How to correct use dm_device_delete_all

[Vyacheslav Lebets]

Hi All ! I was read many posts about this function and do not understand how to check if all data is deleted.

In my situation I do:

1. Start advertising for bonded divices

2. Unexpectedly in advertising state, I need create a new pairing and I call:

   • dm_device_delete_all - for deleting information about all bonded peers
   • sd_ble_gap_adv_start - start advertising whith new params.

The dm_device_delete_all return NRF_SUCCESS, but data not clear.

Is the true to check

DM_CLEAR_OPERATION_ID == p_event->event_id

in device_manager_evt_handler(...) or is there another solution ?

Thanks!!!

[Vyacheslav Lebets]

In device_manager.h, above declaration of function dm_device_delete_all is writed: "If this API returns NRF_SUCCESS, DM_EVT_DEVICE_CONTEXT_DELETED event is notified to the application for each device that is deleted from the data base"

I simply add code:

case DM_EVT_DEVICE_CONTEXT_DELETED:

in device_manager_evt_handler(...) and hook clearing result.

Attension: if DM "white list" is empy, that event is not occur.

[Vyacheslav Lebets]

//where do you need:

static ble_gap_whitelist_t  whitelist;

whitelist.addr_count = 1;
whitelist.irk_count  = 1;
whitelist.pp_addrs   = p_whitelist_addr;
whitelist.pp_irks    = p_whitelist_irk;
uint32_t err_code = dm_whitelist_create(&m_app_handle, &whitelist);
if ((whitelist.addr_count != 0) || (whitelist.irk_count != 0))
{
   dm_device_delete_all(&m_app_handle);
}

and in device_manager_evt_handler:

static uint32_t device_manager_evt_handler(...)
{
case DM_EVT_DEVICE_CONTEXT_DELETED:		//Indicates that device context is deleted
	{
		//DM_EVT_DEVICE_CONTEXT_DELETED event is notified to the application 
		// **for each device** that is deleted from the data base.
		//Event result notified along with the event indicates success or failure of this procedure.
		
		**//!!! ANY YOU CODE !!!**
		break;
	}