refactor(rebalance): use smart_ptr to manage pull request

include/DefaultMQPullConsumer.h

@@ -54,7 +54,7 @@ class ROCKETMQCLIENT_API DefaultMQPullConsumer : public MQConsumer {
   virtual void getSubscriptions(std::vector<SubscriptionData>&);
   virtual void updateConsumeOffset(const MQMessageQueue& mq, int64 offset);
   virtual void removeConsumeOffset(const MQMessageQueue& mq);
-  virtual void producePullMsgTask(PullRequest*);
+  virtual bool producePullMsgTask(boost::weak_ptr<PullRequest> pullRequest);
   virtual Rebalance* getRebalance() const;
   //<!end MQConsumer;
 
@@ -67,7 +67,7 @@ class ROCKETMQCLIENT_API DefaultMQPullConsumer : public MQConsumer {
    * @param subExpression
    *            set filter expression for pulled msg, broker will filter msg actively
    *            Now only OR operation is supported, eg: "tag1 || tag2 || tag3"
-   *            if subExpression is setted to "null" or "*"��all msg will be subscribed
+   *            if subExpression is setted to "null" or "*", all msg will be subscribed
    * @param offset
    *            specify the started pull offset
    * @param maxNums
@@ -90,7 +90,7 @@ class ROCKETMQCLIENT_API DefaultMQPullConsumer : public MQConsumer {
    * @param subExpression
    *            set filter expression for pulled msg, broker will filter msg actively
    *            Now only OR operation is supported, eg: "tag1 || tag2 || tag3"
-   *            if subExpression is setted to "null" or "*"��all msg will be subscribed
+   *            if subExpression is setted to "null" or "*", all msg will be subscribed
    * @param offset
    *            specify the started pull offset
    * @param maxNums
@@ -107,20 +107,13 @@ class ROCKETMQCLIENT_API DefaultMQPullConsumer : public MQConsumer {
 
   virtual ConsumerRunningInfo* getConsumerRunningInfo() { return NULL; }
   /**
-   * ��ȡ���ѽ��ȣ�����-1��ʾ����
    *
    * @param mq
    * @param fromStore
    * @return
    */
   int64 fetchConsumeOffset(const MQMessageQueue& mq, bool fromStore);
-  /**
-   * ����topic��ȡMessageQueue���Ծ��ⷽʽ�����ڶ����Ա֮�����
-   *
-   * @param topic
-   *            ��ϢTopic
-   * @return ���ض��м���
-   */
+
   void fetchMessageQueuesInBalance(const std::string& topic, std::vector<MQMessageQueue> mqs);
 
   // temp persist consumer offset interface, only valid with

include/DefaultMQPushConsumer.h

@@ -86,13 +86,17 @@ class ROCKETMQCLIENT_API DefaultMQPushConsumer : public MQConsumer {
   virtual Rebalance* getRebalance() const;
   ConsumeMsgService* getConsumerMsgService() const;
 
-  virtual void producePullMsgTask(PullRequest*);
-  void triggerNextPullRequest(boost::asio::deadline_timer* t, PullRequest* request);
+  virtual bool producePullMsgTask(boost::weak_ptr<PullRequest>);
+  virtual bool producePullMsgTaskLater(boost::weak_ptr<PullRequest>, int millis);
+  static void static_triggerNextPullRequest(void* context,
+                                            boost::asio::deadline_timer* t,
+                                            boost::weak_ptr<PullRequest>);
+  void triggerNextPullRequest(boost::asio::deadline_timer* t, boost::weak_ptr<PullRequest>);
   void runPullMsgQueue(TaskQueue* pTaskQueue);
-  void pullMessage(PullRequest* pullrequest);       // sync pullMsg
-  void pullMessageAsync(PullRequest* pullrequest);  // async pullMsg
+  void pullMessage(boost::weak_ptr<PullRequest> pullrequest);       // sync pullMsg
+  void pullMessageAsync(boost::weak_ptr<PullRequest> pullrequest);  // async pullMsg
   void setAsyncPull(bool asyncFlag);
-  AsyncPullCallback* getAsyncPullCallBack(PullRequest* request, MQMessageQueue msgQueue);
+  AsyncPullCallback* getAsyncPullCallBack(boost::weak_ptr<PullRequest>, MQMessageQueue msgQueue);
   void shutdownAsyncPullCallBack();
 
   /*

include/MQConsumer.h

@@ -43,7 +43,7 @@ class ROCKETMQCLIENT_API MQConsumer : public MQClient {
   virtual ConsumeType getConsumeType() = 0;
   virtual ConsumeFromWhere getConsumeFromWhere() = 0;
   virtual void getSubscriptions(std::vector<SubscriptionData>&) = 0;
-  virtual void producePullMsgTask(PullRequest*) = 0;
+  virtual bool producePullMsgTask(boost::weak_ptr<PullRequest>) = 0;
   virtual Rebalance* getRebalance() const = 0;
   virtual PullResult pull(const MQMessageQueue& mq, const std::string& subExpression, int64 offset, int maxNums) = 0;
   virtual void pull(const MQMessageQueue& mq,

src/MQClientFactory.cpp

@@ -1040,10 +1040,12 @@ void MQClientFactory::resetOffset(const string& group,
 
     for (; it != offsetTable.end(); ++it) {
       MQMessageQueue mq = it->first;
-      PullRequest* pullreq = pConsumer->getRebalance()->getPullRequest(mq);
+      boost::weak_ptr<PullRequest> pullRequest = pConsumer->getRebalance()->getPullRequest(mq);
+      boost::shared_ptr<PullRequest> pullreq = pullRequest.lock();
+      // PullRequest* pullreq = pConsumer->getRebalance()->getPullRequest(mq);
       if (pullreq) {
-        pullreq->setDroped(true);
-        LOG_INFO("resetOffset setDroped for mq:%s", mq.toString().data());
+        pullreq->setDropped(true);
+        LOG_INFO("resetOffset setDropped for mq:%s", mq.toString().data());
         pullreq->clearAllMsgs();
         pullreq->updateQueueMaxOffset(it->second);
       } else {

src/consumer/AllocateMQStrategy.h

@@ -92,5 +92,5 @@ class AllocateMQAveragely : public AllocateMQStrategy {
 };
 
 //<!***************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq
 #endif

src/consumer/ConsumeMessageConcurrentlyService.cpp

@@ -60,19 +60,35 @@ MessageListenerType ConsumeMessageConcurrentlyService::getConsumeMsgSerivceListe
   return m_pMessageListener->getMessageListenerType();
 }
 
-void ConsumeMessageConcurrentlyService::submitConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs) {
+void ConsumeMessageConcurrentlyService::submitConsumeRequest(boost::weak_ptr<PullRequest> pullRequest,
+                                                             vector<MQMessageExt>& msgs) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
+  if (request->isDropped()) {
+    LOG_INFO("Pull request for %s is dropped, which will be released in next re-balance.",
+             request->m_messageQueue.toString().c_str());
+    return;
+  }
   m_ioService.post(boost::bind(&ConsumeMessageConcurrentlyService::ConsumeRequest, this, request, msgs));
 }
 
-void ConsumeMessageConcurrentlyService::ConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs) {
-  if (!request || request->isDroped()) {
-    LOG_WARN("the pull result is NULL or Had been dropped");
+void ConsumeMessageConcurrentlyService::ConsumeRequest(boost::weak_ptr<PullRequest> pullRequest,
+                                                       vector<MQMessageExt>& msgs) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
+  if (!request || request->isDropped()) {
+    LOG_WARN("the pull request had been dropped");
     request->clearAllMsgs();  // add clear operation to avoid bad state when
                               // dropped pullRequest returns normal
     return;
   }
 
-  //<!��ȡ����;
   if (msgs.empty()) {
     LOG_WARN("the msg of pull result is NULL,its mq:%s", (request->m_messageQueue).toString().c_str());
     return;
@@ -123,12 +139,11 @@ void ConsumeMessageConcurrentlyService::ConsumeRequest(PullRequest* request, vec
 
   // update offset
   int64 offset = request->removeMessage(msgs);
-  // LOG_DEBUG("update offset:%lld of mq: %s",
-  // offset,(request->m_messageQueue).toString().c_str());
   if (offset >= 0) {
     m_pConsumer->updateConsumeOffset(request->m_messageQueue, offset);
   } else {
-    LOG_WARN("Note: accumulation consume occurs on mq:%s", (request->m_messageQueue).toString().c_str());
+    LOG_WARN("Note: Get local offset for mq:%s failed, may be it is updated before. skip..",
+             (request->m_messageQueue).toString().c_str());
   }
 }
 
@@ -144,4 +159,4 @@ void ConsumeMessageConcurrentlyService::resetRetryTopic(vector<MQMessageExt>& ms
 }
 
 //<!***************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq

src/consumer/ConsumeMessageOrderlyService.cpp

@@ -103,14 +103,25 @@ MessageListenerType ConsumeMessageOrderlyService::getConsumeMsgSerivceListenerTy
   return m_pMessageListener->getMessageListenerType();
 }
 
-void ConsumeMessageOrderlyService::submitConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs) {
+void ConsumeMessageOrderlyService::submitConsumeRequest(boost::weak_ptr<PullRequest> pullRequest,
+                                                        vector<MQMessageExt>& msgs) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
   m_ioService.post(boost::bind(&ConsumeMessageOrderlyService::ConsumeRequest, this, request));
 }
 
 void ConsumeMessageOrderlyService::static_submitConsumeRequestLater(void* context,
-                                                                    PullRequest* request,
+                                                                    boost::weak_ptr<PullRequest> pullRequest,
                                                                     bool tryLockMQ,
                                                                     boost::asio::deadline_timer* t) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
   LOG_INFO("submit consumeRequest later for mq:%s", request->m_messageQueue.toString().c_str());
   vector<MQMessageExt> msgs;
   ConsumeMessageOrderlyService* orderlyService = (ConsumeMessageOrderlyService*)context;
@@ -122,7 +133,12 @@ void ConsumeMessageOrderlyService::static_submitConsumeRequestLater(void* contex
     deleteAndZero(t);
 }
 
-void ConsumeMessageOrderlyService::ConsumeRequest(PullRequest* request) {
+void ConsumeMessageOrderlyService::ConsumeRequest(boost::weak_ptr<PullRequest> pullRequest) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
   bool bGetMutex = false;
   boost::unique_lock<boost::timed_mutex> lock(request->getPullRequestCriticalSection(), boost::try_to_lock);
   if (!lock.owns_lock()) {
@@ -140,7 +156,7 @@ void ConsumeMessageOrderlyService::ConsumeRequest(PullRequest* request) {
     // request->m_messageQueue.toString().c_str());
     return;
   }
-  if (!request || request->isDroped()) {
+  if (!request || request->isDropped()) {
     LOG_WARN("the pull result is NULL or Had been dropped");
     request->clearAllMsgs();  // add clear operation to avoid bad state when
                               // dropped pullRequest returns normal
@@ -189,11 +205,16 @@ void ConsumeMessageOrderlyService::ConsumeRequest(PullRequest* request) {
     }
   }
 }
-void ConsumeMessageOrderlyService::tryLockLaterAndReconsume(PullRequest* request, bool tryLockMQ) {
+void ConsumeMessageOrderlyService::tryLockLaterAndReconsume(boost::weak_ptr<PullRequest> pullRequest, bool tryLockMQ) {
+  boost::shared_ptr<PullRequest> request = pullRequest.lock();
+  if (!request) {
+    LOG_WARN("Pull request has been released");
+    return;
+  }
   int retryTimer = tryLockMQ ? 500 : 100;
   boost::asio::deadline_timer* t =
       new boost::asio::deadline_timer(m_async_ioService, boost::posix_time::milliseconds(retryTimer));
   t->async_wait(
       boost::bind(&(ConsumeMessageOrderlyService::static_submitConsumeRequestLater), this, request, tryLockMQ, t));
 }
-}
+}  // namespace rocketmq

src/consumer/ConsumeMsgService.h

@@ -38,7 +38,7 @@ class ConsumeMsgService {
   virtual void start() {}
   virtual void shutdown() {}
   virtual void stopThreadPool() {}
-  virtual void submitConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs) {}
+  virtual void submitConsumeRequest(boost::weak_ptr<PullRequest> request, vector<MQMessageExt>& msgs) {}
   virtual MessageListenerType getConsumeMsgSerivceListenerType() { return messageListenerDefaultly; }
 };
 
@@ -48,11 +48,11 @@ class ConsumeMessageConcurrentlyService : public ConsumeMsgService {
   virtual ~ConsumeMessageConcurrentlyService();
   virtual void start();
   virtual void shutdown();
-  virtual void submitConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs);
+  virtual void submitConsumeRequest(boost::weak_ptr<PullRequest> request, vector<MQMessageExt>& msgs);
   virtual MessageListenerType getConsumeMsgSerivceListenerType();
   virtual void stopThreadPool();
 
-  void ConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs);
+  void ConsumeRequest(boost::weak_ptr<PullRequest> request, vector<MQMessageExt>& msgs);
 
  private:
   void resetRetryTopic(vector<MQMessageExt>& msgs);
@@ -71,17 +71,17 @@ class ConsumeMessageOrderlyService : public ConsumeMsgService {
   virtual ~ConsumeMessageOrderlyService();
   virtual void start();
   virtual void shutdown();
-  virtual void submitConsumeRequest(PullRequest* request, vector<MQMessageExt>& msgs);
+  virtual void submitConsumeRequest(boost::weak_ptr<PullRequest> request, vector<MQMessageExt>& msgs);
   virtual void stopThreadPool();
   virtual MessageListenerType getConsumeMsgSerivceListenerType();
 
   void boost_asio_work();
-  void tryLockLaterAndReconsume(PullRequest* request, bool tryLockMQ);
+  void tryLockLaterAndReconsume(boost::weak_ptr<PullRequest> request, bool tryLockMQ);
   static void static_submitConsumeRequestLater(void* context,
-                                               PullRequest* request,
+                                               boost::weak_ptr<PullRequest> request,
                                                bool tryLockMQ,
                                                boost::asio::deadline_timer* t);
-  void ConsumeRequest(PullRequest* request);
+  void ConsumeRequest(boost::weak_ptr<PullRequest> request);
   void lockMQPeriodically(boost::system::error_code& ec, boost::asio::deadline_timer* t);
   void unlockAllMQ();
   bool lockOneMQ(const MQMessageQueue& mq);
@@ -99,6 +99,6 @@ class ConsumeMessageOrderlyService : public ConsumeMsgService {
 };
 
 //<!***************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq
 
 #endif  //<! _CONSUMEMESSAGESERVICE_H_

src/consumer/DefaultMQPullConsumer.cpp

@@ -369,11 +369,13 @@ void DefaultMQPullConsumer::getSubscriptions(vector<SubscriptionData>& result) {
   }
 }
 
-void DefaultMQPullConsumer::producePullMsgTask(PullRequest*) {}
+bool DefaultMQPullConsumer::producePullMsgTask(boost::weak_ptr<PullRequest> pullRequest) {
+  return true;
+}
 
 Rebalance* DefaultMQPullConsumer::getRebalance() const {
   return NULL;
 }
 
 //<!************************************************************************
-}  //<!end namespace;
+}  // namespace rocketmq