You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
39 lines
1.1 KiB
39 lines
1.1 KiB
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', {
|
|
value: true
|
|
});
|
|
exports.default = messageParent;
|
|
|
|
var _types = require('../types');
|
|
|
|
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
const isWorkerThread = (() => {
|
|
try {
|
|
// `Require` here to support Node v10
|
|
const {isMainThread, parentPort} = require('worker_threads');
|
|
|
|
return !isMainThread && parentPort != null;
|
|
} catch {
|
|
return false;
|
|
}
|
|
})();
|
|
|
|
function messageParent(message, parentProcess = process) {
|
|
if (isWorkerThread) {
|
|
// `Require` here to support Node v10
|
|
const {parentPort} = require('worker_threads'); // ! is safe due to `null` check in `isWorkerThread`
|
|
|
|
parentPort.postMessage([_types.PARENT_MESSAGE_CUSTOM, message]);
|
|
} else if (typeof parentProcess.send === 'function') {
|
|
parentProcess.send([_types.PARENT_MESSAGE_CUSTOM, message]);
|
|
} else {
|
|
throw new Error('"messageParent" can only be used inside a worker');
|
|
}
|
|
}
|