*/
package jcifs.internal.smb2.rdma;

/**
 * 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,

    /**

        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");

        // Verify provider was called
        verify(mockProvider, atLeastOnce()).registerMemory(any(ByteBuffer.class), any());

    @SuppressWarnings("unused")
    private int convertAccessFlags(EnumSet<RdmaAccess> access) {
        int flags = 0;

        // In real implementation, this would convert to DiSNI constants:
        // if (access.contains(RdmaAccess.LOCAL_READ)) {
        //     flags |= IbvMr.IBV_ACCESS_LOCAL_READ;
        // }
        // if (access.contains(RdmaAccess.LOCAL_WRITE)) {
        //     flags |= IbvMr.IBV_ACCESS_LOCAL_WRITE;

            try {
                ByteBuffer buffer = ByteBuffer.allocateDirect(sendBufferSize);
                RdmaMemoryRegion region = provider.registerMemory(buffer, EnumSet.of(RdmaAccess.LOCAL_READ, RdmaAccess.REMOTE_READ));
                availableSendRegions.offer(region);
                totalAllocated.incrementAndGet();
            } catch (IOException e) {

    ByteBuffer buffer = ByteBuffer.allocateDirect(4096);
    RdmaMemoryRegion region = provider.registerMemory(buffer, 
        EnumSet.of(RdmaAccess.LOCAL_READ, RdmaAccess.REMOTE_READ));
    
    assertNotNull(region);
    assertEquals(4096, region.getSize());
    assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ));
    
    region.close();
}

@Test
public void testRdmaBufferManager() throws Exception {

    }

    @Test
    public void testRegisterMemory() throws Exception {
        ByteBuffer buffer = ByteBuffer.allocateDirect(1024);
        EnumSet<RdmaAccess> access = EnumSet.of(RdmaAccess.LOCAL_READ, RdmaAccess.LOCAL_WRITE);

        RdmaMemoryRegion region = provider.registerMemory(buffer, access);
        assertNotNull(region, "Memory region should not be null");

package jcifs.internal.smb2.rdma.tcp;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.EnumSet;
import java.util.Set;

import jcifs.internal.smb2.rdma.RdmaAccess;
import jcifs.internal.smb2.rdma.RdmaCapability;
import jcifs.internal.smb2.rdma.RdmaConnection;
import jcifs.internal.smb2.rdma.RdmaMemoryRegion;
import jcifs.internal.smb2.rdma.RdmaProvider;

/**

    /** Memory buffer for RDMA operations */
    protected final ByteBuffer buffer;
    /** 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;

 */
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
 * ByteBuffers since no real RDMA registration is needed.

import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.EnumSet;
import java.util.Set;

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

import jcifs.internal.smb2.rdma.RdmaAccess;
import jcifs.internal.smb2.rdma.RdmaCapability;
import jcifs.internal.smb2.rdma.RdmaConnection;
import jcifs.internal.smb2.rdma.RdmaMemoryRegion;
import jcifs.internal.smb2.rdma.RdmaProvider;

/**