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refactor(ext/fetch): const for max header cache size (#19496)

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markthree 2023-06-16 00:27:21 +08:00 committed by GitHub
parent 0c50c39c35
commit 43d5644048
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1 changed files with 2 additions and 1 deletions
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ext/fetch/20_headers.js
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@ -105,6 +105,7 @@ function checkForInvalidValueChars(value) {
} }
const HEADER_NAME_CACHE = new SafeMap(); const HEADER_NAME_CACHE = new SafeMap();
const HEADER_NAME_CACHE_SIZE_BOUNDARY = 4096;
function checkHeaderNameForHttpTokenCodePoint(name) { function checkHeaderNameForHttpTokenCodePoint(name) {
if (MapPrototypeHas(HEADER_NAME_CACHE, name)) { if (MapPrototypeHas(HEADER_NAME_CACHE, name)) {
return MapPrototypeGet(HEADER_NAME_CACHE, name); return MapPrototypeGet(HEADER_NAME_CACHE, name);
@ -112,7 +113,7 @@ function checkHeaderNameForHttpTokenCodePoint(name) {
const valid = RegExpPrototypeExec(HTTP_TOKEN_CODE_POINT_RE, name) !== null; const valid = RegExpPrototypeExec(HTTP_TOKEN_CODE_POINT_RE, name) !== null;
if (HEADER_NAME_CACHE.size > 4096) { if (HEADER_NAME_CACHE.size > HEADER_NAME_CACHE_SIZE_BOUNDARY) {
MapPrototypeClear(HEADER_NAME_CACHE); MapPrototypeClear(HEADER_NAME_CACHE);
} }
MapPrototypeSet(HEADER_NAME_CACHE, name, valid); MapPrototypeSet(HEADER_NAME_CACHE, name, valid);