;
m_pTcpSession = session;
m_IsServer = true;
m_pLocalEP = session.LocalEndPoint;
m_pRemoteEP = session.RemoteEndPoint;
m_Transport = session.IsSecureConnection ? SIP_Transport.TLS : SIP_Transport.TCP;
m_CreateTime = DateTime.Now;
m_LastActivity = DateTime.Now;
m_ID = m_pLocalEP + "-" + m_pRemoteEP + "-" + m_Transport;
m_pMessage = new MemoryStream();
BeginReadHeader();
}
