shibd commented on code in PR #71:
URL: https://github.com/apache/pulsar-client-cpp/pull/71#discussion_r1006850483


##########
lib/ConsumerImpl.cc:
##########
@@ -319,6 +320,27 @@ void ConsumerImpl::unsubscribeAsync(ResultCallback 
originalCallback) {
     }
 }
 
+void ConsumerImpl::triggerCheckExpiredChunkedTimer() {
+    checkExpiredChunkedTimer_ = executor_->createDeadlineTimer();

Review Comment:
   If `checkExpiredChunkedTimer_`  already existed, not need to recreate it.



##########
lib/ConsumerImpl.cc:
##########
@@ -319,6 +320,27 @@ void ConsumerImpl::unsubscribeAsync(ResultCallback 
originalCallback) {
     }
 }
 
+void ConsumerImpl::triggerCheckExpiredChunkedTimer() {
+    checkExpiredChunkedTimer_ = executor_->createDeadlineTimer();
+    checkExpiredChunkedTimer_->expires_from_now(
+        
boost::posix_time::milliseconds(expireTimeOfIncompleteChunkedMessageMs_));
+    checkExpiredChunkedTimer_->async_wait([this](const 
boost::system::error_code& ec) -> void {
+        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 {

Review Comment:
   Just capture `expireTimeOfIncompleteChunkedMessageMs_ ` on here.



##########
lib/ConsumerImpl.h:
##########
@@ -33,8 +33,11 @@
 #include "NegativeAcksTracker.h"
 #include "Synchronized.h"
 #include "TestUtil.h"
+#include "TimeUtils.h"
 #include "UnboundedBlockingQueue.h"
 
+using namespace pulsar;

Review Comment:
   There is no need to declare using pulsar namespace here because the class is 
already in this namespace



##########
lib/ConsumerImpl.cc:
##########
@@ -319,6 +320,27 @@ void ConsumerImpl::unsubscribeAsync(ResultCallback 
originalCallback) {
     }
 }
 
+void ConsumerImpl::triggerCheckExpiredChunkedTimer() {
+    checkExpiredChunkedTimer_ = executor_->createDeadlineTimer();
+    checkExpiredChunkedTimer_->expires_from_now(
+        
boost::posix_time::milliseconds(expireTimeOfIncompleteChunkedMessageMs_));
+    checkExpiredChunkedTimer_->async_wait([this](const 
boost::system::error_code& ec) -> void {

Review Comment:
   Need to capture `smart pointers` to prevent segmentation faults. Weak 
pointers are recommended to prevent circular references.
   https://github.com/apache/pulsar/pull/17481



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