Re: [whatwg/streams] Could a byte stream read directly into and out of a SAB (w/o transfer)? (#757) from Domenic Denicola on 2023-03-27 (public-webapps-github@w3.org from March 2023)

From: Domenic Denicola <notifications@github.com>
Date: Mon, 27 Mar 2023 01:06:23 -0700
To: whatwg/streams <streams@noreply.github.com>
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Message-ID: <whatwg/streams/issues/757/1484689197@github.com>

Hmm. I think the idea of `SharedArrayBuffer` was to use the typesystem to encode this sort of guarantee. I.e., if you have a normal `ArrayBuffer`, you know you're safe; if you have a `SharedArrayBuffer`, you're unsafe.

What motivates the desire to let the safety vary independently of the type, for this particular web platform feature? Note that wasm memory can be made shraed using `shared: true` in the `WebAssembly.Memory` constructor, and I suspect most wasm thread-using programs already turn that on.

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Received on Monday, 27 March 2023 08:06:36 UTC