int main()
{
m.lock();
boost::thread t(f);
m.unlock();
t.join();
return boost::report_errors();
}
void f()
{
#if defined BOOST_THREAD_USES_CHRONO
time_point t0 = Clock::now();
m.lock();
time_point t1 = Clock::now();
m.lock();
m.unlock();
m.unlock();
ns d = t1 - t0 ;
// This test is spurious as it depends on the time the thread system switches the threads
BOOST_TEST(d < ns(2500000)); // within 2.5ms
#else
//time_point t0 = Clock::now();
m.lock();
//time_point t1 = Clock::now();
m.lock();
m.unlock();
m.unlock();
//ns d = t1 - t0 ;
// This test is spurious as it depends on the time the thread system switches the threads
//BOOST_TEST(d < ns(2500000)); // within 2.5ms
#endif
}