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| author | adeshkp <adeshkp@users.noreply.github.com> | 2018-08-04 14:22:42 +0530 |
|---|---|---|
| committer | Moonchild <mcwerewolf@gmail.com> | 2018-08-04 10:52:42 +0200 |
| commit | 2bc00efe7bb826d683257264471878c05757f2bb (patch) | |
| tree | 334b9fdbf8401ad21638b083ca28c84e0bd8a7ed /parser/html/nsHtml5AtomTable.cpp | |
| parent | 2653f1dd0673f41068622f7b663a1ffa2c1db7ba (diff) | |
| download | UXP-2bc00efe7bb826d683257264471878c05757f2bb.tar UXP-2bc00efe7bb826d683257264471878c05757f2bb.tar.gz UXP-2bc00efe7bb826d683257264471878c05757f2bb.tar.lz UXP-2bc00efe7bb826d683257264471878c05757f2bb.tar.xz UXP-2bc00efe7bb826d683257264471878c05757f2bb.zip | |
Improve nsHtml5AtomTable performance (#693)
* cpp change
* h change
Diffstat (limited to 'parser/html/nsHtml5AtomTable.cpp')
| -rw-r--r-- | parser/html/nsHtml5AtomTable.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/parser/html/nsHtml5AtomTable.cpp b/parser/html/nsHtml5AtomTable.cpp index d523f58b0..d9c18485d 100644 --- a/parser/html/nsHtml5AtomTable.cpp +++ b/parser/html/nsHtml5AtomTable.cpp @@ -31,7 +31,11 @@ nsHtml5AtomTable::nsHtml5AtomTable() } nsHtml5AtomTable::~nsHtml5AtomTable() + : mRecentlyUsedParserAtoms{} { +#ifdef DEBUG + NS_GetMainThread(getter_AddRefs(mPermittedLookupThread)); +#endif } nsIAtom* @@ -44,13 +48,23 @@ nsHtml5AtomTable::GetAtom(const nsAString& aKey) NS_ASSERTION(mPermittedLookupThread == currentThread, "Wrong thread!"); } #endif + + uint32_t index = mozilla::HashString(aKey) % RECENTLY_USED_PARSER_ATOMS_SIZE; + nsIAtom* cachedAtom = mRecentlyUsedParserAtoms[index]; + if (cachedAtom && cachedAtom->Equals(aKey)) { + return cachedAtom; + } + nsIAtom* atom = NS_GetStaticAtom(aKey); if (atom) { + mRecentlyUsedParserAtoms[index] = atom; return atom; } nsHtml5AtomEntry* entry = mTable.PutEntry(aKey); if (!entry) { return nullptr; } + + mRecentlyUsedParserAtoms[index] = entry->GetAtom(); return entry->GetAtom(); } |