https://devzone.nordicsemi.com/f/nordic-q-a/57111/thread-safety-in-ringbuf-libraryI&#39;m reviewing the ringbuf library for use with FreeRTOS across two threads and I can&#39;t see how the atomic operations implemented in the library make it thread safe. The atomic operations seem to prevent multiple writers or multiple readers from accessingen-USTelligent Community 13Wed, 29 Jan 2020 12:12:01 GMThttps://devzone.nordicsemi.com/thread/231629?ContentTypeID=1Wed, 29 Jan 2020 12:12:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4fc49a67-37d4-47fd-b7ca-1b891158ebf7Krzysztof Chruscinski<p>Hi Darren,</p> <p>note that to read the buffer you only read wr_idx and modify (tmp_)rd_idx and wr_idx is updated when data is already in the buffer (in nrf_ringbuf_cpy_put or nrf_ringbuf_put). Can you describe exact case when high priority task could read invalid data?</p> <p>regards,</p> <p>Krzysztof</p><div style="clear:both;"></div>