Function esp_idf_bindgen::esp_event_handler_instance_unregister_with

pub unsafe extern "C" fn esp_event_handler_instance_unregister_with(
    event_loop: esp_event_loop_handle_t, 
    event_base: esp_event_base_t, 
    event_id: i32, 
    instance: esp_event_handler_instance_t
) -> esp_err_t

@brief Unregister a handler instance from a specific event loop.

This function can be used to unregister a handler so that it no longer gets called during dispatch. Handlers can be unregistered for either: (1) specific events, (2) all events of a certain event base, or (3) all events known by the system event loop

• specific events: specify exact event_base and event_id
• all events of a certain base: specify exact event_base and use ESP_EVENT_ANY_ID as the event_id
• all events known by the loop: use ESP_EVENT_ANY_BASE for event_base and ESP_EVENT_ANY_ID as the event_id

This function ignores unregistration of handler instances that have not been previously registered.

@param[in] event_loop the event loop with which to unregister this handler function @param[in] event_base the base of the event with which to unregister the handler @param[in] event_id the id of the event with which to unregister the handler @param[in] instance the instance object of the registration to be unregistered

@return

• ESP_OK: Success
• ESP_ERR_INVALID_ARG: Invalid combination of event base and event id
• Others: Fail