Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 113, column 13
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name RelationController.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D DBACCESS_DLLIMPLEMENTATION -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/external/unixODBC/inc -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/dbaccess/inc -I /home/maarten/src/libreoffice/core/dbaccess/source/inc -I /home/maarten/src/libreoffice/core/dbaccess/source/ui/inc -I /home/maarten/src/libreoffice/core/workdir/YaccTarget/connectivity/source/parse -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx

/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
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
20#include <sal/config.h>
21
22#include <iterator>
23#include <map>
24
25#include <strings.hrc>
26#include <strings.hxx>
27#include <vcl/svapp.hxx>
28#include <vcl/weld.hxx>
29#include <browserids.hxx>
30#include <comphelper/types.hxx>
31#include <core_resource.hxx>
32#include <connectivity/dbtools.hxx>
33#include <comphelper/processfactory.hxx>
34#include <com/sun/star/sdbcx/XTablesSupplier.hpp>
35#include <com/sun/star/sdbcx/KeyType.hpp>
36#include <com/sun/star/sdbcx/XKeysSupplier.hpp>
37#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
38#include <com/sun/star/sdbc/SQLException.hpp>
39#include <com/sun/star/sdbc/XRow.hpp>
40#include <connectivity/dbexception.hxx>
41#include <connectivity/dbmetadata.hxx>
42#include <sqlmessage.hxx>
43#include <RelationController.hxx>
44#include <TableWindowData.hxx>
45#include <UITools.hxx>
46#include <RTableConnectionData.hxx>
47#include <RelationTableView.hxx>
48#include <RelationDesignView.hxx>
49#include <tools/diagnose_ex.h>
50#include <osl/thread.hxx>
51#include <osl/mutex.hxx>
52
53#define MAX_THREADS10 10
54
55extern "C" SAL_DLLPUBLIC_EXPORT__attribute__ ((visibility("default"))) css::uno::XInterface*
56org_openoffice_comp_dbu_ORelationDesign_get_implementation(
57 css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& )
58{
59 return cppu::acquire(new ::dbaui::ORelationController(context));
60}
61
62using namespace ::com::sun::star::uno;
63using namespace ::com::sun::star::io;
64using namespace ::com::sun::star::beans;
65using namespace ::com::sun::star::frame;
66using namespace ::com::sun::star::lang;
67using namespace ::com::sun::star::container;
68using namespace ::com::sun::star::sdbcx;
69using namespace ::com::sun::star::sdbc;
70using namespace ::com::sun::star::sdb;
71using namespace ::com::sun::star::ui::dialogs;
72using namespace ::com::sun::star::util;
73using namespace ::dbtools;
74using namespace ::dbaui;
75using namespace ::comphelper;
76using namespace ::osl;
77
78OUString SAL_CALL ORelationController::getImplementationName()
79{
80 return "org.openoffice.comp.dbu.ORelationDesign";
81}
82
83Sequence< OUString> SAL_CALL ORelationController::getSupportedServiceNames()
84{
85 return { "com.sun.star.sdb.RelationDesign" };
86}
87
88ORelationController::ORelationController(const Reference< XComponentContext >& _rM)
89 : OJoinController(_rM)
90 ,m_nThreadEvent(0)
91 ,m_bRelationsPossible(true)
92{
93 InvalidateAll();
94}
95
96ORelationController::~ORelationController()
97{
98}
99
100FeatureState ORelationController::GetState(sal_uInt16 _nId) const
101{
102 FeatureState aReturn;
103 aReturn.bEnabled = m_bRelationsPossible;
104 switch (_nId)
105 {
106 case SID_RELATION_ADD_RELATION( ((((((((10000 + 1499) + 1) + 499) + 1) + 100) + 1) + 149) +
1) + 45 ):
107 aReturn.bEnabled = !m_vTableData.empty() && isConnected() && isEditable();
108 aReturn.bChecked = false;
109 break;
110 case ID_BROWSER_SAVEDOC(5000 + 505):
111 aReturn.bEnabled = haveDataSource() && impl_isModified();
112 break;
113 default:
114 aReturn = OJoinController::GetState(_nId);
115 break;
116 }
117 return aReturn;
118}
119
120void ORelationController::Execute(sal_uInt16 _nId, const Sequence< PropertyValue >& aArgs)
121{
122 switch(_nId)
123 {
124 case ID_BROWSER_SAVEDOC(5000 + 505):
125 {
126 OSL_ENSURE(isEditable(),"Slot ID_BROWSER_SAVEDOC should not be enabled!")do { if (true && (!(isEditable()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "126" ": "), "%s", "Slot ID_BROWSER_SAVEDOC should not be enabled!"
); } } while (false);
127 if(!::dbaui::checkDataSourceAvailable(::comphelper::getString(getDataSource()->getPropertyValue(PROPERTY_NAME"Name")), getORB()))
128 {
129 OUString aMessage(DBA_RES(STR_DATASOURCE_DELETED)::dbaccess::ResourceManager::loadString( reinterpret_cast<
char const *>("STR_DATASOURCE_DELETED" "\004" u8"The corresponding data source has been deleted. Therefore, data relevant to that data source cannot be saved."
) ));
130 OSQLWarningBox aWarning(getFrameWeld(), aMessage);
131 aWarning.run();
132 }
133 else
134 {
135 // now we save the layout information
136 // create the output stream
137 try
138 {
139 if ( haveDataSource() && getDataSource()->getPropertySetInfo()->hasPropertyByName(PROPERTY_LAYOUTINFORMATION"LayoutInformation") )
140 {
141 ::comphelper::NamedValueCollection aWindowsData;
142 saveTableWindows( aWindowsData );
143 getDataSource()->setPropertyValue( PROPERTY_LAYOUTINFORMATION"LayoutInformation", makeAny( aWindowsData.getPropertyValues() ) );
144 setModified(false);
145 }
146 }
147 catch ( const Exception& )
148 {
149 DBG_UNHANDLED_EXCEPTION("dbaccess")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "149" ": ", "dbaccess" );;
150 }
151 }
152 }
153 break;
154 case SID_RELATION_ADD_RELATION( ((((((((10000 + 1499) + 1) + 499) + 1) + 100) + 1) + 149) +
1) + 45 ):
155 static_cast<ORelationTableView*>(static_cast<ORelationDesignView*>( getView() )->getTableView())->AddNewRelation();
156 break;
157 default:
158 OJoinController::Execute(_nId,aArgs);
159 return;
160 }
161 InvalidateFeature(_nId);
162}
163
164void ORelationController::impl_initialize()
165{
166 OJoinController::impl_initialize();
167
168 if( !getSdbMetaData().supportsRelations() )
169 {// check if this database supports relations
170
171 setEditable(false);
172 m_bRelationsPossible = false;
173 {
174 OUString sTitle(DBA_RES(STR_RELATIONDESIGN)::dbaccess::ResourceManager::loadString( reinterpret_cast<
char const *>("STR_RELATIONDESIGN" "\004" u8" - %PRODUCTNAME Base: Relation design"
) ));
175 sTitle = sTitle.copy(3);
176 OSQLMessageBox aDlg(getFrameWeld(), sTitle, DBA_RES(STR_RELATIONDESIGN_NOT_AVAILABLE)::dbaccess::ResourceManager::loadString( reinterpret_cast<
char const *>("STR_RELATIONDESIGN_NOT_AVAILABLE" "\004" u8"The database does not support relations."
) ));
177 aDlg.run();
178 }
179 disconnect();
180 throw SQLException();
181 }
182
183 if(!m_bRelationsPossible)
184 InvalidateAll();
185
186 // we need a datasource
187 OSL_ENSURE(haveDataSource(),"ORelationController::initialize: need a datasource!")do { if (true && (!(haveDataSource()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "187" ": "), "%s", "ORelationController::initialize: need a datasource!"
); } } while (false);
188
189 Reference<XTablesSupplier> xSup(getConnection(),UNO_QUERY);
190 OSL_ENSURE(xSup.is(),"Connection isn't a XTablesSupplier!")do { if (true && (!(xSup.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "190" ": "), "%s", "Connection isn't a XTablesSupplier!"
); } } while (false);
191 if(xSup.is())
192 m_xTables = xSup->getTables();
193 // load the layoutInformation
194 loadLayoutInformation();
195 try
196 {
197 loadData();
198 if ( !m_nThreadEvent )
199 Application::PostUserEvent(LINK(this, ORelationController, OnThreadFinished)::tools::detail::makeLink( ::tools::detail::castTo<ORelationController
*>(this), &ORelationController::LinkStubOnThreadFinished
));
200 }
201 catch( const Exception& )
202 {
203 DBG_UNHANDLED_EXCEPTION("dbaccess")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "203" ": ", "dbaccess" );;
204 }
205
206}
207
208OUString ORelationController::getPrivateTitle( ) const
209{
210 OUString sName = getDataSourceName();
211 return ::dbaui::getStrippedDatabaseName(getDataSource(),sName);
212}
213
214bool ORelationController::Construct(vcl::Window* pParent)
215{
216 setView( VclPtr<ORelationDesignView>::Create( pParent, *this, getORB() ) );
1
Calling 'VclPtr::Create'
→
3
←
Returned allocated memory
→
4
←
Calling implicit destructor for 'VclPtr<dbaui::ODataView>'
→
5
←
Calling '~Reference'
→
12
←
Returning from '~Reference'
→
13
←
Returning from destructor for 'VclPtr<dbaui::ODataView>'
→
14
←
Calling implicit destructor for 'VclPtr<dbaui::ORelationDesignView>'
→
15
←
Calling '~Reference'
→
217 OJoinController::Construct(pParent);
218 return true;
219}
220
221short ORelationController::saveModified()
222{
223 short nSaved = RET_YES;
224 if(haveDataSource() && isModified())
225 {
226 std::unique_ptr<weld::Builder> xBuilder(Application::CreateBuilder(getFrameWeld(), "dbaccess/ui/designsavemodifieddialog.ui"));
227 std::unique_ptr<weld::MessageDialog> xQuery(xBuilder->weld_message_dialog("DesignSaveModifiedDialog"));
228 nSaved = xQuery->run();
229 if(nSaved == RET_YES)
230 Execute(ID_BROWSER_SAVEDOC(5000 + 505),Sequence<PropertyValue>());
231 }
232 return nSaved;
233}
234
235void ORelationController::describeSupportedFeatures()
236{
237 OJoinController::describeSupportedFeatures();
238 implDescribeSupportedFeature( ".uno:DBAddRelation", SID_RELATION_ADD_RELATION( ((((((((10000 + 1499) + 1) + 499) + 1) + 100) + 1) + 149) +
1) + 45 ), CommandGroup::EDIT );
239}
240
241namespace
242{
243 class RelationLoader : public ::osl::Thread
244 {
245 typedef std::map<OUString, std::shared_ptr<OTableWindowData>, ::comphelper::UStringMixLess> TTableDataHelper;
246 TTableDataHelper m_aTableData;
247 TTableConnectionData m_vTableConnectionData;
248 const Sequence< OUString> m_aTableList;
249 ORelationController* m_pParent;
250 const Reference< XDatabaseMetaData> m_xMetaData;
251 const Reference< XNameAccess > m_xTables;
252 const sal_Int32 m_nStartIndex;
253 const sal_Int32 m_nEndIndex;
254
255 public:
256 RelationLoader(ORelationController* _pParent
257 ,const Reference< XDatabaseMetaData>& _xMetaData
258 ,const Reference< XNameAccess >& _xTables
259 ,const Sequence< OUString>& _aTableList
260 ,const sal_Int32 _nStartIndex
261 ,const sal_Int32 _nEndIndex)
262 :m_aTableData(_xMetaData.is() && _xMetaData->supportsMixedCaseQuotedIdentifiers())
263 ,m_aTableList(_aTableList)
264 ,m_pParent(_pParent)
265 ,m_xMetaData(_xMetaData)
266 ,m_xTables(_xTables)
267 ,m_nStartIndex(_nStartIndex)
268 ,m_nEndIndex(_nEndIndex)
269 {
270 }
271
272 /// Working method which should be overridden.
273 virtual void SAL_CALL run() override;
274 virtual void SAL_CALL onTerminated() override;
275 protected:
276 virtual ~RelationLoader() override {}
277
278 void loadTableData(const Any& _aTable);
279 };
280
281 void SAL_CALL RelationLoader::run()
282 {
283 osl_setThreadName("RelationLoader");
284
285 for(sal_Int32 i = m_nStartIndex; i < m_nEndIndex; ++i)
286 {
287 OUString sCatalog,sSchema,sTable;
288 ::dbtools::qualifiedNameComponents(m_xMetaData,
289 m_aTableList[i],
290 sCatalog,
291 sSchema,
292 sTable,
293 ::dbtools::EComposeRule::InDataManipulation);
294 Any aCatalog;
295 if ( !sCatalog.isEmpty() )
296 aCatalog <<= sCatalog;
297
298 try
299 {
300 Reference< XResultSet > xResult = m_xMetaData->getImportedKeys(aCatalog, sSchema,sTable);
301 if ( xResult.is() && xResult->next() )
302 {
303 ::comphelper::disposeComponent(xResult);
304 loadTableData(m_xTables->getByName(m_aTableList[i]));
305 }
306 }
307 catch( const Exception& )
308 {
309 DBG_UNHANDLED_EXCEPTION("dbaccess")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "309" ": ", "dbaccess" );;
310 }
311 }
312 }
313 void SAL_CALL RelationLoader::onTerminated()
314 {
315 m_pParent->mergeData(m_vTableConnectionData);
316 delete this;
317 }
318
319 void RelationLoader::loadTableData(const Any& _aTable)
320 {
321 Reference<XPropertySet> xTableProp(_aTable,UNO_QUERY);
322 const OUString sSourceName = ::dbtools::composeTableName( m_xMetaData, xTableProp, ::dbtools::EComposeRule::InTableDefinitions, false );
323 TTableDataHelper::const_iterator aFind = m_aTableData.find(sSourceName);
324 if ( aFind == m_aTableData.end() )
325 {
326 aFind = m_aTableData.emplace(sSourceName,std::make_shared<OTableWindowData>(xTableProp,sSourceName, sSourceName, OUString())).first;
327 aFind->second->ShowAll(false);
328 }
329 TTableWindowData::value_type pReferencingTable = aFind->second;
330 Reference<XIndexAccess> xKeys = pReferencingTable->getKeys();
331 const Reference<XKeysSupplier> xKeySup(xTableProp,UNO_QUERY);
332
333 if ( !xKeys.is() && xKeySup.is() )
334 {
335 xKeys = xKeySup->getKeys();
336 }
337
338 if ( !xKeys.is() )
339 return;
340
341 Reference<XPropertySet> xKey;
342 const sal_Int32 nCount = xKeys->getCount();
343 for(sal_Int32 i = 0 ; i < nCount ; ++i)
344 {
345 xKeys->getByIndex(i) >>= xKey;
346 sal_Int32 nKeyType = 0;
347 xKey->getPropertyValue(PROPERTY_TYPE"Type") >>= nKeyType;
348 if ( KeyType::FOREIGN == nKeyType )
349 {
350 OUString sReferencedTable;
351 xKey->getPropertyValue(PROPERTY_REFERENCEDTABLE"ReferencedTable") >>= sReferencedTable;
352
353 // insert windows
354 TTableDataHelper::const_iterator aRefFind = m_aTableData.find(sReferencedTable);
355 if ( aRefFind == m_aTableData.end() )
356 {
357 if ( m_xTables->hasByName(sReferencedTable) )
358 {
359 Reference<XPropertySet> xReferencedTable(m_xTables->getByName(sReferencedTable),UNO_QUERY);
360 aRefFind = m_aTableData.emplace(sReferencedTable,std::make_shared<OTableWindowData>(xReferencedTable,sReferencedTable, sReferencedTable, OUString())).first;
361 aRefFind->second->ShowAll(false);
362 }
363 else
364 continue; // table name could not be found so we do not show this table relation
365 }
366 TTableWindowData::value_type pReferencedTable = aRefFind->second;
367
368 OUString sKeyName;
369 xKey->getPropertyValue(PROPERTY_NAME"Name") >>= sKeyName;
370 // insert connection
371 auto xTabConnData = std::make_shared<ORelationTableConnectionData>( pReferencingTable, pReferencedTable, sKeyName );
372 m_vTableConnectionData.push_back(xTabConnData);
373 // insert columns
374 const Reference<XColumnsSupplier> xColsSup(xKey,UNO_QUERY);
375 OSL_ENSURE(xColsSup.is(),"Key is no XColumnsSupplier!")do { if (true && (!(xColsSup.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "375" ": "), "%s", "Key is no XColumnsSupplier!"); } } while
(false);
376 const Reference<XNameAccess> xColumns = xColsSup->getColumns();
377 const Sequence< OUString> aNames = xColumns->getElementNames();
378 OUString sColumnName,sRelatedName;
379 for(sal_Int32 j=0;j<aNames.getLength();++j)
380 {
381 const Reference<XPropertySet> xPropSet(xColumns->getByName(aNames[j]),UNO_QUERY);
382 OSL_ENSURE(xPropSet.is(),"Invalid column found in KeyColumns!")do { if (true && (!(xPropSet.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "382" ": "), "%s", "Invalid column found in KeyColumns!"
); } } while (false);
383 if ( xPropSet.is() )
384 {
385 xPropSet->getPropertyValue(PROPERTY_NAME"Name") >>= sColumnName;
386 xPropSet->getPropertyValue(PROPERTY_RELATEDCOLUMN"RelatedColumn") >>= sRelatedName;
387 }
388 xTabConnData->SetConnLine( j, sColumnName, sRelatedName );
389 }
390 // set update/del flags
391 sal_Int32 nUpdateRule = 0;
392 sal_Int32 nDeleteRule = 0;
393 xKey->getPropertyValue(PROPERTY_UPDATERULE"UpdateRule") >>= nUpdateRule;
394 xKey->getPropertyValue(PROPERTY_DELETERULE"DeleteRule") >>= nDeleteRule;
395
396 xTabConnData->SetUpdateRules( nUpdateRule );
397 xTabConnData->SetDeleteRules( nDeleteRule );
398
399 // set cardinality
400 xTabConnData->SetCardinality();
401 }
402 }
403 }
404}
405
406void ORelationController::mergeData(const TTableConnectionData& _aConnectionData)
407{
408 ::osl::MutexGuard aGuard( getMutex() );
409
410 m_vTableConnectionData.insert( m_vTableConnectionData.end(), _aConnectionData.begin(), _aConnectionData.end() );
411 // here we are finished, so we can collect the table from connection data
412 for (auto const& elem : m_vTableConnectionData)
413 {
414 if ( !existsTable(elem->getReferencingTable()->GetComposedName()) )
415 {
416 m_vTableData.push_back(elem->getReferencingTable());
417 }
418 if ( !existsTable(elem->getReferencedTable()->GetComposedName()) )
419 {
420 m_vTableData.push_back(elem->getReferencedTable());
421 }
422 }
423 if ( m_nThreadEvent )
424 {
425 --m_nThreadEvent;
426 if ( !m_nThreadEvent )
427 Application::PostUserEvent(LINK(this, ORelationController, OnThreadFinished)::tools::detail::makeLink( ::tools::detail::castTo<ORelationController
*>(this), &ORelationController::LinkStubOnThreadFinished
));
428 }
429}
430
431IMPL_LINK_NOARG( ORelationController, OnThreadFinished, void*, void )void ORelationController::LinkStubOnThreadFinished(void * instance
, void* data) { return static_cast<ORelationController *>
(instance)->OnThreadFinished(data); } void ORelationController
::OnThreadFinished(__attribute__ ((unused)) void*)
432{
433 ::SolarMutexGuard aSolarGuard;
434 ::osl::MutexGuard aGuard( getMutex() );
435 try
436 {
437 getView()->initialize(); // show the windows and fill with our information
438 getView()->Invalidate(InvalidateFlags::NoErase);
439 ClearUndoManager();
440 setModified(false); // and we are not modified yet
441
442 if(m_vTableData.empty())
443 Execute(ID_BROWSER_ADDTABLE( 10000 + 722 ),Sequence<PropertyValue>());
444 }
445 catch( const Exception& )
446 {
447 DBG_UNHANDLED_EXCEPTION("dbaccess")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "447" ": ", "dbaccess" );;
448 }
449 m_xWaitObject.reset();
450}
451
452void ORelationController::loadData()
453{
454 m_xWaitObject.reset(new weld::WaitObject(getFrameWeld()));
455 try
456 {
457 if ( !m_xTables.is() )
458 return;
459 DatabaseMetaData aMeta(getConnection());
460 // this may take some time
461 const Reference< XDatabaseMetaData> xMetaData = getConnection()->getMetaData();
462 const Sequence< OUString> aNames = m_xTables->getElementNames();
463 const sal_Int32 nCount = aNames.getLength();
464 if ( aMeta.supportsThreads() )
465 {
466 const sal_Int32 nMaxElements = (nCount / MAX_THREADS10) +1;
467 sal_Int32 nStart = 0,nEnd = std::min(nMaxElements,nCount);
468 while(nStart != nEnd)
469 {
470 ++m_nThreadEvent;
471 RelationLoader* pThread = new RelationLoader(this,xMetaData,m_xTables,aNames,nStart,nEnd);
472 pThread->createSuspended();
473 pThread->setPriority(osl_Thread_PriorityBelowNormal);
474 pThread->resume();
475 nStart = nEnd;
476 nEnd += nMaxElements;
477 nEnd = std::min(nEnd,nCount);
478 }
479 }
480 else
481 {
482 RelationLoader* pThread = new RelationLoader(this,xMetaData,m_xTables,aNames,0,nCount);
483 pThread->run();
484 pThread->onTerminated();
485 }
486 }
487 catch(SQLException& e)
488 {
489 showError(SQLExceptionInfo(e));
490 }
491 catch(const Exception&)
492 {
493 DBG_UNHANDLED_EXCEPTION("dbaccess")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "493" ": ", "dbaccess" );;
494 }
495}
496
497TTableWindowData::value_type ORelationController::existsTable(const OUString& _rComposedTableName) const
498{
499 ::comphelper::UStringMixEqual bCase(true);
500 for (auto const& elem : m_vTableData)
501 {
502 if(bCase(elem->GetComposedName(),_rComposedTableName))
503 return elem;
504 }
505 return TTableWindowData::value_type();
506}
507
508void ORelationController::loadLayoutInformation()
509{
510 try
511 {
512 OSL_ENSURE(haveDataSource(),"We need a datasource from our connection!")do { if (true && (!(haveDataSource()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "512" ": "), "%s", "We need a datasource from our connection!"
); } } while (false);
513 if ( haveDataSource() )
514 {
515 if ( getDataSource()->getPropertySetInfo()->hasPropertyByName(PROPERTY_LAYOUTINFORMATION"LayoutInformation") )
516 {
517 Sequence<PropertyValue> aWindows;
518 getDataSource()->getPropertyValue(PROPERTY_LAYOUTINFORMATION"LayoutInformation") >>= aWindows;
519 loadTableWindows(aWindows);
520 }
521 }
522 }
523 catch(Exception&)
524 {
525 }
526}
527
528void ORelationController::reset()
529{
530 loadLayoutInformation();
531 ODataView* pView = getView();
532 OSL_ENSURE(pView,"No current view!")do { if (true && (!(pView))) { sal_detail_logFormat((
SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/relationdesign/RelationController.cxx"
":" "532" ": "), "%s", "No current view!"); } } while (false
);
533 if(pView)
534 {
535 pView->initialize();
536 pView->Invalidate(InvalidateFlags::NoErase);
537 }
538}
539
540bool ORelationController::allowViews() const
541{
542 return false;
543}
544
545bool ORelationController::allowQueries() const
546{
547 return false;
548}
549
550/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
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
20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX
22
23#include <sal/config.h>
24
25#include <rtl/ref.hxx>
26
27#include <utility>
28#include <type_traits>
29
30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif
35
36class VclReferenceBase;
37
38namespace vcl::detail {
39
40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }
42
43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
44 int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }
46
47} // namespace vcl::detail
48
49/**
50 * A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
51 *
52 * For more details on the design please see vcl/README.lifecycle
53 *
54 * @param reference_type must be a subclass of vcl::Window
55 */
56template <class reference_type>
57class VclPtr
58{
59 static_assert(
60 vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
61 nullptr),
62 "template argument type must be derived from VclReferenceBase");
63
64 ::rtl::Reference<reference_type> m_rInnerRef;
65
66public:
67 /** Constructor...
68 */
69 VclPtr()
70 : m_rInnerRef()
71 {}
72
73 /** Constructor...
74 */
75 VclPtr (reference_type * pBody)
76 : m_rInnerRef(pBody)
77 {}
78
79 /** Constructor... that doesn't take a ref.
80 */
81 VclPtr (reference_type * pBody, __sal_NoAcquire)
82 : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
83 {}
84
85 /** Up-casting conversion constructor: Copies interface reference.
86
87 Does not work for up-casts to ambiguous bases. For the special case of
88 up-casting to Reference< XInterface >, see the corresponding conversion
89 operator.
90
91 @param rRef another reference
92 */
93 template< class derived_type >
94 VclPtr(
95 const VclPtr< derived_type > & rRef,
96 typename std::enable_if<
97 std::is_base_of<reference_type, derived_type>::value, int>::type
98 = 0 )
99 : m_rInnerRef( static_cast<reference_type*>(rRef) )
100 {
101 }
102
103#if defined(DBG_UTIL) && !defined(_WIN32)
104 virtual ~VclPtr()
105 {
106 assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__));
107 // We can be one of the intermediate counts, but if we are the last
108 // VclPtr keeping this object alive, then something forgot to call dispose().
109 assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
110 && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__));
111 }
112 VclPtr(VclPtr const &) = default;
113 VclPtr(VclPtr &&) = default;
114 VclPtr & operator =(VclPtr const &) = default;
115 VclPtr & operator =(VclPtr &&) = default;
116#endif
117
118 /**
119 * A construction helper for VclPtr. Since VclPtr types are created
120 * with a reference-count of one - to help fit into the existing
121 * code-flow; this helps us to construct them easily.
122 *
123 * For more details on the design please see vcl/README.lifecycle
124 *
125 * @tparam reference_type must be a subclass of vcl::Window
126 */
127 template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
128 {
129 return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
2
←
Memory is allocated
→
130 }
131
132 /** Probably most common used: handle->someBodyOp().
133 */
134 reference_type * operator->() const
135 {
136 return m_rInnerRef.get();
137 }
138
139 /** Get the body. Can be used instead of operator->().
140 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
141 are the same.
142 */
143 reference_type * get() const
144 {
145 return m_rInnerRef.get();
146 }
147
148 void set(reference_type *pBody)
149 {
150 m_rInnerRef.set(pBody);
151 }
152
153 void reset(reference_type *pBody)
154 {
155 m_rInnerRef.set(pBody);
156 }
157
158 /** Up-casting copy assignment operator.
159
160 Does not work for up-casts to ambiguous bases.
161
162 @param rRef another reference
163 */
164 template<typename derived_type>
165 typename std::enable_if<
166 std::is_base_of<reference_type, derived_type>::value,
167 VclPtr &>::type
168 operator =(VclPtr<derived_type> const & rRef)
169 {
170 m_rInnerRef.set(rRef.get());
171 return *this;
172 }
173
174 VclPtr & operator =(reference_type * pBody)
175 {
176 m_rInnerRef.set(pBody);
177 return *this;
178 }
179
180 operator reference_type * () const
181 {
182 return m_rInnerRef.get();
183 }
184
185 explicit operator bool () const
186 {
187 return m_rInnerRef.get() != nullptr;
188 }
189
190 void clear()
191 {
192 m_rInnerRef.clear();
193 }
194
195 void reset()
196 {
197 m_rInnerRef.clear();
198 }
199
200 void disposeAndClear()
201 {
202 // hold it alive for the lifetime of this method
203 ::rtl::Reference<reference_type> aTmp(m_rInnerRef);
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
205 if (aTmp.get()) {
206 aTmp->disposeOnce();
207 }
208 }
209
210 /** Needed to place VclPtr's into STL collection.
211 */
212 bool operator< (const VclPtr<reference_type> & handle) const
213 {
214 return (m_rInnerRef < handle.m_rInnerRef);
215 }
216}; // class VclPtr
217
218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
220 return p1.get() == p2.get();
221}
222
223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
225 return p1.get() == p2;
226}
227
228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
229 return p1.get() == p2;
230}
231
232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
234 return p1 == p2.get();
235}
236
237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
238 return p1 == p2.get();
239}
240
241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
243 return !(p1 == p2);
244}
245
246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
248 return !(p1 == p2);
249}
250
251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
252 return !(p1 == p2);
253}
254
255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
257 return !(p1 == p2);
258}
259
260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
261 return !(p1 == p2);
262}
263
264/**
265 * A construction helper for a temporary VclPtr. Since VclPtr types
266 * are created with a reference-count of one - to help fit into
267 * the existing code-flow; this helps us to construct them easily.
268 * see also VclPtr::Create and ScopedVclPtr
269 *
270 * For more details on the design please see vcl/README.lifecycle
271 *
272 * @param reference_type must be a subclass of vcl::Window
273 */
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
278 template<typename... Arg> VclPtrInstance(Arg &&... arg)
279 : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
280 {
281 }
282
283 /**
284 * Override and disallow this, to prevent people accidentally calling it and actually
285 * getting VclPtr::Create and getting a naked VclPtr<> instance
286 */
287 template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};
289
290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
294 /** Constructor...
295 */
296 ScopedVclPtr()
297 : VclPtr<reference_type>()
298 {}
299
300 /** Constructor
301 */
302 ScopedVclPtr (reference_type * pBody)
303 : VclPtr<reference_type>(pBody)
304 {}
305
306 /** Copy constructor...
307 */
308 ScopedVclPtr (const VclPtr<reference_type> & handle)
309 : VclPtr<reference_type>(handle)
310 {}
311
312 /**
313 Assignment that releases the last reference.
314 */
315 void disposeAndReset(reference_type *pBody)
316 {
317 if (pBody != this->get()) {
318 VclPtr<reference_type>::disposeAndClear();
319 VclPtr<reference_type>::set(pBody);
320 }
321 }
322
323 /**
324 Assignment that releases the last reference.
325 */
326 ScopedVclPtr<reference_type>& operator = (reference_type * pBody)
327 {
328 disposeAndReset(pBody);
329 return *this;
330 }
331
332 /** Up-casting conversion constructor: Copies interface reference.
333
334 Does not work for up-casts to ambiguous bases. For the special case of
335 up-casting to Reference< XInterface >, see the corresponding conversion
336 operator.
337
338 @param rRef another reference
339 */
340 template< class derived_type >
341 ScopedVclPtr(
342 const VclPtr< derived_type > & rRef,
343 typename std::enable_if<
344 std::is_base_of<reference_type, derived_type>::value, int>::type
345 = 0 )
346 : VclPtr<reference_type>( rRef )
347 {
348 }
349
350 /** Up-casting assignment operator.
351
352 Does not work for up-casts to ambiguous bases.
353
354 @param rRef another VclPtr
355 */
356 template<typename derived_type>
357 typename std::enable_if<
358 std::is_base_of<reference_type, derived_type>::value,
359 ScopedVclPtr &>::type
360 operator =(VclPtr<derived_type> const & rRef)
361 {
362 disposeAndReset(rRef.get());
363 return *this;
364 }
365
366 /**
367 * Override and disallow this, to prevent people accidentally calling it and actually
368 * getting VclPtr::Create and getting a naked VclPtr<> instance
369 */
370 template<typename... Arg> static ScopedVclPtr< reference_type > Create(Arg &&... ) = delete;
371
372 ~ScopedVclPtr()
373 {
374 VclPtr<reference_type>::disposeAndClear();
375 assert(VclPtr<reference_type>::get() == nullptr)(static_cast <bool> (VclPtr<reference_type>::get(
) == nullptr) ? void (0) : __assert_fail ("VclPtr<reference_type>::get() == nullptr"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 375, __extension__ __PRETTY_FUNCTION__)); // make sure there are no lingering references
376 }
377
378private:
379 // Most likely we don't want this default copy-constructor.
380 ScopedVclPtr (const ScopedVclPtr<reference_type> &) = delete;
381 // And certainly we don't want a default assignment operator.
382 ScopedVclPtr<reference_type>& operator = (const ScopedVclPtr<reference_type> &) = delete;
383 // And disallow reset as that doesn't call disposeAndClear on the original reference
384 void reset() = delete;
385 void reset(reference_type *pBody) = delete;
386
387protected:
388 ScopedVclPtr (reference_type * pBody, __sal_NoAcquire)
389 : VclPtr<reference_type>(pBody, SAL_NO_ACQUIRE)
390 {}
391};
392
393/**
394 * A construction helper for ScopedVclPtr. Since VclPtr types are created
395 * with a reference-count of one - to help fit into the existing
396 * code-flow; this helps us to construct them easily.
397 *
398 * For more details on the design please see vcl/README.lifecycle
399 *
400 * @param reference_type must be a subclass of vcl::Window
401 */
402#if defined _MSC_VER
403#pragma warning(push)
404#pragma warning(disable: 4521) // " multiple copy constructors specified"
405#endif
406template <class reference_type>
407class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type>
408{
409public:
410 template<typename... Arg> ScopedVclPtrInstance(Arg &&... arg)
411 : ScopedVclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
412 {
413 }
414
415 /**
416 * Override and disallow this, to prevent people accidentally calling it and actually
417 * getting VclPtr::Create and getting a naked VclPtr<> instance
418 */
419 template<typename... Arg> static ScopedVclPtrInstance< reference_type > Create(Arg &&...) = delete;
420
421private:
422 // Prevent the above perfect forwarding ctor from hijacking (accidental)
423 // attempts at ScopedVclPtrInstance copy construction (where the hijacking
424 // would typically lead to somewhat obscure error messages); both non-const
425 // and const variants are needed here, as the ScopedVclPtr base class has a
426 // const--variant copy ctor, so the implicitly declared copy ctor for
427 // ScopedVclPtrInstance would also be the const variant, so non-const copy
428 // construction attempts would be hijacked by the perfect forwarding ctor;
429 // but if we only declared a non-const variant here, the const variant would
430 // no longer be implicitly declared (as there would already be an explicitly
431 // declared copy ctor), so const copy construction attempts would then be
432 // hijacked by the perfect forwarding ctor:
433 ScopedVclPtrInstance(ScopedVclPtrInstance &) = delete;
434 ScopedVclPtrInstance(ScopedVclPtrInstance const &) = delete;
435};
436#if defined _MSC_VER
437#pragma warning(pop)
438#endif
439
440#endif // INCLUDED_VCL_PTR_HXX
441
442/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
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
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody)
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody
5.1
Field 'm_pBody' is non-null
15.1
Field 'm_pBody' is non-null
5.1
Field 'm_pBody' is non-null
15.1
Field 'm_pBody' is non-null
5.1
Field 'm_pBody' is non-null
15.1
Field 'm_pBody' is non-null
5.1
Field 'm_pBody' is non-null
15.1
Field 'm_pBody' is non-null
)
6
←
Taking true branch
→
16
←
Taking true branch
→
113 m_pBody->release();
7
←
Calling 'VclReferenceBase::release'
→
11
←
Returning; memory was released
→
17
←
Use of memory after it is freed
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody)
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

/home/maarten/src/libreoffice/core/include/vcl/vclreferencebase.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
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_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27 mutable oslInterlockedCount mnRefCnt;
28
29 template<typename T> friend class VclPtr;
30
31public:
32 void acquire() const
33 {
34 osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35 }
36
37 void release() const
38 {
39 if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
8
←
Assuming the condition is true
→
9
←
Taking true branch
→
40 delete this;
10
←
Memory is released
→
41 }
42#ifdef DBG_UTIL
43#ifndef _WIN32
44 sal_Int32 getRefCount() const { return mnRefCnt; }
45#endif
46#endif
47
48
49private:
50 VclReferenceBase(const VclReferenceBase&) = delete;
51 VclReferenceBase& operator=(const VclReferenceBase&) = delete;
52
53 bool mbDisposed : 1;
54
55protected:
56 VclReferenceBase();
57protected:
58 virtual ~VclReferenceBase();
59
60protected:
61 virtual void dispose();
62
63public:
64 void disposeOnce();
65 bool isDisposed() const { return mbDisposed; }
66
67};
68#endif