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Issue #2703 - Part 1: micro-optimize purging expired preflight cache entries.

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The entries in mMethods and mHeaders aren't sorted in any special way,
so we can remove expired entries using UnorderedRemoveElementAt, which
is faster than RemoveElementAt.
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Shadow 2025-03-14 13:39:08 +00:00 • committed by roytam1
commit d678f508de
1 changed files with 8 additions and 5 deletions
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13
netwerk/protocol/http/nsCORSListenerProxy.cpp
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@ -215,15 +215,18 @@ static bool EnsurePreflightCache()
void
nsPreflightCache::CacheEntry::PurgeExpired(TimeStamp now)
{
uint32_t i;
for (i = 0; i < mMethods.Length(); ++i) {
for (uint32_t i = 0, len = mMethods.Length(); i < len; ++i) {
if (now >= mMethods[i].expirationTime) {
mMethods.RemoveElementAt(i--);
mMethods.UnorderedRemoveElementAt(i);
--i; // Examine the element again, if necessary.
--len;
}
}
for (i = 0; i < mHeaders.Length(); ++i) {
for (uint32_t i = 0, len = mHeaders.Length(); i < len; ++i) {
if (now >= mHeaders[i].expirationTime) {
mHeaders.RemoveElementAt(i--);
mHeaders.UnorderedRemoveElementAt(i);
--i; // Examine the element again, if necessary.
--len;
}
}
}