spinlock_try_test.cpp 1.1 KB

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  1. //
  2. // spinlock_try_test.cpp
  3. //
  4. // Copyright 2008 Peter Dimov
  5. //
  6. // Distributed under the Boost Software License, Version 1.0.
  7. // See accompanying file LICENSE_1_0.txt or copy at
  8. // http://www.boost.org/LICENSE_1_0.txt)
  9. //
  10. #include <boost/smart_ptr/detail/spinlock.hpp>
  11. #include <boost/detail/lightweight_test.hpp>
  12. // Sanity check only
  13. static boost::detail::spinlock sp = BOOST_DETAIL_SPINLOCK_INIT;
  14. static boost::detail::spinlock sp2 = BOOST_DETAIL_SPINLOCK_INIT;
  15. int main()
  16. {
  17. BOOST_TEST( sp.try_lock() );
  18. BOOST_TEST( !sp.try_lock() );
  19. BOOST_TEST( sp2.try_lock() );
  20. BOOST_TEST( !sp.try_lock() );
  21. BOOST_TEST( !sp2.try_lock() );
  22. sp.unlock();
  23. sp2.unlock();
  24. sp.lock();
  25. BOOST_TEST( !sp.try_lock() );
  26. sp2.lock();
  27. BOOST_TEST( !sp.try_lock() );
  28. BOOST_TEST( !sp2.try_lock() );
  29. sp.unlock();
  30. sp2.unlock();
  31. {
  32. boost::detail::spinlock::scoped_lock lock( sp );
  33. BOOST_TEST( !sp.try_lock() );
  34. boost::detail::spinlock::scoped_lock lock2( sp2 );
  35. BOOST_TEST( !sp.try_lock() );
  36. BOOST_TEST( !sp2.try_lock() );
  37. }
  38. return boost::report_errors();
  39. }