diff --git a/boost/serialization/singleton.hpp b/boost/serialization/singleton.hpp index b50afed..e891d55 100644 --- a/boost/serialization/singleton.hpp +++ b/boost/serialization/singleton.hpp @@ -91,7 +91,7 @@ class BOOST_SYMBOL_VISIBLE singleton_module : public boost::noncopyable { private: - BOOST_SERIALIZATION_DECL BOOST_DLLEXPORT static bool & get_lock() BOOST_USED; + BOOST_DLLEXPORT static bool & get_lock() BOOST_USED; public: BOOST_DLLEXPORT static void lock(){ get_lock() = true; @@ -115,7 +115,7 @@ private: // use a wrapper so that types T with protected constructors // can be used class singleton_wrapper : public T {}; - static singleton_wrapper t; + static singleton_wrapper* t = new singleton_wrapper; // refer to instance, causing it to be instantiated (and // initialized at startup on working compilers) BOOST_ASSERT(! is_destroyed()); @@ -125,7 +125,9 @@ private: // our usage/implementation of "locking" and introduce uncertainty into // the sequence of object initializaition. use(& m_instance); - return static_cast(t); + if (!t) + t = new singleton_wrapper; + return static_cast(*t); } static bool & get_is_destroyed(){ static bool is_destroyed; @@ -147,6 +149,9 @@ public: get_is_destroyed() = false; } BOOST_DLLEXPORT ~singleton() { + if (!get_is_destroyed()) { + delete &(get_instance()); + } get_is_destroyed() = true; } };