// Do read unlock for given LockArgs. It should return
	// * a boolean to indicate success/failure of the operation
	// * an error on failure of unlock request operation.
	// Canceling the context will abort the remote call.
	// In that case, the resource may or may not be unlocked.
	RUnlock(ctx context.Context, args LockArgs) (bool, error)

	// Do write unlock for given LockArgs. It should return

			}
			time.Sleep(time.Duration(r.Float64() * float64(lockRetryInterval)))
		}
	}
}

// Unlock unlocks the write lock.
//
// It is a run-time error if lm is not locked on entry to Unlock.
func (lm *LRWMutex) Unlock() {
	isWriteLock := true
	success := lm.unlock(isWriteLock)
	if !success {
		panic("Trying to Unlock() while no Lock() is active")
	}
}

// RUnlock releases a read lock held on lm.
//

package dsync

//go:generate msgp -file $GOFILE

// LockArgs is minimal required values for any dsync compatible lock operation.
type LockArgs struct {
	// Unique ID of lock/unlock request.
	UID string

	// Resources contains single or multiple entries to be locked/unlocked.
	Resources []string

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

	}

	l.mutex.Lock()
	defer l.mutex.Unlock()
	var locksHeld int64
	if locksHeld, reply = l.lockMap[args.Resources[0]]; !reply { // No lock is held on the given name
		return false, fmt.Errorf("Unlock attempted on an unlocked entity: %s", args.Resources[0])
	}
	if reply = locksHeld == WriteLock; !reply { // Unless it is a write lock

	// to indicate we haven't sufficiently unlocked lockers to avoid deadlocks.
	//
	// Caller may use this as an indication to call again.
	return !checkFailedUnlocks(*locks, tolerance)
}

// Unlock unlocks the write lock.
//
// It is a run-time error if dm is not locked on entry to Unlock.
func (dm *DRWMutex) Unlock(ctx context.Context) {
	dm.m.Lock()
	dm.cancelRefresh()
	dm.m.Unlock()

		}
		rl.Unlock()
		<-wlocked
		select {
		case <-rlocked:
			t.Fatal("RLocker() didn't respect the write lock")
		default:
		}
		wl.Unlock()
	}
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic(t *testing.T) {
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewLRWMutex()
	mu.Unlock()
}

	if err != nil {
		t.Fatal(err)
	}

	// unlock the file
	if err = l.Close(); err != nil {
		t.Fatal(err)
	}

	// try lock the unlocked file
	dupl, err := LockedOpenFile(f.Name(), os.O_WRONLY|os.O_CREATE, 0o600)
	if err != nil {
		t.Errorf("err = %v, want %v", err, nil)
	}

	// blocking on locked file
	locked := make(chan struct{}, 1)
	go func() {

	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewDRWMutex(ds, "test")
	mu.Unlock(context.Background())
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {
	mu := NewDRWMutex(ds, "test-unlock-panic-2")
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}

			delete(n.lockMap, resource)
		}
		n.lockMapMutex.Unlock()
	}

	return
}

// Unlock the namespace resource.
func (n *nsLockMap) unlock(volume string, path string, readLock bool) {
	resource := pathJoin(volume, path)

	n.lockMapMutex.Lock()
	defer n.lockMapMutex.Unlock()
	if _, found := n.lockMap[resource]; !found {
		return
	}
	if readLock {

	dm.Unlock(context.Background())
}

func TestSimpleLockUnlockMultipleTimes(t *testing.T) {
	dm := NewDRWMutex(ds, "test")

	dm.Lock(id, source)
	time.Sleep(time.Duration(10+(rand.Float32()*50)) * time.Millisecond)
	dm.Unlock(context.Background())

	dm.Lock(id, source)
	time.Sleep(time.Duration(10+(rand.Float32()*50)) * time.Millisecond)
	dm.Unlock(context.Background())

	dm.Lock(id, source)