Do not delete SwIndexReg::pEmptyIndexArray while SwXTextCursor instances can still reference it.

Found during termination of sw/qa/unoapi soffice.bin run under Valgrind/memcheck.

4 files changed, 9 insertions, 13 deletions

diff --git a/sw/inc/index.hxx b/sw/inc/index.hxx
index 551e31df3af8..2a3a79231712 100644
--- a/sw/inc/index.hxx
+++ b/sw/inc/index.hxx
@@ -29,6 +29,8 @@
 #define _INDEX_HXX
 
 #include <limits.h>
+
+#include "rtl/instance.hxx"
 #include <tools/solar.h>
 #include <tools/rtti.hxx>               // for RTTI of SwIndexReg
 #include <tools/string.hxx>             // for xub_StrLen
@@ -117,12 +119,6 @@ class SwIndexReg
 
     const SwIndex *pFirst, *pLast, *pMiddle;
 
-    // A global array for holding indices that need to be "swapped" temporarily
-    // or do not know a valid array (SwPaM/SwPosition!).
-    friend void _InitCore();
-    friend void _FinitCore();
-    static SwIndexReg* pEmptyIndexArray;
-
 protected:
     virtual void Update( SwIndex const & rPos, const xub_StrLen nChangeLen,
                  const bool bNegative = false, const bool bDelete = false );
@@ -142,6 +138,10 @@ public:
     void MoveTo( SwIndexReg& rArr );
 };
 
+// A global array for holding indices that need to be "swapped" temporarily or
+// do not know a valid array (SwPaM/SwPosition!):
+struct EmptyIndexArray: rtl::Static< SwIndexReg, EmptyIndexArray > {};
+
 #if !defined(OSL_DEBUG_LEVEL) || OSL_DEBUG_LEVEL < 2
 
 inline xub_StrLen SwIndex::operator++()
diff --git a/sw/source/core/bastyp/index.cxx b/sw/source/core/bastyp/index.cxx
index 84db722b15c2..bff5760ca3f7 100644
--- a/sw/source/core/bastyp/index.cxx
+++ b/sw/source/core/bastyp/index.cxx
@@ -48,7 +48,7 @@ SwIndex::SwIndex(SwIndexReg *const pArr, xub_StrLen const nIdx)
 {
     if( !pArray )
     {
-        pArray = SwIndexReg::pEmptyIndexArray;
+        pArray = &EmptyIndexArray::get();
         nIndex = 0;     // steht immer auf 0 !!!
     }
 
@@ -225,7 +225,7 @@ SwIndex& SwIndex::Assign( SwIndexReg* pArr, xub_StrLen nIdx )
 {
     if( !pArr )
     {
-        pArr = SwIndexReg::pEmptyIndexArray;
+        pArr = &EmptyIndexArray::get();
         nIdx = 0;       // steht immer auf 0 !!!
     }
 
diff --git a/sw/source/core/bastyp/init.cxx b/sw/source/core/bastyp/init.cxx
index 1e3e5dc7d2e1..72e6ec4f92fd 100644
--- a/sw/source/core/bastyp/init.cxx
+++ b/sw/source/core/bastyp/init.cxx
@@ -430,7 +430,6 @@ sal_uInt16* SwAttrPool::pVersionMap4 = 0;
 // #i18732#
 sal_uInt16* SwAttrPool::pVersionMap5 = 0;
 sal_uInt16* SwAttrPool::pVersionMap6 = 0;
-SwIndexReg* SwIndexReg::pEmptyIndexArray = 0;
 
 const sal_Char* pMarkToTable        = "table";
 const sal_Char* pMarkToFrame        = "frame";
@@ -725,8 +724,6 @@ void _InitCore()
     SwSelPaintRects::pMapMode = new MapMode;
     SwFntObj::pPixMap = new MapMode;
 
-    SwIndexReg::pEmptyIndexArray = new SwIndexReg;
-
     pGlobalOLEExcludeList = new SvPtrarr;
 
     const SvxSwAutoFmtFlags& rAFlags = SvxAutoCorrCfg::Get().GetAutoCorrect()->GetSwFlags();
@@ -813,7 +810,6 @@ void _FinitCore()
 
     ::ClearFEShellTabCols();
 
-    delete SwIndexReg::pEmptyIndexArray;
     delete[] SwAttrPool::pVersionMap1;
     delete[] SwAttrPool::pVersionMap2;
     delete[] SwAttrPool::pVersionMap3;
diff --git a/sw/source/core/crsr/crsrsh.cxx b/sw/source/core/crsr/crsrsh.cxx
index 6278e620a865..8a8cd4ef75c8 100644
--- a/sw/source/core/crsr/crsrsh.cxx
+++ b/sw/source/core/crsr/crsrsh.cxx
@@ -3164,7 +3164,7 @@ const SwStartNode* lcl_NodeContext( const SwNode& rNode )
 bool lcl_PosOk(const SwPosition & aPos)
 {
     return NULL != aPos.nNode.GetNode().GetCntntNode() &&
-           SwIndexReg::pEmptyIndexArray != aPos.nContent.GetIdxReg();
+           &EmptyIndexArray::get() != aPos.nContent.GetIdxReg();
 }
 
 /**