Start using spdlog library

b CAN

.gitignore

@@ -34,3 +34,5 @@
 .vscode/
 
 build/
+
+logs/

tools/CMakeLists.txt

@@ -29,8 +29,8 @@ target_include_directories(server
 )
 
 target_link_libraries(server PRIVATE
-    CAN
     UI
     Timer
     magic_enum::magic_enum
+    spdlog
 )

tools/main.cpp

@@ -3,25 +3,57 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+#include "spdlog/spdlog.h"
+#include "spdlog/async.h"
+#include "spdlog/sinks/stdout_color_sinks.h"
+#include "spdlog/sinks/rotating_file_sink.h"
+
 #include "simulators.hpp"
 #include "websocket.hpp"
 #include "message_parser.hpp"
 
+class Spdlog_buffer : public std::stringbuf
+{
+public:
+    int sync() {
+        std::string str = this->str();
+        str.pop_back();
+        spdlog::info(str);
+        this->str("");
+        return 0;
+    }
+};
+
 Simulators g_simulators;
 Websocket* g_web_socket;
+Spdlog_buffer g_buffer;
+std::ostream g_out(&g_buffer);
 
 void int_handler(int s)
 {
     UNUSED(s);
-    std::cout << "\nCaught Ctrl + C\nShutting down." << std::endl;
+    g_out << "Caught Ctrl + C" << std::endl;
     if (g_web_socket != nullptr)
         g_web_socket->stop();
     g_simulators.stop();
+    g_out << "Shutting down." << std::endl;
     // delay to allow the server to stop gracefully
     std::this_thread::sleep_for(std::chrono::milliseconds(1000));
     exit(1);
 }
 
+void init_logger()
+{
+    spdlog::init_thread_pool(8192, 1);
+    auto stdout_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt >();
+    auto rotating_sink = std::make_shared<spdlog::sinks::rotating_file_sink_mt>("logs/sim_us.txt", 1024*1024*10, 3);
+    std::vector<spdlog::sink_ptr> sinks {stdout_sink, rotating_sink};
+    auto logger = std::make_shared<spdlog::async_logger>("sim_us", sinks.begin(), sinks.end(), spdlog::thread_pool(), spdlog::async_overflow_policy::block);
+    spdlog::set_default_logger(logger);
+    spdlog::set_pattern("[%H:%M:%S %z] [%n] [%^---%L---%$] [thread %t] %v");
+    spdlog::flush_every(std::chrono::seconds(3));
+}
+
 int main(void)
 {
     // Setup the signal handler
@@ -33,9 +65,12 @@ int main(void)
 
     sigaction(SIGINT, &sigIntHandler, NULL);
 
+    // Initialize the logger
+    init_logger();
 
     // The server starts in this thread
-    Websocket web_socket(9002, [](std::string message) { return message_parser(message); }, []() { return g_simulators.changed_UI_items().dump(); });
+    spdlog::info("Starting server");
+    Websocket web_socket(9002, &g_out, [](std::string message) { return message_parser(message); }, []() { return g_simulators.changed_UI_items().dump(); });
     g_web_socket = &web_socket;
 
     // Start the message processor and broadcast processor in separate threads

tools/message_parser.cpp

@@ -30,27 +30,27 @@ json command_parser(json command)
     switch (cmd)
     {
         case Command::get_UI_element:
-            std::cout << type << ": " << command["id"] << std::endl;
+            spdlog::info("{}: {}", type, std::string(command["id"]));
             j["response"]["type"] = type;
             j["response"]["UI_item"] = g_simulators.invoke_active_simulator()->get_UI_item(command["id"])->to_json();
             break;
         case Command::get_UI_elements:
-            std::cout << type << std::endl;
+            spdlog::info("{}", type);
             j["response"]["type"] = type;
             j["response"]["UI_items"] = g_simulators.invoke_active_simulator()->get_UI_items()["UI_items"];
             break;
         case Command::switch_simulator:
-            std::cout << type << " to " << command["name"] << std::endl;
+            spdlog::info("{} to {}", type, std::string(command["name"]));
             g_simulators.switch_simulator(command["name"]);
             j["response"]["type"] = type;
             break;
         case Command::get_active_simulator_name:
-            std::cout << type << std::endl;
+            spdlog::info("{}", type);
             j["response"]["type"] = type;
             j["response"]["name"] = g_simulators.active_simulator_name();
             break;
         case Command::get_simulators:
-            std::cout << type << std::endl;
+            spdlog::info("{}", type);
             j["response"]["type"] = type;
             j["response"]["simulators"] = g_simulators.list_simulators();
             break;

tools/simulator_base.hpp

@@ -2,6 +2,7 @@
 
 #include "UI.hpp"
 #include "timer.hpp"
+#include "spdlog/spdlog.h"
 
 class Simulator_base {
 

tools/simulators/test_sim.cpp

@@ -3,11 +3,11 @@
 
 Test_Sim::Test_Sim() :
 Simulator_base("Test_Sim"),
-m_button("button", "Button", Color(Color::White), Color(Color::Black), [](std::string id) { std::cout << "Button " << id << " clicked" << std::endl; }),
-m_combobox("combobox", "Combobox", Color(Color::White), Color(Color::Black), {"Option 1", "Option 2", "Option 3"}, 0, [](std::string id, std::string selected) { std::cout << "Combobox " << id << " selected " << selected << std::endl; }),
+m_button("button", "Off", Color(Color::White), Color(Color::Red), [this](std::string id) { button_clicked(id); }),
+m_combobox("combobox", "Combobox", Color(Color::White), Color(Color::Black), {"Option 1", "Option 2", "Option 3"}, 0, [](std::string id, std::string selected) { spdlog::info("Combobox {} selected {}", id, selected); }),
 m_label("label", "Label", Color(Color::White), Color(Color::Black)),
-m_checkbox("checkbox", "Checkbox", Color(Color::White), Color(Color::Black), {"Option 1", "Option 2", "Option 3"}, [](std::string id, std::vector<std::string> selected) { std::cout << "Checkbox " << id << " selected " << (selected.size() > 0 ? selected[0] : "") << std::endl; }),
-m_slider("slider", "Slider", Color(Color::White), Color(Color::Black), 0, 100, 50, [](std::string id, double value) { std::cout << "Slider " << id << " changed to " << value << std::endl; })
+m_checkbox("checkbox", "Checkbox", Color(Color::White), Color(Color::Black), {"Option 1", "Option 2", "Option 3"}, [](std::string id, std::vector<std::string> selected) { spdlog::info("Checkbox {} selected {}", id, (selected.size() > 0 ? selected[0] : "")); }),
+m_slider("slider", "Slider", Color(Color::White), Color(Color::Black), 0, 100, 50, [](std::string id, double value) { spdlog::info("Slider {} changed to {}", id, value); })
 {
     this->add_UI_item(&this->m_button);
     this->add_UI_item(&this->m_combobox);
@@ -24,5 +24,16 @@ void Test_Sim::timer()
 void Test_Sim::run_at_startup()
 {
     // Run at startup
-    std::cout << "Test_Sim started" << std::endl;
+    spdlog::info("Test_Sim started");
+}
+
+void Test_Sim::button_clicked(std::string id)
+{
+    if (id == "button")
+    {
+        bool state = this->m_button.bg_color() == Color(Color::Red) ? true : false;
+        this->m_button.set_bg_color(state ? Color(Color::Green) : Color(Color::Red));
+        this->m_button.set_text(state ? "On" : "Off");
+        return;
+    }
 }

tools/simulators/test_sim.hpp

@@ -6,6 +6,8 @@ class Test_Sim : public Simulator_base {
         Test_Sim();
         void timer() override;
         void run_at_startup() override;
+    private:
+        void button_clicked(std::string id);
     private:
         UI_button m_button;
         UI_combobox m_combobox;

tools/websocket.cpp

@@ -1,11 +1,14 @@
 #include "websocket.hpp"
+#include "spdlog/spdlog.h"
 
-Websocket::Websocket(uint16_t port,
+Websocket::Websocket(uint16_t port, std::ostream* out,
                      std::function<std::string(std::string)> on_message,
                      std::function<std::string()> on_update)
     : m_on_message(on_message), m_on_update(on_update), m_port(port)
 {
     // Set logging settings
+    m_server.get_alog().set_custom(out == &std::cout ? false : true);
+    m_server.get_alog().set_ostream(out);
     m_server.set_access_channels(websocketpp::log::alevel::connect +
                                 websocketpp::log::alevel::disconnect);
     m_server.clear_access_channels(websocketpp::log::alevel::frame_payload +
@@ -31,9 +34,9 @@ void Websocket::run()
         // Start the ASIO io_service run loop
         m_server.run();
     } catch (websocketpp::exception const& e) {
-        std::cout << e.what() << std::endl;
+        spdlog::critical("{}", e.what());
     } catch (...) {
-        std::cout << "other exception" << std::endl;
+        spdlog::critical("other exception");
     }
 }
 

tools/websocket.hpp

@@ -35,7 +35,7 @@ struct action {
 class Websocket
 {
 public:
-    Websocket(uint16_t port, std::function<std::string(std::string)> on_message, std::function<std::string()> on_update);
+    Websocket(uint16_t port, std::ostream* out, std::function<std::string(std::string)> on_message, std::function<std::string()> on_update);
     void run();
     void stop();
     void process_messages();