import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Lock response message. This response acknowledges the successful
 * acquisition or release of byte-range locks.
 *
 * @author mbechler
 *
 */
public class Smb2LockResponse extends ServerMessageBlock2Response {

    /**
     * Constructs an SMB2 lock response with the given configuration.
     *

import com.google.common.annotations.VisibleForTesting;
import com.google.j2objc.annotations.ReflectionSupport;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.AbstractOwnableSynchronizer;
import java.util.concurrent.locks.LockSupport;
import org.jspecify.annotations.Nullable;

@GwtCompatible
@ReflectionSupport(value = ReflectionSupport.Level.FULL)

	Resources []string

	// Owner represents unique ID for this instance, an owner who originally requested
	// the locked resource, useful primarily in figuring out stale locks.
	Owner string

	// Source contains the line number, function and file name of the code
	// on the client node that requested the lock.
	Source string `msgp:"omitempty"`

	}
	// Wait for mutex
	defer l.getMutex()()
	if ctx.Err() != nil {
		return false, ctx.Err()
	}
	if !l.canTakeLock(args.Resources...) {
		// Not all locks can be taken on resources,
		// reject it completely.
		return false, nil
	}

	// No locks held on the all resources, so claim write
	// lock on all resources at once.
	now := UTCNow()
	for i, resource := range args.Resources {

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

/**
 * Cache entry for directory contents with thread-safe operations
 */
public class DirectoryCacheEntry {

    private final String directoryPath;

// RLockedFile represents a read locked file, implements a special
// closer which only closes the associated *os.File when the ref count.
// has reached zero, i.e when all the readers have given up their locks.
type RLockedFile struct {
	*LockedFile
	mutex sync.Mutex
	refs  int // Holds read lock refs.
}

// IsClosed - Check if the rlocked file is already closed.
func (r *RLockedFile) IsClosed() bool {

		//    a new entry in lockMap and acquires a lock for the same resource.

		<-lk2ch
		lk3ok := <-lk3ch
		lk4ok := <-lk4ch

		if lk3ok && lk4ok {
			t.Fatalf("multiple locks acquired; iteration=%d, lk3=%t, lk4=%t", i, lk3ok, lk4ok)
		}
	}

			UID:    uuid,
			Owner:  owners[i%len(owners)],
			Group:  true,
			Quorum: 3,
		}
		lris = append(lris, lri)
		locksHeld[resource] = []lockRequesterInfo{lri}
	}

	// Add a few concurrent read locks to the mix
	for i := range 50 {
		resource := fmt.Sprintf("bucket/get-object-%d", i)
		lri := lockRequesterInfo{
			Name:   resource,
			UID:    mustGetUUID(),
			Owner:  owners[i%len(owners)],
			Quorum: 2,

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

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

import jcifs.CIFSContext;
import jcifs.smb.SmbFile;

/**
 * SMB2/SMB3 Lease Manager
 *

            return "Free up disk space or use a different location";
        case QUOTA:
            return "Contact administrator to increase quota limits";
        case LOCK:
            return "Release existing locks or wait for them to be released";
        case BUFFER:
            return "Reduce buffer usage or increase buffer pool size";
        case THREAD_POOL: