ceph/src/boost/libs/thread/test/test_11053.cpp

   1 // Copyright (C) 2015 Vicente Botet
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #define BOOST_THREAD_VERSION 4
   7 #include <boost/thread.hpp>
   8 #include <boost/thread/tss.hpp>
   9 #include <boost/shared_ptr.hpp>
  10 #include <iostream>
  11
  12 struct A
  13 {
  14     void DoWork()
  15     {
  16         std::cout << "A: doing work\n";
  17         if (!m_ptr.get())
  18             m_ptr.reset(new WorkSpace());
  19         // do not very much
  20         for (size_t i = 0; i < 10; ++i)
  21             m_ptr->a += 10;
  22     }
  23
  24 private:
  25     struct WorkSpace
  26     {
  27         int a;
  28         WorkSpace() : a(0) {}
  29     };
  30     boost::thread_specific_ptr<WorkSpace> m_ptr;
  31 };
  32
  33 struct B
  34 {
  35     void DoWork()
  36     {
  37         std::cout << "B: doing work\n";
  38         if (!m_ptr.get())
  39             m_ptr.reset(new A());
  40         m_ptr->DoWork();
  41     }
  42 private:
  43     boost::thread_specific_ptr<A> m_ptr;
  44 };
  45
  46 struct C
  47 {
  48     void DoWork()
  49     {
  50         std::cout << "C: doing work\n";
  51         if (!m_ptr.get())
  52             m_ptr.reset(new B());
  53         m_ptr->DoWork();
  54     }
  55 private:
  56     boost::thread_specific_ptr<B> m_ptr;
  57 };
  58
  59 int main(int ac, char** av)
  60 {
  61     std::cout << "test starting\n";
  62     boost::shared_ptr<C> p_C(new C);
  63     boost::thread cWorker(&C::DoWork, p_C);
  64     cWorker.join();
  65     std::cout << "test stopping\n";
  66     return 0;
  67 }
  68
  69
  70