From def06be564fbd8635a425099baa976372b071b3c Mon Sep 17 00:00:00 2001
From: David Hall <david.hall@mariadb.com>
Date: Mon, 20 Feb 2017 11:43:46 -0600
Subject: [PATCH] MCOL-513 Use vector ref for join to prevent vector copy.

---
 utils/threadpool/threadpool.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/threadpool/threadpool.h b/utils/threadpool/threadpool.h
index a000f060b..f11bb4b2b 100644
--- a/utils/threadpool/threadpool.h
+++ b/utils/threadpool/threadpool.h
@@ -145,7 +145,7 @@ public:
 
     /** @brief Wait for a specific thread
       */
-    EXPORT void join(std::vector<uint64_t> thrHandle);
+    EXPORT void join(std::vector<uint64_t>& thrHandle);
 
     /** @brief for use in debugging
       */