mirror of
https://github.com/fluencelabs/rust-libp2p
synced 2025-04-25 11:02:12 +00:00
2c75fbe812
* Adapt examples to async style loop * Adapt async style loop for chat.rs * Adapt async style loop for distributed-key-value-store.rs * Adapt async style loop for gossibsub-chat.rs * Adapt async style loop for ipfs-private.rs * Adapt ping to use async * Update tutorial crate to reflect new changes Co-authored-by: Max Inden <mail@max-inden.de>
85 lines
3.1 KiB
Rust
85 lines
3.1 KiB
Rust
// Copyright 2018 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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//! Ping example
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//!
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//! See ../src/tutorial.rs for a step-by-step guide building the example below.
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//!
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//! In the first terminal window, run:
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//!
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//! ```sh
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//! cargo run --example ping
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//! ```
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//!
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//! It will print the PeerId and the listening addresses, e.g. `Listening on
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//! "/ip4/0.0.0.0/tcp/24915"`
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//!
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//! In the second terminal window, start a new instance of the example with:
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//!
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//! ```sh
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//! cargo run --example ping -- /ip4/127.0.0.1/tcp/24915
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//! ```
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//!
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//! The two nodes establish a connection, negotiate the ping protocol
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//! and begin pinging each other.
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use futures::prelude::*;
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use libp2p::swarm::{Swarm, SwarmEvent};
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use libp2p::{identity, ping, Multiaddr, PeerId};
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use std::error::Error;
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#[async_std::main]
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async fn main() -> Result<(), Box<dyn Error>> {
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let local_key = identity::Keypair::generate_ed25519();
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let local_peer_id = PeerId::from(local_key.public());
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println!("Local peer id: {:?}", local_peer_id);
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let transport = libp2p::development_transport(local_key).await?;
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// Create a ping network behaviour.
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//
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// For illustrative purposes, the ping protocol is configured to
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// keep the connection alive, so a continuous sequence of pings
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// can be observed.
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let behaviour = ping::Behaviour::new(ping::Config::new().with_keep_alive(true));
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let mut swarm = Swarm::new(transport, behaviour, local_peer_id);
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// Tell the swarm to listen on all interfaces and a random, OS-assigned
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// port.
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swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
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// Dial the peer identified by the multi-address given as the second
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// command-line argument, if any.
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if let Some(addr) = std::env::args().nth(1) {
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let remote: Multiaddr = addr.parse()?;
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swarm.dial(remote)?;
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println!("Dialed {}", addr)
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}
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loop {
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match swarm.select_next_some().await {
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SwarmEvent::NewListenAddr { address, .. } => println!("Listening on {:?}", address),
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SwarmEvent::Behaviour(event) => println!("{:?}", event),
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_ => {}
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}
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}
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}
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