From fcff83e0830d2ecf394767a165bc54737c638bf6 Mon Sep 17 00:00:00 2001
From: wxyu <xy.wang@zilliz.com>
Date: Sat, 12 Oct 2019 17:10:19 +0800
Subject: [PATCH] MS-641 Segment fault(signal 11) in PickToLoad

Former-commit-id: 78149b38f89b1e0e6a9a35dac224c119f25467d2
---
 cpp/src/scheduler/TaskTable.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cpp/src/scheduler/TaskTable.h b/cpp/src/scheduler/TaskTable.h
index 8f367f9c1a..e638abe617 100644
--- a/cpp/src/scheduler/TaskTable.h
+++ b/cpp/src/scheduler/TaskTable.h
@@ -149,6 +149,11 @@ class TaskTable {
     }
 
  public:
+    TaskTableItemPtr& operator[](uint64_t index) {
+        std::lock_guard<std::mutex> lock(mutex_);
+        return table_[index];
+    }
+
     std::deque<TaskTableItemPtr>::iterator
     begin() {
         return table_.begin();