LibreOffice LibreOffice 5.3 SDK C/C++ API Reference

simplereferenceobject.hxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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11 * Licensed to the Apache Software Foundation (ASF) under one or more
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17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
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19
20 #ifndef INCLUDED_SALHELPER_SIMPLEREFERENCEOBJECT_HXX
21 #define INCLUDED_SALHELPER_SIMPLEREFERENCEOBJECT_HXX
22
23 #include <osl/interlck.h>
24 #include <salhelper/salhelperdllapi.h>
25
26 #include <cstddef>
27 #include <new>
28
29 namespace salhelper {
30
57 class SALHELPER_DLLPUBLIC SimpleReferenceObject
58 {
59 public:
60 inline SimpleReferenceObject(): m_nCount(0) {}
61
68 inline void acquire()
69 { osl_atomic_increment(&m_nCount); }
70
71 inline void release()
72 { if (osl_atomic_decrement(&m_nCount) == 0) delete this; }
73
76 static void * operator new(std::size_t nSize);
77
80 static void * operator new(std::size_t nSize,
81 std::nothrow_t const & rNothrow);
82
85 static void operator delete(void * pPtr);
86
89 static void operator delete(void * pPtr, std::nothrow_t const & rNothrow);
90
91 protected:
92 virtual ~SimpleReferenceObject();
93
94 private:
95 oslInterlockedCount m_nCount;
96
99 SimpleReferenceObject(SimpleReferenceObject &) SAL_DELETED_FUNCTION;
100
103 void operator =(SimpleReferenceObject) SAL_DELETED_FUNCTION;
104
106
107 #ifdef _MSC_VER
108 /* We can't now have these private with MSVC2008 at least, it leads to
109 compilation errors in xmloff and other places.
110 */
111 protected:
112 #endif
113
115 static void * operator new[](std::size_t);
116
119 static void operator delete[](void * pPtr);
120
122 };
123
124 }
125
126 #endif // INCLUDED_SALHELPER_SIMPLEREFERENCEOBJECT_HXX
127
128 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
interlck.h
salhelper
Definition: condition.hxx:29
salhelperdllapi.h
SAL_DELETED_FUNCTION
#define SAL_DELETED_FUNCTION
short-circuit extra-verbose API namespaces
Definition: types.h:410
salhelper::SimpleReferenceObject::SimpleReferenceObject
SimpleReferenceObject()
Definition: simplereferenceobject.hxx:60
salhelper::SimpleReferenceObject::release
void release()
Definition: simplereferenceobject.hxx:71
oslInterlockedCount
sal_Int32 oslInterlockedCount
Definition: interlck.h:36
salhelper::SimpleReferenceObject
A simple base implementation for reference-counted objects.
Definition: simplereferenceobject.hxx:57
salhelper::SimpleReferenceObject::acquire
void acquire()
Definition: simplereferenceobject.hxx:68
SALHELPER_DLLPUBLIC
#define SALHELPER_DLLPUBLIC
Definition: salhelperdllapi.h:28