Rust + Wasm + Threads
A Field Report
Rust + Wasm + Threads
A Field Report
Our Quirky Wasm + Threads
use case
Rust + Wasm + Threads
A Field Report
1
Rust + Wasm + Threads
A Field Report
Our Quirky Wasm + Threads
use case
2
Hello, I’m Roberto
I work at StackBlitz
Been doing Rust and Wasm for a while
Somewhat involved, pandemic permitting
@_rvidal jrvidal3
StackBlitz
"Online IDE"
- take #1: thin clients
- 👩💻 🪟 . . . . . . .
- take #2: playgrounds
- 👩💻 🪟 . . . . . . 🪟
- take #3: ???
- 👩💻 🪟 . . . . . . 🙃
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it is possible, however unlikely, that
they might find a weakness and exploit it.
xxxxx
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it is possible, however unlikely, that
they might find a weakness and exploit it.
build a full development runtime in the browser.
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it is possible, however unlikely, that
they might find a weakness and exploit it.
build a full development runtime in the browser.
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Possible
Web Workers
SharedArrayBuffer
ServiceWorkers
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Practical
- Restricted to JS code (for now)
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Practical
- Restricted to JS code (for now)
- And, yes… uses WebAssembly
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Field Report
11
Field Report: boring!
thread_local! {
static CWD: RefCell<Cwd> = RefCell::new(Cwd { path: PathBuf::from("/") });
static CONTROLLING_TTY: RefCell<Option<Dirent>> = RefCell::new(None);
}
use parking_lot::Mutex;
use once_cell::sync::Lazy;
static TTY_OUTPUT: Lazy<Mutex<TTYOutputMap>> = Lazy::new(Default::default);12
Field Report: boring!
use wasm_bindgen_futures::spawn_local;
pub fn create_tty(output_callback: js_sys::Function) -> Result<JsValue, JsValue> {
// ...
let output_listener = TTYOutputListener(output_callback);
spawn_local(async move {
output_receiver.receiver
.for_each(|data| {
output_listener.on_message(data);
async {}
})
.await
});
// ...
}
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Try it!
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