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xmlstream: make sink implementation generic

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This allows to use any serialisable type. The advantage is that moves
and clones are avoided (which would otherwise be needed to construct
e.g. a XmppStreamElement from a Stanza or Message).
This commit is contained in:
Jonas Schäfer 2024-09-02 17:27:23 +02:00
commit c6f928d5c8
6 changed files with 62 additions and 34 deletions
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38
tokio-xmpp/src/client/stream.rs
View file

@ -97,7 +97,10 @@ impl<C: ServerConnector> Stream for Client<C> {
bound_jid,
} => {
// Poll sink
match Pin::new(&mut stream).poll_ready(cx) {
match <XmppStream<C::Stream> as Sink<&XmppStreamElement>>::poll_ready(
Pin::new(&mut stream),
cx,
) {
Poll::Pending => (),
Poll::Ready(Ok(())) => (),
Poll::Ready(Err(e)) => {
@ -195,36 +198,45 @@ impl<C: ServerConnector> Sink<Stanza> for Client<C> {
fn start_send(mut self: Pin<&mut Self>, item: Stanza) -> Result<(), Self::Error> {
match self.state {
ClientState::Connected { ref mut stream, .. } => Pin::new(stream)
.start_send(&item.into())
.map_err(|e| e.into()),
ClientState::Connected { ref mut stream, .. } => {
Pin::new(stream).start_send(&item).map_err(|e| e.into())
}
_ => Err(Error::InvalidState),
}
}
fn poll_ready(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
match self.state {
ClientState::Connected { ref mut stream, .. } => {
Pin::new(stream).poll_ready(cx).map_err(|e| e.into())
}
ClientState::Connected { ref mut stream, .. } => <XmppStream<C::Stream> as Sink<
&XmppStreamElement,
>>::poll_ready(
Pin::new(stream), cx
)
.map_err(|e| e.into()),
_ => Poll::Pending,
}
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
match self.state {
ClientState::Connected { ref mut stream, .. } => {
Pin::new(stream).poll_flush(cx).map_err(|e| e.into())
}
ClientState::Connected { ref mut stream, .. } => <XmppStream<C::Stream> as Sink<
&XmppStreamElement,
>>::poll_flush(
Pin::new(stream), cx
)
.map_err(|e| e.into()),
_ => Poll::Pending,
}
}
fn poll_close(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
match self.state {
ClientState::Connected { ref mut stream, .. } => {
Pin::new(stream).poll_close(cx).map_err(|e| e.into())
}
ClientState::Connected { ref mut stream, .. } => <XmppStream<C::Stream> as Sink<
&XmppStreamElement,
>>::poll_close(
Pin::new(stream), cx
)
.map_err(|e| e.into()),
_ => Poll::Pending,
}
}