[Libreoffice-commits] core.git: dbaccess/source

Michael Stahl mstahl at redhat.com
Wed Jan 31 13:41:05 UTC 2018


 dbaccess/source/core/dataaccess/datasource.cxx |    5 +++--
 dbaccess/source/core/dataaccess/datasource.hxx |    3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

New commits:
commit 96ae2a3300811897c24cccb20f8c2faf382483df
Author: Michael Stahl <mstahl at redhat.com>
Date:   Wed Jan 31 14:34:31 2018 +0100

    tdf#114596 dbaccess: fix mysterious dataloss bug
    
    OBookmarkContainer actually re-uses the reference count of
    ODatabaseSource, so converting ODatabaseSource::m_aBookmark to Reference
    created a cycle, which somehow causes the dataloss, because evidently
    something as important as storing the data must be done in the
    destructor.
    
    (regression from 2660d24a07866e083c5135ea263030f3e3a2e729)
    
    Change-Id: I4cad01dc9cdaf405c1eb31d6c0e161eb6712b78f

diff --git a/dbaccess/source/core/dataaccess/datasource.cxx b/dbaccess/source/core/dataaccess/datasource.cxx
index cab756146286..9bd5d7e7afc7 100644
--- a/dbaccess/source/core/dataaccess/datasource.cxx
+++ b/dbaccess/source/core/dataaccess/datasource.cxx
@@ -475,7 +475,7 @@ ODatabaseSource::ODatabaseSource(const ::rtl::Reference<ODatabaseModelImpl>& _pI
             :ModelDependentComponent( _pImpl )
             ,ODatabaseSource_Base( getMutex() )
             ,OPropertySetHelper( ODatabaseSource_Base::rBHelper )
-            ,m_xBookmarks( new OBookmarkContainer( *this, getMutex() ) )
+            , m_Bookmarks(*this, getMutex())
             ,m_aFlushListeners( getMutex() )
 {
     // some kind of default
@@ -1179,7 +1179,8 @@ Reference< XConnection > ODatabaseSource::getConnection(const OUString& user, co
 Reference< XNameAccess > SAL_CALL ODatabaseSource::getBookmarks(  )
 {
     ModelMethodGuard aGuard( *this );
-    return static_cast< XNameContainer* >(m_xBookmarks.get());
+    // tdf#114596 this may look nutty but see OBookmarkContainer::aquire()
+    return static_cast<XNameContainer*>(&m_Bookmarks);
 }
 
 Reference< XNameAccess > SAL_CALL ODatabaseSource::getQueryDefinitions( )
diff --git a/dbaccess/source/core/dataaccess/datasource.hxx b/dbaccess/source/core/dataaccess/datasource.hxx
index 7d6401922271..14328e19c34f 100644
--- a/dbaccess/source/core/dataaccess/datasource.hxx
+++ b/dbaccess/source/core/dataaccess/datasource.hxx
@@ -82,7 +82,8 @@ class ODatabaseSource   :public ModelDependentComponent // must be first
 
 private:
     using ODatabaseSource_Base::rBHelper;
-    rtl::Reference<OBookmarkContainer> m_xBookmarks;
+    // note: this thing uses the ref-count of "this", see OBookmarkContainer::acquire!
+    OBookmarkContainer m_Bookmarks;
     ::comphelper::OInterfaceContainerHelper2       m_aFlushListeners;
 
 private:


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