Can you share WebAssembly memory between Web Workers?

问题

Is it possible to share WebAssembly.memory between 2 workers by using postMessage, something like SharedArrayBuffer? And if the answer is yes, how?

回答1:

You can create a WebAssembly shared memory instance via the JavaScript API:

const memory = new WebAssembly.Memory({
  initial: 80,
  maximum: 80,
  shared: true
});

You can then send this memory instance to a Web Worker via postMessage:

const worker = new Worker("worker.js");
worker.postMessage({ memory });

The file worker.js can then create a WebAssembly module using this shared memory instance, allowing it to be shared across module instance in different threads.

For a more complete example, see this blog post:

Faster Fractals with Multi-Threaded WebAssembly

来源：https://stackoverflow.com/questions/59818702/can-you-share-webassembly-memory-between-web-workers