omni::graph::exec::unstable::Implements

Defined in omni/graph/exec/unstable/IBase.h

template<typename T, typename ...Rest> struct Implements : public omni::graph::exec::unstable::ImplementsCastWithoutAcquire<T, Rest...>

Helper template for implementing one or more interfaces.

Similar functionality as omni::core::Implements but adds support for ImplementsCastWithoutAcquire.

Subclassed by omni::graph::exec::unstable::ExecutionContext< StorageType, ParentInterface >, omni::graph::exec::unstable::Executor< ExecNode, ExecStrategy, ExecNodeData, Scheduler, SchedulingStrategy, ExecutorInterface >

Public Functions

inline void acquire() noexcept

Increments the object’s reference count.

Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().

Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.

Thread Safety: This method is thread safe.

inline void release() noexcept

Decrements the objects reference count.

Most implementations will destroy the object if the reference count reaches 0 (though this is not a requirement).

Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().

Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.

Thread Safety: This method is thread safe.

inline uint32_t getUseCount() noexcept

Returns the number of different instances (this included) referencing the current object.

Thread Safety: This method is thread safe.

inline void *cast(omni::core::TypeId id) noexcept: See omni::core::IObject::cast.

inline void *castWithoutAcquire(omni::core::TypeId id) noexcept: See omni::graph::exec::unstable::IBase_abi::castWithoutAcquire_abi.

Protected Functions

virtual ~Implements() noexcept = default

inline void acquire_abi() noexcept override

Increments the object’s reference count.

Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().

Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.

Thread Safety: This method is thread safe.

inline void release_abi() noexcept override

Decrements the objects reference count.

Most implementations will destroy the object if the reference count reaches 0 (though this is not a requirement).

Objects may have multiple reference counts (e.g. one per interface implemented). As such, it is important that you call omni::core::IObject::release() on the same pointer from which you called omni::core::IObject::acquire().

Do not directly use this method, rather use omni::core::ObjectPtr, which will manage calling omni::core::IObject::acquire() and omni::core::IObject::release() for you.

Thread Safety: This method is thread safe.

inline uint32_t getUseCount_abi() noexcept override: Returns the number of different instances (this included) referencing the current object.

inline void *cast_abi(omni::core::TypeId id) noexcept override

Returns a pointer to the interface defined by the given type id if this object implements the type id’s interface.

Objects can support multiple interfaces, even interfaces that are in different inheritance chains.

The returned object will have omni::core::IObject::acquire() called on it before it is returned, meaning it is up to the caller to call omni::core::IObject::release() on the returned pointer.

The returned pointer can be safely reinterpret_cast<> to the type id’s C++ class. For example, “omni.windowing.IWindow” can be cast to omni::windowing::IWindow.

Do not directly use this method, rather use a wrapper function like omni::core::cast() or omni::core::ObjectPtr::as().

Thread Safety: This method is thread safe.

inline void *castWithoutAcquire_abi(omni::core::TypeId id) noexcept override

Casts this object to the type described the the given id.

Returns nullptr if the cast was not successful.

Unlike omni::core::IObject::cast(), this casting method does not call omni::core::IObject::acquire().

Thread Safety: This method is thread safe.

Protected Attributes

std::atomic<uint32_t> m_refCount = {1}: Reference count.