network-performance-monitor/dist/pidfile.js

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

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