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refactor: use @emnapi/wasi-threads as dep
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,144 +1,41 @@ | ||
| import { | ||
| MessageHandler as WASIThreadsMessageHandler, | ||
| type HandleOptions, | ||
| type OnLoadData | ||
| } from '@emnapi/wasi-threads' | ||
| import type { NapiModule } from './emnapi/index' | ||
| import type { InstantiatedSource } from './load' | ||
|
|
||
| /** @public */ | ||
| export interface OnLoadData { | ||
| wasmModule: WebAssembly.Module | ||
| wasmMemory: WebAssembly.Memory | ||
| } | ||
| export type { HandleOptions, OnLoadData } | ||
|
|
||
| /** @public */ | ||
| export interface HandleOptions { | ||
| onLoad (data: OnLoadData): InstantiatedSource | Promise<InstantiatedSource> | ||
| } | ||
|
|
||
| /** @public */ | ||
| export class MessageHandler { | ||
| onLoad: (data: OnLoadData) => InstantiatedSource | Promise<InstantiatedSource> | ||
| instance: WebAssembly.Instance | undefined | ||
| // module: WebAssembly.Module | undefined | ||
| export class MessageHandler extends WASIThreadsMessageHandler { | ||
| napiModule: NapiModule | undefined | ||
| messagesBeforeLoad: any[] | ||
|
|
||
| constructor (options: HandleOptions) { | ||
| const onLoad = options.onLoad | ||
| if (typeof onLoad !== 'function') { | ||
| throw new TypeError('options.onLoad is not a function') | ||
| } | ||
| this.onLoad = onLoad | ||
| this.instance = undefined | ||
| // this.module = undefined | ||
| super(options) | ||
| this.napiModule = undefined | ||
| this.messagesBeforeLoad = [] | ||
| } | ||
|
|
||
| handle (e: any): void { | ||
| public override handle (e: any): void { | ||
| super.handle(e) | ||
| if (e?.data?.__emnapi__) { | ||
| const type = e.data.__emnapi__.type | ||
| const payload = e.data.__emnapi__.payload | ||
|
|
||
| const onLoad = this.onLoad | ||
| if (type === 'load') { | ||
| if (this.instance !== undefined) return | ||
| let source: InstantiatedSource | Promise<InstantiatedSource> | ||
| try { | ||
| source = onLoad(payload) | ||
| } catch (err) { | ||
| onLoaded.call(this, err, null, payload) | ||
| return | ||
| } | ||
| const then = source && 'then' in source ? source.then : undefined | ||
| if (typeof then === 'function') { | ||
| // eslint-disable-next-line @typescript-eslint/no-floating-promises | ||
| then.call( | ||
| source, | ||
| (source) => { onLoaded.call(this, null, source, payload) }, | ||
| (err) => { onLoaded.call(this, err, null, payload) } | ||
| ) | ||
| } else { | ||
| onLoaded.call(this, null, source as InstantiatedSource, payload) | ||
| } | ||
| } else if (type === 'start') { | ||
| handleAfterLoad.call(this, e, () => { | ||
| notifyPthreadCreateResult(payload.sab, 1) | ||
| this.napiModule!.startThread(payload.tid, payload.arg) | ||
| }) | ||
| } else if (type === 'async-worker-init') { | ||
| handleAfterLoad.call(this, e, () => { | ||
| if (type === 'async-worker-init') { | ||
| this.handleAfterLoad(e, () => { | ||
| this.napiModule!.initWorker(payload.arg) | ||
| }) | ||
| } else if (type === 'async-work-execute') { | ||
| handleAfterLoad.call(this, e, () => { | ||
| this.handleAfterLoad(e, () => { | ||
| this.napiModule!.executeAsyncWork(payload.work) | ||
| }) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| function handleAfterLoad (this: MessageHandler, e: any, f: (e: any) => void): void { | ||
| if (this.instance !== undefined) { | ||
| f.call(this, e) | ||
| } else { | ||
| this.messagesBeforeLoad.push(e.data) | ||
| } | ||
| } | ||
|
|
||
| interface LoadPayload { | ||
| wasmModule: WebAssembly.Module | ||
| wasmMemory: WebAssembly.Memory | ||
| sab?: Int32Array | ||
| } | ||
|
|
||
| function notifyPthreadCreateResult (sab: Int32Array | undefined, result: number): void { | ||
| if (sab) { | ||
| Atomics.store(sab, 0, result) | ||
| Atomics.notify(sab, 0) | ||
| } | ||
| } | ||
|
|
||
| function onLoaded (this: MessageHandler, err: Error | null, source: InstantiatedSource | null, payload: LoadPayload): void { | ||
| if (err) { | ||
| notifyPthreadCreateResult(payload.sab, 2) | ||
| throw err | ||
| } | ||
|
|
||
| if (source == null) { | ||
| notifyPthreadCreateResult(payload.sab, 2) | ||
| throw new TypeError('onLoad should return an object') | ||
| } | ||
|
|
||
| const instance = source.instance | ||
| const napiModule = source.napiModule | ||
|
|
||
| if (!instance) { | ||
| notifyPthreadCreateResult(payload.sab, 2) | ||
| throw new TypeError('onLoad should return an object which includes "instance"') | ||
| } | ||
| if (!napiModule) { | ||
| notifyPthreadCreateResult(payload.sab, 2) | ||
| throw new TypeError('onLoad should return an object which includes "napiModule"') | ||
| } | ||
| if (!napiModule.childThread) { | ||
| notifyPthreadCreateResult(payload.sab, 2) | ||
| throw new Error('napiModule should be created with `childThread: true`') | ||
| } | ||
|
|
||
| this.instance = instance | ||
| this.napiModule = napiModule | ||
|
|
||
| const postMessage = napiModule.postMessage! | ||
| postMessage({ | ||
| __emnapi__: { | ||
| type: 'loaded', | ||
| payload: {} | ||
| } | ||
| }) | ||
|
|
||
| const messages = this.messagesBeforeLoad | ||
| this.messagesBeforeLoad = [] | ||
| for (let i = 0; i < messages.length; i++) { | ||
| const data = messages[i] | ||
| this.handle({ data }) | ||
| protected override onLoadSuccess (source: InstantiatedSource): void { | ||
| this.napiModule = source.napiModule | ||
| } | ||
| } |
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