Matt-Esch commented on a change in pull request #200:
URL: https://github.com/apache/pulsar-client-node/pull/200#discussion_r831660197
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File path: src/Consumer.cc
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@@ -79,144 +81,131 @@ void MessageListener(pulsar_consumer_t *cConsumer,
pulsar_message_t *cMessage, v
listenerCallback->callback.Release();
}
-void Consumer::SetCConsumer(std::shared_ptr<CConsumerWrapper> cConsumer) {
this->wrapper = cConsumer; }
-void Consumer::SetListenerCallback(ListenerCallback *listener) {
+void Consumer::SetCConsumer(std::shared_ptr<pulsar_consumer_t> cConsumer) {
this->cConsumer = cConsumer; }
+void Consumer::SetListenerCallback(MessageListenerCallback *listener) {
if (listener) {
+ // Pass consumer as argument
+ listener->consumer = this;
+ }
+
+ if (this->listener == nullptr) {
// Maintain reference to consumer, so it won't get garbage collected
// since, when we have a listener, we don't have to maintain reference to
consumer (in js code)
this->Ref();
Review comment:
The reference counter should not be incremented if the message listener
is not set. This only gets called in the constructor of the Consumer if there
is a listener. All this change does is ensure that if someone were to call this
in future from somewhere else the references would remain balanced. I will add
a check to make sure that the listener being set isn't itself nullptr. The
change just makes the code more resilient rather than changing any actual
behaviour.
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