sip_idel_state.hxx.~2~

模拟移动客户端软件飞信登录的状态机器定义代码。

//====================================================================
//                
// Copyright (C) 2006-2007,  Frank.Ning
//                
// Filename:      sip_idel_state.hxx
// Author:        Frank.Ning <[e-mail]>
// Description:   
//                
// $Id:$
//                
//====================================================================
#ifndef __SIP_IDEL_STATE_HXX__
#define __SIP_IDEL_STATE_HXX__

#include "state.hxx"

static const char* const sip_idel_state_hxx_version =
   "$Id:$";

struct sip_idel_state : public fsm::state<sip_idel_state, FetionStateList, bool>
{
      bool on_process( shared_ptr<event> evt )
      {
         shared_ptr<sip_event> sip_evt;

         sip_evt.reset( evt );

         if( !sip_evt )
            return false ;

         shared_ptr<sip_msg> msg;

         msg.reset( sip_evt->get_msg( ) );

         if( !msg )
            return true ;

         shared_ptr<sip_cmd> cmd;
         cmd.reset( msg );

         if( cmd )
            return on_process( cmd );

         shared_ptr<sip_status> status ;

         status.reset( msg );

         if( status )
            return on_process( status );

         return false ;
      }

      bool on_process( shared_ptr<sip_cmd> cmd )
      {
         ua_callctl& ua = ua_callctl::instance( );

         ua.set_last_sip_cmd( cmd );
         ua.get_sip_channel( )->add( cmd );
         
         string method = cmd->get_method( );

         switch( method )
         {
            case "R":
            case "REGISTER":
               switch_to<sip_register_state>( );
               break ;
               
            case "I":
            case "INVITE":
               switch_to<sip_invite_state>( );
               break;
               
            default:
               // no support method
               break ;
         }

         return true ;
      }

      bool on_process( shared_ptr<sip_status> status )
      {
         // there is no status to process
         ua_callctl::instance( ).set_last_sip_status( status );
         return true ;
      }

};

#endif