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- // Copyright (C) 2015 Vicente Botet
- //
- // Distributed under 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)
- #define BOOST_THREAD_VERSION 4
- #include <boost/thread.hpp>
- #include <boost/thread/tss.hpp>
- #include <boost/shared_ptr.hpp>
- #include <iostream>
- struct A
- {
- void DoWork()
- {
- std::cout << "A: doing work\n";
- if (!m_ptr.get())
- m_ptr.reset(new WorkSpace());
- // do not very much
- for (size_t i = 0; i < 10; ++i)
- m_ptr->a += 10;
- }
- private:
- struct WorkSpace
- {
- int a;
- WorkSpace() : a(0) {}
- };
- boost::thread_specific_ptr<WorkSpace> m_ptr;
- };
- struct B
- {
- void DoWork()
- {
- std::cout << "B: doing work\n";
- if (!m_ptr.get())
- m_ptr.reset(new A());
- m_ptr->DoWork();
- }
- private:
- boost::thread_specific_ptr<A> m_ptr;
- };
- struct C
- {
- void DoWork()
- {
- std::cout << "C: doing work\n";
- if (!m_ptr.get())
- m_ptr.reset(new B());
- m_ptr->DoWork();
- }
- private:
- boost::thread_specific_ptr<B> m_ptr;
- };
- int main(int ac, char** av)
- {
- std::cout << "test starting\n";
- boost::shared_ptr<C> p_C(new C);
- boost::thread cWorker(&C::DoWork, p_C);
- cWorker.join();
- std::cout << "test stopping\n";
- return 0;
- }
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