wilk#42 shared memory support

__tests__/shared.ts

@@ -0,0 +1,21 @@
+import { job, stop, start } from '../src/job'
+
+beforeAll(async () => await start())
+afterAll(async () => await stop())
+
+describe('Job Shared Testing', () => {
+  it('should mutate shared inside job', async () => {
+    const sab = new SharedArrayBuffer(Float64Array.BYTES_PER_ELEMENT)
+    const shared = new Float64Array(sab)
+    shared[0] = 1
+
+    await job(
+      () => {
+        shared[0] = 2
+      },
+      { shared }
+    )
+
+    expect(shared[0]).toEqual(2)
+  })
+})

src/interfaces.ts

@@ -1,8 +1,9 @@
 import { Worker } from 'worker_threads'
 
-export interface Config<T = {}, U = {}> {
+export interface Config<T = {}, U = {}, V = {}> {
   ctx?: T
   data?: U
+  shared?: V
 }
 
 export interface Task {

src/worker-pool.ts

@@ -124,7 +124,7 @@ class WorkerPool {
         this.tick()
       })
 
-      worker.postMessage(workerStr)
+      worker.postMessage({worker: workerStr, shared: config.shared})
     } catch (err) {
       this.free(worker)
       reject(err)

src/worker.ts

@@ -1,7 +1,7 @@
 export const workerFile = `
 const { parentPort } = require('worker_threads')
 
-parentPort.on('message', async worker => {
+parentPort.on('message', async ({worker, shared}) => {
   const response = {
     error: null,
     data: null