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rangoo94 wants to merge 10 commits into from
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crypto: improve randomUUID performance #37243

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e75bdc2
crypto: decompose randomuuid implementation
rangoo94 Feb 5, 2021
d3403ac
crypto: eliminate intermediate randomuuid buffer
rangoo94 Feb 5, 2021
0b6152e
crypto: optimize randomuuid options access
rangoo94 Feb 5, 2021
952289c
crypto: use faster randomuuid serialization
rangoo94 Feb 5, 2021
f7180c3
crypto: allocate randomuuid hex bytes when needed
rangoo94 Feb 5, 2021
19a4911
crypto: apply code style fixes from review
rangoo94 Feb 6, 2021
74b50ed
crypto: use primordial in favor of prototype chain
rangoo94 Feb 6, 2021
63c612a
crypto: reformat randomuuid builder code
rangoo94 Feb 6, 2021
321ad23
crypto: use nullish assignment when possible
rangoo94 Feb 6, 2021
61f67cf
crypto: reformat randomuuid options destructuring
rangoo94 Feb 6, 2021
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crypto: use nullish assignment when possible 
Co-authored-by: James M Snell <[email protected]>
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@rangoo94 @jasnell
rangoo94 and jasnell committed Feb 24, 2021
commit 321ad2368efac4a7faadb892e189c95740b8c4e8
18 changes: 7 additions & 11 deletions lib/internal/crypto/random.js
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Original file line number Diff line number Diff line change
Expand Up @@ -340,25 +340,21 @@ function serializeUUID(buf, offset = 0) {
}

function getBufferedUUID() {
if (uuidData === undefined) {
uuidData = secureBuffer(16 * kBatchSize);
if (uuidData === undefined)
throw new ERR_OPERATION_FAILED('Out of memory');
}
uuidData ??= secureBuffer(16 * kBatchSize);
if (uuidData === undefined)
throw new ERR_OPERATION_FAILED('Out of memory');

if (uuidBatch === 0) randomFillSync(uuidData);
uuidBatch = (uuidBatch + 1) % kBatchSize;
return serializeUUID(uuidData, uuidBatch * 16);
}

function getUnbufferedUUID() {
let uuidBuf = uuidNotBuffered;
if (uuidBuf === undefined)
uuidBuf = uuidNotBuffered = secureBuffer(16);
if (uuidBuf === undefined)
uuidNotBuffered ??= secureBuffer(16);
if (uuidNotBuffered === undefined)
throw new ERR_OPERATION_FAILED('Out of memory');
randomFillSync(uuidBuf);
return serializeUUID(uuidBuf);
randomFillSync(uuidNotBuffered);
return serializeUUID(uuidNotBuffered);
}

function randomUUID(options) {
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