From ebedd06fdb39a2ddc47622c9ab124fbcd2c4c7bb Mon Sep 17 00:00:00 2001
From: Stephen Seo <seo.disparate@gmail.com>
Date: Thu, 24 Oct 2019 17:51:40 +0900
Subject: [PATCH] Add missing impl fn to TSLQueue

---
 cpp_impl/src/TSLQueue.hpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/cpp_impl/src/TSLQueue.hpp b/cpp_impl/src/TSLQueue.hpp
index fd42df8..c4fafe9 100644
--- a/cpp_impl/src/TSLQueue.hpp
+++ b/cpp_impl/src/TSLQueue.hpp
@@ -222,6 +222,15 @@ void TSLQueue<T>::clear() {
     iterWrapperCount = std::make_shared<void>();
 }
 
+template <typename T>
+bool TSLQueue<T>::empty() {
+    while(iterWrapperCount.use_count() > 1) {
+        std::this_thread::sleep_for(std::chrono::milliseconds(10));
+    }
+    std::lock_guard lock(mutex);
+    return container.empty();
+}
+
 template <typename T>
 template <bool isConst, bool isRev>
 TSLQueue<T>::TSLQIterWrapper<isConst, isRev>::TSLQIterWrapper(
-- 
2.49.0