column_family_test: EnvCounter::num_new_writable_file_ to be atomic

Summary: TSAN shows warning of data race of EnvCounter::num_new_writable_file_. Make it atomic. Closes #2331 Differential Revision: D5089215 Pulled By: siying fbshipit-source-id: 15f6dcfb770a3310cbb6337c22482c8b330daffc
facebook · May 18, 2017 · 217b866 · 217b866
1 parent 9f839a7
commit 217b866
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/db/column_family_test.cc b/db/column_family_test.cc
@@ -55,7 +55,7 @@ class EnvCounter : public EnvWrapper {
   }
 
  private:
-  int num_new_writable_file_;
+  std::atomic<int> num_new_writable_file_;
 };
 
 class ColumnFamilyTest : public testing::Test {