watch 0.2.3

A synchronous message passing channel that only retains the most recent value.
Documentation 
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use std::{sync::MutexGuard, time::Duration};

pub struct Mutex<T> {
    inner: std::sync::Mutex<T>,
}

impl<T> Mutex<T> {
    pub fn new(value: T) -> Self {
        Self {
            inner: std::sync::Mutex::new(value),
        }
    }

    pub fn lock(&self) -> MutexGuard<'_, T> {
        match self.inner.lock() {
            Ok(guard) => guard,
            Err(poison) => poison.into_inner(),
        }
    }
}

pub struct Condvar {
    inner: std::sync::Condvar,
}
impl Condvar {
    pub fn new() -> Self {
        Self {
            inner: std::sync::Condvar::new(),
        }
    }

    pub fn wait<'a, T>(&self, guard: MutexGuard<'a, T>) -> MutexGuard<'a, T> {
        match self.inner.wait(guard) {
            Ok(guard) => guard,
            Err(poison) => poison.into_inner(),
        }
    }

    pub fn wait_timeout<'a, T>(
        &self,
        guard: MutexGuard<'a, T>,
        duration: Duration,
    ) -> Option<MutexGuard<'a, T>> {
        match self.inner.wait_timeout(guard, duration) {
            Ok((guard, _)) => Some(guard),
            Err(_) => None,
        }
    }
    pub fn notify_all(&self) {
        self.inner.notify_all();
    }
}