106 lines
4.8 KiB
C
106 lines
4.8 KiB
C
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#define ARRAYLEN(a) (sizeof(a) / sizeof((a)[0]))
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#define BREAK_ON_FAIL(hr) if (FAILED(hr)) { break; } else 1;
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#define BREAK_ON_ERROR(lr) if ((lr) != ERROR_SUCCESS) { break; } else 1;
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#ifndef offsetof
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#define offsetof(type,field) ((size_t)&(((type*)0)->field))
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#endif
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//---------------------------------------------------------------
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// IUnknown
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//---------------------------------------------------------------
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//
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// This declares the set of IUnknown methods and is for general-purpose
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// use inside classes that inherit from IUnknown
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//
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#define DECLARE_IUNKNOWN_METHODS \
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STDMETHOD(QueryInterface) (REFIID riid, LPVOID FAR* ppvObj); \
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STDMETHOD_(ULONG,AddRef) (void); \
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STDMETHOD_(ULONG,Release) (void)
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//
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// This is for use in declaring non-aggregatable objects. It declares the
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// IUnknown methods and reference counter, m_ulRefs.
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// m_ulRefs should be initialized to 1 in the constructor of the object
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//
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#define DECLARE_STANDARD_IUNKNOWN \
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DECLARE_IUNKNOWN_METHODS; \
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ULONG m_ulRefs
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//
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// NOTE: this does NOT implement QueryInterface, which must be
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// implemented by each object
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//
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#define IMPLEMENT_STANDARD_IUNKNOWN(cls) \
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STDMETHODIMP_(ULONG) cls##::AddRef() \
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{ return InterlockedIncrement((LONG*)&m_ulRefs); } \
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STDMETHODIMP_(ULONG) cls##::Release() \
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{ ULONG ulRet = InterlockedDecrement((LONG*)&m_ulRefs); \
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if (0 == ulRet) { delete this; } \
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return ulRet; }
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//-----------------------------------------------------------------------------
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// IClassFactory
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//-----------------------------------------------------------------------------
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#define JF_IMPLEMENT_CLASSFACTORY(cls) \
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class cls##CF : public IClassFactory \
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{ \
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public: \
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STDMETHOD(QueryInterface)(REFIID riid, LPVOID *ppvObj); \
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STDMETHOD_(ULONG,AddRef)(void); \
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STDMETHOD_(ULONG,Release)(void); \
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\
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STDMETHOD(CreateInstance)(IUnknown* pUnkOuter, \
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REFIID riid, LPVOID* ppvObj); \
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STDMETHOD(LockServer)(BOOL fLock); \
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}; \
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\
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STDMETHODIMP \
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cls##CF::QueryInterface(REFIID riid, LPVOID* ppvObj) \
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{ \
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if (IsEqualIID(IID_IUnknown, riid) || \
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IsEqualIID(IID_IClassFactory, riid)) \
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{ \
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*ppvObj = (IUnknown*)(IClassFactory*) this; \
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this->AddRef(); \
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return S_OK; \
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} \
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\
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*ppvObj = NULL; \
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return E_NOINTERFACE; \
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} \
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\
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STDMETHODIMP_(ULONG) \
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cls##CF::AddRef() \
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{ \
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return CDll::AddRef(); \
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} \
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\
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STDMETHODIMP_(ULONG) \
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cls##CF::Release() \
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{ \
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return CDll::Release(); \
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} \
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\
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STDMETHODIMP \
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cls##CF::LockServer(BOOL fLock) \
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{ \
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CDll::LockServer(fLock); \
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\
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return S_OK; \
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}
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