@litert/televoke
Version:
A simple RPC service framework.
94 lines • 3.05 kB
JavaScript
;
/**
* Copyright 2025 Angus.Fenying <fenying@litert.org>
*
* 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
*
* https://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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.createMainThreadGateway = createMainThreadGateway;
exports.createWorkerThreadGateway = createWorkerThreadGateway;
const NodeWorker = require("node:worker_threads");
const cWT = require("./WorkerThread.Constants");
const node_events_1 = require("node:events");
const WorkerThread_Transporter_1 = require("./WorkerThread.Transporter");
const eWT = require("./WorkerThread.Errors");
const VOID_OK_PROMISE = Promise.resolve();
class MainThreadGateway extends node_events_1.EventEmitter {
constructor(_server) {
super();
this._server = _server;
}
get running() {
return true;
}
start() {
return VOID_OK_PROMISE;
}
stop() {
return VOID_OK_PROMISE;
}
registerWorker(worker) {
if (worker?.threadId === -1) {
throw new eWT.E_WORKER_THREAD_OFFLINE();
}
this._server.registerChannel(new WorkerThread_Transporter_1.MainThreadTransporter(cWT.MAIN_THREAD_PROTOCOL_NAME, worker));
}
}
class WorkerThreadGateway extends node_events_1.EventEmitter {
constructor(_server) {
super();
this._server = _server;
this._transporter = null;
}
get running() {
return !!this._transporter;
}
start() {
if (this._transporter) {
return VOID_OK_PROMISE;
}
this._server.registerChannel(this._transporter = new WorkerThread_Transporter_1.WorkerThreadTransporter(cWT.WORKER_THREAD_PROTOCOL_NAME));
return VOID_OK_PROMISE;
}
stop() {
this._transporter?.end();
this._transporter = null;
return VOID_OK_PROMISE;
}
}
/**
* Create a gateway that runs in the main thread.
*
* @param server The server instance.
* @experimental
*/
function createMainThreadGateway(server) {
if (!NodeWorker.isMainThread) {
throw new eWT.E_MAIN_THREAD_ONLY();
}
return new MainThreadGateway(server);
}
let workerThreadGateway = null;
/**
* Create a gateway that runs in the worker thread.
*
* @param server The server instance.
* @experimental
*/
function createWorkerThreadGateway(server) {
if (NodeWorker.isMainThread) {
throw new eWT.E_WORKER_THREAD_ONLY();
}
return workerThreadGateway ?? (workerThreadGateway = new WorkerThreadGateway(server));
}
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