ifplusor commented on issue #322:
URL:
https://github.com/apache/rocketmq-client-cpp/issues/322#issuecomment-663332994
I think u are right but use getCacheMsgCount() to check cache if empty is
better, and getCacheMsgCount need to change to below:
```
int PullRequest::getCacheMsgCount() {
boost::lock_guard<boost::mutex> lock(m_pullRequestLock);
return m_msgTreeMap.size() + m_msgTreeMapTemp.size();
}
```
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