52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
import { rawTransferSupported as rawTransferSupportedBinding } from "../bindings.js";
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let rawTransferIsSupported = null;
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/**
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* Returns `true` if `experimentalRawTransfer` is option is supported.
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*
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* Raw transfer is only supported on 64-bit little-endian systems,
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* and NodeJS >= v22.0.0 or Deno >= v2.0.0.
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*
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* Versions of NodeJS prior to v22.0.0 do not support creating an `ArrayBuffer` larger than 4 GiB.
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* Bun (as at v1.2.4) also does not support creating an `ArrayBuffer` larger than 4 GiB.
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* Support on Deno v1 is unknown and it's EOL, so treating Deno before v2.0.0 as unsupported.
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*
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* No easy way to determining pointer width (64 bit or 32 bit) in JS,
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* so call a function on Rust side to find out.
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*
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* @returns {boolean} - `true` if raw transfer is supported on this platform
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*/
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export function rawTransferSupported() {
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if (rawTransferIsSupported === null) {
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rawTransferIsSupported = rawTransferRuntimeSupported() && rawTransferSupportedBinding();
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}
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return rawTransferIsSupported;
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}
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// Checks copied from:
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// https://github.com/unjs/std-env/blob/ab15595debec9e9115a9c1d31bc7597a8e71dbfd/src/runtimes.ts
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// MIT license: https://github.com/unjs/std-env/blob/ab15595debec9e9115a9c1d31bc7597a8e71dbfd/LICENCE
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function rawTransferRuntimeSupported() {
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let global;
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try {
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global = globalThis;
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} catch {
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return false;
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}
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const isBun = !!global.Bun || !!global.process?.versions?.bun;
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if (isBun) return false;
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const isDeno = !!global.Deno;
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if (isDeno) {
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const match = Deno.version?.deno?.match(/^(\d+)\./);
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return !!match && match[1] * 1 >= 2;
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}
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const isNode = global.process?.release?.name === "node";
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if (!isNode) return false;
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const match = process.version?.match(/^v(\d+)\./);
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return !!match && match[1] * 1 >= 22;
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}
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