os_clock 0.3.1

Operating system clocks, for measuring with cpu time
Documentation 
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use std::io::Result;
use std::time::Duration;

use super::Clock;

/// Helper to measure time elapsed
///
/// Get a timer with `Clock.start_timer()`
pub struct Timer<'c, C: Clock> {
    pub start: Duration,
    pub clock: &'c C,
}

impl<'c, C: Clock> Timer<'c, C> {
    /// Returns the ellapsed time since `start`
    pub fn elapsed(&self) -> Result<Duration> {
        let end = self.clock.get_time()?;
        return Ok(end - self.start);
    }

    /// Drops the timer and returns the ellapsed time since `start`
    #[inline(always)]
    pub fn end(self) -> Result<Duration> {
        return self.elapsed();
    }
}