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'use strict';
require('../common');
const assert = require('assert');
const {
Worker, MessageChannel
} = require('worker_threads');
const channel = new MessageChannel();
const workerData = { mesage: channel.port1 };
const transferList = [channel.port1];
const meowScript = () => 'meow';
{
// Should receive the transferList param.
new Worker(`${meowScript}`, { eval: true, workerData, transferList });
}
{
// Should work with more than one MessagePort.
const channel1 = new MessageChannel();
const channel2 = new MessageChannel();
const workerData = { message: channel1.port1, message2: channel2.port1 };
const transferList = [channel1.port1, channel2.port1];
new Worker(`${meowScript}`, { eval: true, workerData, transferList });
}
{
const uint8Array = new Uint8Array([ 1, 2, 3, 4 ]);
assert.deepStrictEqual(uint8Array.length, 4);
new Worker(`
const { parentPort, workerData } = require('worker_threads');
parentPort.postMessage(workerData);
`, {
eval: true,
workerData: uint8Array,
transferList: [uint8Array.buffer]
}).on(
'message',
(message) =>
assert.deepStrictEqual(message, Uint8Array.of(1, 2, 3, 4))
);
assert.deepStrictEqual(uint8Array.length, 0);
}
{
// Should throw on non valid transferList input.
const channel1 = new MessageChannel();
const channel2 = new MessageChannel();
const workerData = { message: channel1.port1, message2: channel2.port1 };
assert.throws(() => new Worker(`${meowScript}`, {
eval: true,
workerData,
transferList: []
}), {
code: 'ERR_MISSING_TRANSFERABLE_IN_TRANSFER_LIST',
message: 'Object that needs transfer was found in message but not ' +
'listed in transferList'
});
}
|
