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+/*
+ * Copyright (c) 2018 TOYOTA MOTOR CORPORATION
+ *
+ * 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 TMCAGLWM_POLICY_MANAGER_HPP
+#define TMCAGLWM_POLICY_MANAGER_HPP
+
+#include <functional>
+#include <unordered_map>
+#include <vector>
+#include <queue>
+
+struct json_object;
+struct sd_event;
+struct sd_event_source;
+struct StmState;
+
+class PolicyManager
+{
+
+ public:
+ explicit PolicyManager();
+ ~PolicyManager() = default;
+
+ using Handler = std::function<void(json_object *)>;
+
+ typedef struct
+ {
+ Handler onStateTransitioned;
+ Handler onError;
+ } CallbackTable;
+
+ int initialize();
+ void registerCallback(CallbackTable callback_table);
+ int setInputEventData(json_object *json_in);
+ int executeStateTransition();
+ void undoState();
+
+ // Do not use these functions
+ int transitionState(sd_event_source *source, void *data);
+ int timerEvent(sd_event_source *source, uint64_t usec, void *data);
+
+ private:
+ // Disable copy and move
+ PolicyManager(PolicyManager const &) = delete;
+ PolicyManager &operator=(PolicyManager const &) = delete;
+ PolicyManager(PolicyManager &&) = delete;
+ PolicyManager &operator=(PolicyManager &&) = delete;
+
+ typedef struct EventInfo
+ {
+ int event;
+ std::string role;
+ uint64_t delay;
+ } EventInfo;
+
+ typedef struct AreaState
+ {
+ std::string name;
+ std::string category;
+ std::string role;
+ } AreaState;
+
+ typedef std::vector<AreaState> AreaList;
+ typedef struct LayoutState
+ {
+ std::string name;
+ std::map<std::string, int> category_num;
+ AreaList area_list;
+ } LayoutState;
+
+ typedef struct LayerState
+ {
+ std::string name;
+ LayoutState layout_state;
+ bool changed;
+ } LayerState;
+
+ // Convert map
+ std::unordered_map<std::string, int> eventname2no;
+ std::unordered_map<std::string, int> categoryname2no;
+ std::unordered_map<std::string, int> areaname2no;
+
+ std::unordered_map<std::string, std::string> role2category;
+ std::unordered_map<std::string, std::string> category2role;
+ std::unordered_map<std::string, std::string> role2defaultarea;
+
+ struct sd_event *event_loop;
+ std::queue<EventInfo> event_info_queue;
+ std::map<int, struct sd_event_source *> event_source_list;
+ std::map<int, std::string> req_role_list;
+
+ CallbackTable callback;
+
+ std::unordered_map<std::string, LayerState> prv_layers;
+ std::unordered_map<std::string, LayerState> crr_layers;
+
+ std::unordered_map<std::string, LayoutState> default_layouts;
+
+ std::map<std::string, std::vector<std::string>> role_history;
+
+ void initializeState();
+ void initializeLayerState();
+ void updateState(int event_data, StmState crr_state);
+ void updateLayerState(int event_data, StmState crr_state);
+ void createOutputInformation(StmState crr_state, json_object **json_out);
+ int setStateTransitionProcessToSystemd(int event, uint64_t delay_ms, std::string role);
+
+ void pushRoleHistory(std::string category, std::string role);
+ std::string popRoleHistory(std::string category);
+
+ int loadRoleDb();
+ int loadLayoutDb();
+
+ void dumpLayerState(std::unordered_map<std::string, LayerState> &layers);
+ void dumpRoleHistory();
+
+ void addStateToJson(const char *name, bool changed,
+ std::string state, json_object **json_out);
+ void addStateToJson(const char *layer_name, bool changed,
+ AreaList area_list, json_object **json_out);
+ const char *getStringFromJson(json_object *obj, const char *key);
+ int inputJsonFilie(const char *file, json_object **obj);
+
+ std::vector<std::string> parseString(std::string str, char delimiter);
+ std::string deleteSpace(std::string str);
+
+ static const char *kDefaultRoleDb;
+ static const char *kDefaultLayoutDb;
+};
+
+#endif // TMCAGLWM_POLICY_MANAGER_HPP