LibreOffice LibreOffice 7.2 SDK C/C++ API Reference

weak.hxx
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20/*
21 * This file is part of LibreOffice published API.
22 */
23#ifndef INCLUDED_CPPUHELPER_WEAK_HXX
24#define INCLUDED_CPPUHELPER_WEAK_HXX
25
26#include <cassert>
27#include <cstddef>
28#include "osl/interlck.h"
29#include "rtl/alloc.h"
30#include "com/sun/star/uno/XWeak.hpp"
31#include "cppuhelper/cppuhelperdllapi.h"
32
33
34 namespace cppu
35{
36
37 class OWeakConnectionPoint;
38
47 class CPPUHELPER_DLLPUBLIC OWeakObject : public css::uno::XWeak
48{
49 friend class OWeakConnectionPoint;
50
51 protected:
58 virtual ~OWeakObject() COVERITY_NOEXCEPT_FALSE;
59
64 void disposeWeakConnectionPoint();
65
71 oslInterlockedCount m_refCount;
72
74
77 OWeakConnectionPoint * m_pWeakConnectionPoint;
78
81 void * m_pReserved;
82
84
85public:
87 // these are here to force memory de/allocation to sal lib.
88 static void * SAL_CALL operator new( size_t nSize )
89 { return ::rtl_allocateMemory( nSize ); }
90 static void SAL_CALL operator delete( void * pMem )
91 { ::rtl_freeMemory( pMem ); }
92 static void * SAL_CALL operator new( size_t, void * pMem )
93 { return pMem; }
94 static void SAL_CALL operator delete( void *, void * )
95 {}
97
98#ifdef _MSC_VER
102 OWeakObject();
103#else
106 OWeakObject()
107 : m_refCount( 0 )
108 , m_pWeakConnectionPoint( NULL )
109 , m_pReserved(NULL)
110 {}
111#endif
114 OWeakObject( const OWeakObject & )
115 : css::uno::XWeak()
116 , m_refCount( 0 )
117 , m_pWeakConnectionPoint( NULL )
118 , m_pReserved(NULL)
119 {}
124 OWeakObject & SAL_CALL operator = ( const OWeakObject &)
125 { return *this; }
126
133 virtual css::uno::Any SAL_CALL queryInterface(
134 const css::uno::Type & rType ) SAL_OVERRIDE;
137 virtual void SAL_CALL acquire()
138 SAL_NOEXCEPT SAL_OVERRIDE;
141 virtual void SAL_CALL release()
142 SAL_NOEXCEPT SAL_OVERRIDE;
143
148 virtual css::uno::Reference< css::uno::XAdapter > SAL_CALL queryAdapter() SAL_OVERRIDE;
149
154 SAL_CALL operator css::uno::Reference< css::uno::XInterface > ()
155 { return this; }
156};
157
159
170 static inline css::uno::XInterface * acquire(OWeakObject * instance)
171{
172 assert(instance != NULL);
173 instance->acquire();
174 return instance;
175}
177
178}
179
180#endif
181
182/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
SAL_NOEXCEPT
#define SAL_NOEXCEPT
Macro for C++11 "noexcept" vs.
Definition: types.h:416
COVERITY_NOEXCEPT_FALSE
#define COVERITY_NOEXCEPT_FALSE
To markup destructors that coverity warns might throw exceptions which won't throw in practice,...
Definition: types.h:349
SAL_OVERRIDE
#define SAL_OVERRIDE
C++11 "override" feature.
Definition: types.h:391
alloc.h
rtl_freeMemory
SAL_DLLPUBLIC void rtl_freeMemory(void *Ptr) SAL_THROW_EXTERN_C()
Free memory.
rtl_allocateMemory
SAL_DLLPUBLIC void * rtl_allocateMemory(sal_Size Bytes) SAL_THROW_EXTERN_C()
Allocate memory.
interlck.h
oslInterlockedCount
sal_Int32 oslInterlockedCount
Definition: interlck.h:44
cppuhelperdllapi.h
CPPUHELPER_DLLPUBLIC
#define CPPUHELPER_DLLPUBLIC
Definition: cppuhelperdllapi.h:32
cppu
Definition: Enterable.hxx:31
com::sun::star
Definition: unotype.hxx:39
cppu::OWeakObject
Base class to implement a UNO object supporting weak references, i.e.
Definition: weak.hxx:48
cppu::OWeakObject::OWeakObject
OWeakObject(const OWeakObject &)
Dummy copy constructor.
Definition: weak.hxx:114
cppu::OWeakObject::OWeakObject
OWeakObject()
Default Constructor.
Definition: weak.hxx:106
cppu::OWeakObject::queryInterface
virtual css::uno::Any queryInterface(const css::uno::Type &rType) SAL_OVERRIDE
Basic queryInterface() implementation supporting com::sun::star::uno::XWeak and com::sun::star::uno::...
cppu::OWeakObject::acquire
virtual void acquire() SAL_NOEXCEPT SAL_OVERRIDE
increasing m_refCount
cppu::OWeakObject::~OWeakObject
virtual ~OWeakObject() COVERITY_NOEXCEPT_FALSE
Virtual dtor.