[perf] optimize message, with only one copy

ChunelFeng · ChunelFeng · commit d2bb6a3392e3 · 2023-09-22T20:25:37.000+08:00
diff --git a/README.md b/README.md
@@ -325,7 +325,7 @@ int main() {
 * 提供`coordinator`(协调)功能
 
 [2023.09.16 - v2.5.2 - Chunel]
-* 优化`message`(消息)功能，可以设定写入阻塞时的处理方式
+* 优化`message`(消息)功能，可以设定写入阻塞时的处理方式，减少内存copy次数
 * 添加`example`相关内容，针对不同行业，提供一些简单实现
 
 </details>
diff --git a/src/GraphCtrl/GraphMessage/GMessage.h b/src/GraphCtrl/GraphMessage/GMessage.h
@@ -44,6 +44,19 @@ class GMessage : public GMessageObject {
         queue_.push(value, strategy);
     }
 
+    /**
+     * 写入智能指针类型的参数
+     * @tparam TImpl
+     * @param value
+     * @param strategy
+     * @return
+     */
+    template<class TImpl,
+            c_enable_if_t<std::is_base_of<T, TImpl>::value, int> = 0>
+    CVoid send(std::unique_ptr<TImpl>& value, GMessagePushStrategy strategy) {
+        queue_.push(value, strategy);
+    }
+
     /**
      * 获取参数
      * @param value
diff --git a/src/GraphCtrl/GraphMessage/GMessageManager.h b/src/GraphCtrl/GraphMessage/GMessageManager.h
@@ -155,6 +155,33 @@ class GMessageManager : public GMessageObject,
         CGRAPH_FUNCTION_END
     }
 
+    /**
+     * 根据传入的topic，输入智能指针类型的信息
+     * @tparam TImpl
+     * @param topic
+     * @param value
+     * @param strategy
+     * @return
+     */
+    template<typename TImpl,
+            c_enable_if_t<std::is_base_of<T, TImpl>::value, int> = 0>
+    CStatus sendTopicValue(const std::string& topic,
+                           std::unique_ptr<TImpl>& value,
+                           GMessagePushStrategy strategy) {
+        CGRAPH_FUNCTION_BEGIN
+        auto innerTopic = SEND_RECV_PREFIX + topic;
+        auto result = send_recv_message_map_.find(innerTopic);
+        if (result == send_recv_message_map_.end()) {
+            CGRAPH_RETURN_ERROR_STATUS("no find [" + topic + "] topic");
+        }
+
+        auto message = static_cast<GMessagePtr<T> >(result->second);
+        CGRAPH_ASSERT_NOT_NULL(message);
+
+        message->send(value, strategy);
+        CGRAPH_FUNCTION_END
+    }
+
     /**
      * 绑定对应的topic信息，并且获取 conn_id 信息
      * @tparam TImpl
@@ -165,10 +192,10 @@ class GMessageManager : public GMessageObject,
     template<typename TImpl,
             c_enable_if_t<std::is_base_of<T, TImpl>::value, int> = 0>
     CIndex bindTopic(const std::string& topic, CUint size) {
-        CGRAPH_LOCK_GUARD lock(bind_mutex_);
         auto innerTopic = PUB_SUB_PREFIX + topic;
         auto message = UAllocator::safeMallocTemplateCObject<GMessage<TImpl>, CUint>(size);
 
+        CGRAPH_LOCK_GUARD lock(bind_mutex_);
         CIndex connId = (++cur_conn_id_);
         auto result = pub_sub_message_map_.find(innerTopic);
         if (result != pub_sub_message_map_.end()) {
diff --git a/src/UtilsCtrl/ThreadPool/Queue/UAtomicRingBufferQueue.h b/src/UtilsCtrl/ThreadPool/Queue/UAtomicRingBufferQueue.h
@@ -81,6 +81,36 @@ class UAtomicRingBufferQueue : public UQueueObject {
         pop_cv_.notify_one();
     }
 
+    /**
+     * 写入智能指针类型的信息
+     * @tparam TImpl
+     * @param value
+     * @param strategy
+     * @return
+     */
+    template<class TImpl = T>
+    CVoid push(std::unique_ptr<TImpl>& value, URingBufferPushStrategy strategy) {
+        {
+            CGRAPH_UNIQUE_LOCK lk(mutex_);
+            if (isFull()) {
+                switch (strategy) {
+                    case URingBufferPushStrategy::WAIT:
+                        push_cv_.wait(lk, [this] { return !isFull(); });
+                        break;
+                    case URingBufferPushStrategy::REPLACE:
+                        head_ = (head_ + 1) % capacity_;
+                        break;
+                    case URingBufferPushStrategy::DROP:
+                        return;    // 直接返回，不写入即可
+                }
+            }
+
+            ring_buffer_queue_[tail_] = std::move(value);
+            tail_ = (tail_ + 1) % capacity_;
+        }
+        pop_cv_.notify_one();
+    }
+
     /**
      * 等待弹出信息
      * @param value
diff --git a/tutorial/MyGNode/MyRecvMessageNode.h b/tutorial/MyGNode/MyRecvMessageNode.h
@@ -15,14 +15,14 @@
 class MyRecvMessageNode : public CGraph::GNode {
 public:
     CStatus run() override {
-        MyMessageParam mp;    // 接收一个消息
+        std::unique_ptr<MyMessageParam> mp = nullptr;    // 接收一个消息
         CStatus status = CGRAPH_RECV_MPARAM(MyMessageParam, "send-recv", mp);
         if (!status.isOK()) {
             CGraph::CGRAPH_ECHO("MySubMessageNode sub message error");
             return status;
         }
 
-        CGraph::CGRAPH_ECHO("num = [%d], info = [%s]", mp.num, mp.info.c_str());
+        CGraph::CGRAPH_ECHO("num = [%d], info = [%s]", mp->num, mp->info.c_str());
         return status;
     }
 };
diff --git a/tutorial/MyGNode/MySendMessageNode.h b/tutorial/MyGNode/MySendMessageNode.h
@@ -15,9 +15,15 @@
 class MySendMessageNode : public CGraph::GNode {
 public:
     CStatus run() override {
-        MyMessageParam mp;    // 创建一个消息，并且发送出去
-        mp.num = (num_++) * 10;
-        mp.info = "this is a test send info, num = " + std::to_string(mp.num);
+        /**
+         * 可以使用 MyMessageParam mp; 构建值的方式传递
+         * 推荐使用 unique_ptr 的方式，进行 send 和 recv
+         * 可以减少内存copy次数
+         */
+        std::unique_ptr<MyMessageParam> mp(new MyMessageParam());
+
+        mp->num = (num_++) * 10;
+        mp->info = "this is a test send info, num = " + std::to_string(mp->num);
         /**
          * 在v2.5.1版本，增加了 GMessagePushStrategy 策略，不兼容之前版本
          * 如果需要跟之前逻辑保持一致，直接设定 CGraph::GMessagePushStrategy::WAIT 即可
diff --git a/tutorial/MyParams/MyMessageParam.h b/tutorial/MyParams/MyMessageParam.h
@@ -15,10 +15,7 @@ struct MyMessageParam : public CGraph::GMessageParam {
     int num = 0;
     std::string info;
 
-    explicit MyMessageParam() {
-        num = 0;
-        info = "";
-    }
+    explicit MyMessageParam() = default;
 
     /**
      * 注意：
