Function PrintLocalTimeS

library/cpp/logger/global/rty_formater.cpp:14–27

    constexpr size_t LocalTimeSBufferSize = sizeof("2017-07-24 12:20:34.313 +0300");

    size_t PrintLocalTimeS(const TInstant instant, char* const begin, const char* const end) {
        Y_ABORT_UNLESS(static_cast<size_t>(end - begin) >= LocalTimeSBufferSize);

        struct tm tm;
        instant.LocalTime(&tm);

        // both stftime and snprintf exclude the terminating null byte from the return value
        char* pos = begin;
        pos += strftime(pos, end - pos, "%Y-%m-%d %H:%M:%S.", &tm);
        pos += snprintf(pos, end - pos, "%03" PRIu32, instant.MilliSecondsOfSecond());
        pos += strftime(pos, end - pos, " %z", &tm);
        Y_ABORT_UNLESS(LocalTimeSBufferSize - 1 == pos - begin); // together with Y_ABORT_UNLESS above this also implies pos<=end
        return (pos - begin);
    }
}

namespace NLoggingImpl {