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.gitignore
vendored
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175
.gitignore
vendored
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|
@ -0,0 +1,175 @@
|
||||||
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# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
|
||||||
|
|
||||||
|
# Logs
|
||||||
|
|
||||||
|
logs
|
||||||
|
_.log
|
||||||
|
npm-debug.log_
|
||||||
|
yarn-debug.log*
|
||||||
|
yarn-error.log*
|
||||||
|
lerna-debug.log*
|
||||||
|
.pnpm-debug.log*
|
||||||
|
|
||||||
|
# Caches
|
||||||
|
|
||||||
|
.cache
|
||||||
|
|
||||||
|
# Diagnostic reports (https://nodejs.org/api/report.html)
|
||||||
|
|
||||||
|
report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
|
||||||
|
|
||||||
|
# Runtime data
|
||||||
|
|
||||||
|
pids
|
||||||
|
_.pid
|
||||||
|
_.seed
|
||||||
|
*.pid.lock
|
||||||
|
|
||||||
|
# Directory for instrumented libs generated by jscoverage/JSCover
|
||||||
|
|
||||||
|
lib-cov
|
||||||
|
|
||||||
|
# Coverage directory used by tools like istanbul
|
||||||
|
|
||||||
|
coverage
|
||||||
|
*.lcov
|
||||||
|
|
||||||
|
# nyc test coverage
|
||||||
|
|
||||||
|
.nyc_output
|
||||||
|
|
||||||
|
# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
|
||||||
|
|
||||||
|
.grunt
|
||||||
|
|
||||||
|
# Bower dependency directory (https://bower.io/)
|
||||||
|
|
||||||
|
bower_components
|
||||||
|
|
||||||
|
# node-waf configuration
|
||||||
|
|
||||||
|
.lock-wscript
|
||||||
|
|
||||||
|
# Compiled binary addons (https://nodejs.org/api/addons.html)
|
||||||
|
|
||||||
|
build/Release
|
||||||
|
|
||||||
|
# Dependency directories
|
||||||
|
|
||||||
|
node_modules/
|
||||||
|
jspm_packages/
|
||||||
|
|
||||||
|
# Snowpack dependency directory (https://snowpack.dev/)
|
||||||
|
|
||||||
|
web_modules/
|
||||||
|
|
||||||
|
# TypeScript cache
|
||||||
|
|
||||||
|
*.tsbuildinfo
|
||||||
|
|
||||||
|
# Optional npm cache directory
|
||||||
|
|
||||||
|
.npm
|
||||||
|
|
||||||
|
# Optional eslint cache
|
||||||
|
|
||||||
|
.eslintcache
|
||||||
|
|
||||||
|
# Optional stylelint cache
|
||||||
|
|
||||||
|
.stylelintcache
|
||||||
|
|
||||||
|
# Microbundle cache
|
||||||
|
|
||||||
|
.rpt2_cache/
|
||||||
|
.rts2_cache_cjs/
|
||||||
|
.rts2_cache_es/
|
||||||
|
.rts2_cache_umd/
|
||||||
|
|
||||||
|
# Optional REPL history
|
||||||
|
|
||||||
|
.node_repl_history
|
||||||
|
|
||||||
|
# Output of 'npm pack'
|
||||||
|
|
||||||
|
*.tgz
|
||||||
|
|
||||||
|
# Yarn Integrity file
|
||||||
|
|
||||||
|
.yarn-integrity
|
||||||
|
|
||||||
|
# dotenv environment variable files
|
||||||
|
|
||||||
|
.env
|
||||||
|
.env.development.local
|
||||||
|
.env.test.local
|
||||||
|
.env.production.local
|
||||||
|
.env.local
|
||||||
|
|
||||||
|
# parcel-bundler cache (https://parceljs.org/)
|
||||||
|
|
||||||
|
.parcel-cache
|
||||||
|
|
||||||
|
# Next.js build output
|
||||||
|
|
||||||
|
.next
|
||||||
|
out
|
||||||
|
|
||||||
|
# Nuxt.js build / generate output
|
||||||
|
|
||||||
|
.nuxt
|
||||||
|
dist
|
||||||
|
|
||||||
|
# Gatsby files
|
||||||
|
|
||||||
|
# Comment in the public line in if your project uses Gatsby and not Next.js
|
||||||
|
|
||||||
|
# https://nextjs.org/blog/next-9-1#public-directory-support
|
||||||
|
|
||||||
|
# public
|
||||||
|
|
||||||
|
# vuepress build output
|
||||||
|
|
||||||
|
.vuepress/dist
|
||||||
|
|
||||||
|
# vuepress v2.x temp and cache directory
|
||||||
|
|
||||||
|
.temp
|
||||||
|
|
||||||
|
# Docusaurus cache and generated files
|
||||||
|
|
||||||
|
.docusaurus
|
||||||
|
|
||||||
|
# Serverless directories
|
||||||
|
|
||||||
|
.serverless/
|
||||||
|
|
||||||
|
# FuseBox cache
|
||||||
|
|
||||||
|
.fusebox/
|
||||||
|
|
||||||
|
# DynamoDB Local files
|
||||||
|
|
||||||
|
.dynamodb/
|
||||||
|
|
||||||
|
# TernJS port file
|
||||||
|
|
||||||
|
.tern-port
|
||||||
|
|
||||||
|
# Stores VSCode versions used for testing VSCode extensions
|
||||||
|
|
||||||
|
.vscode-test
|
||||||
|
|
||||||
|
# yarn v2
|
||||||
|
|
||||||
|
.yarn/cache
|
||||||
|
.yarn/unplugged
|
||||||
|
.yarn/build-state.yml
|
||||||
|
.yarn/install-state.gz
|
||||||
|
.pnp.*
|
||||||
|
|
||||||
|
# IntelliJ based IDEs
|
||||||
|
.idea
|
||||||
|
|
||||||
|
# Finder (MacOS) folder config
|
||||||
|
.DS_Store
|
21
LICENSE
Normal file
21
LICENSE
Normal file
|
@ -0,0 +1,21 @@
|
||||||
|
MIT License
|
||||||
|
|
||||||
|
Copyright (c) 2024 Anton Nesterov
|
||||||
|
|
||||||
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
of this software and associated documentation files (the "Software"), to deal
|
||||||
|
in the Software without restriction, including without limitation the rights
|
||||||
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
copies of the Software, and to permit persons to whom the Software is
|
||||||
|
furnished to do so, subject to the following conditions:
|
||||||
|
|
||||||
|
The above copyright notice and this permission notice shall be included in all
|
||||||
|
copies or substantial portions of the Software.
|
||||||
|
|
||||||
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||||
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||||
|
SOFTWARE.
|
57
README.md
Normal file
57
README.md
Normal file
|
@ -0,0 +1,57 @@
|
||||||
|
# Offload
|
||||||
|
|
||||||
|
Offload cpu-itensive tasks using WebWorkers. Offload creates a limited execution pool and can operate in two modes:
|
||||||
|
- callback mode (default) - spawns web workers on demand when the function is called, self terminated
|
||||||
|
- background - runs workers as backround jobs, distributes load among them, must be terminated manually
|
||||||
|
|
||||||
|
|
||||||
|
*Currently uses unstable api's.*
|
||||||
|
|
||||||
|
To install:
|
||||||
|
|
||||||
|
```bash
|
||||||
|
bun add githib:nesterow/offload # or pnpm
|
||||||
|
```
|
||||||
|
|
||||||
|
## Usage
|
||||||
|
|
||||||
|
Considering following worker:
|
||||||
|
|
||||||
|
```typescript
|
||||||
|
// echo.worker.ts
|
||||||
|
import { handler } from "@nesterow/offload";
|
||||||
|
declare var self: Worker;
|
||||||
|
|
||||||
|
handler(async (data: string) => {
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1000));
|
||||||
|
console.log(data);
|
||||||
|
return true;
|
||||||
|
});
|
||||||
|
```
|
||||||
|
|
||||||
|
In the callback mode, `print()` will spawn a worker and terminate it after the task is done.
|
||||||
|
Maximum of 5 workers may be spawned at the same time, the rest will be queued:
|
||||||
|
|
||||||
|
```typescript
|
||||||
|
import { offload } from "@nesterow/offload";
|
||||||
|
|
||||||
|
const [print, terminate] = offload<boolean, string>("./echo.worker.ts", 5);
|
||||||
|
|
||||||
|
await print("Hello, World!"); // => true
|
||||||
|
```
|
||||||
|
|
||||||
|
In the background mode, offload will spawn 5 workers, `print()` will distribute the tasks among them:
|
||||||
|
|
||||||
|
```typescript
|
||||||
|
import { offload } from "@nesterow/offload";
|
||||||
|
|
||||||
|
const [print, terminate] = offload<boolean, string>("./echo.worker.ts", 5, 'bg');
|
||||||
|
|
||||||
|
await print("Hello, World!"); // => true
|
||||||
|
|
||||||
|
terminate(); // terminate all workers, for example on exit signal
|
||||||
|
```
|
||||||
|
|
||||||
|
## License
|
||||||
|
|
||||||
|
MIT
|
28
__test__/count-primes.worker.ts
Normal file
28
__test__/count-primes.worker.ts
Normal file
|
@ -0,0 +1,28 @@
|
||||||
|
import { handler } from "../mod.ts";
|
||||||
|
|
||||||
|
const isPrime = (n: number) => {
|
||||||
|
let result = true;
|
||||||
|
if (n <= 1) {
|
||||||
|
result = false;
|
||||||
|
} else {
|
||||||
|
for (let i = 2; i * i <= n; i++) {
|
||||||
|
if (n % i === 0) {
|
||||||
|
result = false;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return result;
|
||||||
|
};
|
||||||
|
|
||||||
|
handler((n: number) => {
|
||||||
|
let result = 0;
|
||||||
|
|
||||||
|
for (let i = 0; i < n; i++) {
|
||||||
|
if (isPrime(i)) {
|
||||||
|
result++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return result;
|
||||||
|
});
|
7
__test__/echo-1s.worker.ts
Normal file
7
__test__/echo-1s.worker.ts
Normal file
|
@ -0,0 +1,7 @@
|
||||||
|
import { handler } from "../mod.ts";
|
||||||
|
declare var self: Worker;
|
||||||
|
|
||||||
|
handler(async (data: any) => {
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1000));
|
||||||
|
return data;
|
||||||
|
});
|
70
__test__/offload.test.ts
Normal file
70
__test__/offload.test.ts
Normal file
|
@ -0,0 +1,70 @@
|
||||||
|
import { test, expect } from "bun:test";
|
||||||
|
import { offload } from "../offload";
|
||||||
|
|
||||||
|
test(
|
||||||
|
"count-primes.worker.ts",
|
||||||
|
async () => {
|
||||||
|
const [calculatePrime, terminate] = offload<number, number>(
|
||||||
|
"__test__/count-primes.worker.ts",
|
||||||
|
);
|
||||||
|
const result = await calculatePrime(1000000);
|
||||||
|
expect(result).toBeNumber();
|
||||||
|
},
|
||||||
|
{ timeout: 30000 },
|
||||||
|
);
|
||||||
|
|
||||||
|
test("throw-error.worker.ts", async () => {
|
||||||
|
const [throwError, terminate] = offload<unknown, void>(
|
||||||
|
"__test__/throw-error.worker.ts",
|
||||||
|
);
|
||||||
|
try {
|
||||||
|
const result = await throwError();
|
||||||
|
} catch (e) {
|
||||||
|
expect(e).toBeInstanceOf(Error);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
test("limited queue (size of 3)", async () => {
|
||||||
|
const [echo, terminate] = offload<number, number>(
|
||||||
|
"__test__/echo-1s.worker.ts",
|
||||||
|
3,
|
||||||
|
);
|
||||||
|
const results: number[] = [];
|
||||||
|
for (let i = 0; i < 10; i++) {
|
||||||
|
echo(i).then((e) => results.push(e));
|
||||||
|
}
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1050));
|
||||||
|
expect(results.length).toBe(3);
|
||||||
|
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1050));
|
||||||
|
expect(results.length).toBe(6);
|
||||||
|
console.log("limited queue: Order is not guaranteed:", results);
|
||||||
|
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 2000));
|
||||||
|
expect(results.length).toBe(10);
|
||||||
|
console.log("limited queue: Order is not guaranteed:", results);
|
||||||
|
});
|
||||||
|
|
||||||
|
test(
|
||||||
|
"bg daemons (size of 3)",
|
||||||
|
async () => {
|
||||||
|
const [echo, terminate] = offload<number, number>(
|
||||||
|
"__test__/echo-1s.worker.ts",
|
||||||
|
3,
|
||||||
|
"bg",
|
||||||
|
);
|
||||||
|
const results: number[] = [];
|
||||||
|
for (let i = 0; i < 10; i++) {
|
||||||
|
echo(i).then((e) => results.push(e));
|
||||||
|
}
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1050));
|
||||||
|
expect(results.length).toBeLessThanOrEqual(4);
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 3000));
|
||||||
|
expect(results.length).toBe(10);
|
||||||
|
console.log("bg daemons: Order is not guaranteed:", results);
|
||||||
|
|
||||||
|
console.log("bg daemons: Always terminate background jobs");
|
||||||
|
terminate();
|
||||||
|
},
|
||||||
|
{ timeout: 7000 },
|
||||||
|
);
|
6
__test__/throw-error.worker.ts
Normal file
6
__test__/throw-error.worker.ts
Normal file
|
@ -0,0 +1,6 @@
|
||||||
|
import { handler } from "../mod.ts";
|
||||||
|
|
||||||
|
handler(async () => {
|
||||||
|
await new Promise((resolve) => setTimeout(resolve, 1000));
|
||||||
|
throw new Error("This is an error");
|
||||||
|
});
|
5
jsr.json
Normal file
5
jsr.json
Normal file
|
@ -0,0 +1,5 @@
|
||||||
|
{
|
||||||
|
"name": "@nesterow/offload",
|
||||||
|
"version": "0.0.1",
|
||||||
|
"exports": "./mod.ts"
|
||||||
|
}
|
3
mod.ts
Normal file
3
mod.ts
Normal file
|
@ -0,0 +1,3 @@
|
||||||
|
export * from "./offload.error.ts";
|
||||||
|
export * from "./offload.handler.ts";
|
||||||
|
export * from "./offload.ts";
|
6
offload.error.ts
Normal file
6
offload.error.ts
Normal file
|
@ -0,0 +1,6 @@
|
||||||
|
export class OffloadError extends Error {
|
||||||
|
constructor(message: string, options?: any) {
|
||||||
|
super(message, options);
|
||||||
|
this.name = "OffloadError";
|
||||||
|
}
|
||||||
|
}
|
14
offload.handler.ts
Normal file
14
offload.handler.ts
Normal file
|
@ -0,0 +1,14 @@
|
||||||
|
import type { WorkerResponse, WorkerRequest } from "./offload.interface";
|
||||||
|
|
||||||
|
declare var self: Worker;
|
||||||
|
|
||||||
|
type HandlerCallback<T, E> = ((data: E) => T) | ((data: E) => Awaited<T>);
|
||||||
|
|
||||||
|
export async function handler<T, E>(fn: HandlerCallback<T, E>): Promise<void> {
|
||||||
|
self.addEventListener("message", async (event) => {
|
||||||
|
const request = event.data as WorkerRequest<E>;
|
||||||
|
const result = await fn(request.params);
|
||||||
|
const response: WorkerResponse<T> = { id: request.id, value: result };
|
||||||
|
self.postMessage(response);
|
||||||
|
});
|
||||||
|
}
|
2
offload.interface.ts
Normal file
2
offload.interface.ts
Normal file
|
@ -0,0 +1,2 @@
|
||||||
|
export type WorkerResponse<T> = { id: number; value: T };
|
||||||
|
export type WorkerRequest<T> = { id: number; params: T };
|
168
offload.ts
Normal file
168
offload.ts
Normal file
|
@ -0,0 +1,168 @@
|
||||||
|
import type { WorkerResponse, WorkerRequest } from "./offload.interface";
|
||||||
|
import { OffloadError } from "./offload.error";
|
||||||
|
|
||||||
|
type URLlike = URL | string;
|
||||||
|
type Callback<T, E> = (data: E) => Promise<T>;
|
||||||
|
type Terminator = () => void; // 🦾
|
||||||
|
type Id = number;
|
||||||
|
type PromiseTable = Map<
|
||||||
|
Id,
|
||||||
|
{ resolve: (value: any) => void; reject: (reason: unknown) => void }
|
||||||
|
>;
|
||||||
|
type TaskCallback<T, E> = ((data: E) => Promise<T>) & { [workerId]: Worker };
|
||||||
|
type WorkerTasks = Map<Worker, PromiseTable>;
|
||||||
|
|
||||||
|
const workerId = Symbol("workerId");
|
||||||
|
const workerTasks: WorkerTasks = new Map();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* OffloadMode
|
||||||
|
* 'cb' - (default) callback mode, spawns a worker on call and terminates it upon completion
|
||||||
|
* 'bg' - runs a max number of workers of poolSize constantly in background, balances callbacks among them
|
||||||
|
*/
|
||||||
|
export type OffloadMode = "cb" | "bg";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* offload - offload a tasks to a worker
|
||||||
|
*/
|
||||||
|
export function offload<Return, Param>(
|
||||||
|
url: URLlike,
|
||||||
|
poolSize = 1,
|
||||||
|
mode: OffloadMode = "cb",
|
||||||
|
): [Callback<Return, Param>, Terminator] {
|
||||||
|
switch (mode) {
|
||||||
|
case "bg":
|
||||||
|
return createPooledCallback(poolSize, () => {
|
||||||
|
const bg = withMessageInterceptor(new Worker(url.toString()));
|
||||||
|
const bgcb = createTaskCallback<Return, Param>(bg);
|
||||||
|
return bgcb;
|
||||||
|
});
|
||||||
|
default:
|
||||||
|
return createBufferedCallback(poolSize, () => {
|
||||||
|
const worker = withMessageInterceptor(new Worker(url.toString()));
|
||||||
|
const cb = createTaskCallback<Return, Param>(worker, () => {
|
||||||
|
worker.terminate();
|
||||||
|
});
|
||||||
|
return cb;
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function createTaskCallback<T, E>(
|
||||||
|
worker: Worker,
|
||||||
|
eof?: () => void,
|
||||||
|
): TaskCallback<T, E> {
|
||||||
|
const cb = async function (data: E): Promise<T> {
|
||||||
|
const id = createTaskId();
|
||||||
|
worker.addEventListener(
|
||||||
|
"error",
|
||||||
|
(event) => {
|
||||||
|
const error = event.message;
|
||||||
|
workerTasks.get(worker)?.get(id)?.reject(new OffloadError(error, id));
|
||||||
|
workerTasks.get(worker)?.delete(id);
|
||||||
|
},
|
||||||
|
{ once: true },
|
||||||
|
);
|
||||||
|
const workerTask = Promise.withResolvers<T>();
|
||||||
|
workerTasks.get(worker)?.set(id, workerTask);
|
||||||
|
const request: WorkerRequest<E> = { id, params: data };
|
||||||
|
worker.postMessage(request);
|
||||||
|
try {
|
||||||
|
const result = await workerTask.promise;
|
||||||
|
workerTasks.get(worker)?.delete(id);
|
||||||
|
if (eof) eof();
|
||||||
|
return result;
|
||||||
|
} catch (error) {
|
||||||
|
workerTasks.get(worker)?.delete(id);
|
||||||
|
if (eof) eof();
|
||||||
|
throw error;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
cb[workerId] = worker;
|
||||||
|
return cb;
|
||||||
|
}
|
||||||
|
|
||||||
|
export function createBufferedCallback<T, E>(
|
||||||
|
bufSize: number,
|
||||||
|
fun: () => TaskCallback<T, E>,
|
||||||
|
): [Callback<T, E>, Terminator] {
|
||||||
|
let free = bufSize;
|
||||||
|
const waitFree = async () => {
|
||||||
|
if (free <= 0) {
|
||||||
|
await new Promise((resolve) => setTimeout(resolve));
|
||||||
|
return await waitFree();
|
||||||
|
}
|
||||||
|
};
|
||||||
|
const spots: TaskCallback<T, E>[] = [];
|
||||||
|
const term = () => {
|
||||||
|
for (const cb of spots) {
|
||||||
|
if (cb) terminate(cb);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
const call = async (data: E) => {
|
||||||
|
if (free <= 0) await waitFree();
|
||||||
|
--free;
|
||||||
|
const cb = fun();
|
||||||
|
spots[free] = cb;
|
||||||
|
const result = await cb(data);
|
||||||
|
delete spots[free];
|
||||||
|
free++;
|
||||||
|
return result;
|
||||||
|
};
|
||||||
|
return [call, term];
|
||||||
|
}
|
||||||
|
|
||||||
|
export function createPooledCallback<T, E>(
|
||||||
|
poolSize: number,
|
||||||
|
fun: () => TaskCallback<T, E>,
|
||||||
|
): [Callback<T, E>, Terminator] {
|
||||||
|
let free = poolSize;
|
||||||
|
const waitFree = async () => {
|
||||||
|
if (free <= 0) {
|
||||||
|
await new Promise((resolve) => setTimeout(resolve));
|
||||||
|
return await waitFree();
|
||||||
|
}
|
||||||
|
};
|
||||||
|
const spots: TaskCallback<T, E>[] = [];
|
||||||
|
for (let i = 0; i < poolSize; i++) {
|
||||||
|
spots[i] = fun();
|
||||||
|
}
|
||||||
|
const term = () => {
|
||||||
|
for (const cb of spots) {
|
||||||
|
terminate(cb);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
const call = async (data: E) => {
|
||||||
|
if (free <= 0) await waitFree();
|
||||||
|
--free;
|
||||||
|
const cb = spots[0];
|
||||||
|
const result = await cb(data);
|
||||||
|
free++;
|
||||||
|
return result;
|
||||||
|
};
|
||||||
|
return [call, term];
|
||||||
|
}
|
||||||
|
|
||||||
|
function useWorker<T, E>(cb: TaskCallback<T, E>): Worker {
|
||||||
|
return cb[workerId];
|
||||||
|
}
|
||||||
|
|
||||||
|
function terminate<T, E>(cb: TaskCallback<T, E>): void {
|
||||||
|
const worker = useWorker(cb);
|
||||||
|
worker.terminate();
|
||||||
|
}
|
||||||
|
|
||||||
|
function createTaskId(): Id {
|
||||||
|
return Math.floor(Math.random() * Number.MAX_SAFE_INTEGER);
|
||||||
|
}
|
||||||
|
|
||||||
|
function withMessageInterceptor(worker: Worker): Worker {
|
||||||
|
const promiseTable: PromiseTable = new Map();
|
||||||
|
workerTasks.set(worker, promiseTable);
|
||||||
|
worker.addEventListener("message", (event) => {
|
||||||
|
const { id, value } = event.data as WorkerResponse<unknown>;
|
||||||
|
promiseTable.get(id)?.resolve(value);
|
||||||
|
promiseTable.delete(id);
|
||||||
|
});
|
||||||
|
return worker;
|
||||||
|
}
|
13
package.json
Normal file
13
package.json
Normal file
|
@ -0,0 +1,13 @@
|
||||||
|
{
|
||||||
|
"name": "@nesterow/offload",
|
||||||
|
"version": "0.0.1",
|
||||||
|
"description": "Offload heavy tasks to a separate thread using workers",
|
||||||
|
"module": "offload.ts",
|
||||||
|
"type": "module",
|
||||||
|
"devDependencies": {
|
||||||
|
"@types/bun": "latest"
|
||||||
|
},
|
||||||
|
"peerDependencies": {
|
||||||
|
"typescript": "^5.0.0"
|
||||||
|
}
|
||||||
|
}
|
27
tsconfig.json
Normal file
27
tsconfig.json
Normal file
|
@ -0,0 +1,27 @@
|
||||||
|
{
|
||||||
|
"compilerOptions": {
|
||||||
|
// Enable latest features
|
||||||
|
"lib": ["ESNext", "DOM"],
|
||||||
|
"target": "ESNext",
|
||||||
|
"module": "ESNext",
|
||||||
|
"moduleDetection": "force",
|
||||||
|
"jsx": "react-jsx",
|
||||||
|
"allowJs": true,
|
||||||
|
|
||||||
|
// Bundler mode
|
||||||
|
"moduleResolution": "bundler",
|
||||||
|
"allowImportingTsExtensions": true,
|
||||||
|
"verbatimModuleSyntax": true,
|
||||||
|
"noEmit": true,
|
||||||
|
|
||||||
|
// Best practices
|
||||||
|
"strict": true,
|
||||||
|
"skipLibCheck": true,
|
||||||
|
"noFallthroughCasesInSwitch": true,
|
||||||
|
|
||||||
|
// Some stricter flags (disabled by default)
|
||||||
|
"noUnusedLocals": false,
|
||||||
|
"noUnusedParameters": false,
|
||||||
|
"noPropertyAccessFromIndexSignature": false
|
||||||
|
}
|
||||||
|
}
|
Loading…
Reference in a new issue