rustzmq2 0.1.0

A native async Rust implementation of ZeroMQ
Documentation 
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use crate::error::JoinError;

use std::future::Future;
use std::pin::Pin;
use std::task::{Context, Poll};

pub struct JoinHandle<T>(tokio::task::JoinHandle<T>);

impl<T> Future for JoinHandle<T> {
    type Output = Result<T, JoinError>;

    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        tokio::task::JoinHandle::poll(Pin::new(&mut self.0), cx).map_err(Into::into)
    }
}

impl<T> From<tokio::task::JoinHandle<T>> for JoinHandle<T> {
    fn from(h: tokio::task::JoinHandle<T>) -> Self {
        Self(h)
    }
}

#[track_caller]
pub fn spawn<T>(task: T) -> JoinHandle<T::Output>
where
    T: Future + Send + 'static,
    T::Output: Send + 'static,
{
    tokio::task::spawn(task).into()
}

pub async fn sleep(duration: std::time::Duration) {
    tokio::time::sleep(duration).await;
}

pub async fn timeout<F, T>(
    duration: std::time::Duration,
    f: F,
) -> std::result::Result<T, Box<dyn std::error::Error>>
where
    F: Future<Output = T>,
{
    let result = tokio::time::timeout(duration, f).await?;
    Ok(result)
}