1 files changed, 8 insertions, 0 deletions
diff --git a/package/source/xstor/xstorage.hxx b/package/source/xstor/xstorage.hxx
index 039dd22f150d..ccc0efe058d3 100644
--- a/package/source/xstor/xstorage.hxx
+++ b/package/source/xstor/xstorage.hxx
@@ -124,11 +124,19 @@ struct OStorage_Impl
     sal_Int32                   m_nStorageMode; // open mode ( read/write/trunc/nocreate )
     sal_Bool                    m_bIsModified;  // only modified elements will be sent to the original content
     sal_Bool                    m_bBroadcastModified;  // will be set if notification is required
+
     sal_Bool                    m_bCommited;    // sending the streams is coordinated by the root storage of the package
 
     sal_Bool                    m_bIsRoot;      // marks this storage as root storages that manages all commits and reverts
     sal_Bool                    m_bListCreated;
 
+    /// Count of registered modification listeners
+    oslInterlockedCount         m_nModifiedListenerCount;
+    bool                        HasModifiedListener()
+    {
+        return m_nModifiedListenerCount > 0 && m_pAntiImpl != NULL;
+    }
+
     SotElementList_Impl                         m_aChildrenList;
     SotElementList_Impl                         m_aDeletedList;