Function updateCachedTime

src/server.cpp:2197–2214

We take a cached value of the unix time in the global state because with * virtual memory and aging there is to store the current time in objects at * every object access, and accuracy is not needed. To access a global var is * a lot faster than calling time(NULL). * * This function should be fast because it is called at every command execution * in call(), so it is possible to decide if to

 * such info only when calling this function from serverCron() but not when
 * calling it from call(). */
void updateCachedTime() {
    long long t = ustime();
    __atomic_store(&g_pserver->ustime, &t, __ATOMIC_RELAXED);
    t /= 1000;
    __atomic_store(&g_pserver->mstime, &t, __ATOMIC_RELAXED);
    t /= 1000;
    g_pserver->unixtime = t;

    /* To get information about daylight saving time, we need to call
     * localtime_r and cache the result. However calling localtime_r in this
     * context is safe since we will never fork() while here, in the main
     * thread. The logging function will call a thread safe version of
     * localtime that has no locks. */
    struct tm tm;
    time_t ut = g_pserver->unixtime;
    localtime_r(&ut,&tm);
    __atomic_store(&g_pserver->daylight_active, &tm.tm_isdst, __ATOMIC_RELAXED);
}

void checkChildrenDone(void) {
    int statloc = 0;