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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsHtml5AtomTable.h"
#include "nsHtml5Atom.h"
#include "nsThreadUtils.h"
nsHtml5AtomEntry::nsHtml5AtomEntry(KeyTypePointer aStr)
: nsStringHashKey(aStr)
, mAtom(new nsHtml5Atom(*aStr))
{
}
nsHtml5AtomEntry::nsHtml5AtomEntry(const nsHtml5AtomEntry& aOther)
: nsStringHashKey(aOther)
, mAtom(nullptr)
{
NS_NOTREACHED("nsHtml5AtomTable is broken and tried to copy an entry");
}
nsHtml5AtomEntry::~nsHtml5AtomEntry()
{
}
nsHtml5AtomTable::nsHtml5AtomTable()
: mRecentlyUsedParserAtoms{}
{
#ifdef DEBUG
NS_GetMainThread(getter_AddRefs(mPermittedLookupThread));
#endif
}
nsHtml5AtomTable::~nsHtml5AtomTable()
{
}
nsIAtom*
nsHtml5AtomTable::GetAtom(const nsAString& aKey)
{
#ifdef DEBUG
{
nsCOMPtr<nsIThread> currentThread;
NS_GetCurrentThread(getter_AddRefs(currentThread));
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();
}
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