b9337e22ce
see https://gerrit.libreoffice.org/#/c/3367/ and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a
256 lines
10 KiB
C++
256 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef _REF_HXX
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#define _REF_HXX
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#include "tools/toolsdllapi.h"
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#include <vector>
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#define PRV_SV_IMPL_REF_COUNTERS( ClassName, Ref, AddRef, AddNextRef, ReleaseRef, Init, pRefbase ) \
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inline ClassName##Ref::ClassName##Ref( const ClassName##Ref & rObj ) \
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{ pObj = rObj.pObj; if( pObj ) { Init pRefbase->AddNextRef; } } \
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inline ClassName##Ref::ClassName##Ref( ClassName * pObjP ) \
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{ pObj = pObjP; if( pObj ) { Init pRefbase->AddRef; } } \
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inline void ClassName##Ref::Clear() \
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{ \
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if( pObj ) \
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{ \
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ClassName* const pRefObj = pRefbase; \
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pObj = 0; \
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pRefObj->ReleaseRef; \
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} \
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} \
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inline ClassName##Ref::~ClassName##Ref() \
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{ if( pObj ) { pRefbase->ReleaseRef; } } \
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inline ClassName##Ref & ClassName##Ref:: \
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operator = ( const ClassName##Ref & rObj ) \
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{ \
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if( rObj.pObj ) rObj.pRefbase->AddNextRef; \
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ClassName* const pRefObj = pRefbase; \
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pObj = rObj.pObj; \
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Init if( pRefObj ) { pRefObj->ReleaseRef; } \
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return *this; \
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} \
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inline ClassName##Ref & ClassName##Ref::operator = ( ClassName * pObjP ) \
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{ return *this = ClassName##Ref( pObjP ); }
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#define PRV_SV_DECL_REF_LOCK(ClassName, Ref) \
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protected: \
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ClassName * pObj; \
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public: \
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inline ClassName##Ref() { pObj = 0; } \
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inline ClassName##Ref( const ClassName##Ref & rObj ); \
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inline ClassName##Ref( ClassName * pObjP ); \
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inline void Clear(); \
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inline ~ClassName##Ref(); \
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inline ClassName##Ref & operator = ( const ClassName##Ref & rObj ); \
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inline ClassName##Ref & operator = ( ClassName * pObj ); \
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inline sal_Bool Is() const { return pObj != NULL; } \
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inline ClassName * operator & () const { return pObj; } \
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inline ClassName * operator -> () const { return pObj; } \
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inline ClassName & operator * () const { return *pObj; } \
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inline operator ClassName * () const { return pObj; }
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#define PRV_SV_DECL_REF( ClassName ) \
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PRV_SV_DECL_REF_LOCK( ClassName, Ref )
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#define SV_DECL_REF( ClassName ) \
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class ClassName; \
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class ClassName##Ref \
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{ \
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PRV_SV_DECL_REF( ClassName ) \
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};
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#define SV_DECL_LOCK( ClassName ) \
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class ClassName; \
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class ClassName##Lock \
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{ \
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PRV_SV_DECL_REF_LOCK( ClassName, Lock ) \
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};
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#define SV_IMPL_REF( ClassName ) \
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PRV_SV_IMPL_REF_COUNTERS( ClassName, Ref, AddRef(), AddNextRef(),\
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ReleaseReference(), EMPTYARG, pObj )
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#define SV_IMPL_LOCK( ClassName ) \
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PRV_SV_IMPL_REF_COUNTERS( ClassName, Lock, OwnerLock( sal_True ), \
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OwnerLock( sal_True ), OwnerLock( sal_False ), \
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EMPTYARG, pObj )
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#define SV_DECL_IMPL_REF(ClassName) \
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SV_DECL_REF(ClassName) \
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SV_IMPL_REF(ClassName)
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template<typename T>
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class SvRefMemberList : private std::vector<T>
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{
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private:
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typedef typename std::vector<T> base_t;
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public:
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using base_t::size;
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using base_t::front;
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using base_t::back;
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using base_t::operator[];
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using base_t::begin;
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using base_t::end;
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using typename base_t::iterator;
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using typename base_t::const_iterator;
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using base_t::rbegin;
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using base_t::rend;
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using typename base_t::reverse_iterator;
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using base_t::empty;
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inline ~SvRefMemberList() { clear(); }
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inline void clear()
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{
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for( typename base_t::const_iterator it = base_t::begin(); it != base_t::end(); ++it )
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{
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T p = *it;
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if( p )
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p->ReleaseReference();
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}
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base_t::clear();
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}
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inline void push_back( T p )
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{
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base_t::push_back( p );
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p->AddRef();
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}
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inline void insert(const SvRefMemberList& rOther)
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{
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for( typename base_t::const_iterator it = rOther.begin(); it != rOther.end(); ++it )
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{
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push_back(*it);
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}
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}
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inline T pop_back()
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{
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T p = base_t::back();
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base_t::pop_back();
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if( p )
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p->ReleaseReference();
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return p;
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}
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};
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#define SV_NO_DELETE_REFCOUNT 0x80000000
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class TOOLS_DLLPUBLIC SvRefBase
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{
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sal_uIntPtr nRefCount;
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protected:
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virtual ~SvRefBase();
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virtual void QueryDelete();
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public:
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SvRefBase() { nRefCount = SV_NO_DELETE_REFCOUNT; }
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SvRefBase( const SvRefBase & /* rObj */ )
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{ nRefCount = SV_NO_DELETE_REFCOUNT; }
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SvRefBase & operator = ( const SvRefBase & ) { return *this; }
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void RestoreNoDelete()
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{
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if( nRefCount < SV_NO_DELETE_REFCOUNT )
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nRefCount += SV_NO_DELETE_REFCOUNT;
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}
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sal_uIntPtr AddMulRef( sal_uIntPtr n ) { return nRefCount += n; }
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sal_uIntPtr AddNextRef() { return ++nRefCount; }
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sal_uIntPtr AddRef()
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{
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if( nRefCount >= SV_NO_DELETE_REFCOUNT )
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nRefCount -= SV_NO_DELETE_REFCOUNT;
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return ++nRefCount;
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}
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void ReleaseReference()
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{
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if( !--nRefCount )
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QueryDelete();
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}
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sal_uIntPtr ReleaseRef()
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{
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sal_uIntPtr n = --nRefCount;
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if( !n )
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QueryDelete();
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return n;
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}
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sal_uIntPtr GetRefCount() const { return nRefCount; }
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};
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#ifndef EMPTYARG
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#define EMPTYARG
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#endif
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SV_DECL_IMPL_REF(SvRefBase)
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class SvCompatWeakHdl : public SvRefBase
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{
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friend class SvCompatWeakBase;
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void* _pObj;
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SvCompatWeakHdl( void* pObj ) : _pObj( pObj ) {}
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public:
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void ResetWeakBase( ) { _pObj = 0; }
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void* GetObj() { return _pObj; }
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};
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SV_DECL_IMPL_REF( SvCompatWeakHdl )
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class SvCompatWeakBase
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{
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SvCompatWeakHdlRef _xHdl;
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public:
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SvCompatWeakHdl* GetHdl() { return _xHdl; }
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// does not use Initalizer due to compiler warnings
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SvCompatWeakBase( void* pObj ) { _xHdl = new SvCompatWeakHdl( pObj ); }
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~SvCompatWeakBase() { _xHdl->ResetWeakBase(); }
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};
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#define SV_DECL_COMPAT_WEAK( ClassName ) \
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class ClassName##Weak \
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{ \
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SvCompatWeakHdlRef _xHdl; \
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public: \
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inline ClassName##Weak( ) {} \
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inline ClassName##Weak( ClassName* pObj ) { \
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if( pObj ) _xHdl = pObj->GetHdl(); } \
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inline void Clear() { _xHdl.Clear(); } \
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inline ClassName##Weak& operator = ( ClassName * pObj ) { \
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_xHdl = pObj ? pObj->GetHdl() : 0; return *this; } \
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inline sal_Bool Is() const { \
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return _xHdl.Is() && _xHdl->GetObj(); } \
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inline ClassName * operator & () const { \
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return (ClassName*) ( _xHdl.Is() ? _xHdl->GetObj() : 0 ); } \
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inline ClassName * operator -> () const { \
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return (ClassName*) ( _xHdl.Is() ? _xHdl->GetObj() : 0 ); } \
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inline ClassName & operator * () const { \
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return *(ClassName*) _xHdl->GetObj(); } \
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inline operator ClassName * () const { \
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return (ClassName*) (_xHdl.Is() ? _xHdl->GetObj() : 0 ); } \
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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