// RPCStats holds information about the DHCP/TCP metrics and errors
type RPCStats struct {
	Errs uint64

	DialAvgDuration uint64
	TTFBAvgDuration uint64
	DialErrs        uint64
}

// GetRPCStats returns RPC stats, include calls errors and dhcp/tcp metrics
func GetRPCStats() RPCStats {
	s := RPCStats{
		Errs:     atomic.LoadUint64(&globalStats.errs),
		DialErrs: atomic.LoadUint64(&globalStats.tcpDialErrs),
	}

import jcifs.dcerpc.ndr.NdrException;
import jcifs.dcerpc.ndr.NdrObject;

/**
 * RPC data structure definitions for DCE/RPC protocol support.
 * This class contains NDR (Network Data Representation) encodable/decodable structures
 * used in DCE/RPC communications including UUID, policy handles, unicode strings, and SIDs.
 */
@SuppressWarnings("all")
public class rpc {

    /**
     * Private constructor to prevent instantiation of utility class.

import jcifs.smb1.dcerpc.ndr.NdrObject;

/**
 * RPC data structure definitions for DCE/RPC protocol support.
 * This class contains NDR (Network Data Representation) encodable/decodable structures
 * used in DCE/RPC communications.
 */
public class rpc {

    /**
     * Private constructor to prevent instantiation of utility class.
     */
    private rpc() {
        // Utility class
    }

    /**

interface rpc
{
	/* base types */

	typedef unsigned char uint8_t;
	typedef unsigned short uint16_t;
	typedef unsigned int uint32_t;

	/* dce */

	typedef struct {
	    uint32_t time_low;
	    uint16_t time_mid;
	    uint16_t time_hi_and_version;
	    uint8_t clock_seq_hi_and_reserved;
	    uint8_t clock_seq_low;
	    uint8_t node[6];
	} uuid_t;

	/* win32 stuff */

	typedef struct {
		uint32_t type;

interface rpc
{
	/* base types */

	typedef unsigned char uint8_t;
	typedef unsigned short uint16_t;
	typedef unsigned int uint32_t;

	/* dce */

	typedef struct {
	    uint32_t time_low;
	    uint16_t time_mid;
	    uint16_t time_hi_and_version;
	    uint8_t clock_seq_hi_and_reserved;
	    uint8_t clock_seq_low;
	    uint8_t node[6];
	} uuid_t;

	/* win32 stuff */

	typedef struct {
		uint32_t type;

        this.handle = handle;
        final MsrpcSamrOpenDomain rpc = new MsrpcSamrOpenDomain(policyHandle, access, sid, this);
        handle.sendrecv(rpc);
        if (rpc.retval != 0) {
            throw new SmbException(rpc.retval, false);
        }
    }

    /**
     * Closes this SAM domain handle.
     *
     * @throws IOException if an I/O error occurs during handle closure
     */

     * @throws IOException if an I/O error occurs during handle closure
     */
    public void close() throws IOException {
        final MsrpcSamrCloseHandle rpc = new MsrpcSamrCloseHandle(this);
        handle.sendrecv(rpc);
        if (rpc.retval != 0) {
            throw new SmbException(rpc.retval, false);
        }
    }

            throws IOException {
        this.handle = handle;
        final MsrpcSamrOpenAlias rpc = new MsrpcSamrOpenAlias(domainHandle, access, rid, this);
        handle.sendrecv(rpc);
        if (rpc.retval != 0) {
            throw new SmbException(rpc.retval, false);
        }
        this.opened = true;
    }

    @Override
    public synchronized void close() throws IOException {

    private DcerpcHandle rpcHandle;

    // Witness RPC interface
    private static final String WITNESS_INTERFACE_UUID = "ccd8c074-d0e5-4a40-92b4-d074faa6ba28";
    private static final int WITNESS_INTERFACE_VERSION = 1;

    // RPC connection parameters
    private static final int WITNESS_RPC_PORT = 135;
    private static final int WITNESS_RPC_TIMEOUT_MS = 5000;

    // RPC operation numbers

        // Arrange
        int access = 1;
        int rid = 100;

        // Mock the behavior of sendrecv for MsrpcSamrOpenAlias
        doAnswer(invocation -> {
            MsrpcSamrOpenAlias rpc = invocation.getArgument(0);
            rpc.retval = 0; // Simulate success
            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcSamrOpenAlias.class));

        // Act