Struct devtimer::DevTime

pub struct DevTime { /* fields omitted */ }

The DevTime struct provides a simple implementation for timing operations using the standard library

Methods

impl DevTime

pub fn new() -> DevTime

Returns a new instance of the DevTime struct

pub fn start(&mut self)

Starts a timer on a mutable DevTime object

pub fn stop(&mut self)

Stops a timer on a mutable DevTime object

pub fn start_after(&mut self, dur: &Duration)

Starts a timer after a specified duration

Example

use devtimer;
use std::time::Duration;
let mut timer = DevTime::new();
timer.start_after(Duration::from_secs(2));
// The timer will automatically start after two seconds
do_some_long_operation();
println!("Time taken: {}", timer.time_in_secs().unwrap());
// The timer can be reused normally again
timer.start(); // this starts the timer instantly
do_another_long_operation();
timer.stop();
println!("Time taken: {}", timer.time_in_secs().unwrap());

Important Note

This will try to be as precise as possible. However exact precision cannot be guranteed. As tested on multiple platforms, there are variations in the range of 0 to 10 nanoseconds.

pub fn time_in_nanos(&self) -> Option<u128>

Returns an Option<u128> with the difference from the starting time that was created with start() and the stop time that was created with stop(). If both the fields exist, then the time difference is returned in nanoseconds, otherwise None is returned

pub fn time_in_micros(&self) -> Option<u128>

Returns an Option<u128> with the difference from the starting time that was created with start() and the stop time that was created with stop(). If both the fields exist, then the time difference is returned in microseconds, otherwise None is returned

pub fn time_in_millis(&self) -> Option<u128>

Returns an Option<u128> with the difference from the starting time that was created with start() and the stop time that was created with stop(). If both the fields exist, then the time difference is returned in milliseconds, otherwise None is returned

pub fn time_in_secs(&self) -> Option<u64>

Returns an Option<u64> with the difference from the starting time that was created with start() and the stop time that was created with stop(). If both the fields exist, then the time difference is returned in seconds, otherwise None is returned