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Take direct control of the tokio runtime 

Since the GTK thread wants to be the main one, it's easier to manually spawn the runtime handlers and to spawn new tasks to handle communication with the core. I added a basic struct to own the runtime, the core, and communication between the core and GTK
This commit is contained in:
Savanni D'Gerinel 2023-03-21 09:17:52 -04:00
parent d86d10428b
commit e1d3a7840d
4 changed files with 288 additions and 60 deletions
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226
kifu/kifu-core/Cargo.lock generated
View File

@ -8,6 +8,33 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"libc",
]
[[package]] [[package]]
name = "kifu-core" name = "kifu-core"
version = "0.1.0" version = "0.1.0"
@ -15,12 +42,157 @@ dependencies = [
"tokio", "tokio",
] ]
[[package]]
name = "libc"
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2
kifu/kifu-core/Cargo.toml
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@ -6,4 +6,4 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
tokio = { version = "1.26", features = [ "sync" ] } tokio = { version = "1.26", features = [ "full" ] }

34
kifu/kifu-core/src/api.rs
View File

@ -16,41 +16,23 @@ pub enum Response {
PlayingFieldView(PlayingFieldView), PlayingFieldView(PlayingFieldView),
} }
fn dispatch(state: Arc<RwLock<AppState>>, request: Request) -> Response { #[derive(Clone)]
match request {
Request::PlayingField => Response::PlayingFieldView(playing_field()),
}
}
pub struct CoreApp { pub struct CoreApp {
request_rx: Receiver<Request>,
response_tx: Sender<Response>,
state: Arc<RwLock<AppState>>, state: Arc<RwLock<AppState>>,
} }
impl CoreApp { impl CoreApp {
pub fn new() -> (Self, Sender<Request>, Receiver<Response>) { pub fn new() -> Self {
let (request_tx, request_rx) = channel(5);
let (response_tx, response_rx) = channel(5);
let state = Arc::new(RwLock::new(AppState::new())); let state = Arc::new(RwLock::new(AppState::new()));
( Self { state }
Self {
request_rx,
response_tx,
state,
},
request_tx,
response_rx,
)
} }
pub async fn run(&mut self) { pub async fn dispatch(&self, request: Request) -> Response {
loop { match request {
let msg = self.request_rx.recv().await.unwrap(); Request::PlayingField => Response::PlayingFieldView(playing_field()),
let resp = dispatch(self.state.clone(), msg);
self.response_tx.send(resp).await.unwrap();
} }
} }
pub async fn run(&self) {}
} }

86
kifu/kifu-gtk/src/main.rs
View File

@ -4,55 +4,75 @@ use std::{
sync::{Arc, Mutex}, sync::{Arc, Mutex},
time::Duration, time::Duration,
}; };
use tokio::sync::mpsc::{Receiver, Sender}; use tokio::{
runtime::Runtime,
sync::mpsc::{Receiver, Sender},
};
#[tokio::main] #[derive(Clone)]
async fn main() { pub struct CoreApi {
let (mut core, request_tx, response_rx) = CoreApp::new(); gtk_tx: gtk::glib::Sender<Response>,
let core_handle = tokio::spawn(async move { rt: Arc<Runtime>,
core.run().await; core: CoreApp,
}
impl CoreApi {
pub fn dispatch(&self, request: Request) {
self.rt.spawn({
let gtk_tx = self.gtk_tx.clone();
let core = self.core.clone();
async move { gtk_tx.send(core.dispatch(request).await) }
});
}
}
fn main() {
let runtime = Arc::new(
tokio::runtime::Builder::new_multi_thread()
.enable_all()
.build()
.unwrap(),
);
let core = CoreApp::new();
let core_handle = runtime.spawn({
let core = core.clone();
async move {
core.run().await;
}
}); });
let gtk_handle = tokio::task::spawn_blocking(move || { let app = gtk::Application::builder()
let app = gtk::Application::builder() .application_id("com.luminescent-dreams.kifu-gtk")
.application_id("com.luminescent-dreams.kifu-gtk") .build();
.build();
let _ = tokio::spawn({ app.connect_activate({
let request_tx = request_tx.clone(); let runtime = runtime.clone();
async move { move |app| {
let _ = request_tx.send(Request::PlayingField).await;
}
});
app.connect_activate(move |app| {
let (gtk_tx, gtk_rx) = let (gtk_tx, gtk_rx) =
gtk::glib::MainContext::channel::<Response>(gtk::glib::PRIORITY_DEFAULT); gtk::glib::MainContext::channel::<Response>(gtk::glib::PRIORITY_DEFAULT);
let _ = tokio::task::spawn(connector(gtk_tx, response_rx)); let api = CoreApi {
gtk_tx,
rt: runtime.clone(),
core: core.clone(),
};
let window = gtk::ApplicationWindow::new(app); let window = gtk::ApplicationWindow::new(app);
window.present(); window.present();
gtk_rx.attach(None, |message| { gtk_rx.attach(None, |message| {
println!("message: {:?}", message); println!("message: {:?}", message);
Continue(true) Continue(true)
}); });
});
println!("running the gtk loop"); api.dispatch(Request::PlayingField);
app.run(); }
}); });
core_handle.await; println!("running the gtk loop");
gtk_handle.await; app.run();
}
async fn connector(gtk_tx: gtk::glib::Sender<Response>, mut response_rx: Receiver<Response>) { let _ = runtime.block_on(async { core_handle.await });
loop {
let msg = response_rx.recv().await;
match msg {
Some(msg) => gtk_tx.send(msg).unwrap(),
None => (),
}
}
} }