Function dictFreeUnlinkedEntry

src/dict.cpp:787–800

You need to call this function to really free the entry after a call * to dictUnlink(). It's safe to call this function with 'he' = NULL. */

/* You need to call this function to really free the entry after a call
 * to dictUnlink(). It's safe to call this function with 'he' = NULL. */
void dictFreeUnlinkedEntry(dict *d, dictEntry *he) {
    if (he == NULL) return;

    if (d->asyncdata) {
        dictFreeVal(d, he);
        he->v.val = nullptr;
        he->next = d->asyncdata->deGCList;
        d->asyncdata->deGCList = he;
    } else { 
        dictFreeKey(d, he);
        dictFreeVal(d, he);
        zfree(he);
    }
}

/* Destroy an entire dictionary */
int _dictClear(dict *d, dictht *ht, void(callback)(void *)) {