Startup.h

#pragma once
 
#include <Foundation/Configuration/Plugin.h>
#include <Foundation/Configuration/SubSystem.h>
#include <Foundation/Containers/Deque.h>
 
#define PL_GLOBALEVENT_STARTUP_CORESYSTEMS_BEGIN "plStartup_StartupCoreSystems_Begin"
#define PL_GLOBALEVENT_STARTUP_CORESYSTEMS_END "plStartup_StartupCoreSystems_End"
#define PL_GLOBALEVENT_SHUTDOWN_CORESYSTEMS_BEGIN "plStartup_ShutdownCoreSystems_Begin"
#define PL_GLOBALEVENT_SHUTDOWN_CORESYSTEMS_END "plStartup_ShutdownCoreSystems_End"
 
#define PL_GLOBALEVENT_STARTUP_HIGHLEVELSYSTEMS_BEGIN "plStartup_StartupHighLevelSystems_Begin"
#define PL_GLOBALEVENT_STARTUP_HIGHLEVELSYSTEMS_END "plStartup_StartupHighLevelSystems_End"
#define PL_GLOBALEVENT_SHUTDOWN_HIGHLEVELSYSTEMS_BEGIN "plStartup_ShutdownHighLevelSystems_Begin"
#define PL_GLOBALEVENT_SHUTDOWN_HIGHLEVELSYSTEMS_END "plStartup_ShutdownHighLevelSystems_End"
 
#define PL_GLOBALEVENT_UNLOAD_PLUGIN_BEGIN "plStartup_UnloadPlugin_Begin"
#define PL_GLOBALEVENT_UNLOAD_PLUGIN_END "plStartup_UnloadPlugin_End"
 
class PL_FOUNDATION_DLL plStartup
{
public:
  // 'Base Startup' happens even before 'Core Startup', but only really low level stuff should  be done there
  // and those subsystems should not have any dependencies on each other.
  // 'Base Startup' is automatically done right before 'Core Startup'
  // There is actually no 'Base Shutdown', everything that is initialized in 'Base Startup' should not require
  // any explicit shutdown.
 
  static void AddApplicationTag(const char* szTag);
 
  static bool HasApplicationTag(const char* szTag);
 
  static void StartupBaseSystems() { Startup(plStartupStage::BaseSystems); }
 
  static void StartupCoreSystems() { Startup(plStartupStage::CoreSystems); }
 
  static void ShutdownCoreSystems() { Shutdown(plStartupStage::CoreSystems); }
 
  static void StartupHighLevelSystems() { Startup(plStartupStage::HighLevelSystems); }
 
  static void ShutdownHighLevelSystems() { Shutdown(plStartupStage::HighLevelSystems); }
 
  static void PrintAllSubsystems();
 
  static void ReinitToCurrentState();
 
private:
  static void UnloadPluginSubSystems(plStringView sPluginName);
 
  static void PluginEventHandler(const plPluginEvent& EventData);
  static void AssignSubSystemPlugin(plStringView sPluginName);
 
  static void ComputeOrder(plDeque<plSubSystem*>& Order);
  static bool HasDependencyOnPlugin(plSubSystem* pSubSystem, plStringView sModule);
 
  static void Startup(plStartupStage::Enum stage);
  static void Shutdown(plStartupStage::Enum stage);
 
  static bool s_bPrintAllSubSystems;
  static plStartupStage::Enum s_CurrentState;
  static plDynamicArray<const char*> s_ApplicationTags;
};