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Expose mgos_*_stats in Prometheus

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Pim van Pelt
2018-04-04 14:03:50 +02:00
parent b4b81f7542
commit 9a71d580c0
6 changed files with 130 additions and 17 deletions
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21
src/veml6075_drv.c
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@ -9,6 +9,8 @@
static struct mgos_veml6075 *s_veml6075;
static void veml6075_prometheus_metrics(struct mg_connection *nc, void *user_data) {
struct mgos_veml6075_stats stats;
mgos_prometheus_metrics_printf(nc, GAUGE,
"UV", "Ultra Violet light intensity, in sensor counts",
"{band=\"UVA\",type=\"VEML6075\", sensor=\"0\"} %f", mgos_veml6075_getUVA(s_veml6075));
@ -19,6 +21,25 @@ static void veml6075_prometheus_metrics(struct mg_connection *nc, void *user_dat
"UVIndex", "2: Low, 5.5 Moderate, 7.5 High, 10.5 Very High, else Extreme",
"{sensor=\"0\",type=\"VEML6075\"} %f", mgos_veml6075_getUVIndex(s_veml6075));
if (mgos_veml6075_getStats(s_veml6075, &stats)) {
mgos_prometheus_metrics_printf(nc, COUNTER,
"sensor_read_total", "Total reads from sensor",
"{sensor=\"0\",type=\"VEML6075\"} %u", stats.read);
mgos_prometheus_metrics_printf(nc, COUNTER,
"sensor_read_success_total", "Total successful reads from sensor",
"{sensor=\"0\",type=\"VEML6075\"} %u", stats.read_success);
mgos_prometheus_metrics_printf(nc, COUNTER,
"sensor_read_success_cached_total", "Total successful cached reads from sensor",
"{sensor=\"0\",type=\"VEML6075\"} %u", stats.read_success_cached);
uint32_t errors = stats.read - stats.read_success - stats.read_success_cached;
mgos_prometheus_metrics_printf(nc, COUNTER,
"sensor_read_error_total", "Total unsuccessful reads from sensor",
"{sensor=\"0\",type=\"VEML6075\"} %u", errors);
mgos_prometheus_metrics_printf(nc, COUNTER,
"sensor_read_success_usecs_total", "Total microseconds spent in reads from sensor",
"{sensor=\"0\",type=\"VEML6075\"} %f", stats.read_success_usecs);
}
(void) user_data;
}