network-performance-monitor/dist/src/pidfile.js

A comprehensive network performance monitoring tool that continuously tests and tracks your network's performance over time

"use strict";
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
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});
var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
exports.PidFile = void 0;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const config_1 = require("./config");
class PidFile {
    pidPath;
    constructor() {
        this.ensureDirectoryExists();
        this.pidPath = path.join(config_1.config.pid.directory, config_1.config.pid.filename);
    }
    ensureDirectoryExists() {
        if (!fs.existsSync(config_1.config.pid.directory)) {
            fs.mkdirSync(config_1.config.pid.directory, { recursive: true });
        }
    }
    write() {
        const pid = process.pid;
        fs.writeFileSync(this.pidPath, pid.toString());
    }
    read() {
        try {
            const pidStr = fs.readFileSync(this.pidPath, 'utf-8');
            return parseInt(pidStr, 10);
        }
        catch (error) {
            return null;
        }
    }
    remove() {
        try {
            fs.unlinkSync(this.pidPath);
        }
        catch (error) {
            // Ignore error if file doesn't exist
        }
    }
    isProcessRunning(pid) {
        try {
            // Send signal 0 to check if process exists
            process.kill(pid, 0);
            return true;
        }
        catch (error) {
            return false;
        }
    }
    isDaemonRunning() {
        const pid = this.read();
        if (pid === null) {
            return false;
        }
        return this.isProcessRunning(pid);
    }
    exists() {
        return fs.existsSync(this.pidPath);
    }
}
exports.PidFile = PidFile;
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