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fix(influxdb): Consider DST setting for UTC time conversion (#2679)

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* fix(influxdb): Consider DST setting for UTC time conversion

* Update
This commit is contained in:
Slider0007
2023-11-12 12:04:18 +01:00
committed by GitHub
parent 75b15b8e9d
commit 1094c8a0a8
1 changed files with 14 additions and 22 deletions
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36
code/components/jomjol_influxdb/interface_influxdb.cpp
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@@ -49,20 +49,16 @@ void InfluxDB_V2_Publish(std::string _measurement, std::string _key, std::string
if (_timestamp.length() > 0)
{
struct tm tm;
time_t t;
time(&t);
localtime_r(&t, &tm); // Extract DST setting from actual time to consider it for timestamp evaluation
strptime(_timestamp.c_str(), PREVALUE_TIME_FORMAT_OUTPUT, &tm);
time_t t = mktime(&tm); // Time in Localtime (looks like timezone is not used by strptime)
// struct tm * ptm;
// ptm = gmtime ( &t );
// time_t utc = mktime(ptm);
LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "Use handover timestamp: " + _timestamp + " converted GMT timestamp: " + std::to_string(t));
// utc = 2*t - utc; // Take care of timezone (looks difficult, but is easy: t = t + (t - utc), weil t-utc = timezone)
// LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "time conversion utc after: " + std::to_string(utc));
t = mktime(&tm);
LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "Timestamp: " + _timestamp + ", Timestamp (UTC): " + std::to_string(t));
sprintf(nowTimestamp,"%ld000000000", (long) t); // UTC
payload = _measurement + " " + _key + "=" + _content + " " + nowTimestamp;
}
else
@@ -165,20 +161,16 @@ void InfluxDBPublish(std::string _measurement, std::string _key, std::string _co
if (_timestamp.length() > 0)
{
struct tm tm;
time_t t;
time(&t);
localtime_r(&t, &tm); // Extract DST setting from actual time to consider it for timestamp evaluation
strptime(_timestamp.c_str(), PREVALUE_TIME_FORMAT_OUTPUT, &tm);
time_t t = mktime(&tm); // Time in Localtime (looks like timezone is not used by strptime)
// struct tm * ptm;
// ptm = gmtime ( &t );
// time_t utc = mktime(ptm);
LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "Use handover timestamp: " + _timestamp + " converted GMT timestamp: " + std::to_string(t));
// utc = 2*t - utc; // Take care of timezone (looks difficult, but is easy: t = t + (t - utc), weil t-utc = timezone)
// LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "time conversion utc after: " + std::to_string(utc));
t = mktime(&tm);
LogFile.WriteToFile(ESP_LOG_DEBUG, TAG, "Timestamp: " + _timestamp + ", Timestamp (UTC): " + std::to_string(t));
sprintf(nowTimestamp,"%ld000000000", (long) t); // UTC
payload = _measurement + " " + _key + "=" + _content + " " + nowTimestamp;
}
else