source: trunk/source/visualization/FukuiRenderer/src/G4FukuiRenderer.cc @ 834

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// $Id: G4FukuiRenderer.cc,v 1.9 2006/06/29 21:16:58 gunter Exp $
// GEANT4 tag $Name:  $
//
// 
// Satoshi TANAKA
// FukuiRenderer factory.

//=================//
#ifdef G4VIS_BUILD_DAWN_DRIVER
//=================//

//#define DEBUG_FR_SYSTEM


#include "G4FukuiRenderer.hh"

#define __G_ANSI_C__

//#include "G4VisFeaturesOfFukuiRenderer.hh"
#include "G4VSceneHandler.hh"
#include "G4FukuiRendererSceneHandler.hh"
#include "G4FukuiRendererViewer.hh"
#include "G4FRClientServer.hh"
#include "G4FRConst.hh"
#include "G4FRFeatures.hh"

        //----- constant
const int FR_DEFAULT_CONNECTION_TIME = 5  ;
const char FR_ENV_CONNECTION_TIME [] = "G4DAWN_CONNECTION_TIME";
const char FR_ENV_DAWN_GUI_ALWAYS [] = "G4DAWN_GUI_ALWAYS";

        //----- G4FukuiRenderer, constructor
G4FukuiRenderer::G4FukuiRenderer ():
  G4VGraphicsSystem ("FukuiRenderer",
                     "DAWN",
                     FR_DAWNFILE_FEATURES,
                     G4VGraphicsSystem::threeD),
  fPrimDest() ,
  fIPMode( G4FukuiRenderer::IP_UNIX ),
  flag_use_gui     (false) ,
  flag_connected   (0) 
{
                //----- sorting of objects
        if( ( getenv( FR_ENV_DAWN_GUI_ALWAYS ) != NULL        ) && \
            ( strcmp( getenv( FR_ENV_DAWN_GUI_ALWAYS ),"0"  ) )      ) 
        {
                flag_use_gui =  true ;
        } 
}


        //----- G4FukuiRenderer, destructor
G4FukuiRenderer::~G4FukuiRenderer () 
{
        if( flag_connected ) {
                        //----- Terminate FukuiRenderer
                fPrimDest.SendLine( FR_TERMINATE_DAWND ) ; 

                        //----- disconnection
                fPrimDest.DisConnect(); 
                flag_connected = 0 ;
        }
}

        //-----  G4FukuiRenderer::CreateSceneHandler () 
G4VSceneHandler* G4FukuiRenderer::CreateSceneHandler (const G4String& name) 
{
        G4VSceneHandler* p = new G4FukuiRendererSceneHandler (*this, name);

        if(!flag_connected) { delete p ;  p = NULL ; }

        return p;
}

        //-----  G4FukuiRenderer::CreateViewer () 
G4VViewer* G4FukuiRenderer::CreateViewer (G4VSceneHandler& scene, const G4String& name) 
{
        if(!flag_connected) return NULL;
        G4VViewer* pView = 
          new G4FukuiRendererViewer ((G4FukuiRendererSceneHandler&) scene, name);
        return pView;
}

        //----- G4FukuiRenderer::UseInetDomainAuto()
void G4FukuiRenderer::UseInetDomainAuto()
{
        int             pid ;

#if defined DEBUG_FR_SYSTEM
        G4cerr << "***** Unix Inet Domain (AUTO mode)" << G4endl;
#endif
        fIPMode = G4FukuiRenderer::IP_UNIX ;

        if( ( pid = fork() ) == 0 ) { // child
                if ( execlp ( "dawn", "dawn", "-G" , (char *)0 ) < 0 ) 
                {
                        perror("dawn") ;
                }
        } else { // parent 

                        //----- Set waiting time to ensure connection
                int connection_time = FR_DEFAULT_CONNECTION_TIME  ;
                if( getenv( FR_ENV_CONNECTION_TIME ) != NULL  ) {
                        int sscanf_status = \
                                sscanf( getenv( FR_ENV_CONNECTION_TIME ), "%d", &connection_time) ;
                        if ( sscanf_status == EOF ) {  
                          connection_time = FR_DEFAULT_CONNECTION_TIME  ;
                        }
                }


                        //----- Wait for starting up of FukuiRenderer
                sleep(connection_time); 

                        //----- establish connection
                this->ConnectPort();
        }

        if(!flag_connected) { 
          G4cerr << "***** ERROR: Connection failed" << G4endl; 
        }
        else { 
          G4cerr << "***** GEANT4 is connected to FukuiRenderer DAWN ";
          G4cerr << "in the same host" << G4endl; 
        }

} //  G4FukuiRenderer::UseInetDomainAuto()


        //----- G4FukuiRenderer::UseInetDomain()
void
G4FukuiRenderer::UseInetDomain()
{
#if defined DEBUG_FR_SYSTEM
        G4cerr << "***** INET Domain " << G4endl;
#endif
        fIPMode = G4FukuiRenderer::IP_INET ;

        this->ConnectPort();

        if(!flag_connected) {
          G4cerr << "***** ERROR: Connection failed" << G4endl; 
        }
        else { 
          G4cerr << "GEANT4 is connected to FukuiRenderer DAWN via socket" ; 
          G4cerr << G4endl; 
        }

} // G4FukuiRenderer::UseInetDomain()

void
G4FukuiRenderer::ConnectPort( int max_port_incr )
{
        //----- establish connection
  int connect_trial = 0 ;
  while(1) {
    if ( ++connect_trial > max_port_incr ) {
        this->flag_connected = 0 ;
        G4cerr << "***** INET Connection failed."                << G4endl;
        G4cerr << "      Maybe, you have not invoked DAWN yet,"  << G4endl;
        G4cerr << "      or too many DAWN's are already running" << G4endl;
        G4cerr << "      in the server host."                    << G4endl;
        fPrimDest.IncrementPortNumber( (- FR_MAX_PORT_INCR) );
        return ;
    } else if ( fPrimDest.ConnectINET() ) { 
            // INET domain connection is established
        this->flag_connected = 1 ;
        G4cerr << "***** GEANT4 is connected to port  " ;
        G4cerr << fPrimDest.GetPortNumber() ; 
        G4cerr << "  of server" << G4endl;
        break ; 
    } else { 
            // Connection failed. Try the next port.
      this->flag_connected = 0 ;
      fPrimDest.IncrementPortNumber();
      G4cerr << "***** GEANT4 incremented targeting port to " ;
      G4cerr << fPrimDest.GetPortNumber() << G4endl;

    } // if-elseif-else

  } // while (1) 
}


        //----- G4FukuiRenderer::UseBSDUnixDomainAuto()
void G4FukuiRenderer::UseBSDUnixDomainAuto()
{
        int     pid ;

#if defined DEBUG_FR_SYSTEM
        G4cerr << "***** UseBSDUnixDomainAuto " << G4endl;
#endif
        fIPMode = G4FukuiRenderer::IP_UNIX ; // Unix domain

        if( ( pid = fork() ) == 0 ) { // child
                if ( execlp ( "dawn", "dawn", "-g" , (char *)0 ) < 0 ) 
                {
                        perror("dawn") ;
                }
        } else { // parent 

                        //----- Sleep for a while to make sure that 
                        //..... FukuiRenderer is ready
                int connection_time = FR_DEFAULT_CONNECTION_TIME  ;
                if( getenv( FR_ENV_CONNECTION_TIME ) != NULL  ) {
                        int sscanf_status = \
                                sscanf( getenv( FR_ENV_CONNECTION_TIME ), "%d", &connection_time) ;
                        if ( sscanf_status == EOF ) {  connection_time = FR_DEFAULT_CONNECTION_TIME  ;}
                }
                sleep(connection_time); 

                        //----- connect GEANT4 to FukuiRenderer
                this->flag_connected = fPrimDest.ConnectUnix();

                        //----- display status
                if(!flag_connected) {
                  G4cerr << "***** ERROR: Connection failed" << G4endl; 
                } else { 
                  G4cerr << "*** GEANT4 is connected to FukuiRenderer DAWN ";
                  G4cerr <<  "in the same host" << G4endl; 
                }

        } // if--else

}// G4FukuiRenderer::UseBSDUnixDomainAuto()


#endif // G4VIS_BUILD_DAWN_DRIVER