1 // Copyright 2018, 2020 Peter Dimov 2 // Distributed under the Boost Software License, Version 1.0. 3 // https://www.boost.org/LICENSE_1_0.txt) 4 5 #include <boost/smart_ptr/detail/atomic_count.hpp> 6 #include <boost/smart_ptr/detail/lightweight_thread.hpp> 7 #include <boost/bind/bind.hpp> 8 #include <boost/core/lightweight_test.hpp> 9 10 static boost::detail::atomic_count count( 0 ); 11 f(int n)12void f( int n ) 13 { 14 for( int i = 0; i < n; ++i ) 15 { 16 ++count; 17 } 18 } 19 main()20int main() 21 { 22 int const N = 100000; // iterations 23 int const M = 8; // threads 24 25 boost::detail::lw_thread_t th[ M ] = {}; 26 27 for( int i = 0; i < M; ++i ) 28 { 29 boost::detail::lw_thread_create( th[ i ], boost::bind( f, N ) ); 30 } 31 32 for( int i = 0; i < M; ++i ) 33 { 34 boost::detail::lw_thread_join( th[ i ] ); 35 } 36 37 BOOST_TEST_EQ( count, N * M ); 38 39 return boost::report_errors(); 40 } 41