void pushxGenericCommand(client *c, int where) {
    int j, pushed = 0;
    robj *subject;

    if ((subject = lookupKeyWriteOrReply(c,c->argv[1],shared.czero)) == NULL ||
        checkType(c,subject,OBJ_LIST)) return;

    for (j = 2; j < c->argc; j++) {
        listTypePush(subject,c->argv[j],where);
        pushed++;
    }

    addReplyLongLong(c,listTypeLength(subject));

    if (pushed) {
        char *event = (where == LIST_HEAD) ? "lpush" : "rpush";
        signalModifiedKey(c,c->db,c->argv[1]);
        notifyKeyspaceEvent(NOTIFY_LIST,event,c->argv[1],c->db->id);
    }
    server.dirty += pushed;
}
void pushxGenericCommand(client *c, int where) {
    int j, pushed = 0;
    robj *subject;

    if ((subject = lookupKeyWriteOrReply(c,c->argv[1],shared.czero)) == NULL ||
        checkType(c,subject,OBJ_LIST)) return;

    for (j = 2; j < c->argc; j++) {
        listTypePush(subject,c->argv[j],where);
        pushed++;
    }

    addReplyLongLong(c,listTypeLength(subject));

    if (pushed) {
        char *event = (where == LIST_HEAD) ? "lpush" : "rpush";
        signalModifiedKey(c,c->db,c->argv[1]);
        notifyKeyspaceEvent(NOTIFY_LIST,event,c->argv[1],c->db->id);
    }
    server.dirty += pushed;
}