libxml2_globals::~libxml2_globals()
{
// Restore the old libxml2 callback functions.
xmlRegisterNodeDefault(old_register_node_fn_);
xmlDeregisterNodeDefault(old_deregister_node_fn_);
xmlThrDefRegisterNodeDefault(old_thr_def_register_node_fn_);
xmlThrDefDeregisterNodeDefault(old_thr_def_deregister_node_fn_);
//
// According to the libxml2 document on xmlCleanupParser():
//
// This function... does not clean up parser state, it cleans up memory allocated by the
// library itself. It is a cleanup function for the XML library. It tries to reclaim all
// related global memory allocated for the library processing. It doesn't deallocate any
// document related memory. One should call xmlCleanupParser() only when the process has
// finished using the library and all XML/HTML documents built with it.
// ...
// WARNING: if your application is multi-threaded or has plugin support, calling this may
// crash the application if another thread or a plugin is still using libxml2... In case of
// doubt abstain from calling this function or do it just before calling exit() to avoid
// leak reports from Valgrind!
//
if (cleanup_parser_)
{
xmlCleanupParser();
}
}
//#if !EPUB_COMPILER(MSVC)
//__attribute__((destructor))
//#endif
void __resetLibXMLOverrides(void)
{
xmlRegisterNodeDefault(defNodeRegister);
xmlThrDefRegisterNodeDefault(defThrNodeRegister);
xmlDeregisterNodeDefault(defNodeDeregister);
xmlThrDefDeregisterNodeDefault(defThrNodeDeregister);
xmlSubstituteEntitiesDefault(0);
xmlLoadExtDtdDefaultValue = 0;
}
//------------------------------------------------------------------------------
LibXmlSentry::LibXmlSentry()
{
if (use_count == 0)
{
xmlInitParser();
xmlRegisterNodeDefault(wrap_node);
xmlDeregisterNodeDefault(free_wrapper);
xmlThrDefRegisterNodeDefault(wrap_node);
xmlThrDefDeregisterNodeDefault(free_wrapper);
}
use_count++;
}
//INITIALIZER(__setupLibXML)
void __setupLibXML(void)
{
xmlInitGlobals();
defNodeRegister = xmlRegisterNodeDefault(&__registerNode);
defThrNodeDeregister = xmlThrDefRegisterNodeDefault(&__registerNodeThr);
defNodeDeregister = xmlDeregisterNodeDefault(&__deregisterNode);
defThrNodeDeregister = xmlThrDefDeregisterNodeDefault(&__deregisterNodeThr);
xmlSubstituteEntitiesDefault(1);
xmlLoadExtDtdDefaultValue = 1;
//#if EPUB_COMPILER(MSVC)
// atexit(__resetLibXMLOverrides);
//#endif
}
libxml2_globals::libxml2_globals(): old_register_node_fn_(0)
, old_deregister_node_fn_(0)
, old_thr_def_register_node_fn_(0)
, old_thr_def_deregister_node_fn_(0)
, cleanup_parser_(false)
{
// Initialize libxml2 resources.
LIBXML_TEST_VERSION;
xmlInitParser();
// Register libxml2 callback functions, and save the old ones.
old_register_node_fn_ = xmlRegisterNodeDefault(&on_node_construct);
old_deregister_node_fn_ = xmlDeregisterNodeDefault(&on_node_destruct);
old_thr_def_register_node_fn_ = xmlThrDefRegisterNodeDefault(&on_node_construct);
old_thr_def_deregister_node_fn_ = xmlThrDefDeregisterNodeDefault(&on_node_destruct);
// Libxml2 global initialization.
xmlSubstituteEntitiesDefault(1);
xmlLoadExtDtdDefaultValue = 1;
}
