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strictly stick to UTC/GMT for timestamp calculations (issue #23)

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Mario Fink 2023-06-27 00:57:11 +02:00
parent 55f093156d
commit b45fae576f
1 changed files with 9 additions and 5 deletions
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14
lib/imc_channel.hpp
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@ -9,6 +9,7 @@
#include <math.h>
#include <chrono>
#include <ctime>
#include <time.h>
//---------------------------------------------------------------------------//
@ -301,9 +302,12 @@ namespace imc
double secs_int;
trigger_time_frac_secs_ = modf((double)secs,&secs_int);
tms.tm_sec = (int)secs_int;
//tms.tm_isdst = -1;
// generate std::chrono::system_clock::time_point type
std::time_t ts = std::mktime(&tms);
// ( - https://www.gnu.org/software/libc/manual/html_node/Broken_002ddown-Time.html
// - https://man7.org/linux/man-pages/man3/tzset.3.html )
std::time_t ts = timegm(&tms); //std::mktime(&tms);
trigger_time_ = std::chrono::system_clock::from_time_t(ts);
}
@ -413,8 +417,8 @@ namespace imc
<<std::setw(width)<<std::left<<"comment:"<<comment_<<"\n"
<<std::setw(width)<<std::left<<"origin:"<<origin_<<"\n"
<<std::setw(width)<<std::left<<"description:"<<text_<<"\n"
<<std::setw(width)<<std::left<<"trigger-time-nt:"<<std::put_time(std::localtime(&tt),"%FT%T")<<"\n"
<<std::setw(width)<<std::left<<"trigger-time:"<<std::put_time(std::localtime(&att),"%FT%T")<<"\n"
<<std::setw(width)<<std::left<<"trigger-time-nt:"<<std::put_time(std::gmtime(&tt),"%FT%T")<<"\n"
<<std::setw(width)<<std::left<<"trigger-time:"<<std::put_time(std::gmtime(&att),"%FT%T")<<"\n"
<<std::setw(width)<<std::left<<"language-code:"<<language_code_<<"\n"
<<std::setw(width)<<std::left<<"codepage:"<<codepage_<<"\n"
<<std::setw(width)<<std::left<<"yname:"<<yname_<<"\n"
@ -451,8 +455,8 @@ namespace imc
<<"\",\"comment\":\""<<comment_
<<"\",\"origin\":\""<<origin_
<<"\",\"description\":\""<<text_
<<"\",\"trigger-time-nt\":\""<<std::put_time(std::localtime(&tt),"%FT%T")
<<"\",\"trigger-time\":\""<<std::put_time(std::localtime(&att),"%FT%T")
<<"\",\"trigger-time-nt\":\""<<std::put_time(std::gmtime(&tt),"%FT%T")
<<"\",\"trigger-time\":\""<<std::put_time(std::gmtime(&att),"%FT%T")
<<"\",\"language-code\":\""<<language_code_
<<"\",\"codepage\":\""<<codepage_
<<"\",\"yname\":\""<<prepjsonstr(yname_)