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Support eager memory deallocation on hibernation #832

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Support eager memory deallocation on hibernation #832

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4ce3b44
support eager memory deallocation on hibernation
guybedford Sep 26, 2025
9eb88e8
simplify
guybedford Sep 26, 2025
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23 changes: 13 additions & 10 deletions worker-build/src/js/shim.js
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Original file line number Diff line number Diff line change
Expand Up @@ -15,35 +15,38 @@ function registerPanicHook() {

registerPanicHook();

let instanceId = 0;
let reinitId = 0;
function checkReinitialize() {
if (panicError) {
console.log("Reinitializing Wasm application");
exports.__wbg_reset_state();
panicError = null;
registerPanicHook();
instanceId++;
reinitId++;
}
}

export default class Entrypoint extends WorkerEntrypoint {
$HANDLERS
}

const instances = new Map();
const classProxyHooks = {
construct(ctor, args, newTarget) {
const instance = {
instance: Reflect.construct(ctor, args, newTarget),
instanceId,
instances.get(ctor)?.free();
const instance = Reflect.construct(ctor, args, newTarget);
instances.set(ctor, instance);
return new Proxy({
instance,
reinitId,
ctor,
args,
newTarget
};
return new Proxy(instance, {
}, {
get(target, prop, receiver) {
if (target.instanceId !== instanceId) {
target.instance = Reflect.construct(target.ctor, target.args, target.newTarget);
target.instanceId = instanceId;
if (target.reinitId !== reinitId) {
instances.set(target.ctor, target.instance = Reflect.construct(target.ctor, target.args, target.newTarget));
target.reinitId = reinitId;
}
return Reflect.get(target.instance, prop, receiver);
}
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