| // Copyright (C) 2021 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // This file defines the API of messages exchanged between frontend and |
| // {engine, controller} worker when bootstrapping the workers. |
| // Those messages are sent only once. The rest of the communication happens |
| // over the MessagePort(s) that are sent in the init message. |
| |
| // This is so we can create all the workers in a central place in the frontend |
| // (Safari still doesn't spawning workers from other workers) but then let them |
| // communicate by sending the right MessagePort to them. |
| |
| // Frontend -> Engine initialization message. |
| export interface EngineWorkerInitMessage { |
| // The port used to receive engine messages (e.g., query commands). |
| // The controller owns the other end of the MessageChannel |
| // (see resetEngineWorker()). |
| enginePort: MessagePort; |
| } |
