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38 lines
1.1 KiB
38 lines
1.1 KiB
4 weeks ago
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'use strict';
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var globalThis = require('../internals/global-this');
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var getBuiltInNodeModule = require('../internals/get-built-in-node-module');
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var PROPER_STRUCTURED_CLONE_TRANSFER = require('../internals/structured-clone-proper-transfer');
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var structuredClone = globalThis.structuredClone;
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var $ArrayBuffer = globalThis.ArrayBuffer;
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var $MessageChannel = globalThis.MessageChannel;
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var detach = false;
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var WorkerThreads, channel, buffer, $detach;
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if (PROPER_STRUCTURED_CLONE_TRANSFER) {
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detach = function (transferable) {
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structuredClone(transferable, { transfer: [transferable] });
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};
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} else if ($ArrayBuffer) try {
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if (!$MessageChannel) {
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WorkerThreads = getBuiltInNodeModule('worker_threads');
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if (WorkerThreads) $MessageChannel = WorkerThreads.MessageChannel;
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}
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if ($MessageChannel) {
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channel = new $MessageChannel();
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buffer = new $ArrayBuffer(2);
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$detach = function (transferable) {
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channel.port1.postMessage(null, [transferable]);
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};
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if (buffer.byteLength === 2) {
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$detach(buffer);
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if (buffer.byteLength === 0) detach = $detach;
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}
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}
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} catch (error) { /* empty */ }
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module.exports = detach;
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