Function unlock

extern/boost/boost/thread/lock_types.hpp:439–453

#endif

    void unlock()
    {
      if (m == 0)
      {
        boost::throw_exception(
            boost::lock_error(static_cast<int>(system::errc::operation_not_permitted), "boost unique_lock has no mutex"));
      }
      if (!owns_lock())
      {
        boost::throw_exception(
            boost::lock_error(static_cast<int>(system::errc::operation_not_permitted), "boost unique_lock doesn't own the mutex"));
      }
      m->unlock();
      is_locked = false;
    }

#if defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
    typedef void (unique_lock::*bool_type)();