network chunk v18

User/package.json

@@ -6,10 +6,10 @@
   "scripts": {
     "clean": "del-cli dist && del-cli out",
     "build-dist": "tsc && copyfiles -u 1 'src/**/*' dist",
-    "start-dev": "tsc && copyfiles -u 1 'src/**/*' dist && electron dist/main/main.js",
+    "start-dev": "tsc && copyfiles -u 1 'src/**/*' dist && electron dist/main/main.js -- --expose-gc",
-    "start": "npm run clean && npm run build-dist && electron-forge start",
+    "start": "npm run clean && npm run build-dist && electron-forge start -- --expose-gc",
-    "package": "npm run clean && npm run build-dist && electron-forge package",
+    "package": "npm run clean && npm run build-dist && electron-forge package -- --expose-gc",
-    "make": "npm run clean && npm run build-dist && electron-forge make"
+    "make": "npm run clean && npm run build-dist && electron-forge make -- --expose-gc"
   },
   "main": "dist/main/main.js",
   "author": "Cerbu Andrei - Mihnea",

User/src/helpers/backup_manager.ts

@@ -5,7 +5,6 @@ import { MemoryManager } from './memory_manager';
 import { JsonManager } from './json_manager';
 import { TcpCommunicator } from './tcp_communicator';
 import { operationCodes } from '../network/operation_codes';
-import { parentPort } from 'worker_threads';
 import { ParsedMessage } from "../network/message_handler";
 
 export class BackupManager {
@@ -143,9 +142,9 @@ export class BackupManager {
         }
 
         if (unsentFiles.length > 0) {
-            parentPort?.postMessage({ success: false, message: 'Backup could not be completed for all files', unsentFiles });
+            process.send?.({type: 'log', message: 'Backup could not be completed for all files'});
         } else {
-            parentPort?.postMessage({ success: true, message: 'Backup completed successfully' });
+            process.send?.({type: 'log', message: 'Backup completed successfully' });
         }
     }
 

User/src/helpers/backup_retrieval.ts

@@ -1,7 +1,6 @@
 import { JsonManager } from './json_manager';
 import { TcpCommunicator } from "./tcp_communicator";
 import { operationCodes } from '../network/operation_codes';
-import { parentPort } from 'worker_threads';
 import path from 'path';
 import fs from 'fs';
 import crypto from 'crypto';
@@ -62,10 +61,10 @@ export class BackupRetrievalWorker {
                 this.log(`Backup retrieved successfully from ${ip}`);
             }
 
-            parentPort?.postMessage({ success: true, message: 'Backup retrieval completed successfully.' });
+            process.send?.({ type: 'log', message: 'Backup retrieval completed successfully.' });
         } catch (error: any) {
             this.log(`Error in BackupRetrievalWorker: ${error.message}`, 'error');
-            parentPort?.postMessage({ success: false, message: `A problem occurred: ${error.message}` });
+            process.send?.({ type: 'log', message: `A problem occurred: ${error.message}` });
         }
 
         if (global.gc) {

User/src/helpers/network_scanner.ts

@@ -1,6 +1,5 @@
 import {JsonManager} from "./json_manager";
 import {UdpClient} from "../network/udp/udp_client";
-import {parentPort} from "worker_threads";
 import {TcpCommunicator} from "./tcp_communicator";
 import {operationCodes} from "../network/operation_codes";
 import {ParsedMessage} from "../network/message_handler";
@@ -65,19 +64,19 @@ export class NetworkScanner {
                     if (!storedIp || storedIp !== ipAddress) {
                         await this.applicationInfo.writeValue('serverIp', ipAddress);
                         if (!this.appStarted) {
-                            parentPort?.postMessage({ type: 'changeContent', page: this.okPage });
+                            process.send?.({ type: 'changeContent', page: this.okPage });
                         }
                         this.appStarted = true;
                     } else if (!this.appStarted) {
-                        parentPort?.postMessage({ type: 'changeContent', page: this.okPage });
+                        process.send?.({ type: 'changeContent', page: this.okPage });
                         this.appStarted = true;
                     }
                 } else {
-                    parentPort?.postMessage({ type: 'changeContent', page: this.errorPage });
+                    process.send?.({ type: 'changeContent', page: this.errorPage });
                 }
             } catch (err) {
                 this.log(`Error checking UC: ${err}`, 'error', 'startUCCheck');
-                parentPort?.postMessage({ type: 'changeContent', page: this.errorPage });
+                process.send?.({ type: 'changeContent', page: this.errorPage });
             } finally {
                 this.ucCheckBusy = false;
             }
@@ -152,7 +151,7 @@ export class NetworkScanner {
                 if (response?.operationCode !== operationCodes.OK) {
                     await this.userConfig.resetFile();
                     await this.userConfig.writeValue('app_type', app_type);
-                    parentPort?.postMessage({ type: 'changeContent', page: this.databaseResetPage });
+                    process.send?.({ type: 'changeContent', page: this.databaseResetPage });
                 }
             } catch (err) {
                 this.log(`Error during login request: ${err}`, 'error', 'sendLoginRequest');

User/src/helpers/worker_manager.ts

@@ -1,174 +1,97 @@
-import { Worker } from 'worker_threads';
+import { fork, ChildProcess } from 'child_process';
 import path from 'path';
-import {WindowManager} from "./window_manager";
+import { WindowManager } from "./window_manager";
 
 export class WorkerManager {
     private readonly pathToWorkerDir: string;
-    private windowManager: WindowManager
+    private windowManager: WindowManager;
-    private workers: Worker[]; // Array to store running workers
+    private workers: ChildProcess[]; // Array to store running child processes
 
     constructor(pathToWorkerDir: string, windowManager: WindowManager) {
         this.pathToWorkerDir = pathToWorkerDir;
         this.windowManager = windowManager;
-        this.workers = []; // Initialize the array to store workers
+        this.workers = []; // Initialize the array to store child processes
     }
 
     async startNetworkScannerWorker(udpPort: number, tcpPort: number, okPage: string, errorPage: string, databaseResetPage: string, userConfigPath: string, applicationInfoPath: string): Promise<void> {
+        return this.startForkedWorker('network_scanner_worker.js', {
+            UDP_PORT: udpPort.toString(),
+            TCP_PORT: tcpPort.toString(),
+            OK_PAGE: okPage,
+            ERROR_PAGE: errorPage,
+            DATABASE_RESET_PAGE: databaseResetPage,
+            USER_CONFIG_PATH: userConfigPath,
+            APPLICATION_INFO_PATH: applicationInfoPath
+        });
+    }
+
+    async startDirectoriesWatchersWorker(memoryManagerPath: string, applicationInfoPath: string): Promise<void> {
+        return this.startForkedWorker('directories_watcher_worker.js', {
+            MEMORY_MANAGER_PATH: memoryManagerPath,
+            APPLICATION_INFO_PATH: applicationInfoPath
+        });
+    }
+
+    async startServersWorker(host: string, udpPort: number, tcpPort: number): Promise<void> {
+        return this.startForkedWorker('servers_worker.js', {
+            HOST: host,
+            USER_UDP_PORT: udpPort.toString(),
+            USER_TCP_PORT: tcpPort.toString()
+        });
+    }
+
+    async startResourceCoordinatorWorker(usersConfigPath: string, applicationInfoPath: string, memoryManagerPath: string, queueManagerPath: string, tcpPort: number): Promise<void> {
+        return this.startForkedWorker('resource_coordinator_worker.js', {
+            USERS_CONFIG_PATH: usersConfigPath,
+            APPLICATION_INFO_PATH: applicationInfoPath,
+            MEMORY_MANAGER_PATH: memoryManagerPath,
+            QUEUE_MANAGER_PATH: queueManagerPath,
+            TCP_PORT: tcpPort.toString()
+        });
+    }
+
+    async startBackupRetrievalWorker(userConfigPath: string, applicationInfoPath: string, clientPort: number, destinationPath: string): Promise<void> {
+        return this.startForkedWorker('backup_retrieval_worker.js', {
+            USER_CONFIG_PATH: userConfigPath,
+            APPLICATION_INFO_PATH: applicationInfoPath,
+            CLIENT_PORT: clientPort.toString(),
+            DESTINATION_PATH: destinationPath
+        });
+    }
+
+    private async startForkedWorker(scriptName: string, envData: { [key: string]: string }): Promise<void> {
         return new Promise((resolve, reject) => {
-            const worker = new Worker(path.join(this.pathToWorkerDir, 'network_scanner_worker.js', ), {
+            const worker = fork(path.join(this.pathToWorkerDir, scriptName), {
-                execArgv: ['--max-old-space-size=4096'],
+                execArgv: ['--max-old-space-size=4096'], // Set memory limit for the forked process
-                workerData: { udpPort, tcpPort, okPage, errorPage, databaseResetPage, userConfigPath, applicationInfoPath }, // Pass necessary data to the worker
+                env: { ...process.env, ...envData } // Merge environment variables
             });
 
             this.workers.push(worker); // Store the worker reference
 
-            worker.on('message', (data) => {
+            worker.on('message', (data: unknown) => {
-                if (data.type === 'changeContent') {
+                const message = data as { type: string, page?: string, message?: string }; // Type casting for message
-                    this.windowManager.changeContent(data.page);
+
+                if (message.type === 'changeContent' && message.page) {
+                    this.windowManager.changeContent(message.page);
+                } else if (message.type === 'showAlert' && message.message) {
+                    this.windowManager.showAlert(message.message);
+                } else {
+                    console.log(`${scriptName} message:`, message);
                 }
             });
 
             worker.on('error', (err) => {
-                console.error('Network Scanner Worker error:', err);
+                console.error(`${scriptName} error:`, err);
-                worker.terminate();
+                worker.kill();
                 this.removeWorker(worker);
-                reject(err); // Reject the promise if there's an error
+                reject(err);
             });
 
             worker.on('exit', (code) => {
-                console.log(`Network Scanner Worker exited with code ${code}`);
+                console.log(`${scriptName} exited with code ${code}`);
-                this.removeWorker(worker); // Remove worker reference when it exits
-                resolve(); // Resolve when the worker exits cleanly
-            });
-        });
-    }
-
-    // Start the Directories Watcher Worker
-    async startDirectoriesWatchersWorker(memoryManagerPath: string, applicationInfoPath: string): Promise<void> {
-        return new Promise((resolve, reject) => {
-            const worker = new Worker(path.join(this.pathToWorkerDir, 'directories_watcher_worker.js'), {
-                execArgv: ['--max-old-space-size=4096'],
-                workerData: { memoryManagerPath, applicationInfoPath },  // Pass the port to the worker
-            });
-
-            this.workers.push(worker); // Store the worker reference
-
-            worker.on('message', (data) => {
-                console.log('DirectoriesWatcher message:', data);
-            });
-
-            worker.on('error', (err) => {
-                console.error('DirectoriesWatcher error:', err);
-                worker.terminate();
                 this.removeWorker(worker);
-                reject(err); // Reject the promise if there's an error
+                if (code === 0) resolve();
-            });
+                else reject(new Error(`${scriptName} exited with code ${code}`));
-
-            worker.on('exit', (code) => {
-                console.log(`DirectoriesWatcher exited with code ${code}`);
-                this.removeWorker(worker); // Remove worker reference when it exits
-                resolve(); // Resolve when the worker exits cleanly
-            });
-        });
-    }
-
-    // Start the Servers Worker (UDP and TCP servers)
-    async startServersWorker(host: string, udpPort: number, tcpPort: number): Promise<void> {
-        return new Promise((resolve, reject) => {
-            const worker = new Worker(path.join(this.pathToWorkerDir, 'servers_worker.js'), {
-                execArgv: ['--max-old-space-size=4096'],
-                workerData: { HOST: host, USER_UDP_PORT: udpPort, USER_TCP_PORT: tcpPort },  // Pass host and ports to the worker
-            });
-
-            this.workers.push(worker); // Store the worker reference
-
-            worker.on('message', (data) => {
-                console.log('Servers Worker message:', data);
-            });
-
-            worker.on('error', (err) => {
-                console.error('Servers Worker error:', err);
-                worker.terminate();
-                this.removeWorker(worker);
-                reject(err); // Reject the promise if there's an error
-            });
-
-            worker.on('exit', (code) => {
-                console.log(`Servers Worker exited with code ${code}`);
-                this.removeWorker(worker); // Remove worker reference when it exits
-                resolve(); // Resolve when the worker exits cleanly
-            });
-        });
-    }
-
-    // Start the Users Info Worker
-    async startResourceCoordinatorWorker(usersConfigPath: string, applicationInfoPath: string, memoryManagerPath: string, queueManagerPath: string, tcpPort: number): Promise<void> {
-        return new Promise((resolve, reject) => {
-            const worker = new Worker(path.join(this.pathToWorkerDir, 'resource_coordinator_worker.js'), {
-                execArgv: ['--max-old-space-size=4096'],
-                workerData: {
-                    usersConfigPath,
-                    applicationInfoPath,
-                    memoryManagerPath,
-                    queueManagerPath,
-                    tcpPort
-                }, // Pass necessary parameters to the worker
-            });
-
-            this.workers.push(worker); // Store the worker reference
-
-            worker.on('message', (data) => {
-                console.log('Users Info Worker message:', data);
-            });
-
-            worker.on('error', (err) => {
-                console.error('Users Info Worker error:', err);
-                worker.terminate();
-                this.removeWorker(worker);
-                reject(err); // Reject the promise if there's an error
-            });
-
-            worker.on('exit', (code) => {
-                console.log(`Users Info Worker exited with code ${code}`);
-                this.removeWorker(worker); // Remove worker reference when it exits
-                resolve(); // Resolve when the worker exits cleanly
-            });
-        });
-    }
-
-    // Start the Backup Retrieval Worker
-    async startBackupRetrievalWorker(
-        userConfigPath: string,
-        applicationInfoPath: string,
-        clientPort: number,
-        destinationPath: string
-    ): Promise<void> {
-        return new Promise(async (resolve, reject) => {
-            const worker = new Worker(path.join(this.pathToWorkerDir, 'backup_retrieval_worker.js'), {
-                execArgv: ['--max-old-space-size=4096'],
-                workerData: { userConfigPath, applicationInfoPath, clientPort, destinationPath },  // Pass parameters to the worker
-            });
-
-            this.workers.push(worker); // Store the worker reference
-
-            worker.on('message', async (data) => {
-                console.log('Backup Retrieval Worker message:', data);
-                await new Promise((resolve) => setTimeout(resolve, 3000)); // Wait for 1 second
-                await this.windowManager.changeContent('main_menu');
-                await this.windowManager.showAlert(data.message);
-            });
-
-            worker.on('error', (err) => {
-                console.error('Backup Retrieval Worker error:', err);
-                worker.terminate();
-                this.removeWorker(worker);
-                reject(err); // Reject the promise if there's an error
-            });
-
-            worker.on('exit', (code) => {
-                console.log(`Backup Retrieval Worker exited with code ${code}`);
-                this.removeWorker(worker); // Remove worker reference when it exits
-                resolve(); // Resolve when the worker exits cleanly
             });
         });
     }
@@ -176,15 +99,15 @@ export class WorkerManager {
     // Close all running workers
     closeAllWorkers(): void {
         console.log('Terminating all running workers...');
-        this.workers.forEach(worker => worker.terminate()); // Terminate each worker
+        this.workers.forEach(worker => worker.kill());
-        this.workers = []; // Clear the array after terminating all workers
+        this.workers = [];
     }
 
     // Helper method to remove a worker from the workers array when it exits
-    private removeWorker(worker: Worker): void {
+    private removeWorker(worker: ChildProcess): void {
         const index = this.workers.indexOf(worker);
         if (index > -1) {
-            this.workers.splice(index, 1); // Remove the worker from the array
+            this.workers.splice(index, 1);
         }
     }
 }

User/src/interfaces/worker_message.ts

@@ -0,0 +1,6 @@
+// Define a type for the message structure
+interface WorkerMessage {
+    type: 'changeContent' | 'showAlert' | 'log';
+    page?: string;
+    message?: string;
+}

User/src/workers/backup_retrieval_worker.ts

@@ -1,18 +1,20 @@
-import { workerData, parentPort } from 'worker_threads';
+import { BackupRetrievalWorker } from '../helpers/backup_retrieval';
-import { BackupRetrievalWorker} from '../helpers/backup_retrieval'; // Assuming the class is in the same folder
+import dotenv from 'dotenv';
 
-// Destructure the data passed from the WorkerManager
+// Load environment variables from .env file if it exists
-const {
+dotenv.config();
-    userConfigPath,
+
-    applicationInfoPath,
+// Retrieve configuration from environment variables
-    clientPort,
+const userConfigPath = process.env.USER_CONFIG_PATH as string;
-    destinationPath
+const applicationInfoPath = process.env.APPLICATION_INFO_PATH as string;
-}: {
+const clientPort = Number(process.env.CLIENT_PORT);
-    userConfigPath: string,
+const destinationPath = process.env.DESTINATION_PATH as string;
-    applicationInfoPath: string,
+
-    clientPort: number,
+// Validate that all required environment variables are present
-    destinationPath: string
+if (!userConfigPath || !applicationInfoPath || !clientPort || !destinationPath) {
-} = workerData;
+    console.error('Error: Missing required environment variables.');
+    process.exit(1);
+}
 
 // Initialize the BackupRetrievalWorker
 const backupRetrievalWorker = new BackupRetrievalWorker(

User/src/workers/directories_watcher_worker.ts

@@ -1,11 +1,20 @@
-import {DirectoryWatcher} from "../helpers/directory_watcher";
+import { DirectoryWatcher } from "../helpers/directory_watcher";
-import {workerData} from "worker_threads";
+import dotenv from 'dotenv';
 
-const {
+// Load environment variables from .env file if it exists
-    memoryManagerPath,
+dotenv.config();
-    applicationInfoPath,
-} = workerData;
 
+// Retrieve configuration from environment variables
+const memoryManagerPath = process.env.MEMORY_MANAGER_PATH as string;
+const applicationInfoPath = process.env.APPLICATION_INFO_PATH as string;
+
+// Validate that all required environment variables are present
+if (!memoryManagerPath || !applicationInfoPath) {
+    console.error('Error: Missing required environment variables.');
+    process.exit(1);
+}
+
+// Initialize and start DirectoryWatcher instances
 const backupDirectoryManager = new DirectoryWatcher(memoryManagerPath, applicationInfoPath, 'backupDirectory');
 backupDirectoryManager.start();
 
@@ -14,4 +23,3 @@ departmentShareManager.start();
 
 const shareFileManager = new DirectoryWatcher(memoryManagerPath, applicationInfoPath, 'shareDirectory');
 shareFileManager.start();
-

User/src/workers/network_scanner_worker.ts

@@ -1,19 +1,22 @@
-import { parentPort, workerData } from 'worker_threads';
+import { parentPort } from 'worker_threads';
 import { NetworkScanner } from '../helpers/network_scanner';
 
-// Define the structure of workerData
+// Extract data from environment variables
-interface WorkerData {
+const udpPort = parseInt(process.env.UDP_PORT || '0', 10);
-    udpPort: number;
+const tcpPort = parseInt(process.env.TCP_PORT || '0', 10);
-    tcpPort: number;
+const okPage = process.env.OK_PAGE || '';
-    okPage: string;
+const errorPage = process.env.ERROR_PAGE || '';
-    errorPage: string;
+const databaseResetPage = process.env.DATABASE_RESET_PAGE || '';
-    databaseResetPage: string;
+const userConfigPath = process.env.USER_CONFIG_PATH || '';
-    userConfigPath: string;
+const applicationInfoPath = process.env.APPLICATION_INFO_PATH || '';
-    applicationInfoPath: string;
-}
-
-// Extract the data passed to the worker
-const { udpPort, tcpPort, okPage, errorPage, databaseResetPage, userConfigPath, applicationInfoPath }: WorkerData = workerData;
 
 // Start the NetworkScanner instance
-const networkScanner = new NetworkScanner(applicationInfoPath, userConfigPath, udpPort, tcpPort, okPage, errorPage, databaseResetPage);
+const networkScanner = new NetworkScanner(
+    applicationInfoPath,
+    userConfigPath,
+    udpPort,
+    tcpPort,
+    okPage,
+    errorPage,
+    databaseResetPage
+);

User/src/workers/resource_coordinator_worker.ts

@@ -1,11 +1,14 @@
-import { workerData } from 'worker_threads';
 import { UsersInfoFetcher } from '../helpers/users_info_fetcher';
-import {BackupManager} from "../helpers/backup_manager";
+import { BackupManager } from '../helpers/backup_manager';
-import {FileSharer} from "../helpers/file_sharer";
+import { FileSharer } from '../helpers/file_sharer';
-import {DepartmentSharer} from "../helpers/department_sharer";
+import { DepartmentSharer } from '../helpers/department_sharer';
 
-// Destructure the required information from workerData
+// Retrieve data from environment variables
-const { usersConfigPath, applicationInfoPath, memoryManagerPath, queueManagerPath, tcpPort } = workerData;
+const usersConfigPath = process.env.USERS_CONFIG_PATH || '';
+const applicationInfoPath = process.env.APPLICATION_INFO_PATH || '';
+const memoryManagerPath = process.env.MEMORY_MANAGER_PATH || '';
+const queueManagerPath = process.env.QUEUE_MANAGER_PATH || '';
+const tcpPort = parseInt(process.env.TCP_PORT || '0', 10);
 
 const usersInfoFetcher = new UsersInfoFetcher(applicationInfoPath, memoryManagerPath, tcpPort);
 usersInfoFetcher.start();
@@ -16,7 +19,5 @@ backupManager.start();
 const fileSharer = new FileSharer(queueManagerPath, tcpPort);
 fileSharer.start();
 
-
 const departmentSharer = new DepartmentSharer(usersConfigPath, applicationInfoPath, memoryManagerPath, tcpPort);
 departmentSharer.start();
-

User/src/workers/servers_worker.ts

@@ -1,12 +1,15 @@
-import {UdpServer} from "../network/udp/udp_server";
+import { UdpServer } from "../network/udp/udp_server";
-import {TcpServer} from "../network/tcp/tcp_server";
+import { TcpServer } from "../network/tcp/tcp_server";
-import {workerData} from "worker_threads";
 
 let udpServer: UdpServer | null = null;
 let tcpServer: TcpServer | null = null;
 
-const {USER_UDP_PORT, USER_TCP_PORT, HOST} = workerData;
+// Retrieve data from environment variables
+const USER_UDP_PORT = parseInt(process.env.USER_UDP_PORT || '0', 10);
+const USER_TCP_PORT = parseInt(process.env.USER_TCP_PORT || '0', 10);
+const HOST = process.env.HOST || '';
 
+// Initialize and start the servers
 udpServer = new UdpServer(HOST, USER_UDP_PORT);
 udpServer.start();