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The HTML StructuredSerializeWithTransfer algorithm defines that when an untransferable object is in the transfer list, a DataCloneError is thrown. An array buffer that is already transferred is also considered as untransferable. PR-URL: https://github.com/nodejs/node/pull/47604 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
24 lines
698 B
JavaScript
24 lines
698 B
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const { MessageChannel } = require('worker_threads');
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// Make sure that the pools used by the Buffer implementation are not
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// transferable.
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// Refs: https://github.com/nodejs/node/issues/32752
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const a = Buffer.from('hello world');
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const b = Buffer.from('hello world');
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assert.strictEqual(a.buffer, b.buffer);
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const length = a.length;
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const { port1 } = new MessageChannel();
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assert.throws(() => port1.postMessage(a, [ a.buffer ]), {
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code: 25,
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name: 'DataCloneError',
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});
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// Verify that the pool ArrayBuffer has not actually been transferred:
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assert.strictEqual(a.buffer, b.buffer);
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assert.strictEqual(a.length, length);
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