add network monitoring

include/sys.hpp

@@ -1,6 +1,7 @@
 #ifndef SYS_HPP
 #define SYS_HPP
 
+#include <string_view>
 #include <sys/statvfs.h>
 
 #include <array>
@@ -30,12 +31,18 @@ struct TimeDate {
     char date[13];
 };
 
+struct Network {
+    uint32_t download = 0;
+    uint32_t upload = 0;
+};
+
 void getTimeDate(TimeDate* td);
 void getDisk(Memory* disk, std::string mount);
 void getRam(Memory* mem);
+void getNetwork(Network* net, std::string_view device);
 void detectHwmon(sysSensors* s, std::string platform);
 void updateSensors(sysSensors* s);
 
 }  // namespace sys
 
-#endif
+#endif