id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1328	boost::spirit concurrency gap	vlad_news@…	Joel de Guzman	"The following snipped code from the ""boost::spirit"" library contains the problem with concurrent access to a static object. Creation of a object of ""thread_specific_ptr"" type should be protected while concurrent access is performed.

//boost\spirit\core\non_terminal\impl\grammar.ipp

...

# ifdef BOOST_SPIRIT_THREADSAFE
        //should be protected with a ""call once"" idiom

        static boost::thread_specific_ptr<ptr_t> tld_helper;

        if (!tld_helper.get())

            tld_helper.reset(new ptr_t);

        ptr_t &helper = *tld_helper;

# else

        static ptr_t helper;

# endif

..."	Bugs	closed	To Be Determined	spirit	Boost 1.34.1	Problem	fixed