зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
1.6 KiB
C++
68 строки
1.6 KiB
C++
/* 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();
|
|
}
|