--- a/src/luan/modules/ThreadLuan.java	Sun Jul 28 11:06:37 2019 -0600
+++ b/src/luan/modules/ThreadLuan.java	Sun Jul 28 20:15:38 2019 -0600
@@ -238,11 +238,17 @@
 
 	public static final ReadWriteLock backupLock = new ReentrantReadWriteLock();
 
-	public static Object runInLock(Lock lock,LuanFunction fn,Object... args)
+	public static void lock(Lock lock)
 		throws LuanException, InterruptedException
 	{
 		if( !lock.tryLock(10,TimeUnit.MINUTES) )
 			throw new LuanException("failed to acquire lock");
+	}
+
+	public static Object runInLock(Lock lock,LuanFunction fn,Object... args)
+		throws LuanException, InterruptedException
+	{
+		lock(lock);
 		try {
 			return fn.call(args);
 		} finally {