tokio-tls: enable Send and Sync (#1317)

-  update 0 as *mut () calls to std::ptr::null_mut()
- impl Send and Sync for AllowStd
This commit is contained in:
João Oliveira 2019-07-19 18:21:27 +01:00 committed by Carl Lerche
parent d0bb16192b
commit a298472da8

View File

@ -26,6 +26,7 @@ use std::future::Future;
use std::io::{self, Read, Write};
use std::marker::Unpin;
use std::pin::Pin;
use std::ptr::null_mut;
use std::task::{Context, Poll};
use tokio_io::{AsyncRead, AsyncWrite};
@ -77,10 +78,14 @@ where
AllowStd<S>: Read + Write,
{
fn drop(&mut self) {
(self.0).0.get_mut().context = 0 as *mut ();
(self.0).0.get_mut().context = null_mut();
}
}
// *mut () context is neither Send nor Sync
unsafe impl<S: Send> Send for AllowStd<S> {}
unsafe impl<S: Sync> Sync for AllowStd<S> {}
impl<S> AllowStd<S>
where
S: Unpin,
@ -234,11 +239,11 @@ where
match (inner.f)(stream) {
Ok(mut s) => {
s.get_mut().context = 0 as *mut ();
s.get_mut().context = null_mut();
Poll::Ready(Ok(StartedHandshake::Done(TlsStream(s))))
}
Err(HandshakeError::WouldBlock(mut s)) => {
s.get_mut().context = 0 as *mut ();
s.get_mut().context = null_mut();
Poll::Ready(Ok(StartedHandshake::Mid(s)))
}
Err(HandshakeError::Failure(e)) => Poll::Ready(Err(e)),
@ -310,7 +315,7 @@ impl<S: AsyncRead + AsyncWrite + Unpin> Future for MidHandshake<S> {
Ok(stream) => Poll::Ready(Ok(TlsStream(stream))),
Err(HandshakeError::Failure(e)) => Poll::Ready(Err(e)),
Err(HandshakeError::WouldBlock(mut s)) => {
s.get_mut().context = 0 as *mut ();
s.get_mut().context = null_mut();
mut_self.0 = Some(s);
Poll::Pending
}