refactor: use kill handler in examples
[poolifier.git] / examples / typescript / http-server-pool / fastify-hybrid / src / fastify-poolifier.ts
1 import type { TransferListItem } from 'worker_threads'
2 import { DynamicThreadPool, availableParallelism } from 'poolifier'
3 import { type FastifyPluginCallback } from 'fastify'
4 import fp from 'fastify-plugin'
5 import {
6 type FastifyPoolifierOptions,
7 type ThreadWorkerData,
8 type ThreadWorkerResponse
9 } from './types.js'
10
11 const fastifyPoolifierPlugin: FastifyPluginCallback<FastifyPoolifierOptions> = (
12 fastify,
13 options,
14 done
15 ) => {
16 options = {
17 ...{
18 minWorkers: 1,
19 maxWorkers: availableParallelism()
20 },
21 ...options
22 }
23 const pool = new DynamicThreadPool<ThreadWorkerData, ThreadWorkerResponse>(
24 options.minWorkers as number,
25 options.maxWorkers as number,
26 options.workerFile,
27 options
28 )
29 if (!fastify.hasDecorator('pool')) {
30 fastify.decorate('pool', pool)
31 }
32 if (!fastify.hasDecorator('execute')) {
33 fastify.decorate(
34 'execute',
35 async (
36 data?: ThreadWorkerData,
37 name?: string,
38 transferList?: TransferListItem[]
39 ): Promise<ThreadWorkerResponse> =>
40 await pool.execute(data, name, transferList)
41 )
42 }
43 if (!fastify.hasDecorator('listTaskFunctions')) {
44 fastify.decorate('listTaskFunctions', (): string[] =>
45 pool.listTaskFunctions()
46 )
47 }
48 done()
49 }
50
51 export const fastifyPoolifier = fp(fastifyPoolifierPlugin, {
52 fastify: '4.x',
53 name: 'fastify-poolifier'
54 })