BewareMyPower commented on code in PR #228:
URL: https://github.com/apache/pulsar-client-cpp/pull/228#discussion_r1147190108
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lib/ConsumerImpl.cc:
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@@ -649,10 +649,11 @@ void ConsumerImpl::executeNotifyCallback(Message& msg) {
void ConsumerImpl::notifyBatchPendingReceivedCallback(const
BatchReceiveCallback& callback) {
auto messages =
std::make_shared<MessagesImpl>(batchReceivePolicy_.getMaxNumMessages(),
batchReceivePolicy_.getMaxNumBytes());
- Message peekMsg;
- while (incomingMessages_.pop(peekMsg, std::chrono::milliseconds(0)) &&
messages->canAdd(peekMsg)) {
- messageProcessed(peekMsg);
- Message interceptMsg =
interceptors_->beforeConsume(Consumer(shared_from_this()), peekMsg);
+ Message msg;
+ while (incomingMessages_.peek(msg) && messages->canAdd(msg)) {
+ incomingMessages_.pop(msg);
Review Comment:
Correctness is more important than performance. The race condition problem
is hard to analysis if it happened. We don't have to copy everything from the
Java client, including the bugs.
BTW, the `peek` and `pop` methods in C++ client already acquire the lock.
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