| 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/spinlock.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 int count = 0; |
| 11 | static boost::detail::spinlock sp = BOOST_DETAIL_SPINLOCK_INIT; |
| 12 | |
| 13 | void f( int n ) |
| 14 | { |
| 15 | for( int i = 0; i < n; ++i ) |
| 16 | { |
| 17 | boost::detail::spinlock::scoped_lock lock( sp ); |
| 18 | ++count; |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | int main() |
| 23 | { |
| 24 | int const N = 100000; // iterations |
| 25 | int const M = 8; // threads |
| 26 | |
| 27 | boost::detail::lw_thread_t th[ M ] = {}; |
| 28 | |
| 29 | for( int i = 0; i < M; ++i ) |
| 30 | { |
| 31 | boost::detail::lw_thread_create( th&: th[ i ], f: boost::bind( f, a1: N ) ); |
| 32 | } |
| 33 | |
| 34 | for( int i = 0; i < M; ++i ) |
| 35 | { |
| 36 | boost::detail::lw_thread_join( th: th[ i ] ); |
| 37 | } |
| 38 | |
| 39 | BOOST_TEST_EQ( count, N * M ); |
| 40 | |
| 41 | return boost::report_errors(); |
| 42 | } |
| 43 |