Method wait

extern/libcds/test/include/cds_test/thread.h:80–92

            }

            bool wait()
            {
                std::unique_lock< std::mutex > lock( m_mtx );
                if ( --m_count == 0 ) {
                    m_cv.notify_all();
                    return true;
                }

                while ( m_count != 0 )
                    m_cv.wait( lock );

                return false;
            }

        private:
            size_t      m_count;