#define SLEEP_H__
#ifdef _WIN32
-#include <windows.h>
-#define sleep(n) Sleep(1000 * n)
-#define msleep(n) Sleep(n)
+# include <windows.h>
+# define sleep(n) Sleep(1000 * n)
+# define msleep(n) Sleep(n)
#else
-#include <unistd.h>
-#define msleep(n) usleep(1000 * n)
-#endif
+# include <inttypes.h>
+# include <unistd.h>
+ void nsleep(uint64_t n);
+# define msleep(n) nsleep(1000000 * n)
+# define usleep(n) nsleep(1000 * n)
+#endif // _WIN32
-#endif
+#endif // SLEEP_H__