Function BOOST_THREAD_ACQUIRE

extern/boost/boost/thread/lock_guard.hpp:35–39

    BOOST_THREAD_NO_COPYABLE( lock_guard )

    explicit lock_guard(Mutex& m_) BOOST_THREAD_ACQUIRE(m_) :
      m(m_)
    {
      m.lock();
    }

    lock_guard(Mutex& m_, adopt_lock_t) BOOST_THREAD_REQUIRES(m_) :
      m(m_)