Zephyr: How to get active Bluetooth connections

[Anton Maes]

I can see all the options i have in the Bluetooth connection management but what I can't figure out is how to retrieve the bt_conn objects for the active connections. 
https://docs.zephyrproject.org/latest/connectivity/bluetooth/api/connection_mgmt.html

What I'm trying to do is see if there is something like:

main(){ 

while(1) { 

     if(BT_Connected){   // This is what I can't figure out, is there a handle for this? 

        power up sensor and read 

        send notification 

    } else{

        LOG_INF("no bluetooth connection") 
    }

wait 5 seconds

}

This must be something super simple but i'm running out of novel google queries to try. 

[Anton Maes]

Would this make the most sense to pass as a callback to foreach? Or is there a more elegant way to accomplish this? 

void connect_active(struct bt_conn *conn, void *data) {

    if (bt_conn_state(conn) == BT_CONN_CONNECTED) {

        //power up sensor 
         //send notificaiton 
         //power down sensor 

    }else{

        printk("Bluetooth connection is not established\n");

    }

}


void main(){

    bt_conn_foreach(connect_active, NULL);

    k_sleep(K_SECONDS(5));
}