mirror of
https://github.com/fluencelabs/rust-libp2p
synced 2025-05-12 02:47:15 +00:00
2ad905f35a
Previously `libp2p-swarm` required a `Transport` to be `Clone`. Methods on `Transport`, e.g. `Transport::dial` would take ownership, requiring e.g. a `Clone::clone` before calling `Transport::dial`. The requirement of `Transport` to be `Clone` is no longer needed in `libp2p-swarm`. E.g. concurrent dialing can be done without a clone per dial. This commit removes the requirement of `Clone` for `Transport` in `libp2p-swarm`. As a follow-up methods on `Transport` no longer take ownership, but instead a mutable reference (`&mut self`). On the one hand this simplifies `libp2p-swarm`, on the other it simplifies implementations of `Transport`.
95 lines
3.2 KiB
Rust
95 lines
3.2 KiB
Rust
// Copyright 2019 Parity Technologies (UK) Ltd.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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use futures::{channel::oneshot, prelude::*};
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use libp2p_core::{muxing, upgrade, Transport};
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use libp2p_tcp::TcpConfig;
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use std::sync::Arc;
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#[test]
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fn async_write() {
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// Tests that `AsyncWrite::close` implies flush.
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let (tx, rx) = oneshot::channel();
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let bg_thread = async_std::task::spawn(async move {
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let mplex = libp2p_mplex::MplexConfig::new();
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let mut transport = TcpConfig::new()
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.and_then(move |c, e| upgrade::apply(c, mplex, e, upgrade::Version::V1));
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let mut listener = transport
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.listen_on("/ip4/127.0.0.1/tcp/0".parse().unwrap())
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.unwrap();
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let addr = listener
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.next()
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.await
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.expect("some event")
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.expect("no error")
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.into_new_address()
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.expect("listen address");
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tx.send(addr).unwrap();
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let client = listener
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.next()
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.await
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.unwrap()
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.unwrap()
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.into_upgrade()
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.unwrap()
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.0
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.await
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.unwrap();
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let mut outbound = muxing::outbound_from_ref_and_wrap(Arc::new(client))
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.await
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.unwrap();
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let mut buf = Vec::new();
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outbound.read_to_end(&mut buf).await.unwrap();
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assert_eq!(buf, b"hello world");
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});
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async_std::task::block_on(async {
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let mplex = libp2p_mplex::MplexConfig::new();
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let mut transport = TcpConfig::new()
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.and_then(move |c, e| upgrade::apply(c, mplex, e, upgrade::Version::V1));
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let client = Arc::new(transport.dial(rx.await.unwrap()).unwrap().await.unwrap());
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let mut inbound = loop {
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if let Some(s) = muxing::event_from_ref_and_wrap(client.clone())
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.await
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.unwrap()
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.into_inbound_substream()
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{
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break s;
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}
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};
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inbound.write_all(b"hello world").await.unwrap();
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// The test consists in making sure that this flushes the substream.
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inbound.close().await.unwrap();
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bg_thread.await;
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});
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}
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