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Due to a bug in V8, terminating an isolate while a module with top-level await is being evaluated would crash the process. This change makes it so calling `worker.terminate()` will signal the worker to terminate at the next iteration of the event loop, and it schedules a proper termination of the worker's isolate after 2 seconds.
21 lines
695 B
JavaScript
21 lines
695 B
JavaScript
// Test for https://github.com/denoland/deno/issues/12658
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//
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// If a worker is terminated immediately after construction, and the worker's
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// main module uses top-level await, V8 has a chance to crash.
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//
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// These crashes are so rare in debug mode that I've only seen them once. They
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// happen a lot more often in release mode.
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const workerModule = `
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await new Promise(resolve => setTimeout(resolve, 1000));
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`;
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// Iterating 10 times to increase the likelihood of triggering the crash, at
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// least in release mode.
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for (let i = 0; i < 10; i++) {
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const worker = new Worker(
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`data:application/javascript;base64,${btoa(workerModule)}`,
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{ type: "module" },
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);
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worker.terminate();
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}
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