workerize-transferable


> Helper functions for workerlize-loader to support transferables.

Install

``sh
npm i -D workerize-loader
npm i -S @naoak/workerize-transferable
`

$3

worker.js:

`js
import { setupTransferableMethodsOnWorker } from "@naoak/workerize-transferable";

export function increment(buffer) {
buffer[0] += 1;
return buffer;
}

setupTransferableMethodsOnWorker({
// the name of function which use some transferables
increment: {
// specify an instance of the function
fn: increment,
// pick a transferable object from the result which is an instance of Int32Array
pickTransferablesFromResult: (result) => [result.buffer],
},
});
`

index.js:

`js
import worker from "workerize-loader!./worker";
import { setupTransferableMethodsOnMain } from "@naoak/workerize-transferable";

let instance = worker(); // new is optional

setupTransferableMethodsOnMain({
// worker instance
instance,
// the name of method which use some transferables
increment: {
// pick a transferable object from the method parameters
pickTransferablesFromParams: (params) => [params[0].buffer],
},
});

(async () => {
const buffer = new Int32Array([0]);
const res = await instance.increment(await instance.increment(buffer));
console.log(buffer.length); // 0
console.log(res.length); // 1
console.log(res[0]); // 2
})();
``

See workerize-loader for details how to setup workerize-loader.