__abi_FTMWeakRefData Class Reference

#include <vccorlib.h>

Public Member Functions
	__declspec (non_user_code) __abi_FTMWeakRefData(
	__declspec (non_user_code) __abi_FTMWeakRefData(
	__declspec (non_user_code) void __abi_dtor()
unsigned long __stdcall	Increment () volatile
unsigned long __stdcall	Decrement () volatile
__abi_FTMWeakRefData *	GetFreeThreadedMarshaler ()
inline::Platform::Details::IWeakReference	GetWeakReference ()
long __stdcall	Get () volatile
long __stdcall	__abi_QueryInterface (::Platform::Guid &__guid, void **__pOut)
void	ReleaseControlBlock ()

Private Attributes
::Platform::Details::ControlBlock *	__weakRefSource
__abi_IUnknown *volatile	__pUnkMarshal

Member Function Documentation

long __stdcall __abi_FTMWeakRefData::__abi_QueryInterface ( ::Platform::Guid &  __guid, void **  __pOut  )

inline

{
    if (__pUnkMarshal == nullptr || __guid.Equals(__uuidof(__abi_IMarshal)) == false)
    {
        return 0x80004002;
    }
    if (__pUnkMarshal == reinterpret_cast<__abi_IUnknown*>(-1))
    {
        __abi_IUnknown* __pUnkMarshalLocal;

#if !defined(VCWINRT_DLL)
        long __hr = ::__Platform_CoCreateFreeThreadedMarshaler(reinterpret_cast<::Platform::Object^>(__weakRefSource->__target),  reinterpret_cast< ::Platform::Object^*>(&__pUnkMarshalLocal));
#else
        long __hr = ::CoCreateFreeThreadedMarshaler(reinterpret_cast<IUnknown*>(__weakRefSource->__target),  reinterpret_cast<IUnknown**>(&__pUnkMarshalLocal));
#endif
        __abi_ThrowIfFailed(__hr);

        if (::_InterlockedCompareExchangePointer(reinterpret_cast<void* volatile*>(&__pUnkMarshal), __pUnkMarshalLocal, reinterpret_cast<void*>(-1)) != reinterpret_cast<void*>(-1))
        {
            __pUnkMarshalLocal->__abi_Release();
        }
    }
    return __pUnkMarshal->__abi_QueryInterface(__guid, __pOut);
}

__abi_FTMWeakRefData::__declspec ( non_user_code  )

inline

    {
        __pUnkMarshal = reinterpret_cast<__abi_IUnknown*>(-1);

        if (__abi_module != nullptr)
        {
            __abi_module->__abi_IncrementObjectCount();
        }
    }

__abi_FTMWeakRefData::__declspec ( non_user_code  )

inline

    {
        if (__contextArg == ::Platform::CallbackContext::Any)
        {
            __pUnkMarshal = reinterpret_cast<__abi_IUnknown*>(-1);
        }
        else
        {
            __pUnkMarshal = nullptr;
        }

        if (__abi_module != nullptr)
        {
            __abi_module->__abi_IncrementObjectCount();
        }
    }

__abi_FTMWeakRefData::__declspec ( non_user_code  )

inline

    {
        if (__pUnkMarshal && __pUnkMarshal != reinterpret_cast<__abi_IUnknown*>(-1))
        {
            __pUnkMarshal->__abi_Release();
            __pUnkMarshal = nullptr;
        }

        if (__abi_module != nullptr)
        {
            __abi_module->__abi_DecrementObjectCount();
        }

        __weakRefSource->DecrementStrongReference();
        ReleaseControlBlock();
    }

unsigned long __stdcall __abi_FTMWeakRefData::Decrement ( ) volatile

inline

    {
        if (__weakRefSource == nullptr || __weakRefSource->GetRefcount() < 0)
        {
            return static_cast<unsigned long>(-1); // Called during destruction
        }

        unsigned long __refCount = __weakRefSource->DecrementStrongReference();
        if (__refCount == 0)
        {
            if (__pUnkMarshal && __pUnkMarshal != reinterpret_cast<__abi_IUnknown*>(-1))
            {
                __pUnkMarshal->__abi_Release();
                __pUnkMarshal = nullptr;
            }

            // When destructing objects at the end of the program, we might be freeing
            // objects across dlls, and the dll this object is in might have already freed its module object.
            if (__abi_module != nullptr)
            {
                __abi_module->__abi_DecrementObjectCount();
            }
        }

        return __refCount;
    }

long __stdcall __abi_FTMWeakRefData::Get ( ) volatile

inline

    {
        if (__weakRefSource == nullptr)
        {
            return static_cast<unsigned long>(-1); // Called during destruction
        }
        return __weakRefSource->GetRefcount();
    }

__abi_FTMWeakRefData* __abi_FTMWeakRefData::GetFreeThreadedMarshaler ( )

inline

    {
        if (__pUnkMarshal == nullptr)
        {
            return nullptr;
        }
        return this;
    }

inline ::Platform::Details::IWeakReference __abi_FTMWeakRefData::GetWeakReference ( )

inline

    {
        return reinterpret_cast< ::Platform::Details::IWeakReference^>(__weakRefSource);
    }

unsigned long __stdcall __abi_FTMWeakRefData::Increment ( ) volatile

inline

    {
        if (__weakRefSource == nullptr || __weakRefSource->GetRefcount() < 0)
        {
            return static_cast<unsigned long>(-1); // Called during destruction
        }

        return __weakRefSource->IncrementStrongReference();
    }

void __abi_FTMWeakRefData::ReleaseControlBlock ( )

inline

    {
        auto __localWeakRefSource = __weakRefSource;
        __localWeakRefSource->ReleaseTarget();
        __localWeakRefSource->__abi_Release();
    }

Member Data Documentation

__abi_IUnknown* volatile __abi_FTMWeakRefData::__pUnkMarshal

private

::Platform::Details::ControlBlock* __abi_FTMWeakRefData::__weakRefSource

private

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The documentation for this class was generated from the following file:

• VS2017/inc/vccorlib.h