启动 HTTP 服务器集群

import { serve } from "bun";

const id = Math.random().toString(36).slice(2);

serve({
  port: process.env.PORT || 8080,
  development: false,

  // 多个进程共享同一端口
  // 这是关键部分！
  reusePort: true,

  async fetch(request) {
    return new Response("来自 Bun #" + id + " 的问候！\n");
  },
});

import { spawn } from "bun";

const cpus = navigator.hardwareConcurrency; // CPU 核心数
const buns = new Array(cpus);

for (let i = 0; i < cpus; i++) {
  buns[i] = spawn({
    cmd: ["bun", "./server.ts"],
    stdout: "inherit",
    stderr: "inherit",
    stdin: "inherit",
  });
}

function kill() {
  for (const bun of buns) {
    bun.kill();
  }
}

process.on("SIGINT", kill);
process.on("exit", kill);