dt_status_t dt_representation_to_timestamp()

in src/unix/dt_unix.c [98:138]

• 32 lines of code
• 9 McCabe index (conditional complexity)

dt_status_t dt_representation_to_timestamp(const dt_representation_t *representation, const dt_timezone_t *timezone,
                                           dt_timestamp_t *first_timestamp, dt_timestamp_t *second_timestamp)
{
    struct tm tm = {0,};
    time_t posix_time = WRONG_POSIX_TIME;

    dt_status_t status = DT_UNKNOWN_ERROR;

    if (!representation || !first_timestamp) {
        return DT_INVALID_ARGUMENT;
    }

    if (DT_OK != (status = dt_representation_to_tm(representation, &tm))) {
        return status;
    }

    if (timezone == NULL) {
        posix_time = mktime(&tm);
        if (posix_time != WRONG_POSIX_TIME) {
            first_timestamp->second = posix_time;
            first_timestamp->nano_second = representation->nano_second;
            return DT_OK;
        } else {
            return DT_SYSTEM_CALL_ERROR;
        }

    }

    if (timezone != NULL && timezone->state == NULL) {
        return DT_INVALID_ARGUMENT;
    }


    if (WRONG_POSIX_TIME == (posix_time = tz_mktime(timezone->state, &tm))) {
        return DT_INVALID_ARGUMENT;
    }

    first_timestamp->second = posix_time;
    first_timestamp->nano_second = representation->nano_second;
    return DT_OK;
}