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denoland-deno/tests/specs/run/blob_gc_finalization/blob_gc_finalization.js
2024-11-05 06:39:05 +00:00

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JavaScript

// This test creates 128 blobs of 128 MB each. This will only work if the blobs
// and their backing data is GCed as expected.
for (let i = 0; i < 128; i++) {
// Create a 128MB byte array, and then a blob from it.
const buf = new Uint8Array(128 * 1024 * 1024);
new Blob([buf]);
// It is very important that there is a yield here, otherwise the finalizer
// for the blob is not called and the memory is not freed.
await new Promise((resolve) => setTimeout(resolve, 0));
}
console.log("GCed all blobs");