Add timer for restriction mode
[apps/agl-service-windowmanager.git] / src / policy_manager / policy_manager.cpp
index 47d9eac..55d79d9 100644 (file)
 #include <fstream>
 #include <sstream>
 #include <istream>
+#include <thread>
+#include <map>
+#include <systemd/sd-event.h>
 #include <json-c/json.h>
 #include "policy_manager.hpp"
-#if 0
+#include "hmi-debug.h"
+
+namespace stm {
 extern "C" {
 #include "dummy_stm.h"
 }
-#endif
-#include "hmi-debug.h"
+} // namespace stm
+
+
+namespace pm {
+
+struct sd_event* event_loop;
+struct sd_event_source* event_source;
 
+struct EventData {
+    PolicyManager *ctx;
+    int event;
+    PolicyManager::Handler handler;
+};
+
+std::map<int, EventData> event_data_list;
+
+}  // namespace pm
 
 PolicyManager::PolicyManager() :
   eventname2no_(),
@@ -34,8 +53,7 @@ PolicyManager::PolicyManager() :
   areaname2no_(),
   role2category_(),
   category2role_(),
-  role2defaultarea_(),
-  current_state_()
+  role2defaultarea_()
 {
     HMI_DEBUG("wm:pm", "Call");
 }
@@ -62,30 +80,335 @@ int PolicyManager::initialize() {
     }
 
     // Load role.db
-    ret = loadRoleDb();
+    ret = this->loadRoleDb();
     if (0 > ret) {
         HMI_ERROR("wm:pm", "Load role.db Error!!");
         return ret;
     }
 
-    // TODO:
     // Initialize StateTransitioner
-    // stmInitialize();
+    stm::stmInitialize();
+
+    // Initialize sd_event loop
+    ret = this->initializeSdEventLoop();
+    if (0 > ret) {
+        HMI_ERROR("wm:pm", "Failed to initializeSdEventLoop!!");
+        return ret;
+    }
 
     return ret;
 }
 
-int PolicyManager::checkPolicy(json_object* json_in, json_object** json_out) {
+int PolicyManager::initializeSdEventLoop() {
+    // Get default event loop object
+    int ret = sd_event_new(&(pm::event_loop));
+    if (0 > ret) {
+        HMI_ERROR("wm:pm", "Faild to sd_event_default: errno:%d", ret);
+        return -1;
+    }
+
+    // Create thread for sd_event and detach
+    std::thread sd_event_loop([this]() {
+        while (1) {
+            sd_event_run(pm::event_loop, 1000);
+        }
+    });
+    sd_event_loop.detach();
+
+    return 0;
+}
+
+static void addStateToJson(
+  const char* key, int is_changed, const char* state, json_object** json_out) {
+    if ((nullptr == key) || (nullptr == state) || (nullptr == json_out)) {
+        HMI_ERROR("wm:pm", "Argument is nullptr!!!");
+        return;
+    }
+
+    json_object* json_obj = json_object_new_object();
+    json_object_object_add(json_obj, "is_changed", json_object_new_boolean(is_changed));
+    if (is_changed) {
+        HMI_DEBUG("wm:pm", "%s: state changed (%s)", key, state);
+        json_object_object_add(json_obj, "state", json_object_new_string(state));
+    }
+    json_object_object_add(*json_out, key, json_obj);
+}
+
+static int checkPolicyEntry(PolicyManager* ctx, int event, int delay_ms,
+                            PolicyManager::Handler handler);
+static int checkPolicy(sd_event_source *source, uint64_t usec, void *data) {
+    HMI_DEBUG("wm:pm", "Call");
+
+    int event = *((int*)data);
+
+    pm::EventData event_data;
+    if (pm::event_data_list.find(event) != pm::event_data_list.end()) {
+        event_data = pm::event_data_list[event];
+
+        int event_no, category_no, area_no;
+        event_no    = event & STM_MSK_EVT_NO;
+        category_no = event & STM_MSK_CTG_NO;
+        area_no     = event & STM_MSK_ARA_NO;
+        HMI_DEBUG("wm:pm", ">>>>>>>>>> START CHECK POLICY");
+        HMI_DEBUG("wm:pm", ">>>>>>>>>> event:%s category:%s area:%s",
+                  stm::gStmEventName[event_no - 1],
+                  stm::gStmCategoryName[(category_no >> 8) - 1],
+                  stm::gStmAreaName[(area_no >> 16) - 1]);
+
+        // Transition state
+        stm::stm_state_t crr_state;
+        int ret = stm::stmTransitionState(event_data.event, &crr_state);
+        if (0 > ret) {
+            HMI_ERROR("wm:pm", "Error!!");
+            return -1;
+        }
+
+        HMI_DEBUG("wm", "parking brake state (is_changed:%d state:%d:%s)",
+                  crr_state.parking_brake.is_changed,
+                  crr_state.parking_brake.state,
+                  stm::gStmParkingBrakeStateNo2Name[crr_state.parking_brake.state]);
+        HMI_DEBUG("wm", "accelerator pedal state (is_changed:%d state:%d:%s)",
+                  crr_state.accel_pedal.is_changed,
+                  crr_state.accel_pedal.state,
+                  stm::gStmAccelPedalStateNo2Name[crr_state.accel_pedal.state]);
+        HMI_DEBUG("wm", "lightstatus brake state (is_changed:%d state:%d:%s)",
+                  crr_state.lightstatus_brake.is_changed,
+                  crr_state.lightstatus_brake.state,
+                  stm::gStmLightstatusBrakeStateNo2Name[crr_state.lightstatus_brake.state]);
+        HMI_DEBUG("wm", "car state (is_changed:%d state:%d:%s)",
+                  crr_state.car.is_changed,
+                  crr_state.car.state,
+                  stm::gStmCarStateNo2Name[crr_state.car.state]);
+        HMI_DEBUG("wm", "lamp state (is_changed:%d state:%d:%s)",
+                  crr_state.lamp.is_changed,
+                  crr_state.lamp.state,
+                  stm::gStmLampStateNo2Name[crr_state.lamp.state]);
+        HMI_DEBUG("wm", "restriction mode state (is_changed:%d state:%d:%s)",
+                  crr_state.restriction_mode.is_changed,
+                  crr_state.restriction_mode.state,
+                  stm::gStmRestrictionModeStateNo2Name[crr_state.restriction_mode.state]);
+        HMI_DEBUG("wm", "homescreen state (is_changed:%d state:%d:%s)",
+                  crr_state.layer.homescreen.is_changed,
+                  crr_state.layer.homescreen.state,
+                  stm::gStmLayoutNo2Name[crr_state.layer.homescreen.state]);
+        HMI_DEBUG("wm", "apps state (is_changed:%d state:%d:%s)",
+                  crr_state.layer.apps.is_changed,
+                  crr_state.layer.apps.state,
+                  stm::gStmLayoutNo2Name[crr_state.layer.apps.state]);
+        HMI_DEBUG("wm", "restriction state (is_changed:%d state:%d:%s)",
+                  crr_state.layer.restriction.is_changed,
+                  crr_state.layer.restriction.state,
+                  stm::gStmLayoutNo2Name[crr_state.layer.restriction.state]);
+        HMI_DEBUG("wm", "on_screen state (is_changed:%d state:%d:%s)",
+                  crr_state.layer.on_screen.is_changed,
+                  crr_state.layer.on_screen.state,
+                  stm::gStmLayoutNo2Name[crr_state.layer.on_screen.state]);
+
+        json_object* json_out = json_object_new_object();
+
+        // Create result
+        // {
+        //     "parking_brake": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("parking_brake",
+                       crr_state.parking_brake.is_changed,
+                       stm::gStmParkingBrakeStateNo2Name[crr_state.parking_brake.state],
+                       &json_out);
+
+        //     "accel_pedal": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("accel_pedal",
+                       crr_state.accel_pedal.is_changed,
+                       stm::gStmAccelPedalStateNo2Name[crr_state.accel_pedal.state],
+                       &json_out);
+
+        //     "lightstatus_brake": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("lightstatus_brake",
+                       crr_state.lightstatus_brake.is_changed,
+                       stm::gStmLightstatusBrakeStateNo2Name[crr_state.lightstatus_brake.state],
+                       &json_out);
+
+        //     "car": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("car",
+                       crr_state.car.is_changed,
+                       stm::gStmCarStateNo2Name[crr_state.car.state],
+                       &json_out);
+
+        //     "lamp": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("lamp",
+                       crr_state.lamp.is_changed,
+                       stm::gStmLampStateNo2Name[crr_state.lamp.state],
+                       &json_out);
+
+        //     "restriction_mode": {
+        //         "is_changed": <bool>,
+        //         "state": <const char*>
+        //     },
+        addStateToJson("restriction_mode",
+                       crr_state.restriction_mode.is_changed,
+                       stm::gStmRestrictionModeStateNo2Name[crr_state.restriction_mode.state],
+                       &json_out);
+
+        //     "layers": [
+        json_object* json_layer = json_object_new_array();
+        json_object* json_tmp;
+
+        //         {
+        //             "homescreen": {
+        //                 "is_changed": <bool>,
+        //                 "state": <const char*>
+        //             }
+        //         },
+        //     ]
+        // }
+        json_tmp = json_object_new_object();
+        addStateToJson("homescreen",
+                       crr_state.layer.homescreen.is_changed,
+                       stm::gStmLayoutNo2Name[crr_state.layer.homescreen.state],
+                       &json_tmp);
+        json_object_array_add(json_layer, json_tmp);
+
+        //         {
+        //             "apps": {
+        //                 "is_changed": <bool>,
+        //                 "state": <const char*>
+        //             }
+        //         },
+        json_tmp = json_object_new_object();
+        addStateToJson("apps",
+                       crr_state.layer.apps.is_changed,
+                       stm::gStmLayoutNo2Name[crr_state.layer.apps.state],
+                       &json_tmp);
+        json_object_array_add(json_layer, json_tmp);
+
+        //         {
+        //             "restriction": {
+        //                 "is_changed": <bool>,
+        //                 "state": <const char*>
+        //             }
+        //         },
+        json_tmp = json_object_new_object();
+        addStateToJson("restriction",
+                       crr_state.layer.restriction.is_changed,
+                       stm::gStmLayoutNo2Name[crr_state.layer.restriction.state],
+                       &json_tmp);
+        json_object_array_add(json_layer, json_tmp);
+
+        //         {
+        //             "on_screen": {
+        //                 "is_changed": <bool>,
+        //                 "state": <const char*>
+        //             }
+        //         },
+        json_tmp = json_object_new_object();
+        addStateToJson("on_screen",
+                       crr_state.layer.on_screen.is_changed,
+                       stm::gStmLayoutNo2Name[crr_state.layer.on_screen.state],
+                       &json_tmp);
+        json_object_array_add(json_layer, json_tmp);
+
+        // Add json array of layer
+        json_object_object_add(json_out, "layers", json_layer);
+
+        // Call event handler
+        event_data.handler(json_out);
+
+        if (crr_state.car.is_changed) {
+            // Set delay event(restriction mode on) when car state is chaged stop -> run 
+            if (stm::gStmCarStateNoRun == crr_state.car.state) {
+                checkPolicyEntry(event_data.ctx, STM_EVT_NO_RESTRICTION_MODE_ON,
+                                 3000, event_data.handler);
+            }
+            else if (stm::gStmCarStateNoStop == crr_state.car.state) {
+                checkPolicyEntry(event_data.ctx, STM_EVT_NO_RESTRICTION_MODE_OFF,
+                                 0, event_data.handler);
+            }
+        }
+
+        // Release json_object
+        json_object_put(json_out);
+
+        HMI_DEBUG("wm:pm", ">>>>>>>>>> FINISH CHECK POLICY");
+    }
+    else {
+        HMI_DEBUG("wm", "Request for event:%d is removed", event);
+    }
+
+    // Release data
+    delete (int*)data;
+
+    // Destroy sd_event_soutce object
+    sd_event_source_unref(source);
+
+    return 0;
+}
+
+static int checkPolicyEntry(PolicyManager* ctx, int event, int delay_ms,
+                            PolicyManager::Handler handler)
+{
+    HMI_DEBUG("wm:pm", "Call");
+    HMI_DEBUG("wm:pm", "event:0x%x", event);
+
+    // If event is restriction off and there is restriction on event,
+    // remove restriction on event
+    if ((STM_EVT_NO_RESTRICTION_MODE_OFF == event)
+      && (pm::event_data_list.find(event) != pm::event_data_list.end())) {
+        HMI_DEBUG("wm:pm", "Remove event: restriction on");
+        pm::event_data_list.erase(STM_EVT_NO_RESTRICTION_MODE_ON);
+    }
+
+    // Create event data
+    pm::EventData event_data;
+    event_data.ctx = ctx;
+    event_data.event = event;
+    event_data.handler = handler;
+    pm::event_data_list[event] = event_data;
+
+    // Get current time
+    struct timespec time_spec;
+    clock_gettime(CLOCK_MONOTONIC, &time_spec);
+
+    // Calculate timer fired time
+    uint64_t usec = (time_spec.tv_sec * 1000000)
+                    + (time_spec.tv_nsec / 1000)
+                    + (delay_ms * 1000);
+
+    // Set timer
+    struct sd_event_source *source; 
+    int ret = sd_event_add_time(pm::event_loop, &source, CLOCK_MONOTONIC, usec, 1,
+                                &checkPolicy, new int(event));
+    if (0 > ret) {
+        HMI_ERROR("wm:pm", "Faild to sd_event_add_time: errno:%d", ret);
+        return -1;
+    }
+
+    return 0;
+}
+
+int PolicyManager::inputEvent(json_object* json_in, PolicyManager::Handler notify_state) {
     HMI_DEBUG("wm:pm", "Call");
 
     // Check arguments
-    if ((nullptr == json_in) || (nullptr == json_out)) {
+    if (nullptr == json_in) {
         HMI_ERROR("wm:pm", "Argument is NULL!!");
         return -1;
     }
 
     // Get event from json_object
-    const char* event = getStringFromJson(json_in, "event");
+    const char* event = this->getStringFromJson(json_in, "event");
     int event_no = 0;
     if (nullptr != event) {
         // Convert name to number
@@ -94,7 +417,7 @@ int PolicyManager::checkPolicy(json_object* json_in, json_object** json_out) {
     }
 
     // Get role from json_object
-    const char* role = getStringFromJson(json_in, "role");
+    const char* role = this->getStringFromJson(json_in, "role");
     int category_no = 0;
     if (nullptr != role) {
         HMI_DEBUG("wm:pm", "role(%s)", role);
@@ -113,7 +436,7 @@ int PolicyManager::checkPolicy(json_object* json_in, json_object** json_out) {
     }
 
     // Get areat from json_object
-    const char* area = getStringFromJson(json_in, "area");
+    const char* area = this->getStringFromJson(json_in, "area");
     int area_no = 0;
     if (nullptr != area) {
         // Convert name to number
@@ -121,103 +444,8 @@ int PolicyManager::checkPolicy(json_object* json_in, json_object** json_out) {
         HMI_DEBUG("wm:pm", "area(%s:%d)", area, area_no);
     }
 
-    // Transition state
-    HMI_DEBUG("wm:pm", "set event:0x%x", (event_no | category_no | area_no));
-    int ret = stmTransitionState((event_no | category_no | area_no),
-                                       &(this->current_state_));
-    if (0 > ret) {
-        HMI_ERROR("wm:pm", "Error!!");
-        return -1;
-    }
-
-    // Create result
-    // {
-    //     "parking_brake": {
-    //         "is_changed": <bool>,
-    //         "state": <const char*>
-    //     },
-    HMI_DEBUG("wm", "parking brake state (is_changed:%d state:%d:%s)",
-              this->current_state_.parking_brake.is_changed,
-              this->current_state_.parking_brake.state,
-              stm::gStmCarStateNo2Name[this->current_state_.parking_brake.state]);
-    this->addStateToJson("parking_brake",
-                         this->current_state_.parking_brake.is_changed,
-                         stm::gStmParkingBrakeStateNo2Name[this->current_state_.parking_brake.state],
-                         json_out);
-
-    //     "car": {
-    //         "is_changed": <bool>,
-    //         "state": <const char*>
-    //     },
-    HMI_DEBUG("wm", "car state (is_changed:%d state:%d:%s)",
-              this->current_state_.car.is_changed,
-              this->current_state_.car.state,
-              stm::gStmCarStateNo2Name[this->current_state_.car.state]);
-    this->addStateToJson("car",
-                         this->current_state_.car.is_changed,
-                         stm::gStmCarStateNo2Name[this->current_state_.car.state],
-                         json_out);
-
-    //     "lamp": {
-    //         "is_changed": <bool>,
-    //         "state": <const char*>
-    //     },
-    HMI_DEBUG("wm", "lamp state (is_changed:%d state:%d:%s)",
-              this->current_state_.lamp.is_changed,
-              this->current_state_.lamp.state,
-              stm::gStmLampStateNo2Name[this->current_state_.lamp.state]);
-    this->addStateToJson("lamp",
-                         this->current_state_.lamp.is_changed,
-                         stm::gStmLampStateNo2Name[this->current_state_.lamp.state],
-                         json_out);
-
-    //     "layers": [
-    //         {
-    //             "on_screen": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    json_object* json_layer = json_object_new_array();
-    json_object* json_tmp = json_object_new_object();
-    this->addStateToJson("on_screen",
-                         this->current_state_.layer.on_screen.is_changed,
-                         stm::gStmLayoutNo2Name[this->current_state_.layer.on_screen.state],
-                         &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    //         {
-    //             "apps": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    json_tmp = json_object_new_object();
-    this->addStateToJson("apps",
-                         this->current_state_.layer.apps.is_changed,
-                         stm::gStmLayoutNo2Name[this->current_state_.layer.apps.state],
-                         &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    //         {
-    //             "homescreen": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    //     ]
-    // }
-    json_tmp = json_object_new_object();
-    this->addStateToJson("homescreen",
-                         this->current_state_.layer.homescreen.is_changed,
-                         stm::gStmLayoutNo2Name[this->current_state_.layer.homescreen.state],
-                         &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    // Add json array of layer
-    json_object_object_add(*json_out, "layers", json_layer);
-
-    HMI_DEBUG("wm:pm", "json_out.dump:%s", json_object_get_string(*json_out));
+    // Check policy
+    checkPolicyEntry(this, (event_no | category_no | area_no), 0, notify_state);
 
     return 0;
 }
@@ -244,9 +472,9 @@ int PolicyManager::loadRoleDb() {
     }
 
     // Load role.db
-    HMI_DEBUG("wm:pm", "file_name:%s", file_name.c_str());
-    json_object* json_obj = json_object_from_file(file_name.c_str());
-    if (nullptr == json_obj) {
+    json_object* json_obj;
+    int ret = this->inputJsonFilie(file_name.c_str(), &json_obj);
+    if (0 > ret) {
         HMI_ERROR("wm:pm", "Could not open role.db, so use default role information");
         json_obj = json_tokener_parse(kDefaultRoleDb);
     }
@@ -318,6 +546,9 @@ int PolicyManager::loadRoleDb() {
     return 0;
 }
 
+// TODO:
+// This function will be removed because json_helper has same function.
+// json_helper should be library.
 const char* PolicyManager::getStringFromJson(json_object* obj, const char* key) {
     if ((nullptr == obj) || (nullptr == key)) {
         HMI_ERROR("wm:pm", "Argument is nullptr!!!");
@@ -333,35 +564,60 @@ const char* PolicyManager::getStringFromJson(json_object* obj, const char* key)
     return json_object_get_string(tmp);
 }
 
-int PolicyManager::getIntFromJson(json_object* obj, const char* key) {
-    if ((nullptr == obj) || (nullptr == key)) {
-        HMI_ERROR("wm:pm", "Argument is nullptr!!!");
-        return 0;
-    }
+// TODO:
+// This function will be removed because json_helper has same function.
+// json_helper should be library.
+int PolicyManager::inputJsonFilie(const char* file, json_object** obj) {
+    const int input_size = 128;
+    int ret = -1;
 
-    json_object* tmp;
-    if (!json_object_object_get_ex(obj, key, &tmp)) {
-        HMI_DEBUG("wm:pm", "Not found key \"%s\"", key);
-        return 0;
+    if ((nullptr == file) || (nullptr == obj)) {
+        HMI_ERROR("wm:jh", "Argument is nullptr!!!");
+        return ret;
     }
 
-    return json_object_get_int(tmp);
-}
+    HMI_DEBUG("wm:jh", "Input file: %s", file);
 
-void PolicyManager::addStateToJson(
-  const char* key, int is_changed, const char* state, json_object** json_out) {
-    if ((nullptr == key) || (nullptr == state) || (nullptr == json_out)) {
-        HMI_ERROR("wm:pm", "Argument is nullptr!!!");
-        return;
+    // Open json file
+    FILE *fp = fopen(file, "rb");
+    if (nullptr == fp) {
+        HMI_ERROR("wm:jh", "Could not open file");
+        return ret;
     }
 
-    json_object* json_obj = json_object_new_object();
-    json_object_object_add(json_obj, "is_changed", json_object_new_boolean(is_changed));
-    if (is_changed) {
-        HMI_DEBUG("wm:pm", "%s: state changed (%s)", key, state);
-        json_object_object_add(json_obj, "state", json_object_new_string(state));
+    // Parse file data
+    struct json_tokener *tokener = json_tokener_new();
+    enum json_tokener_error json_error;
+    char buffer[input_size];
+    int block_cnt = 1;
+    while (1) {
+        size_t len = fread(buffer, sizeof(char), input_size, fp);
+        *obj = json_tokener_parse_ex(tokener, buffer, len);
+        if (nullptr != *obj) {
+            HMI_DEBUG("wm:jh", "File input is success");
+            ret = 0;
+            break;
+        }
+
+        json_error = json_tokener_get_error(tokener);
+        if ((json_tokener_continue != json_error)
+            || (input_size > len)) {
+            HMI_ERROR("wm:jh", "Failed to parse file (byte:%d err:%s)",
+                      (input_size * block_cnt), json_tokener_error_desc(json_error));
+            HMI_ERROR("wm:jh", "\n%s", buffer);
+            *obj = nullptr;
+            break;
+        }
+        block_cnt++;
     }
-    json_object_object_add(*json_out, key, json_obj);
+
+    // Close json file
+    fclose(fp);
+
+    // Free json_tokener
+    json_tokener_free(tokener);
+
+    return ret;
 }
 
 std::vector<std::string> PolicyManager::parseString(std::string str, char delimiter) {