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core/muxing: Fix StreamMuxer::Error to io::Error #2664

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thomaseizinger wants to merge 4 commits into from
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core/muxing: Fix StreamMuxer::Error to io::Error #2664

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e865d40
Fix `StreamMuxer::Error` to io::Error
thomaseizinger May 15, 2022
4e5be3f
Merge branch 'master' into refactor/remove-error-assoc-type
thomaseizinger May 29, 2022
6373e09
Add changelog entry
thomaseizinger May 29, 2022
e6483a5
Merge branch 'master' into refactor/remove-error-assoc-type
thomaseizinger Jun 1, 2022
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47 changes: 22 additions & 25 deletions core/src/either.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ use futures::{
prelude::*,
};
use pin_project::pin_project;
use std::{fmt, io::Error as IoError, pin::Pin, task::Context, task::Poll};
use std::{fmt, io, io::Error as IoError, pin::Pin, task::Context, task::Poll};

#[derive(Debug, Copy, Clone)]
pub enum EitherError<A, B> {
Expand Down Expand Up @@ -203,23 +203,22 @@ where
{
type Substream = EitherOutput<A::Substream, B::Substream>;
type OutboundSubstream = EitherOutbound<A, B>;
type Error = IoError;

fn poll_event(
&self,
cx: &mut Context<'_>,
) -> Poll<Result<StreamMuxerEvent<Self::Substream>, Self::Error>> {
) -> Poll<io::Result<StreamMuxerEvent<Self::Substream>>> {
match self {
EitherOutput::First(inner) => inner.poll_event(cx).map(|result| {
result.map_err(|e| e.into()).map(|event| match event {
result.map(|event| match event {
StreamMuxerEvent::AddressChange(addr) => StreamMuxerEvent::AddressChange(addr),
StreamMuxerEvent::InboundSubstream(substream) => {
StreamMuxerEvent::InboundSubstream(EitherOutput::First(substream))
}
})
}),
EitherOutput::Second(inner) => inner.poll_event(cx).map(|result| {
result.map_err(|e| e.into()).map(|event| match event {
result.map(|event| match event {
StreamMuxerEvent::AddressChange(addr) => StreamMuxerEvent::AddressChange(addr),
StreamMuxerEvent::InboundSubstream(substream) => {
StreamMuxerEvent::InboundSubstream(EitherOutput::Second(substream))
Expand All @@ -240,16 +239,14 @@ where
&self,
cx: &mut Context<'_>,
substream: &mut Self::OutboundSubstream,
) -> Poll<Result<Self::Substream, Self::Error>> {
) -> Poll<io::Result<Self::Substream>> {
match (self, substream) {
(EitherOutput::First(ref inner), EitherOutbound::A(ref mut substream)) => inner
.poll_outbound(cx, substream)
.map(|p| p.map(EitherOutput::First))
.map_err(|e| e.into()),
.map(|p| p.map(EitherOutput::First)),
(EitherOutput::Second(ref inner), EitherOutbound::B(ref mut substream)) => inner
.poll_outbound(cx, substream)
.map(|p| p.map(EitherOutput::Second))
.map_err(|e| e.into()),
.map(|p| p.map(EitherOutput::Second)),
_ => panic!("Wrong API usage"),
}
}
Expand All @@ -272,13 +269,13 @@ where
cx: &mut Context<'_>,
sub: &mut Self::Substream,
buf: &mut [u8],
) -> Poll<Result<usize, Self::Error>> {
) -> Poll<io::Result<usize>> {
match (self, sub) {
(EitherOutput::First(ref inner), EitherOutput::First(ref mut sub)) => {
inner.read_substream(cx, sub, buf).map_err(|e| e.into())
inner.read_substream(cx, sub, buf)
}
(EitherOutput::Second(ref inner), EitherOutput::Second(ref mut sub)) => {
inner.read_substream(cx, sub, buf).map_err(|e| e.into())
inner.read_substream(cx, sub, buf)
}
_ => panic!("Wrong API usage"),
}
Expand All @@ -289,13 +286,13 @@ where
cx: &mut Context<'_>,
sub: &mut Self::Substream,
buf: &[u8],
) -> Poll<Result<usize, Self::Error>> {
) -> Poll<io::Result<usize>> {
match (self, sub) {
(EitherOutput::First(ref inner), EitherOutput::First(ref mut sub)) => {
inner.write_substream(cx, sub, buf).map_err(|e| e.into())
inner.write_substream(cx, sub, buf)
}
(EitherOutput::Second(ref inner), EitherOutput::Second(ref mut sub)) => {
inner.write_substream(cx, sub, buf).map_err(|e| e.into())
inner.write_substream(cx, sub, buf)
}
_ => panic!("Wrong API usage"),
}
Expand All @@ -305,13 +302,13 @@ where
&self,
cx: &mut Context<'_>,
sub: &mut Self::Substream,
) -> Poll<Result<(), Self::Error>> {
) -> Poll<io::Result<()>> {
match (self, sub) {
(EitherOutput::First(ref inner), EitherOutput::First(ref mut sub)) => {
inner.flush_substream(cx, sub).map_err(|e| e.into())
inner.flush_substream(cx, sub)
}
(EitherOutput::Second(ref inner), EitherOutput::Second(ref mut sub)) => {
inner.flush_substream(cx, sub).map_err(|e| e.into())
inner.flush_substream(cx, sub)
}
_ => panic!("Wrong API usage"),
}
Expand All @@ -321,13 +318,13 @@ where
&self,
cx: &mut Context<'_>,
sub: &mut Self::Substream,
) -> Poll<Result<(), Self::Error>> {
) -> Poll<io::Result<()>> {
match (self, sub) {
(EitherOutput::First(ref inner), EitherOutput::First(ref mut sub)) => {
inner.shutdown_substream(cx, sub).map_err(|e| e.into())
inner.shutdown_substream(cx, sub)
}
(EitherOutput::Second(ref inner), EitherOutput::Second(ref mut sub)) => {
inner.shutdown_substream(cx, sub).map_err(|e| e.into())
inner.shutdown_substream(cx, sub)
}
_ => panic!("Wrong API usage"),
}
Expand All @@ -346,10 +343,10 @@ where
}
}

fn poll_close(&self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
fn poll_close(&self, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
match self {
EitherOutput::First(inner) => inner.poll_close(cx).map_err(|e| e.into()),
EitherOutput::Second(inner) => inner.poll_close(cx).map_err(|e| e.into()),
EitherOutput::First(inner) => inner.poll_close(cx),
EitherOutput::Second(inner) => inner.poll_close(cx),
}
}
}
Expand Down
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