C++ (Cpp) null_mutexの例

コード例 #1

int main()
{
  m.lock();
  boost::thread t(f);
  m.unlock();
  t.join();

  return boost::report_errors();
}

コード例 #2

void f1()
{
  time_point t0 = Clock::now();
  BOOST_TEST(m.try_lock_until(Clock::now() + ms(300) ) == true);
  time_point t1 = Clock::now();
  m.unlock();
  ns d = t1 - t0 ;
  BOOST_TEST(d < ns(5000000)); // within 5ms
}

コード例 #3

ファイル: try_lock_for_pass.cpp プロジェクト: AlexMioMio/boost

void f1()
{
  time_point t0 = Clock::now();
  // This test is spurious as it depends on the time the thread system switches the threads
  BOOST_TEST(m.try_lock_for(ms(100)) == true);
  time_point t1 = Clock::now();
  BOOST_TEST(m.try_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(5000000)); // within 5ms
}

コード例 #4

ファイル: try_lock_pass.cpp プロジェクト: AlexMioMio/boost

void f()
{
#if defined BOOST_THREAD_USES_CHRONO
  time_point t0 = Clock::now();
  BOOST_TEST(m.try_lock());
  time_point t1 = Clock::now();
  BOOST_TEST(m.try_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(50000000)); // within 50ms
#else
  BOOST_TEST(m.try_lock());
  BOOST_TEST(m.try_lock());
  m.unlock();
  m.unlock();
#endif
}