rest_bench: drain the work queue to fix a crash

  Fixes: #3896
  Signed-off-by: huangjun <hjwsm1989@gmail.com>
(cherry picked from commit f3d34d8ff921dbd2ff21f6b72af7c73bb9c6940e)

diff --git a/src/tools/rest_bench.cc b/src/tools/rest_bench.cc
index 50340d94f921d99dd5a4e684f418f215b1c94e4e..46a72c5b35c333f1b217d8c16c59d4b1d2bd854d 100644 (file)
--- a/src/tools/rest_bench.cc
+++ b/src/tools/rest_bench.cc
@@ -281,6 +281,11 @@ public:
     list_bucket_handler.listBucketCallback = list_bucket_callback;
 
   }
+  ~RESTDispatcher()
+  {
+    req_wq.drain();
+    m_tp.stop();
+  } 
   void process_context(req_context *ctx);
   void get_obj(req_context *ctx);
   void put_obj(req_context *ctx);