* Release a send region back to the pool
     *
     * @param region memory region to release
     */
    public void releaseSendRegion(RdmaMemoryRegion region) {
        if (region.getSize() == sendBufferSize && availableSendRegions.size() < initialSendBuffers * 2) {
            availableSendRegions.offer(region);
        } else {
            region.close();
            totalReleased.incrementAndGet();
        }
    }

	if err = newTestConfig(globalMinioDefaultRegion, objLayer); err != nil {
		t.Fatalf("Init Test config failed")
	}

	if globalSite.Region() != globalMinioDefaultRegion {
		t.Errorf("Expecting region `us-east-1` found %s", globalSite.Region())
	}

	// Set new region and verify.
	config.SetRegion(globalServerConfig, "us-west-1")
	site, err := config.LookupSite(
		globalServerConfig[config.SiteSubSys][config.Default],

	}
	return newAPIEndpoints
}

// Prints common server startup message. Prints credential, region and browser access.
func printServerCommonMsg(apiEndpoints []string) {
	// Get saved credentials.
	cred := globalActiveCred

	// Get saved region.
	region := globalSite.Region()

	apiEndpointStr := strings.TrimSpace(strings.Join(apiEndpoints, "  "))
	// Colorize the message and print.

		want string
	}{
		{
			arn: ARN{
				Partition:    "minio",
				Service:      "iam",
				Region:       "us-east-1",
				ResourceType: "role",
				ResourceID:   "my-role",
			},
			want: "arn:minio:iam:us-east-1::role/my-role",
		},
		{
			arn: ARN{
				Partition:    "minio",
				Service:      "",
				Region:       "us-east-1",
				ResourceType: "role",
				ResourceID:   "my-role",
			},

        // } catch (Exception e) {
        //     throw new RuntimeException("Failed to register memory region", e);
        // }

        this.memoryRegister = new Object(); // Placeholder

        log.debug("DiSNI memory region registered, size: {}", buffer.remaining());
    }

    @Override
    public void invalidate() {
        if (valid && memoryRegister != null) {

    /** Local key for accessing this memory region */
    protected final int localKey;
    /** Remote key for remote RDMA access */
    protected final int remoteKey;
    /** Virtual address of the memory region */
    protected final long address;
    /** Flag indicating if the memory region is still valid */
    protected volatile boolean valid;

    /**
     * Create new RDMA memory region
     *

        RdmaMemoryRegion region = bufferManager.getSendRegion(1024);
        assertNotNull(region, "Send region should not be null");
        assertTrue(region.getSize() >= 1024, "Region should be at least requested size");
        assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ), "Should have local read access");
        assertTrue(region.hasAccess(RdmaAccess.REMOTE_READ), "Should have remote read access");

}

// Validate - checks whether queue has valid values or not.
func (q Queue) Validate(region string, targetList *TargetList) error {
	if q.ARN.region == "" {
		if !targetList.Exists(q.ARN.TargetID) {
			return &ErrARNNotFound{q.ARN}
		}
		return nil
	}

	if region != "" && q.ARN.region != region {
		return &ErrUnknownRegion{q.ARN.region}
	}

	if !targetList.Exists(q.ARN.TargetID) {
		return &ErrARNNotFound{q.ARN}

	}

	cred.scope.region = credElements[1]
	// Verify if region is valid.
	sRegion := cred.scope.region
	// Region is set to be empty, we use whatever was sent by the
	// request and proceed further. This is a work-around to address
	// an important problem for ListBuckets() getting signed with
	// different regions.
	if region == "" {
		region = sRegion
	}

        RdmaMemoryRegion region = provider.registerMemory(buffer, access);
        assertNotNull(region, "Memory region should not be null");
        assertEquals(buffer, region.getBuffer(), "Buffer should match");
        assertEquals(1024, region.getSize(), "Size should match buffer size");
        assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ), "Should have local read access");