tcp-pool 0.4.1

A tcp pool
Documentation 
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use std::fmt::{Debug, Formatter};
use std::ops::{Deref, DerefMut};

/// tcp流
pub struct TcpStream {
    f: Option<Box<dyn FnOnce() + Send + 'static>>,
    stream: tokio::net::TcpStream,
}

impl TcpStream {
    pub(crate) fn new<F: FnOnce() + Send + 'static>(f: F, stream: tokio::net::TcpStream) -> Self {
        TcpStream {
            f: Some(Box::new(f)),
            stream,
        }
    }
}

impl Debug for TcpStream {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        self.stream.fmt(f)
    }
}

impl Drop for TcpStream {
    fn drop(&mut self) {
        self.f.take().unwrap()()
    }
}

impl Deref for TcpStream {
    type Target = tokio::net::TcpStream;

    fn deref(&self) -> &Self::Target {
        &self.stream
    }
}

impl DerefMut for TcpStream {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut self.stream
    }
}