enhance daemon lifecycle logic like connect ensurance

This commit is contained in:
geekgeekrun
2026-01-17 11:34:28 +08:00
parent 199a472ec3
commit a05c73cbdf
9 changed files with 149 additions and 388 deletions
+28 -5
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@@ -28,6 +28,9 @@ const net = require('net');
const { spawn } = require('child_process');
const path = require('path');
const split2 = require('split2');
const fs = require('fs')
const ipcWritePipe = fs.createWriteStream(null, { fd: 3 })
const PORT = 12345;
const workers = new Map(); // workerId -> { process, status, restartCount, socket, latestScreenshot, latestScreenshotAt }
@@ -88,6 +91,13 @@ const server = net.createServer((socket) => {
function handleMessage(socket, message) {
console.log('收到消息:', message);
const _callbackUuid = message._callbackUuid
if (message.type === 'ping') {
sendResponse(socket, _callbackUuid, {
success: true,
message: 'pong'
});
return
}
// 工具进程注册消息
if (message.type === 'worker-register') {
@@ -214,9 +224,8 @@ function handleMessage(socket, message) {
case 'get-status':
const status = getWorkersStatus();
sendResponse(socket, _callbackUuid, {
sendResponse(socket, _callbackUuid, {
success: true,
type: 'status',
workers: status
});
break;
@@ -442,9 +451,23 @@ function sendResponse(socket, _callbackUuid, response) {
}
// 启动服务器
server.listen(PORT, () => {
console.log(`守护进程服务器运行在端口 ${PORT}`);
});
new Promise((resolve, reject) => {
server.once('error', (err) => {
ipcWritePipe.write(
JSON.stringify({ type: 'DAEMON_FATAL', error: err }),
(err) => void err
)
reject(err)
})
server.listen(PORT, () => {
console.log(`守护进程服务器运行在端口 ${PORT}`);
ipcWritePipe.write(
JSON.stringify({ type: 'DAEMON_READY' }),
(err) => void err
)
resolve(true)
});
})
// 优雅关闭
process.on('SIGTERM', () => {
-244
View File
@@ -1,244 +0,0 @@
// 如果是通过 Electron 运行,禁用 GUI 和 Dock 图标
if (typeof require !== 'undefined') {
try {
const { app } = require('electron');
if (app) {
// 隐藏 Dock 图标(macOS
if (process.platform === 'darwin') {
app.dock?.hide();
}
// 防止显示窗口
app.on('ready', () => {
// 不创建任何窗口,保持后台运行
});
// 防止在没有窗口时退出
app.on('window-all-closed', (e) => {
e.preventDefault();
// 不退出应用,保持后台运行
});
}
} catch (e) {
// 不在 Electron 环境中,忽略
}
}
// 工具进程示例
const net = require('net');
const split2 = require('split2');
// 解析命令行参数
let workerId = 'unknown';
let restartCount = 0;
for (let i = 2; i < process.argv.length; i++) {
const arg = process.argv[i];
if (arg.startsWith('--worker-id=')) {
workerId = arg.split('=')[1] || 'unknown';
} else if (arg.startsWith('--restart-count=')) {
restartCount = parseInt(arg.split('=')[1] || '0', 10);
}
}
console.log(`工具进程 ${workerId} 已启动 (PID: ${process.pid})${restartCount > 0 ? `,这是第${restartCount}次重启` : ''}`);
const DAEMON_PORT = 12345;
let daemonSocket = null;
let reconnectTimer = null;
let isShuttingDown = false;
// 连接到守护进程
function connectToDaemon() {
if (isShuttingDown) return;
daemonSocket = new net.Socket();
daemonSocket.connect(DAEMON_PORT, 'localhost', () => {
console.log(`[工具进程 ${workerId}] 已连接到守护进程`);
// 注册工具进程连接
sendToDaemon({
type: 'worker-register',
workerId: workerId
});
// 连接成功后立即检查是否应该退出
setTimeout(() => {
checkShouldIExit();
}, 500);
});
// 使用 split2 按行分割流式数据,处理 JSONL 格式(每行一个 JSON
// split2 会自动处理 TCP 分包问题,确保每条完整的消息(以换行符结尾)才会触发
const splitStream = split2();
daemonSocket.pipe(splitStream).on('data', (line) => {
const trimmedLine = line.toString().trim();
if (!trimmedLine) {
return; // 跳过空行
}
try {
const message = JSON.parse(trimmedLine);
handleDaemonMessage(message);
} catch (parseError) {
console.error(`[工具进程 ${workerId}] 解析JSON消息失败:`, parseError.message);
console.error('原始数据:', trimmedLine.substring(0, 100)); // 只打印前100个字符
}
});
splitStream.on('error', (err) => {
console.error(`[工具进程 ${workerId}] split2 流处理错误:`, err);
});
daemonSocket.on('error', (err) => {
console.error(`[工具进程 ${workerId}] 守护进程连接错误:`, err.message);
daemonSocket = null;
// 尝试重连(如果不是正在关闭)
if (!isShuttingDown) {
if (reconnectTimer) clearTimeout(reconnectTimer);
reconnectTimer = setTimeout(() => {
console.log(`[工具进程 ${workerId}] 尝试重新连接守护进程...`);
connectToDaemon();
}, 2000);
}
});
daemonSocket.on('close', () => {
console.log(`[工具进程 ${workerId}] 守护进程连接已关闭`);
daemonSocket = null;
// 尝试重连(如果不是正在关闭)
if (!isShuttingDown) {
if (reconnectTimer) clearTimeout(reconnectTimer);
reconnectTimer = setTimeout(() => {
console.log(`[工具进程 ${workerId}] 尝试重新连接守护进程...`);
connectToDaemon();
}, 2000);
}
});
}
// 发送消息到守护进程
function sendToDaemon(message) {
if (daemonSocket && !daemonSocket.destroyed) {
try {
daemonSocket.write(JSON.stringify(message) + '\n');
} catch (e) {
console.error(`[工具进程 ${workerId}] 发送消息失败:`, e);
}
} else {
console.warn(`[工具进程 ${workerId}] 守护进程未连接,消息已丢弃:`, message.type);
}
}
// 处理守护进程消息
function handleDaemonMessage(message) {
if (message.type === 'worker-registered') {
console.log(`[工具进程 ${workerId}] 连接已注册到守护进程`);
} else if (message.type === 'check-should-exit') {
// 处理是否应该退出的查询响应
if (message.shouldExit) {
console.log(`[工具进程 ${workerId}] 守护进程指示应该退出,正在退出...`);
shutdown();
}
} else if (message.error) {
console.error(`[工具进程 ${workerId}] 守护进程错误:`, message.error);
// 如果守护进程要求退出(例如:已被标记为停止)
if (message.shouldExit) {
console.log(`[工具进程 ${workerId}] 守护进程要求退出,正在退出...`);
shutdown();
}
}
}
// 检查是否应该退出
function checkShouldIExit() {
if (isShuttingDown) return;
if (!daemonSocket || daemonSocket.destroyed) {
// 如果守护进程未连接,暂时不检查,等待重连
return;
}
sendToDaemon({
type: 'check-should-exit',
workerId: workerId
});
}
// 初始连接
connectToDaemon();
// 模拟工作负载
let counter = 0;
const interval = setInterval(() => {
counter++;
console.log(`[工具进程 ${workerId}] 运行中... 计数: ${counter}`);
// 发送工作数据到守护进程
sendToDaemon({
type: 'worker-data',
workerId: workerId,
data: {
counter: counter,
timestamp: Date.now(),
message: `工具进程 ${workerId} 工作数据`
}
});
// 模拟随机错误(用于测试自动重启功能)
// 取消下面的注释来测试自动重启
// if (Math.random() < 0.001) {
// console.error(`[工具进程 ${workerId}] 模拟错误,退出`);
// process.exit(1);
// }
}, 2000);
// 处理退出信号
function shutdown() {
if (isShuttingDown) return;
isShuttingDown = true;
clearInterval(interval);
if (reconnectTimer) clearTimeout(reconnectTimer);
if (daemonSocket && !daemonSocket.destroyed) {
daemonSocket.destroy();
}
console.log(`[工具进程 ${workerId}] 正在退出...`);
process.exit(0);
}
process.on('SIGTERM', () => {
console.log(`[工具进程 ${workerId}] 收到SIGTERM信号,正在退出...`);
shutdown();
});
process.on('SIGINT', () => {
console.log(`[工具进程 ${workerId}] 收到SIGINT信号,正在退出...`);
shutdown();
});
// 处理未捕获的异常
process.on('uncaughtException', (error) => {
console.error(`[工具进程 ${workerId}] 未捕获的异常:`, error);
clearInterval(interval);
if (daemonSocket && !daemonSocket.destroyed) {
daemonSocket.destroy();
}
process.exit(1);
});
// 定期发送心跳到守护进程,并检查是否应该退出
setInterval(() => {
sendToDaemon({
type: 'worker-heartbeat',
workerId: workerId,
timestamp: Date.now()
});
// 每次心跳时也检查是否应该退出
checkShouldIExit();
}, 5000);