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Only get and convert time when using it

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Arthur Roberts
2023-10-28 17:33:49 +01:00
parent 5c6a89df87
commit 556e0786da
1 changed files with 15 additions and 12 deletions
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27
main/main.c
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@@ -81,18 +81,6 @@ void read_from_dht22() {
// if/when we've got an actual time to do that with. I think that'd // if/when we've got an actual time to do that with. I think that'd
// avoid some weird bugs (time changing from 1970 -> current time within // avoid some weird bugs (time changing from 1970 -> current time within
// a 10 min period) // a 10 min period)
time_t epoch;
time(&epoch);
struct tm *timeinfo = localtime(&epoch);
// There must be a better way - I couldn't figure out how to do it
// nicely all at once
latest_datapoint.time.myt_sec = timeinfo->tm_sec;
latest_datapoint.time.myt_min = timeinfo->tm_min;
latest_datapoint.time.myt_hour = timeinfo->tm_hour;
latest_datapoint.time.myt_day = timeinfo->tm_mday;
latest_datapoint.time.myt_month = timeinfo->tm_mon;
latest_datapoint.time.myt_year = timeinfo->tm_year;
if (num_samples_last_ten_mins == 0) { if (num_samples_last_ten_mins == 0) {
ten_minute_rolling_average.rh = latest_datapoint.rh; ten_minute_rolling_average.rh = latest_datapoint.rh;
@@ -114,6 +102,21 @@ void read_from_dht22() {
if (num_samples_last_ten_mins >= if (num_samples_last_ten_mins >=
(CONFIG_DHT22_PERIOD_POLL * 1000 * 60 * 10)) { (CONFIG_DHT22_PERIOD_POLL * 1000 * 60 * 10)) {
num_samples_last_ten_mins = 0; num_samples_last_ten_mins = 0;
time_t epoch;
time(&epoch);
struct tm *timeinfo = localtime(&epoch);
// There must be a better way - I couldn't figure out how to do it
// nicely all at once
latest_datapoint.time.myt_sec = timeinfo->tm_sec;
// -5 to get the middle of the averaged window
latest_datapoint.time.myt_min = timeinfo->tm_min - 5;
latest_datapoint.time.myt_hour = timeinfo->tm_hour;
latest_datapoint.time.myt_day = timeinfo->tm_mday;
latest_datapoint.time.myt_month = timeinfo->tm_mon;
latest_datapoint.time.myt_year = timeinfo->tm_year;
// TODO: Write the data out somewhere - into RAM maybe // TODO: Write the data out somewhere - into RAM maybe
// TODO: maybe push the data somewhere - or put a flag up that data // TODO: maybe push the data somewhere - or put a flag up that data
// can be pushed // can be pushed