Fixed a bug where the storage service might crash (vesoft-inc#583)

Fixed possible thread competition for checking listener_ .
monadbobo · Jul 19, 2019 · 73a8243 · 73a8243
1 parent 361ac99
commit 73a8243
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/meta/client/MetaClient.h b/src/meta/client/MetaClient.h
@@ -69,8 +69,8 @@ class MetaClient {
  void init();
 
  void registerListener(MetaChangedListener* listener) {
- CHECK(listener_ == nullptr);
  folly::RWSpinLock::WriteHolder holder(listenerLock_);
+ CHECK(listener_ == nullptr);
  listener_ = listener;
  }