}
typedef Optional<Thread *> OptionalThreadPtr;
- OptionalThreadPtr m_guard;
static Singleton &InternalInstance();
}
static Class &Instance();
-
- // Thread guarding
- static void SetThreadGuard(Thread *thread);
- static void ResetThreadGuard();
};
} // namespace DPL
Class &Singleton<Class>::Instance()
{
Singleton<Class>& instance = Singleton<Class>::InternalInstance();
-
- if (!!instance.m_guard)
- {
- Assert(Thread::GetCurrentThread() == *instance.m_guard &&
- "Singleton thread guard failed. A forbidden call from foreign thread was detected!");
- }
-
return instance;
}
-// Thread guarding
-template<typename Class>
-void Singleton<Class>::SetThreadGuard(Thread *thread)
-{
- Singleton<Class>& instance = Singleton<Class>::InternalInstance();
- instance.m_guard = OptionalThreadPtr(thread);
-}
-
-template<typename Class>
-void Singleton<Class>::ResetThreadGuard()
-{
- Singleton<Class>& instance = Singleton<Class>::InternalInstance();
- instance.m_guard = OptionalThreadPtr::Null;
-}
-
} // namespace DPL
#define IMPLEMENT_SINGLETON(Type) \
template DPL::Singleton<Type>& DPL::Singleton<Type>::InternalInstance(); \
template Type& DPL::Singleton<Type>::Instance(); \
-template void DPL::Singleton<Type>::SetThreadGuard(DPL::Thread *thread); \
-template void DPL::Singleton<Type>::ResetThreadGuard();
#endif // DPL_SINGLETON_IMPL_H
Class &Singleton<Class>::Instance() \
{ \
Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
- if (!!instance.m_guard) \
- { \
- Assert(Thread::GetCurrentThread() == *instance.m_guard && \
- "Singleton thread guard failed. A forbidden call from foreign thread was detected!");\
- } \
return instance; \
} \
\
-template<> \
-void Singleton<Class>::SetThreadGuard(Thread *thread) \
-{ \
- Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
- instance.m_guard = OptionalThreadPtr(thread); \
-} \
- \
-template<> \
-void Singleton<Class>::ResetThreadGuard() \
-{ \
- Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
- instance.m_guard = OptionalThreadPtr::Null; \
-} \
template Singleton<Class>& Singleton<Class>::InternalInstance(); \
template Class& Singleton<Class>::Instance(); \
-template void Singleton<Class>::SetThreadGuard(Thread *thread); \
-template void Singleton<Class>::ResetThreadGuard(); \
} // namespace DPL