1 #include <boost/config.hpp>
5 // Copyright (c) 2008 Peter Dimov
7 // Distributed under the Boost Software License, Version 1.0.
8 // See accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt
12 #include <boost/detail/lightweight_test.hpp>
13 #include <boost/shared_ptr.hpp>
21 #define BOOST_TEST_SP_EQ( p, q ) BOOST_TEST( p == q && !( p < q ) && !( q < p ) )
25 boost::shared_ptr<X> px( new X );
28 boost::shared_ptr<X> p2 = boost::atomic_load( &px );
29 BOOST_TEST_SP_EQ( p2, px );
31 boost::shared_ptr<X> px2( new X );
32 boost::atomic_store( &px, px2 );
33 BOOST_TEST_SP_EQ( px, px2 );
35 p2 = boost::atomic_load( &px );
36 BOOST_TEST_SP_EQ( p2, px );
37 BOOST_TEST_SP_EQ( p2, px2 );
39 boost::shared_ptr<X> px3( new X );
40 boost::shared_ptr<X> p3 = boost::atomic_exchange( &px, px3 );
41 BOOST_TEST_SP_EQ( p3, px2 );
42 BOOST_TEST_SP_EQ( px, px3 );
44 boost::shared_ptr<X> px4( new X );
45 boost::shared_ptr<X> cmp;
47 bool r = boost::atomic_compare_exchange( &px, &cmp, px4 );
49 BOOST_TEST_SP_EQ( px, px3 );
50 BOOST_TEST_SP_EQ( cmp, px3 );
52 r = boost::atomic_compare_exchange( &px, &cmp, px4 );
54 BOOST_TEST_SP_EQ( px, px4 );
62 boost::shared_ptr<X> p2 = boost::atomic_load_explicit( &px, boost::memory_order_acquire );
63 BOOST_TEST_SP_EQ( p2, px );
65 boost::shared_ptr<X> px2( new X );
66 boost::atomic_store_explicit( &px, px2, boost::memory_order_release );
67 BOOST_TEST_SP_EQ( px, px2 );
69 boost::shared_ptr<X> p3 = boost::atomic_exchange_explicit( &px, boost::shared_ptr<X>(), boost::memory_order_acq_rel );
70 BOOST_TEST_SP_EQ( p3, px2 );
71 BOOST_TEST_SP_EQ( px, p2 );
73 boost::shared_ptr<X> px4( new X );
74 boost::shared_ptr<X> cmp( px2 );
76 bool r = boost::atomic_compare_exchange_explicit( &px, &cmp, px4, boost::memory_order_acquire, boost::memory_order_relaxed );
78 BOOST_TEST_SP_EQ( px, p2 );
79 BOOST_TEST_SP_EQ( cmp, p2 );
81 r = boost::atomic_compare_exchange_explicit( &px, &cmp, px4, boost::memory_order_release, boost::memory_order_acquire );
83 BOOST_TEST_SP_EQ( px, px4 );
86 return boost::report_errors();