LibreOffice: cppuhelper/weak.hxx Source File

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weak.hxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
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8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
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15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19 #ifndef INCLUDED_CPPUHELPER_WEAK_HXX
20 #define INCLUDED_CPPUHELPER_WEAK_HXX
21
22 #include <cassert>
23 #include <cstddef>
24 #include "osl/interlck.h"
25 #include "rtl/alloc.h"
26 #include "com/sun/star/uno/XWeak.hpp"
27 #include "cppuhelper/cppuhelperdllapi.h"
28
29
30 namespace cppu
31 {
32
33 class OWeakConnectionPoint;
34
43 class CPPUHELPER_DLLPUBLIC OWeakObject : public css::uno::XWeak
44 {
45 friend class OWeakConnectionPoint;
46
47 protected:
54 virtual ~OWeakObject() COVERITY_NOEXCEPT_FALSE;
55
60 void disposeWeakConnectionPoint();
61
67 oslInterlockedCount m_refCount;
68
70
73 OWeakConnectionPoint * m_pWeakConnectionPoint;
74
77 void * m_pReserved;
78
80
81 public:
83 // these are here to force memory de/allocation to sal lib.
84 static void * SAL_CALL operator new( size_t nSize )
85 { return ::rtl_allocateMemory( nSize ); }
86 static void SAL_CALL operator delete( void * pMem )
87 { ::rtl_freeMemory( pMem ); }
88 static void * SAL_CALL operator new( size_t, void * pMem )
89 { return pMem; }
90 static void SAL_CALL operator delete( void *, void * )
91 {}
93
94 #ifdef _MSC_VER
98 OWeakObject();
99 #else
102 OWeakObject()
103 : m_refCount( 0 )
104 , m_pWeakConnectionPoint( NULL )
105 , m_pReserved(NULL)
106 {}
107 #endif
110 OWeakObject( const OWeakObject & )
111 : css::uno::XWeak()
112 , m_refCount( 0 )
113 , m_pWeakConnectionPoint( NULL )
114 , m_pReserved(NULL)
115 {}
120 OWeakObject & SAL_CALL operator = ( const OWeakObject &)
121 { return *this; }
122
129 virtual css::uno::Any SAL_CALL queryInterface(
130 const css::uno::Type & rType ) SAL_OVERRIDE;
133 virtual void SAL_CALL acquire()
134 throw () SAL_OVERRIDE;
137 virtual void SAL_CALL release()
138 throw () SAL_OVERRIDE;
139
144 virtual css::uno::Reference< css::uno::XAdapter > SAL_CALL queryAdapter() SAL_OVERRIDE;
145
150 SAL_CALL operator css::uno::Reference< css::uno::XInterface > ()
151 { return this; }
152 };
153
155
166 static inline css::uno::XInterface * acquire(OWeakObject * instance)
167 {
168 assert(instance != NULL);
169 instance->acquire();
170 return instance;
171 }
173
174 }
175
176 #endif
177
178 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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:333
SAL_OVERRIDE
#define SAL_OVERRIDE
C++11 "override" feature.
Definition: types.h:387
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:40
cppuhelperdllapi.h
CPPUHELPER_DLLPUBLIC
#define CPPUHELPER_DLLPUBLIC
Definition: cppuhelperdllapi.h:28
com::sun::star
Definition: types.h:355
cppu
Definition: Enterable.hxx:27
cppu::OWeakObject
Base class to implement a UNO object supporting weak references, i.e.
Definition: weak.hxx:44
cppu::OWeakObject::OWeakObject
OWeakObject(const OWeakObject &)
Dummy copy constructor.
Definition: weak.hxx:110
cppu::OWeakObject::OWeakObject
OWeakObject()
Default Constructor.
Definition: weak.hxx:102
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_OVERRIDE
increasing m_refCount
cppu::OWeakObject::~OWeakObject
virtual ~OWeakObject() COVERITY_NOEXCEPT_FALSE
Virtual dtor.