User Documentation

Data recorder
System manual
2696790000/02/04.2020
96
Auxiliary functions for the formatting of time stamps and simple determina-
tion of variable names:
static const char *TimeStamp2DateStr(uint64_t timeStamp) {
static char sDateStr[80];
time_t secs, usecs;
struct tm *p;
/* seconds and μs since 1970-01-01 */
secs = (int)(timeStamp / 1000000);
usecs = (int)(timeStamp % 1000000);
p = localtime(&secs);
if (p != 0) {
snprintf(sDateStr, sizeof sDateStr, "%04u-%02u-%02u %02u:%02u:%02u.
%03u", p->tm_year+1900, p->tm_mon+1, p->tm_mday, p->tm_hour, p->tm_min, p-
>tm_sec, (unsigned)usecs);
}
else {
snprintf(sDateStr, sizeof sDateStr, "xxxx-xx-xx xx:xx:xx.xxx");
}
return sDateStr;
}
/
****************************************************************************/
static const char *VarIdToName(DataRecApiVarId varId) {
if (varId == sTempId) {
return scVarNameTemp;
}
if (varId == sPresId) {
return scVarNamePres;
}
return "unknown";
}