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refobj.hxx
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19 
20 #ifndef INCLUDED_SALHELPER_REFOBJ_HXX
21 #define INCLUDED_SALHELPER_REFOBJ_HXX
22 
23 #include <sal/types.h>
24 #include <rtl/alloc.h>
25 #include <rtl/ref.hxx>
26 #include <osl/diagnose.h>
27 #include <osl/interlck.h>
28 
29 namespace salhelper
30 {
31 
32 //----------------------------------------------------------------------------
33 
35 {
38  oslInterlockedCount m_nReferenceCount;
39 
43  ReferenceObject& operator= (const ReferenceObject&);
44 
45 public:
48  static void* operator new (size_t n) SAL_THROW(())
49  {
51  }
52  static void operator delete (void* p) SAL_THROW(())
53  {
54  ::rtl_freeMemory (p);
55  }
56  static void* operator new (size_t, void* p) SAL_THROW(())
57  {
58  return (p);
59  }
60  static void operator delete (void*, void*) SAL_THROW(())
61  {}
62 
63 public:
66  inline ReferenceObject() SAL_THROW(()) : m_nReferenceCount (0)
67  {}
68 
69 
72  virtual oslInterlockedCount SAL_CALL acquire() SAL_THROW(())
73  {
74  return ::osl_incrementInterlockedCount (&m_nReferenceCount);
75  }
76 
77  virtual oslInterlockedCount SAL_CALL release() SAL_THROW(())
78  {
79  oslInterlockedCount result;
80  result = ::osl_decrementInterlockedCount (&m_nReferenceCount);
81  if (result == 0)
82  {
83  // Last reference released.
84  delete this;
85  }
86  return (result);
87  }
88 
89 protected:
93  {
94  OSL_ASSERT(m_nReferenceCount == 0);
95  }
96 };
97 
98 //----------------------------------------------------------------------------
99 
100 } // namespace salhelper
101 
102 #endif /* ! INCLUDED_SALHELPER_REFOBJ_HXX */
103 
104 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
ReferenceObject()
Construction.
Definition: refobj.hxx:66
virtual oslInterlockedCount release()
Definition: refobj.hxx:77
SAL_DLLPUBLIC void * rtl_allocateMemory(sal_Size Bytes) SAL_THROW_EXTERN_C()
Allocate memory.
sal_Int32 oslInterlockedCount
Definition: interlck.h:32
Definition: refobj.hxx:34
SAL_DLLPUBLIC oslInterlockedCount osl_decrementInterlockedCount(oslInterlockedCount *pCount)
Decrement the count variable addressed by pCount.
virtual oslInterlockedCount acquire()
IReference.
Definition: refobj.hxx:72
#define OSL_ASSERT(c)
Definition: diagnose.h:153
SAL_DLLPUBLIC oslInterlockedCount osl_incrementInterlockedCount(oslInterlockedCount *pCount)
Increments the count variable addressed by pCount.
Interface for a reference type.
Definition: ref.hxx:32
virtual ~ReferenceObject()
Destruction.
Definition: refobj.hxx:92
SAL_DLLPUBLIC void rtl_freeMemory(void *Ptr) SAL_THROW_EXTERN_C()
Free memory.
#define SAL_THROW(exc)
Definition of function throw clause macros.
Definition: types.h:358