BewareMyPower commented on code in PR #54:
URL: https://github.com/apache/pulsar-client-cpp/pull/54#discussion_r1000141936


##########
lib/ConsumerImpl.cc:
##########
@@ -990,20 +1002,25 @@ void ConsumerImpl::negativeAcknowledge(const MessageId& 
messageId) {
 
 void ConsumerImpl::disconnectConsumer() {
     LOG_INFO("Broker notification of Closed consumer: " << consumerId_);
-    Lock lock(mutex_);
-    connection_.reset();
-    lock.unlock();
+    resetCnx();
     scheduleReconnection(get_shared_this_ptr());
 }
 
-void ConsumerImpl::closeAsync(ResultCallback callback) {
-    // Keep a reference to ensure object is kept alive
-    ConsumerImplPtr ptr = get_shared_this_ptr();
+void ConsumerImpl::closeAsync(ResultCallback originalCallback) {
+    auto callback = [this, originalCallback](Result result) {
+        shutdown();

Review Comment:
   It's the main cause of #55 because the previous code forgot to remove the 
producer before `connection_.reset()`. When I debugged, I found `cnx` is always 
empty in the following code block.
   
   
https://github.com/apache/pulsar-client-cpp/blob/7f7653b694996f38cf422d8bef24aa1fdfb21c59/lib/ProducerImpl.cc#L720-L723
   
   I didn't look deeper, but it must be caused by the modification of 
`connection_` field somewhere else.



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