SharedArrayBuffers Atomics 拟用于 with WebWorkers ,这是在浏览器上下文中让代码在并发线程中运行的自然方式。

对于节点。在js中,集群包生成的线程确实可以作为共享数据的候选线程,但在编写本文时,确实存在 no implementation of SharedArrayBuffers 在节点中。这是理论。您可能需要浏览关于它的几个讨论:

• Tracking issue: Worker support
• Does NodeJS have any plans for shared memory?
• High level architecture
• Why is it so hard to add threads to nodejs? or web workers?

已经有了 ems 允许在不同线程和进程之间共享数据的包。

相关:

• node-webworker-threads - Lightweight Web Worker API implementation with native threads

对于NodeJ,正式支持SharedArrayBuffer和Array buffer!文件中直接提到了它们 https://nodejs.org/api/worker_threads.html

与child\u进程或集群不同,worker\u线程可以共享内存。他们 ArrayBuffer公司 实例或共享 实例。

共享缓冲区和原子:

https://www.sitepen.com/blog/the-return-of-sharedarraybuffers-and-atomics/

快速片段(来自文章):

// Creating a shared buffer
const length = 10;
 // Get the size we want in bytes for the buffer
const size = Int32Array.BYTES_PER_ELEMENT * length;
 // Create a buffer for 10 integers
const sharedBuffer = new SharedArrayBuffer(size);
const sharedArray = new Int32Array(sharedBuffer);

// main.js
worker.postMessage(sharedBuffer);

该缓冲区允许我们在工作端创建另一个共享阵列:

// worker.js
constsharedArray = new Int32Array(m.data);

检查 标题为一个很好的介绍!(太长,无法在此处定位)。

来自MDN https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Atomics

和

https://blog.logrocket.com/a-complete-guide-to-threads-in-node-js-4fa3898fe74f/

也检查一下:

https://stackoverflow.com/a/51411795/7668448