return new TcpMemoryRegion(buffer, access);
    }

    @Override
    public String getProviderName() {
        return "TCP Fallback";
    }

    @Override
    public int getMaxMessageSize() {
        return 65536; // 64KB for TCP
    }

    @Override
    public void shutdown() {
        // Nothing to clean up for TCP
    }

     */
    String getProviderName();

    /**
     * Get maximum message size supported by this provider
     *
     * @return maximum message size in bytes
     */
    int getMaxMessageSize();

    /**
     * Clean up provider resources
     *
     * This method should be called when the provider is no longer needed
     * to release any system resources.
     */
    void shutdown();

        assertTrue(provider.getMaxMessageSize() > 0, "Max message size should be positive");

        System.out.println("Selected RDMA provider: " + provider.getProviderName());
        System.out.println("Supported capabilities: " + provider.getSupportedCapabilities());
        System.out.println("Max message size: " + provider.getMaxMessageSize());
    }

    @Test

            }
        }
    }

    @Override
    public String getProviderName() {
        return "DiSNI (InfiniBand/RoCE)";
    }

    @Override
    public int getMaxMessageSize() {
        return 2147483647; // 2GB - DiSNI theoretical limit
    }

    @Override
    public void shutdown() {
        if (endpointGroup != null) {
            try {

    public void testGetProviderName() {
        assertEquals("TCP Fallback", provider.getProviderName());
    }

    @Test
    public void testGetMaxMessageSize() {
        assertEquals(65536, provider.getMaxMessageSize(), "TCP provider should have 64KB limit");
    }

    @Test
    public void testShutdown() {
        // Should not throw exception
        assertDoesNotThrow(() -> provider.shutdown());
    }

    
    /**
     * Get provider name (e.g., "InfiniBand", "iWARP", "RoCE")
     */
    String getProviderName();
    
    /**
     * Get maximum message size supported
     */
    int getMaxMessageSize();
    
    /**
     * Clean up provider resources
     */
    void shutdown();
}

public enum RdmaAccess {
    LOCAL_READ,
    LOCAL_WRITE,
    REMOTE_READ,
    REMOTE_WRITE,