Attempt to dbg restart and run all cells

Author: malcolm-sparkfun

kernel/src/index.ts

@@ -4,6 +4,10 @@ import { IKernel, IKernelSpecs } from '@jupyterlite/kernel';
 import { EmbeddedKernel } from './kernel';
 import WelcomePanel from './panel';
 import { ServiceContainer } from './services/ServiceContainer';
+import { DeviceService } from './services/DeviceService';
+
+// Variable for saving the DeviceService instance so we can restore it if kernel is restarted 
+var devService: DeviceService | null = null;
 
 // Kernel plugin for the embedded kernel
 const kernelPlugin: JupyterLiteServerPlugin<void> = {
@@ -39,11 +43,14 @@ const kernelPlugin: JupyterLiteServerPlugin<void> = {
         },
       },
       create: async (options: IKernel.IOptions): Promise<IKernel> => {
-        
+
         console.log("CREATED NEW EMBEDDED KERNEL...")
-        const serviceContainer = new ServiceContainer()
+        const serviceContainer = new ServiceContainer(devService);
         await serviceContainer.init();
 
+        // Save the DeviceService instance so we can restore it if kernel is restarted
+        devService = serviceContainer.deviceService;
+
         const welcomePanel = new WelcomePanel(serviceContainer);
         document.body.appendChild(welcomePanel.getElement());
         const kernel = new EmbeddedKernel(options, serviceContainer);

kernel/src/services/ServiceContainer.ts

@@ -10,8 +10,9 @@ export class ServiceContainer {
   private _firmwareService: FirmwareService;
   private _flashService: FlashService;
 
-  constructor() {
-    this._deviceService = new DeviceService();
+  constructor(devService?: DeviceService | null) {
+    // If a DeviceService instance is passed (and is not null), use it; otherwise, create a new one.
+    this._deviceService = devService || new DeviceService();
     this._consoleService = new ConsoleService(this._deviceService);
     this._firmwareService = new FirmwareService(this._deviceService);