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tokio maelstrom server experiment
This commit is contained in:
J. Fernando Sánchez
493
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493
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|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_gnullvm",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||
11
rust/tokiorace/Cargo.toml
Normal file
11
rust/tokiorace/Cargo.toml
Normal file
@@ -0,0 +1,11 @@
|
||||
[package]
|
||||
name = "tokiorace"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
anyhow = "1.0.95"
|
||||
tokio = { version = "1.43.0", features = ["rt", "time", "macros", "rt-multi-thread"] }
|
||||
tokio-test = "0.4.4"
|
||||
tracing = { version = "0.1.41", features = ["attributes"] }
|
||||
tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
|
||||
189
rust/tokiorace/src/main.rs
Normal file
189
rust/tokiorace/src/main.rs
Normal file
@@ -0,0 +1,189 @@
|
||||
use tokio::{
|
||||
task,
|
||||
time::{Duration, sleep},
|
||||
sync::{oneshot,
|
||||
mpsc::{Receiver, Sender, channel}
|
||||
}
|
||||
};
|
||||
use std::collections::{VecDeque, HashMap};
|
||||
use anyhow::Result;
|
||||
use anyhow::{bail, Context};
|
||||
use tracing::{info, debug, instrument, Level};
|
||||
use tracing_subscriber::{fmt, Registry, EnvFilter};
|
||||
use tracing_subscriber::prelude::*;
|
||||
use tracing_subscriber::fmt::format::FmtSpan;
|
||||
use tokio::runtime::Handle;
|
||||
|
||||
struct Service {
|
||||
t: Transport,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Event {
|
||||
id: usize,
|
||||
in_reply_to: Option<usize>,
|
||||
}
|
||||
|
||||
type CB = dyn (FnMut(Event, &mut Transport) -> Result<()>) + Send;
|
||||
|
||||
enum Handler {
|
||||
Callback(Box<CB>),
|
||||
Channel(oneshot::Sender<Event>)
|
||||
}
|
||||
|
||||
struct Transport {
|
||||
msg_id: usize,
|
||||
outbox: Sender<Event>,
|
||||
inbox: Receiver<Option<Event>>,
|
||||
callbacks: HashMap<usize, Handler>,
|
||||
}
|
||||
|
||||
|
||||
impl Transport {
|
||||
fn new() -> (Self, Sender<Option<Event>>, Receiver<Event>) {
|
||||
let (itx, irx) = channel::<Option<Event>>(1);
|
||||
let (otx, orx) = channel::<Event>(1);
|
||||
(Self {
|
||||
msg_id: 0,
|
||||
outbox: otx,
|
||||
inbox: irx,
|
||||
callbacks: Default::default(),
|
||||
}, itx, orx)
|
||||
|
||||
}
|
||||
|
||||
#[instrument(level="debug",skip(self),ret)]
|
||||
fn close(&mut self) -> Result<()> {
|
||||
self.inbox.close();
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[instrument(level="debug",skip(self),ret)]
|
||||
async fn send(&mut self, e: Event) -> Result<()> {
|
||||
self.outbox.send(e).await.context("unable to send message")
|
||||
}
|
||||
#[instrument(level="debug",skip(self),ret)]
|
||||
async fn rpc(&mut self, e: Event) -> Result<Event> {
|
||||
let id = e.id;
|
||||
self.send(e).await?;
|
||||
let (tx, rx) = oneshot::channel();
|
||||
self.callbacks.insert(id, Handler::Channel(tx));
|
||||
let resp = rx.await?;
|
||||
Ok(resp)
|
||||
}
|
||||
|
||||
async fn rpc_callback<C: FnMut(Event, &mut Transport) -> Result<()> + Send + Sized + 'static>(&mut self, e: Event, cb: C) -> Result<()> {
|
||||
self.callbacks.insert(e.id, Handler::Callback(Box::new(cb)));
|
||||
self.send(e).await
|
||||
}
|
||||
|
||||
#[instrument(level="debug",skip(self),ret)]
|
||||
async fn recv(&mut self) -> Result<Option<Event>> {
|
||||
loop {
|
||||
let Some(nxt) = self.inbox.recv().await else {
|
||||
return Ok(None);
|
||||
};
|
||||
let Some(nxt) = nxt else {
|
||||
return Ok(None);
|
||||
};
|
||||
let Some(original) = nxt.in_reply_to else {
|
||||
return Ok(Some(nxt));
|
||||
};
|
||||
match self.callbacks.remove(&nxt.id) {
|
||||
None => {
|
||||
return Ok(Some(nxt));
|
||||
},
|
||||
Some(Handler::Callback(mut cb)) => {
|
||||
cb(nxt, self)?;
|
||||
},
|
||||
Some(Handler::Channel(c)) => {
|
||||
if let Err(e) = c.send(nxt) {
|
||||
bail!("could not send event to callback")
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Service {
|
||||
#[instrument(level="debug", skip(self),ret)]
|
||||
async fn process(&mut self, event: Event) -> Result<()>{
|
||||
let resp = self.t.rpc(Event{id: event.id, in_reply_to: None}).await?;
|
||||
debug!("{:?}", &resp);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[instrument(level="debug", skip(self),ret)]
|
||||
async fn process_nonblocking(&mut self, event: Event) -> Result<()>{
|
||||
let resp = self.t.rpc_callback(Event{id: event.id, in_reply_to: None},
|
||||
|e, svc| {
|
||||
let handle = Handle::current();
|
||||
task::block_in_place(move || {
|
||||
handle.block_on(
|
||||
async move {
|
||||
svc.send(Event{id: 199, in_reply_to: Some(e.id)}).await
|
||||
})
|
||||
})
|
||||
}
|
||||
).await?;
|
||||
debug!("{:?}", &resp);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[instrument(level="debug", skip(self),ret)]
|
||||
async fn serve(mut self) -> Result<()>{
|
||||
while let Some(e) = self.t.recv().await? {
|
||||
self.process_nonblocking(e).await?;
|
||||
}
|
||||
Ok::<(), anyhow::Error>(())
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<()> {
|
||||
tracing_subscriber::registry()
|
||||
.with(fmt::layer())
|
||||
.with(EnvFilter::from_default_env())
|
||||
.init();
|
||||
|
||||
let (t, tx, mut rx) = Transport::new();
|
||||
|
||||
let mut serv = Service{t};
|
||||
|
||||
let tx1 = tx.clone();
|
||||
let s = tokio::spawn(async move {
|
||||
for i in 0..2 {
|
||||
debug!("Sending event {i}");
|
||||
tx1.send(Some(Event{id: i, in_reply_to: None})).await.context("could not send original message")?;
|
||||
}
|
||||
Ok::<(), anyhow::Error>(())
|
||||
});
|
||||
debug!("Serving");
|
||||
let r = tokio::spawn(async move {
|
||||
for i in 0..5 {
|
||||
let Some(msg) = rx.recv().await else {
|
||||
break;
|
||||
};
|
||||
if msg.in_reply_to.is_some() {
|
||||
continue;
|
||||
}
|
||||
sleep(Duration::from_millis(1000)).await;
|
||||
let reply = Event{id: 99, in_reply_to: Some(msg.id)};
|
||||
debug!("Sending reply: {:?}", &reply);
|
||||
tx.send(Some(reply)).await.context("could not send reply")?;
|
||||
}
|
||||
println!("DONE WITH REPLIES");
|
||||
sleep(Duration::from_millis(5000)).await;
|
||||
println!("REALLY DONE WITH REPLIES");
|
||||
tx.send(None).await.context("could not send closing message")?;
|
||||
Ok(())
|
||||
});
|
||||
serv.serve().await?;
|
||||
|
||||
debug!("Served");
|
||||
//serv.close();
|
||||
s.await.context("error joining")??;
|
||||
r.await.context("error joining send")?
|
||||
}
|
||||
Reference in New Issue
Block a user