/**
     * @return
     * @throws IOException
     */
    private int negotiateWrite ( CommonServerMessageBlockRequest req, boolean setmid ) throws IOException {
        if ( setmid ) {
            makeKey(req);
        }
        else {
            req.setMid(0);
            this.mid.set(1);
        }
        int n = req.encode(this.sbuf, 4);

	foo := obj.DeepCopyObject()
	t.setObjectMeta(foo, t.namer(5))
	objectMeta := t.getObjectMetaOrFail(foo)
	objectMeta.SetUID(types.UID("UID0000"))
	if err := createFn(ctx, foo); err != nil {
		t.Errorf("unexpected error: %v", err)
	}
	defer t.delete(ctx, foo)
	objectMeta.SetUID(types.UID("UID1111"))

		// The trampoline's position is not known yet, insert a relocation.
		r, _ := tramp.AddRel(objabi.R_ADDRPOWER_PCREL34)
		r.SetOff(0)
		r.SetSiz(8) // This spans 2 words.
		r.SetSym(target)
		r.SetAdd(offset)
	} else {
		// Used for default build mode for an executable
		// Address of the call target is generated using
		// relocation and doesn't depend on r2 (TOC).

                SmbComSeek seekReq = new SmbComSeek(config, 0);
                seekReq.setMode(0x2); // from EOF
                SmbComSeekResponse seekResp = new SmbComSeekResponse(config);
                seekReq.setFid(response.getFid());
                try {
                    h.send(seekReq, seekResp);
                    if ( log.isDebugEnabled() && seekResp.getOffset() != fileSize ) {

		mutex.Lock()
		defer mutex.Unlock()
		switch action.GetVerb() {
		case "create":
			if obj.GetUID() != "" {
				return true, nil, errors.New("UID must not be set on create")
			}
			if obj.GetResourceVersion() != "" {
				return true, nil, errors.New("ResourceVersion must not be set on create")
			}
			obj.SetUID(types.UID(fmt.Sprintf("UID-%d", uidCounter)))
			uidCounter++

	// Relocation to retrieve the external address
	sb.AddBytes(make([]byte, 8))
	r, _ := sb.AddRel(objabi.R_ADDR)
	r.SetSym(extsym.Sym())
	r.SetSiz(uint8(ctxt.Arch.PtrSize))
	// TODO: maybe this could be
	// sb.SetSize(0)
	// sb.SetData(nil)
	// sb.AddAddr(ctxt.Arch, extsym.Sym())
	// If the size is not 0 to begin with, I don't think the added 8 bytes
	// of zeros are necessary.