ceph/src/boost/libs/serialization/test/test_multi_shared_lib.cpp

   1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
   2 // test_multi_shared_lib.cpp: test that implementation of extented_type_info
   3 //              works when using multiple shared libraries
   4 //
   5 // This reproduces a crash that occurred when multiple shared libraries were
   6 // using Boost.Serialization built statically. That causes core singletons to be
   7 // instantiated in each shared library separately. Due to some destruction order
   8 // mixup in the context of shared libraries on linux it is possible, that
   9 // singletons accessed in destructors of other singletons are already destructed.
  10 // Accessing them will then lead to a crash or memory corruption.
  11 // For this we need 2 shared libraries, linked against static boost. They need to
  12 // instantiate extended_type_info_typeid with different types, either by serializing
  13 // 2 types (which will do that internally) or by accessing the singletons directly.
  14
  15 // (C) Copyright 2018 Alexander Grund
  16 // Use, modification and distribution is subject to the Boost Software
  17 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  18 // http://www.boost.org/LICENSE_1_0.txt)
  19
  20 #include <boost/serialization/config.hpp>
  21
  22 // Both shall instantiate different(!) singletons and return true
  23 BOOST_SYMBOL_IMPORT bool f();
  24 BOOST_SYMBOL_IMPORT bool g();
  25
  26 int main(int argc, char**){
  27   if(f() && g())
  28         return 0;
  29   return 1;
  30 }