Publish timeout handler of one model called during publish timeout handler of another model

[Mathias]

Hi,

I just have a small question: say I have two models, both with publish timeout intervals configured. After some time, one model's publish timeout handler is called. Could it be that the model's publish timeout handler is called during the handling of the previous model's timeout handler? Or will this be handled one by one, the next one waiting until the previous one is fully done? I'm asking this because I have such two models in which both publish timeout handlers access a single linked list and I'm wondering if I'm required to add some kind of 'critical section' logic to cope with access from multiple handlers simultaneously.

Thanks!

Kind regards,

Mathias

[Hung Bui]

Hi Mathias, 

No, they will run at the same priority level (either NRF_MESH_IRQ_PRIORITY_LOWEST or NRF_MESH_IRQ_PRIORITY_THREAD depends how you configure your mesh stack). So they will not preempt each other. You don't need to have a semaphore to handle the access. And in addition, using critical region is not allowed when in mesh call back. Have a look here: https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v4.1.0/md_doc_user_guide_mesh_interrupt_priorities.html?cp=7_2_2_5

[Mathias]

Ok, thanks for the explanation!