Function libcoap_sys::coap_touch_observer

pub unsafe extern "C" fn coap_touch_observer(
    context: *mut coap_context_t, 
    session: *mut coap_session_t, 
    token: *const coap_binary_t
)

Marks an observer as alive.

@param context The CoAP context to use. @param session The observer's session @param token The corresponding token that has been used for the subscription.