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| </pre><pre class="rust"><code><span class="kw">use super</span>::{Connected, Server}; |
| <span class="kw">use </span><span class="kw">crate</span>::transport::service::ServerIo; |
| <span class="kw">use </span>futures_core::Stream; |
| <span class="kw">use </span>futures_util::stream::TryStreamExt; |
| <span class="kw">use </span>hyper::server::{ |
| accept::Accept, |
| conn::{AddrIncoming, AddrStream}, |
| }; |
| <span class="kw">use </span>std::{ |
| net::SocketAddr, |
| pin::Pin, |
| task::{Context, Poll}, |
| time::Duration, |
| }; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite}; |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"tls"</span>))] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>tcp_incoming<IO, IE, L>( |
| incoming: <span class="kw">impl </span>Stream<Item = <span class="prelude-ty">Result</span><IO, IE>>, |
| _server: Server<L>, |
| ) -> <span class="kw">impl </span>Stream<Item = <span class="prelude-ty">Result</span><ServerIo<IO>, <span class="kw">crate</span>::Error>> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Connected + Unpin + Send + <span class="lifetime">'static</span>, |
| IE: Into<<span class="kw">crate</span>::Error>, |
| { |
| <span class="macro">async_stream::try_stream! </span>{ |
| <span class="macro">futures_util::pin_mut!</span>(incoming); |
| |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(stream) = incoming.try_next().<span class="kw">await</span><span class="question-mark">? </span>{ |
| <span class="kw">yield </span>ServerIo::new_io(stream); |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"tls"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>tcp_incoming<IO, IE, L>( |
| incoming: <span class="kw">impl </span>Stream<Item = <span class="prelude-ty">Result</span><IO, IE>>, |
| server: Server<L>, |
| ) -> <span class="kw">impl </span>Stream<Item = <span class="prelude-ty">Result</span><ServerIo<IO>, <span class="kw">crate</span>::Error>> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Connected + Unpin + Send + <span class="lifetime">'static</span>, |
| IE: Into<<span class="kw">crate</span>::Error>, |
| { |
| <span class="macro">async_stream::try_stream! </span>{ |
| <span class="macro">futures_util::pin_mut!</span>(incoming); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"tls"</span>)] |
| </span><span class="kw">let </span><span class="kw-2">mut </span>tasks = futures_util::stream::futures_unordered::FuturesUnordered::new(); |
| |
| <span class="kw">loop </span>{ |
| <span class="kw">match </span>select(<span class="kw-2">&mut </span>incoming, <span class="kw-2">&mut </span>tasks).<span class="kw">await </span>{ |
| SelectOutput::Incoming(stream) => { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(tls) = <span class="kw-2">&</span>server.tls { |
| <span class="kw">let </span>tls = tls.clone(); |
| |
| <span class="kw">let </span>accept = tokio::spawn(<span class="kw">async move </span>{ |
| <span class="kw">let </span>io = tls.accept(stream).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(ServerIo::new_tls_io(io)) |
| }); |
| |
| tasks.push(accept); |
| } <span class="kw">else </span>{ |
| <span class="kw">yield </span>ServerIo::new_io(stream); |
| } |
| } |
| |
| SelectOutput::Io(io) => { |
| <span class="kw">yield </span>io; |
| } |
| |
| SelectOutput::Err(e) => { |
| <span class="macro">tracing::debug!</span>(message = <span class="string">"Accept loop error."</span>, error = %e); |
| } |
| |
| SelectOutput::Done => { |
| <span class="kw">break</span>; |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"tls"</span>)] |
| </span><span class="kw">async fn </span>select<IO, IE>( |
| incoming: <span class="kw-2">&mut </span>(<span class="kw">impl </span>Stream<Item = <span class="prelude-ty">Result</span><IO, IE>> + Unpin), |
| tasks: <span class="kw-2">&mut </span>futures_util::stream::futures_unordered::FuturesUnordered< |
| tokio::task::JoinHandle<<span class="prelude-ty">Result</span><ServerIo<IO>, <span class="kw">crate</span>::Error>>, |
| >, |
| ) -> SelectOutput<IO> |
| <span class="kw">where |
| </span>IE: Into<<span class="kw">crate</span>::Error>, |
| { |
| <span class="kw">use </span>futures_util::StreamExt; |
| |
| <span class="kw">if </span>tasks.is_empty() { |
| <span class="kw">return match </span>incoming.try_next().<span class="kw">await </span>{ |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(stream)) => SelectOutput::Incoming(stream), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) => SelectOutput::Done, |
| <span class="prelude-val">Err</span>(e) => SelectOutput::Err(e.into()), |
| }; |
| } |
| |
| <span class="macro">tokio::select! </span>{ |
| stream = incoming.try_next() => { |
| <span class="kw">match </span>stream { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(stream)) => SelectOutput::Incoming(stream), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) => SelectOutput::Done, |
| <span class="prelude-val">Err</span>(e) => SelectOutput::Err(e.into()), |
| } |
| } |
| |
| accept = tasks.next() => { |
| <span class="kw">match </span>accept.expect(<span class="string">"FuturesUnordered stream should never end"</span>) { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Ok</span>(io)) => SelectOutput::Io(io), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Err</span>(e)) => SelectOutput::Err(e), |
| <span class="prelude-val">Err</span>(e) => SelectOutput::Err(e.into()), |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"tls"</span>)] |
| </span><span class="kw">enum </span>SelectOutput<A> { |
| Incoming(A), |
| Io(ServerIo<A>), |
| <span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error), |
| Done, |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>TcpIncoming { |
| inner: AddrIncoming, |
| } |
| |
| <span class="kw">impl </span>TcpIncoming { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new( |
| addr: SocketAddr, |
| nodelay: bool, |
| keepalive: <span class="prelude-ty">Option</span><Duration>, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, <span class="kw">crate</span>::Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>inner = AddrIncoming::bind(<span class="kw-2">&</span>addr)<span class="question-mark">?</span>; |
| inner.set_nodelay(nodelay); |
| inner.set_keepalive(keepalive); |
| <span class="prelude-val">Ok</span>(TcpIncoming { inner }) |
| } |
| } |
| |
| <span class="kw">impl </span>Stream <span class="kw">for </span>TcpIncoming { |
| <span class="kw">type </span>Item = <span class="prelude-ty">Result</span><AddrStream, std::io::Error>; |
| |
| <span class="kw">fn </span>poll_next(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="prelude-ty">Option</span><<span class="self">Self</span>::Item>> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).poll_accept(cx) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="tonic" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
