// Get a region and release it
        RdmaMemoryRegion region1 = bufferManager.getSendRegion(1024);
        bufferManager.releaseSendRegion(region1);

        // Get another region - should potentially reuse from pool
        RdmaMemoryRegion region2 = bufferManager.getSendRegion(1024);
        assertNotNull(region2);

        // Both regions should be valid

     * 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();
        }
    }

    
    public void cleanup() {
        // Clean up all pooled regions
        RdmaMemoryRegion region;
        
        while ((region = availableSendRegions.poll()) != null) {
            region.close();
            totalReleased.incrementAndGet();
        }
        
        while ((region = availableReceiveRegions.poll()) != null) {
            region.close();
            totalReleased.incrementAndGet();
        }

        // } 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) {

    /** Access permissions for this memory region */
    protected final EnumSet<RdmaAccess> accessFlags;
    /** 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 */

	}
	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.

	case authTypeSigned, authTypePresigned:
		region := globalSite.Region()
		switch action {
		case policy.GetBucketLocationAction, policy.ListAllMyBucketsAction:
			region = ""
		}
		if s3Err = isReqAuthenticated(ctx, r, region, serviceS3); s3Err != ErrNone {
			return s3Err
		}
		cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
	}
	if s3Err != ErrNone {
		return s3Err
	}

            assertNotNull(sendRegion, "Send region should not be null");
            assertTrue(sendRegion.getSize() >= 4096, "Send region should be at least 4KB");
            assertNotNull(sendRegion.getBuffer(), "Send region buffer should not be null");

            RdmaMemoryRegion recvRegion = bufferManager.getReceiveRegion();
            assertNotNull(recvRegion, "Receive region should not be null");

 * RDMA memory access permissions for registered memory regions.
 * These flags control what operations can be performed on a memory region.
 */
public enum RdmaAccess {
    /**
     * Local read access to the memory region
     */
    LOCAL_READ,

    /**
     * Local write access to the memory region
     */
    LOCAL_WRITE,

    /**
     * Remote read access to the memory region
     */
    REMOTE_READ,

    /**

        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");