}

    @Test
    public void testCreateProviderTcp() {
        RdmaProvider provider = RdmaProviderFactory.createProvider("tcp");
        assertNotNull(provider, "TCP provider should always be available");
        assertTrue(provider.isAvailable(), "TCP provider should be available");
        assertEquals("TCP Fallback", provider.getProviderName());
    }

    @Test
    public void testCreateProviderDisni() {

      check(connectState == ConnectState.READY)
      events += "plan $id TCP connecting..."

      taskFaker.sleep(tcpConnectDelayNanos)

      if (yieldBeforeTcpConnectReturns) {
        taskFaker.yield()
      }

      return when {
        tcpConnectThrowable != null -> {
          events += "plan $id TCP connect failed"

import jcifs.internal.smb2.rdma.RdmaProvider;

/**
 * TCP fallback RDMA provider.
 *
 * This provider uses regular TCP connections but maintains the RDMA
 * interface for compatibility. It only supports send/receive operations
 * and does not provide true RDMA read/write capabilities.
 */
public class TcpRdmaProvider implements RdmaProvider {

    /**
     * Creates a new TCP RDMA provider instance
     */

		"Total number of failed internode calls")
	internodeDialedErrorsTotalMD = NewCounterMD(internodeDialErrorsTotal,
		"Total number of internode TCP dial timeouts and errors")
	internodeDialAvgTimeNanosMD = NewGaugeMD(internodeDialAvgTimeNanos,
		"Average dial time of internode TCP calls in nanoseconds")
	internodeSentBytesTotalMD = NewCounterMD(internodeSentBytesTotal,
		"Total number of bytes sent to other peer nodes")

 */
package jcifs.internal.smb2.rdma.tcp;

import java.nio.ByteBuffer;
import java.util.EnumSet;
import java.util.concurrent.atomic.AtomicInteger;

import jcifs.internal.smb2.rdma.RdmaAccess;
import jcifs.internal.smb2.rdma.RdmaMemoryRegion;

/**
 * TCP memory region implementation.
 *
 * For TCP fallback, memory regions are just wrappers around

import jcifs.internal.smb2.rdma.RdmaMemoryRegion;

/**
 * Unit tests for TCP RDMA provider
 */
public class TcpRdmaProviderTest {

    private TcpRdmaProvider provider;

    @BeforeEach
    public void setUp() {
        provider = new TcpRdmaProvider();
    }

    @Test
    public void testIsAvailable() {
        assertTrue(provider.isAvailable(), "TCP provider should always be available");
    }

    @Test

 * Don't start a new attempt until 250 ms after the most recent attempt was started.
 * Keep whichever TCP connection succeeds first and cancel all the others.
 * Race TCP only. Only attempt a TLS handshake on the winning TCP connection.

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.Configuration;
import jcifs.internal.smb2.rdma.disni.DisniRdmaProvider;
import jcifs.internal.smb2.rdma.tcp.TcpRdmaProvider;

/**
 * Factory for creating RDMA provider instances.
 *
 * This factory attempts to select the best available RDMA provider
 * based on system capabilities and configuration preferences.
 */

            throw new IOException("TCP RDMA receive failed", e);
        }
    }

    @Override
    public void rdmaRead(RdmaMemoryRegion localRegion, long remoteAddress, int remoteKey, int length) throws IOException {
        // TCP fallback doesn't support real RDMA read
        throw new UnsupportedOperationException("RDMA read not supported by TCP fallback");
    }

    @Override

        props.setProperty("jcifs.smb.client.useRDMA", "true");
        props.setProperty("jcifs.smb.client.rdmaProvider", "tcp");

        PropertyConfiguration config = new PropertyConfiguration(props);

        assertTrue(config.isUseRDMA(), "RDMA should be enabled");
        assertEquals("tcp", config.getRdmaProvider(), "Provider should be tcp");
    }

    @Test
    public void testRdmaAutoProvider() throws CIFSException {