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Ingvar Stepanyan
fa4a842068
Automatic update from web-platform-tests Test that postMessage doesn't block on event loop Per spec postMessage should queue a message up on the target port immediately. Instead, when Workers are involved, some implementations queue a task up on current thread's event loop, which means that in case it gets blocked, some messages are never sent. Closes https://github.com/whatwg/html/issues/5485. -- wpt-commits: 3320205a9d70636efc03cfff340edecd0bee4694 wpt-pr: 23270
19 lines
480 B
HTML
19 lines
480 B
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<script>
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const t = async_test('postMessage and block');
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const w = new Worker('support/postMessage_block_worker.js');
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w.onmessage = t.step_func_done(() => {
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const a = new Int32Array(new SharedArrayBuffer(4));
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w.postMessage(a);
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while (Atomics.load(a, 0) === 0);
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assert_equals(Atomics.load(a, 0), 1);
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});
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</script>
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</body>
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