G4ApplicationState.hh

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//
// $Id: G4ApplicationState.hh 67970 2013-03-13 10:10:06Z gcosmo $
//

#ifndef G4APPLICATIONSTATE_H
#define G4APPLICATIONSTATE_H 1

// Class Description:
//
// Specifies the state of the G4 application
//
// States:
//  G4State_PreInit
//    At the very begining of the Application. G4StateManager starts
//    with this state. G4Initializer changes this state to Init when
//    G4Initializer::Initialize() method starts. At the moment of
//    the state change of PreInit->Init, no material, geometrical,
//    particle or physics process has been initialized.
//  G4State_Init
//    During the G4Initializer::Initialize() method. G4Initializer
//    changes this state to Idle when all initialization procedures
//    are successfully Done.
//  G4State_Idle
//    Ready to start "BeamOn". G4RunManager changes this state to
//    GeomClosed when G4RunManager::BeamOn() method starts and
//    G4GeometryManager::CloseGeometry() is Done. At the end of
//    BeamOn() method, G4RunManager will reset the application state
//    to Idle after G4GeometryManager::OpenGeometry() is Done.
//  G4State_GeomClosed
//    G4 is in this state between G4GeometryManager::CloseGeometry()
//    and G4GeometryManager::OpenGeometry(), but no event is in 
//    progress. At the begining of each event (construction of a
//    G4Event object and primary particle generation), G4RunManager
//    changes this state to EventProc and resets to GeomClosed state
//    when G4EventManager::ProcessOneEvent() is over.
//  G4State_EventProc
//    Processing an event.
//  G4State_Quit
//    G4 is in this state when the destructor of G4RunManager is invoked.
//  G4State_Abort
//    G4 is in this state when G4Exception is invoked.
//    
//
//  PreInit
//    |
//    v
//  Init
//    |
//    v
//  Idle ------> Quit
//    |^
//    v|
//  GeomClosed (at each run)
//    |^
//    v|
//  EventProc (at each event)
//

enum G4ApplicationState 
  {G4State_PreInit, G4State_Init, G4State_Idle, G4State_GeomClosed,
   G4State_EventProc, G4State_Quit, G4State_Abort};

#endif