48 using Identifier =
const char*;
56 [[
nodiscard]]
inline int getCounter()
const
68 inline void increaseCounter()
74 virtual ~FuncWrapperBase();
77 template<
typename T,
typename ...
Args>
78 class FuncWrapper
final
79 :
public FuncWrapperBase
82 const std::function<
T(
Args ...)> mFunc;
85 explicit FuncWrapper(std::function<
T(
Args ...)>
pFunc)
94 return mFunc(
pArgs ...);
101 QList<Wrapper> mInstancesCreator;
107 QList<std::function<
void* (
bool)>> mSingletonCreator;
112 static Env& getInstance();
117 Q_ASSERT(!mSingletonHandler.isNull());
119 if (!QCoreApplication::startingUp() && !QCoreApplication::applicationName().
startsWith(
QLatin1String(
"Test_")))
125 qDebug() <<
"Create singleton:" << T::staticMetaObject.className();
128 if constexpr (std::is_abstract_v<T>&& std::is_destructible_v<T>)
137 QObject::connect(ptr, &QObject::destroyed, ptr, [] {
138 qDebug() <<
"Destroy singleton:" << T::staticMetaObject.className();
140 mSingletonHandler->add(ptr);
141 mSingletonCreator << std::bind(&Env::getOrCreateSingleton<T>,
this, std::placeholders::_1);
148 T* getOrCreateSingleton(
bool pCreate =
false)
164 inline T* fetchRealSingleton()
166 if constexpr (QtPrivate::IsPointerToTypeDerivedFromQObject<T*>::Value)
172 if constexpr (std::is_abstract_v<T>&& std::is_destructible_v<T>)
174 static_assert(std::has_virtual_destructor_v<T>,
"Destructor must be virtual");
179 return &T::getInstance();
186 inline T* checkObjectInfo(Identifier
pId,
T*
pObject)
const
188 static_assert(QtPrivate::IsGadgetHelper<T>::IsRealGadget || QtPrivate::IsPointerToTypeDerivedFromQObject<T*>::Value,
189 "Object needs to be a Q_GADGET or an QObject/Q_OBJECT");
191 if constexpr (QtPrivate::IsPointerToTypeDerivedFromQObject<T*>::Value)
193 if (!std::is_base_of<ThreadSafe, T>() &&
pObject->thread() != QThread::currentThread())
195 qWarning() <<
pId <<
"was created in" <<
pObject->thread()->objectName() <<
"but is requested by" << QThread::currentThread()->objectName();
207 inline T* fetchSingleton()
209 static_assert(QtPrivate::IsGadgetHelper<T>::IsRealGadget || QtPrivate::IsPointerToTypeDerivedFromQObject<T*>::Value,
210 "Singletons needs to be a Q_GADGET or an QObject/Q_OBJECT");
212 const Identifier
id = T::staticMetaObject.className();
216 obj = mInstancesSingleton.value(
id);
221 return checkObjectInfo(
id,
static_cast<T*
>(
obj));
225 template<
typename T,
typename ...
Args>
228 if constexpr (std::is_constructible_v<std::remove_pointer_t<T>,
Args ...>)
230 if constexpr (std::is_pointer_v<T>)
232 using t = std::remove_pointer_t<T>;
233 return new t(std::forward<Args>(
pArgs) ...);
237 return T(std::forward<Args>(
pArgs) ...);
242 static_assert(std::is_pointer_v<T>,
"It is impossible to return implementation of interface by value. Use pointer or add constructor!");
250 template<
typename T,
typename ...
Args>
277 Q_ASSERT(mSingletonHandler.isNull());
279 QObject::connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, mSingletonHandler.data(), &QObject::deleteLater);
281 const auto copy = mSingletonCreator;
282 mSingletonCreator.clear();
283 for (
const auto&
func : copy)
296 getInstance().initialize();
303 return getInstance().fetchSingleton<
T>();
307 template<
typename T,
typename ...
Args>
310 return getInstance().createObject<
T>(std::forward<Args>(
pArgs) ...);
317 static_assert(QtPrivate::IsPointerToTypeDerivedFromQObject<T*>::Value,
"Shared class needs to be an QObject/Q_OBJECT");
319 const Identifier
className = T::staticMetaObject.className();
321 auto&
holder = getInstance();
322 holder.mSharedInstancesLock.lockForRead();
324 holder.mSharedInstancesLock.unlock();
333 shared = QSharedPointer<T>::create();
347 template<
typename T,
typename ...
Args>
350 auto&
holder = getInstance();
353 for (
const auto&
mock : std::as_const(
holder.mInstancesCreator))
355 if (
mock.dynamicCast<FuncWrapper<T, Args ...>>())
357 return mock->getCounter();
365 template<
typename T,
typename ...
Args>
372 auto&
holder = getInstance();
376 while (
iter.hasNext())
379 if (
iter.value().dynamicCast<FuncWrapper<T, Args ...>>())
QSharedPointer< T > decodeObject(const QByteArray &pData, bool pLogging=true)
Template function for decoding an OpenSSL type from DER encoded QByteArray.
Definition ASN1TemplateUtil.h:112