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ROBLOX2016
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Library/boost/libs/serialization/test/test_multi_shared_lib.cpp
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19 дек 2024, 19:11
19 дек 2024, 19:11
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 // test_multi_shared_lib.cpp: test that implementation of extented_type_info // works when using multiple shared libraries // // This reproduces a crash that occurred when multiple shared libraries were // using Boost.Serialization built statically. That causes core singletons to be // instantiated in each shared library separately. Due to some destruction order // mixup in the context of shared libraries on linux it is possible, that // singletons accessed in destructors of other singletons are already destructed. // Accessing them will then lead to a crash or memory corruption. // For this we need 2 shared libraries, linked against static boost. They need to // instantiate extended_type_info_typeid with different types, either by serializing // 2 types (which will do that internally) or by accessing the singletons directly. // (C) Copyright 2018 Alexander Grund // Use, modification and distribution is subject to the Boost Software // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #include <boost/serialization/config.hpp> // Both shall instantiate different(!) singletons and return true BOOST_SYMBOL_IMPORT bool f(); BOOST_SYMBOL_IMPORT bool g(); int main(int argc, char**){ if(f() && g()) return 0; return 1; }