Function dequeue

ds4_server.c:11052–11065

        /* An in-flight backend call still owns the session. Even during
         * shutdown or client cancellation, wait for that safe boundary before
         * the stack-owned job and its cancellation callback can be released. */
        pthread_cond_wait(&s->model_cv, &s->model_mu);
    }
    int rc = slot->decode_rc;
    if (g_stop_requested && rc == 0) rc = DS4_SESSION_SYNC_INTERRUPTED;
    if (rc != 0 && err && errlen) {
        snprintf(err, errlen, "%s",
                 g_stop_requested ? "shutdown requested" :
                 (slot->decode_err[0] ? slot->decode_err : "decode interrupted"));
    }
    slot->decode_done = false;
    pthread_mutex_unlock(&s->model_mu);
    return rc;
}

static long server_decode_coalesce_us(void) {
    long us = 2000;