Function createObject

src/object.cpp:44–64

/* ===================== Creation and parsing of objects ==================== */

robj *createObject(int type, void *ptr) {
    size_t mvccExtraBytes = g_pserver->fActiveReplica ? sizeof(redisObjectExtended) : 0;
    char *oB = (char*)zcalloc(sizeof(robj)+mvccExtraBytes, MALLOC_SHARED);
    robj *o = reinterpret_cast<robj*>(oB + mvccExtraBytes);
    
    new (o) redisObject;
    o->type = type;
    o->encoding = OBJ_ENCODING_RAW;
    o->m_ptr = ptr;
    o->setrefcount(1);
    setMvccTstamp(o, OBJ_MVCC_INVALID);

    /* Set the LRU to the current lruclock (minutes resolution), or
     * alternatively the LFU counter. */
    if (g_pserver->maxmemory_policy & MAXMEMORY_FLAG_LFU) {
        o->lru = (LFUGetTimeInMinutes()<<8) | LFU_INIT_VAL;
    } else {
        o->lru = LRU_CLOCK();
    }
    return o;
}

/* Set a special refcount in the object to make it "shared":
 * incrRefCount and decrRefCount() will test for this special refcount