/// <summary>
/// Calling constructor.
/// </summary>
/// <param name="stack">Reference to SIP stack.</param>
/// <param name="sender">Initial INVITE sender.</param>
/// <param name="session">Call RTP multimedia session.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>stack</b>,<b>sender</b> or <b>session</b> is null reference.</exception>
internal SIP_Call(SIP_Stack stack, SIP_RequestSender sender, RTP_MultimediaSession session)
{
if (stack == null)
{
throw new ArgumentNullException("stack");
}
if (sender == null)
{
throw new ArgumentNullException("sender");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
m_pStack = stack;
m_pInitialInviteSender = sender;
m_pRtpMultimediaSession = session;
m_pTags = new Dictionary <string, object>();
m_pInitialInviteSender.Completed += new EventHandler(delegate(object s, EventArgs e){
m_pInitialInviteSender = null;
if (this.State == SIP_CallState.Terminating)
{
SetState(SIP_CallState.Terminated);
}
});
m_CallState = SIP_CallState.Calling;
}
/// <summary>
/// Raises <b>StateChanged</b> event.
/// </summary>
/// <param name="state">New call state.</param>
private void OnStateChanged(SIP_CallState state)
{
if (this.StateChanged != null)
{
this.StateChanged(this, new EventArgs());
}
}
/// <summary>
/// Calling constructor.
/// </summary>
/// <param name="stack">Reference to SIP stack.</param>
/// <param name="sender">Initial INVITE sender.</param>
/// <param name="session">Call RTP multimedia session.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>stack</b>,<b>sender</b> or <b>session</b> is null reference.</exception>
internal SIP_Call(SIP_Stack stack,SIP_RequestSender sender,RTP_MultimediaSession session)
{
if(stack == null){
throw new ArgumentNullException("stack");
}
if(sender == null){
throw new ArgumentNullException("sender");
}
if(session == null){
throw new ArgumentNullException("session");
}
m_pStack = stack;
m_pInitialInviteSender = sender;
m_pRtpMultimediaSession = session;
m_pTags = new Dictionary<string,object>();
m_pInitialInviteSender.Completed += new EventHandler(delegate(object s,EventArgs e){
m_pInitialInviteSender = null;
if(this.State == SIP_CallState.Terminating){
SetState(SIP_CallState.Terminated);
}
});
m_CallState = SIP_CallState.Calling;
}
/// <summary>
/// Set call state.
/// </summary>
/// <param name="state">New call state.</param>
private void SetState(SIP_CallState state)
{
// Disposed call may not change state.
if (this.State == SIP_CallState.Disposed)
{
return;
}
m_CallState = state;
OnStateChanged(state);
if (state == SIP_CallState.Terminated)
{
Dispose();
}
}
/// <summary>
/// Raises <b>StateChanged</b> event.
/// </summary>
/// <param name="state">New call state.</param>
private void OnStateChanged(SIP_CallState state)
{
if (this.StateChanged != null)
{
this.StateChanged(this, new EventArgs());
}
}
/// <summary>
/// Set call state.
/// </summary>
/// <param name="state">New call state.</param>
private void SetState(SIP_CallState state)
{
// Disposed call may not change state.
if (this.State == SIP_CallState.Disposed)
{
return;
}
m_CallState = state;
OnStateChanged(state);
if (state == SIP_CallState.Terminated)
{
Dispose();
}
}
