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use std::time::{Duration, Instant, SystemTime};
enum StopwatchState {
Running,
Paused,
}
pub struct Stopwatch {
state: StopwatchState,
duration: Duration,
instant: Instant,
}
impl Stopwatch {
pub fn new() -> Self {
Self::default()
}
pub fn elapsed(&self) -> Duration {
match self.state {
StopwatchState::Running => {
self.duration + self.instant.elapsed()
},
StopwatchState::Paused => {
self.duration
},
}
}
pub fn restart(&mut self) {
self.duration = Duration::new(0, 0);
self.instant = Instant::now();
self.state = StopwatchState::Running;
}
pub fn pause(&mut self) {
self.duration += self.instant.elapsed();
self.state = StopwatchState::Paused;
}
pub fn unpause(&mut self) {
self.instant = Instant::now();
self.state = StopwatchState::Running;
}
}
impl Default for Stopwatch {
fn default() -> Self {
Self {
state: StopwatchState::Running,
duration: Duration::new(0, 0),
instant: Instant::now(),
}
}
}
pub struct SystemStopwatch {
state: StopwatchState,
duration: Duration,
instant: SystemTime,
}
impl SystemStopwatch {
pub fn new() -> Self {
Self::default()
}
pub fn elapsed(&self) -> Duration {
match self.state {
StopwatchState::Running => {
self.duration + self.instant.elapsed().unwrap()
},
StopwatchState::Paused => {
self.duration
},
}
}
pub fn restart(&mut self) {
self.duration = Duration::new(0, 0);
self.instant = SystemTime::now();
self.state = StopwatchState::Running;
}
pub fn pause(&mut self) {
self.duration += self.instant.elapsed().unwrap();
self.state = StopwatchState::Paused;
}
pub fn unpause(&mut self) {
self.instant = SystemTime::now();
self.state = StopwatchState::Running;
}
}
impl Default for SystemStopwatch {
fn default() -> Self {
Self {
state: StopwatchState::Running,
duration: Duration::new(0, 0),
instant: SystemTime::now(),
}
}
}