source code

libs/parity-tokio-ipc/examples/client.rs

@@ -0,0 +1,24 @@
+use tokio::{self, prelude::*};
+use parity_tokio_ipc::Endpoint;
+
+#[tokio::main]
+async fn main() {
+	let path = std::env::args().nth(1).expect("Run it with server path to connect as argument");
+
+	let mut client = Endpoint::connect(&path).await
+		.expect("Failed to connect client.");
+
+	loop {
+		let mut buf = [0u8; 4];
+		println!("SEND: PING");
+		client.write_all(b"ping").await.expect("Unable to write message to client");
+		client.read_exact(&mut buf[..]).await.expect("Unable to read buffer");
+		if let Ok("pong") = std::str::from_utf8(&buf[..]) {
+			println!("RECEIVED: PONG");
+		} else {
+			break;
+		}
+
+		tokio::time::delay_for(std::time::Duration::from_secs(2)).await;
+	}
+}

libs/parity-tokio-ipc/examples/server.rs

@@ -0,0 +1,47 @@
+use futures::StreamExt as _;
+use tokio::{
+	prelude::*,
+	self,
+	io::split,
+};
+
+use parity_tokio_ipc::{Endpoint, SecurityAttributes};
+
+async fn run_server(path: String) {
+	let mut endpoint = Endpoint::new(path);
+	endpoint.set_security_attributes(SecurityAttributes::allow_everyone_create().unwrap());
+
+	let mut incoming = endpoint.incoming().expect("failed to open new socket");
+
+	while let Some(result) = incoming.next().await
+	{
+		match result {
+			Ok(stream) => {
+				let (mut reader, mut writer) = split(stream);
+
+				tokio::spawn(async move {
+					loop {
+						let mut buf = [0u8; 4];
+						let pong_buf = b"pong";
+						if let Err(_) = reader.read_exact(&mut buf).await {
+							println!("Closing socket");
+							break;
+						}
+						if let Ok("ping") = std::str::from_utf8(&buf[..]) {
+							println!("RECIEVED: PING");
+							writer.write_all(pong_buf).await.expect("unable to write to socket");
+							println!("SEND: PONG");
+						}
+					}
+				});
+			}
+			_ => unreachable!("ideally")
+		}
+	};
+}
+
+#[tokio::main]
+async fn main() {
+	let path = std::env::args().nth(1).expect("Run it with server path as argument");
+	run_server(path).await
+}

libs/parity-tokio-ipc/examples/spam-clients.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+echo "Spawning 100 processes"
+for i in {1..100} ;
+do
+    ( cargo run --example client -- /tmp/test.ipc & )
+done