import CSystem

extension ArkSys {
    public struct Time {
        /// Returns the current monotonic timestamp in milliseconds.
        public static func currentMs() -> UInt64 {
            var ts = timespec()
            clock_gettime(CLOCK_MONOTONIC, &ts)
            return UInt64(ts.tv_sec) * 1000 + UInt64(ts.tv_nsec) / 1_000_000
        }
        
        /// Suspends the current thread for the specified number of milliseconds.
        public static func sleep(ms: UInt64) {
            usleep(useconds_t(ms * 1000))
        }
    }
}