1// Copyright (C) 2018 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15import '../gen/all_tracks'; 16import '../common/recordingV2/target_factories'; 17 18import {assertExists, assertTrue} from '../base/logging'; 19 20import {AppController} from './app_controller'; 21import {ControllerAny} from './controller'; 22 23let rootController: ControllerAny; 24let runningControllers = false; 25 26export function initController(extensionPort: MessagePort) { 27 assertTrue(rootController === undefined); 28 rootController = new AppController(extensionPort); 29} 30 31export function runControllers() { 32 if (runningControllers) throw new Error('Re-entrant call detected'); 33 34 // Run controllers locally until all state machines reach quiescence. 35 let runAgain = true; 36 for (let iter = 0; runAgain; iter++) { 37 if (iter > 100) throw new Error('Controllers are stuck in a livelock'); 38 runningControllers = true; 39 try { 40 runAgain = assertExists(rootController).invoke(); 41 } finally { 42 runningControllers = false; 43 } 44 } 45} 46