Add first version

[ric-plt/sdl.git] / include / private / redis / hiredisclusterepolladapter.hpp

diff --git a/include/private/redis/hiredisclusterepolladapter.hpp b/include/private/redis/hiredisclusterepolladapter.hpp
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+/*
+   Copyright (c) 2018-2019 Nokia.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef SHAREDDATALAYER_REDIS_HIREDISCLUSTEREPOLLADAPTER_HPP_
+#define SHAREDDATALAYER_REDIS_HIREDISCLUSTEREPOLLADAPTER_HPP_
+
+#include <map>
+#include <memory>
+
+extern "C"
+{
+    struct redisClusterAsyncContext;
+    struct redisAsyncContext;
+}
+
+namespace shareddatalayer
+{
+    class Engine;
+
+    namespace redis
+    {
+        class HiredisClusterSystem;
+
+        class HiredisClusterEpollAdapter
+        {
+        public:
+            class Node;
+
+            explicit HiredisClusterEpollAdapter(Engine& engine);
+
+            HiredisClusterEpollAdapter(Engine& engine, HiredisClusterSystem& hiredisClusterSystem);
+
+            virtual ~HiredisClusterEpollAdapter() = default;
+
+            virtual void setup(redisClusterAsyncContext* acc);
+
+            virtual void attach(redisAsyncContext* ac);
+
+            virtual void detach(const redisAsyncContext* ac);
+
+            HiredisClusterEpollAdapter(const HiredisClusterEpollAdapter&) = delete;
+            HiredisClusterEpollAdapter(HiredisClusterEpollAdapter&&) = delete;
+            HiredisClusterEpollAdapter& operator = (const HiredisClusterEpollAdapter&) = delete;
+            HiredisClusterEpollAdapter& operator = (HiredisClusterEpollAdapter&&) = delete;
+
+        private:
+            Engine& engine;
+            HiredisClusterSystem& hiredisClusterSystem;
+            std::map<int, std::unique_ptr<Node>> nodes;
+        };
+
+        class HiredisClusterEpollAdapter::Node
+        {
+        public:
+            Node(Engine& engine,
+                 redisAsyncContext* ac,
+                 HiredisClusterSystem& hiredisClusterSystem);
+
+            ~Node();
+
+            void addRead();
+
+            void addWrite();
+
+            void delRead();
+
+            void delWrite();
+
+            void cleanup();
+
+            Node(const Node&) = delete;
+            Node(Node&&) = delete;
+            Node& operator = (const Node&) = delete;
+            Node& operator = (Node&&) = delete;
+
+        private:
+            Engine& engine;
+            HiredisClusterSystem& hiredisClusterSystem;
+            redisAsyncContext* ac;
+            unsigned int eventState;
+            bool reading;
+            bool writing;
+            bool isMonitoring;
+
+            void eventHandler(unsigned int events);
+        };
+    }
+}
+
+#endif