workerhelp/share.js

基于Node.js worker_threads 的轻量级跨线程RPC通信模块，支持主线程与Worker线程之间的异步方法调用。

const { Worker, isMainThread, parentPort, workerData } = require('worker_threads');

if (isMainThread) {
    // 主线程逻辑
    const sharedBuffer = new SharedArrayBuffer(8); // 创建4字节的共享内存
    const array = new BigInt64Array(sharedBuffer);    // 使用32位整数视图
    array[0] = 0n; // 初始值为0

    const numWorkers = 4; // 启动4个Worker线程
    let completedWorkers = 0;

    for (let i = 0; i < numWorkers; i++) {
        new Worker(__filename, {
            workerData: {
                sharedBuffer: sharedBuffer // 传递共享内存
            }
        }).on('message', (msg) => {
            if (msg === 'done') {
                completedWorkers++;
                if (completedWorkers === numWorkers) {
                    console.log('最终结果:', array[0]); // 应为4000000
                }
            }
        });
    }
} else {
    // Worker线程逻辑
    const { sharedBuffer } = workerData;
    const array = new BigInt64Array(sharedBuffer);

    for (let i = 0; i < 1000000; i++) {
        // Atomics.add(array, 0, 1n); // 原子操作递增，每次加1
        Atomics.wait(array, 0, 0n, 100)
        array[0] += 1n; // 非原子操作递增，每次加1
    }

    parentPort.postMessage('done'); // 通知主线程完成
}