6c7659b584
Change-Id: Ib48a12e902f2311c295b2007f08f44dee28f431d Reviewed-on: https://gerrit.libreoffice.org/3499 Reviewed-by: David Tardon <dtardon@redhat.com> Tested-by: David Tardon <dtardon@redhat.com>
296 lines
12 KiB
C++
296 lines
12 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 _CPPUHELPER_IMPLBASE_HXX_
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#define _CPPUHELPER_IMPLBASE_HXX_
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#include <osl/mutex.hxx>
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#include <cppuhelper/weak.hxx>
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#include <cppuhelper/weakagg.hxx>
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#include <rtl/instance.hxx>
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#include <com/sun/star/lang/XTypeProvider.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include "cppuhelperdllapi.h"
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/* This header should not be used anymore.
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@deprecated
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*/
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/// @cond INTERNAL
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namespace cppu
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{
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/** Struct used for inline template implementation helpers: type entries.
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Not for public use.
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*/
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struct Type_Offset
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{
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/** binary offset of vtable pointer from object base
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*/
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sal_Int32 nOffset;
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/** interface type description of interface entry
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*/
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typelib_InterfaceTypeDescription * pTD;
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};
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/** Struct used for inline template implementation helpers: class data of implementation.
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Not for public use.
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*/
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struct CPPUHELPER_DLLPUBLIC ClassDataBase
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{
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/** determines whether the class data has been statically initialized
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*/
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sal_Bool bOffsetsInit;
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/** length of static array ClassDataN
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*/
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sal_Int32 nType2Offset;
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/** class code determines which standard types are supported (and returned on
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com.sun.star.lang.XTypeProvider::getTypes()) by the helper:
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- 1 -- com.sun.star.uno.XWeak
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- 2 -- com.sun.star.uno.XWeak, com.sun.star.uno.XAggregation
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- 3 -- com.sun.star.uno.XWeak, com.sun.star.uno.XAggregation, com.sun.star.lang.XComponent
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- 4 -- com.sun.star.uno.XWeak, com.sun.star.lang.XComponent
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*/
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sal_Int32 nClassCode;
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/** pointer to types sequence (com.sun.star.lang.XTypeProvider)
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*/
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::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > * pTypes;
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/** pointer to class id (com.sun.star.lang.XTypeProvider)
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*/
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::com::sun::star::uno::Sequence< sal_Int8 > * pId;
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/** def ctor
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*/
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ClassDataBase() SAL_THROW(());
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/** class code ctor
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@param nClassCode class code, see ClassDataBase::nClassCode
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*/
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ClassDataBase( sal_Int32 nClassCode ) SAL_THROW(());
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/** dtor
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*/
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~ClassDataBase() SAL_THROW(());
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};
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/** Struct used for inline template implementation helpers:
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There will be versions of this struct with varying arType2Offset[] array sizes, each of which
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is binary compatible with this one to be casted and used uniform. The size of the varying array
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is set in ClassDataBase::nType2Offset (base class).
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Not for public use.
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*/
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struct CPPUHELPER_DLLPUBLIC ClassData : public ClassDataBase
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{
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/** type entries array
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*/
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Type_Offset arType2Offset[1];
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/** init call for supporting com.sun.star.lang.XTypeProvider
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*/
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void SAL_CALL initTypeProvider() SAL_THROW(());
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/** initial writing type offsets for vtables
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@param rType type of interface
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@param nOffset offset to vtable entry
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*/
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void SAL_CALL writeTypeOffset( const ::com::sun::star::uno::Type & rType, sal_Int32 nOffset )
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SAL_THROW(());
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/** Queries for an interface.
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@param rType demanded interface type
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@pBase base this pointer related when writing type offsets (writeTypeOffset())
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@return demanded interface or empty any
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*/
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::com::sun::star::uno::Any SAL_CALL query(
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const ::com::sun::star::uno::Type & rType, ::com::sun::star::lang::XTypeProvider * pBase )
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SAL_THROW(());
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/** Gets the types for supporting com.sun.star.lang.XTypeProvider
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@return sequence of types supported
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*/
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::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes()
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SAL_THROW(());
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/** Gets the class id of implementation supporting com.sun.star.lang.XTypeProvider
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@return class identifier (sequence< byte >)
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*/
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::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId()
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SAL_THROW(());
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};
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/** Shared mutex for implementation helper initialization.
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Not for public use.
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*/
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CPPUHELPER_DLLPUBLIC ::osl::Mutex & SAL_CALL getImplHelperInitMutex(void) SAL_THROW(());
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}
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//
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// settle down beavis, here comes the macro template hell :]
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//
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//==================================================================================================
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#if defined _MSC_VER // public -> protected changes mangled names there
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#define CPPUHELPER_DETAIL_IMPLHELPER_PROTECTED public
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#else
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#define CPPUHELPER_DETAIL_IMPLHELPER_PROTECTED protected
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#endif
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/** Implementation helper macros
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Not for common use. There are expanded forms of the macro usage in implbaseN.hxx/compbaseN.hxx.
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So there is commonly no need to use these macros. Though, you may need to implement more than
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12 interfaces. Then you have to declare something like the following in your headers
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(where N is your demanded number of interfaces):
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#define __IFC3 Ifc1, Ifc2, Ifc3, ... up to N
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#define __CLASS_IFC3 class Ifc1, class Ifc2, class Ifc3, ... up to N
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#define __PUBLIC_IFC3 public Ifc1, public Ifc2, public Ifc3, ... up to N
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__DEF_IMPLHELPER_PRE( N )
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__IFC_WRITEOFFSET( 1 ) __IFC_WRITEOFFSET( 2 ) __IFC_WRITEOFFSET( 3 ), ... up to N
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__DEF_IMPLHELPER_POST( N )
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*/
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#define __DEF_IMPLHELPER_PRE( N ) \
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namespace cppu \
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{ \
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struct ClassData##N : public ClassDataBase \
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{ \
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Type_Offset arType2Offset[ N ]; \
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ClassData##N( sal_Int32 nInClassCode ) SAL_THROW(()) \
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: ClassDataBase( nInClassCode ) \
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{} \
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}; \
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template< __CLASS_IFC##N > \
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class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE ImplHelperBase##N \
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: public ::com::sun::star::lang::XTypeProvider \
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, __PUBLIC_IFC##N \
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{ \
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CPPUHELPER_DETAIL_IMPLHELPER_PROTECTED: \
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~ImplHelperBase##N() throw () {} \
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protected: \
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ClassData & SAL_CALL getClassData( ClassDataBase & s_aCD ) SAL_THROW(()) \
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{ \
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ClassData & rCD = * static_cast< ClassData * >( &s_aCD ); \
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if (! rCD.bOffsetsInit) \
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{ \
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::osl::MutexGuard aGuard( getImplHelperInitMutex() ); \
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if (! rCD.bOffsetsInit) \
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{ \
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char * pBase = (char *)this;
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/** Implementation helper macro: have a look at __DEF_IMPLHELPER_PRE
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*/
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#define __IFC_WRITEOFFSET( N ) \
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rCD.writeTypeOffset( ::getCppuType( (const ::com::sun::star::uno::Reference< Ifc##N > *)0 ), \
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(char *)(Ifc##N *)this - pBase );
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/** Implementation helper macro: have a look at __DEF_IMPLHELPER_PRE
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*/
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#define __DEF_IMPLHELPER_POST_A( N ) \
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rCD.bOffsetsInit = sal_True; \
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} \
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} \
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return rCD; \
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} \
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}; \
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template< __CLASS_IFC##N > \
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class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE ImplHelper##N \
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: public ImplHelperBase##N< __IFC##N > \
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{ \
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static ClassData##N s_aCD; \
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public: \
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virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type & rType ) throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).query( rType, (ImplHelperBase##N< __IFC##N > *)this ); } \
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getTypes(); } \
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virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getImplementationId(); } \
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CPPUHELPER_DETAIL_IMPLHELPER_PROTECTED: \
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~ImplHelper##N() throw () {} \
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}; \
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template< __CLASS_IFC##N > \
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class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE WeakImplHelper##N \
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: public ::cppu::OWeakObject \
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, public ImplHelperBase##N< __IFC##N > \
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{ \
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static ClassData##N s_aCD; \
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public: \
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virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type & rType ) throw (::com::sun::star::uno::RuntimeException) \
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{ \
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::com::sun::star::uno::Any aRet( this->getClassData( s_aCD ).query( rType, (ImplHelperBase##N< __IFC##N > *)this ) ); \
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return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType )); \
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} \
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virtual void SAL_CALL acquire() throw () \
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{ OWeakObject::acquire(); } \
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virtual void SAL_CALL release() throw () \
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{ OWeakObject::release(); } \
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getTypes(); } \
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virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getImplementationId(); } \
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}; \
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template< __CLASS_IFC##N > \
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class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE WeakAggImplHelper##N \
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: public ::cppu::OWeakAggObject \
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, public ImplHelperBase##N< __IFC##N > \
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{ \
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static ClassData##N s_aCD; \
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public: \
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virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type & rType ) throw (::com::sun::star::uno::RuntimeException) \
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{ return OWeakAggObject::queryInterface( rType ); } \
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virtual ::com::sun::star::uno::Any SAL_CALL queryAggregation( const ::com::sun::star::uno::Type & rType ) throw (::com::sun::star::uno::RuntimeException) \
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{ \
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::com::sun::star::uno::Any aRet( this->getClassData( s_aCD ).query( rType, (ImplHelperBase##N< __IFC##N > *)this ) ); \
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return (aRet.hasValue() ? aRet : OWeakAggObject::queryAggregation( rType )); \
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} \
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virtual void SAL_CALL acquire() throw () \
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{ OWeakAggObject::acquire(); } \
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virtual void SAL_CALL release() throw () \
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{ OWeakAggObject::release(); } \
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getTypes(); } \
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virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() throw (::com::sun::star::uno::RuntimeException) \
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{ return this->getClassData( s_aCD ).getImplementationId(); } \
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};
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/** Implementation helper macro: have a look at __DEF_IMPLHELPER_PRE
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*/
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#define __DEF_IMPLHELPER_POST_B( N ) \
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template< __CLASS_IFC##N > \
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ClassData##N ImplHelper##N< __IFC##N >::s_aCD = ClassData##N( 0 ); \
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template< __CLASS_IFC##N > \
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ClassData##N WeakImplHelper##N< __IFC##N >::s_aCD = ClassData##N( 1 ); \
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template< __CLASS_IFC##N > \
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ClassData##N WeakAggImplHelper##N< __IFC##N >::s_aCD = ClassData##N( 2 );
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/** Implementation helper macro: have a look at __DEF_IMPLHELPER_PRE
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*/
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#define __DEF_IMPLHELPER_POST_C( N ) \
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}
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//==================================================================================================
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/** Implementation helper macro: have a look at __DEF_IMPLHELPER_PRE
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*/
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#define __DEF_IMPLHELPER_POST( N ) \
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__DEF_IMPLHELPER_POST_A( N ) \
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__DEF_IMPLHELPER_POST_B( N ) \
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__DEF_IMPLHELPER_POST_C( N )
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/// @endcond
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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