xercesc_2_7::SAXParseException gives a core from destructor ...

[Anil Tambe]

hi all,
        Getting Segmentation fault from

*              xercesc_2_7::SAXParseException::~SAXParseException ()

      i am using the following code snippnet ...
<<
XERCES_CPP_NAMESPACE::SAXParseException temp(NULL,NULL,NULL,0,0);*
/>>

Calling the below constructor , i am no specifying any memory manager
, the intension here is to use the default memory manager ...

Request for your view on this ....

SAXParseException::SAXParseException ( const
XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
*message*,

const XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
*publicId*,

const XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
*systemId*,

const XMLFileLoc<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#dd2d542a6583db767febf57446daa50d>
  *lineNumber*,

const XMLFileLoc<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#dd2d542a6583db767febf57446daa50d>
  *columnNumber*,

MemoryManager<http://xerces.apache.org/xerces-c/apiDocs-3/classMemoryManager.html>*const
*manager* = XMLPlatformUtils::fgMemoryManager<http://xerces.apache.org/xerces-c/apiDocs-3/classXMLPlatformUtils.html#97eff0d9fff3567bea3acd3ca4d95252>

)



Here is the constructor implementation ...


SAXParseException::SAXParseException(const  XMLCh* const    message
                                    , const XMLCh* const    publicId
                                    , const XMLCh* const    systemId
                                    , const XMLSSize_t      lineNumber
                                    , const XMLSSize_t      columnNumber
                                    , MemoryManager* const  manager) :
    SAXException(message, manager)
    , fColumnNumber(columnNumber)
    , fLineNumber(lineNumber)
    , fPublicId(XMLString::replicate(publicId, manager))
    , fSystemId(XMLString::replicate(systemId, manager))
{
}




Below is the Destructor ..

SAXParseException::~SAXParseException()
{

    fMemoryManager->deallocate(fPublicId);//XMLString::release(&fPublicId);
    fMemoryManager->deallocate(fSystemId);//XMLString::release(&fSystemId);

}

Thanks
Anil

[Anil Tambe]

hi,
      The Stack trace shows Segmenation fault at

Program received signal SIGSEGV, Segmentation fault.
0x00000000 in ?? ()
(gdb) where
#0  0x00000000 in ?? ()
#1  0xb7e08837 in xercesc_2_7::SAXParseException::~SAXParseException () at
GrammarResolver.hpp:246
#2  0x0804b2da in main ()
(gdb)

Which is the below inline function in    GrammarResolver.hpp:246

inline MemoryManager* GrammarResolver::getGrammarPoolMemoryManager() const
{
    return fGrammarPool->getMemoryManager();
}

Any idea what could cause this ???

Thanks
Anil


On Fri, Oct 10, 2008 at 3:40 PM, Anil Tambe <tambe.anil@...> wrote:

> hi all,
>         Getting Segmentation fault from
>
> *              xercesc_2_7::SAXParseException::~SAXParseException ()
>
>       i am using the following code snippnet ...
> <<
> XERCES_CPP_NAMESPACE::SAXParseException temp(NULL,NULL,NULL,0,0);*
>
> />>
>
> Calling the below constructor , i am no specifying any memory manager , the intension here is to use the default memory manager ...
>
> Request for your view on this ....
>
> SAXParseException::SAXParseException ( const XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
> *message*,
>
> const XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
> *publicId*,
>
> const XMLCh<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#fae8f92d83170d97f757f704eca7f52a>*const
> *systemId*,
>
> const XMLFileLoc<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#dd2d542a6583db767febf57446daa50d>
>   *lineNumber*,
>
> const XMLFileLoc<http://xerces.apache.org/xerces-c/apiDocs-3/Xerces__autoconf__config_8msvc_8hpp.html#dd2d542a6583db767febf57446daa50d>
>   *columnNumber*,
>
> MemoryManager<http://xerces.apache.org/xerces-c/apiDocs-3/classMemoryManager.html>*const
> *manager* = XMLPlatformUtils::fgMemoryManager<http://xerces.apache.org/xerces-c/apiDocs-3/classXMLPlatformUtils.html#97eff0d9fff3567bea3acd3ca4d95252>
>
> )
>
>
>
> Here is the constructor implementation ...
>
>
> SAXParseException::SAXParseException(const  XMLCh* const    message
>                                     , const XMLCh* const    publicId
>                                     , const XMLCh* const    systemId
>                                     , const XMLSSize_t      lineNumber
>                                     , const XMLSSize_t      columnNumber
>                                     , MemoryManager* const  manager) :
>     SAXException(message, manager)
>     , fColumnNumber(columnNumber)
>     , fLineNumber(lineNumber)
>     , fPublicId(XMLString::replicate(publicId, manager))
>     , fSystemId(XMLString::replicate(systemId, manager))
> {
> }
>
>
>
>
> Below is the Destructor ..
>
> SAXParseException::~SAXParseException()
> {
>
>     fMemoryManager->deallocate(fPublicId);//XMLString::release(&fPublicId);
>     fMemoryManager->deallocate(fSystemId);//XMLString::release(&fSystemId);
>
> }
>
> Thanks
> Anil
>
>
>

--
Take Care
Anil
always for_u

[Boris Kolpackov-2]

Hi Anil,

Anil Tambe <tambe.anil@...> writes:

> Any idea what could cause this ???

The most likely cause is the destruction of Xerces-C++ exception after
PlatformUtils::Terminate() has been called.

Boris

--
Boris Kolpackov, Code Synthesis Tools   http://codesynthesis.com/~boris/blog
Open source XML data binding for C++:   http://codesynthesis.com/products/xsd
Mobile/embedded validating XML parsing: http://codesynthesis.com/products/xsde

[Anil Tambe]

Thanks Boris ..  Adding checks for NULL in destructors ( SAXParseException
and SAXException ) resolves the issue.

On Mon, Oct 13, 2008 at 12:21 PM, Boris Kolpackov
<boris@...>wrote:

> Hi Anil,
>
> Anil Tambe <tambe.anil@...> writes:
>
> > Any idea what could cause this ???
>
> The most likely cause is the destruction of Xerces-C++ exception after
> PlatformUtils::Terminate() has been called.
>
> Boris
>
> --
> Boris Kolpackov, Code Synthesis Tools
> http://codesynthesis.com/~boris/blog<http://codesynthesis.com/%7Eboris/blog>
> Open source XML data binding for C++:
> http://codesynthesis.com/products/xsd
> Mobile/embedded <http://codesynthesis.com/products/xsdMobile/embedded>validating XML parsing:
> http://codesynthesis.com/products/xsde
>

--
Take Care
Anil
always for_u