Regd issue : Memory leak in 'Parse' function of DOMParser

[Abhinav Kishore Srivastava]

Hi,

There is a memory leak in the parse function of XercesDOMParser. Please find 
below the details:

OS used: Solaris 10
Xerces version: 2.8.0
Software used: Rogue wave libraries for string functions.

Code Snippet which leaks:

RWCString xmlString;
XmlProcessData  m_xmlDocData;
ParserErrorHandler*      m_errorHandler;

                int errorCount = 0;

                m_domParser = new XercesDOMParser();
RWCString schemaLocationsString;
                                bool noNameSpace;
                                
m_xmlDocData.GetSchemaLocation(schemaLocationsString, noNameSpace)
                                
m_domParser->setExternalSchemaLocation(schemaLocationsString);
                                
m_domParser->setValidationSchemaFullChecking(false);

                                XercesDOMParser::ValSchemes valScheme;
                                if (m_xmlDocData.GetXsdValidationLevel() == 
XmlProcessData::VALIDATION_OFF)
                                                valScheme = 
XercesDOMParser::Val_Never;
                                else if (m_xmlDocData.GetXsdValidationLevel() 
== XmlProcessData::VALIDATION_ON)
                                                valScheme = 
XercesDOMParser::Val_Always;
                                else
                                                valScheme = 
XercesDOMParser::Val_Auto;

                                m_domParser->setValidationScheme(valScheme);
                                m_domParser->setDoNamespaces(true);    // 
optional
                                m_domParser->setDoSchema(true);
                                m_domParser->setErrorHandler(m_errorHandler);
                }
                RWCString theString = xmlbuffer;

                m_errorHandler->resetErrors();

                MemBufInputSource* membuf;

                                membuf = new MemBufInputSource(
                                                                (const 
XMLByte*)theString.data(), strlen(theString.data()), "APIXMLInterface",false);


                                const unsigned long startMillis = 
XMLPlatformUtils::getCurrentMillis();


                                m_domParser->parse(*membuf); //memory 
utilization increases here and later on when delete m_domParser is called, it 
is not released.


                                const unsigned long endMillis = 
XMLPlatformUtils::getCurrentMillis();
                                unsigned long duration = endMillis - 
startMillis;
                                m_doc = m_domParser->getDocument();
                                delete membuf;
                                membuf = 0;
                                delete m_domParser;
                                m_domParser = 0;

Can anyone suggest why is the memory leak happening and what can be done to 
prevent this.
Thanks and Regards,
Abhinav Kishore
GTCS- ASG
Desk:+91 20 22970170
Mob:0-9689942815
Team phone (UK): 01977590500


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