/// <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>
/// Creates new flow from TCP server session.
/// </summary>
/// <param name="session">TCP server session.</param>
/// <returns>Returns created flow.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>session</b> is null reference.</exception>
internal SIP_Flow CreateFromSession(TCP_ServerSession session)
{
if (session == null)
{
throw new ArgumentNullException("session");
}
string flowID = session.LocalEndPoint + "-" + session.RemoteEndPoint + "-" +
(session.IsSecureConnection ? SIP_Transport.TLS : SIP_Transport.TCP);
lock (m_pLock)
{
SIP_Flow flow = new SIP_Flow(m_pOwner.Stack, session);
m_pFlows.Add(flowID, flow);
flow.IsDisposing += delegate
{
lock (m_pLock)
{
m_pFlows.Remove(flowID);
}
};
flow.Start();
return flow;
}
}
