pim/prometheus-sensors
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Now that mgos_prometheus_metrics_printf() allows for multiple lines with the same name, remove the hacks

Browse Source
This commit is contained in:
Pim van Pelt
2018-03-25 22:27:54 +02:00
parent fb87c4070a
commit d7677adab6
2 changed files with 10 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/dht.c
View File

@ -19,36 +19,17 @@ struct dht_sensor {
static struct dht_sensor *s_dht_sensor[MAX_DHT];
static int s_num_dht = 0;
static void print_chunk(struct mg_connection *nc, char *name, char *fmt, ...) {
char chunk[500];
int chunklen=0;
va_list ap;
snprintf(chunk, sizeof(chunk), "%s%s", name, fmt[0]=='{' ? "" : " ");
va_start(ap, fmt);
vsnprintf(chunk+strlen(chunk), sizeof(chunk)-strlen(chunk), fmt, ap);
va_end(ap);
strncat(chunk, "\n", sizeof(chunk));
chunklen=strlen(chunk);
LOG(LL_DEBUG, ("Chunk '%s' with length %d", chunk, chunklen));
mg_printf(nc, "%X\r\n%s\r\n", chunklen, chunk);
}
static void dht_prometheus_metrics(struct mg_connection *nc, void *user_data) {
int i;
// BUG -- repeated HELP and TYPE makes Prometheus parser bork :(
mgos_prometheus_metrics_printf(nc, GAUGE,
"temperature", "Temperature in celcius",
"{sensor=\"0\",type=\"DHT\"} %f", s_dht_sensor[0]->temp);
mgos_prometheus_metrics_printf(nc, GAUGE,
"humidity", "Relative humidity percentage",
"{sensor=\"0\",type=\"DHT\"} %f", s_dht_sensor[0]->humidity);
for (i=0; i<s_num_dht; i++) {
mgos_prometheus_metrics_printf(nc, GAUGE,
"temperature", "Temperature in Celcius",
"{sensor=\"%d\",type=\"DHT\"} %f", i, s_dht_sensor[i]->temp);
mgos_prometheus_metrics_printf(nc, GAUGE,
"humidity", "Relative humidity percentage",
"{sensor=\"%d\",type=\"DHT\"} %f", i, s_dht_sensor[i]->humidity);
for (i=1; i<s_num_dht; i++) {
print_chunk(nc, "temperature", "{sensor=\"%d\",type=\"DHT\"} %f", i, s_dht_sensor[i]->temp);
print_chunk(nc, "humidity", "{sensor=\"%d\",type=\"DHT\"} %f", i, s_dht_sensor[i]->humidity);
}
(void) user_data;