added cross-platform

Planner/Utils.h

@@ -3,8 +3,14 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <errno.h>
-#include <unistd.h>
 #include <time.h>
+#include <chrono>
+#include <thread>
+
+#if __cplusplus >= 201703L
+#include <filesystem>
+#endif
+
 #include "String.h"
 
 class Utils {
@@ -16,31 +22,39 @@ public:
 		return (a > b) ? b : a;
 	}
 	static void Mkdir(const String& path) {
+#if __cplusplus >= 201703L
+		std::filesystem::create_directory(path.getCharArray());
+#else
 		mkdir(path.getCharArray(), 0777);
+#endif
 	}
+
 	//https://stackoverflow.com/questions/4568681/using-chmod-in-a-c-program
 	static void Chmod(const String& path) {
 		String command = "chmod 777 " + String::DQuotes(path);
 		system(command.getCharArray());
 	}
+
 	//https://stackoverflow.com/questions/230062/whats-the-best-way-to-check-if-a-file-exists-in-c
 	static bool Exists(const String& path) {
 		struct stat buffer;
 		return (stat(path.getCharArray(), &buffer) == 0);
 	}
+
+	//in seconds
 	static void Sleep(int s) {
-		usleep(s * 1000000);
+		std::chrono::seconds timespan(s);
+		std::this_thread::sleep_for(timespan);
 	}
 	static void Copy(const String& src, const String& dst) {
 		String command = "cp " + String::DQuotes(src) + " " + String::DQuotes(dst);
 		system(command.getCharArray());
 	}
-	static long getAbsoluteTime() {
+	static time_t getAbsoluteTime() {
 		return time(NULL);
 	}
 	static String getDate() {
-		long int ttime;
-		ttime = time(NULL);
+		auto ttime = time(NULL);
 		String res(ctime(&ttime));
 		return res;
 	}