Tuesday, November 5, 2024

hashpower – Clarify the significance of Bitcoin Hash Fee utilizing cpuminer

I would like totally explanations about Bitcoin Hash Fee past the trivial ones like:

“Hashrate” refers back to the whole mixed computational energy that’s
getting used to mine and course of transactions on a Proof-of-Work
blockchain.

I’ll use two cpuminer capabilities to formulate my query:

share_result and applog. (applog is known as by share_result, so it’s importante to incorporate it right here.)

(look the capabilities on the backside after which return to the query)

I’ve tried to grasp the code however I have not discovered any clarification the place the variable hashrate will probably be used.

Please, clarify this element.

static void share_result(int outcome, const char *purpose)
{
    char s[345];
    double hashrate;
    int i;

    hashrate = 0.;
    pthread_mutex_lock(&stats_lock);
    for (i = 0; i < opt_n_threads; i++)
        hashrate += thr_hashrates[i];
    outcome ? accepted_count++ : rejected_count++;
    pthread_mutex_unlock(&stats_lock);
    
    sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate);
    applog(LOG_INFO, "accepted: %lu/%lu (%.2f%%), %s khash/s %s",
           accepted_count,
           accepted_count + rejected_count,
           100. * accepted_count / (accepted_count + rejected_count),
           s,
           outcome ? "(yay!!!)" : "(booooo)");

    if (opt_debug && purpose)
        applog(LOG_DEBUG, "DEBUG: reject purpose: %s", purpose);
}



void applog(int prio, const char *fmt, ...)
{
    va_list ap;

    va_start(ap, fmt);

#ifdef HAVE_SYSLOG_H
    if (use_syslog) {
        va_list ap2;
        char *buf;
        int len;
        
        va_copy(ap2, ap);
        len = vsnprintf(NULL, 0, fmt, ap2) + 1;
        va_end(ap2);
        buf = alloca(len);
        if (vsnprintf(buf, len, fmt, ap) >= 0)
            syslog(prio, "%s", buf);
    }
#else
    if (0) {}
#endif
    else {
        char *f;
        int len;
        time_t now;
        struct tm tm, *tm_p;

        time(&now);

        pthread_mutex_lock(&applog_lock);
        tm_p = localtime(&now);
        memcpy(&tm, tm_p, sizeof(tm));
        pthread_mutex_unlock(&applog_lock);

        len = 40 + strlen(fmt) + 2;
        f = alloca(len);
        sprintf(f, "[%d-%02d-%02d %02d:%02d:%02d] %sn",
            tm.tm_year + 1900,
            tm.tm_mon + 1,
            tm.tm_mday,
            tm.tm_hour,
            tm.tm_min,
            tm.tm_sec,
            fmt);
        pthread_mutex_lock(&applog_lock);
        vfprintf(stderr, f, ap);    /* atomic write to stderr */
        fflush(stderr);
        pthread_mutex_unlock(&applog_lock);
    }
    va_end(ap);
}

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