43 pub const FSEC_PER_SEC: u64 = 1000000000000000;
72                     CurrentTimeArch::get_cycles() as u64 / khz,  in now()
89         Duration::from_micros((sec * 1000000 + nsec / 1000) as u64)  in sub()
104         Duration::from_micros(val.tv_sec as u64 * 1000000 + val.tv_nsec as u64 / 1000)  in from()
240     micros: u64,
246     pub const fn from_micros(micros: u64) -> Duration {  in from_micros()
251     pub const fn from_millis(millis: u64) -> Duration {  in from_millis()
258     pub const fn from_secs(secs: u64) -> Duration {  in from_secs()
265     pub const fn millis(&self) -> u64 {  in millis()  argument
270     pub const fn micros(&self) -> u64 {  in micros()  argument
275     pub const fn secs(&self) -> u64 {  in secs()  argument
280     pub const fn total_millis(&self) -> u64 {  in total_millis()  argument
285     pub const fn total_micros(&self) -> u64 {  in total_micros()  argument
335         Duration::from_micros(self.micros * rhs as u64)  in mul()
341         self.micros *= rhs as u64;  in mul_assign()
349         Duration::from_micros(self.micros / rhs as u64)  in div()
355         self.micros /= rhs as u64;  in div_assign()
389         Duration::from_micros(other.as_secs() * 1000000 + other.subsec_micros() as u64)  in from()