Marc Mintel
5397309103
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39 lines
1.1 KiB
Plaintext
39 lines
1.1 KiB
Plaintext
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = messageParent;
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var _types = require('../types');
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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const isWorkerThread = (() => {
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try {
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// `Require` here to support Node v10
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const {isMainThread, parentPort} = require('worker_threads');
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return !isMainThread && parentPort != null;
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} catch {
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return false;
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}
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})();
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function messageParent(message, parentProcess = process) {
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if (isWorkerThread) {
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// `Require` here to support Node v10
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const {parentPort} = require('worker_threads'); // ! is safe due to `null` check in `isWorkerThread`
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parentPort.postMessage([_types.PARENT_MESSAGE_CUSTOM, message]);
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} else if (typeof parentProcess.send === 'function') {
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parentProcess.send([_types.PARENT_MESSAGE_CUSTOM, message]);
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} else {
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throw new Error('"messageParent" can only be used inside a worker');
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}
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}
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