SubSystem.h

#pragma once
 
#include <Foundation/Basics.h>
#include <Foundation/Utilities/EnumerableClass.h>
 
struct plStartupStage
{
  enum Enum
  {
    None = -1,
    BaseSystems,      
    CoreSystems,      
    HighLevelSystems, 
 
    ENUM_COUNT
  };
};
 
class PL_FOUNDATION_DLL plSubSystem : public plEnumerable<plSubSystem>
{
  PL_DECLARE_ENUMERABLE_CLASS(plSubSystem);
  PL_DISALLOW_COPY_AND_ASSIGN(plSubSystem);
 
public:
  plSubSystem()
  {
    for (plInt32 i = 0; i < plStartupStage::ENUM_COUNT; ++i)
      m_bStartupDone[i] = false;
  }
 
  virtual ~plSubSystem() = default;
 
  virtual plStringView GetSubSystemName() const = 0;
 
  virtual plStringView GetGroupName() const = 0;
 
  virtual plStringView GetDependency(plInt32 iDep) { return {}; }
 
  plStringView GetPluginName() const { return m_sPluginName; }
 
  bool IsStartupPhaseDone(plStartupStage::Enum stage) const { return m_bStartupDone[stage]; }
 
private:
  // only the startup system may access the following functionality
  friend class plStartup;
 
  virtual void OnBaseSystemsStartup() {}
 
  virtual void OnCoreSystemsStartup() {}
 
  virtual void OnCoreSystemsShutdown() {}
 
  virtual void OnHighLevelSystemsStartup() {}
 
  virtual void OnHighLevelSystemsShutdown() {}
 
  plStringView m_sPluginName;
 
  bool m_bStartupDone[plStartupStage::ENUM_COUNT];
};
 
#include <Foundation/Configuration/StaticSubSystem.h>