[XERCESC-2107] TranscodeFromStr::TranscodeFromStr definate leak alert

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 3.1.1
• Environment: RHEL 3.10
• Assignee: Unassigned
• Reporter: vikas
• Created: 24/Jul/17 07:56
• Updated: 08/Aug/17 06:41
• Resolved: 27/Jul/17 14:56

Description

Memory analyzer tool (valgrind) showing memory leak at TranscodeFromStr.
No exception raised when constructing TranscodeFromStr object.
Below is snip from valgrind

==8884== 20,770 bytes in 1 blocks are possibly lost in loss record 2,123 of 2,137
==8884== at 0x4C2A243: operator new(unsigned long) (vg_replace_malloc.c:334)
==8884== by 0xA374512: xercesc_3_1::MemoryManagerImpl::allocate(unsigned long) (in /usr/openv/lib/libvxxml4c.so.6)
==8884== by 0xA2E4DFD: xercesc_3_1::TranscodeFromStr::transcode(unsigned char const*, unsigned long, xercesc_3_1::XMLTranscoder*) (in /usr/openv/lib/libvxxml4c.so.6)
==8884== by 0xA2E50BC: xercesc_3_1::TranscodeFromStr::TranscodeFromStr(unsigned char const*, unsigned long, char const*, xercesc_3_1::MemoryManager*) (in /usr/openv/lib/libvxxml4c.so.6)

I called XMLPlatformUtils::Initialize() at the time of loading and XMLPlatformUtils::Terminate() when exiting.

XMLPlatformUtils::Initialize();

  {
	  std::string sample = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?> <testxml> <IDList> <ID dentifier=\"demo1\" Name=\"demo1\"> </ID> <ID dentifier=\"demo2\" Name=\"demo2\"> </ID> </IDList> </testxml>";
	  XMLCh * xmlStr = xercesc::XMLString::transcode (sample.c_str())

	  TranscodeToStr transcodeTo(xmlStr, "UTF-8");
	  const XMLByte* bytes = transcodeTo.adopt();
	  xercesc::XMLString::release(&xmlStr);
	  TranscodeFromStr transcodeFrom(bytes, transcodeTo.length(),"UTF-8");

	  XMLCh * xmlch_ptr = transcodeFrom.adopt();
	  char * c_ptr = xercesc::XMLString::transcode(xmlch_ptr);
	  std::string encodedstr(c_ptr);
	  xercesc::XMLString::release(&c_ptr);
  }

  XMLPlatformUtils::Terminate();