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21*c45d927aSAndrew Rist 
22*c45d927aSAndrew Rist 
23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef _SD_SIMPLEREFERENCECOMPONENT_HXX_
25cdf0e10cSrcweir #define _SD_SIMPLEREFERENCECOMPONENT_HXX_
26cdf0e10cSrcweir 
27cdf0e10cSrcweir #include "osl/interlck.h"
28cdf0e10cSrcweir #include "sal/types.h"
29cdf0e10cSrcweir 
30cdf0e10cSrcweir #include <cstddef>
31cdf0e10cSrcweir #include <new>
32cdf0e10cSrcweir 
33cdf0e10cSrcweir #include <sddllapi.h>
34cdf0e10cSrcweir 
35cdf0e10cSrcweir namespace sd {
36cdf0e10cSrcweir 
37cdf0e10cSrcweir /** A simple base implementation for reference-counted components.
38cdf0e10cSrcweir 	acts like sal::SimpleReferenceObject but calls the virtual disposing()
39cdf0e10cSrcweir 	methods before the ref count switches from 1 to zero.
40cdf0e10cSrcweir  */
41cdf0e10cSrcweir class SimpleReferenceComponent
42cdf0e10cSrcweir {
43cdf0e10cSrcweir public:
44cdf0e10cSrcweir     SimpleReferenceComponent();
45cdf0e10cSrcweir 
46cdf0e10cSrcweir     /** @ATTENTION
47cdf0e10cSrcweir         The results are undefined if, for any individual instance of
48cdf0e10cSrcweir         SimpleReferenceComponent, the total number of calls to acquire() exceeds
49cdf0e10cSrcweir         the total number of calls to release() by a plattform dependent amount
50cdf0e10cSrcweir         (which, hopefully, is quite large).
51cdf0e10cSrcweir      */
52cdf0e10cSrcweir     SD_DLLPUBLIC void acquire();
53cdf0e10cSrcweir     SD_DLLPUBLIC void release();
54cdf0e10cSrcweir 
55cdf0e10cSrcweir 	void Dispose();
56cdf0e10cSrcweir 
57cdf0e10cSrcweir 	bool isDisposed() const { return mbDisposed; }
58cdf0e10cSrcweir 
59cdf0e10cSrcweir     /** see general class documentation
60cdf0e10cSrcweir      */
61cdf0e10cSrcweir     static void * operator new(std::size_t nSize) SAL_THROW((std::bad_alloc));
62cdf0e10cSrcweir 
63cdf0e10cSrcweir     /** see general class documentation
64cdf0e10cSrcweir      */
65cdf0e10cSrcweir     static void * operator new(std::size_t nSize,
66cdf0e10cSrcweir                                std::nothrow_t const & rNothrow)
67cdf0e10cSrcweir        ;
68cdf0e10cSrcweir 
69cdf0e10cSrcweir     /** see general class documentation
70cdf0e10cSrcweir      */
71cdf0e10cSrcweir     static void operator delete(void * pPtr);
72cdf0e10cSrcweir 
73cdf0e10cSrcweir     /** see general class documentation
74cdf0e10cSrcweir      */
75cdf0e10cSrcweir     static void operator delete(void * pPtr, std::nothrow_t const & rNothrow)
76cdf0e10cSrcweir        ;
77cdf0e10cSrcweir 
78cdf0e10cSrcweir protected:
79cdf0e10cSrcweir 	virtual void disposing();
80cdf0e10cSrcweir 
81cdf0e10cSrcweir     virtual ~SimpleReferenceComponent();
82cdf0e10cSrcweir 
83cdf0e10cSrcweir private:
84cdf0e10cSrcweir     oslInterlockedCount m_nCount;
85cdf0e10cSrcweir 
86cdf0e10cSrcweir     /** not implemented
87cdf0e10cSrcweir         @internal
88cdf0e10cSrcweir      */
89cdf0e10cSrcweir     SimpleReferenceComponent(SimpleReferenceComponent &);
90cdf0e10cSrcweir 
91cdf0e10cSrcweir     /** not implemented
92cdf0e10cSrcweir         @internal
93cdf0e10cSrcweir      */
94cdf0e10cSrcweir     void operator =(SimpleReferenceComponent);
95cdf0e10cSrcweir 
96cdf0e10cSrcweir     /** not implemented (see general class documentation)
97cdf0e10cSrcweir         @internal
98cdf0e10cSrcweir      */
99cdf0e10cSrcweir     static void * operator new[](std::size_t);
100cdf0e10cSrcweir 
101cdf0e10cSrcweir     /** not implemented (see general class documentation)
102cdf0e10cSrcweir         @internal
103cdf0e10cSrcweir      */
104cdf0e10cSrcweir     static void operator delete[](void * pPtr);
105cdf0e10cSrcweir 
106cdf0e10cSrcweir 	bool mbDisposed;
107cdf0e10cSrcweir };
108cdf0e10cSrcweir 
109cdf0e10cSrcweir }
110cdf0e10cSrcweir 
111cdf0e10cSrcweir #endif // _SALHELPER_SimpleReferenceComponent_HXX_
112