feat: memory module

src/modules/memory.cpp

@@ -0,0 +1,20 @@
+#include "modules/memory.hpp"
+#include <iostream>
+
+waybar::modules::Memory::Memory()
+{
+  _label.get_style_context()->add_class("memory-widget");
+  _thread = [this] {
+    struct sysinfo info;
+    if (!sysinfo(&info)) {
+      double available = (double)info.freeram / (double)info.totalram;
+      std::cout << available << std::endl;
+      _label.set_text(fmt::format("{:.{}f}% ", available * 100, 1));
+    }
+    _thread.sleep_for(chrono::seconds(30));
+  };
+};
+
+waybar::modules::Memory::operator Gtk::Widget &() {
+  return _label;
+}