Function hsetnxCommand

app/redis-6.2.6/src/t_hash.c:643–657

 *----------------------------------------------------------------------------*/

void hsetnxCommand(client *c) {
    robj *o;
    if ((o = hashTypeLookupWriteOrCreate(c,c->argv[1])) == NULL) return;
    hashTypeTryConversion(o,c->argv,2,3);

    if (hashTypeExists(o, c->argv[2]->ptr)) {
        addReply(c, shared.czero);
    } else {
        hashTypeSet(o,c->argv[2]->ptr,c->argv[3]->ptr,HASH_SET_COPY);
        addReply(c, shared.cone);
        signalModifiedKey(c,c->db,c->argv[1]);
        notifyKeyspaceEvent(NOTIFY_HASH,"hset",c->argv[1],c->db->id);
        server.dirty++;
    }
}

void hsetCommand(client *c) {
    int i, created = 0;