MQTT simple + timer

[kamacode]

Hello 

I wanted to use the MQTT simple example (which works great) and add timer, so that MQTT will be send every 20 seconds:

on main I added:

struct k_timer my_timer;

k_timer_init(&bz_timer, bz_func, NULL);
k_timer_start(&bz_timer, K_SECONDS(20), K_SECONDS(20));

then on bz_func : 

void bz_func ()
{
int ret;
for (int i = 0; i < 100; i++)
{
ret = data_publish(&client,
MQTT_QOS_1_AT_LEAST_ONCE,
"CONFIG_BUTTON_EVENT_PUBLISH_MSG",
sizeof("CONFIG_BUTTON_EVENT_PUBLISH_MSG")-1);
if (ret) {
LOG_ERR("Publish failed: %d", ret);
}
}
}

this fails to send, even more, once timer is first activated, I can not send via the EVB button

please advice how it' s best to accomplish what I need (send MQTT automatically every 20 seconds )

[kamacode]

resolved that.

if anyone will encounter that, of course it will fail since timer is in interrupt context, we can not call the MQTT from it

the solution is calling to workqueue from the timer, which works great!