BewareMyPower commented on code in PR #71:
URL: https://github.com/apache/pulsar-client-cpp/pull/71#discussion_r1013547938


##########
lib/ConsumerImpl.cc:
##########
@@ -319,6 +320,45 @@ void ConsumerImpl::unsubscribeAsync(ResultCallback 
originalCallback) {
     }
 }
 
+void ConsumerImpl::triggerCheckExpiredChunkedTimer() {
+    checkExpiredChunkedTimer_->expires_from_now(
+        
boost::posix_time::milliseconds(expireTimeOfIncompleteChunkedMessageMs_));
+    std::weak_ptr<ConsumerImplBase> weakSelf{shared_from_this()};
+    checkExpiredChunkedTimer_->async_wait([this, weakSelf](const 
boost::system::error_code& ec) -> void {
+        auto self = weakSelf.lock();
+        if (!self) {
+            return;
+        }
+        if (ec) {
+            LOG_DEBUG(getName() << " Check expired chunked messages was failed 
or cancelled, code[" << ec
+                                << "].");
+            return;
+        }
+        Lock lock(chunkProcessMutex_);
+        long currentTimeMs = TimeUtils::currentTimeMillis();
+        chunkedMessageCache_.removeOldestValuesIf(
+            [this, &currentTimeMs](const std::string& uuid, const 
ChunkedMessageCtx& ctx) -> bool {
+                bool expired =
+                    currentTimeMs > ctx.getReceivedTimeMs() + 
expireTimeOfIncompleteChunkedMessageMs_;
+                if (!expired) {
+                    return false;
+                }
+                for (const MessageId& msgId : ctx.getChunkedMessageIds()) {
+                    LOG_INFO("Removing expired chunk messages: uuid: " << uuid 
<< ", messageId: " << msgId);
+                    doAcknowledgeIndividual(msgId, [uuid, msgId](Result 
result) {

Review Comment:
   Why did you capture `uuid` and `msgId` here?



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