IAppSystem.h

#pragma once

struct AppSystemInfo_t
{
	const char* m_pModuleName;
	const char* m_pInterfaceName;
};

enum InitReturnVal_t
{
	INIT_FAILED = 0,
	INIT_OK,
	INIT_LAST_VAL,
};

enum AppSystemTier_t
{
	APP_SYSTEM_TIER0 = 0,
	APP_SYSTEM_TIER1,
	APP_SYSTEM_TIER2,
	APP_SYSTEM_TIER3,
	APP_SYSTEM_TIER_OTHER,
};

typedef void* (*CreateInterfaceFn)(const char* pName, int* pReturnCode);

class IAppSystem
{
public:
	virtual bool Connect(CreateInterfaceFn factory) = 0; // 0
	virtual void Disconnect() = 0;
	virtual void* QueryInterface(const char* interfaceName) = 0;
	virtual InitReturnVal_t Init() = 0; // 3
	virtual void Shutdown() = 0; // 4
	virtual void PreShutdown() = 0; // 5
	virtual const AppSystemInfo_t* GetDependencies() = 0;
	virtual AppSystemTier_t GetTier() = 0;
	virtual void Reconnect(CreateInterfaceFn factory, const char* pInterfaceName) = 0;
	virtual bool IsSingleton() = 0;
	virtual void GetBuildType() = 0; // 10
};