Add external timer class

external/timer/CMakeLists.txt

@@ -0,0 +1,12 @@
+add_library(Timer STATIC)
+
+target_sources(Timer
+  PRIVATE
+    ${CMAKE_CURRENT_LIST_DIR}/timer.cpp
+    
+)
+
+target_include_directories(Timer
+  PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+)

external/timer/timer.cpp

@@ -0,0 +1,34 @@
+#include "timer.hpp"
+
+Timer::Timer(void (*function)()) {
+    this->function = function;
+}
+
+void Timer::setTimeout(std::chrono::milliseconds delay) {
+
+    this->p_clear = false;
+    std::thread t([this, delay]() {
+        if(this->p_clear) return;
+        std::this_thread::sleep_for(delay);
+        if(this->p_clear) return;
+        function();
+    });
+    t.detach();
+}
+
+void Timer::setInterval(std::chrono::milliseconds interval) {
+    this->p_clear = false;
+    std::thread t([this, interval]() {
+        while(true) {
+            if(this->p_clear) return;
+            std::this_thread::sleep_for(interval);
+            if(this->p_clear) return;
+            function();
+        }
+    });
+    t.detach();
+}
+
+void Timer::stop() {
+    this->p_clear = true;
+}

external/timer/timer.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include <chrono>
+#include <thread>
+
+class Timer {
+public:
+    Timer(void (*function)());
+    void setTimeout(std::chrono::milliseconds delay);
+    void setInterval(std::chrono::milliseconds interval);
+    void stop();
+private:
+    bool p_clear = false;
+    std::mutex p_clear_mutex;
+    void (*function)();
+};